Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

78 files changed, 32498 insertions, 0 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
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+#
+# Watchdog device configuration
+#
+
+menuconfig WATCHDOG
+	bool "Watchdog Timer Support"
+	---help---
+	  If you say Y here (and to one of the following options) and create a
+	  character special file /dev/watchdog with major number 10 and minor
+	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
+	  subsequently opening the file and then failing to write to it for
+	  longer than 1 minute will result in rebooting the machine. This
+	  could be useful for a networked machine that needs to come back
+	  on-line as fast as possible after a lock-up. There's both a watchdog
+	  implementation entirely in software (which can sometimes fail to
+	  reboot the machine) and a driver for hardware watchdog boards, which
+	  are more robust and can also keep track of the temperature inside
+	  your computer. For details, read
+	  <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
+
+	  The watchdog is usually used together with the watchdog daemon
+	  which is available from
+	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
+	  also monitor NFS connections and can reboot the machine when the process
+	  table is full.
+
+	  If unsure, say N.
+
+if WATCHDOG
+
+config WATCHDOG_NOWAYOUT
+	bool "Disable watchdog shutdown on close"
+	help
+	  The default watchdog behaviour (which you get if you say N here) is
+	  to stop the timer if the process managing it closes the file
+	  /dev/watchdog. It's always remotely possible that this process might
+	  get killed. If you say Y here, the watchdog cannot be stopped once
+	  it has been started.
+
+#
+# General Watchdog drivers
+#
+
+comment "Watchdog Device Drivers"
+
+# Architecture Independent
+
+config SOFT_WATCHDOG
+	tristate "Software watchdog"
+	help
+	  A software monitoring watchdog. This will fail to reboot your system
+	  from some situations that the hardware watchdog will recover
+	  from. Equally it's a lot cheaper to install.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called softdog.
+
+# ALPHA Architecture
+
+# ARM Architecture
+
+config AT91RM9200_WATCHDOG
+	tristate "AT91RM9200 watchdog"
+	depends on ARCH_AT91RM9200
+	help
+	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
+	  system when the timeout is reached.
+
+config AT91SAM9X_WATCHDOG
+	tristate "AT91SAM9X / AT91CAP9 watchdog"
+	depends on ARCH_AT91 && !ARCH_AT91RM9200
+	help
+	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
+	  reboot your system when the timeout is reached.
+
+config 21285_WATCHDOG
+	tristate "DC21285 watchdog"
+	depends on FOOTBRIDGE
+	help
+	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
+	  here if you wish to use this. Alternatively say M to compile the
+	  driver as a module, which will be called wdt285.
+
+	  This driver does not work on all machines. In particular, early CATS
+	  boards have hardware problems that will cause the machine to simply
+	  lock up if the watchdog fires.
+
+	  "If in doubt, leave it out" - say N.
+
+config 977_WATCHDOG
+	tristate "NetWinder WB83C977 watchdog"
+	depends on FOOTBRIDGE && ARCH_NETWINDER
+	help
+	  Say Y here to include support for the WB977 watchdog included in
+	  NetWinder machines. Alternatively say M to compile the driver as
+	  a module, which will be called wdt977.
+
+	  Not sure? It's safe to say N.
+
+config IXP2000_WATCHDOG
+	tristate "IXP2000 Watchdog"
+	depends on ARCH_IXP2000
+	help
+	  Say Y here if to include support for the watchdog timer
+	  in the Intel IXP2000(2400, 2800, 2850) network processors.
+	  This driver can be built as a module by choosing M. The module
+	  will be called ixp2000_wdt.
+
+	  Say N if you are unsure.
+
+config IXP4XX_WATCHDOG
+	tristate "IXP4xx Watchdog"
+	depends on ARCH_IXP4XX
+	help
+	  Say Y here if to include support for the watchdog timer
+	  in the Intel IXP4xx network processors. This driver can
+	  be built as a module by choosing M. The module will
+	  be called ixp4xx_wdt.
+
+	  Note: The internal IXP4xx watchdog does a soft CPU reset
+	  which doesn't reset any peripherals. There are circumstances
+	  where the watchdog will fail to reset the board correctly
+	  (e.g., if the boot ROM is in an unreadable state).
+
+	  Say N if you are unsure.
+
+config KS8695_WATCHDOG
+	tristate "KS8695 watchdog"
+	depends on ARCH_KS8695
+	help
+	  Watchdog timer embedded into KS8695 processor. This will reboot your
+	  system when the timeout is reached.
+
+config S3C2410_WATCHDOG
+	tristate "S3C2410 Watchdog"
+	depends on ARCH_S3C2410
+	help
+	  Watchdog timer block in the Samsung S3C2410 chips. This will
+	  reboot the system when the timer expires with the watchdog
+	  enabled.
+
+	  The driver is limited by the speed of the system's PCLK
+	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
+	  then watchdog intervals of over approximately 20seconds are
+	  unavailable.
+
+	  The driver can be built as a module by choosing M, and will
+	  be called s3c2410_wdt
+
+config SA1100_WATCHDOG
+	tristate "SA1100/PXA2xx watchdog"
+	depends on ARCH_SA1100 || ARCH_PXA
+	help
+	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
+	  reboot your system when timeout is reached.
+
+	  NOTE: once enabled, this timer cannot be disabled.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sa1100_wdt.
+
+config MPCORE_WATCHDOG
+	tristate "MPcore watchdog"
+	depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
+	help
+	  Watchdog timer embedded into the MPcore system.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mpcore_wdt.
+
+config EP93XX_WATCHDOG
+	tristate "EP93xx Watchdog"
+	depends on ARCH_EP93XX
+	help
+	  Say Y here if to include support for the watchdog timer
+	  embedded in the Cirrus Logic EP93xx family of devices.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ep93xx_wdt.
+
+config OMAP_WATCHDOG
+	tristate "OMAP Watchdog"
+	depends on ARCH_OMAP16XX || ARCH_OMAP24XX
+	help
+	  Support for TI OMAP1610/OMAP1710/OMAP2420 watchdog.  Say 'Y' here to
+	  enable the OMAP1610/OMAP1710 watchdog timer.
+
+config PNX4008_WATCHDOG
+	tristate "PNX4008 Watchdog"
+	depends on ARCH_PNX4008
+	help
+	  Say Y here if to include support for the watchdog timer
+	  in the PNX4008 processor.
+	  This driver can be built as a module by choosing M. The module
+	  will be called pnx4008_wdt.
+
+	  Say N if you are unsure.
+
+config IOP_WATCHDOG
+	tristate "IOP Watchdog"
+	depends on PLAT_IOP
+	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
+	help
+	  Say Y here if to include support for the watchdog timer
+	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
+	  be built as a module by choosing M. The module will
+	  be called iop_wdt.
+
+	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
+	  affect both cores and the peripherals of the IOP.  The ATU-X
+	  and/or ATUe configuration registers will remain intact, but if
+	  operating as an Root Complex and/or Central Resource, the PCI-X
+	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
+
+config DAVINCI_WATCHDOG
+	tristate "DaVinci watchdog"
+	depends on ARCH_DAVINCI
+	help
+	  Say Y here if to include support for the watchdog timer
+	  in the DaVinci DM644x/DM646x processors.
+	  To compile this driver as a module, choose M here: the
+	  module will be called davinci_wdt.
+
+	  NOTE: once enabled, this timer cannot be disabled.
+	  Say N if you are unsure.
+
+config ORION5X_WATCHDOG
+	tristate "Orion5x watchdog"
+	depends on ARCH_ORION5X
+	help
+	  Say Y here if to include support for the watchdog timer
+	  in the Orion5x ARM SoCs.
+	  To compile this driver as a module, choose M here: the
+	  module will be called orion5x_wdt.
+
+config AST_WATCHDOG
+	tristate "ASPEED GUC watchdog"
+	depends on WATCHDOG
+	help
+	  Watchdog timer for ASPEED chips.
+
+config AST_WATCHDOG_REARM_DUAL_BOOT
+  bool "Rearm dual boot watchdog"
+  default n
+	depends on AST_WATCHDOG
+	help
+	  Rearm dual boot watchdog or not during boot
+
+# ARM26 Architecture
+
+# AVR32 Architecture
+
+config AT32AP700X_WDT
+	tristate "AT32AP700x watchdog"
+	depends on CPU_AT32AP700X
+	help
+	  Watchdog timer embedded into AT32AP700x devices. This will reboot
+	  your system when the timeout is reached.
+
+# BLACKFIN Architecture
+
+config BFIN_WDT
+	tristate "Blackfin On-Chip Watchdog Timer"
+	depends on BLACKFIN
+	---help---
+	  If you say yes here you will get support for the Blackfin On-Chip
+	  Watchdog Timer. If you have one of these processors and wish to
+	  have watchdog support enabled, say Y, otherwise say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called bfin_wdt.
+
+# CRIS Architecture
+
+# FRV Architecture
+
+# H8300 Architecture
+
+# X86 (i386 + ia64 + x86_64) Architecture
+
+config ACQUIRE_WDT
+	tristate "Acquire SBC Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on Single Board
+	  Computers produced by Acquire Inc (and others). This watchdog
+	  simply watches your kernel to make sure it doesn't freeze, and if
+	  it does, it reboots your computer after a certain amount of time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called acquirewdt.
+
+	  Most people will say N.
+
+config ADVANTECH_WDT
+	tristate "Advantech SBC Watchdog Timer"
+	depends on X86
+	help
+	  If you are configuring a Linux kernel for the Advantech single-board
+	  computer, say `Y' here to support its built-in watchdog timer
+	  feature. More information can be found at
+	  <http://www.advantech.com.tw/products/>
+
+config ALIM1535_WDT
+	tristate "ALi M1535 PMU Watchdog Timer"
+	depends on X86 && PCI
+	---help---
+	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called alim1535_wdt.
+
+	  Most people will say N.
+
+config ALIM7101_WDT
+	tristate "ALi M7101 PMU Computer Watchdog"
+	depends on PCI
+	help
+	  This is the driver for the hardware watchdog on the ALi M7101 PMU
+	  as used in the x86 Cobalt servers and also found in some
+	  SPARC Netra servers too.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called alim7101_wdt.
+
+	  Most people will say N.
+
+config GEODE_WDT
+	tristate "AMD Geode CS5535/CS5536 Watchdog"
+	depends on MGEODE_LX
+	help
+	  This driver enables a watchdog capability built into the
+	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
+	  processors.  This watchdog watches your kernel to make sure
+	  it doesn't freeze, and if it does, it reboots your computer after
+	  a certain amount of time.
+
+	  You can compile this driver directly into the kernel, or use
+	  it as a module.  The module will be called geodewdt.
+
+config SC520_WDT
+	tristate "AMD Elan SC520 processor Watchdog"
+	depends on X86
+	help
+	  This is the driver for the hardware watchdog built in to the
+	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
+	  This watchdog simply watches your kernel to make sure it doesn't
+	  freeze, and if it does, it reboots your computer after a certain
+	  amount of time.
+
+	  You can compile this driver directly into the kernel, or use
+	  it as a module.  The module will be called sc520_wdt.
+
+config EUROTECH_WDT
+	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
+	depends on X86
+	help
+	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
+	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
+	  information are at <http://www.eurotech.it/>.
+
+config IB700_WDT
+	tristate "IB700 SBC Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the IB700 Single
+	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
+	  simply watches your kernel to make sure it doesn't freeze, and if
+	  it does, it reboots your computer after a certain amount of time.
+
+	  This driver is like the WDT501 driver but for slightly different hardware.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ib700wdt.
+
+	  Most people will say N.
+
+config IBMASR
+	tristate "IBM Automatic Server Restart"
+	depends on X86
+	help
+	  This is the driver for the IBM Automatic Server Restart watchdog
+	  timer built-in into some eServer xSeries machines.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ibmasr.
+
+config WAFER_WDT
+	tristate "ICP Single Board Computer Watchdog Timer"
+	depends on X86
+	help
+	  This is a driver for the hardware watchdog on the ICP Single
+	  Board Computer. This driver is working on (at least) the following
+	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wafer5823wdt.
+
+config I6300ESB_WDT
+	tristate "Intel 6300ESB Timer/Watchdog"
+	depends on X86 && PCI
+	---help---
+	  Hardware driver for the watchdog timer built into the Intel
+	  6300ESB controller hub.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called i6300esb.
+
+config ITCO_WDT
+	tristate "Intel TCO Timer/Watchdog"
+	depends on (X86 || IA64) && PCI
+	---help---
+	  Hardware driver for the intel TCO timer based watchdog devices.
+	  These drivers are included in the Intel 82801 I/O Controller
+	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
+	  controller hub.
+
+	  The TCO (Total Cost of Ownership) timer is a watchdog timer
+	  that will reboot the machine after its second expiration. The
+	  expiration time can be configured with the "heartbeat" parameter.
+
+	  On some motherboards the driver may fail to reset the chipset's
+	  NO_REBOOT flag which prevents the watchdog from rebooting the
+	  machine. If this is the case you will get a kernel message like
+	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called iTCO_wdt.
+
+config ITCO_VENDOR_SUPPORT
+	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
+	depends on ITCO_WDT
+	---help---
+	  Add vendor specific support to the intel TCO timer based watchdog
+	  devices. At this moment we only have additional support for some
+	  SuperMicro Inc. motherboards.
+
+config IT8712F_WDT
+	tristate "IT8712F (Smart Guardian) Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the built-in watchdog timer on the IT8712F
+	  Super I/0 chipset used on many motherboards.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called it8712f_wdt.
+
+config IT87_WDT
+	tristate "IT87 Watchdog Timer"
+	depends on X86 && EXPERIMENTAL
+	---help---
+	  This is the driver for the hardware watchdog on the ITE IT8716,
+	  IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog
+	  simply watches your kernel to make sure it doesn't freeze, and if
+	  it does, it reboots your computer after a certain amount of time.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called it87_wdt.
+
+config HP_WATCHDOG
+	tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
+	depends on X86
+	help
+	  A software monitoring watchdog and NMI sourcing driver. This driver
+	  will detect lockups and provide stack trace. Also, when an NMI
+	  occurs this driver will make the necessary BIOS calls to log
+	  the cause of the NMI. This is a driver that will only load on a
+	  HP ProLiant system with a minimum of iLO2 support.
+	  To compile this driver as a module, choose M here: the
+	  module will be called hpwdt.
+
+config SC1200_WDT
+	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
+	depends on X86
+	help
+	  This is a driver for National Semiconductor PC87307/PC97307 hardware
+	  watchdog cards as found on the SC1200. This watchdog is mainly used
+	  for power management purposes and can be used to power down the device
+	  during inactivity periods (includes interrupt activity monitoring).
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sc1200wdt.
+
+	  Most people will say N.
+
+config SCx200_WDT
+	tristate "National Semiconductor SCx200 Watchdog"
+	depends on SCx200 && PCI
+	help
+	  Enable the built-in watchdog timer support on the National
+	  Semiconductor SCx200 processors.
+
+	  If compiled as a module, it will be called scx200_wdt.
+
+config PC87413_WDT
+	tristate "NS PC87413 watchdog"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the PC87413 chipset
+	  This watchdog simply watches your kernel to make sure it doesn't
+	  freeze, and if it does, it reboots your computer after a certain
+	  amount of time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pc87413_wdt.
+
+	  Most people will say N.
+
+config RDC321X_WDT
+	tristate "RDC R-321x SoC watchdog"
+	depends on X86_RDC321X
+	help
+	  This is the driver for the built in hardware watchdog
+	  in the RDC R-321x SoC.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rdc321x_wdt.
+
+config 60XX_WDT
+	tristate "SBC-60XX Watchdog Timer"
+	depends on X86
+	help
+	  This driver can be used with the watchdog timer found on some
+	  single board computers, namely the 6010 PII based computer.
+	  It may well work with other cards.  It reads port 0x443 to enable
+	  and re-set the watchdog timer, and reads port 0x45 to disable
+	  the watchdog.  If you have a card that behave in similar ways,
+	  you can probably make this driver work with your card as well.
+
+	  You can compile this driver directly into the kernel, or use
+	  it as a module.  The module will be called sbc60xxwdt.
+
+config SBC8360_WDT
+	tristate "SBC8360 Watchdog Timer"
+	depends on X86
+	---help---
+
+	  This is the driver for the hardware watchdog on the SBC8360 Single
+	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sbc8360.ko.
+
+	  Most people will say N.
+
+config SBC7240_WDT
+	tristate "SBC Nano 7240 Watchdog Timer"
+	depends on X86_32
+	---help---
+	  This is the driver for the hardware watchdog found on the IEI
+	  single board computers EPIC Nano 7240 (and likely others). This
+	  watchdog simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sbc7240_wdt.
+
+config CPU5_WDT
+	tristate "SMA CPU5 Watchdog"
+	depends on X86
+	---help---
+	  TBD.
+	  To compile this driver as a module, choose M here: the
+	  module will be called cpu5wdt.
+
+config SMSC37B787_WDT
+	tristate "Winbond SMsC37B787 Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog component on the
+	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
+	  from Vision Systems and maybe others.
+
+	  This watchdog simply watches your kernel to make sure it doesn't
+	  freeze, and if it does, it reboots your computer after a certain
+	  amount of time.
+
+	  Usually a userspace daemon will notify the kernel WDT driver that
+	  userspace is still alive, at regular intervals.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called smsc37b787_wdt.
+
+	  Most people will say N.
+
+config W83627HF_WDT
+	tristate "W83627HF Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the W83627HF chipset
+	  as used in Advantech PC-9578 and Tyan S2721-533 motherboards
+	  (and likely others).  This watchdog simply watches your kernel to
+	  make sure it doesn't freeze, and if it does, it reboots your computer
+	  after a certain amount of time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called w83627hf_wdt.
+
+	  Most people will say N.
+
+config W83697HF_WDT
+	tristate "W83697HF/W83697HG Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the W83697HF/HG
+	  chipset as used in Dedibox/VIA motherboards (and likely others).
+	  This watchdog simply watches your kernel to make sure it doesn't
+	  freeze, and if it does, it reboots your computer after a certain
+	  amount of time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called w83697hf_wdt.
+
+	  Most people will say N.
+
+config W83697UG_WDT
+	tristate "W83697UG/W83697UF Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the W83697UG/UF
+	  chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
+	  This watchdog simply watches your kernel to make sure it doesn't
+	  freeze, and if it does, it reboots your computer after a certain
+	  amount of time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called w83697ug_wdt.
+
+	  Most people will say N.
+
+config W83877F_WDT
+	tristate "W83877F (EMACS) Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the W83877F chipset
+	  as used in EMACS PC-104 motherboards (and likely others).  This
+	  watchdog simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called w83877f_wdt.
+
+	  Most people will say N.
+
+config W83977F_WDT
+	tristate "W83977F (PCM-5335) Watchdog Timer"
+	depends on X86
+	---help---
+	  This is the driver for the hardware watchdog on the W83977F I/O chip
+	  as used in AAEON's PCM-5335 SBC (and likely others).  This
+	  watchdog simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called w83977f_wdt.
+
+config MACHZ_WDT
+	tristate "ZF MachZ Watchdog"
+	depends on X86
+	---help---
+	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
+	  N.  This is the driver for the watchdog timer built-in on that
+	  processor using ZF-Logic interface.  This watchdog simply watches
+	  your kernel to make sure it doesn't freeze, and if it does, it
+	  reboots your computer after a certain amount of time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called machzwd.
+
+config SBC_EPX_C3_WATCHDOG
+	tristate "Winsystems SBC EPX-C3 watchdog"
+	depends on X86
+	---help---
+	  This is the driver for the built-in watchdog timer on the EPX-C3
+	  Single-board computer made by Winsystems, Inc.
+
+	  *Note*: This hardware watchdog is not probeable and thus there
+	  is no way to know if writing to its IO address will corrupt
+	  your system or have any real effect.  The only way to be sure
+	  that this driver does what you want is to make sure you
+	  are running it on an EPX-C3 from Winsystems with the watchdog
+	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
+	  IO ports.  Basically, the assumption is made that if you compile
+	  this driver into your kernel and/or load it as a module, that you
+	  know what you are doing and that you are in fact running on an
+	  EPX-C3 board!
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sbc_epx_c3.
+
+# M32R Architecture
+
+# M68K Architecture
+
+# M68KNOMMU Architecture
+
+# MIPS Architecture
+
+config RC32434_WDT
+	tristate "IDT RC32434 SoC Watchdog Timer"
+	depends on MIKROTIK_RB532
+	help
+	  Hardware driver for the IDT RC32434 SoC built-in
+	  watchdog timer.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rc32434_wdt.
+
+config INDYDOG
+	tristate "Indy/I2 Hardware Watchdog"
+	depends on SGI_HAS_INDYDOG
+	help
+	  Hardware driver for the Indy's/I2's watchdog. This is a
+	  watchdog timer that will reboot the machine after a 60 second
+	  timer expired and no process has written to /dev/watchdog during
+	  that time.
+
+config WDT_MTX1
+	tristate "MTX-1 Hardware Watchdog"
+	depends on MIPS_MTX1
+	help
+	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
+	  will reboot the machine after a 100 seconds timer expired.
+
+config WDT_RM9K_GPI
+	tristate "RM9000/GPI hardware watchdog"
+	depends on CPU_RM9000
+	help
+	  Watchdog implementation using the GPI hardware found on
+	  PMC-Sierra RM9xxx CPUs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rm9k_wdt.
+
+config SIBYTE_WDOG
+	tristate "Sibyte SoC hardware watchdog"
+	depends on CPU_SB1
+	help
+	  Watchdog driver for the built in watchdog hardware in Sibyte
+	  SoC processors.  There are apparently two watchdog timers
+	  on such processors; this driver supports only the first one,
+	  because currently Linux only supports exporting one watchdog
+	  to userspace.
+
+	  To compile this driver as a loadable module, choose M here.
+	  The module will be called sb_wdog.
+
+config AR7_WDT
+	tristate "TI AR7 Watchdog Timer"
+	depends on AR7
+	help
+	  Hardware driver for the TI AR7 Watchdog Timer.
+
+config TXX9_WDT
+	tristate "Toshiba TXx9 Watchdog Timer"
+	depends on CPU_TX39XX || CPU_TX49XX
+	help
+	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
+
+# PARISC Architecture
+
+# POWERPC Architecture
+
+config MPC5200_WDT
+	tristate "MPC5200 Watchdog Timer"
+	depends on PPC_MPC52xx
+
+config 8xxx_WDT
+	tristate "MPC8xxx Platform Watchdog Timer"
+	depends on PPC_8xx || PPC_83xx || PPC_86xx
+	help
+	  This driver is for a SoC level watchdog that exists on some
+	  Freescale PowerPC processors. So far this driver supports:
+	  - MPC8xx watchdogs
+	  - MPC83xx watchdogs
+	  - MPC86xx watchdogs
+
+	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
+
+config MV64X60_WDT
+	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
+	depends on MV64X60
+
+config BOOKE_WDT
+	bool "PowerPC Book-E Watchdog Timer"
+	depends on BOOKE || 4xx
+	---help---
+	  Please see Documentation/watchdog/watchdog-api.txt for
+	  more information.
+
+# PPC64 Architecture
+
+config WATCHDOG_RTAS
+	tristate "RTAS watchdog"
+	depends on PPC_RTAS
+	help
+	  This driver adds watchdog support for the RTAS watchdog.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called wdrtas.
+
+# S390 Architecture
+
+config ZVM_WATCHDOG
+	tristate "z/VM Watchdog Timer"
+	depends on S390
+	help
+	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
+	  provide a virtual watchdog timer to their guest that cause a
+	  user define Control Program command to be executed after a
+	  timeout.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called vmwatchdog.
+
+# SUPERH (sh + sh64) Architecture
+
+config SH_WDT
+	tristate "SuperH Watchdog"
+	depends on SUPERH && (CPU_SH3 || CPU_SH4)
+	help
+	  This driver adds watchdog support for the integrated watchdog in the
+	  SuperH processors. If you have one of these processors and wish
+	  to have watchdog support enabled, say Y, otherwise say N.
+
+	  As a side note, saying Y here will automatically boost HZ to 1000
+	  so that the timer has a chance to clear the overflow counter. On
+	  slower systems (such as the SH-2 and SH-3) this will likely yield
+	  some performance issues. As such, the WDT should be avoided here
+	  unless it is absolutely necessary.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called shwdt.
+
+config SH_WDT_MMAP
+	bool "Allow mmap of SH WDT"
+	default n
+	depends on SH_WDT
+	help
+	  If you say Y here, user applications will be able to mmap the
+	  WDT/CPG registers.
+
+# SPARC Architecture
+
+# SPARC64 Architecture
+
+config WATCHDOG_CP1XXX
+	tristate "CP1XXX Hardware Watchdog support"
+	depends on SPARC64 && PCI
+	---help---
+	  This is the driver for the hardware watchdog timers present on
+	  Sun Microsystems CompactPCI models CP1400 and CP1500.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called cpwatchdog.
+
+	  If you do not have a CompactPCI model CP1400 or CP1500, or
+	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
+	  you should say N to this option.
+
+config WATCHDOG_RIO
+	tristate "RIO Hardware Watchdog support"
+	depends on SPARC64 && PCI
+	help
+	  Say Y here to support the hardware watchdog capability on Sun RIO
+	  machines.  The watchdog timeout period is normally one minute but
+	  can be changed with a boot-time parameter.
+
+# XTENSA Architecture
+
+#
+# ISA-based Watchdog Cards
+#
+
+comment "ISA-based Watchdog Cards"
+	depends on ISA
+
+config PCWATCHDOG
+	tristate "Berkshire Products ISA-PC Watchdog"
+	depends on ISA
+	---help---
+	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
+	  This card simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time. This driver is like the WDT501 driver but for different
+	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
+	  watchdog cards can be ordered from <http://www.berkprod.com/>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pcwd.
+
+	  Most people will say N.
+
+config MIXCOMWD
+	tristate "Mixcom Watchdog"
+	depends on ISA
+	---help---
+	  This is a driver for the Mixcom hardware watchdog cards.  This
+	  watchdog simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mixcomwd.
+
+	  Most people will say N.
+
+config WDT
+	tristate "WDT Watchdog timer"
+	depends on ISA
+	---help---
+	  If you have a WDT500P or WDT501P watchdog board, say Y here,
+	  otherwise N. It is not possible to probe for this board, which means
+	  that you have to inform the kernel about the IO port and IRQ that
+	  is needed (you can do this via the io and irq parameters)
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wdt.
+
+config WDT_501
+	bool "WDT501 features"
+	depends on WDT
+	help
+	  Saying Y here and creating a character special file /dev/temperature
+	  with major number 10 and minor number 131 ("man mknod") will give
+	  you a thermometer inside your computer: reading from
+	  /dev/temperature yields one byte, the temperature in degrees
+	  Fahrenheit. This works only if you have a WDT501P watchdog board
+	  installed.
+
+	  If you want to enable the Fan Tachometer on the WDT501P, then you
+	  can do this via the tachometer parameter. Only do this if you have a
+	  fan tachometer actually set up.
+
+#
+# PCI-based Watchdog Cards
+#
+
+comment "PCI-based Watchdog Cards"
+	depends on PCI
+
+config PCIPCWATCHDOG
+	tristate "Berkshire Products PCI-PC Watchdog"
+	depends on PCI
+	---help---
+	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
+	  This card simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time. The card can also monitor the internal temperature of the PC.
+	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pcwd_pci.
+
+	  Most people will say N.
+
+config WDTPCI
+	tristate "PCI-WDT500/501 Watchdog timer"
+	depends on PCI
+	---help---
+	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wdt_pci.
+
+config WDT_501_PCI
+	bool "PCI-WDT501 features"
+	depends on WDTPCI
+	help
+	  Saying Y here and creating a character special file /dev/temperature
+	  with major number 10 and minor number 131 ("man mknod") will give
+	  you a thermometer inside your computer: reading from
+	  /dev/temperature yields one byte, the temperature in degrees
+	  Fahrenheit. This works only if you have a PCI-WDT501 watchdog board
+	  installed.
+
+	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
+	  can do this via the tachometer parameter. Only do this if you have a
+	  fan tachometer actually set up.
+
+#
+# USB-based Watchdog Cards
+#
+
+comment "USB-based Watchdog Cards"
+	depends on USB
+
+config USBPCWATCHDOG
+	tristate "Berkshire Products USB-PC Watchdog"
+	depends on USB
+	---help---
+	  This is the driver for the Berkshire Products USB-PC Watchdog card.
+	  This card simply watches your kernel to make sure it doesn't freeze,
+	  and if it does, it reboots your computer after a certain amount of
+	  time. The card can also monitor the internal temperature of the PC.
+	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pcwd_usb.
+
+	  Most people will say N.
+
+endif # WATCHDOG
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
new file mode 100644
index 0000000..ba47642
--- /dev/null
+++ b/drivers/watchdog/Makefile
@@ -0,0 +1,137 @@
+#
+# Makefile for the WatchDog device drivers.
+#
+
+# Only one watchdog can succeed. We probe the ISA/PCI/USB based
+# watchdog-cards first, then the architecture specific watchdog
+# drivers and then the architecture independant "softdog" driver.
+# This means that if your ISA/PCI/USB card isn't detected that
+# you can fall back to an architecture specific driver and if
+# that also fails then you can fall back to the software watchdog
+# to give you some cover.
+
+# ISA-based Watchdog Cards
+obj-$(CONFIG_PCWATCHDOG) += pcwd.o
+obj-$(CONFIG_MIXCOMWD) += mixcomwd.o
+obj-$(CONFIG_WDT) += wdt.o
+
+# PCI-based Watchdog Cards
+obj-$(CONFIG_PCIPCWATCHDOG) += pcwd_pci.o
+obj-$(CONFIG_WDTPCI) += wdt_pci.o
+
+# USB-based Watchdog Cards
+obj-$(CONFIG_USBPCWATCHDOG) += pcwd_usb.o
+
+# ALPHA Architecture
+
+# ARM Architecture
+obj-$(CONFIG_AT91RM9200_WATCHDOG) += at91rm9200_wdt.o
+obj-$(CONFIG_AT91SAM9X_WATCHDOG) += at91sam9_wdt.o
+obj-$(CONFIG_OMAP_WATCHDOG) += omap_wdt.o
+obj-$(CONFIG_21285_WATCHDOG) += wdt285.o
+obj-$(CONFIG_977_WATCHDOG) += wdt977.o
+obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
+obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
+obj-$(CONFIG_KS8695_WATCHDOG) += ks8695_wdt.o
+obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
+obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
+obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o
+obj-$(CONFIG_EP93XX_WATCHDOG) += ep93xx_wdt.o
+obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o
+obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o
+obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o
+obj-$(CONFIG_ORION5X_WATCHDOG) += orion5x_wdt.o
+obj-$(CONFIG_AST_WATCHDOG) += ast_wdt.o
+
+# ARM26 Architecture
+
+# AVR32 Architecture
+obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
+
+# BLACKFIN Architecture
+obj-$(CONFIG_BFIN_WDT) += bfin_wdt.o
+
+# CRIS Architecture
+
+# FRV Architecture
+
+# H8300 Architecture
+
+# X86 (i386 + ia64 + x86_64) Architecture
+obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o
+obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o
+obj-$(CONFIG_ALIM1535_WDT) += alim1535_wdt.o
+obj-$(CONFIG_ALIM7101_WDT) += alim7101_wdt.o
+obj-$(CONFIG_GEODE_WDT) += geodewdt.o
+obj-$(CONFIG_SC520_WDT) += sc520_wdt.o
+obj-$(CONFIG_EUROTECH_WDT) += eurotechwdt.o
+obj-$(CONFIG_IB700_WDT) += ib700wdt.o
+obj-$(CONFIG_IBMASR) += ibmasr.o
+obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
+obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
+obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o
+ifeq ($(CONFIG_ITCO_VENDOR_SUPPORT),y)
+obj-$(CONFIG_ITCO_WDT) += iTCO_vendor_support.o
+endif
+obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
+obj-$(CONFIG_IT87_WDT) += it87_wdt.o
+obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
+obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
+obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
+obj-$(CONFIG_PC87413_WDT) += pc87413_wdt.o
+obj-$(CONFIG_RDC321X_WDT) += rdc321x_wdt.o
+obj-$(CONFIG_60XX_WDT) += sbc60xxwdt.o
+obj-$(CONFIG_SBC8360_WDT) += sbc8360.o
+obj-$(CONFIG_SBC7240_WDT) += sbc7240_wdt.o
+obj-$(CONFIG_CPU5_WDT) += cpu5wdt.o
+obj-$(CONFIG_SMSC37B787_WDT) += smsc37b787_wdt.o
+obj-$(CONFIG_W83627HF_WDT) += w83627hf_wdt.o
+obj-$(CONFIG_W83697HF_WDT) += w83697hf_wdt.o
+obj-$(CONFIG_W83697UG_WDT) += w83697ug_wdt.o
+obj-$(CONFIG_W83877F_WDT) += w83877f_wdt.o
+obj-$(CONFIG_W83977F_WDT) += w83977f_wdt.o
+obj-$(CONFIG_MACHZ_WDT) += machzwd.o
+obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o
+
+# M32R Architecture
+
+# M68K Architecture
+
+# M68KNOMMU Architecture
+
+# MIPS Architecture
+obj-$(CONFIG_RC32434_WDT) += rc32434_wdt.o
+obj-$(CONFIG_INDYDOG) += indydog.o
+obj-$(CONFIG_WDT_MTX1) += mtx-1_wdt.o
+obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o
+obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
+obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
+obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+
+# PARISC Architecture
+
+# POWERPC Architecture
+obj-$(CONFIG_MPC5200_WDT) += mpc5200_wdt.o
+obj-$(CONFIG_8xxx_WDT) += mpc8xxx_wdt.o
+obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
+obj-$(CONFIG_BOOKE_WDT) += booke_wdt.o
+
+# PPC64 Architecture
+obj-$(CONFIG_WATCHDOG_RTAS) += wdrtas.o
+
+# S390 Architecture
+
+# SUPERH (sh + sh64) Architecture
+obj-$(CONFIG_SH_WDT) += shwdt.o
+
+# SPARC Architecture
+
+# SPARC64 Architecture
+
+obj-$(CONFIG_WATCHDOG_RIO)		+= riowd.o
+obj-$(CONFIG_WATCHDOG_CP1XXX)		+= cpwd.o
+
+# XTENSA Architecture
+
+# Architecture Independant
+obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c
new file mode 100644
index 0000000..3e57aa4
--- /dev/null
+++ b/drivers/watchdog/acquirewdt.c
@@ -0,0 +1,344 @@
+/*
+ *	Acquire Single Board Computer Watchdog Timer driver
+ *
+ *      Based on wdt.c. Original copyright messages:
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *      14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *          Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ *          Can't add timeout - driver doesn't allow changing value
+ */
+
+/*
+ *	Theory of Operation:
+ *		The Watch-Dog Timer is provided to ensure that standalone
+ *		Systems can always recover from catastrophic conditions that
+ *		caused the CPU to crash. This condition may have occured by
+ *		external EMI or a software bug. When the CPU stops working
+ *		correctly, hardware on the board will either perform a hardware
+ *		reset (cold boot) or a non-maskable interrupt (NMI) to bring the
+ *		system back to a known state.
+ *
+ *		The Watch-Dog Timer is controlled by two I/O Ports.
+ *		  443 hex	- Read	- Enable or refresh the Watch-Dog Timer
+ *		  043 hex	- Read	- Disable the Watch-Dog Timer
+ *
+ *		To enable the Watch-Dog Timer, a read from I/O port 443h must
+ *		be performed. This will enable and activate the countdown timer
+ *		which will eventually time out and either reset the CPU or cause
+ *		an NMI depending on the setting of a jumper. To ensure that this
+ *		reset condition does not occur, the Watch-Dog Timer must be
+ *		periodically refreshed by reading the same I/O port 443h.
+ *		The Watch-Dog Timer is disabled by reading I/O port 043h.
+ *
+ *		The Watch-Dog Timer Time-Out Period is set via jumpers.
+ *		It can be 1, 2, 10, 20, 110 or 220 seconds.
+ */
+
+/*
+ *	Includes, defines, variables, module parameters, ...
+ */
+
+/* Includes */
+#include <linux/module.h>		/* For module specific items */
+#include <linux/moduleparam.h>		/* For new moduleparam's */
+#include <linux/types.h>		/* For standard types (like size_t) */
+#include <linux/errno.h>		/* For the -ENODEV/... values */
+#include <linux/kernel.h>		/* For printk/panic/... */
+#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV
+							(WATCHDOG_MINOR) */
+#include <linux/watchdog.h>		/* For the watchdog specific items */
+#include <linux/fs.h>			/* For file operations */
+#include <linux/ioport.h>		/* For io-port access */
+#include <linux/platform_device.h>	/* For platform_driver framework */
+#include <linux/init.h>			/* For __init/__exit/... */
+#include <linux/uaccess.h>		/* For copy_to_user/put_user/... */
+#include <linux/io.h>			/* For inb/outb/... */
+
+/* Module information */
+#define DRV_NAME "acquirewdt"
+#define PFX DRV_NAME ": "
+#define WATCHDOG_NAME "Acquire WDT"
+/* There is no way to see what the correct time-out period is */
+#define WATCHDOG_HEARTBEAT 0
+
+/* internal variables */
+/* the watchdog platform device */
+static struct platform_device *acq_platform_device;
+static unsigned long acq_is_open;
+static char expect_close;
+
+/* module parameters */
+/* You must set this - there is no sane way to probe for this board. */
+static int wdt_stop = 0x43;
+module_param(wdt_stop, int, 0);
+MODULE_PARM_DESC(wdt_stop, "Acquire WDT 'stop' io port (default 0x43)");
+
+/* You must set this - there is no sane way to probe for this board. */
+static int wdt_start = 0x443;
+module_param(wdt_start, int, 0);
+MODULE_PARM_DESC(wdt_start, "Acquire WDT 'start' io port (default 0x443)");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+	__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Watchdog Operations
+ */
+
+static void acq_keepalive(void)
+{
+	/* Write a watchdog value */
+	inb_p(wdt_start);
+}
+
+static void acq_stop(void)
+{
+	/* Turn the card off */
+	inb_p(wdt_stop);
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static ssize_t acq_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+			/* note: just in case someone wrote the magic character
+			   five months ago... */
+			expect_close = 0;
+			/* scan to see whether or not we got the
+			   magic character */
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		/* Well, anyhow someone wrote to us, we should
+				return that favour */
+		acq_keepalive();
+	}
+	return count;
+}
+
+static long acq_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int options, retval = -EINVAL;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = WATCHDOG_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		if (get_user(options, p))
+			return -EFAULT;
+		if (options & WDIOS_DISABLECARD) {
+			acq_stop();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			acq_keepalive();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		acq_keepalive();
+		return 0;
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(WATCHDOG_HEARTBEAT, p);
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int acq_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &acq_is_open))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Activate */
+	acq_keepalive();
+	return nonseekable_open(inode, file);
+}
+
+static int acq_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		acq_stop();
+	} else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		acq_keepalive();
+	}
+	clear_bit(0, &acq_is_open);
+	expect_close = 0;
+	return 0;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations acq_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= acq_write,
+	.unlocked_ioctl	= acq_ioctl,
+	.open		= acq_open,
+	.release	= acq_close,
+};
+
+static struct miscdevice acq_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &acq_fops,
+};
+
+/*
+ *	Init & exit routines
+ */
+
+static int __devinit acq_probe(struct platform_device *dev)
+{
+	int ret;
+
+	if (wdt_stop != wdt_start) {
+		if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {
+			printk(KERN_ERR PFX
+			    "I/O address 0x%04x already in use\n", wdt_stop);
+			ret = -EIO;
+			goto out;
+		}
+	}
+
+	if (!request_region(wdt_start, 1, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			wdt_start);
+		ret = -EIO;
+		goto unreg_stop;
+	}
+	ret = misc_register(&acq_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto unreg_regions;
+	}
+	printk(KERN_INFO PFX "initialized. (nowayout=%d)\n", nowayout);
+
+	return 0;
+unreg_regions:
+	release_region(wdt_start, 1);
+unreg_stop:
+	if (wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+out:
+	return ret;
+}
+
+static int __devexit acq_remove(struct platform_device *dev)
+{
+	misc_deregister(&acq_miscdev);
+	release_region(wdt_start, 1);
+	if (wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+
+	return 0;
+}
+
+static void acq_shutdown(struct platform_device *dev)
+{
+	/* Turn the WDT off if we have a soft shutdown */
+	acq_stop();
+}
+
+static struct platform_driver acquirewdt_driver = {
+	.probe		= acq_probe,
+	.remove		= __devexit_p(acq_remove),
+	.shutdown	= acq_shutdown,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= DRV_NAME,
+	},
+};
+
+static int __init acq_init(void)
+{
+	int err;
+
+	printk(KERN_INFO
+	      "WDT driver for Acquire single board computer initialising.\n");
+
+	err = platform_driver_register(&acquirewdt_driver);
+	if (err)
+		return err;
+
+	acq_platform_device = platform_device_register_simple(DRV_NAME,
+								-1, NULL, 0);
+	if (IS_ERR(acq_platform_device)) {
+		err = PTR_ERR(acq_platform_device);
+		goto unreg_platform_driver;
+	}
+	return 0;
+
+unreg_platform_driver:
+	platform_driver_unregister(&acquirewdt_driver);
+	return err;
+}
+
+static void __exit acq_exit(void)
+{
+	platform_device_unregister(acq_platform_device);
+	platform_driver_unregister(&acquirewdt_driver);
+	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+}
+
+module_init(acq_init);
+module_exit(acq_exit);
+
+MODULE_AUTHOR("David Woodhouse");
+MODULE_DESCRIPTION("Acquire Inc. Single Board Computer Watchdog Timer driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c
new file mode 100644
index 0000000..a1d7856
--- /dev/null
+++ b/drivers/watchdog/advantechwdt.c
@@ -0,0 +1,352 @@
+/*
+ *	Advantech Single Board Computer WDT driver
+ *
+ *	(c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
+ *
+ *	Based on acquirewdt.c which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *	14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *	    Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ *
+ *	16-Oct-2002 Rob Radez <rob@osinvestor.com>
+ *	    Clean up ioctls, clean up init + exit, add expect close support,
+ *	    add wdt_start and wdt_stop as parameters.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define DRV_NAME "advantechwdt"
+#define PFX DRV_NAME ": "
+#define WATCHDOG_NAME "Advantech WDT"
+#define WATCHDOG_TIMEOUT 60		/* 60 sec default timeout */
+
+/* the watchdog platform device */
+static struct platform_device *advwdt_platform_device;
+static unsigned long advwdt_is_open;
+static char adv_expect_close;
+
+/*
+ *	You must set these - there is no sane way to probe for this board.
+ *
+ *	To enable or restart, write the timeout value in seconds (1 to 63)
+ *	to I/O port wdt_start.  To disable, read I/O port wdt_stop.
+ *	Both are 0x443 for most boards (tested on a PCA-6276VE-00B1), but
+ *	check your manual (at least the PCA-6159 seems to be different -
+ *	the manual says wdt_stop is 0x43, not 0x443).
+ *	(0x43 is also a write-only control register for the 8254 timer!)
+ */
+
+static int wdt_stop = 0x443;
+module_param(wdt_stop, int, 0);
+MODULE_PARM_DESC(wdt_stop, "Advantech WDT 'stop' io port (default 0x443)");
+
+static int wdt_start = 0x443;
+module_param(wdt_start, int, 0);
+MODULE_PARM_DESC(wdt_start, "Advantech WDT 'start' io port (default 0x443)");
+
+static int timeout = WATCHDOG_TIMEOUT;	/* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. 1<= timeout <=63, default="
+		__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+		__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Watchdog Operations
+ */
+
+static void advwdt_ping(void)
+{
+	/* Write a watchdog value */
+	outb_p(timeout, wdt_start);
+}
+
+static void advwdt_disable(void)
+{
+	inb_p(wdt_stop);
+}
+
+static int advwdt_set_heartbeat(int t)
+{
+	if (t < 1 || t > 63)
+		return -EINVAL;
+	timeout = t;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static ssize_t advwdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			adv_expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					adv_expect_close = 42;
+			}
+		}
+		advwdt_ping();
+	}
+	return count;
+}
+
+static long advwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int new_timeout;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = WATCHDOG_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+		if (options & WDIOS_DISABLECARD) {
+			advwdt_disable();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			advwdt_ping();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		advwdt_ping();
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (advwdt_set_heartbeat(new_timeout))
+			return -EINVAL;
+		advwdt_ping();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int advwdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &advwdt_is_open))
+		return -EBUSY;
+	/*
+	 *	Activate
+	 */
+
+	advwdt_ping();
+	return nonseekable_open(inode, file);
+}
+
+static int advwdt_close(struct inode *inode, struct file *file)
+{
+	if (adv_expect_close == 42) {
+		advwdt_disable();
+	} else {
+		printk(KERN_CRIT PFX
+				"Unexpected close, not stopping watchdog!\n");
+		advwdt_ping();
+	}
+	clear_bit(0, &advwdt_is_open);
+	adv_expect_close = 0;
+	return 0;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations advwdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= advwdt_write,
+	.unlocked_ioctl	= advwdt_ioctl,
+	.open		= advwdt_open,
+	.release	= advwdt_close,
+};
+
+static struct miscdevice advwdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &advwdt_fops,
+};
+
+/*
+ *	Init & exit routines
+ */
+
+static int __devinit advwdt_probe(struct platform_device *dev)
+{
+	int ret;
+
+	if (wdt_stop != wdt_start) {
+		if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {
+			printk(KERN_ERR PFX
+				"I/O address 0x%04x already in use\n",
+								wdt_stop);
+			ret = -EIO;
+			goto out;
+		}
+	}
+
+	if (!request_region(wdt_start, 1, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX
+				"I/O address 0x%04x already in use\n",
+								wdt_start);
+		ret = -EIO;
+		goto unreg_stop;
+	}
+
+	/* Check that the heartbeat value is within it's range ; if not reset to the default */
+	if (advwdt_set_heartbeat(timeout)) {
+		advwdt_set_heartbeat(WATCHDOG_TIMEOUT);
+		printk(KERN_INFO PFX
+			"timeout value must be 1<=x<=63, using %d\n", timeout);
+	}
+
+	ret = misc_register(&advwdt_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto unreg_regions;
+	}
+	printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+out:
+	return ret;
+unreg_regions:
+	release_region(wdt_start, 1);
+unreg_stop:
+	if (wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+	goto out;
+}
+
+static int __devexit advwdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&advwdt_miscdev);
+	release_region(wdt_start, 1);
+	if (wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+
+	return 0;
+}
+
+static void advwdt_shutdown(struct platform_device *dev)
+{
+	/* Turn the WDT off if we have a soft shutdown */
+	advwdt_disable();
+}
+
+static struct platform_driver advwdt_driver = {
+	.probe		= advwdt_probe,
+	.remove		= __devexit_p(advwdt_remove),
+	.shutdown	= advwdt_shutdown,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= DRV_NAME,
+	},
+};
+
+static int __init advwdt_init(void)
+{
+	int err;
+
+	printk(KERN_INFO
+	     "WDT driver for Advantech single board computer initialising.\n");
+
+	err = platform_driver_register(&advwdt_driver);
+	if (err)
+		return err;
+
+	advwdt_platform_device = platform_device_register_simple(DRV_NAME,
+								-1, NULL, 0);
+	if (IS_ERR(advwdt_platform_device)) {
+		err = PTR_ERR(advwdt_platform_device);
+		goto unreg_platform_driver;
+	}
+
+	return 0;
+
+unreg_platform_driver:
+	platform_driver_unregister(&advwdt_driver);
+	return err;
+}
+
+static void __exit advwdt_exit(void)
+{
+	platform_device_unregister(advwdt_platform_device);
+	platform_driver_unregister(&advwdt_driver);
+	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+}
+
+module_init(advwdt_init);
+module_exit(advwdt_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marek Michalkiewicz <marekm@linux.org.pl>");
+MODULE_DESCRIPTION("Advantech Single Board Computer WDT driver");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c
new file mode 100644
index 0000000..2a7690e
--- /dev/null
+++ b/drivers/watchdog/alim1535_wdt.c
@@ -0,0 +1,458 @@
+/*
+ *	Watchdog for the 7101 PMU version found in the ALi M1535 chipsets
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/pci.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#define WATCHDOG_NAME "ALi_M1535"
+#define PFX WATCHDOG_NAME ": "
+#define WATCHDOG_TIMEOUT 60	/* 60 sec default timeout */
+
+/* internal variables */
+static unsigned long ali_is_open;
+static char ali_expect_release;
+static struct pci_dev *ali_pci;
+static u32 ali_timeout_bits;		/* stores the computed timeout */
+static DEFINE_SPINLOCK(ali_lock);	/* Guards the hardware */
+
+/* module parameters */
+static int timeout = WATCHDOG_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Watchdog timeout in seconds. (0 < timeout < 18000, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	ali_start	-	start watchdog countdown
+ *
+ *	Starts the timer running providing the timer has a counter
+ *	configuration set.
+ */
+
+static void ali_start(void)
+{
+	u32 val;
+
+	spin_lock(&ali_lock);
+
+	pci_read_config_dword(ali_pci, 0xCC, &val);
+	val &= ~0x3F;	/* Mask count */
+	val |= (1<<25) | ali_timeout_bits;
+	pci_write_config_dword(ali_pci, 0xCC, val);
+
+	spin_unlock(&ali_lock);
+}
+
+/*
+ *	ali_stop	-	stop the timer countdown
+ *
+ *	Stop the ALi watchdog countdown
+ */
+
+static void ali_stop(void)
+{
+	u32 val;
+
+	spin_lock(&ali_lock);
+
+	pci_read_config_dword(ali_pci, 0xCC, &val);
+	val &= ~0x3F;	/* Mask count to zero (disabled) */
+	val &= ~(1<<25);/* and for safety mask the reset enable */
+	pci_write_config_dword(ali_pci, 0xCC, val);
+
+	spin_unlock(&ali_lock);
+}
+
+/*
+ *	ali_keepalive	-	send a keepalive to the watchdog
+ *
+ *      Send a keepalive to the timer (actually we restart the timer).
+ */
+
+static void ali_keepalive(void)
+{
+	ali_start();
+}
+
+/*
+ *	ali_settimer	-	compute the timer reload value
+ *	@t: time in seconds
+ *
+ *	Computes the timeout values needed
+ */
+
+static int ali_settimer(int t)
+{
+	if (t < 0)
+		return -EINVAL;
+	else if (t < 60)
+		ali_timeout_bits = t|(1<<6);
+	else if (t < 3600)
+		ali_timeout_bits = (t/60)|(1<<7);
+	else if (t < 18000)
+		ali_timeout_bits = (t/300)|(1<<6)|(1<<7);
+	else
+		return -EINVAL;
+
+	timeout = t;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+/*
+ *	ali_write	-	writes to ALi watchdog
+ *	@file: file from VFS
+ *	@data: user address of data
+ *	@len: length of data
+ *	@ppos: pointer to the file offset
+ *
+ *	Handle a write to the ALi watchdog. Writing to the file pings
+ *	the watchdog and resets it. Writing the magic 'V' sequence allows
+ *	the next close to turn off the watchdog.
+ */
+
+static ssize_t ali_write(struct file *file, const char __user *data,
+			      size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* note: just in case someone wrote the
+			   magic character five months ago... */
+			ali_expect_release = 0;
+
+			/* scan to see whether or not we got
+			   the magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					ali_expect_release = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		ali_start();
+	}
+	return len;
+}
+
+/*
+ *	ali_ioctl	-	handle watchdog ioctls
+ *	@file: VFS file pointer
+ *	@cmd: ioctl number
+ *	@arg: arguments to the ioctl
+ *
+ *	Handle the watchdog ioctls supported by the ALi driver. Really
+ *	we want an extension to enable irq ack monitoring and the like
+ */
+
+static long ali_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_KEEPALIVEPING |
+					WDIOF_SETTIMEOUT |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	0,
+		.identity =		"ALi M1535 WatchDog Timer",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+
+		if (get_user(new_options, p))
+			return -EFAULT;
+		if (new_options & WDIOS_DISABLECARD) {
+			ali_stop();
+			retval = 0;
+		}
+		if (new_options & WDIOS_ENABLECARD) {
+			ali_start();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		ali_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_timeout;
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (ali_settimer(new_timeout))
+			return -EINVAL;
+		ali_keepalive();
+		/* Fall */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/*
+ *	ali_open	-	handle open of ali watchdog
+ *	@inode: inode from VFS
+ *	@file: file from VFS
+ *
+ *	Open the ALi watchdog device. Ensure only one person opens it
+ *	at a time. Also start the watchdog running.
+ */
+
+static int ali_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &ali_is_open))
+		return -EBUSY;
+
+	/* Activate */
+	ali_start();
+	return nonseekable_open(inode, file);
+}
+
+/*
+ *	ali_release	-	close an ALi watchdog
+ *	@inode: inode from VFS
+ *	@file: file from VFS
+ *
+ *	Close the ALi watchdog device. Actual shutdown of the timer
+ *	only occurs if the magic sequence has been set.
+ */
+
+static int ali_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *      Shut off the timer.
+	 */
+	if (ali_expect_release == 42)
+		ali_stop();
+	else {
+		printk(KERN_CRIT PFX
+				"Unexpected close, not stopping watchdog!\n");
+		ali_keepalive();
+	}
+	clear_bit(0, &ali_is_open);
+	ali_expect_release = 0;
+	return 0;
+}
+
+/*
+ *	ali_notify_sys	-	System down notifier
+ *
+ *	Notifier for system down
+ */
+
+
+static int ali_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		ali_stop();		/* Turn the WDT off */
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Data for PCI driver interface
+ *
+ *	This data only exists for exporting the supported
+ *	PCI ids via MODULE_DEVICE_TABLE.  We do not actually
+ *	register a pci_driver, because someone else might one day
+ *	want to register another driver on the same PCI id.
+ */
+
+static struct pci_device_id ali_pci_tbl[] = {
+	{ PCI_VENDOR_ID_AL, 0x1533, PCI_ANY_ID, PCI_ANY_ID,},
+	{ PCI_VENDOR_ID_AL, 0x1535, PCI_ANY_ID, PCI_ANY_ID,},
+	{ 0, },
+};
+MODULE_DEVICE_TABLE(pci, ali_pci_tbl);
+
+/*
+ *	ali_find_watchdog	-	find a 1535 and 7101
+ *
+ *	Scans the PCI hardware for a 1535 series bridge and matching 7101
+ *	watchdog device. This may be overtight but it is better to be safe
+ */
+
+static int __init ali_find_watchdog(void)
+{
+	struct pci_dev *pdev;
+	u32 wdog;
+
+	/* Check for a 1533/1535 series bridge */
+	pdev = pci_get_device(PCI_VENDOR_ID_AL, 0x1535, NULL);
+	if (pdev == NULL)
+		pdev = pci_get_device(PCI_VENDOR_ID_AL, 0x1533, NULL);
+	if (pdev == NULL)
+		return -ENODEV;
+	pci_dev_put(pdev);
+
+	/* Check for the a 7101 PMU */
+	pdev = pci_get_device(PCI_VENDOR_ID_AL, 0x7101, NULL);
+	if (pdev == NULL)
+		return -ENODEV;
+
+	if (pci_enable_device(pdev)) {
+		pci_dev_put(pdev);
+		return -EIO;
+	}
+
+	ali_pci = pdev;
+
+	/*
+	 *	Initialize the timer bits
+	 */
+	pci_read_config_dword(pdev, 0xCC, &wdog);
+
+	/* Timer bits */
+	wdog &= ~0x3F;
+	/* Issued events */
+	wdog &= ~((1<<27)|(1<<26)|(1<<25)|(1<<24));
+	/* No monitor bits */
+	wdog &= ~((1<<16)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9));
+
+	pci_write_config_dword(pdev, 0xCC, wdog);
+
+	return 0;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations ali_fops = {
+	.owner 		=	THIS_MODULE,
+	.llseek 	=	no_llseek,
+	.write		=	ali_write,
+	.unlocked_ioctl =	ali_ioctl,
+	.open 		=	ali_open,
+	.release 	=	ali_release,
+};
+
+static struct miscdevice ali_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&ali_fops,
+};
+
+static struct notifier_block ali_notifier = {
+	.notifier_call =	ali_notify_sys,
+};
+
+/*
+ *	watchdog_init	-	module initialiser
+ *
+ *	Scan for a suitable watchdog and if so initialize it. Return an error
+ *	if we cannot, the error causes the module to unload
+ */
+
+static int __init watchdog_init(void)
+{
+	int ret;
+
+	/* Check whether or not the hardware watchdog is there */
+	if (ali_find_watchdog() != 0)
+		return -ENODEV;
+
+	/* Check that the timeout value is within it's range;
+	   if not reset to the default */
+	if (timeout < 1 || timeout >= 18000) {
+		timeout = WATCHDOG_TIMEOUT;
+		printk(KERN_INFO PFX
+		     "timeout value must be 0 < timeout < 18000, using %d\n",
+							timeout);
+	}
+
+	/* Calculate the watchdog's timeout */
+	ali_settimer(timeout);
+
+	ret = register_reboot_notifier(&ali_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto out;
+	}
+
+	ret = misc_register(&ali_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						WATCHDOG_MINOR, ret);
+		goto unreg_reboot;
+	}
+
+	printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+
+out:
+	return ret;
+unreg_reboot:
+	unregister_reboot_notifier(&ali_notifier);
+	goto out;
+}
+
+/*
+ *	watchdog_exit	-	module de-initialiser
+ *
+ *	Called while unloading a successfully installed watchdog module.
+ */
+
+static void __exit watchdog_exit(void)
+{
+	/* Stop the timer before we leave */
+	ali_stop();
+
+	/* Deregister */
+	misc_deregister(&ali_miscdev);
+	unregister_reboot_notifier(&ali_notifier);
+	pci_dev_put(ali_pci);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("ALi M1535 PMU Watchdog Timer driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
new file mode 100644
index 0000000..a045ef8
--- /dev/null
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -0,0 +1,435 @@
+/*
+ *	ALi M7101 PMU Computer Watchdog Timer driver
+ *
+ *	Based on w83877f_wdt.c by Scott Jennings <linuxdrivers@oro.net>
+ *	and the Cobalt kernel WDT timer driver by Tim Hockin
+ *	                                      <thockin@cobaltnet.com>
+ *
+ *	(c)2002 Steve Hill <steve@navaho.co.uk>
+ *
+ *  This WDT driver is different from most other Linux WDT
+ *  drivers in that the driver will ping the watchdog by itself,
+ *  because this particular WDT has a very short timeout (1.6
+ *  seconds) and it would be insane to count on any userspace
+ *  daemon always getting scheduled within that time frame.
+ *
+ *  Additions:
+ *   Aug 23, 2004 - Added use_gpio module parameter for use on revision a1d PMUs
+ *                  found on very old cobalt hardware.
+ *                  -- Mike Waychison <michael.waychison@sun.com>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define OUR_NAME "alim7101_wdt"
+#define PFX OUR_NAME ": "
+
+#define WDT_ENABLE 0x9C
+#define WDT_DISABLE 0x8C
+
+#define ALI_7101_WDT    0x92
+#define ALI_7101_GPIO   0x7D
+#define ALI_7101_GPIO_O 0x7E
+#define ALI_WDT_ARM     0x01
+
+/*
+ * We're going to use a 1 second timeout.
+ * If we reset the watchdog every ~250ms we should be safe.  */
+
+#define WDT_INTERVAL (HZ/4+1)
+
+/*
+ * We must not require too good response from the userspace daemon.
+ * Here we require the userspace daemon to send us a heartbeat
+ * char to /dev/watchdog every 30 seconds.
+ */
+
+#define WATCHDOG_TIMEOUT 30            /* 30 sec default timeout */
+/* in seconds, will be multiplied by HZ to get seconds to wait for a ping */
+static int timeout = WATCHDOG_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Watchdog timeout in seconds. (1<=timeout<=3600, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int use_gpio; /* Use the pic (for a1d revision alim7101) */
+module_param(use_gpio, int, 0);
+MODULE_PARM_DESC(use_gpio,
+		"Use the gpio watchdog (required by old cobalt boards).");
+
+static void wdt_timer_ping(unsigned long);
+static DEFINE_TIMER(timer, wdt_timer_ping, 0, 1);
+static unsigned long next_heartbeat;
+static unsigned long wdt_is_open;
+static char wdt_expect_close;
+static struct pci_dev *alim7101_pmu;
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Whack the dog
+ */
+
+static void wdt_timer_ping(unsigned long data)
+{
+	/* If we got a heartbeat pulse within the WDT_US_INTERVAL
+	 * we agree to ping the WDT
+	 */
+	char tmp;
+
+	if (time_before(jiffies, next_heartbeat)) {
+		/* Ping the WDT (this is actually a disarm/arm sequence) */
+		pci_read_config_byte(alim7101_pmu, 0x92, &tmp);
+		pci_write_config_byte(alim7101_pmu,
+					ALI_7101_WDT, (tmp & ~ALI_WDT_ARM));
+		pci_write_config_byte(alim7101_pmu,
+					ALI_7101_WDT, (tmp | ALI_WDT_ARM));
+		if (use_gpio) {
+			pci_read_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, &tmp);
+			pci_write_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, tmp | 0x20);
+			pci_write_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, tmp & ~0x20);
+		}
+	} else {
+		printk(KERN_WARNING PFX
+			"Heartbeat lost! Will not ping the watchdog\n");
+	}
+	/* Re-set the timer interval */
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+}
+
+/*
+ * Utility routines
+ */
+
+static void wdt_change(int writeval)
+{
+	char tmp;
+
+	pci_read_config_byte(alim7101_pmu, ALI_7101_WDT, &tmp);
+	if (writeval == WDT_ENABLE) {
+		pci_write_config_byte(alim7101_pmu,
+					ALI_7101_WDT, (tmp | ALI_WDT_ARM));
+		if (use_gpio) {
+			pci_read_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, &tmp);
+			pci_write_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, tmp & ~0x20);
+		}
+
+	} else {
+		pci_write_config_byte(alim7101_pmu,
+					ALI_7101_WDT, (tmp & ~ALI_WDT_ARM));
+		if (use_gpio) {
+			pci_read_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, &tmp);
+			pci_write_config_byte(alim7101_pmu,
+					ALI_7101_GPIO_O, tmp | 0x20);
+		}
+	}
+}
+
+static void wdt_startup(void)
+{
+	next_heartbeat = jiffies + (timeout * HZ);
+
+	/* We must enable before we kick off the timer in case the timer
+	   occurs as we ping it */
+
+	wdt_change(WDT_ENABLE);
+
+	/* Start the timer */
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+
+	printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+}
+
+static void wdt_turnoff(void)
+{
+	/* Stop the timer */
+	del_timer_sync(&timer);
+	wdt_change(WDT_DISABLE);
+	printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+}
+
+static void wdt_keepalive(void)
+{
+	/* user land ping */
+	next_heartbeat = jiffies + (timeout * HZ);
+}
+
+/*
+ * /dev/watchdog handling
+ */
+
+static ssize_t fop_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t ofs;
+
+			/* note: just in case someone wrote the magic character
+			 * five months ago... */
+			wdt_expect_close = 0;
+
+			/* now scan */
+			for (ofs = 0; ofs != count; ofs++) {
+				char c;
+				if (get_user(c, buf + ofs))
+					return -EFAULT;
+				if (c == 'V')
+					wdt_expect_close = 42;
+			}
+		}
+		/* someone wrote to us, we should restart timer */
+		wdt_keepalive();
+	}
+	return count;
+}
+
+static int fop_open(struct inode *inode, struct file *file)
+{
+	/* Just in case we're already talking to someone... */
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	/* Good, fire up the show */
+	wdt_startup();
+	return nonseekable_open(inode, file);
+}
+
+static int fop_close(struct inode *inode, struct file *file)
+{
+	if (wdt_expect_close == 42)
+		wdt_turnoff();
+	else {
+		/* wim: shouldn't there be a: del_timer(&timer); */
+		printk(KERN_CRIT PFX
+		  "device file closed unexpectedly. Will not stop the WDT!\n");
+	}
+	clear_bit(0, &wdt_is_open);
+	wdt_expect_close = 0;
+	return 0;
+}
+
+static long fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+							| WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "ALiM7101",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+
+		if (get_user(new_options, p))
+			return -EFAULT;
+		if (new_options & WDIOS_DISABLECARD) {
+			wdt_turnoff();
+			retval = 0;
+		}
+		if (new_options & WDIOS_ENABLECARD) {
+			wdt_startup();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_timeout;
+
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		/* arbitrary upper limit */
+		if (new_timeout < 1 || new_timeout > 3600)
+			return -EINVAL;
+		timeout = new_timeout;
+		wdt_keepalive();
+		/* Fall through */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations wdt_fops = {
+	.owner		=	THIS_MODULE,
+	.llseek		=	no_llseek,
+	.write		=	fop_write,
+	.open		=	fop_open,
+	.release	=	fop_close,
+	.unlocked_ioctl	=	fop_ioctl,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor	=	WATCHDOG_MINOR,
+	.name	=	"watchdog",
+	.fops	=	&wdt_fops,
+};
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_turnoff();
+
+	if (code == SYS_RESTART) {
+		/*
+		 * Cobalt devices have no way of rebooting themselves other
+		 * than getting the watchdog to pull reset, so we restart the
+		 * watchdog on reboot with no heartbeat
+		 */
+		wdt_change(WDT_ENABLE);
+		printk(KERN_INFO PFX "Watchdog timer is now enabled with no heartbeat - should reboot in ~1 second.\n");
+	}
+	return NOTIFY_DONE;
+}
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static void __exit alim7101_wdt_unload(void)
+{
+	wdt_turnoff();
+	/* Deregister */
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	pci_dev_put(alim7101_pmu);
+}
+
+static int __init alim7101_wdt_init(void)
+{
+	int rc = -EBUSY;
+	struct pci_dev *ali1543_south;
+	char tmp;
+
+	printk(KERN_INFO PFX "Steve Hill <steve@navaho.co.uk>.\n");
+	alim7101_pmu = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
+		NULL);
+	if (!alim7101_pmu) {
+		printk(KERN_INFO PFX "ALi M7101 PMU not present - WDT not set\n");
+		return -EBUSY;
+	}
+
+	/* Set the WDT in the PMU to 1 second */
+	pci_write_config_byte(alim7101_pmu, ALI_7101_WDT, 0x02);
+
+	ali1543_south = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
+		NULL);
+	if (!ali1543_south) {
+		printk(KERN_INFO PFX
+			"ALi 1543 South-Bridge not present - WDT not set\n");
+		goto err_out;
+	}
+	pci_read_config_byte(ali1543_south, 0x5e, &tmp);
+	pci_dev_put(ali1543_south);
+	if ((tmp & 0x1e) == 0x00) {
+		if (!use_gpio) {
+			printk(KERN_INFO PFX "Detected old alim7101 revision 'a1d'.  If this is a cobalt board, set the 'use_gpio' module parameter.\n");
+			goto err_out;
+		}
+		nowayout = 1;
+	} else if ((tmp & 0x1e) != 0x12 && (tmp & 0x1e) != 0x00) {
+		printk(KERN_INFO PFX "ALi 1543 South-Bridge does not have the correct revision number (???1001?) - WDT not set\n");
+		goto err_out;
+	}
+
+	if (timeout < 1 || timeout > 3600) {
+		/* arbitrary upper limit */
+		timeout = WATCHDOG_TIMEOUT;
+		printk(KERN_INFO PFX
+			"timeout value must be 1 <= x <= 3600, using %d\n",
+								timeout);
+	}
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+			wdt_miscdev.minor, rc);
+		goto err_out_reboot;
+	}
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	printk(KERN_INFO PFX "WDT driver for ALi M7101 initialised. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+	return 0;
+
+err_out_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out:
+	pci_dev_put(alim7101_pmu);
+	return rc;
+}
+
+module_init(alim7101_wdt_init);
+module_exit(alim7101_wdt_unload);
+
+static struct pci_device_id alim7101_pci_tbl[] __devinitdata = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(pci, alim7101_pci_tbl);
+
+MODULE_AUTHOR("Steve Hill");
+MODULE_DESCRIPTION("ALi M7101 PMU Computer Watchdog Timer driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
new file mode 100644
index 0000000..55dcbfe
--- /dev/null
+++ b/drivers/watchdog/ar7_wdt.c
@@ -0,0 +1,354 @@
+/*
+ * drivers/watchdog/ar7_wdt.c
+ *
+ * Copyright (C) 2007 Nicolas Thill <nico@openwrt.org>
+ * Copyright (c) 2005 Enrik Berkhan <Enrik.Berkhan@akk.org>
+ *
+ * Some code taken from:
+ * National Semiconductor SCx200 Watchdog support
+ * Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/addrspace.h>
+#include <asm/ar7/ar7.h>
+
+#define DRVNAME "ar7_wdt"
+#define LONGNAME "TI AR7 Watchdog Timer"
+
+MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>");
+MODULE_DESCRIPTION(LONGNAME);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+static int margin = 60;
+module_param(margin, int, 0);
+MODULE_PARM_DESC(margin, "Watchdog margin in seconds");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
+
+#define READ_REG(x) readl((void __iomem *)&(x))
+#define WRITE_REG(x, v) writel((v), (void __iomem *)&(x))
+
+struct ar7_wdt {
+	u32 kick_lock;
+	u32 kick;
+	u32 change_lock;
+	u32 change;
+	u32 disable_lock;
+	u32 disable;
+	u32 prescale_lock;
+	u32 prescale;
+};
+
+static unsigned long wdt_is_open;
+static spinlock_t wdt_lock;
+static unsigned expect_close;
+
+/* XXX currently fixed, allows max margin ~68.72 secs */
+#define prescale_value 0xffff
+
+/* Offset of the WDT registers */
+static unsigned long ar7_regs_wdt;
+/* Pointer to the remapped WDT IO space */
+static struct ar7_wdt *ar7_wdt;
+static void ar7_wdt_get_regs(void)
+{
+	u16 chip_id = ar7_chip_id();
+	switch (chip_id) {
+	case AR7_CHIP_7100:
+	case AR7_CHIP_7200:
+		ar7_regs_wdt = AR7_REGS_WDT;
+		break;
+	default:
+		ar7_regs_wdt = UR8_REGS_WDT;
+		break;
+	}
+}
+
+
+static void ar7_wdt_kick(u32 value)
+{
+	WRITE_REG(ar7_wdt->kick_lock, 0x5555);
+	if ((READ_REG(ar7_wdt->kick_lock) & 3) == 1) {
+		WRITE_REG(ar7_wdt->kick_lock, 0xaaaa);
+		if ((READ_REG(ar7_wdt->kick_lock) & 3) == 3) {
+			WRITE_REG(ar7_wdt->kick, value);
+			return;
+		}
+	}
+	printk(KERN_ERR DRVNAME ": failed to unlock WDT kick reg\n");
+}
+
+static void ar7_wdt_prescale(u32 value)
+{
+	WRITE_REG(ar7_wdt->prescale_lock, 0x5a5a);
+	if ((READ_REG(ar7_wdt->prescale_lock) & 3) == 1) {
+		WRITE_REG(ar7_wdt->prescale_lock, 0xa5a5);
+		if ((READ_REG(ar7_wdt->prescale_lock) & 3) == 3) {
+			WRITE_REG(ar7_wdt->prescale, value);
+			return;
+		}
+	}
+	printk(KERN_ERR DRVNAME ": failed to unlock WDT prescale reg\n");
+}
+
+static void ar7_wdt_change(u32 value)
+{
+	WRITE_REG(ar7_wdt->change_lock, 0x6666);
+	if ((READ_REG(ar7_wdt->change_lock) & 3) == 1) {
+		WRITE_REG(ar7_wdt->change_lock, 0xbbbb);
+		if ((READ_REG(ar7_wdt->change_lock) & 3) == 3) {
+			WRITE_REG(ar7_wdt->change, value);
+			return;
+		}
+	}
+	printk(KERN_ERR DRVNAME ": failed to unlock WDT change reg\n");
+}
+
+static void ar7_wdt_disable(u32 value)
+{
+	WRITE_REG(ar7_wdt->disable_lock, 0x7777);
+	if ((READ_REG(ar7_wdt->disable_lock) & 3) == 1) {
+		WRITE_REG(ar7_wdt->disable_lock, 0xcccc);
+		if ((READ_REG(ar7_wdt->disable_lock) & 3) == 2) {
+			WRITE_REG(ar7_wdt->disable_lock, 0xdddd);
+			if ((READ_REG(ar7_wdt->disable_lock) & 3) == 3) {
+				WRITE_REG(ar7_wdt->disable, value);
+				return;
+			}
+		}
+	}
+	printk(KERN_ERR DRVNAME ": failed to unlock WDT disable reg\n");
+}
+
+static void ar7_wdt_update_margin(int new_margin)
+{
+	u32 change;
+
+	change = new_margin * (ar7_vbus_freq() / prescale_value);
+	if (change < 1)
+		change = 1;
+	if (change > 0xffff)
+		change = 0xffff;
+	ar7_wdt_change(change);
+	margin = change * prescale_value / ar7_vbus_freq();
+	printk(KERN_INFO DRVNAME
+	       ": timer margin %d seconds (prescale %d, change %d, freq %d)\n",
+	       margin, prescale_value, change, ar7_vbus_freq());
+}
+
+static void ar7_wdt_enable_wdt(void)
+{
+	printk(KERN_DEBUG DRVNAME ": enabling watchdog timer\n");
+	ar7_wdt_disable(1);
+	ar7_wdt_kick(1);
+}
+
+static void ar7_wdt_disable_wdt(void)
+{
+	printk(KERN_DEBUG DRVNAME ": disabling watchdog timer\n");
+	ar7_wdt_disable(0);
+}
+
+static int ar7_wdt_open(struct inode *inode, struct file *file)
+{
+	/* only allow one at a time */
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	ar7_wdt_enable_wdt();
+	expect_close = 0;
+
+	return nonseekable_open(inode, file);
+}
+
+static int ar7_wdt_release(struct inode *inode, struct file *file)
+{
+	if (!expect_close)
+		printk(KERN_WARNING DRVNAME
+		": watchdog device closed unexpectedly,"
+		"will not disable the watchdog timer\n");
+	else if (!nowayout)
+		ar7_wdt_disable_wdt();
+	clear_bit(0, &wdt_is_open);
+	return 0;
+}
+
+static int ar7_wdt_notify_sys(struct notifier_block *this,
+			      unsigned long code, void *unused)
+{
+	if (code == SYS_HALT || code == SYS_POWER_OFF)
+		if (!nowayout)
+			ar7_wdt_disable_wdt();
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block ar7_wdt_notifier = {
+	.notifier_call = ar7_wdt_notify_sys,
+};
+
+static ssize_t ar7_wdt_write(struct file *file, const char *data,
+			     size_t len, loff_t *ppos)
+{
+	/* check for a magic close character */
+	if (len) {
+		size_t i;
+
+		spin_lock(&wdt_lock);
+		ar7_wdt_kick(1);
+		spin_unlock(&wdt_lock);
+
+		expect_close = 0;
+		for (i = 0; i < len; ++i) {
+			char c;
+			if (get_user(c, data + i))
+				return -EFAULT;
+			if (c == 'V')
+				expect_close = 1;
+		}
+
+	}
+	return len;
+}
+
+static long ar7_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	static struct watchdog_info ident = {
+		.identity = LONGNAME,
+		.firmware_version = 1,
+		.options = (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING),
+	};
+	int new_margin;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user((struct watchdog_info *)arg, &ident,
+				sizeof(ident)))
+			return -EFAULT;
+		return 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		if (put_user(0, (int *)arg))
+			return -EFAULT;
+		return 0;
+	case WDIOC_KEEPALIVE:
+		ar7_wdt_kick(1);
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, (int *)arg))
+			return -EFAULT;
+		if (new_margin < 1)
+			return -EINVAL;
+
+		spin_lock(&wdt_lock);
+		ar7_wdt_update_margin(new_margin);
+		ar7_wdt_kick(1);
+		spin_unlock(&wdt_lock);
+
+	case WDIOC_GETTIMEOUT:
+		if (put_user(margin, (int *)arg))
+			return -EFAULT;
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations ar7_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.write		= ar7_wdt_write,
+	.unlocked_ioctl	= ar7_wdt_ioctl,
+	.open		= ar7_wdt_open,
+	.release	= ar7_wdt_release,
+};
+
+static struct miscdevice ar7_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &ar7_wdt_fops,
+};
+
+static int __init ar7_wdt_init(void)
+{
+	int rc;
+
+	spin_lock_init(&wdt_lock);
+
+	ar7_wdt_get_regs();
+
+	if (!request_mem_region(ar7_regs_wdt, sizeof(struct ar7_wdt),
+							LONGNAME)) {
+		printk(KERN_WARNING DRVNAME ": watchdog I/O region busy\n");
+		return -EBUSY;
+	}
+
+	ar7_wdt = (struct ar7_wdt *)
+			ioremap(ar7_regs_wdt, sizeof(struct ar7_wdt));
+
+	ar7_wdt_disable_wdt();
+	ar7_wdt_prescale(prescale_value);
+	ar7_wdt_update_margin(margin);
+
+	rc = register_reboot_notifier(&ar7_wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR DRVNAME
+			": unable to register reboot notifier\n");
+		goto out_alloc;
+	}
+
+	rc = misc_register(&ar7_wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR DRVNAME ": unable to register misc device\n");
+		goto out_register;
+	}
+	goto out;
+
+out_register:
+	unregister_reboot_notifier(&ar7_wdt_notifier);
+out_alloc:
+	iounmap(ar7_wdt);
+	release_mem_region(ar7_regs_wdt, sizeof(struct ar7_wdt));
+out:
+	return rc;
+}
+
+static void __exit ar7_wdt_cleanup(void)
+{
+	misc_deregister(&ar7_wdt_miscdev);
+	unregister_reboot_notifier(&ar7_wdt_notifier);
+	iounmap(ar7_wdt);
+	release_mem_region(ar7_regs_wdt, sizeof(struct ar7_wdt));
+}
+
+module_init(ar7_wdt_init);
+module_exit(ar7_wdt_cleanup);
diff --git a/drivers/watchdog/ast_wdt.c b/drivers/watchdog/ast_wdt.c
new file mode 100644
index 0000000..cfe70a1
--- /dev/null
+++ b/drivers/watchdog/ast_wdt.c
@@ -0,0 +1,639 @@
+/********************************************************************************
+* File Name     : ast_wdt
+* 
+* Copyright (C) 2012-2020  ASPEED Technology Inc.
+* This program is free software; you can redistribute it and/or modify 
+* it under the terms of the GNU General Public License as published by the Free Software Foundation; 
+* either version 2 of the License, or (at your option) any later version. 
+* This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; 
+* without even the implied warranty of MERCHANTABILITY or 
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 
+* You should have received a copy of the GNU General Public License 
+* along with this program; if not, write to the Free Software 
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
+********************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/semaphore.h>
+#include <asm/uaccess.h>
+
+#include <linux/platform_device.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_COLDFIRE
+#include <asm/arch/irqs.h>
+#include <asm/arch/ast_wdt.h>
+#include <asm/arch/platform.h>
+#else
+#include <mach/irqs.h>
+#include <mach/ast_wdt.h>
+#include <mach/platform.h>
+#endif
+
+#define TICKS_PER_uSEC                  1 
+
+
+typedef unsigned char bool_T;
+
+#ifdef TRUE
+#undef TRUE
+#endif
+
+#ifdef FALSE
+#undef FALSE
+#endif
+
+#define TRUE	1
+#define FALSE	0
+
+#if defined(CONFIG_COLDFIRE)
+#define WDT_BASE_VA		AST_WDT_BASE
+
+#else
+#define WDT_BASE_VA		(IO_ADDRESS(AST_WDT_BASE))
+#define WDT2_BASE_VA		(IO_ADDRESS(AST_WDT_BASE + 20))
+#endif
+
+#define WDT_CntSts              (WDT_BASE_VA+0x00)
+#define WDT_Reload              (WDT_BASE_VA+0x04)
+#define WDT_Restart             (WDT_BASE_VA+0x08)
+#define WDT_Ctrl                (WDT_BASE_VA+0x0C)
+#define WDT_TimeOut             (WDT_BASE_VA+0x10)
+#define WDT_Clr                 (WDT_BASE_VA+0x14)
+#define WDT_RstWd               (WDT_BASE_VA+0x18)
+
+#define WDT2_CntSts             (WDT2_BASE_VA+0x00)
+#define WDT2_Reload             (WDT2_BASE_VA+0x04)
+#define WDT2_Restart            (WDT2_BASE_VA+0x08)
+#define WDT2_Ctrl               (WDT2_BASE_VA+0x0C)
+#define WDT2_TimeOut            (WDT2_BASE_VA+0x10)
+#define WDT2_Clr                (WDT2_BASE_VA+0x14)
+#define WDT2_RstWd              (WDT2_BASE_VA+0x18)
+
+#define WDT_CTRL_B_SECOND_BOOT  (0x1 << 7)
+#define WDT_CTRL_B_RESET_SOC (0x00 << 5) /* yes, 0x00 */
+#define WDT_CTRL_B_RESET_FULL (0x01 << 5)
+#define WDT_CTRL_B_RESET_ARM (0x2 << 5)
+#define WDT_CTRL_B_RESET_MASK (0x3 << 5)
+#define WDT_CTRL_B_1MCLK (0x1 << 4)
+#define WDT_CTRL_B_EXT  (0x1 << 3)
+#define WDT_CTRL_B_INTR  (0x1 << 2)
+#define WDT_CTRL_B_CLEAR_AFTER  (0x1 << 1)
+#define WDT_CTRL_B_ENABLE  (0x1 << 0)
+
+
+#define AST_READ_REG(r)		(*((volatile unsigned int *) (r)))
+#define AST_WRITE_REG(r,v)		(*((volatile unsigned int *) (r)) = ((unsigned int)   (v)))
+
+
+#define WDT_CLK_SRC_EXT		0
+#define WDT_CLK_SRC_PCLK	1
+
+//Global Variables
+#define WDT_TIMO 30			/* Default heartbeat = 30 seconds */
+
+#define WDT_INITIAL_TIMO (8*60) /* Initial timeout, 8m */
+/*
+ * Dual boot watchdog is 5s shorter so that dual boot watchdog
+ * will kick in first.
+ */
+#define WDT_DUAL_BOOT_TIMO (WDT_INITIAL_TIMO - 5)
+#define WDT_TIMO2TICKS(t) (TICKS_PER_uSEC * 1000000 * (t))
+
+static int heartbeat = WDT_TIMO;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536, default=" __MODULE_STRING(WDT_TIMO) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)");
+
+static int force_disable = 0; // setting this to 1 will disable the wdt timer
+module_param(force_disable, int, 0);
+MODULE_PARM_DESC(force_disable, "Disable watchdog by default "
+		"(default=0, enable watchdog)");
+
+static char expect_close;
+
+//Function Declaration
+int __init wdt_init(void);
+
+static irqreturn_t wdt_isr(int irq, void *devid, struct pt_regs *regs)
+{
+	/* clear timeout */
+	AST_WRITE_REG(WDT_Clr, 1);
+
+	return (IRQ_HANDLED);
+}
+
+void wdt_disable(void)
+{
+    register unsigned int regVal;
+                                                                                     
+    /* reset WDT_Ctrl[0] as 0 */
+    regVal = AST_READ_REG(WDT_Ctrl);
+    regVal &= ~(WDT_CTRL_B_ENABLE);
+    AST_WRITE_REG(WDT_Ctrl, regVal);
+}
+
+void wdt_sel_clk_src(unsigned char sourceClk)
+{
+    register unsigned int regVal;
+                                                                                     
+    regVal = AST_READ_REG(WDT_Ctrl);
+    if (sourceClk == WDT_CLK_SRC_PCLK)
+    {
+        /* reset WDT_Ctrl[4] as 0 */
+        regVal &= ~(WDT_CTRL_B_1MCLK);
+    }
+    else
+    {
+        /* set WDT_Ctrl[4] as 1 */
+        regVal |= WDT_CTRL_B_1MCLK;
+    }
+    AST_WRITE_REG(WDT_Ctrl, regVal);
+}
+
+void wdt_set_timeout_action(bool_T bResetOut, bool_T bIntrSys,
+			    bool_T bClrAfter, bool_T bResetARMOnly)
+{
+	register unsigned int regVal;
+
+	regVal = AST_READ_REG(WDT_Ctrl);
+
+	if (bResetOut)
+	{
+		/* set WDT_Ctrl[3] = 1 */
+		regVal |= WDT_CTRL_B_EXT;
+	}
+	else
+	{
+		/* reset WDT_Ctrl[3] = 0 */
+		regVal &= ~WDT_CTRL_B_EXT;
+	}
+
+	if (bIntrSys)
+	{
+		/* set WDT_Ctrl[2] = 1 */
+		regVal |= WDT_CTRL_B_INTR;
+	}
+	else
+	{
+		/* reset WDT_Ctrl[2] = 0 */
+		regVal &= ~WDT_CTRL_B_INTR;
+	}
+
+	if (bClrAfter)
+	{
+		/* set WDT_Ctrl[1] = 1 */
+		regVal |= WDT_CTRL_B_CLEAR_AFTER;
+	}
+	else
+	{
+		/* reset WDT_Ctrl[1] = 0 */
+		regVal &= ~WDT_CTRL_B_CLEAR_AFTER;
+	}
+
+	if (bResetARMOnly)
+	{
+		/* set WDT_Ctrl[6..5] = 10 ie, reset ARM only */
+		regVal &= ~WDT_CTRL_B_RESET_MASK;
+		regVal |= WDT_CTRL_B_RESET_ARM;
+	}
+	else
+	{
+		/* reset WDT_CTrl[6..5] = 01, full chip */
+		regVal &= ~WDT_CTRL_B_RESET_MASK;
+		regVal |= WDT_CTRL_B_RESET_FULL;
+	}
+	
+
+	AST_WRITE_REG(WDT_Ctrl, regVal);
+}
+
+void wdt_enable(void)
+{
+	if (!force_disable) {
+		register unsigned int regVal;
+	
+		/* set WDT_Ctrl[0] as 1 */
+		regVal = AST_READ_REG(WDT_Ctrl);
+		regVal |= WDT_CTRL_B_ENABLE;
+		AST_WRITE_REG(WDT_Ctrl, regVal);
+	}
+}
+
+bool_T wdt_is_enabled(void)
+{
+	unsigned int reg;
+	reg = AST_READ_REG(WDT_Ctrl);
+	return reg & WDT_CTRL_B_ENABLE;
+}
+
+#ifdef CONFIG_AST_WATCHDOG_REARM_DUAL_BOOT
+void wdt_dual_boot_restart(unsigned int timeo)
+{
+	AST_WRITE_REG(WDT2_Reload, WDT_TIMO2TICKS(timeo));
+	AST_WRITE_REG(WDT2_Restart, 0x4755);	/* reload! */
+	printk(KERN_INFO "Re-arm the dual boot watchdog for %u seconds\n", timeo);
+}
+#endif
+
+void wdt_restart_new(unsigned int nPeriod, int sourceClk, bool_T bResetOut,
+		     bool_T bIntrSys, bool_T bClrAfter, bool_T bResetARMOnly)
+{
+	bool_T enabled = wdt_is_enabled();
+
+	if (enabled) {
+		wdt_disable();
+	}
+
+	AST_WRITE_REG(WDT_Reload, nPeriod);
+
+	wdt_sel_clk_src(sourceClk);
+
+	wdt_set_timeout_action(bResetOut, bIntrSys, bClrAfter, bResetARMOnly);
+
+	AST_WRITE_REG(WDT_Restart, 0x4755);	/* reload! */
+
+	if (enabled) {
+  	  wdt_enable();
+	}
+}
+
+void wdt_restart(void)
+{
+	if (!force_disable) {
+		wdt_disable();
+		AST_WRITE_REG(WDT_Restart, 0x4755);	/* reload! */
+		wdt_enable();
+	}
+}
+
+
+/**
+ *	wdt_set_heartbeat:
+ *	@t:		the new heartbeat value that needs to be set.
+ *
+ *	Set a new heartbeat value for the watchdog device. If the heartbeat value is
+ *	incorrect we keep the old value and return -EINVAL. If successfull we
+ *	return 0.
+ */
+static int wdt_set_heartbeat(int t)
+{
+  if ((t < 1) || (t > 1000))
+      return -EINVAL;
+      
+  heartbeat=t;
+      
+  wdt_restart_new(WDT_TIMO2TICKS(t), WDT_CLK_SRC_EXT,
+                  /* No Ext, No intr, Self clear, Full chip reset */
+                  FALSE, FALSE, TRUE, FALSE);
+  return 0;
+}
+
+/*
+   Kernel Interfaces
+*/
+
+/**
+ *	ast_wdt_write: 
+ *	@file: file handle to the watchdog
+ *	@buf: buffer to write (unused as data does not matter here
+ *	@count: count of bytes
+ *	@ppos: pointer to the position to write. No seeks allowed
+ *
+ *	A write to a watchdog device is defined as a keepalive signal.
+ *	Any data will do, except for the reserved letters 'V' (to enable
+ *	magic close), the letter 'X' (to override the current watchdog
+ *	settings and disable it), or the letter 'x' (to turn off override
+ *	and restore its old settings).
+ */
+         
+ static ssize_t ast_wdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
+ {
+   if(count) 
+   {
+     if (!nowayout)
+     {
+        size_t i;
+             
+        /* In case it was set long ago */
+        expect_close = 0;
+                         
+        for (i = 0; i != count; i++) 
+        {
+          char c;
+          if (get_user(c, buf + i))
+            return -EFAULT;
+          switch(c) {
+           case 'V':
+             expect_close = 42;
+             break;
+           case 'X':
+             force_disable = 1;
+             wdt_disable();
+             break;
+           case 'x':
+             force_disable = 0;
+             break;
+           default:
+             break;
+          }
+        }
+      }
+      wdt_restart();
+   }
+   return count; 
+ }
+ 
+/**
+ *	ast_wdt_ioctl:
+ *	@inode: inode of the device
+ *	@file: file handle to the device
+ *	@cmd: watchdog command
+ *	@arg: argument pointer
+ * *	The watchdog API defines a common set of functions for all watchdogs
+ *	according to their available features. We only actually usefully support
+ *	querying capabilities and current status.
+ */
+          
+static int ast_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+  void __user *argp = (void __user *)arg;
+  int __user *p = argp;
+  int new_heartbeat;
+      
+  static struct watchdog_info ident = 
+  {
+    .options 		= WDIOF_SETTIMEOUT|
+                          WDIOF_MAGICCLOSE|
+                          WDIOF_KEEPALIVEPING,
+    .firmware_version 	= 1,
+    .identity 		= "AST WDT",
+  };
+  
+  switch(cmd)
+  {
+    default:
+      return -ENOIOCTLCMD;
+    case WDIOC_GETSUPPORT:
+      return copy_to_user(argp, &ident, sizeof(ident))?-EFAULT:0;                      
+    case WDIOC_GETSTATUS:
+    case WDIOC_GETBOOTSTATUS:
+      return put_user(0, p);
+    case WDIOC_KEEPALIVE:
+      wdt_restart();
+      return 0;
+    case WDIOC_SETTIMEOUT:
+      if (get_user(new_heartbeat, p))
+        return -EFAULT;
+
+      if (wdt_set_heartbeat(new_heartbeat))
+        return -EINVAL;
+
+      /* Fall */
+    case WDIOC_GETTIMEOUT:
+      return put_user(heartbeat, p);      
+  }
+}
+/**
+*	ast_wdt_open:
+*	@inode: inode of device
+*	@file: file handle to device
+*
+*	The watchdog device has been opened. The watchdog device is single
+*	open and on opening we load the counters. Counter zero is a 100Hz
+*	cascade, into counter 1 which downcounts to reboot. When the counter
+*	triggers counter 2 downcounts the length of the reset pulse which
+*	set set to be as long as possible.
+*/
+          
+static int ast_wdt_open(struct inode *inode, struct file *file)
+{
+  /*
+   *	Activate
+   */
+ // wdt_init(); 
+  wdt_restart();
+  return nonseekable_open(inode, file);
+} 
+
+/**
+*	ast_wdt_release:
+*	@inode: inode to board
+*	@file: file handle to board
+*
+*	The watchdog has a configurable API. There is a religious dispute
+*	between people who want their watchdog to be able to shut down and
+*	those who want to be sure if the watchdog manager dies the machine
+*	reboots. In the former case we disable the counters, in the latter
+*	case you have to open it again very soon.
+*/
+          
+static int ast_wdt_release(struct inode *inode, struct file *file)
+{
+  if (expect_close != 42 && !nowayout) 
+  {
+     /* handles the case where the device is closed without the "magic
+      * close" character (anything that is not 'V' qualifies -- see the
+      * original Linux watchdog spec for more about this). closing the
+      * device in this case must disable the timer too, so automatic
+      * restarts are inhibited.
+      */
+
+      wdt_disable();
+  } 
+  else 
+  {
+      /* handles the case where the kernel is compiled with nowayout, or
+       * if the user specifies that the watchdog should continue ticking
+       * after device closure (by writing a 'V' before closing the device)
+       */
+      wdt_restart();
+  }
+  expect_close = 0;
+  return 0;
+}
+
+/**
+*	notify_sys:
+*	@this: our notifier block
+*	@code: the event being reported
+*	@unused: unused
+*
+*	Our notifier is called on system shutdowns. We want to turn the card
+*	off at reboot otherwise the machine will reboot again during memory
+*	test or worse yet during the following fsck. This would suck, in fact
+*	trust me - if it happens it does suck.
+*/
+          
+static int ast_wdt_notify_sys(struct notifier_block *this, unsigned long code, void *unused)
+{
+   if(code==SYS_DOWN || code==SYS_HALT) 
+   {
+     /* Turn the WDT off */
+     wdt_disable();
+   }
+   return NOTIFY_DONE;
+}
+
+extern void ast_soc_reset_soc(void)
+{
+	writel(0x10 , WDT_Reload);
+	writel(0x4755, WDT_Restart);
+	writel(WDT_CTRL_B_RESET_SOC|WDT_CTRL_B_CLEAR_AFTER|WDT_CTRL_B_ENABLE,
+	 WDT_Ctrl);
+}
+EXPORT_SYMBOL(ast_soc_reset_soc);
+
+extern void ast_wdt_reset_full(void)
+{
+	writel(0x10 , WDT_Reload);
+	writel(0x4755, WDT_Restart);
+	writel(WDT_CTRL_B_RESET_FULL|WDT_CTRL_B_CLEAR_AFTER|WDT_CTRL_B_ENABLE,
+	  WDT_Ctrl);
+}
+EXPORT_SYMBOL(ast_wdt_reset_full);
+
+static struct file_operations ast_wdt_fops = 
+{
+  .owner	= THIS_MODULE,
+  .llseek	= no_llseek,
+  .write	= ast_wdt_write,
+  .ioctl	= ast_wdt_ioctl,
+  .open		= ast_wdt_open,
+  .release	= ast_wdt_release,
+};
+
+static struct miscdevice ast_wdt_miscdev = 
+{
+   .minor	= WATCHDOG_MINOR,
+   .name	= "watchdog",
+   .fops	= &ast_wdt_fops,
+};
+     
+static struct notifier_block ast_wdt_notifier = 
+{
+   .notifier_call=ast_wdt_notify_sys,
+};
+
+static int ast_wdt_probe(struct platform_device *pdev)
+{
+   int ret;  
+    
+   /* register ISR */
+   if (request_irq(IRQ_WDT, (void *)wdt_isr, IRQF_DISABLED, "WDT", NULL))
+   {
+     printk("unable to register interrupt INT_WDT = %d\n", IRQ_WDT);
+     return (-1);
+   }
+   else
+     printk("success to register interrupt for INT_WDT (%d)\n", IRQ_WDT);
+
+   ret = register_reboot_notifier(&ast_wdt_notifier);
+   if(ret) 
+   {
+     printk(KERN_ERR "wdt: cannot register reboot notifier (err=%d)\n", ret);
+     free_irq(IRQ_WDT, NULL);
+     return ret;
+   }
+
+   ret = misc_register(&ast_wdt_miscdev);
+   if (ret) 
+   {
+      printk(KERN_ERR "wdt: cannot register miscdev on minor=%d (err=%d)\n",WATCHDOG_MINOR, ret);
+      unregister_reboot_notifier(&ast_wdt_notifier);   
+      return ret;
+   }
+
+#ifdef CONFIG_AST_WATCHDOG_REARM_DUAL_BOOT
+   /* re-arm dual boot watchdog */
+   wdt_dual_boot_restart(WDT_DUAL_BOOT_TIMO);
+#endif
+
+   /* interrupt the system while WDT timeout */
+   wdt_restart_new(WDT_TIMO2TICKS(WDT_INITIAL_TIMO), WDT_CLK_SRC_EXT,
+		   /* No Ext, No intr, Self clear, Full chip reset */
+		   FALSE, FALSE, TRUE, FALSE);
+   
+   /* enable it by default */
+   if (!force_disable) {
+     wdt_enable();
+   }
+
+   /* change the reload value back to regular */
+   AST_WRITE_REG(WDT_Reload, WDT_TIMO2TICKS(heartbeat));
+
+   printk(KERN_INFO "UMVP2500 WDT is installed. (irq:%d, initial timeout:%ds, "
+          "timeout:%ds nowayout:%d enabled:%s)\n",
+          IRQ_WDT, WDT_INITIAL_TIMO, heartbeat, nowayout,
+          wdt_is_enabled() ? "yes" : "no");
+
+   return (0);
+}
+
+static int ast_wdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&ast_wdt_miscdev);
+	disable_irq(IRQ_WDT);
+	free_irq(IRQ_WDT, NULL);		
+	return 0;
+}
+
+static void ast_wdt_shutdown(struct platform_device *dev)
+{
+	wdt_disable();
+}
+
+static struct platform_driver ast_wdt_driver = {
+        .probe          = ast_wdt_probe,
+        .remove         = ast_wdt_remove,
+        .shutdown       = ast_wdt_shutdown,
+#if 0        
+        .suspend                = ast_wdt_suspend,
+        .resume         = ast_wdt_resume,
+#endif        
+        .driver         = {
+                .owner  = THIS_MODULE,
+                .name   = "ast-wdt",
+        },
+};
+
+static char banner[] __initdata = KERN_INFO "ASPEED Watchdog Timer, ASPEED Technology Inc.\n";
+
+static int __init watchdog_init(void)
+{
+        printk(banner);
+
+        return platform_driver_register(&ast_wdt_driver);
+}
+
+static void __exit watchdog_exit(void)
+{
+        platform_driver_unregister(&ast_wdt_driver);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_DESCRIPTION("Driver for AST Watch Dog");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
new file mode 100644
index 0000000..e8ae638
--- /dev/null
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -0,0 +1,449 @@
+/*
+ * Watchdog driver for Atmel AT32AP700X devices
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *
+ * Errata: WDT Clear is blocked after WDT Reset
+ *
+ * A watchdog timer event will, after reset, block writes to the WDT_CLEAR
+ * register, preventing the program to clear the next Watchdog Timer Reset.
+ *
+ * If you still want to use the WDT after a WDT reset a small code can be
+ * insterted at the startup checking the AVR32_PM.rcause register for WDT reset
+ * and use a GPIO pin to reset the system. This method requires that one of the
+ * GPIO pins are available and connected externally to the RESET_N pin. After
+ * the GPIO pin has pulled down the reset line the GPIO will be reset and leave
+ * the pin tristated with pullup.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+#define TIMEOUT_MIN		1
+#define TIMEOUT_MAX		2
+#define TIMEOUT_DEFAULT		TIMEOUT_MAX
+
+/* module parameters */
+static int timeout =  TIMEOUT_DEFAULT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Timeout value. Limited to be 1 or 2 seconds. (default="
+		__MODULE_STRING(TIMEOUT_DEFAULT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+		__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/* Watchdog registers and write/read macro */
+#define WDT_CTRL		0x00
+#define WDT_CTRL_EN		   0
+#define WDT_CTRL_PSEL		   8
+#define WDT_CTRL_KEY		  24
+
+#define WDT_CLR			0x04
+
+#define WDT_RCAUSE		0x10
+#define WDT_RCAUSE_POR		   0
+#define WDT_RCAUSE_EXT		   2
+#define WDT_RCAUSE_WDT		   3
+#define WDT_RCAUSE_JTAG		   4
+#define WDT_RCAUSE_SERP		   5
+
+#define WDT_BIT(name)		(1 << WDT_##name)
+#define WDT_BF(name, value)	((value) << WDT_##name)
+
+#define wdt_readl(dev, reg)				\
+	__raw_readl((dev)->regs + WDT_##reg)
+#define wdt_writel(dev, reg, value)			\
+	__raw_writel((value), (dev)->regs + WDT_##reg)
+
+struct wdt_at32ap700x {
+	void __iomem		*regs;
+	spinlock_t		io_lock;
+	int			timeout;
+	int			boot_status;
+	unsigned long		users;
+	struct miscdevice	miscdev;
+};
+
+static struct wdt_at32ap700x *wdt;
+static char expect_release;
+
+/*
+ * Disable the watchdog.
+ */
+static inline void at32_wdt_stop(void)
+{
+	unsigned long psel;
+
+	spin_lock(&wdt->io_lock);
+	psel = wdt_readl(wdt, CTRL) & WDT_BF(CTRL_PSEL, 0x0f);
+	wdt_writel(wdt, CTRL, psel | WDT_BF(CTRL_KEY, 0x55));
+	wdt_writel(wdt, CTRL, psel | WDT_BF(CTRL_KEY, 0xaa));
+	spin_unlock(&wdt->io_lock);
+}
+
+/*
+ * Enable and reset the watchdog.
+ */
+static inline void at32_wdt_start(void)
+{
+	/* 0xf is 2^16 divider = 2 sec, 0xe is 2^15 divider = 1 sec */
+	unsigned long psel = (wdt->timeout > 1) ? 0xf : 0xe;
+
+	spin_lock(&wdt->io_lock);
+	wdt_writel(wdt, CTRL, WDT_BIT(CTRL_EN)
+			| WDT_BF(CTRL_PSEL, psel)
+			| WDT_BF(CTRL_KEY, 0x55));
+	wdt_writel(wdt, CTRL, WDT_BIT(CTRL_EN)
+			| WDT_BF(CTRL_PSEL, psel)
+			| WDT_BF(CTRL_KEY, 0xaa));
+	spin_unlock(&wdt->io_lock);
+}
+
+/*
+ * Pat the watchdog timer.
+ */
+static inline void at32_wdt_pat(void)
+{
+	spin_lock(&wdt->io_lock);
+	wdt_writel(wdt, CLR, 0x42);
+	spin_unlock(&wdt->io_lock);
+}
+
+/*
+ * Watchdog device is opened, and watchdog starts running.
+ */
+static int at32_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(1, &wdt->users))
+		return -EBUSY;
+
+	at32_wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+/*
+ * Close the watchdog device.
+ */
+static int at32_wdt_close(struct inode *inode, struct file *file)
+{
+	if (expect_release == 42) {
+		at32_wdt_stop();
+	} else {
+		dev_dbg(wdt->miscdev.parent,
+			"unexpected close, not stopping watchdog!\n");
+		at32_wdt_pat();
+	}
+	clear_bit(1, &wdt->users);
+	expect_release = 0;
+	return 0;
+}
+
+/*
+ * Change the watchdog time interval.
+ */
+static int at32_wdt_settimeout(int time)
+{
+	/*
+	 * All counting occurs at 1 / SLOW_CLOCK (32 kHz) and max prescaler is
+	 * 2 ^ 16 allowing up to 2 seconds timeout.
+	 */
+	if ((time < TIMEOUT_MIN) || (time > TIMEOUT_MAX))
+		return -EINVAL;
+
+	/*
+	 * Set new watchdog time. It will be used when at32_wdt_start() is
+	 * called.
+	 */
+	wdt->timeout = time;
+	return 0;
+}
+
+/*
+ * Get the watchdog status.
+ */
+static int at32_wdt_get_status(void)
+{
+	int rcause;
+	int status = 0;
+
+	rcause = wdt_readl(wdt, RCAUSE);
+
+	switch (rcause) {
+	case WDT_BIT(RCAUSE_EXT):
+		status = WDIOF_EXTERN1;
+		break;
+	case WDT_BIT(RCAUSE_WDT):
+		status = WDIOF_CARDRESET;
+		break;
+	case WDT_BIT(RCAUSE_POR):  /* fall through */
+	case WDT_BIT(RCAUSE_JTAG): /* fall through */
+	case WDT_BIT(RCAUSE_SERP): /* fall through */
+	default:
+		break;
+	}
+
+	return status;
+}
+
+static struct watchdog_info at32_wdt_info = {
+	.identity	= "at32ap700x watchdog",
+	.options	= WDIOF_SETTIMEOUT |
+			  WDIOF_KEEPALIVEPING |
+			  WDIOF_MAGICCLOSE,
+};
+
+/*
+ * Handle commands from user-space.
+ */
+static long at32_wdt_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	int ret = -ENOTTY;
+	int time;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user(argp, &at32_wdt_info,
+				sizeof(at32_wdt_info)) ? -EFAULT : 0;
+		break;
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, p);
+		break;
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(wdt->boot_status, p);
+		break;
+	case WDIOC_SETOPTIONS:
+		ret = get_user(time, p);
+		if (ret)
+			break;
+		if (time & WDIOS_DISABLECARD)
+			at32_wdt_stop();
+		if (time & WDIOS_ENABLECARD)
+			at32_wdt_start();
+		ret = 0;
+		break;
+	case WDIOC_KEEPALIVE:
+		at32_wdt_pat();
+		ret = 0;
+		break;
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, p);
+		if (ret)
+			break;
+		ret = at32_wdt_settimeout(time);
+		if (ret)
+			break;
+		/* Enable new time value */
+		at32_wdt_start();
+		/* fall through */
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(wdt->timeout, p);
+		break;
+	}
+
+	return ret;
+}
+
+static ssize_t at32_wdt_write(struct file *file, const char __user *data,
+				size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/*
+			 * note: just in case someone wrote the magic
+			 * character five months ago...
+			 */
+			expect_release = 0;
+
+			/*
+			 * scan to see whether or not we got the magic
+			 * character
+			 */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_release = 42;
+			}
+		}
+		/* someone wrote to us, we should pat the watchdog */
+		at32_wdt_pat();
+	}
+	return len;
+}
+
+static const struct file_operations at32_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl	= at32_wdt_ioctl,
+	.open		= at32_wdt_open,
+	.release	= at32_wdt_close,
+	.write		= at32_wdt_write,
+};
+
+static int __init at32_wdt_probe(struct platform_device *pdev)
+{
+	struct resource	*regs;
+	int ret;
+
+	if (wdt) {
+		dev_dbg(&pdev->dev, "only 1 wdt instance supported.\n");
+		return -EBUSY;
+	}
+
+	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!regs) {
+		dev_dbg(&pdev->dev, "missing mmio resource\n");
+		return -ENXIO;
+	}
+
+	wdt = kzalloc(sizeof(struct wdt_at32ap700x), GFP_KERNEL);
+	if (!wdt) {
+		dev_dbg(&pdev->dev, "no memory for wdt structure\n");
+		return -ENOMEM;
+	}
+
+	wdt->regs = ioremap(regs->start, regs->end - regs->start + 1);
+	if (!wdt->regs) {
+		ret = -ENOMEM;
+		dev_dbg(&pdev->dev, "could not map I/O memory\n");
+		goto err_free;
+	}
+
+	spin_lock_init(&wdt->io_lock);
+	wdt->boot_status = at32_wdt_get_status();
+
+	/* Work-around for watchdog silicon errata. */
+	if (wdt->boot_status & WDIOF_CARDRESET) {
+		dev_info(&pdev->dev, "CPU must be reset with external "
+				"reset or POR due to silicon errata.\n");
+		ret = -EIO;
+		goto err_iounmap;
+	} else {
+		wdt->users = 0;
+	}
+	wdt->miscdev.minor = WATCHDOG_MINOR;
+	wdt->miscdev.name = "watchdog";
+	wdt->miscdev.fops = &at32_wdt_fops;
+
+	if (at32_wdt_settimeout(timeout)) {
+		at32_wdt_settimeout(TIMEOUT_DEFAULT);
+		dev_dbg(&pdev->dev,
+			"default timeout invalid, set to %d sec.\n",
+			TIMEOUT_DEFAULT);
+	}
+
+	ret = misc_register(&wdt->miscdev);
+	if (ret) {
+		dev_dbg(&pdev->dev, "failed to register wdt miscdev\n");
+		goto err_iounmap;
+	}
+
+	platform_set_drvdata(pdev, wdt);
+	wdt->miscdev.parent = &pdev->dev;
+	dev_info(&pdev->dev,
+		"AT32AP700X WDT at 0x%p, timeout %d sec (nowayout=%d)\n",
+		wdt->regs, wdt->timeout, nowayout);
+
+	return 0;
+
+err_iounmap:
+	iounmap(wdt->regs);
+err_free:
+	kfree(wdt);
+	wdt = NULL;
+	return ret;
+}
+
+static int __exit at32_wdt_remove(struct platform_device *pdev)
+{
+	if (wdt && platform_get_drvdata(pdev) == wdt) {
+		/* Stop the timer before we leave */
+		if (!nowayout)
+			at32_wdt_stop();
+
+		misc_deregister(&wdt->miscdev);
+		iounmap(wdt->regs);
+		kfree(wdt);
+		wdt = NULL;
+		platform_set_drvdata(pdev, NULL);
+	}
+	return 0;
+}
+
+static void at32_wdt_shutdown(struct platform_device *pdev)
+{
+	at32_wdt_stop();
+}
+
+#ifdef CONFIG_PM
+static int at32_wdt_suspend(struct platform_device *pdev, pm_message_t message)
+{
+	at32_wdt_stop();
+	return 0;
+}
+
+static int at32_wdt_resume(struct platform_device *pdev)
+{
+	if (wdt->users)
+		at32_wdt_start();
+	return 0;
+}
+#else
+#define at32_wdt_suspend NULL
+#define at32_wdt_resume NULL
+#endif
+
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:at32_wdt");
+
+static struct platform_driver at32_wdt_driver = {
+	.remove		= __exit_p(at32_wdt_remove),
+	.suspend	= at32_wdt_suspend,
+	.resume		= at32_wdt_resume,
+	.driver		= {
+		.name	= "at32_wdt",
+		.owner	= THIS_MODULE,
+	},
+	.shutdown	= at32_wdt_shutdown,
+};
+
+static int __init at32_wdt_init(void)
+{
+	return platform_driver_probe(&at32_wdt_driver, at32_wdt_probe);
+}
+module_init(at32_wdt_init);
+
+static void __exit at32_wdt_exit(void)
+{
+	platform_driver_unregister(&at32_wdt_driver);
+}
+module_exit(at32_wdt_exit);
+
+MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>");
+MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
new file mode 100644
index 0000000..993e5f5
--- /dev/null
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -0,0 +1,288 @@
+/*
+ * Watchdog driver for Atmel AT91RM9200 (Thunder)
+ *
+ *  Copyright (C) 2003 SAN People (Pty) Ltd
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <linux/uaccess.h>
+#include <mach/at91_st.h>
+
+#define WDT_DEFAULT_TIME	5	/* seconds */
+#define WDT_MAX_TIME		256	/* seconds */
+
+static int wdt_time = WDT_DEFAULT_TIME;
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+module_param(wdt_time, int, 0);
+MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="
+				__MODULE_STRING(WDT_DEFAULT_TIME) ")");
+
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+#endif
+
+
+static unsigned long at91wdt_busy;
+
+/* ......................................................................... */
+
+/*
+ * Disable the watchdog.
+ */
+static inline void at91_wdt_stop(void)
+{
+	at91_sys_write(AT91_ST_WDMR, AT91_ST_EXTEN);
+}
+
+/*
+ * Enable and reset the watchdog.
+ */
+static inline void at91_wdt_start(void)
+{
+	at91_sys_write(AT91_ST_WDMR, AT91_ST_EXTEN | AT91_ST_RSTEN |
+				(((65536 * wdt_time) >> 8) & AT91_ST_WDV));
+	at91_sys_write(AT91_ST_CR, AT91_ST_WDRST);
+}
+
+/*
+ * Reload the watchdog timer.  (ie, pat the watchdog)
+ */
+static inline void at91_wdt_reload(void)
+{
+	at91_sys_write(AT91_ST_CR, AT91_ST_WDRST);
+}
+
+/* ......................................................................... */
+
+/*
+ * Watchdog device is opened, and watchdog starts running.
+ */
+static int at91_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &at91wdt_busy))
+		return -EBUSY;
+
+	at91_wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+/*
+ * Close the watchdog device.
+ * If CONFIG_WATCHDOG_NOWAYOUT is NOT defined then the watchdog is also
+ *  disabled.
+ */
+static int at91_wdt_close(struct inode *inode, struct file *file)
+{
+	/* Disable the watchdog when file is closed */
+	if (!nowayout)
+		at91_wdt_stop();
+
+	clear_bit(0, &at91wdt_busy);
+	return 0;
+}
+
+/*
+ * Change the watchdog time interval.
+ */
+static int at91_wdt_settimeout(int new_time)
+{
+	/*
+	 * All counting occurs at SLOW_CLOCK / 128 = 0.256 Hz
+	 *
+	 * Since WDV is a 16-bit counter, the maximum period is
+	 * 65536 / 0.256 = 256 seconds.
+	 */
+	if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
+		return -EINVAL;
+
+	/* Set new watchdog time. It will be used when
+	   at91_wdt_start() is called. */
+	wdt_time = new_time;
+	return 0;
+}
+
+static struct watchdog_info at91_wdt_info = {
+	.identity	= "at91 watchdog",
+	.options	= WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+};
+
+/*
+ * Handle commands from user-space.
+ */
+static long at91_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_value;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &at91_wdt_info,
+				sizeof(at91_wdt_info)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+		if (get_user(new_value, p))
+			return -EFAULT;
+		if (new_value & WDIOS_DISABLECARD)
+			at91_wdt_stop();
+		if (new_value & WDIOS_ENABLECARD)
+			at91_wdt_start();
+		return 0;
+	case WDIOC_KEEPALIVE:
+		at91_wdt_reload();	/* pat the watchdog */
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_value, p))
+			return -EFAULT;
+		if (at91_wdt_settimeout(new_value))
+			return -EINVAL;
+		/* Enable new time value */
+		at91_wdt_start();
+		/* Return current value */
+		return put_user(wdt_time, p);
+	case WDIOC_GETTIMEOUT:
+		return put_user(wdt_time, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/*
+ * Pat the watchdog whenever device is written to.
+ */
+static ssize_t at91_wdt_write(struct file *file, const char *data,
+						size_t len, loff_t *ppos)
+{
+	at91_wdt_reload();		/* pat the watchdog */
+	return len;
+}
+
+/* ......................................................................... */
+
+static const struct file_operations at91wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl	= at91_wdt_ioctl,
+	.open		= at91_wdt_open,
+	.release	= at91_wdt_close,
+	.write		= at91_wdt_write,
+};
+
+static struct miscdevice at91wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &at91wdt_fops,
+};
+
+static int __init at91wdt_probe(struct platform_device *pdev)
+{
+	int res;
+
+	if (at91wdt_miscdev.parent)
+		return -EBUSY;
+	at91wdt_miscdev.parent = &pdev->dev;
+
+	res = misc_register(&at91wdt_miscdev);
+	if (res)
+		return res;
+
+	printk(KERN_INFO "AT91 Watchdog Timer enabled (%d seconds%s)\n",
+				wdt_time, nowayout ? ", nowayout" : "");
+	return 0;
+}
+
+static int __exit at91wdt_remove(struct platform_device *pdev)
+{
+	int res;
+
+	res = misc_deregister(&at91wdt_miscdev);
+	if (!res)
+		at91wdt_miscdev.parent = NULL;
+
+	return res;
+}
+
+static void at91wdt_shutdown(struct platform_device *pdev)
+{
+	at91_wdt_stop();
+}
+
+#ifdef CONFIG_PM
+
+static int at91wdt_suspend(struct platform_device *pdev, pm_message_t message)
+{
+	at91_wdt_stop();
+	return 0;
+}
+
+static int at91wdt_resume(struct platform_device *pdev)
+{
+	if (at91wdt_busy)
+		at91_wdt_start();
+	return 0;
+}
+
+#else
+#define at91wdt_suspend NULL
+#define at91wdt_resume	NULL
+#endif
+
+static struct platform_driver at91wdt_driver = {
+	.probe		= at91wdt_probe,
+	.remove		= __exit_p(at91wdt_remove),
+	.shutdown	= at91wdt_shutdown,
+	.suspend	= at91wdt_suspend,
+	.resume		= at91wdt_resume,
+	.driver		= {
+		.name	= "at91_wdt",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init at91_wdt_init(void)
+{
+	/* Check that the heartbeat value is within range;
+	   if not reset to the default */
+	if (at91_wdt_settimeout(wdt_time)) {
+		at91_wdt_settimeout(WDT_DEFAULT_TIME);
+		pr_info("at91_wdt: wdt_time value must be 1 <= wdt_time <= 256, using %d\n", wdt_time);
+	}
+
+	return platform_driver_register(&at91wdt_driver);
+}
+
+static void __exit at91_wdt_exit(void)
+{
+	platform_driver_unregister(&at91wdt_driver);
+}
+
+module_init(at91_wdt_init);
+module_exit(at91_wdt_exit);
+
+MODULE_AUTHOR("Andrew Victor");
+MODULE_DESCRIPTION("Watchdog driver for Atmel AT91RM9200");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:at91_wdt");
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
new file mode 100644
index 0000000..b1da287
--- /dev/null
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -0,0 +1,328 @@
+/*
+ * Watchdog driver for Atmel AT91SAM9x processors.
+ *
+ * Copyright (C) 2008 Renaud CERRATO r.cerrato@til-technologies.fr
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/*
+ * The Watchdog Timer Mode Register can be only written to once. If the
+ * timeout need to be set from Linux, be sure that the bootstrap or the
+ * bootloader doesn't write to this register.
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <linux/jiffies.h>
+#include <linux/timer.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
+
+#include <mach/at91_wdt.h>
+
+#define DRV_NAME "AT91SAM9 Watchdog"
+
+/* AT91SAM9 watchdog runs a 12bit counter @ 256Hz,
+ * use this to convert a watchdog
+ * value from/to milliseconds.
+ */
+#define ms_to_ticks(t)	(((t << 8) / 1000) - 1)
+#define ticks_to_ms(t)	(((t + 1) * 1000) >> 8)
+
+/* Hardware timeout in seconds */
+#define WDT_HW_TIMEOUT 2
+
+/* Timer heartbeat (500ms) */
+#define WDT_TIMEOUT	(HZ/2)
+
+/* User land timeout */
+#define WDT_HEARTBEAT 15
+static int heartbeat = WDT_HEARTBEAT;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. "
+	"(default = " __MODULE_STRING(WDT_HEARTBEAT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
+	"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static void at91_ping(unsigned long data);
+
+static struct {
+	unsigned long next_heartbeat;	/* the next_heartbeat for the timer */
+	unsigned long open;
+	char expect_close;
+	struct timer_list timer;	/* The timer that pings the watchdog */
+} at91wdt_private;
+
+/* ......................................................................... */
+
+
+/*
+ * Reload the watchdog timer.  (ie, pat the watchdog)
+ */
+static inline void at91_wdt_reset(void)
+{
+	at91_sys_write(AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
+}
+
+/*
+ * Timer tick
+ */
+static void at91_ping(unsigned long data)
+{
+	if (time_before(jiffies, at91wdt_private.next_heartbeat) ||
+			(!nowayout && !at91wdt_private.open)) {
+		at91_wdt_reset();
+		mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
+	} else
+		printk(KERN_CRIT DRV_NAME": I will reset your machine !\n");
+}
+
+/*
+ * Watchdog device is opened, and watchdog starts running.
+ */
+static int at91_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &at91wdt_private.open))
+		return -EBUSY;
+
+	at91wdt_private.next_heartbeat = jiffies + heartbeat * HZ;
+	mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
+
+	return nonseekable_open(inode, file);
+}
+
+/*
+ * Close the watchdog device.
+ */
+static int at91_wdt_close(struct inode *inode, struct file *file)
+{
+	clear_bit(0, &at91wdt_private.open);
+
+	/* stop internal ping */
+	if (!at91wdt_private.expect_close)
+		del_timer(&at91wdt_private.timer);
+
+	at91wdt_private.expect_close = 0;
+	return 0;
+}
+
+/*
+ * Set the watchdog time interval in 1/256Hz (write-once)
+ * Counter is 12 bit.
+ */
+static int at91_wdt_settimeout(unsigned int timeout)
+{
+	unsigned int reg;
+	unsigned int mr;
+
+	/* Check if disabled */
+	mr = at91_sys_read(AT91_WDT_MR);
+	if (mr & AT91_WDT_WDDIS) {
+		printk(KERN_ERR DRV_NAME": sorry, watchdog is disabled\n");
+		return -EIO;
+	}
+
+	/*
+	 * All counting occurs at SLOW_CLOCK / 128 = 256 Hz
+	 *
+	 * Since WDV is a 12-bit counter, the maximum period is
+	 * 4096 / 256 = 16 seconds.
+	 */
+	reg = AT91_WDT_WDRSTEN	/* causes watchdog reset */
+		/* | AT91_WDT_WDRPROC	causes processor reset only */
+		| AT91_WDT_WDDBGHLT	/* disabled in debug mode */
+		| AT91_WDT_WDD		/* restart at any time */
+		| (timeout & AT91_WDT_WDV);  /* timer value */
+	at91_sys_write(AT91_WDT_MR, reg);
+
+	return 0;
+}
+
+static const struct watchdog_info at91_wdt_info = {
+	.identity	= DRV_NAME,
+	.options	= WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+};
+
+/*
+ * Handle commands from user-space.
+ */
+static long at91_wdt_ioctl(struct file *file,
+		unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_value;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &at91_wdt_info,
+				    sizeof(at91_wdt_info)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_KEEPALIVE:
+		at91wdt_private.next_heartbeat = jiffies + heartbeat * HZ;
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_value, p))
+			return -EFAULT;
+
+		heartbeat = new_value;
+		at91wdt_private.next_heartbeat = jiffies + heartbeat * HZ;
+
+		return put_user(new_value, p);  /* return current value */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+	}
+	return -ENOTTY;
+}
+
+/*
+ * Pat the watchdog whenever device is written to.
+ */
+static ssize_t at91_wdt_write(struct file *file, const char *data, size_t len,
+      loff_t *ppos)
+{
+	if (!len)
+		return 0;
+
+	/* Scan for magic character */
+	if (!nowayout) {
+		size_t i;
+
+		at91wdt_private.expect_close = 0;
+
+		for (i = 0; i < len; i++) {
+			char c;
+			if (get_user(c, data + i))
+				return -EFAULT;
+			if (c == 'V') {
+				at91wdt_private.expect_close = 42;
+				break;
+			}
+		}
+	}
+
+	at91wdt_private.next_heartbeat = jiffies + heartbeat * HZ;
+
+	return len;
+}
+
+/* ......................................................................... */
+
+static const struct file_operations at91wdt_fops = {
+	.owner			= THIS_MODULE,
+	.llseek			= no_llseek,
+	.unlocked_ioctl	= at91_wdt_ioctl,
+	.open			= at91_wdt_open,
+	.release		= at91_wdt_close,
+	.write			= at91_wdt_write,
+};
+
+static struct miscdevice at91wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &at91wdt_fops,
+};
+
+static int __init at91wdt_probe(struct platform_device *pdev)
+{
+	int res;
+
+	if (at91wdt_miscdev.parent)
+		return -EBUSY;
+	at91wdt_miscdev.parent = &pdev->dev;
+
+	/* Set watchdog */
+	res = at91_wdt_settimeout(ms_to_ticks(WDT_HW_TIMEOUT * 1000));
+	if (res)
+		return res;
+
+	res = misc_register(&at91wdt_miscdev);
+	if (res)
+		return res;
+
+	at91wdt_private.next_heartbeat = jiffies + heartbeat * HZ;
+	setup_timer(&at91wdt_private.timer, at91_ping, 0);
+	mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
+
+	printk(KERN_INFO DRV_NAME " enabled (heartbeat=%d sec, nowayout=%d)\n",
+		heartbeat, nowayout);
+
+	return 0;
+}
+
+static int __exit at91wdt_remove(struct platform_device *pdev)
+{
+	int res;
+
+	res = misc_deregister(&at91wdt_miscdev);
+	if (!res)
+		at91wdt_miscdev.parent = NULL;
+
+	return res;
+}
+
+#ifdef CONFIG_PM
+
+static int at91wdt_suspend(struct platform_device *pdev, pm_message_t message)
+{
+	return 0;
+}
+
+static int at91wdt_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+
+#else
+#define at91wdt_suspend	NULL
+#define at91wdt_resume	NULL
+#endif
+
+static struct platform_driver at91wdt_driver = {
+	.remove		= __exit_p(at91wdt_remove),
+	.suspend	= at91wdt_suspend,
+	.resume		= at91wdt_resume,
+	.driver		= {
+		.name	= "at91_wdt",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init at91sam_wdt_init(void)
+{
+	return platform_driver_probe(&at91wdt_driver, at91wdt_probe);
+}
+
+static void __exit at91sam_wdt_exit(void)
+{
+	platform_driver_unregister(&at91wdt_driver);
+}
+
+module_init(at91sam_wdt_init);
+module_exit(at91sam_wdt_exit);
+
+MODULE_AUTHOR("Renaud CERRATO <r.cerrato@til-technologies.fr>");
+MODULE_DESCRIPTION("Watchdog driver for Atmel AT91SAM9x processors");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c
new file mode 100644
index 0000000..067a57c
--- /dev/null
+++ b/drivers/watchdog/bfin_wdt.c
@@ -0,0 +1,517 @@
+/*
+ * Blackfin On-Chip Watchdog Driver
+ *  Supports BF53[123]/BF53[467]/BF54[2489]/BF561
+ *
+ * Originally based on softdog.c
+ * Copyright 2006-2007 Analog Devices Inc.
+ * Copyright 2006-2007 Michele d'Amico
+ * Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/uaccess.h>
+#include <asm/blackfin.h>
+
+#define stamp(fmt, args...) pr_debug("%s:%i: " fmt "\n", __func__, __LINE__, ## args)
+#define stampit() stamp("here i am")
+#define pr_devinit(fmt, args...) ({ static const __devinitconst char __fmt[] = fmt; printk(__fmt, ## args); })
+#define pr_init(fmt, args...) ({ static const __initconst char __fmt[] = fmt; printk(__fmt, ## args); })
+
+#define WATCHDOG_NAME "bfin-wdt"
+#define PFX WATCHDOG_NAME ": "
+
+/* The BF561 has two watchdogs (one per core), but since Linux
+ * only runs on core A, we'll just work with that one.
+ */
+#ifdef BF561_FAMILY
+# define bfin_read_WDOG_CTL()    bfin_read_WDOGA_CTL()
+# define bfin_read_WDOG_CNT()    bfin_read_WDOGA_CNT()
+# define bfin_read_WDOG_STAT()   bfin_read_WDOGA_STAT()
+# define bfin_write_WDOG_CTL(x)  bfin_write_WDOGA_CTL(x)
+# define bfin_write_WDOG_CNT(x)  bfin_write_WDOGA_CNT(x)
+# define bfin_write_WDOG_STAT(x) bfin_write_WDOGA_STAT(x)
+#endif
+
+/* Bit in SWRST that indicates boot caused by watchdog */
+#define SWRST_RESET_WDOG 0x4000
+
+/* Bit in WDOG_CTL that indicates watchdog has expired (WDR0) */
+#define WDOG_EXPIRED 0x8000
+
+/* Masks for WDEV field in WDOG_CTL register */
+#define ICTL_RESET   0x0
+#define ICTL_NMI     0x2
+#define ICTL_GPI     0x4
+#define ICTL_NONE    0x6
+#define ICTL_MASK    0x6
+
+/* Masks for WDEN field in WDOG_CTL register */
+#define WDEN_MASK    0x0FF0
+#define WDEN_ENABLE  0x0000
+#define WDEN_DISABLE 0x0AD0
+
+/* some defaults */
+#define WATCHDOG_TIMEOUT 20
+
+static unsigned int timeout = WATCHDOG_TIMEOUT;
+static int nowayout = WATCHDOG_NOWAYOUT;
+static struct watchdog_info bfin_wdt_info;
+static unsigned long open_check;
+static char expect_close;
+static DEFINE_SPINLOCK(bfin_wdt_spinlock);
+
+/**
+ *	bfin_wdt_keepalive - Keep the Userspace Watchdog Alive
+ *
+ * 	The Userspace watchdog got a KeepAlive: schedule the next timeout.
+ */
+static int bfin_wdt_keepalive(void)
+{
+	stampit();
+	bfin_write_WDOG_STAT(0);
+	return 0;
+}
+
+/**
+ *	bfin_wdt_stop - Stop the Watchdog
+ *
+ *	Stops the on-chip watchdog.
+ */
+static int bfin_wdt_stop(void)
+{
+	stampit();
+	bfin_write_WDOG_CTL(WDEN_DISABLE);
+	return 0;
+}
+
+/**
+ *	bfin_wdt_start - Start the Watchdog
+ *
+ *	Starts the on-chip watchdog.  Automatically loads WDOG_CNT
+ *	into WDOG_STAT for us.
+ */
+static int bfin_wdt_start(void)
+{
+	stampit();
+	bfin_write_WDOG_CTL(WDEN_ENABLE | ICTL_RESET);
+	return 0;
+}
+
+/**
+ *	bfin_wdt_running - Check Watchdog status
+ *
+ *	See if the watchdog is running.
+ */
+static int bfin_wdt_running(void)
+{
+	stampit();
+	return ((bfin_read_WDOG_CTL() & WDEN_MASK) != WDEN_DISABLE);
+}
+
+/**
+ *	bfin_wdt_set_timeout - Set the Userspace Watchdog timeout
+ *	@t: new timeout value (in seconds)
+ *
+ *	Translate the specified timeout in seconds into System Clock
+ *	terms which is what the on-chip Watchdog requires.
+ */
+static int bfin_wdt_set_timeout(unsigned long t)
+{
+	u32 cnt;
+	unsigned long flags;
+
+	stampit();
+
+	cnt = t * get_sclk();
+	if (cnt < get_sclk()) {
+		printk(KERN_WARNING PFX "timeout value is too large\n");
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&bfin_wdt_spinlock, flags);
+	{
+		int run = bfin_wdt_running();
+		bfin_wdt_stop();
+		bfin_write_WDOG_CNT(cnt);
+		if (run)
+			bfin_wdt_start();
+	}
+	spin_unlock_irqrestore(&bfin_wdt_spinlock, flags);
+
+	timeout = t;
+
+	return 0;
+}
+
+/**
+ *	bfin_wdt_open - Open the Device
+ *	@inode: inode of device
+ *	@file: file handle of device
+ *
+ *	Watchdog device is opened and started.
+ */
+static int bfin_wdt_open(struct inode *inode, struct file *file)
+{
+	stampit();
+
+	if (test_and_set_bit(0, &open_check))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	bfin_wdt_keepalive();
+	bfin_wdt_start();
+
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	bfin_wdt_close - Close the Device
+ *	@inode: inode of device
+ *	@file: file handle of device
+ *
+ *	Watchdog device is closed and stopped.
+ */
+static int bfin_wdt_release(struct inode *inode, struct file *file)
+{
+	stampit();
+
+	if (expect_close == 42)
+		bfin_wdt_stop();
+	else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		bfin_wdt_keepalive();
+	}
+	expect_close = 0;
+	clear_bit(0, &open_check);
+	return 0;
+}
+
+/**
+ *	bfin_wdt_write - Write to Device
+ *	@file: file handle of device
+ *	@buf: buffer to write
+ *	@count: length of buffer
+ *	@ppos: offset
+ *
+ *	Pings the watchdog on write.
+ */
+static ssize_t bfin_wdt_write(struct file *file, const char __user *data,
+						size_t len, loff_t *ppos)
+{
+	stampit();
+
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		bfin_wdt_keepalive();
+	}
+
+	return len;
+}
+
+/**
+ *	bfin_wdt_ioctl - Query Device
+ *	@file: file handle of device
+ *	@cmd: watchdog command
+ *	@arg: argument
+ *
+ *	Query basic information from the device or ping it, as outlined by the
+ *	watchdog API.
+ */
+static long bfin_wdt_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	stampit();
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &bfin_wdt_info, sizeof(bfin_wdt_info)))
+			return -EFAULT;
+		else
+			return 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(!!(_bfin_swrst & SWRST_RESET_WDOG), p);
+	case WDIOC_SETOPTIONS: {
+		unsigned long flags;
+		int options, ret = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		spin_lock_irqsave(&bfin_wdt_spinlock, flags);
+		if (options & WDIOS_DISABLECARD) {
+			bfin_wdt_stop();
+			ret = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			bfin_wdt_start();
+			ret = 0;
+		}
+		spin_unlock_irqrestore(&bfin_wdt_spinlock, flags);
+		return ret;
+	}
+	case WDIOC_KEEPALIVE:
+		bfin_wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT: {
+		int new_timeout;
+
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (bfin_wdt_set_timeout(new_timeout))
+			return -EINVAL;
+	}
+	/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/**
+ *	bfin_wdt_notify_sys - Notifier Handler
+ *	@this: notifier block
+ *	@code: notifier event
+ *	@unused: unused
+ *
+ *	Handles specific events, such as turning off the watchdog during a
+ *	shutdown event.
+ */
+static int bfin_wdt_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	stampit();
+
+	if (code == SYS_DOWN || code == SYS_HALT)
+		bfin_wdt_stop();
+
+	return NOTIFY_DONE;
+}
+
+#ifdef CONFIG_PM
+static int state_before_suspend;
+
+/**
+ *	bfin_wdt_suspend - suspend the watchdog
+ *	@pdev: device being suspended
+ *	@state: requested suspend state
+ *
+ *	Remember if the watchdog was running and stop it.
+ *	TODO: is this even right?  Doesn't seem to be any
+ *	      standard in the watchdog world ...
+ */
+static int bfin_wdt_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	stampit();
+
+	state_before_suspend = bfin_wdt_running();
+	bfin_wdt_stop();
+
+	return 0;
+}
+
+/**
+ *	bfin_wdt_resume - resume the watchdog
+ *	@pdev: device being resumed
+ *
+ *	If the watchdog was running, turn it back on.
+ */
+static int bfin_wdt_resume(struct platform_device *pdev)
+{
+	stampit();
+
+	if (state_before_suspend) {
+		bfin_wdt_set_timeout(timeout);
+		bfin_wdt_start();
+	}
+
+	return 0;
+}
+#else
+# define bfin_wdt_suspend NULL
+# define bfin_wdt_resume NULL
+#endif
+
+static const struct file_operations bfin_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write    	= bfin_wdt_write,
+	.unlocked_ioctl	= bfin_wdt_ioctl,
+	.open		= bfin_wdt_open,
+	.release	= bfin_wdt_release,
+};
+
+static struct miscdevice bfin_wdt_miscdev = {
+	.minor    = WATCHDOG_MINOR,
+	.name     = "watchdog",
+	.fops     = &bfin_wdt_fops,
+};
+
+static struct watchdog_info bfin_wdt_info = {
+	.identity = "Blackfin Watchdog",
+	.options  = WDIOF_SETTIMEOUT |
+		    WDIOF_KEEPALIVEPING |
+		    WDIOF_MAGICCLOSE,
+};
+
+static struct notifier_block bfin_wdt_notifier = {
+	.notifier_call = bfin_wdt_notify_sys,
+};
+
+/**
+ *	bfin_wdt_probe - Initialize module
+ *
+ *	Registers the misc device and notifier handler.  Actual device
+ *	initialization is handled by bfin_wdt_open().
+ */
+static int __devinit bfin_wdt_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = register_reboot_notifier(&bfin_wdt_notifier);
+	if (ret) {
+		pr_devinit(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		return ret;
+	}
+
+	ret = misc_register(&bfin_wdt_miscdev);
+	if (ret) {
+		pr_devinit(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+				WATCHDOG_MINOR, ret);
+		unregister_reboot_notifier(&bfin_wdt_notifier);
+		return ret;
+	}
+
+	pr_devinit(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n",
+	       timeout, nowayout);
+
+	return 0;
+}
+
+/**
+ *	bfin_wdt_remove - Initialize module
+ *
+ *	Unregisters the misc device and notifier handler.  Actual device
+ *	deinitialization is handled by bfin_wdt_close().
+ */
+static int __devexit bfin_wdt_remove(struct platform_device *pdev)
+{
+	misc_deregister(&bfin_wdt_miscdev);
+	unregister_reboot_notifier(&bfin_wdt_notifier);
+	return 0;
+}
+
+static struct platform_device *bfin_wdt_device;
+
+static struct platform_driver bfin_wdt_driver = {
+	.probe     = bfin_wdt_probe,
+	.remove    = __devexit_p(bfin_wdt_remove),
+	.suspend   = bfin_wdt_suspend,
+	.resume    = bfin_wdt_resume,
+	.driver    = {
+		.name  = WATCHDOG_NAME,
+		.owner = THIS_MODULE,
+	},
+};
+
+/**
+ *	bfin_wdt_init - Initialize module
+ *
+ *	Checks the module params and registers the platform device & driver.
+ *	Real work is in the platform probe function.
+ */
+static int __init bfin_wdt_init(void)
+{
+	int ret;
+
+	stampit();
+
+	/* Check that the timeout value is within range */
+	if (bfin_wdt_set_timeout(timeout))
+		return -EINVAL;
+
+	/* Since this is an on-chip device and needs no board-specific
+	 * resources, we'll handle all the platform device stuff here.
+	 */
+	ret = platform_driver_register(&bfin_wdt_driver);
+	if (ret) {
+		pr_init(KERN_ERR PFX "unable to register driver\n");
+		return ret;
+	}
+
+	bfin_wdt_device = platform_device_register_simple(WATCHDOG_NAME, -1, NULL, 0);
+	if (IS_ERR(bfin_wdt_device)) {
+		pr_init(KERN_ERR PFX "unable to register device\n");
+		platform_driver_unregister(&bfin_wdt_driver);
+		return PTR_ERR(bfin_wdt_device);
+	}
+
+	return 0;
+}
+
+/**
+ *	bfin_wdt_exit - Deinitialize module
+ *
+ *	Back out the platform device & driver steps.  Real work is in the
+ *	platform remove function.
+ */
+static void __exit bfin_wdt_exit(void)
+{
+	platform_device_unregister(bfin_wdt_device);
+	platform_driver_unregister(&bfin_wdt_driver);
+}
+
+module_init(bfin_wdt_init);
+module_exit(bfin_wdt_exit);
+
+MODULE_AUTHOR("Michele d'Amico, Mike Frysinger <vapier@gentoo.org>");
+MODULE_DESCRIPTION("Blackfin Watchdog Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(timeout, uint, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default="
+		__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+		__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
new file mode 100644
index 0000000..225398f
--- /dev/null
+++ b/drivers/watchdog/booke_wdt.c
@@ -0,0 +1,191 @@
+/*
+ * Watchdog timer for PowerPC Book-E systems
+ *
+ * Author: Matthew McClintock
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
+ *
+ * Copyright 2005, 2008 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/miscdevice.h>
+#include <linux/notifier.h>
+#include <linux/watchdog.h>
+#include <linux/uaccess.h>
+
+#include <asm/reg_booke.h>
+#include <asm/system.h>
+
+/* If the kernel parameter wdt=1, the watchdog will be enabled at boot.
+ * Also, the wdt_period sets the watchdog timer period timeout.
+ * For E500 cpus the wdt_period sets which bit changing from 0->1 will
+ * trigger a watchog timeout. This watchdog timeout will occur 3 times, the
+ * first time nothing will happen, the second time a watchdog exception will
+ * occur, and the final time the board will reset.
+ */
+
+#ifdef	CONFIG_FSL_BOOKE
+#define WDT_PERIOD_DEFAULT 63	/* Ex. wdt_period=28 bus=333Mhz,reset=~40sec */
+#else
+#define WDT_PERIOD_DEFAULT 3	/* Refer to the PPC40x and PPC4xx manuals */
+#endif				/* for timing information */
+
+u32 booke_wdt_enabled;
+u32 booke_wdt_period = WDT_PERIOD_DEFAULT;
+
+#ifdef	CONFIG_FSL_BOOKE
+#define WDTP(x)		((((63-x)&0x3)<<30)|(((63-x)&0x3c)<<15))
+#define WDTP_MASK	(WDTP(0))
+#else
+#define WDTP(x)		(TCR_WP(x))
+#define WDTP_MASK	(TCR_WP_MASK)
+#endif
+
+static DEFINE_SPINLOCK(booke_wdt_lock);
+
+static void __booke_wdt_ping(void *data)
+{
+	mtspr(SPRN_TSR, TSR_ENW|TSR_WIS);
+}
+
+static void booke_wdt_ping(void)
+{
+	on_each_cpu(__booke_wdt_ping, NULL, 0);
+}
+
+static void __booke_wdt_enable(void *data)
+{
+	u32 val;
+
+	/* clear status before enabling watchdog */
+	__booke_wdt_ping(NULL);
+	val = mfspr(SPRN_TCR);
+	val &= ~WDTP_MASK;
+	val |= (TCR_WIE|TCR_WRC(WRC_CHIP)|WDTP(booke_wdt_period));
+
+	mtspr(SPRN_TCR, val);
+}
+
+static ssize_t booke_wdt_write(struct file *file, const char __user *buf,
+				size_t count, loff_t *ppos)
+{
+	booke_wdt_ping();
+	return count;
+}
+
+static struct watchdog_info ident = {
+	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	.identity = "PowerPC Book-E Watchdog",
+};
+
+static long booke_wdt_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	u32 tmp = 0;
+	u32 __user *p = (u32 __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(arg, &ident, sizeof(struct watchdog_info)))
+			return -EFAULT;
+	case WDIOC_GETSTATUS:
+		return put_user(ident.options, p);
+	case WDIOC_GETBOOTSTATUS:
+		/* XXX: something is clearing TSR */
+		tmp = mfspr(SPRN_TSR) & TSR_WRS(3);
+		/* returns 1 if last reset was caused by the WDT */
+		return (tmp ? 1 : 0);
+	case WDIOC_SETOPTIONS:
+		if (get_user(tmp, p))
+			return -EINVAL;
+		if (tmp == WDIOS_ENABLECARD) {
+			booke_wdt_ping();
+			break;
+		} else
+			return -EINVAL;
+		return 0;
+	case WDIOC_KEEPALIVE:
+		booke_wdt_ping();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(booke_wdt_period, p))
+			return -EFAULT;
+		mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WDTP_MASK) |
+						WDTP(booke_wdt_period));
+		return 0;
+	case WDIOC_GETTIMEOUT:
+		return put_user(booke_wdt_period, p);
+	default:
+		return -ENOTTY;
+	}
+
+	return 0;
+}
+
+static int booke_wdt_open(struct inode *inode, struct file *file)
+{
+	spin_lock(&booke_wdt_lock);
+	if (booke_wdt_enabled == 0) {
+		booke_wdt_enabled = 1;
+		on_each_cpu(__booke_wdt_enable, NULL, 0);
+		printk(KERN_INFO
+		      "PowerPC Book-E Watchdog Timer Enabled (wdt_period=%d)\n",
+				booke_wdt_period);
+	}
+	spin_unlock(&booke_wdt_lock);
+
+	return nonseekable_open(inode, file);
+}
+
+static const struct file_operations booke_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = booke_wdt_write,
+	.unlocked_ioctl = booke_wdt_ioctl,
+	.open = booke_wdt_open,
+};
+
+static struct miscdevice booke_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &booke_wdt_fops,
+};
+
+static void __exit booke_wdt_exit(void)
+{
+	misc_deregister(&booke_wdt_miscdev);
+}
+
+static int __init booke_wdt_init(void)
+{
+	int ret = 0;
+
+	printk(KERN_INFO "PowerPC Book-E Watchdog Timer Loaded\n");
+	ident.firmware_version = cur_cpu_spec->pvr_value;
+
+	ret = misc_register(&booke_wdt_miscdev);
+	if (ret) {
+		printk(KERN_CRIT "Cannot register miscdev on minor=%d: %d\n",
+				WATCHDOG_MINOR, ret);
+		return ret;
+	}
+
+	spin_lock(&booke_wdt_lock);
+	if (booke_wdt_enabled == 1) {
+		printk(KERN_INFO
+		      "PowerPC Book-E Watchdog Timer Enabled (wdt_period=%d)\n",
+				booke_wdt_period);
+		on_each_cpu(__booke_wdt_enable, NULL, 0);
+	}
+	spin_unlock(&booke_wdt_lock);
+
+	return ret;
+}
+device_initcall(booke_wdt_init);
diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
new file mode 100644
index 0000000..71f6d7e
--- /dev/null
+++ b/drivers/watchdog/cpu5wdt.c
@@ -0,0 +1,300 @@
+/*
+ * sma cpu5 watchdog driver
+ *
+ * Copyright (C) 2003 Heiko Ronsdorf <hero@ihg.uni-duisburg.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/watchdog.h>
+
+/* adjustable parameters */
+
+static int verbose;
+static int port = 0x91;
+static int ticks = 10000;
+static spinlock_t cpu5wdt_lock;
+
+#define PFX			"cpu5wdt: "
+
+#define CPU5WDT_EXTENT          0x0A
+
+#define CPU5WDT_STATUS_REG      0x00
+#define CPU5WDT_TIME_A_REG      0x02
+#define CPU5WDT_TIME_B_REG      0x03
+#define CPU5WDT_MODE_REG        0x04
+#define CPU5WDT_TRIGGER_REG     0x07
+#define CPU5WDT_ENABLE_REG      0x08
+#define CPU5WDT_RESET_REG       0x09
+
+#define CPU5WDT_INTERVAL	(HZ/10+1)
+
+/* some device data */
+
+static struct {
+	struct completion stop;
+	int running;
+	struct timer_list timer;
+	int queue;
+	int default_ticks;
+	unsigned long inuse;
+} cpu5wdt_device;
+
+/* generic helper functions */
+
+static void cpu5wdt_trigger(unsigned long unused)
+{
+	if (verbose > 2)
+		printk(KERN_DEBUG PFX "trigger at %i ticks\n", ticks);
+
+	if (cpu5wdt_device.running)
+		ticks--;
+
+	spin_lock(&cpu5wdt_lock);
+	/* keep watchdog alive */
+	outb(1, port + CPU5WDT_TRIGGER_REG);
+
+	/* requeue?? */
+	if (cpu5wdt_device.queue && ticks)
+		mod_timer(&cpu5wdt_device.timer, jiffies + CPU5WDT_INTERVAL);
+	else {
+		/* ticks doesn't matter anyway */
+		complete(&cpu5wdt_device.stop);
+	}
+	spin_unlock(&cpu5wdt_lock);
+
+}
+
+static void cpu5wdt_reset(void)
+{
+	ticks = cpu5wdt_device.default_ticks;
+
+	if (verbose)
+		printk(KERN_DEBUG PFX "reset (%i ticks)\n", (int) ticks);
+
+}
+
+static void cpu5wdt_start(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&cpu5wdt_lock, flags);
+	if (!cpu5wdt_device.queue) {
+		cpu5wdt_device.queue = 1;
+		outb(0, port + CPU5WDT_TIME_A_REG);
+		outb(0, port + CPU5WDT_TIME_B_REG);
+		outb(1, port + CPU5WDT_MODE_REG);
+		outb(0, port + CPU5WDT_RESET_REG);
+		outb(0, port + CPU5WDT_ENABLE_REG);
+		mod_timer(&cpu5wdt_device.timer, jiffies + CPU5WDT_INTERVAL);
+	}
+	/* if process dies, counter is not decremented */
+	cpu5wdt_device.running++;
+	spin_unlock_irqrestore(&cpu5wdt_lock, flags);
+}
+
+static int cpu5wdt_stop(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&cpu5wdt_lock, flags);
+	if (cpu5wdt_device.running)
+		cpu5wdt_device.running = 0;
+	ticks = cpu5wdt_device.default_ticks;
+	spin_unlock_irqrestore(&cpu5wdt_lock, flags);
+	if (verbose)
+		printk(KERN_CRIT PFX "stop not possible\n");
+	return -EIO;
+}
+
+/* filesystem operations */
+
+static int cpu5wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &cpu5wdt_device.inuse))
+		return -EBUSY;
+	return nonseekable_open(inode, file);
+}
+
+static int cpu5wdt_release(struct inode *inode, struct file *file)
+{
+	clear_bit(0, &cpu5wdt_device.inuse);
+	return 0;
+}
+
+static long cpu5wdt_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	unsigned int value;
+	static struct watchdog_info ident = {
+		.options = WDIOF_CARDRESET,
+		.identity = "CPU5 WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSTATUS:
+		value = inb(port + CPU5WDT_STATUS_REG);
+		value = (value >> 2) & 1;
+		return put_user(value, p);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+		if (get_user(value, p))
+			return -EFAULT;
+		if (value & WDIOS_ENABLECARD)
+			cpu5wdt_start();
+		if (value & WDIOS_DISABLECARD)
+			cpu5wdt_stop();
+		break;
+	case WDIOC_KEEPALIVE:
+		cpu5wdt_reset();
+		break;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static ssize_t cpu5wdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (!count)
+		return -EIO;
+	cpu5wdt_reset();
+	return count;
+}
+
+static const struct file_operations cpu5wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl	= cpu5wdt_ioctl,
+	.open		= cpu5wdt_open,
+	.write		= cpu5wdt_write,
+	.release	= cpu5wdt_release,
+};
+
+static struct miscdevice cpu5wdt_misc = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &cpu5wdt_fops,
+};
+
+/* init/exit function */
+
+static int __devinit cpu5wdt_init(void)
+{
+	unsigned int val;
+	int err;
+
+	if (verbose)
+		printk(KERN_DEBUG PFX
+				"port=0x%x, verbose=%i\n", port, verbose);
+
+	init_completion(&cpu5wdt_device.stop);
+	spin_lock_init(&cpu5wdt_lock);
+	cpu5wdt_device.queue = 0;
+	setup_timer(&cpu5wdt_device.timer, cpu5wdt_trigger, 0);
+	cpu5wdt_device.default_ticks = ticks;
+
+	if (!request_region(port, CPU5WDT_EXTENT, PFX)) {
+		printk(KERN_ERR PFX "request_region failed\n");
+		err = -EBUSY;
+		goto no_port;
+	}
+
+	/* watchdog reboot? */
+	val = inb(port + CPU5WDT_STATUS_REG);
+	val = (val >> 2) & 1;
+	if (!val)
+		printk(KERN_INFO PFX "sorry, was my fault\n");
+
+	err = misc_register(&cpu5wdt_misc);
+	if (err < 0) {
+		printk(KERN_ERR PFX "misc_register failed\n");
+		goto no_misc;
+	}
+
+
+	printk(KERN_INFO PFX "init success\n");
+	return 0;
+
+no_misc:
+	release_region(port, CPU5WDT_EXTENT);
+no_port:
+	return err;
+}
+
+static int __devinit cpu5wdt_init_module(void)
+{
+	return cpu5wdt_init();
+}
+
+static void __devexit cpu5wdt_exit(void)
+{
+	if (cpu5wdt_device.queue) {
+		cpu5wdt_device.queue = 0;
+		wait_for_completion(&cpu5wdt_device.stop);
+	}
+
+	misc_deregister(&cpu5wdt_misc);
+
+	release_region(port, CPU5WDT_EXTENT);
+
+}
+
+static void __devexit cpu5wdt_exit_module(void)
+{
+	cpu5wdt_exit();
+}
+
+/* module entry points */
+
+module_init(cpu5wdt_init_module);
+module_exit(cpu5wdt_exit_module);
+
+MODULE_AUTHOR("Heiko Ronsdorf <hero@ihg.uni-duisburg.de>");
+MODULE_DESCRIPTION("sma cpu5 watchdog driver");
+MODULE_SUPPORTED_DEVICE("sma cpu5 watchdog");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(port, int, 0);
+MODULE_PARM_DESC(port, "base address of watchdog card, default is 0x91");
+
+module_param(verbose, int, 0);
+MODULE_PARM_DESC(verbose, "be verbose, default is 0 (no)");
+
+module_param(ticks, int, 0);
+MODULE_PARM_DESC(ticks, "count down ticks, default is 10000");
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
new file mode 100644
index 0000000..084dfe9
--- /dev/null
+++ b/drivers/watchdog/cpwd.c
@@ -0,0 +1,695 @@
+/* cpwd.c - driver implementation for hardware watchdog
+ * timers found on Sun Microsystems CP1400 and CP1500 boards.
+ *
+ * This device supports both the generic Linux watchdog 
+ * interface and Solaris-compatible ioctls as best it is
+ * able.
+ *
+ * NOTE: 	CP1400 systems appear to have a defective intr_mask
+ * 			register on the PLD, preventing the disabling of
+ * 			timer interrupts.  We use a timer to periodically 
+ * 			reset 'stopped' watchdogs on affected platforms.
+ *
+ * Copyright (c) 2000 Eric Brower (ebrower@usa.net)
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/errno.h>
+#include <linux/major.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/smp_lock.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include <asm/watchdog.h>
+
+#define DRIVER_NAME	"cpwd"
+#define PFX		DRIVER_NAME ": "
+
+#define WD_OBPNAME	"watchdog"
+#define WD_BADMODEL	"SUNW,501-5336"
+#define WD_BTIMEOUT	(jiffies + (HZ * 1000))
+#define WD_BLIMIT	0xFFFF
+
+#define WD0_MINOR	212
+#define WD1_MINOR	213	
+#define WD2_MINOR	214	
+
+/* Internal driver definitions.  */
+#define WD0_ID			0
+#define WD1_ID			1
+#define WD2_ID			2
+#define WD_NUMDEVS		3
+
+#define WD_INTR_OFF		0
+#define WD_INTR_ON		1
+
+#define WD_STAT_INIT	0x01	/* Watchdog timer is initialized	*/
+#define WD_STAT_BSTOP	0x02	/* Watchdog timer is brokenstopped	*/
+#define WD_STAT_SVCD	0x04	/* Watchdog interrupt occurred		*/
+
+/* Register value definitions
+ */
+#define WD0_INTR_MASK	0x01	/* Watchdog device interrupt masks	*/
+#define WD1_INTR_MASK	0x02
+#define WD2_INTR_MASK	0x04
+
+#define WD_S_RUNNING	0x01	/* Watchdog device status running	*/
+#define WD_S_EXPIRED	0x02	/* Watchdog device status expired	*/
+
+struct cpwd {
+	void __iomem	*regs;
+	spinlock_t	lock;
+
+	unsigned int	irq;
+
+	unsigned long	timeout;
+	bool		enabled;
+	bool		reboot;
+	bool		broken;
+	bool		initialized;
+
+	struct {
+		struct miscdevice	misc;
+		void __iomem		*regs;
+		u8			intr_mask;
+		u8			runstatus;
+		u16			timeout;
+	} devs[WD_NUMDEVS];
+};
+
+static struct cpwd *cpwd_device;
+
+/* Sun uses Altera PLD EPF8820ATC144-4 
+ * providing three hardware watchdogs:
+ *
+ * 	1) RIC - sends an interrupt when triggered
+ * 	2) XIR - asserts XIR_B_RESET when triggered, resets CPU
+ * 	3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board
+ *
+ *** Timer register block definition (struct wd_timer_regblk)
+ *
+ * dcntr and limit registers (halfword access):      
+ * -------------------
+ * | 15 | ...| 1 | 0 |
+ * -------------------
+ * |-  counter val  -|
+ * -------------------
+ * dcntr - 	Current 16-bit downcounter value.
+ * 			When downcounter reaches '0' watchdog expires.
+ * 			Reading this register resets downcounter with 'limit' value.
+ * limit - 	16-bit countdown value in 1/10th second increments.
+ * 			Writing this register begins countdown with input value.
+ * 			Reading from this register does not affect counter.
+ * NOTES:	After watchdog reset, dcntr and limit contain '1'
+ *
+ * status register (byte access):
+ * ---------------------------
+ * | 7 | ... | 2 |  1  |  0  |
+ * --------------+------------
+ * |-   UNUSED  -| EXP | RUN |
+ * ---------------------------
+ * status-	Bit 0 - Watchdog is running
+ * 			Bit 1 - Watchdog has expired
+ *
+ *** PLD register block definition (struct wd_pld_regblk)
+ *
+ * intr_mask register (byte access):
+ * ---------------------------------
+ * | 7 | ... | 3 |  2  |  1  |  0  |
+ * +-------------+------------------
+ * |-   UNUSED  -| WD3 | WD2 | WD1 |
+ * ---------------------------------
+ * WD3 -  1 == Interrupt disabled for watchdog 3
+ * WD2 -  1 == Interrupt disabled for watchdog 2
+ * WD1 -  1 == Interrupt disabled for watchdog 1
+ *
+ * pld_status register (byte access):
+ * UNKNOWN, MAGICAL MYSTERY REGISTER
+ *
+ */
+#define WD_TIMER_REGSZ	16
+#define WD0_OFF		0
+#define WD1_OFF		(WD_TIMER_REGSZ * 1)
+#define WD2_OFF		(WD_TIMER_REGSZ * 2)
+#define PLD_OFF		(WD_TIMER_REGSZ * 3)
+
+#define WD_DCNTR	0x00
+#define WD_LIMIT	0x04
+#define WD_STATUS	0x08
+
+#define PLD_IMASK	(PLD_OFF + 0x00)
+#define PLD_STATUS	(PLD_OFF + 0x04)
+
+static struct timer_list cpwd_timer;
+
+static int wd0_timeout = 0;
+static int wd1_timeout = 0;
+static int wd2_timeout = 0;
+
+module_param	(wd0_timeout, int, 0);
+MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs");
+module_param 	(wd1_timeout, int, 0);
+MODULE_PARM_DESC(wd1_timeout, "Default watchdog1 timeout in 1/10secs");
+module_param 	(wd2_timeout, int, 0);
+MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs");
+
+MODULE_AUTHOR("Eric Brower <ebrower@usa.net>");
+MODULE_DESCRIPTION("Hardware watchdog driver for Sun Microsystems CP1400/1500");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("watchdog");
+
+static void cpwd_writew(u16 val, void __iomem *addr)
+{
+	writew(cpu_to_le16(val), addr);
+}
+static u16 cpwd_readw(void __iomem *addr)
+{
+	u16 val = readw(addr);
+
+	return le16_to_cpu(val);
+}
+
+static void cpwd_writeb(u8 val, void __iomem *addr)
+{
+	writeb(val, addr);
+}
+
+static u8 cpwd_readb(void __iomem *addr)
+{
+	return readb(addr);
+}
+
+/* Enable or disable watchdog interrupts
+ * Because of the CP1400 defect this should only be
+ * called during initialzation or by wd_[start|stop]timer()
+ *
+ * index 	- sub-device index, or -1 for 'all'
+ * enable	- non-zero to enable interrupts, zero to disable
+ */
+static void cpwd_toggleintr(struct cpwd *p, int index, int enable)
+{
+	unsigned char curregs = cpwd_readb(p->regs + PLD_IMASK);
+	unsigned char setregs = 
+		(index == -1) ? 
+		(WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) : 
+		(p->devs[index].intr_mask);
+
+	if (enable == WD_INTR_ON)
+		curregs &= ~setregs;
+	else
+		curregs |= setregs;
+
+	cpwd_writeb(curregs, p->regs + PLD_IMASK);
+}
+
+/* Restarts timer with maximum limit value and
+ * does not unset 'brokenstop' value.
+ */
+static void cpwd_resetbrokentimer(struct cpwd *p, int index)
+{
+	cpwd_toggleintr(p, index, WD_INTR_ON);
+	cpwd_writew(WD_BLIMIT, p->devs[index].regs + WD_LIMIT);
+}
+
+/* Timer method called to reset stopped watchdogs--
+ * because of the PLD bug on CP1400, we cannot mask
+ * interrupts within the PLD so me must continually
+ * reset the timers ad infinitum.
+ */
+static void cpwd_brokentimer(unsigned long data)
+{
+	struct cpwd *p = (struct cpwd *) data;
+	int id, tripped = 0;
+
+	/* kill a running timer instance, in case we
+	 * were called directly instead of by kernel timer
+	 */
+	if (timer_pending(&cpwd_timer))
+		del_timer(&cpwd_timer);
+
+	for (id = 0; id < WD_NUMDEVS; id++) {
+		if (p->devs[id].runstatus & WD_STAT_BSTOP) {
+			++tripped;
+			cpwd_resetbrokentimer(p, id);
+		}
+	}
+
+	if (tripped) {
+		/* there is at least one timer brokenstopped-- reschedule */
+		cpwd_timer.expires = WD_BTIMEOUT;
+		add_timer(&cpwd_timer);
+	}
+}
+
+/* Reset countdown timer with 'limit' value and continue countdown.
+ * This will not start a stopped timer.
+ */
+static void cpwd_pingtimer(struct cpwd *p, int index)
+{
+	if (cpwd_readb(p->devs[index].regs + WD_STATUS) & WD_S_RUNNING)
+		cpwd_readw(p->devs[index].regs + WD_DCNTR);
+}
+
+/* Stop a running watchdog timer-- the timer actually keeps
+ * running, but the interrupt is masked so that no action is
+ * taken upon expiration.
+ */
+static void cpwd_stoptimer(struct cpwd *p, int index)
+{
+	if (cpwd_readb(p->devs[index].regs + WD_STATUS) & WD_S_RUNNING) {
+		cpwd_toggleintr(p, index, WD_INTR_OFF);
+
+		if (p->broken) {
+			p->devs[index].runstatus |= WD_STAT_BSTOP;
+			cpwd_brokentimer((unsigned long) p);
+		}
+	}
+}
+
+/* Start a watchdog timer with the specified limit value
+ * If the watchdog is running, it will be restarted with
+ * the provided limit value.
+ *
+ * This function will enable interrupts on the specified
+ * watchdog.
+ */
+static void cpwd_starttimer(struct cpwd *p, int index)
+{
+	if (p->broken)
+		p->devs[index].runstatus &= ~WD_STAT_BSTOP;
+
+	p->devs[index].runstatus &= ~WD_STAT_SVCD;
+
+	cpwd_writew(p->devs[index].timeout, p->devs[index].regs + WD_LIMIT);
+	cpwd_toggleintr(p, index, WD_INTR_ON);
+}
+
+static int cpwd_getstatus(struct cpwd *p, int index)
+{
+	unsigned char stat = cpwd_readb(p->devs[index].regs + WD_STATUS);
+	unsigned char intr = cpwd_readb(p->devs[index].regs + PLD_IMASK);
+	unsigned char ret  = WD_STOPPED;
+
+	/* determine STOPPED */
+	if (!stat) 
+		return ret;
+
+	/* determine EXPIRED vs FREERUN vs RUNNING */
+	else if (WD_S_EXPIRED & stat) {
+		ret = WD_EXPIRED;
+	} else if(WD_S_RUNNING & stat) {
+		if (intr & p->devs[index].intr_mask) {
+			ret = WD_FREERUN;
+		} else {
+			/* Fudge WD_EXPIRED status for defective CP1400--
+			 * IF timer is running 
+			 * 	AND brokenstop is set 
+			 * 	AND an interrupt has been serviced
+			 * we are WD_EXPIRED.
+			 *
+			 * IF timer is running 
+			 * 	AND brokenstop is set 
+			 * 	AND no interrupt has been serviced
+			 * we are WD_FREERUN.
+			 */
+			if (p->broken &&
+			    (p->devs[index].runstatus & WD_STAT_BSTOP)) {
+				if (p->devs[index].runstatus & WD_STAT_SVCD) {
+					ret = WD_EXPIRED;
+				} else {
+					/* we could as well pretend we are expired */
+					ret = WD_FREERUN;
+				}
+			} else {
+				ret = WD_RUNNING;
+			}
+		}
+	}
+
+	/* determine SERVICED */
+	if (p->devs[index].runstatus & WD_STAT_SVCD)
+		ret |= WD_SERVICED;
+
+	return(ret);
+}
+
+static irqreturn_t cpwd_interrupt(int irq, void *dev_id)
+{
+	struct cpwd *p = dev_id;
+
+	/* Only WD0 will interrupt-- others are NMI and we won't
+	 * see them here....
+	 */
+	spin_lock_irq(&p->lock);
+
+	cpwd_stoptimer(p, WD0_ID);
+	p->devs[WD0_ID].runstatus |=  WD_STAT_SVCD;
+
+	spin_unlock_irq(&p->lock);
+
+	return IRQ_HANDLED;
+}
+
+static int cpwd_open(struct inode *inode, struct file *f)
+{
+	struct cpwd *p = cpwd_device;
+
+	lock_kernel();
+	switch(iminor(inode)) {
+		case WD0_MINOR:
+		case WD1_MINOR:
+		case WD2_MINOR:
+			break;
+
+		default:
+			unlock_kernel();
+			return -ENODEV;
+	}
+
+	/* Register IRQ on first open of device */
+	if (!p->initialized) {
+		if (request_irq(p->irq, &cpwd_interrupt, 
+				IRQF_SHARED, DRIVER_NAME, p)) {
+			printk(KERN_ERR PFX "Cannot register IRQ %d\n", 
+				p->irq);
+			unlock_kernel();
+			return -EBUSY;
+		}
+		p->initialized = true;
+	}
+
+	unlock_kernel();
+
+	return nonseekable_open(inode, f);
+}
+
+static int cpwd_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+static int cpwd_ioctl(struct inode *inode, struct file *file, 
+		      unsigned int cmd, unsigned long arg)
+{
+	static struct watchdog_info info = {
+		.options		= WDIOF_SETTIMEOUT,
+		.firmware_version	= 1,
+		.identity		= DRIVER_NAME,
+	};
+	void __user *argp = (void __user *)arg;
+	int index = iminor(inode) - WD0_MINOR;
+	struct cpwd *p = cpwd_device;
+	int setopt = 0;
+
+	switch (cmd) {
+	/* Generic Linux IOCTLs */
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &info, sizeof(struct watchdog_info)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		if (put_user(0, (int __user *)argp))
+			return -EFAULT;
+		break;
+
+	case WDIOC_KEEPALIVE:
+		cpwd_pingtimer(p, index);
+		break;
+
+	case WDIOC_SETOPTIONS:
+		if (copy_from_user(&setopt, argp, sizeof(unsigned int)))
+			return -EFAULT;
+
+		if (setopt & WDIOS_DISABLECARD) {
+			if (p->enabled)
+				return -EINVAL;
+			cpwd_stoptimer(p, index);
+		} else if (setopt & WDIOS_ENABLECARD) {
+			cpwd_starttimer(p, index);
+		} else {
+			return -EINVAL;
+		}	
+		break;
+
+	/* Solaris-compatible IOCTLs */
+	case WIOCGSTAT:
+		setopt = cpwd_getstatus(p, index);
+		if (copy_to_user(argp, &setopt, sizeof(unsigned int)))
+			return -EFAULT;
+		break;
+
+	case WIOCSTART:
+		cpwd_starttimer(p, index);
+		break;
+
+	case WIOCSTOP:
+		if (p->enabled)
+			return(-EINVAL);
+
+		cpwd_stoptimer(p, index);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static long cpwd_compat_ioctl(struct file *file, unsigned int cmd,
+			      unsigned long arg)
+{
+	int rval = -ENOIOCTLCMD;
+
+	switch (cmd) {
+	/* solaris ioctls are specific to this driver */
+	case WIOCSTART:
+	case WIOCSTOP:
+	case WIOCGSTAT:
+		lock_kernel();
+		rval = cpwd_ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
+		unlock_kernel();
+		break;
+
+	/* everything else is handled by the generic compat layer */
+	default:
+		break;
+	}
+
+	return rval;
+}
+
+static ssize_t cpwd_write(struct file *file, const char __user *buf, 
+			  size_t count, loff_t *ppos)
+{
+	struct inode *inode = file->f_path.dentry->d_inode;
+	struct cpwd *p = cpwd_device;
+	int index = iminor(inode);
+
+	if (count) {
+		cpwd_pingtimer(p, index);
+		return 1;
+	}
+
+	return 0;
+}
+
+static ssize_t cpwd_read(struct file * file, char __user *buffer,
+			 size_t count, loff_t *ppos)
+{
+	return -EINVAL;
+}
+
+static const struct file_operations cpwd_fops = {
+	.owner =	THIS_MODULE,
+	.ioctl =	cpwd_ioctl,
+	.compat_ioctl =	cpwd_compat_ioctl,
+	.open =		cpwd_open,
+	.write =	cpwd_write,
+	.read =		cpwd_read,
+	.release =	cpwd_release,
+};
+
+static int __devinit cpwd_probe(struct of_device *op,
+				const struct of_device_id *match)
+{
+	struct device_node *options;
+	const char *str_prop;
+	const void *prop_val;
+	int i, err = -EINVAL;
+	struct cpwd *p;
+
+	if (cpwd_device)
+		return -EINVAL;
+
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	err = -ENOMEM;
+	if (!p) {
+		printk(KERN_ERR PFX "Unable to allocate struct cpwd.\n");
+		goto out;
+	}
+
+	p->irq = op->irqs[0];
+
+	spin_lock_init(&p->lock);
+
+	p->regs = of_ioremap(&op->resource[0], 0,
+			     4 * WD_TIMER_REGSZ, DRIVER_NAME);
+	if (!p->regs) {
+		printk(KERN_ERR PFX "Unable to map registers.\n");
+		goto out_free;
+	}
+
+	options = of_find_node_by_path("/options");
+	err = -ENODEV;
+	if (!options) {
+		printk(KERN_ERR PFX "Unable to find /options node.\n");
+		goto out_iounmap;
+	}
+
+	prop_val = of_get_property(options, "watchdog-enable?", NULL);
+	p->enabled = (prop_val ? true : false);
+
+	prop_val = of_get_property(options, "watchdog-reboot?", NULL);
+	p->reboot = (prop_val ? true : false);
+
+	str_prop = of_get_property(options, "watchdog-timeout", NULL);
+	if (str_prop)
+		p->timeout = simple_strtoul(str_prop, NULL, 10);
+
+	/* CP1400s seem to have broken PLD implementations-- the
+	 * interrupt_mask register cannot be written, so no timer
+	 * interrupts can be masked within the PLD.
+	 */
+	str_prop = of_get_property(op->node, "model", NULL);
+	p->broken = (str_prop && !strcmp(str_prop, WD_BADMODEL));
+
+	if (!p->enabled)
+		cpwd_toggleintr(p, -1, WD_INTR_OFF);
+
+	for (i = 0; i < WD_NUMDEVS; i++) {
+		static const char *cpwd_names[] = { "RIC", "XIR", "POR" };
+		static int *parms[] = { &wd0_timeout,
+					&wd1_timeout,
+					&wd2_timeout };
+		struct miscdevice *mp = &p->devs[i].misc;
+
+		mp->minor = WD0_MINOR + i;
+		mp->name = cpwd_names[i];
+		mp->fops = &cpwd_fops;
+
+		p->devs[i].regs = p->regs + (i * WD_TIMER_REGSZ);
+		p->devs[i].intr_mask = (WD0_INTR_MASK << i);
+		p->devs[i].runstatus &= ~WD_STAT_BSTOP;
+		p->devs[i].runstatus |= WD_STAT_INIT;
+		p->devs[i].timeout = p->timeout;
+		if (*parms[i])
+			p->devs[i].timeout = *parms[i];
+
+		err = misc_register(&p->devs[i].misc);
+		if (err) {
+			printk(KERN_ERR "Could not register misc device for "
+			       "dev %d\n", i);
+			goto out_unregister;
+		}
+	}
+
+	if (p->broken) {
+		init_timer(&cpwd_timer);
+		cpwd_timer.function 	= cpwd_brokentimer;
+		cpwd_timer.data		= (unsigned long) p;
+		cpwd_timer.expires	= WD_BTIMEOUT;
+
+		printk(KERN_INFO PFX "PLD defect workaround enabled for "
+		       "model " WD_BADMODEL ".\n");
+	}
+
+	dev_set_drvdata(&op->dev, p);
+	cpwd_device = p;
+	err = 0;
+
+out:
+	return err;
+
+out_unregister:
+	for (i--; i >= 0; i--)
+		misc_deregister(&p->devs[i].misc);
+
+out_iounmap:
+	of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ);
+
+out_free:
+	kfree(p);
+	goto out;
+}
+
+static int __devexit cpwd_remove(struct of_device *op)
+{
+	struct cpwd *p = dev_get_drvdata(&op->dev);
+	int i;
+
+	for (i = 0; i < 4; i++) {
+		misc_deregister(&p->devs[i].misc);
+
+		if (!p->enabled) {
+			cpwd_stoptimer(p, i);
+			if (p->devs[i].runstatus & WD_STAT_BSTOP)
+				cpwd_resetbrokentimer(p, i);
+		}
+	}
+
+	if (p->broken)
+		del_timer_sync(&cpwd_timer);
+
+	if (p->initialized)
+		free_irq(p->irq, p);
+
+	of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ);
+	kfree(p);
+
+	cpwd_device = NULL;
+
+	return 0;
+}
+
+static const struct of_device_id cpwd_match[] = {
+	{
+		.name = "watchdog",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, cpwd_match);
+
+static struct of_platform_driver cpwd_driver = {
+	.name		= DRIVER_NAME,
+	.match_table	= cpwd_match,
+	.probe		= cpwd_probe,
+	.remove		= __devexit_p(cpwd_remove),
+};
+
+static int __init cpwd_init(void)
+{
+	return of_register_driver(&cpwd_driver, &of_bus_type);
+}
+
+static void __exit cpwd_exit(void)
+{
+	of_unregister_driver(&cpwd_driver);
+}
+
+module_init(cpwd_init);
+module_exit(cpwd_exit);
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
new file mode 100644
index 0000000..2e13602
--- /dev/null
+++ b/drivers/watchdog/davinci_wdt.c
@@ -0,0 +1,279 @@
+/*
+ * drivers/char/watchdog/davinci_wdt.c
+ *
+ * Watchdog driver for DaVinci DM644x/DM646x processors
+ *
+ * Copyright (C) 2006 Texas Instruments.
+ *
+ * 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+
+#define MODULE_NAME "DAVINCI-WDT: "
+
+#define DEFAULT_HEARTBEAT 60
+#define MAX_HEARTBEAT     600	/* really the max margin is 264/27MHz*/
+
+/* Timer register set definition */
+#define PID12	(0x0)
+#define EMUMGT	(0x4)
+#define TIM12	(0x10)
+#define TIM34	(0x14)
+#define PRD12	(0x18)
+#define PRD34	(0x1C)
+#define TCR	(0x20)
+#define TGCR	(0x24)
+#define WDTCR	(0x28)
+
+/* TCR bit definitions */
+#define ENAMODE12_DISABLED	(0 << 6)
+#define ENAMODE12_ONESHOT	(1 << 6)
+#define ENAMODE12_PERIODIC	(2 << 6)
+
+/* TGCR bit definitions */
+#define TIM12RS_UNRESET		(1 << 0)
+#define TIM34RS_UNRESET		(1 << 1)
+#define TIMMODE_64BIT_WDOG      (2 << 2)
+
+/* WDTCR bit definitions */
+#define WDEN			(1 << 14)
+#define WDFLAG			(1 << 15)
+#define WDKEY_SEQ0		(0xa5c6 << 16)
+#define WDKEY_SEQ1		(0xda7e << 16)
+
+static int heartbeat = DEFAULT_HEARTBEAT;
+
+static DEFINE_SPINLOCK(io_lock);
+static unsigned long wdt_status;
+#define WDT_IN_USE        0
+#define WDT_OK_TO_CLOSE   1
+#define WDT_REGION_INITED 2
+#define WDT_DEVICE_INITED 3
+
+static struct resource	*wdt_mem;
+static void __iomem	*wdt_base;
+
+static void wdt_service(void)
+{
+	spin_lock(&io_lock);
+
+	/* put watchdog in service state */
+	davinci_writel(WDKEY_SEQ0, wdt_base + WDTCR);
+	/* put watchdog in active state */
+	davinci_writel(WDKEY_SEQ1, wdt_base + WDTCR);
+
+	spin_unlock(&io_lock);
+}
+
+static void wdt_enable(void)
+{
+	u32 tgcr;
+	u32 timer_margin;
+
+	spin_lock(&io_lock);
+
+	/* disable, internal clock source */
+	davinci_writel(0, wdt_base + TCR);
+	/* reset timer, set mode to 64-bit watchdog, and unreset */
+	davinci_writel(0, wdt_base + TGCR);
+	tgcr = TIMMODE_64BIT_WDOG | TIM12RS_UNRESET | TIM34RS_UNRESET;
+	davinci_writel(tgcr, wdt_base + TGCR);
+	/* clear counter regs */
+	davinci_writel(0, wdt_base + TIM12);
+	davinci_writel(0, wdt_base + TIM34);
+	/* set timeout period */
+	timer_margin = (((u64)heartbeat * CLOCK_TICK_RATE) & 0xffffffff);
+	davinci_writel(timer_margin, wdt_base + PRD12);
+	timer_margin = (((u64)heartbeat * CLOCK_TICK_RATE) >> 32);
+	davinci_writel(timer_margin, wdt_base + PRD34);
+	/* enable run continuously */
+	davinci_writel(ENAMODE12_PERIODIC, wdt_base + TCR);
+	/* Once the WDT is in pre-active state write to
+	 * TIM12, TIM34, PRD12, PRD34, TCR, TGCR, WDTCR are
+	 * write protected (except for the WDKEY field)
+	 */
+	/* put watchdog in pre-active state */
+	davinci_writel(WDKEY_SEQ0 | WDEN, wdt_base + WDTCR);
+	/* put watchdog in active state */
+	davinci_writel(WDKEY_SEQ1 | WDEN, wdt_base + WDTCR);
+
+	spin_unlock(&io_lock);
+}
+
+static int davinci_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+
+	wdt_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t
+davinci_wdt_write(struct file *file, const char *data, size_t len,
+		  loff_t *ppos)
+{
+	if (len)
+		wdt_service();
+
+	return len;
+}
+
+static struct watchdog_info ident = {
+	.options = WDIOF_KEEPALIVEPING,
+	.identity = "DaVinci Watchdog",
+};
+
+static long davinci_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	int ret = -ENOTTY;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user((struct watchdog_info *)arg, &ident,
+				   sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, (int *)arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_service();
+		ret = 0;
+		break;
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(heartbeat, (int *)arg);
+		break;
+	}
+	return ret;
+}
+
+static int davinci_wdt_release(struct inode *inode, struct file *file)
+{
+	wdt_service();
+	clear_bit(WDT_IN_USE, &wdt_status);
+
+	return 0;
+}
+
+static const struct file_operations davinci_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = davinci_wdt_write,
+	.unlocked_ioctl = davinci_wdt_ioctl,
+	.open = davinci_wdt_open,
+	.release = davinci_wdt_release,
+};
+
+static struct miscdevice davinci_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &davinci_wdt_fops,
+};
+
+static int davinci_wdt_probe(struct platform_device *pdev)
+{
+	int ret = 0, size;
+	struct resource *res;
+
+	if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
+		heartbeat = DEFAULT_HEARTBEAT;
+
+	printk(KERN_INFO MODULE_NAME
+		"DaVinci Watchdog Timer: heartbeat %d sec\n", heartbeat);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		printk(KERN_INFO MODULE_NAME
+			"failed to get memory region resource\n");
+		return -ENOENT;
+	}
+
+	size = res->end - res->start + 1;
+	wdt_mem = request_mem_region(res->start, size, pdev->name);
+
+	if (wdt_mem == NULL) {
+		printk(KERN_INFO MODULE_NAME "failed to get memory region\n");
+		return -ENOENT;
+	}
+	wdt_base = (void __iomem *)(res->start);
+
+	ret = misc_register(&davinci_wdt_miscdev);
+	if (ret < 0) {
+		printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
+		release_resource(wdt_mem);
+		kfree(wdt_mem);
+	} else {
+		set_bit(WDT_DEVICE_INITED, &wdt_status);
+	}
+
+	return ret;
+}
+
+static int davinci_wdt_remove(struct platform_device *pdev)
+{
+	misc_deregister(&davinci_wdt_miscdev);
+	if (wdt_mem) {
+		release_resource(wdt_mem);
+		kfree(wdt_mem);
+		wdt_mem = NULL;
+	}
+	return 0;
+}
+
+static struct platform_driver platform_wdt_driver = {
+	.driver = {
+		.name = "watchdog",
+		.owner	= THIS_MODULE,
+	},
+	.probe = davinci_wdt_probe,
+	.remove = davinci_wdt_remove,
+};
+
+static int __init davinci_wdt_init(void)
+{
+	return platform_driver_register(&platform_wdt_driver);
+}
+
+static void __exit davinci_wdt_exit(void)
+{
+	platform_driver_unregister(&platform_wdt_driver);
+}
+
+module_init(davinci_wdt_init);
+module_exit(davinci_wdt_exit);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("DaVinci Watchdog Driver");
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+		 "Watchdog heartbeat period in seconds from 1 to "
+		 __MODULE_STRING(MAX_HEARTBEAT) ", default "
+		 __MODULE_STRING(DEFAULT_HEARTBEAT));
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:watchdog");
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
new file mode 100644
index 0000000..e9f950f
--- /dev/null
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -0,0 +1,253 @@
+/*
+ * Watchdog driver for Cirrus Logic EP93xx family of devices.
+ *
+ * Copyright (c) 2004 Ray Lehtiniemi
+ * Copyright (c) 2006 Tower Technologies
+ * Based on ep93xx driver, bits from alim7101_wdt.c
+ *
+ * Authors: Ray Lehtiniemi <rayl@mail.com>,
+ *	Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * This watchdog fires after 250msec, which is a too short interval
+ * for us to rely on the user space daemon alone. So we ping the
+ * wdt each ~200msec and eventually stop doing it if the user space
+ * daemon dies.
+ *
+ * TODO:
+ *
+ *	- Test last reset from watchdog status
+ *	- Add a few missing ioctls
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/timer.h>
+#include <linux/uaccess.h>
+#include <mach/hardware.h>
+
+#define WDT_VERSION	"0.3"
+#define PFX		"ep93xx_wdt: "
+
+/* default timeout (secs) */
+#define WDT_TIMEOUT 30
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+static int timeout = WDT_TIMEOUT;
+
+static struct timer_list timer;
+static unsigned long next_heartbeat;
+static unsigned long wdt_status;
+static unsigned long boot_status;
+
+#define WDT_IN_USE		0
+#define WDT_OK_TO_CLOSE		1
+
+#define EP93XX_WDT_REG(x)	(EP93XX_WATCHDOG_BASE + (x))
+#define EP93XX_WDT_WATCHDOG	EP93XX_WDT_REG(0x00)
+#define EP93XX_WDT_WDSTATUS	EP93XX_WDT_REG(0x04)
+
+/* reset the wdt every ~200ms */
+#define WDT_INTERVAL (HZ/5)
+
+static void wdt_enable(void)
+{
+	__raw_writew(0xaaaa, EP93XX_WDT_WATCHDOG);
+}
+
+static void wdt_disable(void)
+{
+	__raw_writew(0xaa55, EP93XX_WDT_WATCHDOG);
+}
+
+static inline void wdt_ping(void)
+{
+	__raw_writew(0x5555, EP93XX_WDT_WATCHDOG);
+}
+
+static void wdt_startup(void)
+{
+	next_heartbeat = jiffies + (timeout * HZ);
+
+	wdt_enable();
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+}
+
+static void wdt_shutdown(void)
+{
+	del_timer_sync(&timer);
+	wdt_disable();
+}
+
+static void wdt_keepalive(void)
+{
+	/* user land ping */
+	next_heartbeat = jiffies + (timeout * HZ);
+}
+
+static int ep93xx_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	wdt_startup();
+
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t
+ep93xx_wdt_write(struct file *file, const char __user *data, size_t len,
+		 loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+				else
+					clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			}
+		}
+		wdt_keepalive();
+	}
+
+	return len;
+}
+
+static struct watchdog_info ident = {
+	.options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE,
+	.identity = "EP93xx Watchdog",
+};
+
+static long ep93xx_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	int ret = -ENOTTY;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user((struct watchdog_info __user *)arg, &ident,
+				sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, (int __user *)arg);
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(boot_status, (int __user *)arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		ret = 0;
+		break;
+
+	case WDIOC_GETTIMEOUT:
+		/* actually, it is 0.250 seconds.... */
+		ret = put_user(1, (int __user *)arg);
+		break;
+	}
+	return ret;
+}
+
+static int ep93xx_wdt_release(struct inode *inode, struct file *file)
+{
+	if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+		wdt_shutdown();
+	else
+		printk(KERN_CRIT PFX
+			"Device closed unexpectedly - timer will not stop\n");
+
+	clear_bit(WDT_IN_USE, &wdt_status);
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	return 0;
+}
+
+static const struct file_operations ep93xx_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.write		= ep93xx_wdt_write,
+	.unlocked_ioctl	= ep93xx_wdt_ioctl,
+	.open		= ep93xx_wdt_open,
+	.release	= ep93xx_wdt_release,
+};
+
+static struct miscdevice ep93xx_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &ep93xx_wdt_fops,
+};
+
+static void ep93xx_timer_ping(unsigned long data)
+{
+	if (time_before(jiffies, next_heartbeat))
+		wdt_ping();
+
+	/* Re-set the timer interval */
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+}
+
+static int __init ep93xx_wdt_init(void)
+{
+	int err;
+
+	err = misc_register(&ep93xx_wdt_miscdev);
+
+	boot_status = __raw_readl(EP93XX_WDT_WATCHDOG) & 0x01 ? 1 : 0;
+
+	printk(KERN_INFO PFX "EP93XX watchdog, driver version "
+		WDT_VERSION "%s\n",
+		(__raw_readl(EP93XX_WDT_WATCHDOG) & 0x08)
+		? " (nCS1 disable detected)" : "");
+
+	if (timeout < 1 || timeout > 3600) {
+		timeout = WDT_TIMEOUT;
+		printk(KERN_INFO PFX
+			"timeout value must be 1<=x<=3600, using %d\n",
+			timeout);
+	}
+
+	setup_timer(&timer, ep93xx_timer_ping, 1);
+	return err;
+}
+
+static void __exit ep93xx_wdt_exit(void)
+{
+	wdt_shutdown();
+	misc_deregister(&ep93xx_wdt_miscdev);
+}
+
+module_init(ep93xx_wdt_init);
+module_exit(ep93xx_wdt_exit);
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. (1<=timeout<=3600, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+MODULE_AUTHOR("Ray Lehtiniemi <rayl@mail.com>,"
+		"Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("EP93xx Watchdog");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(WDT_VERSION);
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c
new file mode 100644
index 0000000..a171fc6
--- /dev/null
+++ b/drivers/watchdog/eurotechwdt.c
@@ -0,0 +1,486 @@
+/*
+ *	Eurotech CPU-1220/1410/1420 on board WDT driver
+ *
+ *	(c) Copyright 2001 Ascensit <support@ascensit.com>
+ *	(c) Copyright 2001 Rodolfo Giometti <giometti@ascensit.com>
+ *	(c) Copyright 2002 Rob Radez <rob@osinvestor.com>
+ *
+ *	Based on wdt.c.
+ *	Original copyright messages:
+ *
+ *      (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *      warranty for any of this software. This material is provided
+ *      "AS-IS" and at no charge.
+ *
+ *      (c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>*
+ */
+
+/* Changelog:
+ *
+ * 2001 - Rodolfo Giometti
+ *	Initial release
+ *
+ * 2002/04/25 - Rob Radez
+ *	clean up #includes
+ *	clean up locking
+ *	make __setup param unique
+ *	proper options in watchdog_info
+ *	add WDIOC_GETSTATUS and WDIOC_SETOPTIONS ioctls
+ *	add expect_close support
+ *
+ * 2002.05.30 - Joel Becker <joel.becker@oracle.com>
+ * 	Added Matt Domsch's nowayout module option.
+ */
+
+/*
+ *	The eurotech CPU-1220/1410/1420's watchdog is a part
+ *	of the on-board SUPER I/O device SMSC FDC 37B782.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+static unsigned long eurwdt_is_open;
+static int eurwdt_timeout;
+static char eur_expect_close;
+static spinlock_t eurwdt_lock;
+
+/*
+ * You must set these - there is no sane way to probe for this board.
+ * You can use eurwdt=x,y to set these now.
+ */
+
+static int io = 0x3f0;
+static int irq = 10;
+static char *ev = "int";
+
+#define WDT_TIMEOUT		60                /* 1 minute */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * Some symbolic names
+ */
+
+#define WDT_CTRL_REG		0x30
+#define WDT_OUTPIN_CFG		0xe2
+#define WDT_EVENT_INT		0x00
+#define WDT_EVENT_REBOOT	0x08
+#define WDT_UNIT_SEL		0xf1
+#define WDT_UNIT_SECS		0x80
+#define WDT_TIMEOUT_VAL		0xf2
+#define WDT_TIMER_CFG		0xf3
+
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "Eurotech WDT io port (default=0x3f0)");
+module_param(irq, int, 0);
+MODULE_PARM_DESC(irq, "Eurotech WDT irq (default=10)");
+module_param(ev, charp, 0);
+MODULE_PARM_DESC(ev, "Eurotech WDT event type (default is `int')");
+
+
+/*
+ * Programming support
+ */
+
+static inline void eurwdt_write_reg(u8 index, u8 data)
+{
+	outb(index, io);
+	outb(data, io+1);
+}
+
+static inline void eurwdt_lock_chip(void)
+{
+	outb(0xaa, io);
+}
+
+static inline void eurwdt_unlock_chip(void)
+{
+	outb(0x55, io);
+	eurwdt_write_reg(0x07, 0x08);	/* set the logical device */
+}
+
+static inline void eurwdt_set_timeout(int timeout)
+{
+	eurwdt_write_reg(WDT_TIMEOUT_VAL, (u8) timeout);
+}
+
+static inline void eurwdt_disable_timer(void)
+{
+	eurwdt_set_timeout(0);
+}
+
+static void eurwdt_activate_timer(void)
+{
+	eurwdt_disable_timer();
+	eurwdt_write_reg(WDT_CTRL_REG, 0x01);	/* activate the WDT */
+	eurwdt_write_reg(WDT_OUTPIN_CFG,
+		!strcmp("int", ev) ? WDT_EVENT_INT : WDT_EVENT_REBOOT);
+
+	/* Setting interrupt line */
+	if (irq == 2 || irq > 15 || irq < 0) {
+		printk(KERN_ERR ": invalid irq number\n");
+		irq = 0;	/* if invalid we disable interrupt */
+	}
+	if (irq == 0)
+		printk(KERN_INFO ": interrupt disabled\n");
+
+	eurwdt_write_reg(WDT_TIMER_CFG, irq<<4);
+
+	eurwdt_write_reg(WDT_UNIT_SEL, WDT_UNIT_SECS);	/* we use seconds */
+	eurwdt_set_timeout(0);	/* the default timeout */
+}
+
+
+/*
+ * Kernel methods.
+ */
+
+static irqreturn_t eurwdt_interrupt(int irq, void *dev_id)
+{
+	printk(KERN_CRIT "timeout WDT timeout\n");
+
+#ifdef ONLY_TESTING
+	printk(KERN_CRIT "Would Reboot.\n");
+#else
+	printk(KERN_CRIT "Initiating system reboot.\n");
+	emergency_restart();
+#endif
+	return IRQ_HANDLED;
+}
+
+
+/**
+ * eurwdt_ping:
+ *
+ * Reload counter one with the watchdog timeout.
+ */
+
+static void eurwdt_ping(void)
+{
+	/* Write the watchdog default value */
+	eurwdt_set_timeout(eurwdt_timeout);
+}
+
+/**
+ * eurwdt_write:
+ * @file: file handle to the watchdog
+ * @buf: buffer to write (unused as data does not matter here
+ * @count: count of bytes
+ * @ppos: pointer to the position to write. No seeks allowed
+ *
+ * A write to a watchdog device is defined as a keepalive signal. Any
+ * write of data will do, as we we don't define content meaning.
+ */
+
+static ssize_t eurwdt_write(struct file *file, const char __user *buf,
+size_t count, loff_t *ppos)
+{
+	if (count) 	{
+		if (!nowayout) {
+			size_t i;
+
+			eur_expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					eur_expect_close = 42;
+			}
+		}
+		spin_lock(&eurwdt_lock);
+		eurwdt_ping();	/* the default timeout */
+		spin_unlock(&eurwdt_lock);
+	}
+	return count;
+}
+
+/**
+ * eurwdt_ioctl:
+ * @file: file handle to the device
+ * @cmd: watchdog command
+ * @arg: argument pointer
+ *
+ * The watchdog API defines a common set of functions for all watchdogs
+ * according to their available features.
+ */
+
+static long eurwdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options	  = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+							| WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity	  = "WDT Eurotech CPU-1220/1410",
+	};
+
+	int time;
+	int options, retval = -EINVAL;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(options, p))
+			return -EFAULT;
+		spin_lock(&eurwdt_lock);
+		if (options & WDIOS_DISABLECARD) {
+			eurwdt_disable_timer();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			eurwdt_activate_timer();
+			eurwdt_ping();
+			retval = 0;
+		}
+		spin_unlock(&eurwdt_lock);
+		return retval;
+
+	case WDIOC_KEEPALIVE:
+		spin_lock(&eurwdt_lock);
+		eurwdt_ping();
+		spin_unlock(&eurwdt_lock);
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (copy_from_user(&time, p, sizeof(int)))
+			return -EFAULT;
+
+		/* Sanity check */
+		if (time < 0 || time > 255)
+			return -EINVAL;
+
+		spin_lock(&eurwdt_lock);
+		eurwdt_timeout = time;
+		eurwdt_set_timeout(time);
+		spin_unlock(&eurwdt_lock);
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(eurwdt_timeout, p);
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+/**
+ * eurwdt_open:
+ * @inode: inode of device
+ * @file: file handle to device
+ *
+ * The misc device has been opened. The watchdog device is single
+ * open and on opening we load the counter.
+ */
+
+static int eurwdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &eurwdt_is_open))
+		return -EBUSY;
+	eurwdt_timeout = WDT_TIMEOUT;	/* initial timeout */
+	/* Activate the WDT */
+	eurwdt_activate_timer();
+	return nonseekable_open(inode, file);
+}
+
+/**
+ * eurwdt_release:
+ * @inode: inode to board
+ * @file: file handle to board
+ *
+ * The watchdog has a configurable API. There is a religious dispute
+ * between people who want their watchdog to be able to shut down and
+ * those who want to be sure if the watchdog manager dies the machine
+ * reboots. In the former case we disable the counters, in the latter
+ * case you have to open it again very soon.
+ */
+
+static int eurwdt_release(struct inode *inode, struct file *file)
+{
+	if (eur_expect_close == 42)
+		eurwdt_disable_timer();
+	else {
+		printk(KERN_CRIT
+			"eurwdt: Unexpected close, not stopping watchdog!\n");
+		eurwdt_ping();
+	}
+	clear_bit(0, &eurwdt_is_open);
+	eur_expect_close = 0;
+	return 0;
+}
+
+/**
+ * eurwdt_notify_sys:
+ * @this: our notifier block
+ * @code: the event being reported
+ * @unused: unused
+ *
+ * Our notifier is called on system shutdowns. We want to turn the card
+ * off at reboot otherwise the machine will reboot again during memory
+ * test or worse yet during the following fsck. This would suck, in fact
+ * trust me - if it happens it does suck.
+ */
+
+static int eurwdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		eurwdt_disable_timer();	/* Turn the card off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ * Kernel Interfaces
+ */
+
+
+static const struct file_operations eurwdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= eurwdt_write,
+	.unlocked_ioctl	= eurwdt_ioctl,
+	.open		= eurwdt_open,
+	.release	= eurwdt_release,
+};
+
+static struct miscdevice eurwdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &eurwdt_fops,
+};
+
+/*
+ * The WDT card needs to learn about soft shutdowns in order to
+ * turn the timebomb registers off.
+ */
+
+static struct notifier_block eurwdt_notifier = {
+	.notifier_call = eurwdt_notify_sys,
+};
+
+/**
+ * cleanup_module:
+ *
+ * Unload the watchdog. You cannot do this with any file handles open.
+ * If your watchdog is set to continue ticking on close and you unload
+ * it, well it keeps ticking. We won't get the interrupt but the board
+ * will not touch PC memory so all is fine. You just have to load a new
+ * module in 60 seconds or reboot.
+ */
+
+static void __exit eurwdt_exit(void)
+{
+	eurwdt_lock_chip();
+
+	misc_deregister(&eurwdt_miscdev);
+
+	unregister_reboot_notifier(&eurwdt_notifier);
+	release_region(io, 2);
+	free_irq(irq, NULL);
+}
+
+/**
+ * eurwdt_init:
+ *
+ * Set up the WDT watchdog board. After grabbing the resources
+ * we require we need also to unlock the device.
+ * The open() function will actually kick the board off.
+ */
+
+static int __init eurwdt_init(void)
+{
+	int ret;
+
+	ret = request_irq(irq, eurwdt_interrupt, IRQF_DISABLED, "eurwdt", NULL);
+	if (ret) {
+		printk(KERN_ERR "eurwdt: IRQ %d is not free.\n", irq);
+		goto out;
+	}
+
+	if (!request_region(io, 2, "eurwdt")) {
+		printk(KERN_ERR "eurwdt: IO %X is not free.\n", io);
+		ret = -EBUSY;
+		goto outirq;
+	}
+
+	ret = register_reboot_notifier(&eurwdt_notifier);
+	if (ret) {
+		printk(KERN_ERR
+		    "eurwdt: can't register reboot notifier (err=%d)\n", ret);
+		goto outreg;
+	}
+
+	spin_lock_init(&eurwdt_lock);
+
+	ret = misc_register(&eurwdt_miscdev);
+	if (ret) {
+		printk(KERN_ERR "eurwdt: can't misc_register on minor=%d\n",
+		WATCHDOG_MINOR);
+		goto outreboot;
+	}
+
+	eurwdt_unlock_chip();
+
+	ret = 0;
+	printk(KERN_INFO "Eurotech WDT driver 0.01 at %X (Interrupt %d)"
+		" - timeout event: %s\n",
+		io, irq, (!strcmp("int", ev) ? "int" : "reboot"));
+
+out:
+	return ret;
+
+outreboot:
+	unregister_reboot_notifier(&eurwdt_notifier);
+
+outreg:
+	release_region(io, 2);
+
+outirq:
+	free_irq(irq, NULL);
+	goto out;
+}
+
+module_init(eurwdt_init);
+module_exit(eurwdt_exit);
+
+MODULE_AUTHOR("Rodolfo Giometti");
+MODULE_DESCRIPTION("Driver for Eurotech CPU-1220/1410 on board watchdog");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
new file mode 100644
index 0000000..6799a6d
--- /dev/null
+++ b/drivers/watchdog/geodewdt.c
@@ -0,0 +1,296 @@
+/* Watchdog timer for the Geode GX/LX with the CS5535/CS5536 companion chip
+ *
+ * Copyright (C) 2006-2007, Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+#include <linux/uaccess.h>
+
+#include <asm/geode.h>
+
+#define GEODEWDT_HZ 500
+#define GEODEWDT_SCALE 6
+#define GEODEWDT_MAX_SECONDS 131
+
+#define WDT_FLAGS_OPEN 1
+#define WDT_FLAGS_ORPHAN 2
+
+#define DRV_NAME "geodewdt"
+#define WATCHDOG_NAME "Geode GX/LX WDT"
+#define WATCHDOG_TIMEOUT 60
+
+static int timeout = WATCHDOG_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=131, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ".");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static struct platform_device *geodewdt_platform_device;
+static unsigned long wdt_flags;
+static int wdt_timer;
+static int safe_close;
+
+static void geodewdt_ping(void)
+{
+	/* Stop the counter */
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+
+	/* Reset the counter */
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+
+	/* Enable the counter */
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
+}
+
+static void geodewdt_disable(void)
+{
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+}
+
+static int geodewdt_set_heartbeat(int val)
+{
+	if (val < 1 || val > GEODEWDT_MAX_SECONDS)
+		return -EINVAL;
+
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_CMP2, val * GEODEWDT_HZ);
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
+
+	timeout = val;
+	return 0;
+}
+
+static int geodewdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_FLAGS_OPEN, &wdt_flags))
+		return -EBUSY;
+
+	if (!test_and_clear_bit(WDT_FLAGS_ORPHAN, &wdt_flags))
+		__module_get(THIS_MODULE);
+
+	geodewdt_ping();
+	return nonseekable_open(inode, file);
+}
+
+static int geodewdt_release(struct inode *inode, struct file *file)
+{
+	if (safe_close) {
+		geodewdt_disable();
+		module_put(THIS_MODULE);
+	} else {
+		printk(KERN_CRIT "Unexpected close - watchdog is not stopping.\n");
+		geodewdt_ping();
+
+		set_bit(WDT_FLAGS_ORPHAN, &wdt_flags);
+	}
+
+	clear_bit(WDT_FLAGS_OPEN, &wdt_flags);
+	safe_close = 0;
+	return 0;
+}
+
+static ssize_t geodewdt_write(struct file *file, const char __user *data,
+				size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+			safe_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+
+				if (c == 'V')
+					safe_close = 1;
+			}
+		}
+
+		geodewdt_ping();
+	}
+	return len;
+}
+
+static long geodewdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int interval;
+
+	static struct watchdog_info ident = {
+		.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING
+		| WDIOF_MAGICCLOSE,
+		.firmware_version =     1,
+		.identity =             WATCHDOG_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident,
+				    sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, ret = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			geodewdt_disable();
+			ret = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			geodewdt_ping();
+			ret = 0;
+		}
+
+		return ret;
+	}
+	case WDIOC_KEEPALIVE:
+		geodewdt_ping();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(interval, p))
+			return -EFAULT;
+
+		if (geodewdt_set_heartbeat(interval))
+			return -EINVAL;
+	/* Fall through */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+
+	default:
+		return -ENOTTY;
+	}
+
+	return 0;
+}
+
+static const struct file_operations geodewdt_fops = {
+	.owner          = THIS_MODULE,
+	.llseek         = no_llseek,
+	.write          = geodewdt_write,
+	.unlocked_ioctl = geodewdt_ioctl,
+	.open           = geodewdt_open,
+	.release        = geodewdt_release,
+};
+
+static struct miscdevice geodewdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &geodewdt_fops,
+};
+
+static int __devinit geodewdt_probe(struct platform_device *dev)
+{
+	int ret, timer;
+
+	timer = geode_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
+
+	if (timer == -1) {
+		printk(KERN_ERR "geodewdt:  No timers were available\n");
+		return -ENODEV;
+	}
+
+	wdt_timer = timer;
+
+	/* Set up the timer */
+
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP,
+			  GEODEWDT_SCALE | (3 << 8));
+
+	/* Set up comparator 2 to reset when the event fires */
+	geode_mfgpt_toggle_event(wdt_timer, MFGPT_CMP2, MFGPT_EVENT_RESET, 1);
+
+	/* Set up the initial timeout */
+
+	geode_mfgpt_write(wdt_timer, MFGPT_REG_CMP2,
+		timeout * GEODEWDT_HZ);
+
+	ret = misc_register(&geodewdt_miscdev);
+
+	return ret;
+}
+
+static int __devexit geodewdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&geodewdt_miscdev);
+	return 0;
+}
+
+static void geodewdt_shutdown(struct platform_device *dev)
+{
+	geodewdt_disable();
+}
+
+static struct platform_driver geodewdt_driver = {
+	.probe		= geodewdt_probe,
+	.remove		= __devexit_p(geodewdt_remove),
+	.shutdown	= geodewdt_shutdown,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= DRV_NAME,
+	},
+};
+
+static int __init geodewdt_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&geodewdt_driver);
+	if (ret)
+		return ret;
+
+	geodewdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
+	if (IS_ERR(geodewdt_platform_device)) {
+		ret = PTR_ERR(geodewdt_platform_device);
+		goto err;
+	}
+
+	return 0;
+err:
+	platform_driver_unregister(&geodewdt_driver);
+	return ret;
+}
+
+static void __exit geodewdt_exit(void)
+{
+	platform_device_unregister(geodewdt_platform_device);
+	platform_driver_unregister(&geodewdt_driver);
+}
+
+module_init(geodewdt_init);
+module_exit(geodewdt_exit);
+
+MODULE_AUTHOR("Advanced Micro Devices, Inc");
+MODULE_DESCRIPTION("Geode GX/LX Watchdog Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
new file mode 100644
index 0000000..763c1ea
--- /dev/null
+++ b/drivers/watchdog/hpwdt.c
@@ -0,0 +1,773 @@
+/*
+ *	HP WatchDog Driver
+ *	based on
+ *
+ *	SoftDog	0.05:	A Software Watchdog Device
+ *
+ *	(c) Copyright 2007 Hewlett-Packard Development Company, L.P.
+ *	Thomas Mingarelli <thomas.mingarelli@hp.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	version 2 as published by the Free Software Foundation
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/kdebug.h>
+#include <linux/moduleparam.h>
+#include <linux/notifier.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/reboot.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+#include <linux/watchdog.h>
+#include <linux/dmi.h>
+#include <linux/efi.h>
+#include <linux/string.h>
+#include <linux/bootmem.h>
+#include <linux/slab.h>
+#include <asm/desc.h>
+#include <asm/cacheflush.h>
+
+#define PCI_BIOS32_SD_VALUE		0x5F32335F	/* "_32_" */
+#define CRU_BIOS_SIGNATURE_VALUE	0x55524324
+#define PCI_BIOS32_PARAGRAPH_LEN	16
+#define PCI_ROM_BASE1			0x000F0000
+#define ROM_SIZE			0x10000
+
+struct bios32_service_dir {
+	u32 signature;
+	u32 entry_point;
+	u8 revision;
+	u8 length;
+	u8 checksum;
+	u8 reserved[5];
+};
+
+/* type 212 */
+struct smbios_cru64_info {
+	u8 type;
+	u8 byte_length;
+	u16 handle;
+	u32 signature;
+	u64 physical_address;
+	u32 double_length;
+	u32 double_offset;
+};
+#define SMBIOS_CRU64_INFORMATION	212
+
+struct cmn_registers {
+	union {
+		struct {
+			u8 ral;
+			u8 rah;
+			u16 rea2;
+		};
+		u32 reax;
+	} u1;
+	union {
+		struct {
+			u8 rbl;
+			u8 rbh;
+			u8 reb2l;
+			u8 reb2h;
+		};
+		u32 rebx;
+	} u2;
+	union {
+		struct {
+			u8 rcl;
+			u8 rch;
+			u16 rec2;
+		};
+		u32 recx;
+	} u3;
+	union {
+		struct {
+			u8 rdl;
+			u8 rdh;
+			u16 red2;
+		};
+		u32 redx;
+	} u4;
+
+	u32 resi;
+	u32 redi;
+	u16 rds;
+	u16 res;
+	u32 reflags;
+}  __attribute__((packed));
+
+#define DEFAULT_MARGIN	30
+static unsigned int soft_margin = DEFAULT_MARGIN;	/* in seconds */
+static unsigned int reload;			/* the computed soft_margin */
+static int nowayout = WATCHDOG_NOWAYOUT;
+static char expect_release;
+static unsigned long hpwdt_is_open;
+static unsigned int allow_kdump;
+
+static void __iomem *pci_mem_addr;		/* the PCI-memory address */
+static unsigned long __iomem *hpwdt_timer_reg;
+static unsigned long __iomem *hpwdt_timer_con;
+
+static DEFINE_SPINLOCK(rom_lock);
+
+static void *cru_rom_addr;
+
+static struct cmn_registers cmn_regs;
+
+static struct pci_device_id hpwdt_devices[] = {
+	{
+	 .vendor = PCI_VENDOR_ID_COMPAQ,
+	 .device = 0xB203,
+	 .subvendor = PCI_ANY_ID,
+	 .subdevice = PCI_ANY_ID,
+	},
+	{0},			/* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, hpwdt_devices);
+
+extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs, unsigned long *pRomEntry);
+
+#ifndef CONFIG_X86_64
+/* --32 Bit Bios------------------------------------------------------------ */
+
+#define HPWDT_ARCH	32
+
+asm(".text                          \n\t"
+    ".align 4                       \n"
+    "asminline_call:                \n\t"
+    "pushl       %ebp               \n\t"
+    "movl        %esp, %ebp         \n\t"
+    "pusha                          \n\t"
+    "pushf                          \n\t"
+    "push        %es                \n\t"
+    "push        %ds                \n\t"
+    "pop         %es                \n\t"
+    "movl        8(%ebp),%eax       \n\t"
+    "movl        4(%eax),%ebx       \n\t"
+    "movl        8(%eax),%ecx       \n\t"
+    "movl        12(%eax),%edx      \n\t"
+    "movl        16(%eax),%esi      \n\t"
+    "movl        20(%eax),%edi      \n\t"
+    "movl        (%eax),%eax        \n\t"
+    "push        %cs                \n\t"
+    "call        *12(%ebp)          \n\t"
+    "pushf                          \n\t"
+    "pushl       %eax               \n\t"
+    "movl        8(%ebp),%eax       \n\t"
+    "movl        %ebx,4(%eax)       \n\t"
+    "movl        %ecx,8(%eax)       \n\t"
+    "movl        %edx,12(%eax)      \n\t"
+    "movl        %esi,16(%eax)      \n\t"
+    "movl        %edi,20(%eax)      \n\t"
+    "movw        %ds,24(%eax)       \n\t"
+    "movw        %es,26(%eax)       \n\t"
+    "popl        %ebx               \n\t"
+    "movl        %ebx,(%eax)        \n\t"
+    "popl        %ebx               \n\t"
+    "movl        %ebx,28(%eax)      \n\t"
+    "pop         %es                \n\t"
+    "popf                           \n\t"
+    "popa                           \n\t"
+    "leave                          \n\t"
+    "ret                            \n\t"
+    ".previous");
+
+
+/*
+ *	cru_detect
+ *
+ *	Routine Description:
+ *	This function uses the 32-bit BIOS Service Directory record to
+ *	search for a $CRU record.
+ *
+ *	Return Value:
+ *	0        :  SUCCESS
+ *	<0       :  FAILURE
+ */
+static int __devinit cru_detect(unsigned long map_entry,
+	unsigned long map_offset)
+{
+	void *bios32_map;
+	unsigned long *bios32_entrypoint;
+	unsigned long cru_physical_address;
+	unsigned long cru_length;
+	unsigned long physical_bios_base = 0;
+	unsigned long physical_bios_offset = 0;
+	int retval = -ENODEV;
+
+	bios32_map = ioremap(map_entry, (2 * PAGE_SIZE));
+
+	if (bios32_map == NULL)
+		return -ENODEV;
+
+	bios32_entrypoint = bios32_map + map_offset;
+
+	cmn_regs.u1.reax = CRU_BIOS_SIGNATURE_VALUE;
+
+	asminline_call(&cmn_regs, bios32_entrypoint);
+
+	if (cmn_regs.u1.ral != 0) {
+		printk(KERN_WARNING
+			"hpwdt: Call succeeded but with an error: 0x%x\n",
+			cmn_regs.u1.ral);
+	} else {
+		physical_bios_base = cmn_regs.u2.rebx;
+		physical_bios_offset = cmn_regs.u4.redx;
+		cru_length = cmn_regs.u3.recx;
+		cru_physical_address =
+			physical_bios_base + physical_bios_offset;
+
+		/* If the values look OK, then map it in. */
+		if ((physical_bios_base + physical_bios_offset)) {
+			cru_rom_addr =
+				ioremap(cru_physical_address, cru_length);
+			if (cru_rom_addr)
+				retval = 0;
+		}
+
+		printk(KERN_DEBUG "hpwdt: CRU Base Address:   0x%lx\n",
+			physical_bios_base);
+		printk(KERN_DEBUG "hpwdt: CRU Offset Address: 0x%lx\n",
+			physical_bios_offset);
+		printk(KERN_DEBUG "hpwdt: CRU Length:         0x%lx\n",
+			cru_length);
+		printk(KERN_DEBUG "hpwdt: CRU Mapped Address: 0x%x\n",
+			(unsigned int)&cru_rom_addr);
+	}
+	iounmap(bios32_map);
+	return retval;
+}
+
+/*
+ *	bios_checksum
+ */
+static int __devinit bios_checksum(const char __iomem *ptr, int len)
+{
+	char sum = 0;
+	int i;
+
+	/*
+	 * calculate checksum of size bytes. This should add up
+	 * to zero if we have a valid header.
+	 */
+	for (i = 0; i < len; i++)
+		sum += ptr[i];
+
+	return ((sum == 0) && (len > 0));
+}
+
+/*
+ *	bios32_present
+ *
+ *	Routine Description:
+ *	This function finds the 32-bit BIOS Service Directory
+ *
+ *	Return Value:
+ *	0        :  SUCCESS
+ *	<0       :  FAILURE
+ */
+static int __devinit bios32_present(const char __iomem *p)
+{
+	struct bios32_service_dir *bios_32_ptr;
+	int length;
+	unsigned long map_entry, map_offset;
+
+	bios_32_ptr = (struct bios32_service_dir *) p;
+
+	/*
+	 * Search for signature by checking equal to the swizzled value
+	 * instead of calling another routine to perform a strcmp.
+	 */
+	if (bios_32_ptr->signature == PCI_BIOS32_SD_VALUE) {
+		length = bios_32_ptr->length * PCI_BIOS32_PARAGRAPH_LEN;
+		if (bios_checksum(p, length)) {
+			/*
+			 * According to the spec, we're looking for the
+			 * first 4KB-aligned address below the entrypoint
+			 * listed in the header. The Service Directory code
+			 * is guaranteed to occupy no more than 2 4KB pages.
+			 */
+			map_entry = bios_32_ptr->entry_point & ~(PAGE_SIZE - 1);
+			map_offset = bios_32_ptr->entry_point - map_entry;
+
+			return cru_detect(map_entry, map_offset);
+		}
+	}
+	return -ENODEV;
+}
+
+static int __devinit detect_cru_service(void)
+{
+	char __iomem *p, *q;
+	int rc = -1;
+
+	/*
+	 * Search from 0x0f0000 through 0x0fffff, inclusive.
+	 */
+	p = ioremap(PCI_ROM_BASE1, ROM_SIZE);
+	if (p == NULL)
+		return -ENOMEM;
+
+	for (q = p; q < p + ROM_SIZE; q += 16) {
+		rc = bios32_present(q);
+		if (!rc)
+			break;
+	}
+	iounmap(p);
+	return rc;
+}
+
+#else
+/* --64 Bit Bios------------------------------------------------------------ */
+
+#define HPWDT_ARCH	64
+
+asm(".text                      \n\t"
+    ".align 4                   \n"
+    "asminline_call:            \n\t"
+    "pushq      %rbp            \n\t"
+    "movq       %rsp, %rbp      \n\t"
+    "pushq      %rax            \n\t"
+    "pushq      %rbx            \n\t"
+    "pushq      %rdx            \n\t"
+    "pushq      %r12            \n\t"
+    "pushq      %r9             \n\t"
+    "movq       %rsi, %r12      \n\t"
+    "movq       %rdi, %r9       \n\t"
+    "movl       4(%r9),%ebx     \n\t"
+    "movl       8(%r9),%ecx     \n\t"
+    "movl       12(%r9),%edx    \n\t"
+    "movl       16(%r9),%esi    \n\t"
+    "movl       20(%r9),%edi    \n\t"
+    "movl       (%r9),%eax      \n\t"
+    "call       *%r12           \n\t"
+    "pushfq                     \n\t"
+    "popq        %r12           \n\t"
+    "movl       %eax, (%r9)     \n\t"
+    "movl       %ebx, 4(%r9)    \n\t"
+    "movl       %ecx, 8(%r9)    \n\t"
+    "movl       %edx, 12(%r9)   \n\t"
+    "movl       %esi, 16(%r9)   \n\t"
+    "movl       %edi, 20(%r9)   \n\t"
+    "movq       %r12, %rax      \n\t"
+    "movl       %eax, 28(%r9)   \n\t"
+    "popq       %r9             \n\t"
+    "popq       %r12            \n\t"
+    "popq       %rdx            \n\t"
+    "popq       %rbx            \n\t"
+    "popq       %rax            \n\t"
+    "leave                      \n\t"
+    "ret                        \n\t"
+    ".previous");
+
+/*
+ *	dmi_find_cru
+ *
+ *	Routine Description:
+ *	This function checks whether or not a SMBIOS/DMI record is
+ *	the 64bit CRU info or not
+ */
+static void __devinit dmi_find_cru(const struct dmi_header *dm)
+{
+	struct smbios_cru64_info *smbios_cru64_ptr;
+	unsigned long cru_physical_address;
+
+	if (dm->type == SMBIOS_CRU64_INFORMATION) {
+		smbios_cru64_ptr = (struct smbios_cru64_info *) dm;
+		if (smbios_cru64_ptr->signature == CRU_BIOS_SIGNATURE_VALUE) {
+			cru_physical_address =
+				smbios_cru64_ptr->physical_address +
+				smbios_cru64_ptr->double_offset;
+			cru_rom_addr = ioremap(cru_physical_address,
+				smbios_cru64_ptr->double_length);
+			set_memory_x((unsigned long)cru_rom_addr & PAGE_MASK,
+				smbios_cru64_ptr->double_length >> PAGE_SHIFT);
+		}
+	}
+}
+
+static int __devinit detect_cru_service(void)
+{
+	cru_rom_addr = NULL;
+
+	dmi_walk(dmi_find_cru);
+
+	/* if cru_rom_addr has been set then we found a CRU service */
+	return ((cru_rom_addr != NULL) ? 0 : -ENODEV);
+}
+
+/* ------------------------------------------------------------------------- */
+
+#endif
+
+/*
+ *	Watchdog operations
+ */
+static void hpwdt_start(void)
+{
+	reload = (soft_margin * 1000) / 128;
+	iowrite16(reload, hpwdt_timer_reg);
+	iowrite16(0x85, hpwdt_timer_con);
+}
+
+static void hpwdt_stop(void)
+{
+	unsigned long data;
+
+	data = ioread16(hpwdt_timer_con);
+	data &= 0xFE;
+	iowrite16(data, hpwdt_timer_con);
+}
+
+static void hpwdt_ping(void)
+{
+	iowrite16(reload, hpwdt_timer_reg);
+}
+
+static int hpwdt_change_timer(int new_margin)
+{
+	/* Arbitrary, can't find the card's limits */
+	if (new_margin < 30 || new_margin > 600) {
+		printk(KERN_WARNING
+			"hpwdt: New value passed in is invalid: %d seconds.\n",
+			new_margin);
+		return -EINVAL;
+	}
+
+	soft_margin = new_margin;
+	printk(KERN_DEBUG
+		"hpwdt: New timer passed in is %d seconds.\n",
+		new_margin);
+	reload = (soft_margin * 1000) / 128;
+
+	return 0;
+}
+
+/*
+ *	NMI Handler
+ */
+static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
+				void *data)
+{
+	unsigned long rom_pl;
+	static int die_nmi_called;
+
+	if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
+		return NOTIFY_OK;
+
+	spin_lock_irqsave(&rom_lock, rom_pl);
+	if (!die_nmi_called)
+		asminline_call(&cmn_regs, cru_rom_addr);
+	die_nmi_called = 1;
+	spin_unlock_irqrestore(&rom_lock, rom_pl);
+	if (cmn_regs.u1.ral == 0) {
+		printk(KERN_WARNING "hpwdt: An NMI occurred, "
+			"but unable to determine source.\n");
+	} else {
+		if (allow_kdump)
+			hpwdt_stop();
+		panic("An NMI occurred, please see the Integrated "
+			"Management Log for details.\n");
+	}
+
+	return NOTIFY_OK;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+static int hpwdt_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &hpwdt_is_open))
+		return -EBUSY;
+
+	/* Start the watchdog */
+	hpwdt_start();
+	hpwdt_ping();
+
+	return nonseekable_open(inode, file);
+}
+
+static int hpwdt_release(struct inode *inode, struct file *file)
+{
+	/* Stop the watchdog */
+	if (expect_release == 42) {
+		hpwdt_stop();
+	} else {
+		printk(KERN_CRIT
+			"hpwdt: Unexpected close, not stopping watchdog!\n");
+		hpwdt_ping();
+	}
+
+	expect_release = 0;
+
+	/* /dev/watchdog is being closed, make sure it can be re-opened */
+	clear_bit(0, &hpwdt_is_open);
+
+	return 0;
+}
+
+static ssize_t hpwdt_write(struct file *file, const char __user *data,
+	size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* note: just in case someone wrote the magic character
+			 * five months ago... */
+			expect_release = 0;
+
+			/* scan to see whether or not we got the magic char. */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_release = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		hpwdt_ping();
+	}
+
+	return len;
+}
+
+static struct watchdog_info ident = {
+	.options = WDIOF_SETTIMEOUT |
+		   WDIOF_KEEPALIVEPING |
+		   WDIOF_MAGICCLOSE,
+	.identity = "HP iLO2 HW Watchdog Timer",
+};
+
+static long hpwdt_ioctl(struct file *file, unsigned int cmd,
+	unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_margin;
+	int ret = -ENOTTY;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = 0;
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			ret = -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, p);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		hpwdt_ping();
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(new_margin, p);
+		if (ret)
+			break;
+
+		ret = hpwdt_change_timer(new_margin);
+		if (ret)
+			break;
+
+		hpwdt_ping();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(soft_margin, p);
+		break;
+	}
+	return ret;
+}
+
+/*
+ *	Kernel interfaces
+ */
+static struct file_operations hpwdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = hpwdt_write,
+	.unlocked_ioctl = hpwdt_ioctl,
+	.open = hpwdt_open,
+	.release = hpwdt_release,
+};
+
+static struct miscdevice hpwdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &hpwdt_fops,
+};
+
+static struct notifier_block die_notifier = {
+	.notifier_call = hpwdt_pretimeout,
+	.priority = 0x7FFFFFFF,
+};
+
+/*
+ *	Init & Exit
+ */
+
+static int __devinit hpwdt_init_one(struct pci_dev *dev,
+					const struct pci_device_id *ent)
+{
+	int retval;
+
+	/*
+	 * First let's find out if we are on an iLO2 server. We will
+	 * not run on a legacy ASM box.
+	 * So we only support the G5 ProLiant servers and higher.
+	 */
+	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP) {
+		dev_warn(&dev->dev,
+			"This server does not have an iLO2 ASIC.\n");
+		return -ENODEV;
+	}
+
+	if (pci_enable_device(dev)) {
+		dev_warn(&dev->dev,
+			"Not possible to enable PCI Device: 0x%x:0x%x.\n",
+			ent->vendor, ent->device);
+		return -ENODEV;
+	}
+
+	pci_mem_addr = pci_iomap(dev, 1, 0x80);
+	if (!pci_mem_addr) {
+		dev_warn(&dev->dev,
+			"Unable to detect the iLO2 server memory.\n");
+		retval = -ENOMEM;
+		goto error_pci_iomap;
+	}
+	hpwdt_timer_reg = pci_mem_addr + 0x70;
+	hpwdt_timer_con = pci_mem_addr + 0x72;
+
+	/* Make sure that we have a valid soft_margin */
+	if (hpwdt_change_timer(soft_margin))
+		hpwdt_change_timer(DEFAULT_MARGIN);
+
+	/*
+	 * We need to map the ROM to get the CRU service.
+	 * For 32 bit Operating Systems we need to go through the 32 Bit
+	 * BIOS Service Directory
+	 * For 64 bit Operating Systems we get that service through SMBIOS.
+	 */
+	retval = detect_cru_service();
+	if (retval < 0) {
+		dev_warn(&dev->dev,
+			"Unable to detect the %d Bit CRU Service.\n",
+			HPWDT_ARCH);
+		goto error_get_cru;
+	}
+
+	/*
+	 * We know this is the only CRU call we need to make so lets keep as
+	 * few instructions as possible once the NMI comes in.
+	 */
+	cmn_regs.u1.rah = 0x0D;
+	cmn_regs.u1.ral = 0x02;
+
+	retval = register_die_notifier(&die_notifier);
+	if (retval != 0) {
+		dev_warn(&dev->dev,
+			"Unable to register a die notifier (err=%d).\n",
+			retval);
+		goto error_die_notifier;
+	}
+
+	retval = misc_register(&hpwdt_miscdev);
+	if (retval < 0) {
+		dev_warn(&dev->dev,
+			"Unable to register miscdev on minor=%d (err=%d).\n",
+			WATCHDOG_MINOR, retval);
+		goto error_misc_register;
+	}
+
+	printk(KERN_INFO
+		"hp Watchdog Timer Driver: 1.00"
+		", timer margin: %d seconds (nowayout=%d)"
+		", allow kernel dump: %s (default = 0/OFF).\n",
+		soft_margin, nowayout, (allow_kdump == 0) ? "OFF" : "ON");
+
+	return 0;
+
+error_misc_register:
+	unregister_die_notifier(&die_notifier);
+error_die_notifier:
+	if (cru_rom_addr)
+		iounmap(cru_rom_addr);
+error_get_cru:
+	pci_iounmap(dev, pci_mem_addr);
+error_pci_iomap:
+	pci_disable_device(dev);
+	return retval;
+}
+
+static void __devexit hpwdt_exit(struct pci_dev *dev)
+{
+	if (!nowayout)
+		hpwdt_stop();
+
+	misc_deregister(&hpwdt_miscdev);
+	unregister_die_notifier(&die_notifier);
+
+	if (cru_rom_addr)
+		iounmap(cru_rom_addr);
+	pci_iounmap(dev, pci_mem_addr);
+	pci_disable_device(dev);
+}
+
+static struct pci_driver hpwdt_driver = {
+	.name = "hpwdt",
+	.id_table = hpwdt_devices,
+	.probe = hpwdt_init_one,
+	.remove = __devexit_p(hpwdt_exit),
+};
+
+static void __exit hpwdt_cleanup(void)
+{
+	pci_unregister_driver(&hpwdt_driver);
+}
+
+static int __init hpwdt_init(void)
+{
+	return pci_register_driver(&hpwdt_driver);
+}
+
+MODULE_AUTHOR("Tom Mingarelli");
+MODULE_DESCRIPTION("hp watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(soft_margin, int, 0);
+MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
+
+module_param(allow_kdump, int, 0);
+MODULE_PARM_DESC(allow_kdump, "Start a kernel dump after NMI occurs");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+		__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+module_init(hpwdt_init);
+module_exit(hpwdt_cleanup);
diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c
new file mode 100644
index 0000000..74f951c
--- /dev/null
+++ b/drivers/watchdog/i6300esb.c
@@ -0,0 +1,516 @@
+/*
+ *	i6300esb:	Watchdog timer driver for Intel 6300ESB chipset
+ *
+ *	(c) Copyright 2004 Google Inc.
+ *	(c) Copyright 2005 David Härdeman <david@2gen.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	based on i810-tco.c which is in turn based on softdog.c
+ *
+ *	The timer is implemented in the following I/O controller hubs:
+ *	(See the intel documentation on http://developer.intel.com.)
+ *	6300ESB chip : document number 300641-003
+ *
+ *  2004YYZZ Ross Biro
+ *	Initial version 0.01
+ *  2004YYZZ Ross Biro
+ *	Version 0.02
+ *  20050210 David Härdeman <david@2gen.com>
+ *	Ported driver to kernel 2.6
+ */
+
+/*
+ *      Includes, defines, variables, module parameters, ...
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+/* Module and version information */
+#define ESB_VERSION "0.03"
+#define ESB_MODULE_NAME "i6300ESB timer"
+#define ESB_DRIVER_NAME ESB_MODULE_NAME ", v" ESB_VERSION
+#define PFX ESB_MODULE_NAME ": "
+
+/* PCI configuration registers */
+#define ESB_CONFIG_REG  0x60            /* Config register                   */
+#define ESB_LOCK_REG    0x68            /* WDT lock register                 */
+
+/* Memory mapped registers */
+#define ESB_TIMER1_REG  BASEADDR + 0x00 /* Timer1 value after each reset     */
+#define ESB_TIMER2_REG  BASEADDR + 0x04 /* Timer2 value after each reset     */
+#define ESB_GINTSR_REG  BASEADDR + 0x08 /* General Interrupt Status Register */
+#define ESB_RELOAD_REG  BASEADDR + 0x0c /* Reload register                   */
+
+/* Lock register bits */
+#define ESB_WDT_FUNC    (0x01 << 2)   /* Watchdog functionality            */
+#define ESB_WDT_ENABLE  (0x01 << 1)   /* Enable WDT                        */
+#define ESB_WDT_LOCK    (0x01 << 0)   /* Lock (nowayout)                   */
+
+/* Config register bits */
+#define ESB_WDT_REBOOT  (0x01 << 5)   /* Enable reboot on timeout          */
+#define ESB_WDT_FREQ    (0x01 << 2)   /* Decrement frequency               */
+#define ESB_WDT_INTTYPE (0x11 << 0)   /* Interrupt type on timer1 timeout  */
+
+/* Reload register bits */
+#define ESB_WDT_RELOAD  (0x01 << 8)    /* prevent timeout                   */
+
+/* Magic constants */
+#define ESB_UNLOCK1     0x80            /* Step 1 to unlock reset registers  */
+#define ESB_UNLOCK2     0x86            /* Step 2 to unlock reset registers  */
+
+/* internal variables */
+static void __iomem *BASEADDR;
+static DEFINE_SPINLOCK(esb_lock); /* Guards the hardware */
+static unsigned long timer_alive;
+static struct pci_dev *esb_pci;
+static unsigned short triggered; /* The status of the watchdog upon boot */
+static char esb_expect_close;
+
+/* module parameters */
+/* 30 sec default heartbeat (1 < heartbeat < 2*1023) */
+#define WATCHDOG_HEARTBEAT 30
+static int heartbeat = WATCHDOG_HEARTBEAT;  /* in seconds */
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+		"Watchdog heartbeat in seconds. (1<heartbeat<2046, default="
+				__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * Some i6300ESB specific functions
+ */
+
+/*
+ * Prepare for reloading the timer by unlocking the proper registers.
+ * This is performed by first writing 0x80 followed by 0x86 to the
+ * reload register. After this the appropriate registers can be written
+ * to once before they need to be unlocked again.
+ */
+static inline void esb_unlock_registers(void)
+{
+	writeb(ESB_UNLOCK1, ESB_RELOAD_REG);
+	writeb(ESB_UNLOCK2, ESB_RELOAD_REG);
+}
+
+static void esb_timer_start(void)
+{
+	u8 val;
+
+	/* Enable or Enable + Lock? */
+	val = 0x02 | (nowayout ? 0x01 : 0x00);
+	pci_write_config_byte(esb_pci, ESB_LOCK_REG, val);
+}
+
+static int esb_timer_stop(void)
+{
+	u8 val;
+
+	spin_lock(&esb_lock);
+	/* First, reset timers as suggested by the docs */
+	esb_unlock_registers();
+	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG);
+	/* Then disable the WDT */
+	pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x0);
+	pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val);
+	spin_unlock(&esb_lock);
+
+	/* Returns 0 if the timer was disabled, non-zero otherwise */
+	return (val & 0x01);
+}
+
+static void esb_timer_keepalive(void)
+{
+	spin_lock(&esb_lock);
+	esb_unlock_registers();
+	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG);
+	/* FIXME: Do we need to flush anything here? */
+	spin_unlock(&esb_lock);
+}
+
+static int esb_timer_set_heartbeat(int time)
+{
+	u32 val;
+
+	if (time < 0x1 || time > (2 * 0x03ff))
+		return -EINVAL;
+
+	spin_lock(&esb_lock);
+
+	/* We shift by 9, so if we are passed a value of 1 sec,
+	 * val will be 1 << 9 = 512, then write that to two
+	 * timers => 2 * 512 = 1024 (which is decremented at 1KHz)
+	 */
+	val = time << 9;
+
+	/* Write timer 1 */
+	esb_unlock_registers();
+	writel(val, ESB_TIMER1_REG);
+
+	/* Write timer 2 */
+	esb_unlock_registers();
+	writel(val, ESB_TIMER2_REG);
+
+	/* Reload */
+	esb_unlock_registers();
+	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG);
+
+	/* FIXME: Do we need to flush everything out? */
+
+	/* Done */
+	heartbeat = time;
+	spin_unlock(&esb_lock);
+	return 0;
+}
+
+static int esb_timer_read(void)
+{
+	u32 count;
+
+	/* This isn't documented, and doesn't take into
+	 * acount which stage is running, but it looks
+	 * like a 20 bit count down, so we might as well report it.
+	 */
+	pci_read_config_dword(esb_pci, 0x64, &count);
+	return (int)count;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static int esb_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &timer_alive))
+		return -EBUSY;
+
+	/* Reload and activate timer */
+	esb_timer_keepalive();
+	esb_timer_start();
+
+	return nonseekable_open(inode, file);
+}
+
+static int esb_release(struct inode *inode, struct file *file)
+{
+	/* Shut off the timer. */
+	if (esb_expect_close == 42)
+		esb_timer_stop();
+	else {
+		printk(KERN_CRIT PFX
+				"Unexpected close, not stopping watchdog!\n");
+		esb_timer_keepalive();
+	}
+	clear_bit(0, &timer_alive);
+	esb_expect_close = 0;
+	return 0;
+}
+
+static ssize_t esb_write(struct file *file, const char __user *data,
+			  size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* note: just in case someone wrote the magic character
+			 * five months ago... */
+			esb_expect_close = 0;
+
+			/* scan to see whether or not we got the magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					esb_expect_close = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		esb_timer_keepalive();
+	}
+	return len;
+}
+
+static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int new_options, retval = -EINVAL;
+	int new_heartbeat;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	0,
+		.identity =		ESB_MODULE_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident,
+					sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+		return put_user(esb_timer_read(), p);
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(triggered, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		if (get_user(new_options, p))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			esb_timer_stop();
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			esb_timer_keepalive();
+			esb_timer_start();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		esb_timer_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+	{
+		if (get_user(new_heartbeat, p))
+			return -EFAULT;
+		if (esb_timer_set_heartbeat(new_heartbeat))
+			return -EINVAL;
+		esb_timer_keepalive();
+		/* Fall */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/*
+ *      Notify system
+ */
+
+static int esb_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		esb_timer_stop();	/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *      Kernel Interfaces
+ */
+
+static const struct file_operations esb_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = esb_write,
+	.unlocked_ioctl = esb_ioctl,
+	.open = esb_open,
+	.release = esb_release,
+};
+
+static struct miscdevice esb_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &esb_fops,
+};
+
+static struct notifier_block esb_notifier = {
+	.notifier_call = esb_notify_sys,
+};
+
+/*
+ * Data for PCI driver interface
+ *
+ * This data only exists for exporting the supported
+ * PCI ids via MODULE_DEVICE_TABLE.  We do not actually
+ * register a pci_driver, because someone else might one day
+ * want to register another driver on the same PCI id.
+ */
+static struct pci_device_id esb_pci_tbl[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_9), },
+	{ 0, },                 /* End of list */
+};
+MODULE_DEVICE_TABLE(pci, esb_pci_tbl);
+
+/*
+ *      Init & exit routines
+ */
+
+static unsigned char __init esb_getdevice(void)
+{
+	u8 val1;
+	unsigned short val2;
+	/*
+	 *      Find the PCI device
+	 */
+
+	esb_pci = pci_get_device(PCI_VENDOR_ID_INTEL,
+					PCI_DEVICE_ID_INTEL_ESB_9, NULL);
+
+	if (esb_pci) {
+		if (pci_enable_device(esb_pci)) {
+			printk(KERN_ERR PFX "failed to enable device\n");
+			goto err_devput;
+		}
+
+		if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
+			printk(KERN_ERR PFX "failed to request region\n");
+			goto err_disable;
+		}
+
+		BASEADDR = pci_ioremap_bar(esb_pci, 0);
+		if (BASEADDR == NULL) {
+			/* Something's wrong here, BASEADDR has to be set */
+			printk(KERN_ERR PFX "failed to get BASEADDR\n");
+			goto err_release;
+		}
+
+		/*
+		 * The watchdog has two timers, it can be setup so that the
+		 * expiry of timer1 results in an interrupt and the expiry of
+		 * timer2 results in a reboot. We set it to not generate
+		 * any interrupts as there is not much we can do with it
+		 * right now.
+		 *
+		 * We also enable reboots and set the timer frequency to
+		 * the PCI clock divided by 2^15 (approx 1KHz).
+		 */
+		pci_write_config_word(esb_pci, ESB_CONFIG_REG, 0x0003);
+
+		/* Check that the WDT isn't already locked */
+		pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
+		if (val1 & ESB_WDT_LOCK)
+			printk(KERN_WARNING PFX "nowayout already set\n");
+
+		/* Set the timer to watchdog mode and disable it for now */
+		pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
+
+		/* Check if the watchdog was previously triggered */
+		esb_unlock_registers();
+		val2 = readw(ESB_RELOAD_REG);
+		triggered = (val2 & (0x01 << 9) >> 9);
+
+		/* Reset trigger flag and timers */
+		esb_unlock_registers();
+		writew((0x11 << 8), ESB_RELOAD_REG);
+
+		/* Done */
+		return 1;
+
+err_release:
+		pci_release_region(esb_pci, 0);
+err_disable:
+		pci_disable_device(esb_pci);
+err_devput:
+		pci_dev_put(esb_pci);
+	}
+	return 0;
+}
+
+static int __init watchdog_init(void)
+{
+	int ret;
+
+	/* Check whether or not the hardware watchdog is there */
+	if (!esb_getdevice() || esb_pci == NULL)
+		return -ENODEV;
+
+	/* Check that the heartbeat value is within it's range;
+	   if not reset to the default */
+	if (esb_timer_set_heartbeat(heartbeat)) {
+		esb_timer_set_heartbeat(WATCHDOG_HEARTBEAT);
+		printk(KERN_INFO PFX
+			"heartbeat value must be 1<heartbeat<2046, using %d\n",
+								heartbeat);
+	}
+	ret = register_reboot_notifier(&esb_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto err_unmap;
+	}
+
+	ret = misc_register(&esb_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto err_notifier;
+	}
+	esb_timer_stop();
+	printk(KERN_INFO PFX
+		"initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
+						BASEADDR, heartbeat, nowayout);
+	return 0;
+
+err_notifier:
+	unregister_reboot_notifier(&esb_notifier);
+err_unmap:
+	iounmap(BASEADDR);
+/* err_release: */
+	pci_release_region(esb_pci, 0);
+/* err_disable: */
+	pci_disable_device(esb_pci);
+/* err_devput: */
+	pci_dev_put(esb_pci);
+	return ret;
+}
+
+static void __exit watchdog_cleanup(void)
+{
+	/* Stop the timer before we leave */
+	if (!nowayout)
+		esb_timer_stop();
+
+	/* Deregister */
+	misc_deregister(&esb_miscdev);
+	unregister_reboot_notifier(&esb_notifier);
+	iounmap(BASEADDR);
+	pci_release_region(esb_pci, 0);
+	pci_disable_device(esb_pci);
+	pci_dev_put(esb_pci);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_cleanup);
+
+MODULE_AUTHOR("Ross Biro and David Härdeman");
+MODULE_DESCRIPTION("Watchdog driver for Intel 6300ESB chipsets");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/iTCO_vendor.h b/drivers/watchdog/iTCO_vendor.h
new file mode 100644
index 0000000..9e27e64
--- /dev/null
+++ b/drivers/watchdog/iTCO_vendor.h
@@ -0,0 +1,15 @@
+/* iTCO Vendor Specific Support hooks */
+#ifdef CONFIG_ITCO_VENDOR_SUPPORT
+extern void iTCO_vendor_pre_start(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_stop(unsigned long);
+extern void iTCO_vendor_pre_keepalive(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_set_heartbeat(unsigned int);
+extern int iTCO_vendor_check_noreboot_on(void);
+#else
+#define iTCO_vendor_pre_start(acpibase, heartbeat)	{}
+#define iTCO_vendor_pre_stop(acpibase)			{}
+#define iTCO_vendor_pre_keepalive(acpibase, heartbeat)	{}
+#define iTCO_vendor_pre_set_heartbeat(heartbeat)	{}
+#define iTCO_vendor_check_noreboot_on()			1
+				/* 1=check noreboot; 0=don't check */
+#endif
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
new file mode 100644
index 0000000..d8264ad
--- /dev/null
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -0,0 +1,312 @@
+/*
+ *	intel TCO vendor specific watchdog driver support
+ *
+ *	(c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Wim Van Sebroeck nor Iguana vzw. admit liability nor
+ *	provide warranty for any of this software. This material is
+ *	provided "AS-IS" and at no charge.
+ */
+
+/*
+ *	Includes, defines, variables, module parameters, ...
+ */
+
+/* Module and version information */
+#define DRV_NAME	"iTCO_vendor_support"
+#define DRV_VERSION	"1.03"
+#define PFX		DRV_NAME ": "
+
+/* Includes */
+#include <linux/module.h>		/* For module specific items */
+#include <linux/moduleparam.h>		/* For new moduleparam's */
+#include <linux/types.h>		/* For standard types (like size_t) */
+#include <linux/errno.h>		/* For the -ENODEV/... values */
+#include <linux/kernel.h>		/* For printk/panic/... */
+#include <linux/init.h>			/* For __init/__exit/... */
+#include <linux/ioport.h>		/* For io-port access */
+#include <linux/io.h>			/* For inb/outb/... */
+
+#include "iTCO_vendor.h"
+
+/* iTCO defines */
+#define	SMI_EN		acpibase + 0x30	/* SMI Control and Enable Register */
+#define	TCOBASE		acpibase + 0x60	/* TCO base address */
+#define	TCO1_STS	TCOBASE + 0x04	/* TCO1 Status Register */
+
+/* List of vendor support modes */
+/* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
+#define SUPERMICRO_OLD_BOARD	1
+/* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems */
+#define SUPERMICRO_NEW_BOARD	2
+
+static int vendorsupport;
+module_param(vendorsupport, int, 0);
+MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+");
+
+/*
+ *	Vendor Specific Support
+ */
+
+/*
+ *	Vendor Support: 1
+ *	Board: Super Micro Computer Inc. 370SSE+-OEM1/P3TSSE
+ *	iTCO chipset: ICH2
+ *
+ *	Code contributed by: R. Seretny <lkpatches@paypc.com>
+ *	Documentation obtained by R. Seretny from SuperMicro Technical Support
+ *
+ *	To enable Watchdog function:
+ *	    BIOS setup -> Power -> TCO Logic SMI Enable -> Within5Minutes
+ *	    This setting enables SMI to clear the watchdog expired flag.
+ *	    If BIOS or CPU fail which may cause SMI hang, then system will
+ *	    reboot. When application starts to use watchdog function,
+ *	    application has to take over the control from SMI.
+ *
+ *	    For P3TSSE, J36 jumper needs to be removed to enable the Watchdog
+ *	    function.
+ *
+ *	    Note: The system will reboot when Expire Flag is set TWICE.
+ *	    So, if the watchdog timer is 20 seconds, then the maximum hang
+ *	    time is about 40 seconds, and the minimum hang time is about
+ *	    20.6 seconds.
+ */
+
+static void supermicro_old_pre_start(unsigned long acpibase)
+{
+	unsigned long val32;
+
+	/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+	val32 = inl(SMI_EN);
+	val32 &= 0xffffdfff;	/* Turn off SMI clearing watchdog */
+	outl(val32, SMI_EN);	/* Needed to activate watchdog */
+}
+
+static void supermicro_old_pre_stop(unsigned long acpibase)
+{
+	unsigned long val32;
+
+	/* Bit 13: TCO_EN -> 1 = Enables the TCO logic to generate SMI# */
+	val32 = inl(SMI_EN);
+	val32 |= 0x00002000;	/* Turn on SMI clearing watchdog */
+	outl(val32, SMI_EN);	/* Needed to deactivate watchdog */
+}
+
+static void supermicro_old_pre_keepalive(unsigned long acpibase)
+{
+	/* Reload TCO Timer (done in iTCO_wdt_keepalive) + */
+	/* Clear "Expire Flag" (Bit 3 of TC01_STS register) */
+	outb(0x08, TCO1_STS);
+}
+
+/*
+ *	Vendor Support: 2
+ *	Board: Super Micro Computer Inc. P4SBx, P4DPx
+ *	iTCO chipset: ICH4
+ *
+ *	Code contributed by: R. Seretny <lkpatches@paypc.com>
+ *	Documentation obtained by R. Seretny from SuperMicro Technical Support
+ *
+ *	To enable Watchdog function:
+ *	 1. BIOS
+ *	  For P4SBx:
+ *	  BIOS setup -> Advanced -> Integrated Peripherals -> Watch Dog Feature
+ *	  For P4DPx:
+ *	  BIOS setup -> Advanced -> I/O Device Configuration -> Watch Dog
+ *	 This setting enables or disables Watchdog function. When enabled, the
+ *	 default watchdog timer is set to be 5 minutes (about 4m35s). It is
+ *	 enough to load and run the OS. The application (service or driver) has
+ *	 to take over the control once OS is running up and before watchdog
+ *	 expires.
+ *
+ *	 2. JUMPER
+ *	  For P4SBx: JP39
+ *	  For P4DPx: JP37
+ *	  This jumper is used for safety.  Closed is enabled. This jumper
+ *	  prevents user enables watchdog in BIOS by accident.
+ *
+ *	 To enable Watch Dog function, both BIOS and JUMPER must be enabled.
+ *
+ *	The documentation lists motherboards P4SBx and P4DPx series as of
+ *	20-March-2002. However, this code works flawlessly with much newer
+ *	motherboards, such as my X6DHR-8G2 (SuperServer 6014H-82).
+ *
+ *	The original iTCO driver as written does not actually reset the
+ *	watchdog timer on these machines, as a result they reboot after five
+ *	minutes.
+ *
+ *	NOTE: You may leave the Watchdog function disabled in the SuperMicro
+ *	BIOS to avoid a "boot-race"... This driver will enable watchdog
+ *	functionality even if it's disabled in the BIOS once the /dev/watchdog
+ *	file is opened.
+ */
+
+/* I/O Port's */
+#define SM_REGINDEX	0x2e	/* SuperMicro ICH4+ Register Index */
+#define SM_DATAIO	0x2f	/* SuperMicro ICH4+ Register Data I/O */
+
+/* Control Register's */
+#define SM_CTLPAGESW	0x07	/* SuperMicro ICH4+ Control Page Switch */
+#define SM_CTLPAGE	0x08	/* SuperMicro ICH4+ Control Page Num */
+
+#define SM_WATCHENABLE	0x30	/* Watchdog enable: Bit 0: 0=off, 1=on */
+
+#define SM_WATCHPAGE	0x87	/* Watchdog unlock control page */
+
+#define SM_ENDWATCH	0xAA	/* Watchdog lock control page */
+
+#define SM_COUNTMODE	0xf5	/* Watchdog count mode select */
+				/* (Bit 3: 0 = seconds, 1 = minutes */
+
+#define SM_WATCHTIMER	0xf6	/* 8-bits, Watchdog timer counter (RW) */
+
+#define SM_RESETCONTROL	0xf7	/* Watchdog reset control */
+				/* Bit 6: timer is reset by kbd interrupt */
+				/* Bit 7: timer is reset by mouse interrupt */
+
+static void supermicro_new_unlock_watchdog(void)
+{
+	/* Write 0x87 to port 0x2e twice */
+	outb(SM_WATCHPAGE, SM_REGINDEX);
+	outb(SM_WATCHPAGE, SM_REGINDEX);
+	/* Switch to watchdog control page */
+	outb(SM_CTLPAGESW, SM_REGINDEX);
+	outb(SM_CTLPAGE, SM_DATAIO);
+}
+
+static void supermicro_new_lock_watchdog(void)
+{
+	outb(SM_ENDWATCH, SM_REGINDEX);
+}
+
+static void supermicro_new_pre_start(unsigned int heartbeat)
+{
+	unsigned int val;
+
+	supermicro_new_unlock_watchdog();
+
+	/* Watchdog timer setting needs to be in seconds*/
+	outb(SM_COUNTMODE, SM_REGINDEX);
+	val = inb(SM_DATAIO);
+	val &= 0xF7;
+	outb(val, SM_DATAIO);
+
+	/* Write heartbeat interval to WDOG */
+	outb(SM_WATCHTIMER, SM_REGINDEX);
+	outb((heartbeat & 255), SM_DATAIO);
+
+	/* Make sure keyboard/mouse interrupts don't interfere */
+	outb(SM_RESETCONTROL, SM_REGINDEX);
+	val = inb(SM_DATAIO);
+	val &= 0x3f;
+	outb(val, SM_DATAIO);
+
+	/* enable watchdog by setting bit 0 of Watchdog Enable to 1 */
+	outb(SM_WATCHENABLE, SM_REGINDEX);
+	val = inb(SM_DATAIO);
+	val |= 0x01;
+	outb(val, SM_DATAIO);
+
+	supermicro_new_lock_watchdog();
+}
+
+static void supermicro_new_pre_stop(void)
+{
+	unsigned int val;
+
+	supermicro_new_unlock_watchdog();
+
+	/* disable watchdog by setting bit 0 of Watchdog Enable to 0 */
+	outb(SM_WATCHENABLE, SM_REGINDEX);
+	val = inb(SM_DATAIO);
+	val &= 0xFE;
+	outb(val, SM_DATAIO);
+
+	supermicro_new_lock_watchdog();
+}
+
+static void supermicro_new_pre_set_heartbeat(unsigned int heartbeat)
+{
+	supermicro_new_unlock_watchdog();
+
+	/* reset watchdog timeout to heartveat value */
+	outb(SM_WATCHTIMER, SM_REGINDEX);
+	outb((heartbeat & 255), SM_DATAIO);
+
+	supermicro_new_lock_watchdog();
+}
+
+/*
+ *	Generic Support Functions
+ */
+
+void iTCO_vendor_pre_start(unsigned long acpibase,
+			   unsigned int heartbeat)
+{
+	if (vendorsupport == SUPERMICRO_OLD_BOARD)
+		supermicro_old_pre_start(acpibase);
+	else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+		supermicro_new_pre_start(heartbeat);
+}
+EXPORT_SYMBOL(iTCO_vendor_pre_start);
+
+void iTCO_vendor_pre_stop(unsigned long acpibase)
+{
+	if (vendorsupport == SUPERMICRO_OLD_BOARD)
+		supermicro_old_pre_stop(acpibase);
+	else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+		supermicro_new_pre_stop();
+}
+EXPORT_SYMBOL(iTCO_vendor_pre_stop);
+
+void iTCO_vendor_pre_keepalive(unsigned long acpibase, unsigned int heartbeat)
+{
+	if (vendorsupport == SUPERMICRO_OLD_BOARD)
+		supermicro_old_pre_keepalive(acpibase);
+	else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+		supermicro_new_pre_set_heartbeat(heartbeat);
+}
+EXPORT_SYMBOL(iTCO_vendor_pre_keepalive);
+
+void iTCO_vendor_pre_set_heartbeat(unsigned int heartbeat)
+{
+	if (vendorsupport == SUPERMICRO_NEW_BOARD)
+		supermicro_new_pre_set_heartbeat(heartbeat);
+}
+EXPORT_SYMBOL(iTCO_vendor_pre_set_heartbeat);
+
+int iTCO_vendor_check_noreboot_on(void)
+{
+	switch (vendorsupport) {
+	case SUPERMICRO_OLD_BOARD:
+		return 0;
+	default:
+		return 1;
+	}
+}
+EXPORT_SYMBOL(iTCO_vendor_check_noreboot_on);
+
+static int __init iTCO_vendor_init_module(void)
+{
+	printk(KERN_INFO PFX "vendor-support=%d\n", vendorsupport);
+	return 0;
+}
+
+static void __exit iTCO_vendor_exit_module(void)
+{
+	printk(KERN_INFO PFX "Module Unloaded\n");
+}
+
+module_init(iTCO_vendor_init_module);
+module_exit(iTCO_vendor_exit_module);
+
+MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>, R. Seretny <lkpatches@paypc.com>");
+MODULE_DESCRIPTION("Intel TCO Vendor Specific WatchDog Timer Driver Support");
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
new file mode 100644
index 0000000..3523349
--- /dev/null
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -0,0 +1,857 @@
+/*
+ *	intel TCO Watchdog Driver (Used in i82801 and i63xxESB chipsets)
+ *
+ *	(c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Wim Van Sebroeck nor Iguana vzw. admit liability nor
+ *	provide warranty for any of this software. This material is
+ *	provided "AS-IS" and at no charge.
+ *
+ *	The TCO watchdog is implemented in the following I/O controller hubs:
+ *	(See the intel documentation on http://developer.intel.com.)
+ *	82801AA  (ICH)       : document number 290655-003, 290677-014,
+ *	82801AB  (ICHO)      : document number 290655-003, 290677-014,
+ *	82801BA  (ICH2)      : document number 290687-002, 298242-027,
+ *	82801BAM (ICH2-M)    : document number 290687-002, 298242-027,
+ *	82801CA  (ICH3-S)    : document number 290733-003, 290739-013,
+ *	82801CAM (ICH3-M)    : document number 290716-001, 290718-007,
+ *	82801DB  (ICH4)      : document number 290744-001, 290745-025,
+ *	82801DBM (ICH4-M)    : document number 252337-001, 252663-008,
+ *	82801E   (C-ICH)     : document number 273599-001, 273645-002,
+ *	82801EB  (ICH5)      : document number 252516-001, 252517-028,
+ *	82801ER  (ICH5R)     : document number 252516-001, 252517-028,
+ *	6300ESB  (6300ESB)   : document number 300641-004, 300884-013,
+ *	82801FB  (ICH6)      : document number 301473-002, 301474-026,
+ *	82801FR  (ICH6R)     : document number 301473-002, 301474-026,
+ *	82801FBM (ICH6-M)    : document number 301473-002, 301474-026,
+ *	82801FW  (ICH6W)     : document number 301473-001, 301474-026,
+ *	82801FRW (ICH6RW)    : document number 301473-001, 301474-026,
+ *	631xESB  (631xESB)   : document number 313082-001, 313075-006,
+ *	632xESB  (632xESB)   : document number 313082-001, 313075-006,
+ *	82801GB  (ICH7)      : document number 307013-003, 307014-024,
+ *	82801GR  (ICH7R)     : document number 307013-003, 307014-024,
+ *	82801GDH (ICH7DH)    : document number 307013-003, 307014-024,
+ *	82801GBM (ICH7-M)    : document number 307013-003, 307014-024,
+ *	82801GHM (ICH7-M DH) : document number 307013-003, 307014-024,
+ *	82801GU  (ICH7-U)    : document number 307013-003, 307014-024,
+ *	82801HB  (ICH8)      : document number 313056-003, 313057-017,
+ *	82801HR  (ICH8R)     : document number 313056-003, 313057-017,
+ *	82801HBM (ICH8M)     : document number 313056-003, 313057-017,
+ *	82801HH  (ICH8DH)    : document number 313056-003, 313057-017,
+ *	82801HO  (ICH8DO)    : document number 313056-003, 313057-017,
+ *	82801HEM (ICH8M-E)   : document number 313056-003, 313057-017,
+ *	82801IB  (ICH9)      : document number 316972-004, 316973-012,
+ *	82801IR  (ICH9R)     : document number 316972-004, 316973-012,
+ *	82801IH  (ICH9DH)    : document number 316972-004, 316973-012,
+ *	82801IO  (ICH9DO)    : document number 316972-004, 316973-012,
+ *	82801IBM (ICH9M)     : document number 316972-004, 316973-012,
+ *	82801IEM (ICH9M-E)   : document number 316972-004, 316973-012,
+ *	82801JIB (ICH10)     : document number 319973-002, 319974-002,
+ *	82801JIR (ICH10R)    : document number 319973-002, 319974-002,
+ *	82801JD  (ICH10D)    : document number 319973-002, 319974-002,
+ *	82801JDO (ICH10DO)   : document number 319973-002, 319974-002
+ */
+
+/*
+ *	Includes, defines, variables, module parameters, ...
+ */
+
+/* Module and version information */
+#define DRV_NAME	"iTCO_wdt"
+#define DRV_VERSION	"1.05"
+#define PFX		DRV_NAME ": "
+
+/* Includes */
+#include <linux/module.h>		/* For module specific items */
+#include <linux/moduleparam.h>		/* For new moduleparam's */
+#include <linux/types.h>		/* For standard types (like size_t) */
+#include <linux/errno.h>		/* For the -ENODEV/... values */
+#include <linux/kernel.h>		/* For printk/panic/... */
+#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV
+							(WATCHDOG_MINOR) */
+#include <linux/watchdog.h>		/* For the watchdog specific items */
+#include <linux/init.h>			/* For __init/__exit/... */
+#include <linux/fs.h>			/* For file operations */
+#include <linux/platform_device.h>	/* For platform_driver framework */
+#include <linux/pci.h>			/* For pci functions */
+#include <linux/ioport.h>		/* For io-port access */
+#include <linux/spinlock.h>		/* For spin_lock/spin_unlock/... */
+#include <linux/uaccess.h>		/* For copy_to_user/put_user/... */
+#include <linux/io.h>			/* For inb/outb/... */
+
+#include "iTCO_vendor.h"
+
+/* TCO related info */
+enum iTCO_chipsets {
+	TCO_ICH = 0,	/* ICH */
+	TCO_ICH0,	/* ICH0 */
+	TCO_ICH2,	/* ICH2 */
+	TCO_ICH2M,	/* ICH2-M */
+	TCO_ICH3,	/* ICH3-S */
+	TCO_ICH3M,	/* ICH3-M */
+	TCO_ICH4,	/* ICH4 */
+	TCO_ICH4M,	/* ICH4-M */
+	TCO_CICH,	/* C-ICH */
+	TCO_ICH5,	/* ICH5 & ICH5R */
+	TCO_6300ESB,	/* 6300ESB */
+	TCO_ICH6,	/* ICH6 & ICH6R */
+	TCO_ICH6M,	/* ICH6-M */
+	TCO_ICH6W,	/* ICH6W & ICH6RW */
+	TCO_631XESB,	/* 631xESB/632xESB */
+	TCO_ICH7,	/* ICH7 & ICH7R */
+	TCO_ICH7DH,	/* ICH7DH */
+	TCO_ICH7M,	/* ICH7-M & ICH7-U */
+	TCO_ICH7MDH,	/* ICH7-M DH */
+	TCO_ICH8,	/* ICH8 & ICH8R */
+	TCO_ICH8DH,	/* ICH8DH */
+	TCO_ICH8DO,	/* ICH8DO */
+	TCO_ICH8M,	/* ICH8M */
+	TCO_ICH8ME,	/* ICH8M-E */
+	TCO_ICH9,	/* ICH9 */
+	TCO_ICH9R,	/* ICH9R */
+	TCO_ICH9DH,	/* ICH9DH */
+	TCO_ICH9DO,	/* ICH9DO */
+	TCO_ICH9M,	/* ICH9M */
+	TCO_ICH9ME,	/* ICH9M-E */
+	TCO_ICH10,	/* ICH10 */
+	TCO_ICH10R,	/* ICH10R */
+	TCO_ICH10D,	/* ICH10D */
+	TCO_ICH10DO,	/* ICH10DO */
+};
+
+static struct {
+	char *name;
+	unsigned int iTCO_version;
+} iTCO_chipset_info[] __devinitdata = {
+	{"ICH", 1},
+	{"ICH0", 1},
+	{"ICH2", 1},
+	{"ICH2-M", 1},
+	{"ICH3-S", 1},
+	{"ICH3-M", 1},
+	{"ICH4", 1},
+	{"ICH4-M", 1},
+	{"C-ICH", 1},
+	{"ICH5 or ICH5R", 1},
+	{"6300ESB", 1},
+	{"ICH6 or ICH6R", 2},
+	{"ICH6-M", 2},
+	{"ICH6W or ICH6RW", 2},
+	{"631xESB/632xESB", 2},
+	{"ICH7 or ICH7R", 2},
+	{"ICH7DH", 2},
+	{"ICH7-M or ICH7-U", 2},
+	{"ICH7-M DH", 2},
+	{"ICH8 or ICH8R", 2},
+	{"ICH8DH", 2},
+	{"ICH8DO", 2},
+	{"ICH8M", 2},
+	{"ICH8M-E", 2},
+	{"ICH9", 2},
+	{"ICH9R", 2},
+	{"ICH9DH", 2},
+	{"ICH9DO", 2},
+	{"ICH9M", 2},
+	{"ICH9M-E", 2},
+	{"ICH10", 2},
+	{"ICH10R", 2},
+	{"ICH10D", 2},
+	{"ICH10DO", 2},
+	{NULL, 0}
+};
+
+#define ITCO_PCI_DEVICE(dev, data) 	\
+	.vendor = PCI_VENDOR_ID_INTEL,	\
+	.device = dev,			\
+	.subvendor = PCI_ANY_ID,	\
+	.subdevice = PCI_ANY_ID,	\
+	.class = 0,			\
+	.class_mask = 0,		\
+	.driver_data = data
+
+/*
+ * This data only exists for exporting the supported PCI ids
+ * via MODULE_DEVICE_TABLE.  We do not actually register a
+ * pci_driver, because the I/O Controller Hub has also other
+ * functions that probably will be registered by other drivers.
+ */
+static struct pci_device_id iTCO_wdt_pci_tbl[] = {
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AA_0,	TCO_ICH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AB_0,	TCO_ICH0)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_0,	TCO_ICH2)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_10,	TCO_ICH2M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801CA_0,	TCO_ICH3)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801CA_12,	TCO_ICH3M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801DB_0,	TCO_ICH4)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801DB_12,	TCO_ICH4M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801E_0,		TCO_CICH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801EB_0,	TCO_ICH5)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ESB_1,		TCO_6300ESB)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_0,		TCO_ICH6)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_1,		TCO_ICH6M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_2,		TCO_ICH6W)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ESB2_0,		TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2671,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2672,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2673,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2674,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2675,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2676,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2677,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2678,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x2679,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x267a,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x267b,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x267c,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x267d,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x267e,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(0x267f,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_0,		TCO_ICH7)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_30,		TCO_ICH7DH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1,		TCO_ICH7M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_31,		TCO_ICH7MDH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0,		TCO_ICH8)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2,		TCO_ICH8DH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3,		TCO_ICH8DO)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_4,		TCO_ICH8M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_1,		TCO_ICH8ME)},
+	{ ITCO_PCI_DEVICE(0x2918,				TCO_ICH9)},
+	{ ITCO_PCI_DEVICE(0x2916,				TCO_ICH9R)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_2,		TCO_ICH9DH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_4,		TCO_ICH9DO)},
+	{ ITCO_PCI_DEVICE(0x2919,				TCO_ICH9M)},
+	{ ITCO_PCI_DEVICE(0x2917,				TCO_ICH9ME)},
+	{ ITCO_PCI_DEVICE(0x3a18,				TCO_ICH10)},
+	{ ITCO_PCI_DEVICE(0x3a16,				TCO_ICH10R)},
+	{ ITCO_PCI_DEVICE(0x3a1a,				TCO_ICH10D)},
+	{ ITCO_PCI_DEVICE(0x3a14,				TCO_ICH10DO)},
+	{ 0, },			/* End of list */
+};
+MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
+
+/* Address definitions for the TCO */
+/* TCO base address */
+#define TCOBASE		iTCO_wdt_private.ACPIBASE + 0x60
+/* SMI Control and Enable Register */
+#define SMI_EN		iTCO_wdt_private.ACPIBASE + 0x30
+
+#define TCO_RLD		TCOBASE + 0x00	/* TCO Timer Reload and Curr. Value */
+#define TCOv1_TMR	TCOBASE + 0x01	/* TCOv1 Timer Initial Value	*/
+#define TCO_DAT_IN	TCOBASE + 0x02	/* TCO Data In Register		*/
+#define TCO_DAT_OUT	TCOBASE + 0x03	/* TCO Data Out Register	*/
+#define TCO1_STS	TCOBASE + 0x04	/* TCO1 Status Register		*/
+#define TCO2_STS	TCOBASE + 0x06	/* TCO2 Status Register		*/
+#define TCO1_CNT	TCOBASE + 0x08	/* TCO1 Control Register	*/
+#define TCO2_CNT	TCOBASE + 0x0a	/* TCO2 Control Register	*/
+#define TCOv2_TMR	TCOBASE + 0x12	/* TCOv2 Timer Initial Value	*/
+
+/* internal variables */
+static unsigned long is_active;
+static char expect_release;
+static struct {		/* this is private data for the iTCO_wdt device */
+	/* TCO version/generation */
+	unsigned int iTCO_version;
+	/* The cards ACPIBASE address (TCOBASE = ACPIBASE+0x60) */
+	unsigned long ACPIBASE;
+	/* NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2)*/
+	unsigned long __iomem *gcs;
+	/* the lock for io operations */
+	spinlock_t io_lock;
+	/* the PCI-device */
+	struct pci_dev *pdev;
+} iTCO_wdt_private;
+
+/* the watchdog platform device */
+static struct platform_device *iTCO_wdt_platform_device;
+
+/* module parameters */
+#define WATCHDOG_HEARTBEAT 30	/* 30 sec default heartbeat */
+static int heartbeat = WATCHDOG_HEARTBEAT;  /* in seconds */
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * Some TCO specific functions
+ */
+
+static inline unsigned int seconds_to_ticks(int seconds)
+{
+	/* the internal timer is stored as ticks which decrement
+	 * every 0.6 seconds */
+	return (seconds * 10) / 6;
+}
+
+static void iTCO_wdt_set_NO_REBOOT_bit(void)
+{
+	u32 val32;
+
+	/* Set the NO_REBOOT bit: this disables reboots */
+	if (iTCO_wdt_private.iTCO_version == 2) {
+		val32 = readl(iTCO_wdt_private.gcs);
+		val32 |= 0x00000020;
+		writel(val32, iTCO_wdt_private.gcs);
+	} else if (iTCO_wdt_private.iTCO_version == 1) {
+		pci_read_config_dword(iTCO_wdt_private.pdev, 0xd4, &val32);
+		val32 |= 0x00000002;
+		pci_write_config_dword(iTCO_wdt_private.pdev, 0xd4, val32);
+	}
+}
+
+static int iTCO_wdt_unset_NO_REBOOT_bit(void)
+{
+	int ret = 0;
+	u32 val32;
+
+	/* Unset the NO_REBOOT bit: this enables reboots */
+	if (iTCO_wdt_private.iTCO_version == 2) {
+		val32 = readl(iTCO_wdt_private.gcs);
+		val32 &= 0xffffffdf;
+		writel(val32, iTCO_wdt_private.gcs);
+
+		val32 = readl(iTCO_wdt_private.gcs);
+		if (val32 & 0x00000020)
+			ret = -EIO;
+	} else if (iTCO_wdt_private.iTCO_version == 1) {
+		pci_read_config_dword(iTCO_wdt_private.pdev, 0xd4, &val32);
+		val32 &= 0xfffffffd;
+		pci_write_config_dword(iTCO_wdt_private.pdev, 0xd4, val32);
+
+		pci_read_config_dword(iTCO_wdt_private.pdev, 0xd4, &val32);
+		if (val32 & 0x00000002)
+			ret = -EIO;
+	}
+
+	return ret; /* returns: 0 = OK, -EIO = Error */
+}
+
+static int iTCO_wdt_start(void)
+{
+	unsigned int val;
+
+	spin_lock(&iTCO_wdt_private.io_lock);
+
+	iTCO_vendor_pre_start(iTCO_wdt_private.ACPIBASE, heartbeat);
+
+	/* disable chipset's NO_REBOOT bit */
+	if (iTCO_wdt_unset_NO_REBOOT_bit()) {
+		spin_unlock(&iTCO_wdt_private.io_lock);
+		printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
+		return -EIO;
+	}
+
+	/* Force the timer to its reload value by writing to the TCO_RLD
+	   register */
+	if (iTCO_wdt_private.iTCO_version == 2)
+		outw(0x01, TCO_RLD);
+	else if (iTCO_wdt_private.iTCO_version == 1)
+		outb(0x01, TCO_RLD);
+
+	/* Bit 11: TCO Timer Halt -> 0 = The TCO timer is enabled to count */
+	val = inw(TCO1_CNT);
+	val &= 0xf7ff;
+	outw(val, TCO1_CNT);
+	val = inw(TCO1_CNT);
+	spin_unlock(&iTCO_wdt_private.io_lock);
+
+	if (val & 0x0800)
+		return -1;
+	return 0;
+}
+
+static int iTCO_wdt_stop(void)
+{
+	unsigned int val;
+
+	spin_lock(&iTCO_wdt_private.io_lock);
+
+	iTCO_vendor_pre_stop(iTCO_wdt_private.ACPIBASE);
+
+	/* Bit 11: TCO Timer Halt -> 1 = The TCO timer is disabled */
+	val = inw(TCO1_CNT);
+	val |= 0x0800;
+	outw(val, TCO1_CNT);
+	val = inw(TCO1_CNT);
+
+	/* Set the NO_REBOOT bit to prevent later reboots, just for sure */
+	iTCO_wdt_set_NO_REBOOT_bit();
+
+	spin_unlock(&iTCO_wdt_private.io_lock);
+
+	if ((val & 0x0800) == 0)
+		return -1;
+	return 0;
+}
+
+static int iTCO_wdt_keepalive(void)
+{
+	spin_lock(&iTCO_wdt_private.io_lock);
+
+	iTCO_vendor_pre_keepalive(iTCO_wdt_private.ACPIBASE, heartbeat);
+
+	/* Reload the timer by writing to the TCO Timer Counter register */
+	if (iTCO_wdt_private.iTCO_version == 2)
+		outw(0x01, TCO_RLD);
+	else if (iTCO_wdt_private.iTCO_version == 1)
+		outb(0x01, TCO_RLD);
+
+	spin_unlock(&iTCO_wdt_private.io_lock);
+	return 0;
+}
+
+static int iTCO_wdt_set_heartbeat(int t)
+{
+	unsigned int val16;
+	unsigned char val8;
+	unsigned int tmrval;
+
+	tmrval = seconds_to_ticks(t);
+	/* from the specs: */
+	/* "Values of 0h-3h are ignored and should not be attempted" */
+	if (tmrval < 0x04)
+		return -EINVAL;
+	if (((iTCO_wdt_private.iTCO_version == 2) && (tmrval > 0x3ff)) ||
+	    ((iTCO_wdt_private.iTCO_version == 1) && (tmrval > 0x03f)))
+		return -EINVAL;
+
+	iTCO_vendor_pre_set_heartbeat(tmrval);
+
+	/* Write new heartbeat to watchdog */
+	if (iTCO_wdt_private.iTCO_version == 2) {
+		spin_lock(&iTCO_wdt_private.io_lock);
+		val16 = inw(TCOv2_TMR);
+		val16 &= 0xfc00;
+		val16 |= tmrval;
+		outw(val16, TCOv2_TMR);
+		val16 = inw(TCOv2_TMR);
+		spin_unlock(&iTCO_wdt_private.io_lock);
+
+		if ((val16 & 0x3ff) != tmrval)
+			return -EINVAL;
+	} else if (iTCO_wdt_private.iTCO_version == 1) {
+		spin_lock(&iTCO_wdt_private.io_lock);
+		val8 = inb(TCOv1_TMR);
+		val8 &= 0xc0;
+		val8 |= (tmrval & 0xff);
+		outb(val8, TCOv1_TMR);
+		val8 = inb(TCOv1_TMR);
+		spin_unlock(&iTCO_wdt_private.io_lock);
+
+		if ((val8 & 0x3f) != tmrval)
+			return -EINVAL;
+	}
+
+	heartbeat = t;
+	return 0;
+}
+
+static int iTCO_wdt_get_timeleft(int *time_left)
+{
+	unsigned int val16;
+	unsigned char val8;
+
+	/* read the TCO Timer */
+	if (iTCO_wdt_private.iTCO_version == 2) {
+		spin_lock(&iTCO_wdt_private.io_lock);
+		val16 = inw(TCO_RLD);
+		val16 &= 0x3ff;
+		spin_unlock(&iTCO_wdt_private.io_lock);
+
+		*time_left = (val16 * 6) / 10;
+	} else if (iTCO_wdt_private.iTCO_version == 1) {
+		spin_lock(&iTCO_wdt_private.io_lock);
+		val8 = inb(TCO_RLD);
+		val8 &= 0x3f;
+		spin_unlock(&iTCO_wdt_private.io_lock);
+
+		*time_left = (val8 * 6) / 10;
+	} else
+		return -EINVAL;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static int iTCO_wdt_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &is_active))
+		return -EBUSY;
+
+	/*
+	 *      Reload and activate timer
+	 */
+	iTCO_wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+static int iTCO_wdt_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *      Shut off the timer.
+	 */
+	if (expect_release == 42) {
+		iTCO_wdt_stop();
+	} else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		iTCO_wdt_keepalive();
+	}
+	clear_bit(0, &is_active);
+	expect_release = 0;
+	return 0;
+}
+
+static ssize_t iTCO_wdt_write(struct file *file, const char __user *data,
+			      size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* note: just in case someone wrote the magic
+			   character five months ago... */
+			expect_release = 0;
+
+			/* scan to see whether or not we got the
+			   magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_release = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		iTCO_wdt_keepalive();
+	}
+	return len;
+}
+
+static long iTCO_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int new_options, retval = -EINVAL;
+	int new_heartbeat;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	0,
+		.identity =		DRV_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		if (get_user(new_options, p))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			iTCO_wdt_stop();
+			retval = 0;
+		}
+		if (new_options & WDIOS_ENABLECARD) {
+			iTCO_wdt_keepalive();
+			iTCO_wdt_start();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		iTCO_wdt_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+	{
+		if (get_user(new_heartbeat, p))
+			return -EFAULT;
+		if (iTCO_wdt_set_heartbeat(new_heartbeat))
+			return -EINVAL;
+		iTCO_wdt_keepalive();
+		/* Fall */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+	case WDIOC_GETTIMELEFT:
+	{
+		int time_left;
+		if (iTCO_wdt_get_timeleft(&time_left))
+			return -EINVAL;
+		return put_user(time_left, p);
+	}
+	default:
+		return -ENOTTY;
+	}
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations iTCO_wdt_fops = {
+	.owner =		THIS_MODULE,
+	.llseek =		no_llseek,
+	.write =		iTCO_wdt_write,
+	.unlocked_ioctl =	iTCO_wdt_ioctl,
+	.open =			iTCO_wdt_open,
+	.release =		iTCO_wdt_release,
+};
+
+static struct miscdevice iTCO_wdt_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&iTCO_wdt_fops,
+};
+
+/*
+ *	Init & exit routines
+ */
+
+static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
+		const struct pci_device_id *ent, struct platform_device *dev)
+{
+	int ret;
+	u32 base_address;
+	unsigned long RCBA;
+	unsigned long val32;
+
+	/*
+	 *      Find the ACPI/PM base I/O address which is the base
+	 *      for the TCO registers (TCOBASE=ACPIBASE + 0x60)
+	 *      ACPIBASE is bits [15:7] from 0x40-0x43
+	 */
+	pci_read_config_dword(pdev, 0x40, &base_address);
+	base_address &= 0x0000ff80;
+	if (base_address == 0x00000000) {
+		/* Something's wrong here, ACPIBASE has to be set */
+		printk(KERN_ERR PFX "failed to get TCOBASE address\n");
+		pci_dev_put(pdev);
+		return -ENODEV;
+	}
+	iTCO_wdt_private.iTCO_version =
+			iTCO_chipset_info[ent->driver_data].iTCO_version;
+	iTCO_wdt_private.ACPIBASE = base_address;
+	iTCO_wdt_private.pdev = pdev;
+
+	/* Get the Memory-Mapped GCS register, we need it for the
+	   NO_REBOOT flag (TCO v2). To get access to it you have to
+	   read RCBA from PCI Config space 0xf0 and use it as base.
+	   GCS = RCBA + ICH6_GCS(0x3410). */
+	if (iTCO_wdt_private.iTCO_version == 2) {
+		pci_read_config_dword(pdev, 0xf0, &base_address);
+		RCBA = base_address & 0xffffc000;
+		iTCO_wdt_private.gcs = ioremap((RCBA + 0x3410), 4);
+	}
+
+	/* Check chipset's NO_REBOOT bit */
+	if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
+		printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
+		ret = -ENODEV;	/* Cannot reset NO_REBOOT bit */
+		goto out;
+	}
+
+	/* Set the NO_REBOOT bit to prevent later reboots, just for sure */
+	iTCO_wdt_set_NO_REBOOT_bit();
+
+	/* The TCO logic uses the TCO_EN bit in the SMI_EN register */
+	if (!request_region(SMI_EN, 4, "iTCO_wdt")) {
+		printk(KERN_ERR PFX
+			"I/O address 0x%04lx already in use\n", SMI_EN);
+		ret = -EIO;
+		goto out;
+	}
+	/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+	val32 = inl(SMI_EN);
+	val32 &= 0xffffdfff;	/* Turn off SMI clearing watchdog */
+	outl(val32, SMI_EN);
+
+	/* The TCO I/O registers reside in a 32-byte range pointed to
+	   by the TCOBASE value */
+	if (!request_region(TCOBASE, 0x20, "iTCO_wdt")) {
+		printk(KERN_ERR PFX "I/O address 0x%04lx already in use\n",
+			TCOBASE);
+		ret = -EIO;
+		goto unreg_smi_en;
+	}
+
+	printk(KERN_INFO PFX
+		"Found a %s TCO device (Version=%d, TCOBASE=0x%04lx)\n",
+			iTCO_chipset_info[ent->driver_data].name,
+			iTCO_chipset_info[ent->driver_data].iTCO_version,
+			TCOBASE);
+
+	/* Clear out the (probably old) status */
+	outb(8, TCO1_STS);	/* Clear the Time Out Status bit */
+	outb(2, TCO2_STS);	/* Clear SECOND_TO_STS bit */
+	outb(4, TCO2_STS);	/* Clear BOOT_STS bit */
+
+	/* Make sure the watchdog is not running */
+	iTCO_wdt_stop();
+
+	/* Check that the heartbeat value is within it's range;
+	   if not reset to the default */
+	if (iTCO_wdt_set_heartbeat(heartbeat)) {
+		iTCO_wdt_set_heartbeat(WATCHDOG_HEARTBEAT);
+		printk(KERN_INFO PFX "heartbeat value must be 2 < heartbeat < 39 (TCO v1) or 613 (TCO v2), using %d\n",
+							heartbeat);
+	}
+
+	ret = misc_register(&iTCO_wdt_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto unreg_region;
+	}
+
+	printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+							heartbeat, nowayout);
+
+	return 0;
+
+unreg_region:
+	release_region(TCOBASE, 0x20);
+unreg_smi_en:
+	release_region(SMI_EN, 4);
+out:
+	if (iTCO_wdt_private.iTCO_version == 2)
+		iounmap(iTCO_wdt_private.gcs);
+	pci_dev_put(iTCO_wdt_private.pdev);
+	iTCO_wdt_private.ACPIBASE = 0;
+	return ret;
+}
+
+static void __devexit iTCO_wdt_cleanup(void)
+{
+	/* Stop the timer before we leave */
+	if (!nowayout)
+		iTCO_wdt_stop();
+
+	/* Deregister */
+	misc_deregister(&iTCO_wdt_miscdev);
+	release_region(TCOBASE, 0x20);
+	release_region(SMI_EN, 4);
+	if (iTCO_wdt_private.iTCO_version == 2)
+		iounmap(iTCO_wdt_private.gcs);
+	pci_dev_put(iTCO_wdt_private.pdev);
+	iTCO_wdt_private.ACPIBASE = 0;
+}
+
+static int __devinit iTCO_wdt_probe(struct platform_device *dev)
+{
+	int found = 0;
+	struct pci_dev *pdev = NULL;
+	const struct pci_device_id *ent;
+
+	spin_lock_init(&iTCO_wdt_private.io_lock);
+
+	for_each_pci_dev(pdev) {
+		ent = pci_match_id(iTCO_wdt_pci_tbl, pdev);
+		if (ent) {
+			if (!(iTCO_wdt_init(pdev, ent, dev))) {
+				found++;
+				break;
+			}
+		}
+	}
+
+	if (!found) {
+		printk(KERN_INFO PFX "No card detected\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int __devexit iTCO_wdt_remove(struct platform_device *dev)
+{
+	if (iTCO_wdt_private.ACPIBASE)
+		iTCO_wdt_cleanup();
+
+	return 0;
+}
+
+static void iTCO_wdt_shutdown(struct platform_device *dev)
+{
+	iTCO_wdt_stop();
+}
+
+#define iTCO_wdt_suspend NULL
+#define iTCO_wdt_resume  NULL
+
+static struct platform_driver iTCO_wdt_driver = {
+	.probe          = iTCO_wdt_probe,
+	.remove         = __devexit_p(iTCO_wdt_remove),
+	.shutdown       = iTCO_wdt_shutdown,
+	.suspend        = iTCO_wdt_suspend,
+	.resume         = iTCO_wdt_resume,
+	.driver         = {
+		.owner  = THIS_MODULE,
+		.name   = DRV_NAME,
+	},
+};
+
+static int __init iTCO_wdt_init_module(void)
+{
+	int err;
+
+	printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s\n",
+		DRV_VERSION);
+
+	err = platform_driver_register(&iTCO_wdt_driver);
+	if (err)
+		return err;
+
+	iTCO_wdt_platform_device = platform_device_register_simple(DRV_NAME,
+								-1, NULL, 0);
+	if (IS_ERR(iTCO_wdt_platform_device)) {
+		err = PTR_ERR(iTCO_wdt_platform_device);
+		goto unreg_platform_driver;
+	}
+
+	return 0;
+
+unreg_platform_driver:
+	platform_driver_unregister(&iTCO_wdt_driver);
+	return err;
+}
+
+static void __exit iTCO_wdt_cleanup_module(void)
+{
+	platform_device_unregister(iTCO_wdt_platform_device);
+	platform_driver_unregister(&iTCO_wdt_driver);
+	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+}
+
+module_init(iTCO_wdt_init_module);
+module_exit(iTCO_wdt_cleanup_module);
+
+MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
+MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver");
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c
new file mode 100644
index 0000000..317ef2b
--- /dev/null
+++ b/drivers/watchdog/ib700wdt.c
@@ -0,0 +1,403 @@
+/*
+ *	IB700 Single Board Computer WDT driver
+ *
+ *	(c) Copyright 2001 Charles Howes <chowes@vsol.net>
+ *
+ *	Based on advantechwdt.c which is based on acquirewdt.c which
+ *	is based on wdt.c.
+ *
+ *	(c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
+ *
+ *	Based on acquirewdt.c which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *	14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *	     Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ *	     Added timeout module option to override default
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+static struct platform_device *ibwdt_platform_device;
+static unsigned long ibwdt_is_open;
+static DEFINE_SPINLOCK(ibwdt_lock);
+static char expect_close;
+
+/* Module information */
+#define DRV_NAME "ib700wdt"
+#define PFX DRV_NAME ": "
+
+/*
+ *
+ * Watchdog Timer Configuration
+ *
+ * The function of the watchdog timer is to reset the system
+ * automatically and is defined at I/O port 0443H.  To enable the
+ * watchdog timer and allow the system to reset, write I/O port 0443H.
+ * To disable the timer, write I/O port 0441H for the system to stop the
+ * watchdog function.  The timer has a tolerance of 20% for its
+ * intervals.
+ *
+ * The following describes how the timer should be programmed.
+ *
+ * Enabling Watchdog:
+ * MOV AX,000FH (Choose the values from 0 to F)
+ * MOV DX,0443H
+ * OUT DX,AX
+ *
+ * Disabling Watchdog:
+ * MOV AX,000FH (Any value is fine.)
+ * MOV DX,0441H
+ * OUT DX,AX
+ *
+ * Watchdog timer control table:
+ * Level   Value  Time/sec | Level Value Time/sec
+ *   1       F       0     |   9     7      16
+ *   2       E       2     |   10    6      18
+ *   3       D       4     |   11    5      20
+ *   4       C       6     |   12    4      22
+ *   5       B       8     |   13    3      24
+ *   6       A       10    |   14    2      26
+ *   7       9       12    |   15    1      28
+ *   8       8       14    |   16    0      30
+ *
+ */
+
+static int wd_times[] = {
+	30,	/* 0x0 */
+	28,	/* 0x1 */
+	26,	/* 0x2 */
+	24,	/* 0x3 */
+	22,	/* 0x4 */
+	20,	/* 0x5 */
+	18,	/* 0x6 */
+	16,	/* 0x7 */
+	14,	/* 0x8 */
+	12,	/* 0x9 */
+	10,	/* 0xA */
+	8,	/* 0xB */
+	6,	/* 0xC */
+	4,	/* 0xD */
+	2,	/* 0xE */
+	0,	/* 0xF */
+};
+
+#define WDT_STOP 0x441
+#define WDT_START 0x443
+
+/* Default timeout */
+#define WD_TIMO 0		/* 30 seconds +/- 20%, from table */
+
+static int wd_margin = WD_TIMO;
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+
+/*
+ *	Watchdog Operations
+ */
+
+static void ibwdt_ping(void)
+{
+	spin_lock(&ibwdt_lock);
+
+	/* Write a watchdog value */
+	outb_p(wd_margin, WDT_START);
+
+	spin_unlock(&ibwdt_lock);
+}
+
+static void ibwdt_disable(void)
+{
+	spin_lock(&ibwdt_lock);
+	outb_p(0, WDT_STOP);
+	spin_unlock(&ibwdt_lock);
+}
+
+static int ibwdt_set_heartbeat(int t)
+{
+	int i;
+
+	if ((t < 0) || (t > 30))
+		return -EINVAL;
+
+	for (i = 0x0F; i > -1; i--)
+		if (wd_times[i] >= t)
+			break;
+	wd_margin = i;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static ssize_t ibwdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		ibwdt_ping();
+	}
+	return count;
+}
+
+static long ibwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int new_margin;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+							| WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "IB700 WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			ibwdt_disable();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			ibwdt_ping();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		ibwdt_ping();
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, p))
+			return -EFAULT;
+		if (ibwdt_set_heartbeat(new_margin))
+			return -EINVAL;
+		ibwdt_ping();
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(wd_times[wd_margin], p);
+
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int ibwdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &ibwdt_is_open))
+		return -EBUSY;
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Activate */
+	ibwdt_ping();
+	return nonseekable_open(inode, file);
+}
+
+static int ibwdt_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		ibwdt_disable();
+	} else {
+		printk(KERN_CRIT PFX
+		     "WDT device closed unexpectedly.  WDT will not stop!\n");
+		ibwdt_ping();
+	}
+	clear_bit(0, &ibwdt_is_open);
+	expect_close = 0;
+	return 0;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations ibwdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= ibwdt_write,
+	.unlocked_ioctl	= ibwdt_ioctl,
+	.open		= ibwdt_open,
+	.release	= ibwdt_close,
+};
+
+static struct miscdevice ibwdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &ibwdt_fops,
+};
+
+/*
+ *	Init & exit routines
+ */
+
+static int __devinit ibwdt_probe(struct platform_device *dev)
+{
+	int res;
+
+#if WDT_START != WDT_STOP
+	if (!request_region(WDT_STOP, 1, "IB700 WDT")) {
+		printk(KERN_ERR PFX "STOP method I/O %X is not available.\n",
+								WDT_STOP);
+		res = -EIO;
+		goto out_nostopreg;
+	}
+#endif
+
+	if (!request_region(WDT_START, 1, "IB700 WDT")) {
+		printk(KERN_ERR PFX "START method I/O %X is not available.\n",
+								WDT_START);
+		res = -EIO;
+		goto out_nostartreg;
+	}
+
+	res = misc_register(&ibwdt_miscdev);
+	if (res) {
+		printk(KERN_ERR PFX "failed to register misc device\n");
+		goto out_nomisc;
+	}
+	return 0;
+
+out_nomisc:
+	release_region(WDT_START, 1);
+out_nostartreg:
+#if WDT_START != WDT_STOP
+	release_region(WDT_STOP, 1);
+#endif
+out_nostopreg:
+	return res;
+}
+
+static int __devexit ibwdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&ibwdt_miscdev);
+	release_region(WDT_START, 1);
+#if WDT_START != WDT_STOP
+	release_region(WDT_STOP, 1);
+#endif
+	return 0;
+}
+
+static void ibwdt_shutdown(struct platform_device *dev)
+{
+	/* Turn the WDT off if we have a soft shutdown */
+	ibwdt_disable();
+}
+
+static struct platform_driver ibwdt_driver = {
+	.probe		= ibwdt_probe,
+	.remove		= __devexit_p(ibwdt_remove),
+	.shutdown	= ibwdt_shutdown,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= DRV_NAME,
+	},
+};
+
+static int __init ibwdt_init(void)
+{
+	int err;
+
+	printk(KERN_INFO PFX
+		"WDT driver for IB700 single board computer initialising.\n");
+
+	err = platform_driver_register(&ibwdt_driver);
+	if (err)
+		return err;
+
+	ibwdt_platform_device = platform_device_register_simple(DRV_NAME,
+								-1, NULL, 0);
+	if (IS_ERR(ibwdt_platform_device)) {
+		err = PTR_ERR(ibwdt_platform_device);
+		goto unreg_platform_driver;
+	}
+
+	return 0;
+
+unreg_platform_driver:
+	platform_driver_unregister(&ibwdt_driver);
+	return err;
+}
+
+static void __exit ibwdt_exit(void)
+{
+	platform_device_unregister(ibwdt_platform_device);
+	platform_driver_unregister(&ibwdt_driver);
+	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+}
+
+module_init(ibwdt_init);
+module_exit(ibwdt_exit);
+
+MODULE_AUTHOR("Charles Howes <chowes@vsol.net>");
+MODULE_DESCRIPTION("IB700 SBC watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+/* end of ib700wdt.c */
diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c
new file mode 100644
index 0000000..89fcefc
--- /dev/null
+++ b/drivers/watchdog/ibmasr.c
@@ -0,0 +1,427 @@
+/*
+ * IBM Automatic Server Restart driver.
+ *
+ * Copyright (c) 2005 Andrey Panin <pazke@donpac.ru>
+ *
+ * Based on driver written by Pete Reynolds.
+ * Copyright (c) IBM Corporation, 1998-2004.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU Public License, incorporated herein by reference.
+ */
+
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/dmi.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+
+enum {
+	ASMTYPE_UNKNOWN,
+	ASMTYPE_TOPAZ,
+	ASMTYPE_JASPER,
+	ASMTYPE_PEARL,
+	ASMTYPE_JUNIPER,
+	ASMTYPE_SPRUCE,
+};
+
+#define PFX "ibmasr: "
+
+#define TOPAZ_ASR_REG_OFFSET	4
+#define TOPAZ_ASR_TOGGLE	0x40
+#define TOPAZ_ASR_DISABLE	0x80
+
+/* PEARL ASR S/W REGISTER SUPERIO PORT ADDRESSES */
+#define PEARL_BASE	0xe04
+#define PEARL_WRITE	0xe06
+#define PEARL_READ	0xe07
+
+#define PEARL_ASR_DISABLE_MASK	0x80	/* bit 7: disable = 1, enable = 0 */
+#define PEARL_ASR_TOGGLE_MASK	0x40	/* bit 6: 0, then 1, then 0 */
+
+/* JASPER OFFSET FROM SIO BASE ADDR TO ASR S/W REGISTERS. */
+#define JASPER_ASR_REG_OFFSET	0x38
+
+#define JASPER_ASR_DISABLE_MASK	0x01	/* bit 0: disable = 1, enable = 0 */
+#define JASPER_ASR_TOGGLE_MASK	0x02	/* bit 1: 0, then 1, then 0 */
+
+#define JUNIPER_BASE_ADDRESS	0x54b	/* Base address of Juniper ASR */
+#define JUNIPER_ASR_DISABLE_MASK 0x01	/* bit 0: disable = 1 enable = 0 */
+#define JUNIPER_ASR_TOGGLE_MASK	0x02	/* bit 1: 0, then 1, then 0 */
+
+#define SPRUCE_BASE_ADDRESS	0x118e	/* Base address of Spruce ASR */
+#define SPRUCE_ASR_DISABLE_MASK	0x01	/* bit 1: disable = 1 enable = 0 */
+#define SPRUCE_ASR_TOGGLE_MASK	0x02	/* bit 0: 0, then 1, then 0 */
+
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+static unsigned long asr_is_open;
+static char asr_expect_close;
+
+static unsigned int asr_type, asr_base, asr_length;
+static unsigned int asr_read_addr, asr_write_addr;
+static unsigned char asr_toggle_mask, asr_disable_mask;
+static spinlock_t asr_lock;
+
+static void __asr_toggle(void)
+{
+	unsigned char reg;
+
+	reg = inb(asr_read_addr);
+
+	outb(reg & ~asr_toggle_mask, asr_write_addr);
+	reg = inb(asr_read_addr);
+
+	outb(reg | asr_toggle_mask, asr_write_addr);
+	reg = inb(asr_read_addr);
+
+	outb(reg & ~asr_toggle_mask, asr_write_addr);
+	reg = inb(asr_read_addr);
+}
+
+static void asr_toggle(void)
+{
+	spin_lock(&asr_lock);
+	__asr_toggle();
+	spin_unlock(&asr_lock);
+}
+
+static void asr_enable(void)
+{
+	unsigned char reg;
+
+	spin_lock(&asr_lock);
+	if (asr_type == ASMTYPE_TOPAZ) {
+		/* asr_write_addr == asr_read_addr */
+		reg = inb(asr_read_addr);
+		outb(reg & ~(TOPAZ_ASR_TOGGLE | TOPAZ_ASR_DISABLE),
+		     asr_read_addr);
+	} else {
+		/*
+		 * First make sure the hardware timer is reset by toggling
+		 * ASR hardware timer line.
+		 */
+		__asr_toggle();
+
+		reg = inb(asr_read_addr);
+		outb(reg & ~asr_disable_mask, asr_write_addr);
+	}
+	reg = inb(asr_read_addr);
+	spin_unlock(&asr_lock);
+}
+
+static void asr_disable(void)
+{
+	unsigned char reg;
+
+	spin_lock(&asr_lock);
+	reg = inb(asr_read_addr);
+
+	if (asr_type == ASMTYPE_TOPAZ)
+		/* asr_write_addr == asr_read_addr */
+		outb(reg | TOPAZ_ASR_TOGGLE | TOPAZ_ASR_DISABLE,
+		     asr_read_addr);
+	else {
+		outb(reg | asr_toggle_mask, asr_write_addr);
+		reg = inb(asr_read_addr);
+
+		outb(reg | asr_disable_mask, asr_write_addr);
+	}
+	reg = inb(asr_read_addr);
+	spin_unlock(&asr_lock);
+}
+
+static int __init asr_get_base_address(void)
+{
+	unsigned char low, high;
+	const char *type = "";
+
+	asr_length = 1;
+
+	switch (asr_type) {
+	case ASMTYPE_TOPAZ:
+		/* SELECT SuperIO CHIP FOR QUERYING
+		   (WRITE 0x07 TO BOTH 0x2E and 0x2F) */
+		outb(0x07, 0x2e);
+		outb(0x07, 0x2f);
+
+		/* SELECT AND READ THE HIGH-NIBBLE OF THE GPIO BASE ADDRESS */
+		outb(0x60, 0x2e);
+		high = inb(0x2f);
+
+		/* SELECT AND READ THE LOW-NIBBLE OF THE GPIO BASE ADDRESS */
+		outb(0x61, 0x2e);
+		low = inb(0x2f);
+
+		asr_base = (high << 16) | low;
+		asr_read_addr = asr_write_addr =
+			asr_base + TOPAZ_ASR_REG_OFFSET;
+		asr_length = 5;
+
+		break;
+
+	case ASMTYPE_JASPER:
+		type = "Jaspers ";
+#if 0
+		u32 r;
+		/* Suggested fix */
+		pdev = pci_get_bus_and_slot(0, DEVFN(0x1f, 0));
+		if (pdev == NULL)
+			return -ENODEV;
+		pci_read_config_dword(pdev, 0x58, &r);
+		asr_base = r & 0xFFFE;
+		pci_dev_put(pdev);
+#else
+		/* FIXME: need to use pci_config_lock here,
+		   but it's not exported */
+
+/*		spin_lock_irqsave(&pci_config_lock, flags);*/
+
+		/* Select the SuperIO chip in the PCI I/O port register */
+		outl(0x8000f858, 0xcf8);
+
+		/* BUS 0, Slot 1F, fnc 0, offset 58 */
+
+		/*
+		 * Read the base address for the SuperIO chip.
+		 * Only the lower 16 bits are valid, but the address is word
+		 * aligned so the last bit must be masked off.
+		 */
+		asr_base = inl(0xcfc) & 0xfffe;
+
+/*		spin_unlock_irqrestore(&pci_config_lock, flags);*/
+#endif
+		asr_read_addr = asr_write_addr =
+			asr_base + JASPER_ASR_REG_OFFSET;
+		asr_toggle_mask = JASPER_ASR_TOGGLE_MASK;
+		asr_disable_mask = JASPER_ASR_DISABLE_MASK;
+		asr_length = JASPER_ASR_REG_OFFSET + 1;
+
+		break;
+
+	case ASMTYPE_PEARL:
+		type = "Pearls ";
+		asr_base = PEARL_BASE;
+		asr_read_addr = PEARL_READ;
+		asr_write_addr = PEARL_WRITE;
+		asr_toggle_mask = PEARL_ASR_TOGGLE_MASK;
+		asr_disable_mask = PEARL_ASR_DISABLE_MASK;
+		asr_length = 4;
+		break;
+
+	case ASMTYPE_JUNIPER:
+		type = "Junipers ";
+		asr_base = JUNIPER_BASE_ADDRESS;
+		asr_read_addr = asr_write_addr = asr_base;
+		asr_toggle_mask = JUNIPER_ASR_TOGGLE_MASK;
+		asr_disable_mask = JUNIPER_ASR_DISABLE_MASK;
+		break;
+
+	case ASMTYPE_SPRUCE:
+		type = "Spruce's ";
+		asr_base = SPRUCE_BASE_ADDRESS;
+		asr_read_addr = asr_write_addr = asr_base;
+		asr_toggle_mask = SPRUCE_ASR_TOGGLE_MASK;
+		asr_disable_mask = SPRUCE_ASR_DISABLE_MASK;
+		break;
+	}
+
+	if (!request_region(asr_base, asr_length, "ibmasr")) {
+		printk(KERN_ERR PFX "address %#x already in use\n",
+			asr_base);
+		return -EBUSY;
+	}
+
+	printk(KERN_INFO PFX "found %sASR @ addr %#x\n", type, asr_base);
+
+	return 0;
+}
+
+
+static ssize_t asr_write(struct file *file, const char __user *buf,
+			 size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			asr_expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					asr_expect_close = 42;
+			}
+		}
+		asr_toggle();
+	}
+	return count;
+}
+
+static long asr_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	static const struct watchdog_info ident = {
+		.options =	WDIOF_KEEPALIVEPING |
+				WDIOF_MAGICCLOSE,
+		.identity =	"IBM ASR",
+	};
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int heartbeat;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+		if (get_user(new_options, p))
+			return -EFAULT;
+		if (new_options & WDIOS_DISABLECARD) {
+			asr_disable();
+			retval = 0;
+		}
+		if (new_options & WDIOS_ENABLECARD) {
+			asr_enable();
+			asr_toggle();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		asr_toggle();
+		return 0;
+	/*
+	 * The hardware has a fixed timeout value, so no WDIOC_SETTIMEOUT
+	 * and WDIOC_GETTIMEOUT always returns 256.
+	 */
+	case WDIOC_GETTIMEOUT:
+		heartbeat = 256;
+		return put_user(heartbeat, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int asr_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &asr_is_open))
+		return -EBUSY;
+
+	asr_toggle();
+	asr_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static int asr_release(struct inode *inode, struct file *file)
+{
+	if (asr_expect_close == 42)
+		asr_disable();
+	else {
+		printk(KERN_CRIT PFX
+				"unexpected close, not stopping watchdog!\n");
+		asr_toggle();
+	}
+	clear_bit(0, &asr_is_open);
+	asr_expect_close = 0;
+	return 0;
+}
+
+static const struct file_operations asr_fops = {
+	.owner =		THIS_MODULE,
+	.llseek =		no_llseek,
+	.write =		asr_write,
+	.unlocked_ioctl =	asr_ioctl,
+	.open =			asr_open,
+	.release =		asr_release,
+};
+
+static struct miscdevice asr_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&asr_fops,
+};
+
+
+struct ibmasr_id {
+	const char *desc;
+	int type;
+};
+
+static struct ibmasr_id __initdata ibmasr_id_table[] = {
+	{ "IBM Automatic Server Restart - eserver xSeries 220", ASMTYPE_TOPAZ },
+	{ "IBM Automatic Server Restart - Machine Type 8673", ASMTYPE_PEARL },
+	{ "IBM Automatic Server Restart - Machine Type 8480", ASMTYPE_JASPER },
+	{ "IBM Automatic Server Restart - Machine Type 8482", ASMTYPE_JUNIPER },
+	{ "IBM Automatic Server Restart - Machine Type 8648", ASMTYPE_SPRUCE },
+	{ NULL }
+};
+
+static int __init ibmasr_init(void)
+{
+	struct ibmasr_id *id;
+	int rc;
+
+	for (id = ibmasr_id_table; id->desc; id++) {
+		if (dmi_find_device(DMI_DEV_TYPE_OTHER, id->desc, NULL)) {
+			asr_type = id->type;
+			break;
+		}
+	}
+
+	if (!asr_type)
+		return -ENODEV;
+
+	spin_lock_init(&asr_lock);
+
+	rc = asr_get_base_address();
+	if (rc)
+		return rc;
+
+	rc = misc_register(&asr_miscdev);
+	if (rc < 0) {
+		release_region(asr_base, asr_length);
+		printk(KERN_ERR PFX "failed to register misc device\n");
+		return rc;
+	}
+
+	return 0;
+}
+
+static void __exit ibmasr_exit(void)
+{
+	if (!nowayout)
+		asr_disable();
+
+	misc_deregister(&asr_miscdev);
+
+	release_region(asr_base, asr_length);
+}
+
+module_init(ibmasr_init);
+module_exit(ibmasr_exit);
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+MODULE_DESCRIPTION("IBM Automatic Server Restart driver");
+MODULE_AUTHOR("Andrey Panin");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
new file mode 100644
index 0000000..0f761db
--- /dev/null
+++ b/drivers/watchdog/indydog.c
@@ -0,0 +1,225 @@
+/*
+ *	IndyDog	0.3	A Hardware Watchdog Device for SGI IP22
+ *
+ *	(c) Copyright 2002 Guido Guenther <agx@sigxcpu.org>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/uaccess.h>
+#include <asm/sgi/mc.h>
+
+#define PFX "indydog: "
+static unsigned long indydog_alive;
+static spinlock_t indydog_lock;
+
+#define WATCHDOG_TIMEOUT 30		/* 30 sec default timeout */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static void indydog_start(void)
+{
+	u32 mc_ctrl0;
+
+	spin_lock(&indydog_lock);
+	mc_ctrl0 = sgimc->cpuctrl0;
+	mc_ctrl0 = sgimc->cpuctrl0 | SGIMC_CCTRL0_WDOG;
+	sgimc->cpuctrl0 = mc_ctrl0;
+	spin_unlock(&indydog_lock);
+}
+
+static void indydog_stop(void)
+{
+	u32 mc_ctrl0;
+
+	spin_lock(&indydog_lock);
+
+	mc_ctrl0 = sgimc->cpuctrl0;
+	mc_ctrl0 &= ~SGIMC_CCTRL0_WDOG;
+	sgimc->cpuctrl0 = mc_ctrl0;
+	spin_unlock(&indydog_lock);
+
+	printk(KERN_INFO PFX "Stopped watchdog timer.\n");
+}
+
+static void indydog_ping(void)
+{
+	sgimc->watchdogt = 0;
+}
+
+/*
+ *	Allow only one person to hold it open
+ */
+static int indydog_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &indydog_alive))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Activate timer */
+	indydog_start();
+	indydog_ping();
+
+	indydog_alive = 1;
+	printk(KERN_INFO "Started watchdog timer.\n");
+
+	return nonseekable_open(inode, file);
+}
+
+static int indydog_release(struct inode *inode, struct file *file)
+{
+	/* Shut off the timer.
+	 * Lock it in if it's a module and we defined ...NOWAYOUT */
+	if (!nowayout)
+		indydog_stop();		/* Turn the WDT off */
+	clear_bit(0, &indydog_alive);
+	return 0;
+}
+
+static ssize_t indydog_write(struct file *file, const char *data,
+						size_t len, loff_t *ppos)
+{
+	/* Refresh the timer. */
+	if (len)
+		indydog_ping();
+	return len;
+}
+
+static long indydog_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int options, retval = -EINVAL;
+	static struct watchdog_info ident = {
+		.options		= WDIOF_KEEPALIVEPING |
+					  WDIOF_MAGICCLOSE,
+		.firmware_version	= 0,
+		.identity		= "Hardware Watchdog for SGI IP22",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user((struct watchdog_info *)arg,
+				 &ident, sizeof(ident)))
+			return -EFAULT;
+		return 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, (int *)arg);
+	case WDIOC_SETOPTIONS:
+	{
+		if (get_user(options, (int *)arg))
+			return -EFAULT;
+		if (options & WDIOS_DISABLECARD) {
+			indydog_stop();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			indydog_start();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		indydog_ping();
+		return 0;
+	case WDIOC_GETTIMEOUT:
+		return put_user(WATCHDOG_TIMEOUT, (int *)arg);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int indydog_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		indydog_stop();		/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations indydog_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= indydog_write,
+	.unlocked_ioctl	= indydog_ioctl,
+	.open		= indydog_open,
+	.release	= indydog_release,
+};
+
+static struct miscdevice indydog_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &indydog_fops,
+};
+
+static struct notifier_block indydog_notifier = {
+	.notifier_call = indydog_notify_sys,
+};
+
+static char banner[] __initdata =
+	KERN_INFO PFX "Hardware Watchdog Timer for SGI IP22: 0.3\n";
+
+static int __init watchdog_init(void)
+{
+	int ret;
+
+	spin_lock_init(&indydog_lock);
+
+	ret = register_reboot_notifier(&indydog_notifier);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		return ret;
+	}
+
+	ret = misc_register(&indydog_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		unregister_reboot_notifier(&indydog_notifier);
+		return ret;
+	}
+
+	printk(banner);
+
+	return 0;
+}
+
+static void __exit watchdog_exit(void)
+{
+	misc_deregister(&indydog_miscdev);
+	unregister_reboot_notifier(&indydog_notifier);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
+MODULE_DESCRIPTION("Hardware Watchdog Device for SGI IP22");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
new file mode 100644
index 0000000..96eb2cb
--- /dev/null
+++ b/drivers/watchdog/iop_wdt.c
@@ -0,0 +1,264 @@
+/*
+ * drivers/char/watchdog/iop_wdt.c
+ *
+ * WDT driver for Intel I/O Processors
+ * Copyright (C) 2005, Intel Corporation.
+ *
+ * Based on ixp4xx driver, Copyright 2004 (c) MontaVista, Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ *	Curt E Bruns <curt.e.bruns@intel.com>
+ *	Peter Milne <peter.milne@d-tacq.com>
+ *	Dan Williams <dan.j.williams@intel.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/uaccess.h>
+#include <mach/hardware.h>
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+static unsigned long wdt_status;
+static unsigned long boot_status;
+static spinlock_t wdt_lock;
+
+#define WDT_IN_USE		0
+#define WDT_OK_TO_CLOSE		1
+#define WDT_ENABLED		2
+
+static unsigned long iop_watchdog_timeout(void)
+{
+	return (0xffffffffUL / get_iop_tick_rate());
+}
+
+/**
+ * wdt_supports_disable - determine if we are accessing a iop13xx watchdog
+ * or iop3xx by whether it has a disable command
+ */
+static int wdt_supports_disable(void)
+{
+	int can_disable;
+
+	if (IOP_WDTCR_EN_ARM != IOP_WDTCR_DIS_ARM)
+		can_disable = 1;
+	else
+		can_disable = 0;
+
+	return can_disable;
+}
+
+static void wdt_enable(void)
+{
+	/* Arm and enable the Timer to starting counting down from 0xFFFF.FFFF
+	 * Takes approx. 10.7s to timeout
+	 */
+	spin_lock(&wdt_lock);
+	write_wdtcr(IOP_WDTCR_EN_ARM);
+	write_wdtcr(IOP_WDTCR_EN);
+	spin_unlock(&wdt_lock);
+}
+
+/* returns 0 if the timer was successfully disabled */
+static int wdt_disable(void)
+{
+	/* Stop Counting */
+	if (wdt_supports_disable()) {
+		spin_lock(&wdt_lock);
+		write_wdtcr(IOP_WDTCR_DIS_ARM);
+		write_wdtcr(IOP_WDTCR_DIS);
+		clear_bit(WDT_ENABLED, &wdt_status);
+		spin_unlock(&wdt_lock);
+		printk(KERN_INFO "WATCHDOG: Disabled\n");
+		return 0;
+	} else
+		return 1;
+}
+
+static int iop_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+	wdt_enable();
+	set_bit(WDT_ENABLED, &wdt_status);
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t iop_wdt_write(struct file *file, const char *data, size_t len,
+		  loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			}
+		}
+		wdt_enable();
+	}
+	return len;
+}
+
+static const struct watchdog_info ident = {
+	.options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
+	.identity = "iop watchdog",
+};
+
+static long iop_wdt_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	int options;
+	int ret = -ENOTTY;
+	int __user *argp = (int __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof ident))
+			ret = -EFAULT;
+		else
+			ret = 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, argp);
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(boot_status, argp);
+		break;
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(options, (int *)arg))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			if (!nowayout) {
+				if (wdt_disable() == 0) {
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+					ret = 0;
+				} else
+					ret = -ENXIO;
+			} else
+				ret = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			wdt_enable();
+			ret = 0;
+		}
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_enable();
+		ret = 0;
+		break;
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(iop_watchdog_timeout(), argp);
+		break;
+	}
+	return ret;
+}
+
+static int iop_wdt_release(struct inode *inode, struct file *file)
+{
+	int state = 1;
+	if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+		if (test_bit(WDT_ENABLED, &wdt_status))
+			state = wdt_disable();
+
+	/* if the timer is not disbaled reload and notify that we are still
+	 * going down
+	 */
+	if (state != 0) {
+		wdt_enable();
+		printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
+		       "reset in %lu seconds\n", iop_watchdog_timeout());
+	}
+
+	clear_bit(WDT_IN_USE, &wdt_status);
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	return 0;
+}
+
+static const struct file_operations iop_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = iop_wdt_write,
+	.unlocked_ioctl = iop_wdt_ioctl,
+	.open = iop_wdt_open,
+	.release = iop_wdt_release,
+};
+
+static struct miscdevice iop_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &iop_wdt_fops,
+};
+
+static int __init iop_wdt_init(void)
+{
+	int ret;
+
+	spin_lock_init(&wdt_lock);
+
+
+	/* check if the reset was caused by the watchdog timer */
+	boot_status = (read_rcsr() & IOP_RCSR_WDT) ? WDIOF_CARDRESET : 0;
+
+	/* Configure Watchdog Timeout to cause an Internal Bus (IB) Reset
+	 * NOTE: An IB Reset will Reset both cores in the IOP342
+	 */
+	write_wdtsr(IOP13XX_WDTCR_IB_RESET);
+
+	/* Register after we have the device set up so we cannot race
+	   with an open */
+	ret = misc_register(&iop_wdt_miscdev);
+	if (ret == 0)
+		printk(KERN_INFO "iop watchdog timer: timeout %lu sec\n",
+		       iop_watchdog_timeout());
+
+	return ret;
+}
+
+static void __exit iop_wdt_exit(void)
+{
+	misc_deregister(&iop_wdt_miscdev);
+}
+
+module_init(iop_wdt_init);
+module_exit(iop_wdt_exit);
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+MODULE_AUTHOR("Curt E Bruns <curt.e.bruns@intel.com>");
+MODULE_DESCRIPTION("iop watchdog timer driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
new file mode 100644
index 0000000..2270ee0
--- /dev/null
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -0,0 +1,419 @@
+/*
+ *	IT8712F "Smart Guardian" Watchdog support
+ *
+ *	Copyright (c) 2006-2007 Jorge Boncompte - DTI2 <jorge@dti2.net>
+ *
+ *	Based on info and code taken from:
+ *
+ *	drivers/char/watchdog/scx200_wdt.c
+ *	drivers/hwmon/it87.c
+ *	IT8712F EC-LPC I/O Preliminary Specification 0.8.2
+ *	IT8712F EC-LPC I/O Preliminary Specification 0.9.3
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation; either version 2 of the
+ *	License, or (at your option) any later version.
+ *
+ *	The author(s) of this software shall not be held liable for damages
+ *	of any nature resulting due to the use of this software. This
+ *	software is provided AS-IS with no warranties.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/fs.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#define NAME "it8712f_wdt"
+
+MODULE_AUTHOR("Jorge Boncompte - DTI2 <jorge@dti2.net>");
+MODULE_DESCRIPTION("IT8712F Watchdog Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+static int max_units = 255;
+static int margin = 60;		/* in seconds */
+module_param(margin, int, 0);
+MODULE_PARM_DESC(margin, "Watchdog margin in seconds");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
+
+static unsigned long wdt_open;
+static unsigned expect_close;
+static spinlock_t io_lock;
+static unsigned char revision;
+
+/* Dog Food address - We use the game port address */
+static unsigned short address;
+
+#define	REG		0x2e	/* The register to read/write */
+#define	VAL		0x2f	/* The value to read/write */
+
+#define	LDN		0x07	/* Register: Logical device select */
+#define	DEVID		0x20	/* Register: Device ID */
+#define	DEVREV		0x22	/* Register: Device Revision */
+#define ACT_REG		0x30	/* LDN Register: Activation */
+#define BASE_REG	0x60	/* LDN Register: Base address */
+
+#define IT8712F_DEVID	0x8712
+
+#define LDN_GPIO	0x07	/* GPIO and Watch Dog Timer */
+#define LDN_GAME 	0x09	/* Game Port */
+
+#define WDT_CONTROL	0x71	/* WDT Register: Control */
+#define WDT_CONFIG	0x72	/* WDT Register: Configuration */
+#define WDT_TIMEOUT	0x73	/* WDT Register: Timeout Value */
+
+#define WDT_RESET_GAME	0x10
+#define WDT_RESET_KBD	0x20
+#define WDT_RESET_MOUSE	0x40
+#define WDT_RESET_CIR	0x80
+
+#define WDT_UNIT_SEC	0x80	/* If 0 in MINUTES */
+
+#define WDT_OUT_PWROK	0x10
+#define WDT_OUT_KRST	0x40
+
+static int superio_inb(int reg)
+{
+	outb(reg, REG);
+	return inb(VAL);
+}
+
+static void superio_outb(int val, int reg)
+{
+	outb(reg, REG);
+	outb(val, VAL);
+}
+
+static int superio_inw(int reg)
+{
+	int val;
+	outb(reg++, REG);
+	val = inb(VAL) << 8;
+	outb(reg, REG);
+	val |= inb(VAL);
+	return val;
+}
+
+static inline void superio_select(int ldn)
+{
+	outb(LDN, REG);
+	outb(ldn, VAL);
+}
+
+static inline void superio_enter(void)
+{
+	spin_lock(&io_lock);
+	outb(0x87, REG);
+	outb(0x01, REG);
+	outb(0x55, REG);
+	outb(0x55, REG);
+}
+
+static inline void superio_exit(void)
+{
+	outb(0x02, REG);
+	outb(0x02, VAL);
+	spin_unlock(&io_lock);
+}
+
+static inline void it8712f_wdt_ping(void)
+{
+	inb(address);
+}
+
+static void it8712f_wdt_update_margin(void)
+{
+	int config = WDT_OUT_KRST | WDT_OUT_PWROK;
+	int units = margin;
+
+	/* Switch to minutes precision if the configured margin
+	 * value does not fit within the register width.
+	 */
+	if (units <= max_units) {
+		config |= WDT_UNIT_SEC; /* else UNIT is MINUTES */
+		printk(KERN_INFO NAME ": timer margin %d seconds\n", units);
+	} else {
+		units /= 60;
+		printk(KERN_INFO NAME ": timer margin %d minutes\n", units);
+	}
+	superio_outb(config, WDT_CONFIG);
+
+	if (revision >= 0x08)
+		superio_outb(units >> 8, WDT_TIMEOUT + 1);
+	superio_outb(units, WDT_TIMEOUT);
+}
+
+static int it8712f_wdt_get_status(void)
+{
+	if (superio_inb(WDT_CONTROL) & 0x01)
+		return WDIOF_CARDRESET;
+	else
+		return 0;
+}
+
+static void it8712f_wdt_enable(void)
+{
+	printk(KERN_DEBUG NAME ": enabling watchdog timer\n");
+	superio_enter();
+	superio_select(LDN_GPIO);
+
+	superio_outb(WDT_RESET_GAME, WDT_CONTROL);
+
+	it8712f_wdt_update_margin();
+
+	superio_exit();
+
+	it8712f_wdt_ping();
+}
+
+static void it8712f_wdt_disable(void)
+{
+	printk(KERN_DEBUG NAME ": disabling watchdog timer\n");
+
+	superio_enter();
+	superio_select(LDN_GPIO);
+
+	superio_outb(0, WDT_CONFIG);
+	superio_outb(0, WDT_CONTROL);
+	if (revision >= 0x08)
+		superio_outb(0, WDT_TIMEOUT + 1);
+	superio_outb(0, WDT_TIMEOUT);
+
+	superio_exit();
+}
+
+static int it8712f_wdt_notify(struct notifier_block *this,
+		    unsigned long code, void *unused)
+{
+	if (code == SYS_HALT || code == SYS_POWER_OFF)
+		if (!nowayout)
+			it8712f_wdt_disable();
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block it8712f_wdt_notifier = {
+	.notifier_call = it8712f_wdt_notify,
+};
+
+static ssize_t it8712f_wdt_write(struct file *file, const char __user *data,
+					size_t len, loff_t *ppos)
+{
+	/* check for a magic close character */
+	if (len) {
+		size_t i;
+
+		it8712f_wdt_ping();
+
+		expect_close = 0;
+		for (i = 0; i < len; ++i) {
+			char c;
+			if (get_user(c, data + i))
+				return -EFAULT;
+			if (c == 'V')
+				expect_close = 42;
+		}
+	}
+
+	return len;
+}
+
+static long it8712f_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.identity = "IT8712F Watchdog",
+		.firmware_version = 1,
+		.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	};
+	int value;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		return 0;
+	case WDIOC_GETSTATUS:
+		superio_enter();
+		superio_select(LDN_GPIO);
+
+		value = it8712f_wdt_get_status();
+
+		superio_exit();
+
+		return put_user(value, p);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		it8712f_wdt_ping();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(value, p))
+			return -EFAULT;
+		if (value < 1)
+			return -EINVAL;
+		if (value > (max_units * 60))
+			return -EINVAL;
+		margin = value;
+		superio_enter();
+		superio_select(LDN_GPIO);
+
+		it8712f_wdt_update_margin();
+
+		superio_exit();
+		it8712f_wdt_ping();
+		/* Fall through */
+	case WDIOC_GETTIMEOUT:
+		if (put_user(margin, p))
+			return -EFAULT;
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int it8712f_wdt_open(struct inode *inode, struct file *file)
+{
+	/* only allow one at a time */
+	if (test_and_set_bit(0, &wdt_open))
+		return -EBUSY;
+	it8712f_wdt_enable();
+	return nonseekable_open(inode, file);
+}
+
+static int it8712f_wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close != 42) {
+		printk(KERN_WARNING NAME
+			": watchdog device closed unexpectedly, will not"
+			" disable the watchdog timer\n");
+	} else if (!nowayout) {
+		it8712f_wdt_disable();
+	}
+	expect_close = 0;
+	clear_bit(0, &wdt_open);
+
+	return 0;
+}
+
+static const struct file_operations it8712f_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = it8712f_wdt_write,
+	.unlocked_ioctl = it8712f_wdt_ioctl,
+	.open = it8712f_wdt_open,
+	.release = it8712f_wdt_release,
+};
+
+static struct miscdevice it8712f_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &it8712f_wdt_fops,
+};
+
+static int __init it8712f_wdt_find(unsigned short *address)
+{
+	int err = -ENODEV;
+	int chip_type;
+
+	superio_enter();
+	chip_type = superio_inw(DEVID);
+	if (chip_type != IT8712F_DEVID)
+		goto exit;
+
+	superio_select(LDN_GAME);
+	superio_outb(1, ACT_REG);
+	if (!(superio_inb(ACT_REG) & 0x01)) {
+		printk(KERN_ERR NAME ": Device not activated, skipping\n");
+		goto exit;
+	}
+
+	*address = superio_inw(BASE_REG);
+	if (*address == 0) {
+		printk(KERN_ERR NAME ": Base address not set, skipping\n");
+		goto exit;
+	}
+
+	err = 0;
+	revision = superio_inb(DEVREV) & 0x0f;
+
+	/* Later revisions have 16-bit values per datasheet 0.9.1 */
+	if (revision >= 0x08)
+		max_units = 65535;
+
+	if (margin > (max_units * 60))
+		margin = (max_units * 60);
+
+	printk(KERN_INFO NAME ": Found IT%04xF chip revision %d - "
+		"using DogFood address 0x%x\n",
+		chip_type, revision, *address);
+
+exit:
+	superio_exit();
+	return err;
+}
+
+static int __init it8712f_wdt_init(void)
+{
+	int err = 0;
+
+	spin_lock_init(&io_lock);
+
+	if (it8712f_wdt_find(&address))
+		return -ENODEV;
+
+	if (!request_region(address, 1, "IT8712F Watchdog")) {
+		printk(KERN_WARNING NAME ": watchdog I/O region busy\n");
+		return -EBUSY;
+	}
+
+	it8712f_wdt_disable();
+
+	err = register_reboot_notifier(&it8712f_wdt_notifier);
+	if (err) {
+		printk(KERN_ERR NAME ": unable to register reboot notifier\n");
+		goto out;
+	}
+
+	err = misc_register(&it8712f_wdt_miscdev);
+	if (err) {
+		printk(KERN_ERR NAME
+			": cannot register miscdev on minor=%d (err=%d)\n",
+			WATCHDOG_MINOR, err);
+		goto reboot_out;
+	}
+
+	return 0;
+
+
+reboot_out:
+	unregister_reboot_notifier(&it8712f_wdt_notifier);
+out:
+	release_region(address, 1);
+	return err;
+}
+
+static void __exit it8712f_wdt_exit(void)
+{
+	misc_deregister(&it8712f_wdt_miscdev);
+	unregister_reboot_notifier(&it8712f_wdt_notifier);
+	release_region(address, 1);
+}
+
+module_init(it8712f_wdt_init);
+module_exit(it8712f_wdt_exit);
diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
new file mode 100644
index 0000000..afb8af3
--- /dev/null
+++ b/drivers/watchdog/it87_wdt.c
@@ -0,0 +1,725 @@
+/*
+ *	Watchdog Timer Driver
+ *	   for ITE IT87xx Environment Control - Low Pin Count Input / Output
+ *
+ *	(c) Copyright 2007  Oliver Schuster <olivers137@aol.com>
+ *
+ *	Based on softdog.c	by Alan Cox,
+ *		 83977f_wdt.c	by Jose Goncalves,
+ *		 it87.c		by Chris Gauthron, Jean Delvare
+ *
+ *	Data-sheets: Publicly available at the ITE website
+ *		    http://www.ite.com.tw/
+ *
+ *	Support of the watchdog timers, which are available on
+ *	IT8716, IT8718, IT8726 and IT8712 (J,K version).
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the Free Software
+ *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#include <asm/system.h>
+
+#define WATCHDOG_VERSION	"1.12"
+#define WATCHDOG_NAME		"IT87 WDT"
+#define PFX			WATCHDOG_NAME ": "
+#define DRIVER_VERSION		WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n"
+#define WD_MAGIC		'V'
+
+/* Defaults for Module Parameter */
+#define DEFAULT_NOGAMEPORT	0
+#define DEFAULT_EXCLUSIVE	1
+#define DEFAULT_TIMEOUT 	60
+#define DEFAULT_TESTMODE	0
+#define DEFAULT_NOWAYOUT	WATCHDOG_NOWAYOUT
+
+/* IO Ports */
+#define REG		0x2e
+#define VAL		0x2f
+
+/* Logical device Numbers LDN */
+#define GPIO		0x07
+#define GAMEPORT	0x09
+#define CIR		0x0a
+
+/* Configuration Registers and Functions */
+#define LDNREG		0x07
+#define CHIPID		0x20
+#define CHIPREV 	0x22
+#define ACTREG		0x30
+#define BASEREG 	0x60
+
+/* Chip Id numbers */
+#define NO_DEV_ID	0xffff
+#define IT8705_ID	0x8705
+#define IT8712_ID	0x8712
+#define IT8716_ID	0x8716
+#define IT8718_ID	0x8718
+#define IT8726_ID	0x8726	/* the data sheet suggest wrongly 0x8716 */
+
+/* GPIO Configuration Registers LDN=0x07 */
+#define WDTCTRL 	0x71
+#define WDTCFG		0x72
+#define WDTVALLSB	0x73
+#define WDTVALMSB	0x74
+
+/* GPIO Bits WDTCTRL */
+#define WDT_CIRINT	0x80
+#define WDT_MOUSEINT	0x40
+#define WDT_KYBINT	0x20
+#define WDT_GAMEPORT	0x10 /* not it8718 */
+#define WDT_FORCE	0x02
+#define WDT_ZERO	0x01
+
+/* GPIO Bits WDTCFG */
+#define WDT_TOV1	0x80
+#define WDT_KRST	0x40
+#define WDT_TOVE	0x20
+#define WDT_PWROK	0x10
+#define WDT_INT_MASK	0x0f
+
+/* CIR Configuration Register LDN=0x0a */
+#define CIR_ILS 	0x70
+
+/* The default Base address is not always available, we use this */
+#define CIR_BASE	0x0208
+
+/* CIR Controller */
+#define CIR_DR(b)	(b)
+#define CIR_IER(b)	(b + 1)
+#define CIR_RCR(b)	(b + 2)
+#define CIR_TCR1(b)	(b + 3)
+#define CIR_TCR2(b)	(b + 4)
+#define CIR_TSR(b)	(b + 5)
+#define CIR_RSR(b)	(b + 6)
+#define CIR_BDLR(b)	(b + 5)
+#define CIR_BDHR(b)	(b + 6)
+#define CIR_IIR(b)	(b + 7)
+
+/* Default Base address of Game port */
+#define GP_BASE_DEFAULT	0x0201
+
+/* wdt_status */
+#define WDTS_TIMER_RUN	0
+#define WDTS_DEV_OPEN	1
+#define WDTS_KEEPALIVE	2
+#define WDTS_LOCKED	3
+#define WDTS_USE_GP	4
+#define WDTS_EXPECTED	5
+
+static	unsigned int base, gpact, ciract;
+static	unsigned long wdt_status;
+static	DEFINE_SPINLOCK(spinlock);
+
+static	int nogameport = DEFAULT_NOGAMEPORT;
+static	int exclusive  = DEFAULT_EXCLUSIVE;
+static	int timeout    = DEFAULT_TIMEOUT;
+static	int testmode   = DEFAULT_TESTMODE;
+static	int nowayout   = DEFAULT_NOWAYOUT;
+
+module_param(nogameport, int, 0);
+MODULE_PARM_DESC(nogameport, "Forbid the activation of game port, default="
+		__MODULE_STRING(DEFAULT_NOGAMEPORT));
+module_param(exclusive, int, 0);
+MODULE_PARM_DESC(exclusive, "Watchdog exclusive device open, default="
+		__MODULE_STRING(DEFAULT_EXCLUSIVE));
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, default="
+		__MODULE_STRING(DEFAULT_TIMEOUT));
+module_param(testmode, int, 0);
+MODULE_PARM_DESC(testmode, "Watchdog test mode (1 = no reboot), default="
+		__MODULE_STRING(DEFAULT_TESTMODE));
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started, default="
+		__MODULE_STRING(WATCHDOG_NOWAYOUT));
+
+/* Superio Chip */
+
+static inline void superio_enter(void)
+{
+	outb(0x87, REG);
+	outb(0x01, REG);
+	outb(0x55, REG);
+	outb(0x55, REG);
+}
+
+static inline void superio_exit(void)
+{
+	outb(0x02, REG);
+	outb(0x02, VAL);
+}
+
+static inline void superio_select(int ldn)
+{
+	outb(LDNREG, REG);
+	outb(ldn, VAL);
+}
+
+static inline int superio_inb(int reg)
+{
+	outb(reg, REG);
+	return inb(VAL);
+}
+
+static inline void superio_outb(int val, int reg)
+{
+       outb(reg, REG);
+       outb(val, VAL);
+}
+
+static inline int superio_inw(int reg)
+{
+	int val;
+	outb(reg++, REG);
+	val = inb(VAL) << 8;
+	outb(reg, REG);
+	val |= inb(VAL);
+	return val;
+}
+
+static inline void superio_outw(int val, int reg)
+{
+       outb(reg++, REG);
+       outb(val >> 8, VAL);
+       outb(reg, REG);
+       outb(val, VAL);
+}
+
+/* watchdog timer handling */
+
+static void wdt_keepalive(void)
+{
+	if (test_bit(WDTS_USE_GP, &wdt_status))
+		inb(base);
+	else
+		/* The timer reloads with around 5 msec delay */
+		outb(0x55, CIR_DR(base));
+	set_bit(WDTS_KEEPALIVE, &wdt_status);
+}
+
+static void wdt_start(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+	superio_enter();
+
+	superio_select(GPIO);
+	if (test_bit(WDTS_USE_GP, &wdt_status))
+		superio_outb(WDT_GAMEPORT, WDTCTRL);
+	else
+		superio_outb(WDT_CIRINT, WDTCTRL);
+	if (!testmode)
+		superio_outb(WDT_TOV1 | WDT_KRST | WDT_PWROK, WDTCFG);
+	else
+		superio_outb(WDT_TOV1, WDTCFG);
+	superio_outb(timeout>>8, WDTVALMSB);
+	superio_outb(timeout, WDTVALLSB);
+
+	superio_exit();
+	spin_unlock_irqrestore(&spinlock, flags);
+}
+
+static void wdt_stop(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+	superio_enter();
+
+	superio_select(GPIO);
+	superio_outb(0x00, WDTCTRL);
+	superio_outb(WDT_TOV1, WDTCFG);
+	superio_outb(0x00, WDTVALMSB);
+	superio_outb(0x00, WDTVALLSB);
+
+	superio_exit();
+	spin_unlock_irqrestore(&spinlock, flags);
+}
+
+/**
+ *	wdt_set_timeout - set a new timeout value with watchdog ioctl
+ *	@t: timeout value in seconds
+ *
+ *	The hardware device has a 16 bit watchdog timer, thus the
+ *	timeout time ranges between 1 and 65535 seconds.
+ *
+ *	Used within WDIOC_SETTIMEOUT watchdog device ioctl.
+ */
+
+static int wdt_set_timeout(int t)
+{
+	unsigned long flags;
+
+	if (t < 1 || t > 65535)
+		return -EINVAL;
+
+	timeout = t;
+
+	spin_lock_irqsave(&spinlock, flags);
+	if (test_bit(WDTS_TIMER_RUN, &wdt_status)) {
+		superio_enter();
+
+		superio_select(GPIO);
+		superio_outb(t>>8, WDTVALMSB);
+		superio_outb(t, WDTVALLSB);
+
+		superio_exit();
+	}
+	spin_unlock_irqrestore(&spinlock, flags);
+	return 0;
+}
+
+/**
+ *	wdt_get_status - determines the status supported by watchdog ioctl
+ *	@status: status returned to user space
+ *
+ *	The status bit of the device does not allow to distinguish
+ *	between a regular system reset and a watchdog forced reset.
+ *	But, in test mode it is useful, so it is supported through
+ *	WDIOC_GETSTATUS watchdog ioctl. Additionally the driver
+ *	reports the keepalive signal and the acception of the magic.
+ *
+ *	Used within WDIOC_GETSTATUS watchdog device ioctl.
+ */
+
+static int wdt_get_status(int *status)
+{
+	unsigned long flags;
+
+	*status = 0;
+	if (testmode) {
+		spin_lock_irqsave(&spinlock, flags);
+		superio_enter();
+		superio_select(GPIO);
+		if (superio_inb(WDTCTRL) & WDT_ZERO) {
+			superio_outb(0x00, WDTCTRL);
+			clear_bit(WDTS_TIMER_RUN, &wdt_status);
+			*status |= WDIOF_CARDRESET;
+		}
+
+		superio_exit();
+		spin_unlock_irqrestore(&spinlock, flags);
+	}
+	if (test_and_clear_bit(WDTS_KEEPALIVE, &wdt_status))
+		*status |= WDIOF_KEEPALIVEPING;
+	if (test_bit(WDTS_EXPECTED, &wdt_status))
+		*status |= WDIOF_MAGICCLOSE;
+	return 0;
+}
+
+/* /dev/watchdog handling */
+
+/**
+ *	wdt_open - watchdog file_operations .open
+ *	@inode: inode of the device
+ *	@file: file handle to the device
+ *
+ *	The watchdog timer starts by opening the device.
+ *
+ *	Used within the file operation of the watchdog device.
+ */
+
+static int wdt_open(struct inode *inode, struct file *file)
+{
+	if (exclusive && test_and_set_bit(WDTS_DEV_OPEN, &wdt_status))
+		return -EBUSY;
+	if (!test_and_set_bit(WDTS_TIMER_RUN, &wdt_status)) {
+		if (nowayout && !test_and_set_bit(WDTS_LOCKED, &wdt_status))
+			__module_get(THIS_MODULE);
+		wdt_start();
+	}
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	wdt_release - watchdog file_operations .release
+ *	@inode: inode of the device
+ *	@file: file handle to the device
+ *
+ *	Closing the watchdog device either stops the watchdog timer
+ *	or in the case, that nowayout is set or the magic character
+ *	wasn't written, a critical warning about an running watchdog
+ *	timer is given.
+ *
+ *	Used within the file operation of the watchdog device.
+ */
+
+static int wdt_release(struct inode *inode, struct file *file)
+{
+	if (test_bit(WDTS_TIMER_RUN, &wdt_status)) {
+		if (test_and_clear_bit(WDTS_EXPECTED, &wdt_status)) {
+			wdt_stop();
+			clear_bit(WDTS_TIMER_RUN, &wdt_status);
+		} else {
+			wdt_keepalive();
+			printk(KERN_CRIT PFX
+			       "unexpected close, not stopping watchdog!\n");
+		}
+	}
+	clear_bit(WDTS_DEV_OPEN, &wdt_status);
+	return 0;
+}
+
+/**
+ *	wdt_write - watchdog file_operations .write
+ *	@file: file handle to the watchdog
+ *	@buf: buffer to write
+ *	@count: count of bytes
+ *	@ppos: pointer to the position to write. No seeks allowed
+ *
+ *	A write to a watchdog device is defined as a keepalive signal. Any
+ *	write of data will do, as we don't define content meaning.
+ *
+ *	Used within the file operation of the watchdog device.
+ */
+
+static ssize_t wdt_write(struct file *file, const char __user *buf,
+			    size_t count, loff_t *ppos)
+{
+	if (count) {
+		clear_bit(WDTS_EXPECTED, &wdt_status);
+		wdt_keepalive();
+	}
+	if (!nowayout) {
+		size_t ofs;
+
+	/* note: just in case someone wrote the magic character long ago */
+		for (ofs = 0; ofs != count; ofs++) {
+			char c;
+			if (get_user(c, buf + ofs))
+				return -EFAULT;
+			if (c == WD_MAGIC)
+				set_bit(WDTS_EXPECTED, &wdt_status);
+		}
+	}
+	return count;
+}
+
+static struct watchdog_info ident = {
+	.options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
+	.firmware_version =	1,
+	.identity = WATCHDOG_NAME,
+};
+
+/**
+ *	wdt_ioctl - watchdog file_operations .unlocked_ioctl
+ *	@file: file handle to the device
+ *	@cmd: watchdog command
+ *	@arg: argument pointer
+ *
+ *	The watchdog API defines a common set of functions for all watchdogs
+ *	according to their available features.
+ *
+ *	Used within the file operation of the watchdog device.
+ */
+
+static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int rc = 0, status, new_options, new_timeout;
+	union {
+		struct watchdog_info __user *ident;
+		int __user *i;
+	} uarg;
+
+	uarg.i = (int __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(uarg.ident,
+				    &ident, sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+		wdt_get_status(&status);
+		return put_user(status, uarg.i);
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, uarg.i);
+
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(new_options, uarg.i))
+			return -EFAULT;
+
+		switch (new_options) {
+		case WDIOS_DISABLECARD:
+			if (test_bit(WDTS_TIMER_RUN, &wdt_status))
+				wdt_stop();
+			clear_bit(WDTS_TIMER_RUN, &wdt_status);
+			return 0;
+
+		case WDIOS_ENABLECARD:
+			if (!test_and_set_bit(WDTS_TIMER_RUN, &wdt_status))
+				wdt_start();
+			return 0;
+
+		default:
+			return -EFAULT;
+		}
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, uarg.i))
+			return -EFAULT;
+		rc = wdt_set_timeout(new_timeout);
+	case WDIOC_GETTIMEOUT:
+		if (put_user(timeout, uarg.i))
+			return -EFAULT;
+		return rc;
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_stop();
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt_write,
+	.unlocked_ioctl	= wdt_ioctl,
+	.open		= wdt_open,
+	.release	= wdt_release,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &wdt_fops,
+};
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static int __init it87_wdt_init(void)
+{
+	int rc = 0;
+	u16 chip_type;
+	u8  chip_rev;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+	superio_enter();
+	chip_type = superio_inw(CHIPID);
+	chip_rev  = superio_inb(CHIPREV) & 0x0f;
+	superio_exit();
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	switch (chip_type) {
+	case IT8716_ID:
+	case IT8718_ID:
+	case IT8726_ID:
+		break;
+	case IT8712_ID:
+		if (chip_rev > 7)
+			break;
+	case IT8705_ID:
+		printk(KERN_ERR PFX
+		       "Unsupported Chip found, Chip %04x Revision %02x\n",
+		       chip_type, chip_rev);
+		return -ENODEV;
+	case NO_DEV_ID:
+		printk(KERN_ERR PFX "no device\n");
+		return -ENODEV;
+	default:
+		printk(KERN_ERR PFX
+		       "Unknown Chip found, Chip %04x Revision %04x\n",
+		       chip_type, chip_rev);
+		return -ENODEV;
+	}
+
+	spin_lock_irqsave(&spinlock, flags);
+	superio_enter();
+
+	superio_select(GPIO);
+	superio_outb(WDT_TOV1, WDTCFG);
+	superio_outb(0x00, WDTCTRL);
+
+	/* First try to get Gameport support */
+	if (chip_type != IT8718_ID && !nogameport) {
+		superio_select(GAMEPORT);
+		base = superio_inw(BASEREG);
+		if (!base) {
+			base = GP_BASE_DEFAULT;
+			superio_outw(base, BASEREG);
+		}
+		gpact = superio_inb(ACTREG);
+		superio_outb(0x01, ACTREG);
+		superio_exit();
+		spin_unlock_irqrestore(&spinlock, flags);
+		if (request_region(base, 1, WATCHDOG_NAME))
+			set_bit(WDTS_USE_GP, &wdt_status);
+		else
+			rc = -EIO;
+	} else {
+		superio_exit();
+		spin_unlock_irqrestore(&spinlock, flags);
+	}
+
+	/* If we haven't Gameport support, try to get CIR support */
+	if (!test_bit(WDTS_USE_GP, &wdt_status)) {
+		if (!request_region(CIR_BASE, 8, WATCHDOG_NAME)) {
+			if (rc == -EIO)
+				printk(KERN_ERR PFX
+					"I/O Address 0x%04x and 0x%04x"
+					" already in use\n", base, CIR_BASE);
+			else
+				printk(KERN_ERR PFX
+					"I/O Address 0x%04x already in use\n",
+					CIR_BASE);
+			rc = -EIO;
+			goto err_out;
+		}
+		base = CIR_BASE;
+		spin_lock_irqsave(&spinlock, flags);
+		superio_enter();
+
+		superio_select(CIR);
+		superio_outw(base, BASEREG);
+		superio_outb(0x00, CIR_ILS);
+		ciract = superio_inb(ACTREG);
+		superio_outb(0x01, ACTREG);
+		if (rc == -EIO) {
+			superio_select(GAMEPORT);
+			superio_outb(gpact, ACTREG);
+		}
+
+		superio_exit();
+		spin_unlock_irqrestore(&spinlock, flags);
+	}
+
+	if (timeout < 1 || timeout > 65535) {
+		timeout = DEFAULT_TIMEOUT;
+		printk(KERN_WARNING PFX
+		       "Timeout value out of range, use default %d sec\n",
+		       DEFAULT_TIMEOUT);
+	}
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+		       "Cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_region;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX
+		       "Cannot register miscdev on minor=%d (err=%d)\n",
+			wdt_miscdev.minor, rc);
+		goto err_out_reboot;
+	}
+
+	/* Initialize CIR to use it as keepalive source */
+	if (!test_bit(WDTS_USE_GP, &wdt_status)) {
+		outb(0x00, CIR_RCR(base));
+		outb(0xc0, CIR_TCR1(base));
+		outb(0x5c, CIR_TCR2(base));
+		outb(0x10, CIR_IER(base));
+		outb(0x00, CIR_BDHR(base));
+		outb(0x01, CIR_BDLR(base));
+		outb(0x09, CIR_IER(base));
+	}
+
+	printk(KERN_INFO PFX "Chip it%04x revision %d initialized. "
+		"timeout=%d sec (nowayout=%d testmode=%d exclusive=%d "
+		"nogameport=%d)\n", chip_type, chip_rev, timeout,
+		nowayout, testmode, exclusive, nogameport);
+
+	return 0;
+
+err_out_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out_region:
+	release_region(base, test_bit(WDTS_USE_GP, &wdt_status) ? 1 : 8);
+	if (!test_bit(WDTS_USE_GP, &wdt_status)) {
+		spin_lock_irqsave(&spinlock, flags);
+		superio_enter();
+		superio_select(CIR);
+		superio_outb(ciract, ACTREG);
+		superio_exit();
+		spin_unlock_irqrestore(&spinlock, flags);
+	}
+err_out:
+	if (chip_type != IT8718_ID && !nogameport) {
+		spin_lock_irqsave(&spinlock, flags);
+		superio_enter();
+		superio_select(GAMEPORT);
+		superio_outb(gpact, ACTREG);
+		superio_exit();
+		spin_unlock_irqrestore(&spinlock, flags);
+	}
+
+	return rc;
+}
+
+static void __exit it87_wdt_exit(void)
+{
+	unsigned long flags;
+	int nolock;
+
+	nolock = !spin_trylock_irqsave(&spinlock, flags);
+	superio_enter();
+	superio_select(GPIO);
+	superio_outb(0x00, WDTCTRL);
+	superio_outb(0x00, WDTCFG);
+	superio_outb(0x00, WDTVALMSB);
+	superio_outb(0x00, WDTVALLSB);
+	if (test_bit(WDTS_USE_GP, &wdt_status)) {
+		superio_select(GAMEPORT);
+		superio_outb(gpact, ACTREG);
+	} else {
+		superio_select(CIR);
+		superio_outb(ciract, ACTREG);
+	}
+	superio_exit();
+	if (!nolock)
+		spin_unlock_irqrestore(&spinlock, flags);
+
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(base, test_bit(WDTS_USE_GP, &wdt_status) ? 1 : 8);
+}
+
+module_init(it87_wdt_init);
+module_exit(it87_wdt_exit);
+
+MODULE_AUTHOR("Oliver Schuster");
+MODULE_DESCRIPTION("Hardware Watchdog Device Driver for IT87xx EC-LPC I/O");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ixp2000_wdt.c b/drivers/watchdog/ixp2000_wdt.c
new file mode 100644
index 0000000..4f4b35a
--- /dev/null
+++ b/drivers/watchdog/ixp2000_wdt.c
@@ -0,0 +1,214 @@
+/*
+ * drivers/char/watchdog/ixp2000_wdt.c
+ *
+ * Watchdog driver for Intel IXP2000 network processors
+ *
+ * Adapted from the IXP4xx watchdog driver by Lennert Buytenhek.
+ * The original version carries these notices:
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2004 (c) MontaVista, Software, Inc.
+ * Based on sa1100 driver, Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
+#include <mach/hardware.h>
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+static unsigned int heartbeat = 60;	/* (secs) Default is 1 minute */
+static unsigned long wdt_status;
+static spinlock_t wdt_lock;
+
+#define	WDT_IN_USE		0
+#define	WDT_OK_TO_CLOSE		1
+
+static unsigned long wdt_tick_rate;
+
+static void wdt_enable(void)
+{
+	spin_lock(&wdt_lock);
+	ixp2000_reg_write(IXP2000_RESET0, *(IXP2000_RESET0) | WDT_RESET_ENABLE);
+	ixp2000_reg_write(IXP2000_TWDE, WDT_ENABLE);
+	ixp2000_reg_write(IXP2000_T4_CLD, heartbeat * wdt_tick_rate);
+	ixp2000_reg_write(IXP2000_T4_CTL, TIMER_DIVIDER_256 | TIMER_ENABLE);
+	spin_unlock(&wdt_lock);
+}
+
+static void wdt_disable(void)
+{
+	spin_lock(&wdt_lock);
+	ixp2000_reg_write(IXP2000_T4_CTL, 0);
+	spin_unlock(&wdt_lock);
+}
+
+static void wdt_keepalive(void)
+{
+	spin_lock(&wdt_lock);
+	ixp2000_reg_write(IXP2000_T4_CLD, heartbeat * wdt_tick_rate);
+	spin_unlock(&wdt_lock);
+}
+
+static int ixp2000_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	wdt_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t ixp2000_wdt_write(struct file *file, const char *data,
+						size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			}
+		}
+		wdt_keepalive();
+	}
+
+	return len;
+}
+
+
+static struct watchdog_info ident = {
+	.options	= WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
+				WDIOF_KEEPALIVEPING,
+	.identity	= "IXP2000 Watchdog",
+};
+
+static long ixp2000_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int ret = -ENOTTY;
+	int time;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user((struct watchdog_info *)arg, &ident,
+				   sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, (int *)arg);
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, (int *)arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_enable();
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, (int *)arg);
+		if (ret)
+			break;
+
+		if (time <= 0 || time > 60) {
+			ret = -EINVAL;
+			break;
+		}
+
+		heartbeat = time;
+		wdt_keepalive();
+		/* Fall through */
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(heartbeat, (int *)arg);
+		break;
+	}
+
+	return ret;
+}
+
+static int ixp2000_wdt_release(struct inode *inode, struct file *file)
+{
+	if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+		wdt_disable();
+	else
+		printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
+					"timer will not stop\n");
+	clear_bit(WDT_IN_USE, &wdt_status);
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	return 0;
+}
+
+
+static const struct file_operations ixp2000_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= ixp2000_wdt_write,
+	.unlocked_ioctl	= ixp2000_wdt_ioctl,
+	.open		= ixp2000_wdt_open,
+	.release	= ixp2000_wdt_release,
+};
+
+static struct miscdevice ixp2000_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &ixp2000_wdt_fops,
+};
+
+static int __init ixp2000_wdt_init(void)
+{
+	if ((*IXP2000_PRODUCT_ID & 0x001ffef0) == 0x00000000) {
+		printk(KERN_INFO "Unable to use IXP2000 watchdog due to IXP2800 erratum #25.\n");
+		return -EIO;
+	}
+	wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256;
+	spin_lock_init(&wdt_lock);
+	return misc_register(&ixp2000_wdt_miscdev);
+}
+
+static void __exit ixp2000_wdt_exit(void)
+{
+	misc_deregister(&ixp2000_wdt_miscdev);
+}
+
+module_init(ixp2000_wdt_init);
+module_exit(ixp2000_wdt_exit);
+
+MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
+MODULE_DESCRIPTION("IXP2000 Network Processor Watchdog");
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
new file mode 100644
index 0000000..147b4d5
--- /dev/null
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -0,0 +1,214 @@
+/*
+ * drivers/char/watchdog/ixp4xx_wdt.c
+ *
+ * Watchdog driver for Intel IXP4xx network processors
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2004 (c) MontaVista, Software, Inc.
+ * Based on sa1100 driver, Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
+#include <mach/hardware.h>
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+static int heartbeat = 60;	/* (secs) Default is 1 minute */
+static unsigned long wdt_status;
+static unsigned long boot_status;
+static DEFINE_SPINLOCK(wdt_lock);
+
+#define WDT_TICK_RATE (IXP4XX_PERIPHERAL_BUS_CLOCK * 1000000UL)
+
+#define	WDT_IN_USE		0
+#define	WDT_OK_TO_CLOSE		1
+
+static void wdt_enable(void)
+{
+	spin_lock(&wdt_lock);
+	*IXP4XX_OSWK = IXP4XX_WDT_KEY;
+	*IXP4XX_OSWE = 0;
+	*IXP4XX_OSWT = WDT_TICK_RATE * heartbeat;
+	*IXP4XX_OSWE = IXP4XX_WDT_COUNT_ENABLE | IXP4XX_WDT_RESET_ENABLE;
+	*IXP4XX_OSWK = 0;
+	spin_unlock(&wdt_lock);
+}
+
+static void wdt_disable(void)
+{
+	spin_lock(&wdt_lock);
+	*IXP4XX_OSWK = IXP4XX_WDT_KEY;
+	*IXP4XX_OSWE = 0;
+	*IXP4XX_OSWK = 0;
+	spin_unlock(&wdt_lock);
+}
+
+static int ixp4xx_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+	wdt_enable();
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t
+ixp4xx_wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			}
+		}
+		wdt_enable();
+	}
+	return len;
+}
+
+static struct watchdog_info ident = {
+	.options	= WDIOF_CARDRESET | WDIOF_MAGICCLOSE |
+			  WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	.identity	= "IXP4xx Watchdog",
+};
+
+
+static long ixp4xx_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int ret = -ENOTTY;
+	int time;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user((struct watchdog_info *)arg, &ident,
+				   sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, (int *)arg);
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(boot_status, (int *)arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_enable();
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, (int *)arg);
+		if (ret)
+			break;
+
+		if (time <= 0 || time > 60) {
+			ret = -EINVAL;
+			break;
+		}
+
+		heartbeat = time;
+		wdt_enable();
+		/* Fall through */
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(heartbeat, (int *)arg);
+		break;
+	}
+	return ret;
+}
+
+static int ixp4xx_wdt_release(struct inode *inode, struct file *file)
+{
+	if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+		wdt_disable();
+	else
+		printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
+					"timer will not stop\n");
+	clear_bit(WDT_IN_USE, &wdt_status);
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	return 0;
+}
+
+
+static const struct file_operations ixp4xx_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= ixp4xx_wdt_write,
+	.unlocked_ioctl	= ixp4xx_wdt_ioctl,
+	.open		= ixp4xx_wdt_open,
+	.release	= ixp4xx_wdt_release,
+};
+
+static struct miscdevice ixp4xx_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &ixp4xx_wdt_fops,
+};
+
+static int __init ixp4xx_wdt_init(void)
+{
+	int ret;
+
+	if (!(read_cpuid_id() & 0xf) && !cpu_is_ixp46x()) {
+		printk(KERN_ERR "IXP4XXX Watchdog: Rev. A0 IXP42x CPU detected"
+			" - watchdog disabled\n");
+
+		return -ENODEV;
+	}
+	spin_lock_init(&wdt_lock);
+	boot_status = (*IXP4XX_OSST & IXP4XX_OSST_TIMER_WARM_RESET) ?
+			WDIOF_CARDRESET : 0;
+	ret = misc_register(&ixp4xx_wdt_miscdev);
+	if (ret == 0)
+		printk(KERN_INFO "IXP4xx Watchdog Timer: heartbeat %d sec\n",
+			heartbeat);
+	return ret;
+}
+
+static void __exit ixp4xx_wdt_exit(void)
+{
+	misc_deregister(&ixp4xx_wdt_miscdev);
+}
+
+
+module_init(ixp4xx_wdt_init);
+module_exit(ixp4xx_wdt_exit);
+
+MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
+MODULE_DESCRIPTION("IXP4xx Network Processor Watchdog");
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
new file mode 100644
index 0000000..74c92d3
--- /dev/null
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -0,0 +1,314 @@
+/*
+ * Watchdog driver for Kendin/Micrel KS8695.
+ *
+ * (C) 2007 Andrew Victor
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <mach/timex.h>
+#include <mach/regs-timer.h>
+
+#define WDT_DEFAULT_TIME	5	/* seconds */
+#define WDT_MAX_TIME		171	/* seconds */
+
+static int wdt_time = WDT_DEFAULT_TIME;
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+module_param(wdt_time, int, 0);
+MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="
+					__MODULE_STRING(WDT_DEFAULT_TIME) ")");
+
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+#endif
+
+
+static unsigned long ks8695wdt_busy;
+static spinlock_t ks8695_lock;
+
+/* ......................................................................... */
+
+/*
+ * Disable the watchdog.
+ */
+static inline void ks8695_wdt_stop(void)
+{
+	unsigned long tmcon;
+
+	spin_lock(&ks8695_lock);
+	/* disable timer0 */
+	tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+	__raw_writel(tmcon & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+	spin_unlock(&ks8695_lock);
+}
+
+/*
+ * Enable and reset the watchdog.
+ */
+static inline void ks8695_wdt_start(void)
+{
+	unsigned long tmcon;
+	unsigned long tval = wdt_time * CLOCK_TICK_RATE;
+
+	spin_lock(&ks8695_lock);
+	/* disable timer0 */
+	tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+	__raw_writel(tmcon & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+
+	/* program timer0 */
+	__raw_writel(tval | T0TC_WATCHDOG, KS8695_TMR_VA + KS8695_T0TC);
+
+	/* re-enable timer0 */
+	tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+	__raw_writel(tmcon | TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+	spin_unlock(&ks8695_lock);
+}
+
+/*
+ * Reload the watchdog timer.  (ie, pat the watchdog)
+ */
+static inline void ks8695_wdt_reload(void)
+{
+	unsigned long tmcon;
+
+	spin_lock(&ks8695_lock);
+	/* disable, then re-enable timer0 */
+	tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+	__raw_writel(tmcon & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+	__raw_writel(tmcon | TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+	spin_unlock(&ks8695_lock);
+}
+
+/*
+ * Change the watchdog time interval.
+ */
+static int ks8695_wdt_settimeout(int new_time)
+{
+	/*
+	 * All counting occurs at SLOW_CLOCK / 128 = 0.256 Hz
+	 *
+	 * Since WDV is a 16-bit counter, the maximum period is
+	 * 65536 / 0.256 = 256 seconds.
+	 */
+	if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
+		return -EINVAL;
+
+	/* Set new watchdog time. It will be used when
+	   ks8695_wdt_start() is called. */
+	wdt_time = new_time;
+	return 0;
+}
+
+/* ......................................................................... */
+
+/*
+ * Watchdog device is opened, and watchdog starts running.
+ */
+static int ks8695_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &ks8695wdt_busy))
+		return -EBUSY;
+
+	ks8695_wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+/*
+ * Close the watchdog device.
+ * If CONFIG_WATCHDOG_NOWAYOUT is NOT defined then the watchdog is also
+ *  disabled.
+ */
+static int ks8695_wdt_close(struct inode *inode, struct file *file)
+{
+	/* Disable the watchdog when file is closed */
+	if (!nowayout)
+		ks8695_wdt_stop();
+	clear_bit(0, &ks8695wdt_busy);
+	return 0;
+}
+
+static struct watchdog_info ks8695_wdt_info = {
+	.identity	= "ks8695 watchdog",
+	.options	= WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+};
+
+/*
+ * Handle commands from user-space.
+ */
+static long ks8695_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_value;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ks8695_wdt_info,
+					sizeof(ks8695_wdt_info)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+		if (get_user(new_value, p))
+			return -EFAULT;
+		if (new_value & WDIOS_DISABLECARD)
+			ks8695_wdt_stop();
+		if (new_value & WDIOS_ENABLECARD)
+			ks8695_wdt_start();
+		return 0;
+	case WDIOC_KEEPALIVE:
+		ks8695_wdt_reload();	/* pat the watchdog */
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_value, p))
+			return -EFAULT;
+		if (ks8695_wdt_settimeout(new_value))
+			return -EINVAL;
+		/* Enable new time value */
+		ks8695_wdt_start();
+		/* Return current value */
+		return put_user(wdt_time, p);
+	case WDIOC_GETTIMEOUT:
+		return put_user(wdt_time, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/*
+ * Pat the watchdog whenever device is written to.
+ */
+static ssize_t ks8695_wdt_write(struct file *file, const char *data,
+						size_t len, loff_t *ppos)
+{
+	ks8695_wdt_reload();		/* pat the watchdog */
+	return len;
+}
+
+/* ......................................................................... */
+
+static const struct file_operations ks8695wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl	= ks8695_wdt_ioctl,
+	.open		= ks8695_wdt_open,
+	.release	= ks8695_wdt_close,
+	.write		= ks8695_wdt_write,
+};
+
+static struct miscdevice ks8695wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &ks8695wdt_fops,
+};
+
+static int __init ks8695wdt_probe(struct platform_device *pdev)
+{
+	int res;
+
+	if (ks8695wdt_miscdev.parent)
+		return -EBUSY;
+	ks8695wdt_miscdev.parent = &pdev->dev;
+
+	res = misc_register(&ks8695wdt_miscdev);
+	if (res)
+		return res;
+
+	printk(KERN_INFO "KS8695 Watchdog Timer enabled (%d seconds%s)\n",
+				wdt_time, nowayout ? ", nowayout" : "");
+	return 0;
+}
+
+static int __exit ks8695wdt_remove(struct platform_device *pdev)
+{
+	int res;
+
+	res = misc_deregister(&ks8695wdt_miscdev);
+	if (!res)
+		ks8695wdt_miscdev.parent = NULL;
+
+	return res;
+}
+
+static void ks8695wdt_shutdown(struct platform_device *pdev)
+{
+	ks8695_wdt_stop();
+}
+
+#ifdef CONFIG_PM
+
+static int ks8695wdt_suspend(struct platform_device *pdev, pm_message_t message)
+{
+	ks8695_wdt_stop();
+	return 0;
+}
+
+static int ks8695wdt_resume(struct platform_device *pdev)
+{
+	if (ks8695wdt_busy)
+		ks8695_wdt_start();
+	return 0;
+}
+
+#else
+#define ks8695wdt_suspend NULL
+#define ks8695wdt_resume	NULL
+#endif
+
+static struct platform_driver ks8695wdt_driver = {
+	.probe		= ks8695wdt_probe,
+	.remove		= __exit_p(ks8695wdt_remove),
+	.shutdown	= ks8695wdt_shutdown,
+	.suspend	= ks8695wdt_suspend,
+	.resume		= ks8695wdt_resume,
+	.driver		= {
+		.name	= "ks8695_wdt",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init ks8695_wdt_init(void)
+{
+	spin_lock_init(&ks8695_lock);
+	/* Check that the heartbeat value is within range;
+	   if not reset to the default */
+	if (ks8695_wdt_settimeout(wdt_time)) {
+		ks8695_wdt_settimeout(WDT_DEFAULT_TIME);
+		pr_info("ks8695_wdt: wdt_time value must be 1 <= wdt_time <= %i, using %d\n",
+							wdt_time, WDT_MAX_TIME);
+	}
+	return platform_driver_register(&ks8695wdt_driver);
+}
+
+static void __exit ks8695_wdt_exit(void)
+{
+	platform_driver_unregister(&ks8695wdt_driver);
+}
+
+module_init(ks8695_wdt_init);
+module_exit(ks8695_wdt_exit);
+
+MODULE_AUTHOR("Andrew Victor");
+MODULE_DESCRIPTION("Watchdog driver for KS8695");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:ks8695_wdt");
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
new file mode 100644
index 0000000..2dfc275
--- /dev/null
+++ b/drivers/watchdog/machzwd.c
@@ -0,0 +1,458 @@
+/*
+ *  MachZ ZF-Logic Watchdog Timer driver for Linux
+ *
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ *  The author does NOT admit liability nor provide warranty for
+ *  any of this software. This material is provided "AS-IS" in
+ *  the hope that it may be useful for others.
+ *
+ *  Author: Fernando Fuganti <fuganti@conectiva.com.br>
+ *
+ *  Based on sbc60xxwdt.c by Jakob Oestergaard
+ *
+ *
+ *  We have two timers (wd#1, wd#2) driven by a 32 KHz clock with the
+ *  following periods:
+ *      wd#1 - 2 seconds;
+ *      wd#2 - 7.2 ms;
+ *  After the expiration of wd#1, it can generate a NMI, SCI, SMI, or
+ *  a system RESET and it starts wd#2 that unconditionaly will RESET
+ *  the system when the counter reaches zero.
+ *
+ *  14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *      Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+/* ports */
+#define ZF_IOBASE	0x218
+#define INDEX		0x218
+#define DATA_B		0x219
+#define DATA_W		0x21A
+#define DATA_D		0x21A
+
+/* indexes */			/* size */
+#define ZFL_VERSION	0x02	/* 16   */
+#define CONTROL 	0x10	/* 16   */
+#define STATUS		0x12	/* 8    */
+#define COUNTER_1	0x0C	/* 16   */
+#define COUNTER_2	0x0E	/* 8    */
+#define PULSE_LEN	0x0F	/* 8    */
+
+/* controls */
+#define ENABLE_WD1	0x0001
+#define ENABLE_WD2	0x0002
+#define RESET_WD1	0x0010
+#define RESET_WD2	0x0020
+#define GEN_SCI		0x0100
+#define GEN_NMI		0x0200
+#define GEN_SMI		0x0400
+#define GEN_RESET	0x0800
+
+
+/* utilities */
+
+#define WD1	0
+#define WD2	1
+
+#define zf_writew(port, data)  { outb(port, INDEX); outw(data, DATA_W); }
+#define zf_writeb(port, data)  { outb(port, INDEX); outb(data, DATA_B); }
+#define zf_get_ZFL_version()   zf_readw(ZFL_VERSION)
+
+
+static unsigned short zf_readw(unsigned char port)
+{
+	outb(port, INDEX);
+	return inw(DATA_W);
+}
+
+
+MODULE_AUTHOR("Fernando Fuganti <fuganti@conectiva.com.br>");
+MODULE_DESCRIPTION("MachZ ZF-Logic Watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#define PFX "machzwd"
+
+static struct watchdog_info zf_info = {
+	.options		= WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+	.firmware_version	= 1,
+	.identity		= "ZF-Logic watchdog",
+};
+
+
+/*
+ * action refers to action taken when watchdog resets
+ * 0 = GEN_RESET
+ * 1 = GEN_SMI
+ * 2 = GEN_NMI
+ * 3 = GEN_SCI
+ * defaults to GEN_RESET (0)
+ */
+static int action;
+module_param(action, int, 0);
+MODULE_PARM_DESC(action, "after watchdog resets, generate: 0 = RESET(*)  1 = SMI  2 = NMI  3 = SCI");
+
+static void zf_ping(unsigned long data);
+
+static int zf_action = GEN_RESET;
+static unsigned long zf_is_open;
+static char zf_expect_close;
+static DEFINE_SPINLOCK(zf_port_lock);
+static DEFINE_TIMER(zf_timer, zf_ping, 0, 0);
+static unsigned long next_heartbeat;
+
+
+/* timeout for user land heart beat (10 seconds) */
+#define ZF_USER_TIMEO (HZ*10)
+
+/* timeout for hardware watchdog (~500ms) */
+#define ZF_HW_TIMEO (HZ/2)
+
+/* number of ticks on WD#1 (driven by a 32KHz clock, 2s) */
+#define ZF_CTIMEOUT 0xffff
+
+#ifndef ZF_DEBUG
+#	define dprintk(format, args...)
+#else
+#	define dprintk(format, args...) printk(KERN_DEBUG PFX ":%s:%d: " format, __func__, __LINE__ , ## args)
+#endif
+
+
+static inline void zf_set_status(unsigned char new)
+{
+	zf_writeb(STATUS, new);
+}
+
+
+/* CONTROL register functions */
+
+static inline unsigned short zf_get_control(void)
+{
+	return zf_readw(CONTROL);
+}
+
+static inline void zf_set_control(unsigned short new)
+{
+	zf_writew(CONTROL, new);
+}
+
+
+/* WD#? counter functions */
+/*
+ *	Just set counter value
+ */
+
+static inline void zf_set_timer(unsigned short new, unsigned char n)
+{
+	switch (n) {
+	case WD1:
+		zf_writew(COUNTER_1, new);
+	case WD2:
+		zf_writeb(COUNTER_2, new > 0xff ? 0xff : new);
+	default:
+		return;
+	}
+}
+
+/*
+ * stop hardware timer
+ */
+static void zf_timer_off(void)
+{
+	unsigned int ctrl_reg = 0;
+	unsigned long flags;
+
+	/* stop internal ping */
+	del_timer_sync(&zf_timer);
+
+	spin_lock_irqsave(&zf_port_lock, flags);
+	/* stop watchdog timer */
+	ctrl_reg = zf_get_control();
+	ctrl_reg |= (ENABLE_WD1|ENABLE_WD2);	/* disable wd1 and wd2 */
+	ctrl_reg &= ~(ENABLE_WD1|ENABLE_WD2);
+	zf_set_control(ctrl_reg);
+	spin_unlock_irqrestore(&zf_port_lock, flags);
+
+	printk(KERN_INFO PFX ": Watchdog timer is now disabled\n");
+}
+
+
+/*
+ * start hardware timer
+ */
+static void zf_timer_on(void)
+{
+	unsigned int ctrl_reg = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&zf_port_lock, flags);
+
+	zf_writeb(PULSE_LEN, 0xff);
+
+	zf_set_timer(ZF_CTIMEOUT, WD1);
+
+	/* user land ping */
+	next_heartbeat = jiffies + ZF_USER_TIMEO;
+
+	/* start the timer for internal ping */
+	mod_timer(&zf_timer, jiffies + ZF_HW_TIMEO);
+
+	/* start watchdog timer */
+	ctrl_reg = zf_get_control();
+	ctrl_reg |= (ENABLE_WD1|zf_action);
+	zf_set_control(ctrl_reg);
+	spin_unlock_irqrestore(&zf_port_lock, flags);
+
+	printk(KERN_INFO PFX ": Watchdog timer is now enabled\n");
+}
+
+
+static void zf_ping(unsigned long data)
+{
+	unsigned int ctrl_reg = 0;
+	unsigned long flags;
+
+	zf_writeb(COUNTER_2, 0xff);
+
+	if (time_before(jiffies, next_heartbeat)) {
+		dprintk("time_before: %ld\n", next_heartbeat - jiffies);
+		/*
+		 * reset event is activated by transition from 0 to 1 on
+		 * RESET_WD1 bit and we assume that it is already zero...
+		 */
+
+		spin_lock_irqsave(&zf_port_lock, flags);
+		ctrl_reg = zf_get_control();
+		ctrl_reg |= RESET_WD1;
+		zf_set_control(ctrl_reg);
+
+		/* ...and nothing changes until here */
+		ctrl_reg &= ~(RESET_WD1);
+		zf_set_control(ctrl_reg);
+		spin_unlock_irqrestore(&zf_port_lock, flags);
+
+		mod_timer(&zf_timer, jiffies + ZF_HW_TIMEO);
+	} else
+		printk(KERN_CRIT PFX ": I will reset your machine\n");
+}
+
+static ssize_t zf_write(struct file *file, const char __user *buf, size_t count,
+								loff_t *ppos)
+{
+	/* See if we got the magic character */
+	if (count) {
+		/*
+		 * no need to check for close confirmation
+		 * no way to disable watchdog ;)
+		 */
+		if (!nowayout) {
+			size_t ofs;
+			/*
+			 * note: just in case someone wrote the magic character
+			 * five months ago...
+			 */
+			zf_expect_close = 0;
+
+			/* now scan */
+			for (ofs = 0; ofs != count; ofs++) {
+				char c;
+				if (get_user(c, buf + ofs))
+					return -EFAULT;
+				if (c == 'V') {
+					zf_expect_close = 42;
+					dprintk("zf_expect_close = 42\n");
+				}
+			}
+		}
+
+		/*
+		 * Well, anyhow someone wrote to us,
+		 * we should return that favour
+		 */
+		next_heartbeat = jiffies + ZF_USER_TIMEO;
+		dprintk("user ping at %ld\n", jiffies);
+	}
+	return count;
+}
+
+static long zf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &zf_info, sizeof(zf_info)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		zf_ping(0);
+		break;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int zf_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &zf_is_open))
+		return -EBUSY;
+	if (nowayout)
+		__module_get(THIS_MODULE);
+	zf_timer_on();
+	return nonseekable_open(inode, file);
+}
+
+static int zf_close(struct inode *inode, struct file *file)
+{
+	if (zf_expect_close == 42)
+		zf_timer_off();
+	else {
+		del_timer(&zf_timer);
+		printk(KERN_ERR PFX ": device file closed unexpectedly. Will not stop the WDT!\n");
+	}
+	clear_bit(0, &zf_is_open);
+	zf_expect_close = 0;
+	return 0;
+}
+
+/*
+ * Notifier for system down
+ */
+
+static int zf_notify_sys(struct notifier_block *this, unsigned long code,
+								void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		zf_timer_off();
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations zf_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= zf_write,
+	.unlocked_ioctl = zf_ioctl,
+	.open		= zf_open,
+	.release	= zf_close,
+};
+
+static struct miscdevice zf_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &zf_fops,
+};
+
+
+/*
+ * The device needs to learn about soft shutdowns in order to
+ * turn the timebomb registers off.
+ */
+static struct notifier_block zf_notifier = {
+	.notifier_call = zf_notify_sys,
+};
+
+static void __init zf_show_action(int act)
+{
+	char *str[] = { "RESET", "SMI", "NMI", "SCI" };
+
+	printk(KERN_INFO PFX ": Watchdog using action = %s\n", str[act]);
+}
+
+static int __init zf_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO PFX
+		": MachZ ZF-Logic Watchdog driver initializing.\n");
+
+	ret = zf_get_ZFL_version();
+	if (!ret || ret == 0xffff) {
+		printk(KERN_WARNING PFX ": no ZF-Logic found\n");
+		return -ENODEV;
+	}
+
+	if (action <= 3 && action >= 0)
+		zf_action = zf_action >> action;
+	else
+		action = 0;
+
+	zf_show_action(action);
+
+	if (!request_region(ZF_IOBASE, 3, "MachZ ZFL WDT")) {
+		printk(KERN_ERR "cannot reserve I/O ports at %d\n",
+							ZF_IOBASE);
+		ret = -EBUSY;
+		goto no_region;
+	}
+
+	ret = register_reboot_notifier(&zf_notifier);
+	if (ret) {
+		printk(KERN_ERR "can't register reboot notifier (err=%d)\n",
+									ret);
+		goto no_reboot;
+	}
+
+	ret = misc_register(&zf_miscdev);
+	if (ret) {
+		printk(KERN_ERR "can't misc_register on minor=%d\n",
+							WATCHDOG_MINOR);
+		goto no_misc;
+	}
+
+	zf_set_status(0);
+	zf_set_control(0);
+
+	return 0;
+
+no_misc:
+	unregister_reboot_notifier(&zf_notifier);
+no_reboot:
+	release_region(ZF_IOBASE, 3);
+no_region:
+	return ret;
+}
+
+
+static void __exit zf_exit(void)
+{
+	zf_timer_off();
+
+	misc_deregister(&zf_miscdev);
+	unregister_reboot_notifier(&zf_notifier);
+	release_region(ZF_IOBASE, 3);
+}
+
+module_init(zf_init);
+module_exit(zf_exit);
diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c
new file mode 100644
index 0000000..407b025
--- /dev/null
+++ b/drivers/watchdog/mixcomwd.c
@@ -0,0 +1,323 @@
+/*
+ * MixCom Watchdog: A Simple Hardware Watchdog Device
+ * Based on Softdog driver by Alan Cox and PC Watchdog driver by Ken Hollis
+ *
+ * Author: Gergely Madarasz <gorgo@itc.hu>
+ *
+ * Copyright (c) 1999 ITConsult-Pro Co. <info@itc.hu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Version 0.1 (99/04/15):
+ *		- first version
+ *
+ * Version 0.2 (99/06/16):
+ *		- added kernel timer watchdog ping after close
+ *		  since the hardware does not support watchdog shutdown
+ *
+ * Version 0.3 (99/06/21):
+ *		- added WDIOC_GETSTATUS and WDIOC_GETSUPPORT ioctl calls
+ *
+ * Version 0.3.1 (99/06/22):
+ *		- allow module removal while internal timer is active,
+ *		  print warning about probable reset
+ *
+ * Version 0.4 (99/11/15):
+ *		- support for one more type board
+ *
+ * Version 0.5 (2001/12/14) Matt Domsch <Matt_Domsch@dell.com>
+ *		- added nowayout module option to override
+ *		  CONFIG_WATCHDOG_NOWAYOUT
+ *
+ * Version 0.6 (2002/04/12): Rob Radez <rob@osinvestor.com>
+ *		- make mixcomwd_opened unsigned,
+ *		  removed lock_kernel/unlock_kernel from mixcomwd_release,
+ *		  modified ioctl a bit to conform to API
+ *
+ */
+
+#define VERSION "0.6"
+#define WATCHDOG_NAME "mixcomwd"
+#define PFX WATCHDOG_NAME ": "
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/ioport.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/timer.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+/*
+ * We have two types of cards that can be probed:
+ * 1) The Mixcom cards: these cards can be found at addresses
+ *    0x180, 0x280, 0x380 with an additional offset of 0xc10.
+ *    (Or 0xd90, 0xe90, 0xf90).
+ * 2) The FlashCOM cards: these cards can be set up at
+ *    0x300 -> 0x378, in 0x8 jumps with an offset of 0x04.
+ *    (Or 0x304 -> 0x37c in 0x8 jumps).
+ *    Each card has it's own ID.
+ */
+#define MIXCOM_ID 0x11
+#define FLASHCOM_ID 0x18
+static struct {
+	int ioport;
+	int id;
+} mixcomwd_io_info[] __devinitdata = {
+	/* The Mixcom cards */
+	{0x0d90, MIXCOM_ID},
+	{0x0e90, MIXCOM_ID},
+	{0x0f90, MIXCOM_ID},
+	/* The FlashCOM cards */
+	{0x0304, FLASHCOM_ID},
+	{0x030c, FLASHCOM_ID},
+	{0x0314, FLASHCOM_ID},
+	{0x031c, FLASHCOM_ID},
+	{0x0324, FLASHCOM_ID},
+	{0x032c, FLASHCOM_ID},
+	{0x0334, FLASHCOM_ID},
+	{0x033c, FLASHCOM_ID},
+	{0x0344, FLASHCOM_ID},
+	{0x034c, FLASHCOM_ID},
+	{0x0354, FLASHCOM_ID},
+	{0x035c, FLASHCOM_ID},
+	{0x0364, FLASHCOM_ID},
+	{0x036c, FLASHCOM_ID},
+	{0x0374, FLASHCOM_ID},
+	{0x037c, FLASHCOM_ID},
+	/* The end of the list */
+	{0x0000, 0},
+};
+
+static void mixcomwd_timerfun(unsigned long d);
+
+static unsigned long mixcomwd_opened; /* long req'd for setbit --RR */
+
+static int watchdog_port;
+static int mixcomwd_timer_alive;
+static DEFINE_TIMER(mixcomwd_timer, mixcomwd_timerfun, 0, 0);
+static char expect_close;
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static void mixcomwd_ping(void)
+{
+	outb_p(55, watchdog_port);
+	return;
+}
+
+static void mixcomwd_timerfun(unsigned long d)
+{
+	mixcomwd_ping();
+	mod_timer(&mixcomwd_timer, jiffies + 5 * HZ);
+}
+
+/*
+ *	Allow only one person to hold it open
+ */
+
+static int mixcomwd_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &mixcomwd_opened))
+		return -EBUSY;
+
+	mixcomwd_ping();
+
+	if (nowayout)
+		/*
+		 * fops_get() code via open() has already done
+		 * a try_module_get() so it is safe to do the
+		 * __module_get().
+		 */
+		__module_get(THIS_MODULE);
+	else {
+		if (mixcomwd_timer_alive) {
+			del_timer(&mixcomwd_timer);
+			mixcomwd_timer_alive = 0;
+		}
+	}
+	return nonseekable_open(inode, file);
+}
+
+static int mixcomwd_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		if (mixcomwd_timer_alive) {
+			printk(KERN_ERR PFX
+				"release called while internal timer alive");
+			return -EBUSY;
+		}
+		mixcomwd_timer_alive = 1;
+		mod_timer(&mixcomwd_timer, jiffies + 5 * HZ);
+	} else
+		printk(KERN_CRIT PFX
+		    "WDT device closed unexpectedly.  WDT will not stop!\n");
+
+	clear_bit(0, &mixcomwd_opened);
+	expect_close = 0;
+	return 0;
+}
+
+
+static ssize_t mixcomwd_write(struct file *file, const char __user *data,
+						size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		mixcomwd_ping();
+	}
+	return len;
+}
+
+static long mixcomwd_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int status;
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "MixCOM watchdog",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSTATUS:
+		status = mixcomwd_opened;
+		if (!nowayout)
+			status |= mixcomwd_timer_alive;
+		return put_user(status, p);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		mixcomwd_ping();
+		break;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static const struct file_operations mixcomwd_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= mixcomwd_write,
+	.unlocked_ioctl	= mixcomwd_ioctl,
+	.open		= mixcomwd_open,
+	.release	= mixcomwd_release,
+};
+
+static struct miscdevice mixcomwd_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &mixcomwd_fops,
+};
+
+static int __init checkcard(int port, int card_id)
+{
+	int id;
+
+	if (!request_region(port, 1, "MixCOM watchdog"))
+		return 0;
+
+	id = inb_p(port);
+	if (card_id == MIXCOM_ID)
+		id &= 0x3f;
+
+	if (id != card_id) {
+		release_region(port, 1);
+		return 0;
+	}
+	return 1;
+}
+
+static int __init mixcomwd_init(void)
+{
+	int i, ret, found = 0;
+
+	for (i = 0; !found && mixcomwd_io_info[i].ioport != 0; i++) {
+		if (checkcard(mixcomwd_io_info[i].ioport,
+			      mixcomwd_io_info[i].id)) {
+			found = 1;
+			watchdog_port = mixcomwd_io_info[i].ioport;
+		}
+	}
+
+	if (!found) {
+		printk(KERN_ERR PFX
+			"No card detected, or port not available.\n");
+		return -ENODEV;
+	}
+
+	ret = misc_register(&mixcomwd_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+					WATCHDOG_MINOR, ret);
+		goto error_misc_register_watchdog;
+	}
+
+	printk(KERN_INFO
+		"MixCOM watchdog driver v%s, watchdog port at 0x%3x\n",
+					VERSION, watchdog_port);
+
+	return 0;
+
+error_misc_register_watchdog:
+	release_region(watchdog_port, 1);
+	watchdog_port = 0x0000;
+	return ret;
+}
+
+static void __exit mixcomwd_exit(void)
+{
+	if (!nowayout) {
+		if (mixcomwd_timer_alive) {
+			printk(KERN_WARNING PFX "I quit now, hardware will"
+			       " probably reboot!\n");
+			del_timer_sync(&mixcomwd_timer);
+			mixcomwd_timer_alive = 0;
+		}
+	}
+	misc_deregister(&mixcomwd_miscdev);
+	release_region(watchdog_port, 1);
+}
+
+module_init(mixcomwd_init);
+module_exit(mixcomwd_exit);
+
+MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>");
+MODULE_DESCRIPTION("MixCom Watchdog driver");
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mpc5200_wdt.c b/drivers/watchdog/mpc5200_wdt.c
new file mode 100644
index 0000000..db91892
--- /dev/null
+++ b/drivers/watchdog/mpc5200_wdt.c
@@ -0,0 +1,293 @@
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+#include <linux/of_platform.h>
+#include <linux/uaccess.h>
+#include <asm/mpc52xx.h>
+
+
+#define GPT_MODE_WDT		(1<<15)
+#define GPT_MODE_CE		(1<<12)
+#define GPT_MODE_MS_TIMER	(0x4)
+
+
+struct mpc5200_wdt {
+	unsigned count;	/* timer ticks before watchdog kicks in */
+	long ipb_freq;
+	struct miscdevice miscdev;
+	struct resource mem;
+	struct mpc52xx_gpt __iomem *regs;
+	spinlock_t io_lock;
+};
+
+/* is_active stores wether or not the /dev/watchdog device is opened */
+static unsigned long is_active;
+
+/* misc devices don't provide a way, to get back to 'dev' or 'miscdev' from
+ * file operations, which sucks. But there can be max 1 watchdog anyway, so...
+ */
+static struct mpc5200_wdt *wdt_global;
+
+
+/* helper to calculate timeout in timer counts */
+static void mpc5200_wdt_set_timeout(struct mpc5200_wdt *wdt, int timeout)
+{
+	/* use biggest prescaler of 64k */
+	wdt->count = (wdt->ipb_freq + 0xffff) / 0x10000 * timeout;
+
+	if (wdt->count > 0xffff)
+		wdt->count = 0xffff;
+}
+/* return timeout in seconds (calculated from timer count) */
+static int mpc5200_wdt_get_timeout(struct mpc5200_wdt *wdt)
+{
+	return wdt->count * 0x10000 / wdt->ipb_freq;
+}
+
+
+/* watchdog operations */
+static int mpc5200_wdt_start(struct mpc5200_wdt *wdt)
+{
+	spin_lock(&wdt->io_lock);
+	/* disable */
+	out_be32(&wdt->regs->mode, 0);
+	/* set timeout, with maximum prescaler */
+	out_be32(&wdt->regs->count, 0x0 | wdt->count);
+	/* enable watchdog */
+	out_be32(&wdt->regs->mode, GPT_MODE_CE | GPT_MODE_WDT |
+						GPT_MODE_MS_TIMER);
+	spin_unlock(&wdt->io_lock);
+
+	return 0;
+}
+static int mpc5200_wdt_ping(struct mpc5200_wdt *wdt)
+{
+	spin_lock(&wdt->io_lock);
+	/* writing A5 to OCPW resets the watchdog */
+	out_be32(&wdt->regs->mode, 0xA5000000 |
+				(0xffffff & in_be32(&wdt->regs->mode)));
+	spin_unlock(&wdt->io_lock);
+	return 0;
+}
+static int mpc5200_wdt_stop(struct mpc5200_wdt *wdt)
+{
+	spin_lock(&wdt->io_lock);
+	/* disable */
+	out_be32(&wdt->regs->mode, 0);
+	spin_unlock(&wdt->io_lock);
+	return 0;
+}
+
+
+/* file operations */
+static ssize_t mpc5200_wdt_write(struct file *file, const char __user *data,
+		size_t len, loff_t *ppos)
+{
+	struct mpc5200_wdt *wdt = file->private_data;
+	mpc5200_wdt_ping(wdt);
+	return 0;
+}
+static struct watchdog_info mpc5200_wdt_info = {
+	.options	= WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	.identity	= "mpc5200 watchdog on GPT0",
+};
+static long mpc5200_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	struct mpc5200_wdt *wdt = file->private_data;
+	int __user *data = (int __user *)arg;
+	int timeout;
+	int ret = 0;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user(data, &mpc5200_wdt_info,
+						sizeof(mpc5200_wdt_info));
+		if (ret)
+			ret = -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, data);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		mpc5200_wdt_ping(wdt);
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(timeout, data);
+		if (ret)
+			break;
+		mpc5200_wdt_set_timeout(wdt, timeout);
+		mpc5200_wdt_start(wdt);
+		/* fall through and return the timeout */
+
+	case WDIOC_GETTIMEOUT:
+		timeout = mpc5200_wdt_get_timeout(wdt);
+		ret = put_user(timeout, data);
+		break;
+
+	default:
+		ret = -ENOTTY;
+	}
+	return ret;
+}
+
+static int mpc5200_wdt_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &is_active))
+		return -EBUSY;
+
+	/* Set and activate the watchdog */
+	mpc5200_wdt_set_timeout(wdt_global, 30);
+	mpc5200_wdt_start(wdt_global);
+	file->private_data = wdt_global;
+	return nonseekable_open(inode, file);
+}
+static int mpc5200_wdt_release(struct inode *inode, struct file *file)
+{
+#if WATCHDOG_NOWAYOUT == 0
+	struct mpc5200_wdt *wdt = file->private_data;
+	mpc5200_wdt_stop(wdt);
+	wdt->count = 0;		/* == disabled */
+#endif
+	clear_bit(0, &is_active);
+	return 0;
+}
+
+static const struct file_operations mpc5200_wdt_fops = {
+	.owner	= THIS_MODULE,
+	.write	= mpc5200_wdt_write,
+	.unlocked_ioctl	= mpc5200_wdt_ioctl,
+	.open	= mpc5200_wdt_open,
+	.release = mpc5200_wdt_release,
+};
+
+/* module operations */
+static int mpc5200_wdt_probe(struct of_device *op,
+					const struct of_device_id *match)
+{
+	struct mpc5200_wdt *wdt;
+	int err;
+	const void *has_wdt;
+	int size;
+
+	has_wdt = of_get_property(op->node, "has-wdt", NULL);
+	if (!has_wdt)
+		has_wdt = of_get_property(op->node, "fsl,has-wdt", NULL);
+	if (!has_wdt)
+		return -ENODEV;
+
+	wdt = kzalloc(sizeof(*wdt), GFP_KERNEL);
+	if (!wdt)
+		return -ENOMEM;
+
+	wdt->ipb_freq = mpc52xx_find_ipb_freq(op->node);
+
+	err = of_address_to_resource(op->node, 0, &wdt->mem);
+	if (err)
+		goto out_free;
+	size = wdt->mem.end - wdt->mem.start + 1;
+	if (!request_mem_region(wdt->mem.start, size, "mpc5200_wdt")) {
+		err = -ENODEV;
+		goto out_free;
+	}
+	wdt->regs = ioremap(wdt->mem.start, size);
+	if (!wdt->regs) {
+		err = -ENODEV;
+		goto out_release;
+	}
+
+	dev_set_drvdata(&op->dev, wdt);
+	spin_lock_init(&wdt->io_lock);
+
+	wdt->miscdev = (struct miscdevice) {
+		.minor	= WATCHDOG_MINOR,
+		.name	= "watchdog",
+		.fops	= &mpc5200_wdt_fops,
+		.parent = &op->dev,
+	};
+	wdt_global = wdt;
+	err = misc_register(&wdt->miscdev);
+	if (!err)
+		return 0;
+
+	iounmap(wdt->regs);
+out_release:
+	release_mem_region(wdt->mem.start, size);
+out_free:
+	kfree(wdt);
+	return err;
+}
+
+static int mpc5200_wdt_remove(struct of_device *op)
+{
+	struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
+
+	mpc5200_wdt_stop(wdt);
+	misc_deregister(&wdt->miscdev);
+	iounmap(wdt->regs);
+	release_mem_region(wdt->mem.start, wdt->mem.end - wdt->mem.start + 1);
+	kfree(wdt);
+
+	return 0;
+}
+static int mpc5200_wdt_suspend(struct of_device *op, pm_message_t state)
+{
+	struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
+	mpc5200_wdt_stop(wdt);
+	return 0;
+}
+static int mpc5200_wdt_resume(struct of_device *op)
+{
+	struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
+	if (wdt->count)
+		mpc5200_wdt_start(wdt);
+	return 0;
+}
+static int mpc5200_wdt_shutdown(struct of_device *op)
+{
+	struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
+	mpc5200_wdt_stop(wdt);
+	return 0;
+}
+
+static struct of_device_id mpc5200_wdt_match[] = {
+	{ .compatible = "mpc5200-gpt", },
+	{ .compatible = "fsl,mpc5200-gpt", },
+	{},
+};
+static struct of_platform_driver mpc5200_wdt_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "mpc5200-gpt-wdt",
+	.match_table	= mpc5200_wdt_match,
+	.probe		= mpc5200_wdt_probe,
+	.remove		= mpc5200_wdt_remove,
+	.suspend	= mpc5200_wdt_suspend,
+	.resume		= mpc5200_wdt_resume,
+	.shutdown	= mpc5200_wdt_shutdown,
+};
+
+
+static int __init mpc5200_wdt_init(void)
+{
+	return of_register_platform_driver(&mpc5200_wdt_driver);
+}
+
+static void __exit mpc5200_wdt_exit(void)
+{
+	of_unregister_platform_driver(&mpc5200_wdt_driver);
+}
+
+module_init(mpc5200_wdt_init);
+module_exit(mpc5200_wdt_exit);
+
+MODULE_AUTHOR("Domen Puncer <domen.puncer@telargo.com>");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
new file mode 100644
index 0000000..38c588e
--- /dev/null
+++ b/drivers/watchdog/mpc8xxx_wdt.c
@@ -0,0 +1,325 @@
+/*
+ * mpc8xxx_wdt.c - MPC8xx/MPC83xx/MPC86xx watchdog userspace interface
+ *
+ * Authors: Dave Updegraff <dave@cray.org>
+ * 	    Kumar Gala <galak@kernel.crashing.org>
+ * 		Attribution: from 83xx_wst: Florian Schirmer <jolt@tuxbox.org>
+ * 				..and from sc520_wdt
+ * Copyright (c) 2008  MontaVista Software, Inc.
+ *                     Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * Note: it appears that you can only actually ENABLE or DISABLE the thing
+ * once after POR. Once enabled, you cannot disable, and vice versa.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/of_platform.h>
+#include <linux/module.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <sysdev/fsl_soc.h>
+
+struct mpc8xxx_wdt {
+	__be32 res0;
+	__be32 swcrr; /* System watchdog control register */
+#define SWCRR_SWTC 0xFFFF0000 /* Software Watchdog Time Count. */
+#define SWCRR_SWEN 0x00000004 /* Watchdog Enable bit. */
+#define SWCRR_SWRI 0x00000002 /* Software Watchdog Reset/Interrupt Select bit.*/
+#define SWCRR_SWPR 0x00000001 /* Software Watchdog Counter Prescale bit. */
+	__be32 swcnr; /* System watchdog count register */
+	u8 res1[2];
+	__be16 swsrr; /* System watchdog service register */
+	u8 res2[0xF0];
+};
+
+struct mpc8xxx_wdt_type {
+	int prescaler;
+	bool hw_enabled;
+};
+
+static struct mpc8xxx_wdt __iomem *wd_base;
+static int mpc8xxx_wdt_init_late(void);
+
+static u16 timeout = 0xffff;
+module_param(timeout, ushort, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in ticks. (0<timeout<65536, default=65535");
+
+static int reset = 1;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset,
+	"Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
+		 "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * We always prescale, but if someone really doesn't want to they can set this
+ * to 0
+ */
+static int prescale = 1;
+static unsigned int timeout_sec;
+
+static unsigned long wdt_is_open;
+static DEFINE_SPINLOCK(wdt_spinlock);
+
+static void mpc8xxx_wdt_keepalive(void)
+{
+	/* Ping the WDT */
+	spin_lock(&wdt_spinlock);
+	out_be16(&wd_base->swsrr, 0x556c);
+	out_be16(&wd_base->swsrr, 0xaa39);
+	spin_unlock(&wdt_spinlock);
+}
+
+static void mpc8xxx_wdt_timer_ping(unsigned long arg);
+static DEFINE_TIMER(wdt_timer, mpc8xxx_wdt_timer_ping, 0, 0);
+
+static void mpc8xxx_wdt_timer_ping(unsigned long arg)
+{
+	mpc8xxx_wdt_keepalive();
+	/* We're pinging it twice faster than needed, just to be sure. */
+	mod_timer(&wdt_timer, jiffies + HZ * timeout_sec / 2);
+}
+
+static void mpc8xxx_wdt_pr_warn(const char *msg)
+{
+	pr_crit("mpc8xxx_wdt: %s, expect the %s soon!\n", msg,
+		reset ? "reset" : "machine check exception");
+}
+
+static ssize_t mpc8xxx_wdt_write(struct file *file, const char __user *buf,
+				 size_t count, loff_t *ppos)
+{
+	if (count)
+		mpc8xxx_wdt_keepalive();
+	return count;
+}
+
+static int mpc8xxx_wdt_open(struct inode *inode, struct file *file)
+{
+	u32 tmp = SWCRR_SWEN;
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+
+	/* Once we start the watchdog we can't stop it */
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Good, fire up the show */
+	if (prescale)
+		tmp |= SWCRR_SWPR;
+	if (reset)
+		tmp |= SWCRR_SWRI;
+
+	tmp |= timeout << 16;
+
+	out_be32(&wd_base->swcrr, tmp);
+
+	del_timer_sync(&wdt_timer);
+
+	return nonseekable_open(inode, file);
+}
+
+static int mpc8xxx_wdt_release(struct inode *inode, struct file *file)
+{
+	if (!nowayout)
+		mpc8xxx_wdt_timer_ping(0);
+	else
+		mpc8xxx_wdt_pr_warn("watchdog closed");
+	clear_bit(0, &wdt_is_open);
+	return 0;
+}
+
+static long mpc8xxx_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING,
+		.firmware_version = 1,
+		.identity = "MPC8xxx",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		mpc8xxx_wdt_keepalive();
+		return 0;
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout_sec, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations mpc8xxx_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= mpc8xxx_wdt_write,
+	.unlocked_ioctl	= mpc8xxx_wdt_ioctl,
+	.open		= mpc8xxx_wdt_open,
+	.release	= mpc8xxx_wdt_release,
+};
+
+static struct miscdevice mpc8xxx_wdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &mpc8xxx_wdt_fops,
+};
+
+static int __devinit mpc8xxx_wdt_probe(struct of_device *ofdev,
+				       const struct of_device_id *match)
+{
+	int ret;
+	struct device_node *np = ofdev->node;
+	struct mpc8xxx_wdt_type *wdt_type = match->data;
+	u32 freq = fsl_get_sys_freq();
+	bool enabled;
+
+	if (!freq || freq == -1)
+		return -EINVAL;
+
+	wd_base = of_iomap(np, 0);
+	if (!wd_base)
+		return -ENOMEM;
+
+	enabled = in_be32(&wd_base->swcrr) & SWCRR_SWEN;
+	if (!enabled && wdt_type->hw_enabled) {
+		pr_info("mpc8xxx_wdt: could not be enabled in software\n");
+		ret = -ENOSYS;
+		goto err_unmap;
+	}
+
+	/* Calculate the timeout in seconds */
+	if (prescale)
+		timeout_sec = (timeout * wdt_type->prescaler) / freq;
+	else
+		timeout_sec = timeout / freq;
+
+#ifdef MODULE
+	ret = mpc8xxx_wdt_init_late();
+	if (ret)
+		goto err_unmap;
+#endif
+
+	pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d "
+		"(%d seconds)\n", reset ? "reset" : "interrupt", timeout,
+		timeout_sec);
+
+	/*
+	 * If the watchdog was previously enabled or we're running on
+	 * MPC8xxx, we should ping the wdt from the kernel until the
+	 * userspace handles it.
+	 */
+	if (enabled)
+		mpc8xxx_wdt_timer_ping(0);
+	return 0;
+err_unmap:
+	iounmap(wd_base);
+	wd_base = NULL;
+	return ret;
+}
+
+static int __devexit mpc8xxx_wdt_remove(struct of_device *ofdev)
+{
+	mpc8xxx_wdt_pr_warn("watchdog removed");
+	del_timer_sync(&wdt_timer);
+	misc_deregister(&mpc8xxx_wdt_miscdev);
+	iounmap(wd_base);
+
+	return 0;
+}
+
+static const struct of_device_id mpc8xxx_wdt_match[] = {
+	{
+		.compatible = "mpc83xx_wdt",
+		.data = &(struct mpc8xxx_wdt_type) {
+			.prescaler = 0x10000,
+		},
+	},
+	{
+		.compatible = "fsl,mpc8610-wdt",
+		.data = &(struct mpc8xxx_wdt_type) {
+			.prescaler = 0x10000,
+			.hw_enabled = true,
+		},
+	},
+	{
+		.compatible = "fsl,mpc823-wdt",
+		.data = &(struct mpc8xxx_wdt_type) {
+			.prescaler = 0x800,
+		},
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mpc8xxx_wdt_match);
+
+static struct of_platform_driver mpc8xxx_wdt_driver = {
+	.match_table	= mpc8xxx_wdt_match,
+	.probe		= mpc8xxx_wdt_probe,
+	.remove		= __devexit_p(mpc8xxx_wdt_remove),
+	.driver		= {
+		.name	= "mpc8xxx_wdt",
+		.owner	= THIS_MODULE,
+	},
+};
+
+/*
+ * We do wdt initialization in two steps: arch_initcall probes the wdt
+ * very early to start pinging the watchdog (misc devices are not yet
+ * available), and later module_init() just registers the misc device.
+ */
+static int mpc8xxx_wdt_init_late(void)
+{
+	int ret;
+
+	if (!wd_base)
+		return -ENODEV;
+
+	ret = misc_register(&mpc8xxx_wdt_miscdev);
+	if (ret) {
+		pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+			WATCHDOG_MINOR, ret);
+		return ret;
+	}
+	return 0;
+}
+#ifndef MODULE
+module_init(mpc8xxx_wdt_init_late);
+#endif
+
+static int __init mpc8xxx_wdt_init(void)
+{
+	return of_register_platform_driver(&mpc8xxx_wdt_driver);
+}
+arch_initcall(mpc8xxx_wdt_init);
+
+static void __exit mpc8xxx_wdt_exit(void)
+{
+	of_unregister_platform_driver(&mpc8xxx_wdt_driver);
+}
+module_exit(mpc8xxx_wdt_exit);
+
+MODULE_AUTHOR("Dave Updegraff, Kumar Gala");
+MODULE_DESCRIPTION("Driver for watchdog timer in MPC8xx/MPC83xx/MPC86xx "
+		   "uProcessors");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c
new file mode 100644
index 0000000..1130ad6
--- /dev/null
+++ b/drivers/watchdog/mpcore_wdt.c
@@ -0,0 +1,449 @@
+/*
+ *	Watchdog driver for the mpcore watchdog timer
+ *
+ *	(c) Copyright 2004 ARM Limited
+ *
+ *	Based on the SoftDog driver:
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * 						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+
+#include <asm/hardware/arm_twd.h>
+
+struct mpcore_wdt {
+	unsigned long	timer_alive;
+	struct device	*dev;
+	void __iomem	*base;
+	int		irq;
+	unsigned int	perturb;
+	char		expect_close;
+};
+
+static struct platform_device *mpcore_wdt_dev;
+extern unsigned int mpcore_timer_rate;
+
+#define TIMER_MARGIN	60
+static int mpcore_margin = TIMER_MARGIN;
+module_param(mpcore_margin, int, 0);
+MODULE_PARM_DESC(mpcore_margin,
+	"MPcore timer margin in seconds. (0 < mpcore_margin < 65536, default="
+				__MODULE_STRING(TIMER_MARGIN) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#define ONLY_TESTING	0
+static int mpcore_noboot = ONLY_TESTING;
+module_param(mpcore_noboot, int, 0);
+MODULE_PARM_DESC(mpcore_noboot, "MPcore watchdog action, set to 1 to ignore reboots, 0 to reboot (default=" __MODULE_STRING(ONLY_TESTING) ")");
+
+/*
+ *	This is the interrupt handler.  Note that we only use this
+ *	in testing mode, so don't actually do a reboot here.
+ */
+static irqreturn_t mpcore_wdt_fire(int irq, void *arg)
+{
+	struct mpcore_wdt *wdt = arg;
+
+	/* Check it really was our interrupt */
+	if (readl(wdt->base + TWD_WDOG_INTSTAT)) {
+		dev_printk(KERN_CRIT, wdt->dev,
+					"Triggered - Reboot ignored.\n");
+		/* Clear the interrupt on the watchdog */
+		writel(1, wdt->base + TWD_WDOG_INTSTAT);
+		return IRQ_HANDLED;
+	}
+	return IRQ_NONE;
+}
+
+/*
+ *	mpcore_wdt_keepalive - reload the timer
+ *
+ *	Note that the spec says a DIFFERENT value must be written to the reload
+ *	register each time.  The "perturb" variable deals with this by adding 1
+ *	to the count every other time the function is called.
+ */
+static void mpcore_wdt_keepalive(struct mpcore_wdt *wdt)
+{
+	unsigned int count;
+
+	/* Assume prescale is set to 256 */
+	count = (mpcore_timer_rate / 256) * mpcore_margin;
+
+	/* Reload the counter */
+	spin_lock(&wdt_lock);
+	writel(count + wdt->perturb, wdt->base + TWD_WDOG_LOAD);
+	wdt->perturb = wdt->perturb ? 0 : 1;
+	spin_unlock(&wdt_lock);
+}
+
+static void mpcore_wdt_stop(struct mpcore_wdt *wdt)
+{
+	spin_lock(&wdt_lock);
+	writel(0x12345678, wdt->base + TWD_WDOG_DISABLE);
+	writel(0x87654321, wdt->base + TWD_WDOG_DISABLE);
+	writel(0x0, wdt->base + TWD_WDOG_CONTROL);
+	spin_unlock(&wdt_lock);
+}
+
+static void mpcore_wdt_start(struct mpcore_wdt *wdt)
+{
+	dev_printk(KERN_INFO, wdt->dev, "enabling watchdog.\n");
+
+	spin_lock(&wdt_lock);
+	/* This loads the count register but does NOT start the count yet */
+	mpcore_wdt_keepalive(wdt);
+
+	if (mpcore_noboot) {
+		/* Enable watchdog - prescale=256, watchdog mode=0, enable=1 */
+		writel(0x0000FF01, wdt->base + TWD_WDOG_CONTROL);
+	} else {
+		/* Enable watchdog - prescale=256, watchdog mode=1, enable=1 */
+		writel(0x0000FF09, wdt->base + TWD_WDOG_CONTROL);
+	}
+	spin_unlock(&wdt_lock);
+}
+
+static int mpcore_wdt_set_heartbeat(int t)
+{
+	if (t < 0x0001 || t > 0xFFFF)
+		return -EINVAL;
+
+	mpcore_margin = t;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+static int mpcore_wdt_open(struct inode *inode, struct file *file)
+{
+	struct mpcore_wdt *wdt = platform_get_drvdata(mpcore_wdt_dev);
+
+	if (test_and_set_bit(0, &wdt->timer_alive))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	file->private_data = wdt;
+
+	/*
+	 *	Activate timer
+	 */
+	mpcore_wdt_start(wdt);
+
+	return nonseekable_open(inode, file);
+}
+
+static int mpcore_wdt_release(struct inode *inode, struct file *file)
+{
+	struct mpcore_wdt *wdt = file->private_data;
+
+	/*
+	 *	Shut off the timer.
+	 * 	Lock it in if it's a module and we set nowayout
+	 */
+	if (wdt->expect_close == 42)
+		mpcore_wdt_stop(wdt);
+	else {
+		dev_printk(KERN_CRIT, wdt->dev,
+				"unexpected close, not stopping watchdog!\n");
+		mpcore_wdt_keepalive(wdt);
+	}
+	clear_bit(0, &wdt->timer_alive);
+	wdt->expect_close = 0;
+	return 0;
+}
+
+static ssize_t mpcore_wdt_write(struct file *file, const char *data,
+						size_t len, loff_t *ppos)
+{
+	struct mpcore_wdt *wdt = file->private_data;
+
+	/*
+	 *	Refresh the timer.
+	 */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			wdt->expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					wdt->expect_close = 42;
+			}
+		}
+		mpcore_wdt_keepalive(wdt);
+	}
+	return len;
+}
+
+static struct watchdog_info ident = {
+	.options		= WDIOF_SETTIMEOUT |
+				  WDIOF_KEEPALIVEPING |
+				  WDIOF_MAGICCLOSE,
+	.identity		= "MPcore Watchdog",
+};
+
+static long mpcore_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	struct mpcore_wdt *wdt = file->private_data;
+	int ret;
+	union {
+		struct watchdog_info ident;
+		int i;
+	} uarg;
+
+	if (_IOC_DIR(cmd) && _IOC_SIZE(cmd) > sizeof(uarg))
+		return -ENOTTY;
+
+	if (_IOC_DIR(cmd) & _IOC_WRITE) {
+		ret = copy_from_user(&uarg, (void __user *)arg, _IOC_SIZE(cmd));
+		if (ret)
+			return -EFAULT;
+	}
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		uarg.ident = ident;
+		ret = 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		uarg.i = 0;
+		ret = 0;
+		break;
+
+	case WDIOC_SETOPTIONS:
+		ret = -EINVAL;
+		if (uarg.i & WDIOS_DISABLECARD) {
+			mpcore_wdt_stop(wdt);
+			ret = 0;
+		}
+		if (uarg.i & WDIOS_ENABLECARD) {
+			mpcore_wdt_start(wdt);
+			ret = 0;
+		}
+		break;
+
+	case WDIOC_KEEPALIVE:
+		mpcore_wdt_keepalive(wdt);
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = mpcore_wdt_set_heartbeat(uarg.i);
+		if (ret)
+			break;
+
+		mpcore_wdt_keepalive(wdt);
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		uarg.i = mpcore_margin;
+		ret = 0;
+		break;
+
+	default:
+		return -ENOTTY;
+	}
+
+	if (ret == 0 && _IOC_DIR(cmd) & _IOC_READ) {
+		ret = copy_to_user((void __user *)arg, &uarg, _IOC_SIZE(cmd));
+		if (ret)
+			ret = -EFAULT;
+	}
+	return ret;
+}
+
+/*
+ *	System shutdown handler.  Turn off the watchdog if we're
+ *	restarting or halting the system.
+ */
+static void mpcore_wdt_shutdown(struct platform_device *dev)
+{
+	struct mpcore_wdt *wdt = platform_get_drvdata(dev);
+
+	if (system_state == SYSTEM_RESTART || system_state == SYSTEM_HALT)
+		mpcore_wdt_stop(wdt);
+}
+
+/*
+ *	Kernel Interfaces
+ */
+static const struct file_operations mpcore_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= mpcore_wdt_write,
+	.unlocked_ioctl	= mpcore_wdt_ioctl,
+	.open		= mpcore_wdt_open,
+	.release	= mpcore_wdt_release,
+};
+
+static struct miscdevice mpcore_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &mpcore_wdt_fops,
+};
+
+static int __devinit mpcore_wdt_probe(struct platform_device *dev)
+{
+	struct mpcore_wdt *wdt;
+	struct resource *res;
+	int ret;
+
+	/* We only accept one device, and it must have an id of -1 */
+	if (dev->id != -1)
+		return -ENODEV;
+
+	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	if (!res) {
+		ret = -ENODEV;
+		goto err_out;
+	}
+
+	wdt = kzalloc(sizeof(struct mpcore_wdt), GFP_KERNEL);
+	if (!wdt) {
+		ret = -ENOMEM;
+		goto err_out;
+	}
+
+	wdt->dev = &dev->dev;
+	wdt->irq = platform_get_irq(dev, 0);
+	if (wdt->irq < 0) {
+		ret = -ENXIO;
+		goto err_free;
+	}
+	wdt->base = ioremap(res->start, res->end - res->start + 1);
+	if (!wdt->base) {
+		ret = -ENOMEM;
+		goto err_free;
+	}
+
+	mpcore_wdt_miscdev.parent = &dev->dev;
+	ret = misc_register(&mpcore_wdt_miscdev);
+	if (ret) {
+		dev_printk(KERN_ERR, _dev,
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto err_misc;
+	}
+
+	ret = request_irq(wdt->irq, mpcore_wdt_fire, IRQF_DISABLED,
+							"mpcore_wdt", wdt);
+	if (ret) {
+		dev_printk(KERN_ERR, _dev,
+			"cannot register IRQ%d for watchdog\n", wdt->irq);
+		goto err_irq;
+	}
+
+	mpcore_wdt_stop(wdt);
+	platform_set_drvdata(&dev->dev, wdt);
+	mpcore_wdt_dev = dev;
+
+	return 0;
+
+err_irq:
+	misc_deregister(&mpcore_wdt_miscdev);
+err_misc:
+	iounmap(wdt->base);
+err_free:
+	kfree(wdt);
+err_out:
+	return ret;
+}
+
+static int __devexit mpcore_wdt_remove(struct platform_device *dev)
+{
+	struct mpcore_wdt *wdt = platform_get_drvdata(dev);
+
+	platform_set_drvdata(dev, NULL);
+
+	misc_deregister(&mpcore_wdt_miscdev);
+
+	mpcore_wdt_dev = NULL;
+
+	free_irq(wdt->irq, wdt);
+	iounmap(wdt->base);
+	kfree(wdt);
+	return 0;
+}
+
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:mpcore_wdt");
+
+static struct platform_driver mpcore_wdt_driver = {
+	.probe		= mpcore_wdt_probe,
+	.remove		= __devexit_p(mpcore_wdt_remove),
+	.shutdown	= mpcore_wdt_shutdown,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "mpcore_wdt",
+	},
+};
+
+static char banner[] __initdata = KERN_INFO "MPcore Watchdog Timer: 0.1. mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n";
+
+static int __init mpcore_wdt_init(void)
+{
+	/*
+	 * Check that the margin value is within it's range;
+	 * if not reset to the default
+	 */
+	if (mpcore_wdt_set_heartbeat(mpcore_margin)) {
+		mpcore_wdt_set_heartbeat(TIMER_MARGIN);
+		printk(KERN_INFO "mpcore_margin value must be 0 < mpcore_margin < 65536, using %d\n",
+			TIMER_MARGIN);
+	}
+
+	printk(banner, mpcore_noboot, mpcore_margin, nowayout);
+
+	return platform_driver_register(&mpcore_wdt_driver);
+}
+
+static void __exit mpcore_wdt_exit(void)
+{
+	platform_driver_unregister(&mpcore_wdt_driver);
+}
+
+module_init(mpcore_wdt_init);
+module_exit(mpcore_wdt_exit);
+
+MODULE_AUTHOR("ARM Limited");
+MODULE_DESCRIPTION("MPcore Watchdog Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
new file mode 100644
index 0000000..3acce62
--- /dev/null
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -0,0 +1,267 @@
+/*
+ *      Driver for the MTX-1 Watchdog.
+ *
+ *      (C) Copyright 2005 4G Systems <info@4g-systems.biz>,
+ *							All Rights Reserved.
+ *                              http://www.4g-systems.biz
+ *
+ * 	(C) Copyright 2007 OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      Neither Michael Stickel nor 4G Systems admit liability nor provide
+ *      warranty for any of this software. This material is provided
+ *      "AS-IS" and at no charge.
+ *
+ *      (c) Copyright 2005    4G Systems <info@4g-systems.biz>
+ *
+ *      Release 0.01.
+ *      Author: Michael Stickel  michael.stickel@4g-systems.biz
+ *
+ *      Release 0.02.
+ *	Author: Florian Fainelli florian@openwrt.org
+ *		use the Linux watchdog/timer APIs
+ *
+ *      The Watchdog is configured to reset the MTX-1
+ *      if it is not triggered for 100 seconds.
+ *      It should not be triggered more often than 1.6 seconds.
+ *
+ *      A timer triggers the watchdog every 5 seconds, until
+ *      it is opened for the first time. After the first open
+ *      it MUST be triggered every 2..95 seconds.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+#include <linux/jiffies.h>
+#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-au1x00/au1000.h>
+
+#define MTX1_WDT_INTERVAL	(5 * HZ)
+
+static int ticks = 100 * HZ;
+
+static struct {
+	struct completion stop;
+	spinlock_t lock;
+	int running;
+	struct timer_list timer;
+	int queue;
+	int default_ticks;
+	unsigned long inuse;
+	unsigned gpio;
+} mtx1_wdt_device;
+
+static void mtx1_wdt_trigger(unsigned long unused)
+{
+	u32 tmp;
+
+	spin_lock(&mtx1_wdt_device.lock);
+	if (mtx1_wdt_device.running)
+		ticks--;
+	/*
+	 * toggle GPIO2_15
+	 */
+	tmp = au_readl(GPIO2_DIR);
+	tmp = (tmp & ~(1 << mtx1_wdt_device.gpio)) |
+	      ((~tmp) & (1 << mtx1_wdt_device.gpio));
+	au_writel(tmp, GPIO2_DIR);
+
+	if (mtx1_wdt_device.queue && ticks)
+		mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL);
+	else
+		complete(&mtx1_wdt_device.stop);
+	spin_unlock(&mtx1_wdt_device.lock);
+}
+
+static void mtx1_wdt_reset(void)
+{
+	ticks = mtx1_wdt_device.default_ticks;
+}
+
+
+static void mtx1_wdt_start(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&mtx1_wdt_device.lock, flags);
+	if (!mtx1_wdt_device.queue) {
+		mtx1_wdt_device.queue = 1;
+		gpio_set_value(mtx1_wdt_device.gpio, 1);
+		mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL);
+	}
+	mtx1_wdt_device.running++;
+	spin_unlock_irqrestore(&mtx1_wdt_device.lock, flags);
+}
+
+static int mtx1_wdt_stop(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&mtx1_wdt_device.lock, flags);
+	if (mtx1_wdt_device.queue) {
+		mtx1_wdt_device.queue = 0;
+		gpio_set_value(mtx1_wdt_device.gpio, 0);
+	}
+	ticks = mtx1_wdt_device.default_ticks;
+	spin_unlock_irqrestore(&mtx1_wdt_device.lock, flags);
+	return 0;
+}
+
+/* Filesystem functions */
+
+static int mtx1_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &mtx1_wdt_device.inuse))
+		return -EBUSY;
+	return nonseekable_open(inode, file);
+}
+
+
+static int mtx1_wdt_release(struct inode *inode, struct file *file)
+{
+	clear_bit(0, &mtx1_wdt_device.inuse);
+	return 0;
+}
+
+static long mtx1_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = (int __user *)argp;
+	unsigned int value;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_CARDRESET,
+		.identity = "MTX-1 WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		put_user(0, p);
+		break;
+	case WDIOC_SETOPTIONS:
+		if (get_user(value, p))
+			return -EFAULT;
+		if (value & WDIOS_ENABLECARD)
+			mtx1_wdt_start();
+		else if (value & WDIOS_DISABLECARD)
+			mtx1_wdt_stop();
+		else
+			return -EINVAL;
+		return 0;
+	case WDIOC_KEEPALIVE:
+		mtx1_wdt_reset();
+		break;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+
+static ssize_t mtx1_wdt_write(struct file *file, const char *buf,
+						size_t count, loff_t *ppos)
+{
+	if (!count)
+		return -EIO;
+	mtx1_wdt_reset();
+	return count;
+}
+
+static const struct file_operations mtx1_wdt_fops = {
+	.owner 		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl	= mtx1_wdt_ioctl,
+	.open 		= mtx1_wdt_open,
+	.write 		= mtx1_wdt_write,
+	.release 	= mtx1_wdt_release,
+};
+
+
+static struct miscdevice mtx1_wdt_misc = {
+	.minor 	= WATCHDOG_MINOR,
+	.name 	= "watchdog",
+	.fops 	= &mtx1_wdt_fops,
+};
+
+
+static int mtx1_wdt_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	mtx1_wdt_device.gpio = pdev->resource[0].start;
+
+	spin_lock_init(&mtx1_wdt_device.lock);
+	init_completion(&mtx1_wdt_device.stop);
+	mtx1_wdt_device.queue = 0;
+	clear_bit(0, &mtx1_wdt_device.inuse);
+	setup_timer(&mtx1_wdt_device.timer, mtx1_wdt_trigger, 0L);
+	mtx1_wdt_device.default_ticks = ticks;
+
+	ret = misc_register(&mtx1_wdt_misc);
+	if (ret < 0) {
+		printk(KERN_ERR " mtx-1_wdt : failed to register\n");
+		return ret;
+	}
+	mtx1_wdt_start();
+	printk(KERN_INFO "MTX-1 Watchdog driver\n");
+	return 0;
+}
+
+static int mtx1_wdt_remove(struct platform_device *pdev)
+{
+	/* FIXME: do we need to lock this test ? */
+	if (mtx1_wdt_device.queue) {
+		mtx1_wdt_device.queue = 0;
+		wait_for_completion(&mtx1_wdt_device.stop);
+	}
+	misc_deregister(&mtx1_wdt_misc);
+	return 0;
+}
+
+static struct platform_driver mtx1_wdt = {
+	.probe = mtx1_wdt_probe,
+	.remove = mtx1_wdt_remove,
+	.driver.name = "mtx1-wdt",
+	.driver.owner = THIS_MODULE,
+};
+
+static int __init mtx1_wdt_init(void)
+{
+	return platform_driver_register(&mtx1_wdt);
+}
+
+static void __exit mtx1_wdt_exit(void)
+{
+	platform_driver_unregister(&mtx1_wdt);
+}
+
+module_init(mtx1_wdt_init);
+module_exit(mtx1_wdt_exit);
+
+MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
+MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:mtx1-wdt");
diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c
new file mode 100644
index 0000000..acf589d
--- /dev/null
+++ b/drivers/watchdog/mv64x60_wdt.c
@@ -0,0 +1,328 @@
+/*
+ * mv64x60_wdt.c - MV64X60 (Marvell Discovery) watchdog userspace interface
+ *
+ * Author: James Chapman <jchapman@katalix.com>
+ *
+ * Platform-specific setup code should configure the dog to generate
+ * interrupt or reset as required.  This code only enables/disables
+ * and services the watchdog.
+ *
+ * Derived from mpc8xx_wdt.c, with the following copyright.
+ *
+ * 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+#include <linux/mv643xx.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#define MV64x60_WDT_WDC_OFFSET	0
+
+/*
+ * The watchdog configuration register contains a pair of 2-bit fields,
+ *   1.  a reload field, bits 27-26, which triggers a reload of
+ *       the countdown register, and
+ *   2.  an enable field, bits 25-24, which toggles between
+ *       enabling and disabling the watchdog timer.
+ * Bit 31 is a read-only field which indicates whether the
+ * watchdog timer is currently enabled.
+ *
+ * The low 24 bits contain the timer reload value.
+ */
+#define MV64x60_WDC_ENABLE_SHIFT	24
+#define MV64x60_WDC_SERVICE_SHIFT	26
+#define MV64x60_WDC_ENABLED_SHIFT	31
+
+#define MV64x60_WDC_ENABLED_TRUE	1
+#define MV64x60_WDC_ENABLED_FALSE	0
+
+/* Flags bits */
+#define MV64x60_WDOG_FLAG_OPENED	0
+
+static unsigned long wdt_flags;
+static int wdt_status;
+static void __iomem *mv64x60_wdt_regs;
+static int mv64x60_wdt_timeout;
+static int mv64x60_wdt_count;
+static unsigned int bus_clk;
+static char expect_close;
+static DEFINE_SPINLOCK(mv64x60_wdt_spinlock);
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static int mv64x60_wdt_toggle_wdc(int enabled_predicate, int field_shift)
+{
+	u32 data;
+	u32 enabled;
+	int ret = 0;
+
+	spin_lock(&mv64x60_wdt_spinlock);
+	data = readl(mv64x60_wdt_regs + MV64x60_WDT_WDC_OFFSET);
+	enabled = (data >> MV64x60_WDC_ENABLED_SHIFT) & 1;
+
+	/* only toggle the requested field if enabled state matches predicate */
+	if ((enabled ^ enabled_predicate) == 0) {
+		/* We write a 1, then a 2 -- to the appropriate field */
+		data = (1 << field_shift) | mv64x60_wdt_count;
+		writel(data, mv64x60_wdt_regs + MV64x60_WDT_WDC_OFFSET);
+
+		data = (2 << field_shift) | mv64x60_wdt_count;
+		writel(data, mv64x60_wdt_regs + MV64x60_WDT_WDC_OFFSET);
+		ret = 1;
+	}
+	spin_unlock(&mv64x60_wdt_spinlock);
+
+	return ret;
+}
+
+static void mv64x60_wdt_service(void)
+{
+	mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_TRUE,
+			       MV64x60_WDC_SERVICE_SHIFT);
+}
+
+static void mv64x60_wdt_handler_enable(void)
+{
+	if (mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_FALSE,
+				   MV64x60_WDC_ENABLE_SHIFT)) {
+		mv64x60_wdt_service();
+		printk(KERN_NOTICE "mv64x60_wdt: watchdog activated\n");
+	}
+}
+
+static void mv64x60_wdt_handler_disable(void)
+{
+	if (mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_TRUE,
+				   MV64x60_WDC_ENABLE_SHIFT))
+		printk(KERN_NOTICE "mv64x60_wdt: watchdog deactivated\n");
+}
+
+static void mv64x60_wdt_set_timeout(unsigned int timeout)
+{
+	/* maximum bus cycle count is 0xFFFFFFFF */
+	if (timeout > 0xFFFFFFFF / bus_clk)
+		timeout = 0xFFFFFFFF / bus_clk;
+
+	mv64x60_wdt_count = timeout * bus_clk >> 8;
+	mv64x60_wdt_timeout = timeout;
+}
+
+static int mv64x60_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(MV64x60_WDOG_FLAG_OPENED, &wdt_flags))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	mv64x60_wdt_handler_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static int mv64x60_wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		mv64x60_wdt_handler_disable();
+	else {
+		printk(KERN_CRIT
+		       "mv64x60_wdt: unexpected close, not stopping timer!\n");
+		mv64x60_wdt_service();
+	}
+	expect_close = 0;
+
+	clear_bit(MV64x60_WDOG_FLAG_OPENED, &wdt_flags);
+
+	return 0;
+}
+
+static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
+				 size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		mv64x60_wdt_service();
+	}
+
+	return len;
+}
+
+static long mv64x60_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	int timeout;
+	int options;
+	void __user *argp = (void __user *)arg;
+	static struct watchdog_info info = {
+		.options =	WDIOF_SETTIMEOUT	|
+				WDIOF_MAGICCLOSE	|
+				WDIOF_KEEPALIVEPING,
+		.firmware_version = 0,
+		.identity = "MV64x60 watchdog",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &info, sizeof(info)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		if (put_user(wdt_status, (int __user *)argp))
+			return -EFAULT;
+		wdt_status &= ~WDIOF_KEEPALIVEPING;
+		break;
+
+	case WDIOC_GETTEMP:
+		return -EOPNOTSUPP;
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(options, (int __user *)argp))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD)
+			mv64x60_wdt_handler_disable();
+
+		if (options & WDIOS_ENABLECARD)
+			mv64x60_wdt_handler_enable();
+		break;
+
+	case WDIOC_KEEPALIVE:
+		mv64x60_wdt_service();
+		wdt_status |= WDIOF_KEEPALIVEPING;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(timeout, (int __user *)argp))
+			return -EFAULT;
+		mv64x60_wdt_set_timeout(timeout);
+		/* Fall through */
+
+	case WDIOC_GETTIMEOUT:
+		if (put_user(mv64x60_wdt_timeout, (int __user *)argp))
+			return -EFAULT;
+		break;
+
+	default:
+		return -ENOTTY;
+	}
+
+	return 0;
+}
+
+static const struct file_operations mv64x60_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = mv64x60_wdt_write,
+	.unlocked_ioctl = mv64x60_wdt_ioctl,
+	.open = mv64x60_wdt_open,
+	.release = mv64x60_wdt_release,
+};
+
+static struct miscdevice mv64x60_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &mv64x60_wdt_fops,
+};
+
+static int __devinit mv64x60_wdt_probe(struct platform_device *dev)
+{
+	struct mv64x60_wdt_pdata *pdata = dev->dev.platform_data;
+	struct resource *r;
+	int timeout = 10;
+
+	bus_clk = 133;			/* in MHz */
+	if (pdata) {
+		timeout = pdata->timeout;
+		bus_clk = pdata->bus_clk;
+	}
+
+	/* Since bus_clk is truncated MHz, actual frequency could be
+	 * up to 1MHz higher.  Round up, since it's better to time out
+	 * too late than too soon.
+	 */
+	bus_clk++;
+	bus_clk *= 1000000;		/* convert to Hz */
+
+	r = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	if (!r)
+		return -ENODEV;
+
+	mv64x60_wdt_regs = ioremap(r->start, r->end - r->start + 1);
+	if (mv64x60_wdt_regs == NULL)
+		return -ENOMEM;
+
+	mv64x60_wdt_set_timeout(timeout);
+
+	mv64x60_wdt_handler_disable();	/* in case timer was already running */
+
+	return misc_register(&mv64x60_wdt_miscdev);
+}
+
+static int __devexit mv64x60_wdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&mv64x60_wdt_miscdev);
+
+	mv64x60_wdt_handler_disable();
+
+	iounmap(mv64x60_wdt_regs);
+
+	return 0;
+}
+
+static struct platform_driver mv64x60_wdt_driver = {
+	.probe = mv64x60_wdt_probe,
+	.remove = __devexit_p(mv64x60_wdt_remove),
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = MV64x60_WDT_NAME,
+	},
+};
+
+static int __init mv64x60_wdt_init(void)
+{
+	printk(KERN_INFO "MV64x60 watchdog driver\n");
+
+	return platform_driver_register(&mv64x60_wdt_driver);
+}
+
+static void __exit mv64x60_wdt_exit(void)
+{
+	platform_driver_unregister(&mv64x60_wdt_driver);
+}
+
+module_init(mv64x60_wdt_init);
+module_exit(mv64x60_wdt_exit);
+
+MODULE_AUTHOR("James Chapman <jchapman@katalix.com>");
+MODULE_DESCRIPTION("MV64x60 watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:" MV64x60_WDT_NAME);
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
new file mode 100644
index 0000000..2f2ce74
--- /dev/null
+++ b/drivers/watchdog/omap_wdt.c
@@ -0,0 +1,506 @@
+/*
+ * omap_wdt.c
+ *
+ * Watchdog driver for the TI OMAP 16xx & 24xx/34xx 32KHz (non-secure) watchdog
+ *
+ * Author: MontaVista Software, Inc.
+ *	 <gdavis@mvista.com> or <source@mvista.com>
+ *
+ * 2003 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * History:
+ *
+ * 20030527: George G. Davis <gdavis@mvista.com>
+ *	Initially based on linux-2.4.19-rmk7-pxa1/drivers/char/sa1100_wdt.c
+ *	(c) Copyright 2000 Oleg Drokin <green@crimea.edu>
+ *	Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ * Copyright (c) 2004 Texas Instruments.
+ *	1. Modified to support OMAP1610 32-KHz watchdog timer
+ *	2. Ported to 2.6 kernel
+ *
+ * Copyright (c) 2005 David Brownell
+ *	Use the driver model and standard identifiers; handle bigger timeouts.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/moduleparam.h>
+#include <linux/clk.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <mach/hardware.h>
+#include <mach/prcm.h>
+
+#include "omap_wdt.h"
+
+static struct platform_device *omap_wdt_dev;
+
+static unsigned timer_margin;
+module_param(timer_margin, uint, 0);
+MODULE_PARM_DESC(timer_margin, "initial watchdog timeout (in seconds)");
+
+static unsigned int wdt_trgr_pattern = 0x1234;
+static spinlock_t wdt_lock;
+
+struct omap_wdt_dev {
+	void __iomem    *base;          /* physical */
+	struct device   *dev;
+	int             omap_wdt_users;
+	struct clk      *armwdt_ck;
+	struct clk      *mpu_wdt_ick;
+	struct clk      *mpu_wdt_fck;
+	struct resource *mem;
+	struct miscdevice omap_wdt_miscdev;
+};
+
+static void omap_wdt_ping(struct omap_wdt_dev *wdev)
+{
+	void __iomem    *base = wdev->base;
+
+	/* wait for posted write to complete */
+	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
+		cpu_relax();
+
+	wdt_trgr_pattern = ~wdt_trgr_pattern;
+	__raw_writel(wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR));
+
+	/* wait for posted write to complete */
+	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
+		cpu_relax();
+	/* reloaded WCRR from WLDR */
+}
+
+static void omap_wdt_enable(struct omap_wdt_dev *wdev)
+{
+	void __iomem *base = wdev->base;
+
+	/* Sequence to enable the watchdog */
+	__raw_writel(0xBBBB, base + OMAP_WATCHDOG_SPR);
+	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
+		cpu_relax();
+
+	__raw_writel(0x4444, base + OMAP_WATCHDOG_SPR);
+	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
+		cpu_relax();
+}
+
+static void omap_wdt_disable(struct omap_wdt_dev *wdev)
+{
+	void __iomem *base = wdev->base;
+
+	/* sequence required to disable watchdog */
+	__raw_writel(0xAAAA, base + OMAP_WATCHDOG_SPR);	/* TIMER_MODE */
+	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
+		cpu_relax();
+
+	__raw_writel(0x5555, base + OMAP_WATCHDOG_SPR);	/* TIMER_MODE */
+	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
+		cpu_relax();
+}
+
+static void omap_wdt_adjust_timeout(unsigned new_timeout)
+{
+	if (new_timeout < TIMER_MARGIN_MIN)
+		new_timeout = TIMER_MARGIN_DEFAULT;
+	if (new_timeout > TIMER_MARGIN_MAX)
+		new_timeout = TIMER_MARGIN_MAX;
+	timer_margin = new_timeout;
+}
+
+static void omap_wdt_set_timeout(struct omap_wdt_dev *wdev)
+{
+	u32 pre_margin = GET_WLDR_VAL(timer_margin);
+	void __iomem *base = wdev->base;
+
+	/* just count up at 32 KHz */
+	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
+		cpu_relax();
+
+	__raw_writel(pre_margin, base + OMAP_WATCHDOG_LDR);
+	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
+		cpu_relax();
+}
+
+/*
+ *	Allow only one task to hold it open
+ */
+static int omap_wdt_open(struct inode *inode, struct file *file)
+{
+	struct omap_wdt_dev *wdev = platform_get_drvdata(omap_wdt_dev);
+	void __iomem *base = wdev->base;
+
+	if (test_and_set_bit(1, (unsigned long *)&(wdev->omap_wdt_users)))
+		return -EBUSY;
+
+	if (cpu_is_omap16xx())
+		clk_enable(wdev->armwdt_ck);	/* Enable the clock */
+
+	if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
+		clk_enable(wdev->mpu_wdt_ick);    /* Enable the interface clock */
+		clk_enable(wdev->mpu_wdt_fck);    /* Enable the functional clock */
+	}
+
+	/* initialize prescaler */
+	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
+		cpu_relax();
+
+	__raw_writel((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL);
+	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
+		cpu_relax();
+
+	file->private_data = (void *) wdev;
+
+	omap_wdt_set_timeout(wdev);
+	omap_wdt_enable(wdev);
+
+	return nonseekable_open(inode, file);
+}
+
+static int omap_wdt_release(struct inode *inode, struct file *file)
+{
+	struct omap_wdt_dev *wdev = file->private_data;
+
+	/*
+	 *      Shut off the timer unless NOWAYOUT is defined.
+	 */
+#ifndef CONFIG_WATCHDOG_NOWAYOUT
+
+	omap_wdt_disable(wdev);
+
+	if (cpu_is_omap16xx())
+		clk_disable(wdev->armwdt_ck);	/* Disable the clock */
+
+	if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
+		clk_disable(wdev->mpu_wdt_ick);	/* Disable the clock */
+		clk_disable(wdev->mpu_wdt_fck);	/* Disable the clock */
+	}
+#else
+	printk(KERN_CRIT "omap_wdt: Unexpected close, not stopping!\n");
+#endif
+	wdev->omap_wdt_users = 0;
+
+	return 0;
+}
+
+static ssize_t omap_wdt_write(struct file *file, const char __user *data,
+		size_t len, loff_t *ppos)
+{
+	struct omap_wdt_dev *wdev = file->private_data;
+
+	/* Refresh LOAD_TIME. */
+	if (len) {
+		spin_lock(&wdt_lock);
+		omap_wdt_ping(wdev);
+		spin_unlock(&wdt_lock);
+	}
+	return len;
+}
+
+static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	struct omap_wdt_dev *wdev;
+	int new_margin;
+	static const struct watchdog_info ident = {
+		.identity = "OMAP Watchdog",
+		.options = WDIOF_SETTIMEOUT,
+		.firmware_version = 0,
+	};
+
+	wdev = file->private_data;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user((struct watchdog_info __user *)arg, &ident,
+				sizeof(ident));
+	case WDIOC_GETSTATUS:
+		return put_user(0, (int __user *)arg);
+	case WDIOC_GETBOOTSTATUS:
+		if (cpu_is_omap16xx())
+			return put_user(__raw_readw(ARM_SYSST),
+					(int __user *)arg);
+		if (cpu_is_omap24xx())
+			return put_user(omap_prcm_get_reset_sources(),
+					(int __user *)arg);
+	case WDIOC_KEEPALIVE:
+		spin_lock(&wdt_lock);
+		omap_wdt_ping(wdev);
+		spin_unlock(&wdt_lock);
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, (int __user *)arg))
+			return -EFAULT;
+		omap_wdt_adjust_timeout(new_margin);
+
+		spin_lock(&wdt_lock);
+		omap_wdt_disable(wdev);
+		omap_wdt_set_timeout(wdev);
+		omap_wdt_enable(wdev);
+
+		omap_wdt_ping(wdev);
+		spin_unlock(&wdt_lock);
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timer_margin, (int __user *)arg);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations omap_wdt_fops = {
+	.owner = THIS_MODULE,
+	.write = omap_wdt_write,
+	.unlocked_ioctl = omap_wdt_ioctl,
+	.open = omap_wdt_open,
+	.release = omap_wdt_release,
+};
+
+static int __init omap_wdt_probe(struct platform_device *pdev)
+{
+	struct resource *res, *mem;
+	struct omap_wdt_dev *wdev;
+	int ret;
+
+	/* reserve static register mappings */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		ret = -ENOENT;
+		goto err_get_resource;
+	}
+
+	if (omap_wdt_dev) {
+		ret = -EBUSY;
+		goto err_busy;
+	}
+
+	mem = request_mem_region(res->start, res->end - res->start + 1,
+				 pdev->name);
+	if (!mem) {
+		ret = -EBUSY;
+		goto err_busy;
+	}
+
+	wdev = kzalloc(sizeof(struct omap_wdt_dev), GFP_KERNEL);
+	if (!wdev) {
+		ret = -ENOMEM;
+		goto err_kzalloc;
+	}
+
+	wdev->omap_wdt_users = 0;
+	wdev->mem = mem;
+
+	if (cpu_is_omap16xx()) {
+		wdev->armwdt_ck = clk_get(&pdev->dev, "armwdt_ck");
+		if (IS_ERR(wdev->armwdt_ck)) {
+			ret = PTR_ERR(wdev->armwdt_ck);
+			wdev->armwdt_ck = NULL;
+			goto err_clk;
+		}
+	}
+
+	if (cpu_is_omap24xx()) {
+		wdev->mpu_wdt_ick = clk_get(&pdev->dev, "mpu_wdt_ick");
+		if (IS_ERR(wdev->mpu_wdt_ick)) {
+			ret = PTR_ERR(wdev->mpu_wdt_ick);
+			wdev->mpu_wdt_ick = NULL;
+			goto err_clk;
+		}
+		wdev->mpu_wdt_fck = clk_get(&pdev->dev, "mpu_wdt_fck");
+		if (IS_ERR(wdev->mpu_wdt_fck)) {
+			ret = PTR_ERR(wdev->mpu_wdt_fck);
+			wdev->mpu_wdt_fck = NULL;
+			goto err_clk;
+		}
+	}
+
+	if (cpu_is_omap34xx()) {
+		wdev->mpu_wdt_ick = clk_get(&pdev->dev, "wdt2_ick");
+		if (IS_ERR(wdev->mpu_wdt_ick)) {
+			ret = PTR_ERR(wdev->mpu_wdt_ick);
+			wdev->mpu_wdt_ick = NULL;
+			goto err_clk;
+		}
+		wdev->mpu_wdt_fck = clk_get(&pdev->dev, "wdt2_fck");
+		if (IS_ERR(wdev->mpu_wdt_fck)) {
+			ret = PTR_ERR(wdev->mpu_wdt_fck);
+			wdev->mpu_wdt_fck = NULL;
+			goto err_clk;
+		}
+	}
+	wdev->base = ioremap(res->start, res->end - res->start + 1);
+	if (!wdev->base) {
+		ret = -ENOMEM;
+		goto err_ioremap;
+	}
+
+	platform_set_drvdata(pdev, wdev);
+
+	omap_wdt_disable(wdev);
+	omap_wdt_adjust_timeout(timer_margin);
+
+	wdev->omap_wdt_miscdev.parent = &pdev->dev;
+	wdev->omap_wdt_miscdev.minor = WATCHDOG_MINOR;
+	wdev->omap_wdt_miscdev.name = "watchdog";
+	wdev->omap_wdt_miscdev.fops = &omap_wdt_fops;
+
+	ret = misc_register(&(wdev->omap_wdt_miscdev));
+	if (ret)
+		goto err_misc;
+
+	pr_info("OMAP Watchdog Timer Rev 0x%02x: initial timeout %d sec\n",
+		__raw_readl(wdev->base + OMAP_WATCHDOG_REV) & 0xFF,
+		timer_margin);
+
+	/* autogate OCP interface clock */
+	__raw_writel(0x01, wdev->base + OMAP_WATCHDOG_SYS_CONFIG);
+
+	omap_wdt_dev = pdev;
+
+	return 0;
+
+err_misc:
+	platform_set_drvdata(pdev, NULL);
+	iounmap(wdev->base);
+
+err_ioremap:
+	wdev->base = NULL;
+
+err_clk:
+	if (wdev->armwdt_ck)
+		clk_put(wdev->armwdt_ck);
+	if (wdev->mpu_wdt_ick)
+		clk_put(wdev->mpu_wdt_ick);
+	if (wdev->mpu_wdt_fck)
+		clk_put(wdev->mpu_wdt_fck);
+	kfree(wdev);
+
+err_kzalloc:
+	release_mem_region(res->start, res->end - res->start + 1);
+
+err_busy:
+err_get_resource:
+
+	return ret;
+}
+
+static void omap_wdt_shutdown(struct platform_device *pdev)
+{
+	struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
+
+	if (wdev->omap_wdt_users)
+		omap_wdt_disable(wdev);
+}
+
+static int omap_wdt_remove(struct platform_device *pdev)
+{
+	struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	if (!res)
+		return -ENOENT;
+
+	misc_deregister(&(wdev->omap_wdt_miscdev));
+	release_mem_region(res->start, res->end - res->start + 1);
+	platform_set_drvdata(pdev, NULL);
+
+	if (wdev->armwdt_ck) {
+		clk_put(wdev->armwdt_ck);
+		wdev->armwdt_ck = NULL;
+	}
+
+	if (wdev->mpu_wdt_ick) {
+		clk_put(wdev->mpu_wdt_ick);
+		wdev->mpu_wdt_ick = NULL;
+	}
+
+	if (wdev->mpu_wdt_fck) {
+		clk_put(wdev->mpu_wdt_fck);
+		wdev->mpu_wdt_fck = NULL;
+	}
+	iounmap(wdev->base);
+
+	kfree(wdev);
+	omap_wdt_dev = NULL;
+
+	return 0;
+}
+
+#ifdef	CONFIG_PM
+
+/* REVISIT ... not clear this is the best way to handle system suspend; and
+ * it's very inappropriate for selective device suspend (e.g. suspending this
+ * through sysfs rather than by stopping the watchdog daemon).  Also, this
+ * may not play well enough with NOWAYOUT...
+ */
+
+static int omap_wdt_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
+
+	if (wdev->omap_wdt_users)
+		omap_wdt_disable(wdev);
+
+	return 0;
+}
+
+static int omap_wdt_resume(struct platform_device *pdev)
+{
+	struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
+
+	if (wdev->omap_wdt_users) {
+		omap_wdt_enable(wdev);
+		omap_wdt_ping(wdev);
+	}
+
+	return 0;
+}
+
+#else
+#define	omap_wdt_suspend	NULL
+#define	omap_wdt_resume		NULL
+#endif
+
+static struct platform_driver omap_wdt_driver = {
+	.probe		= omap_wdt_probe,
+	.remove		= omap_wdt_remove,
+	.shutdown	= omap_wdt_shutdown,
+	.suspend	= omap_wdt_suspend,
+	.resume		= omap_wdt_resume,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "omap_wdt",
+	},
+};
+
+static int __init omap_wdt_init(void)
+{
+	spin_lock_init(&wdt_lock);
+	return platform_driver_register(&omap_wdt_driver);
+}
+
+static void __exit omap_wdt_exit(void)
+{
+	platform_driver_unregister(&omap_wdt_driver);
+}
+
+module_init(omap_wdt_init);
+module_exit(omap_wdt_exit);
+
+MODULE_AUTHOR("George G. Davis");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:omap_wdt");
diff --git a/drivers/watchdog/omap_wdt.h b/drivers/watchdog/omap_wdt.h
new file mode 100644
index 0000000..fc02ec6
--- /dev/null
+++ b/drivers/watchdog/omap_wdt.h
@@ -0,0 +1,54 @@
+/*
+ *  linux/drivers/char/watchdog/omap_wdt.h
+ *
+ *  BRIEF MODULE DESCRIPTION
+ *      OMAP Watchdog timer register definitions
+ *
+ *  Copyright (C) 2004 Texas Instruments.
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _OMAP_WATCHDOG_H
+#define _OMAP_WATCHDOG_H
+
+#define OMAP_WATCHDOG_REV		(0x00)
+#define OMAP_WATCHDOG_SYS_CONFIG	(0x10)
+#define OMAP_WATCHDOG_STATUS		(0x14)
+#define OMAP_WATCHDOG_CNTRL		(0x24)
+#define OMAP_WATCHDOG_CRR		(0x28)
+#define OMAP_WATCHDOG_LDR		(0x2c)
+#define OMAP_WATCHDOG_TGR		(0x30)
+#define OMAP_WATCHDOG_WPS		(0x34)
+#define OMAP_WATCHDOG_SPR		(0x48)
+
+/* Using the prescaler, the OMAP watchdog could go for many
+ * months before firing.  These limits work without scaling,
+ * with the 60 second default assumed by most tools and docs.
+ */
+#define TIMER_MARGIN_MAX    	(24 * 60 * 60)	/* 1 day */
+#define TIMER_MARGIN_DEFAULT	60	/* 60 secs */
+#define TIMER_MARGIN_MIN	1
+
+#define PTV			0	/* prescale */
+#define GET_WLDR_VAL(secs)	(0xffffffff - ((secs) * (32768/(1<<PTV))) + 1)
+
+#endif				/* _OMAP_WATCHDOG_H */
diff --git a/drivers/watchdog/orion5x_wdt.c b/drivers/watchdog/orion5x_wdt.c
new file mode 100644
index 0000000..14a339f
--- /dev/null
+++ b/drivers/watchdog/orion5x_wdt.c
@@ -0,0 +1,245 @@
+/*
+ * drivers/watchdog/orion5x_wdt.c
+ *
+ * Watchdog driver for Orion5x processors
+ *
+ * Author: Sylver Bruneau <sylver.bruneau@googlemail.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+/*
+ * Watchdog timer block registers.
+ */
+#define TIMER_CTRL		(TIMER_VIRT_BASE + 0x0000)
+#define  WDT_EN			0x0010
+#define WDT_VAL			(TIMER_VIRT_BASE + 0x0024)
+
+#define WDT_MAX_DURATION	(0xffffffff / ORION5X_TCLK)
+#define WDT_IN_USE		0
+#define WDT_OK_TO_CLOSE		1
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+static int heartbeat =  WDT_MAX_DURATION;	/* (seconds) */
+static unsigned long wdt_status;
+static spinlock_t wdt_lock;
+
+static void wdt_enable(void)
+{
+	u32 reg;
+
+	spin_lock(&wdt_lock);
+
+	/* Set watchdog duration */
+	writel(ORION5X_TCLK * heartbeat, WDT_VAL);
+
+	/* Clear watchdog timer interrupt */
+	reg = readl(BRIDGE_CAUSE);
+	reg &= ~WDT_INT_REQ;
+	writel(reg, BRIDGE_CAUSE);
+
+	/* Enable watchdog timer */
+	reg = readl(TIMER_CTRL);
+	reg |= WDT_EN;
+	writel(reg, TIMER_CTRL);
+
+	/* Enable reset on watchdog */
+	reg = readl(CPU_RESET_MASK);
+	reg |= WDT_RESET;
+	writel(reg, CPU_RESET_MASK);
+
+	spin_unlock(&wdt_lock);
+}
+
+static void wdt_disable(void)
+{
+	u32 reg;
+
+	spin_lock(&wdt_lock);
+
+	/* Disable reset on watchdog */
+	reg = readl(CPU_RESET_MASK);
+	reg &= ~WDT_RESET;
+	writel(reg, CPU_RESET_MASK);
+
+	/* Disable watchdog timer */
+	reg = readl(TIMER_CTRL);
+	reg &= ~WDT_EN;
+	writel(reg, TIMER_CTRL);
+
+	spin_unlock(&wdt_lock);
+}
+
+static int orion5x_wdt_get_timeleft(int *time_left)
+{
+	spin_lock(&wdt_lock);
+	*time_left = readl(WDT_VAL) / ORION5X_TCLK;
+	spin_unlock(&wdt_lock);
+	return 0;
+}
+
+static int orion5x_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+	wdt_enable();
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t orion5x_wdt_write(struct file *file, const char *data,
+					size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			}
+		}
+		wdt_enable();
+	}
+	return len;
+}
+
+static struct watchdog_info ident = {
+	.options	= WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
+			  WDIOF_KEEPALIVEPING,
+	.identity	= "Orion5x Watchdog",
+};
+
+
+static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
+{
+	int ret = -ENOTTY;
+	int time;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user((struct watchdog_info *)arg, &ident,
+				   sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, (int *)arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_enable();
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, (int *)arg);
+		if (ret)
+			break;
+
+		if (time <= 0 || time > WDT_MAX_DURATION) {
+			ret = -EINVAL;
+			break;
+		}
+		heartbeat = time;
+		wdt_enable();
+		/* Fall through */
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(heartbeat, (int *)arg);
+		break;
+
+	case WDIOC_GETTIMELEFT:
+		if (orion5x_wdt_get_timeleft(&time)) {
+			ret = -EINVAL;
+			break;
+		}
+		ret = put_user(time, (int *)arg);
+		break;
+	}
+	return ret;
+}
+
+static int orion5x_wdt_release(struct inode *inode, struct file *file)
+{
+	if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+		wdt_disable();
+	else
+		printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
+					"timer will not stop\n");
+	clear_bit(WDT_IN_USE, &wdt_status);
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	return 0;
+}
+
+
+static const struct file_operations orion5x_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= orion5x_wdt_write,
+	.unlocked_ioctl	= orion5x_wdt_ioctl,
+	.open		= orion5x_wdt_open,
+	.release	= orion5x_wdt_release,
+};
+
+static struct miscdevice orion5x_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &orion5x_wdt_fops,
+};
+
+static int __init orion5x_wdt_init(void)
+{
+	int ret;
+
+	spin_lock_init(&wdt_lock);
+
+	ret = misc_register(&orion5x_wdt_miscdev);
+	if (ret == 0)
+		printk("Orion5x Watchdog Timer: heartbeat %d sec\n",
+								heartbeat);
+
+	return ret;
+}
+
+static void __exit orion5x_wdt_exit(void)
+{
+	misc_deregister(&orion5x_wdt_miscdev);
+}
+
+module_init(orion5x_wdt_init);
+module_exit(orion5x_wdt_exit);
+
+MODULE_AUTHOR("Sylver Bruneau <sylver.bruneau@googlemail.com>");
+MODULE_DESCRIPTION("Orion5x Processor Watchdog");
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default is "
+					__MODULE_STRING(WDT_MAX_DURATION) ")");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
new file mode 100644
index 0000000..484c215
--- /dev/null
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -0,0 +1,595 @@
+/*
+ *      NS pc87413-wdt Watchdog Timer driver for Linux 2.6.x.x
+ *
+ *      This code is based on wdt.c with original copyright.
+ *
+ *      (C) Copyright 2006 Sven Anders, <anders@anduras.de>
+ *                     and Marcus Junker, <junker@anduras.de>
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      Neither Sven Anders, Marcus Junker nor ANDURAS AG
+ *      admit liability nor provide warranty for any of this software.
+ *      This material is provided "AS-IS" and at no charge.
+ *
+ *      Release 1.1
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/notifier.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+/* #define DEBUG 1 */
+
+#define DEFAULT_TIMEOUT     1		/* 1 minute */
+#define MAX_TIMEOUT         255
+
+#define VERSION             "1.1"
+#define MODNAME             "pc87413 WDT"
+#define PFX                 MODNAME ": "
+#define DPFX                MODNAME " - DEBUG: "
+
+#define WDT_INDEX_IO_PORT   (io+0)	/* I/O port base (index register) */
+#define WDT_DATA_IO_PORT    (WDT_INDEX_IO_PORT+1)
+#define SWC_LDN             0x04
+#define SIOCFG2             0x22	/* Serial IO register */
+#define WDCTL               0x10	/* Watchdog-Timer-Controll-Register */
+#define WDTO                0x11	/* Watchdog timeout register */
+#define WDCFG               0x12	/* Watchdog config register */
+
+static int io = 0x2E;			/* Address used on Portwell Boards */
+
+static int timeout = DEFAULT_TIMEOUT;	/* timeout value */
+static unsigned long timer_enabled;	/* is the timer enabled? */
+
+static char expect_close;		/* is the close expected? */
+
+static DEFINE_SPINLOCK(io_lock);	/* to guard us from io races */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+/* -- Low level function ----------------------------------------*/
+
+/* Select pins for Watchdog output */
+
+static inline void pc87413_select_wdt_out(void)
+{
+	unsigned int cr_data = 0;
+
+	/* Step 1: Select multiple pin,pin55,as WDT output */
+
+	outb_p(SIOCFG2, WDT_INDEX_IO_PORT);
+
+	cr_data = inb(WDT_DATA_IO_PORT);
+
+	cr_data |= 0x80; /* Set Bit7 to 1*/
+	outb_p(SIOCFG2, WDT_INDEX_IO_PORT);
+
+	outb_p(cr_data, WDT_DATA_IO_PORT);
+
+#ifdef DEBUG
+	printk(KERN_INFO DPFX
+		"Select multiple pin,pin55,as WDT output: Bit7 to 1: %d\n",
+								cr_data);
+#endif
+}
+
+/* Enable SWC functions */
+
+static inline void pc87413_enable_swc(void)
+{
+	unsigned int cr_data = 0;
+
+	/* Step 2: Enable SWC functions */
+
+	outb_p(0x07, WDT_INDEX_IO_PORT);	/* Point SWC_LDN (LDN=4) */
+	outb_p(SWC_LDN, WDT_DATA_IO_PORT);
+
+	outb_p(0x30, WDT_INDEX_IO_PORT);	/* Read Index 0x30 First */
+	cr_data = inb(WDT_DATA_IO_PORT);
+	cr_data |= 0x01;			/* Set Bit0 to 1 */
+	outb_p(0x30, WDT_INDEX_IO_PORT);
+	outb_p(cr_data, WDT_DATA_IO_PORT);	/* Index0x30_bit0P1 */
+
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "pc87413 - Enable SWC functions\n");
+#endif
+}
+
+/* Read SWC I/O base address */
+
+static inline unsigned int pc87413_get_swc_base(void)
+{
+	unsigned int  swc_base_addr = 0;
+	unsigned char addr_l, addr_h = 0;
+
+	/* Step 3: Read SWC I/O Base Address */
+
+	outb_p(0x60, WDT_INDEX_IO_PORT);	/* Read Index 0x60 */
+	addr_h = inb(WDT_DATA_IO_PORT);
+
+	outb_p(0x61, WDT_INDEX_IO_PORT);	/* Read Index 0x61 */
+
+	addr_l = inb(WDT_DATA_IO_PORT);
+
+	swc_base_addr = (addr_h << 8) + addr_l;
+#ifdef DEBUG
+	printk(KERN_INFO DPFX
+		"Read SWC I/O Base Address: low %d, high %d, res %d\n",
+						addr_l, addr_h, swc_base_addr);
+#endif
+	return swc_base_addr;
+}
+
+/* Select Bank 3 of SWC */
+
+static inline void pc87413_swc_bank3(unsigned int swc_base_addr)
+{
+	/* Step 4: Select Bank3 of SWC */
+	outb_p(inb(swc_base_addr + 0x0f) | 0x03, swc_base_addr + 0x0f);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "Select Bank3 of SWC\n");
+#endif
+}
+
+/* Set watchdog timeout to x minutes */
+
+static inline void pc87413_programm_wdto(unsigned int swc_base_addr,
+					 char pc87413_time)
+{
+	/* Step 5: Programm WDTO, Twd. */
+	outb_p(pc87413_time, swc_base_addr + WDTO);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "Set WDTO to %d minutes\n", pc87413_time);
+#endif
+}
+
+/* Enable WDEN */
+
+static inline void pc87413_enable_wden(unsigned int swc_base_addr)
+{
+	/* Step 6: Enable WDEN */
+	outb_p(inb(swc_base_addr + WDCTL) | 0x01, swc_base_addr + WDCTL);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "Enable WDEN\n");
+#endif
+}
+
+/* Enable SW_WD_TREN */
+static inline void pc87413_enable_sw_wd_tren(unsigned int swc_base_addr)
+{
+	/* Enable SW_WD_TREN */
+	outb_p(inb(swc_base_addr + WDCFG) | 0x80, swc_base_addr + WDCFG);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "Enable SW_WD_TREN\n");
+#endif
+}
+
+/* Disable SW_WD_TREN */
+
+static inline void pc87413_disable_sw_wd_tren(unsigned int swc_base_addr)
+{
+	/* Disable SW_WD_TREN */
+	outb_p(inb(swc_base_addr + WDCFG) & 0x7f, swc_base_addr + WDCFG);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "pc87413 - Disable SW_WD_TREN\n");
+#endif
+}
+
+/* Enable SW_WD_TRG */
+
+static inline void pc87413_enable_sw_wd_trg(unsigned int swc_base_addr)
+{
+	/* Enable SW_WD_TRG */
+	outb_p(inb(swc_base_addr + WDCTL) | 0x80, swc_base_addr + WDCTL);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "pc87413 - Enable SW_WD_TRG\n");
+#endif
+}
+
+/* Disable SW_WD_TRG */
+
+static inline void pc87413_disable_sw_wd_trg(unsigned int swc_base_addr)
+{
+	/* Disable SW_WD_TRG */
+	outb_p(inb(swc_base_addr + WDCTL) & 0x7f, swc_base_addr + WDCTL);
+#ifdef DEBUG
+	printk(KERN_INFO DPFX "Disable SW_WD_TRG\n");
+#endif
+}
+
+/* -- Higher level functions ------------------------------------*/
+
+/* Enable the watchdog */
+
+static void pc87413_enable(void)
+{
+	unsigned int swc_base_addr;
+
+	spin_lock(&io_lock);
+
+	pc87413_select_wdt_out();
+	pc87413_enable_swc();
+	swc_base_addr = pc87413_get_swc_base();
+	pc87413_swc_bank3(swc_base_addr);
+	pc87413_programm_wdto(swc_base_addr, timeout);
+	pc87413_enable_wden(swc_base_addr);
+	pc87413_enable_sw_wd_tren(swc_base_addr);
+	pc87413_enable_sw_wd_trg(swc_base_addr);
+
+	spin_unlock(&io_lock);
+}
+
+/* Disable the watchdog */
+
+static void pc87413_disable(void)
+{
+	unsigned int swc_base_addr;
+
+	spin_lock(&io_lock);
+
+	pc87413_select_wdt_out();
+	pc87413_enable_swc();
+	swc_base_addr = pc87413_get_swc_base();
+	pc87413_swc_bank3(swc_base_addr);
+	pc87413_disable_sw_wd_tren(swc_base_addr);
+	pc87413_disable_sw_wd_trg(swc_base_addr);
+	pc87413_programm_wdto(swc_base_addr, 0);
+
+	spin_unlock(&io_lock);
+}
+
+/* Refresh the watchdog */
+
+static void pc87413_refresh(void)
+{
+	unsigned int swc_base_addr;
+
+	spin_lock(&io_lock);
+
+	pc87413_select_wdt_out();
+	pc87413_enable_swc();
+	swc_base_addr = pc87413_get_swc_base();
+	pc87413_swc_bank3(swc_base_addr);
+	pc87413_disable_sw_wd_tren(swc_base_addr);
+	pc87413_disable_sw_wd_trg(swc_base_addr);
+	pc87413_programm_wdto(swc_base_addr, timeout);
+	pc87413_enable_wden(swc_base_addr);
+	pc87413_enable_sw_wd_tren(swc_base_addr);
+	pc87413_enable_sw_wd_trg(swc_base_addr);
+
+	spin_unlock(&io_lock);
+}
+
+/* -- File operations -------------------------------------------*/
+
+/**
+ *	pc87413_open:
+ *	@inode: inode of device
+ *	@file: file handle to device
+ *
+ */
+
+static int pc87413_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+
+	if (test_and_set_bit(0, &timer_enabled))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Reload and activate timer */
+	pc87413_refresh();
+
+	printk(KERN_INFO MODNAME
+		"Watchdog enabled. Timeout set to %d minute(s).\n", timeout);
+
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	pc87413_release:
+ *	@inode: inode to board
+ *	@file: file handle to board
+ *
+ *	The watchdog has a configurable API. There is a religious dispute
+ *	between people who want their watchdog to be able to shut down and
+ *	those who want to be sure if the watchdog manager dies the machine
+ *	reboots. In the former case we disable the counters, in the latter
+ *	case you have to open it again very soon.
+ */
+
+static int pc87413_release(struct inode *inode, struct file *file)
+{
+	/* Shut off the timer. */
+
+	if (expect_close == 42) {
+		pc87413_disable();
+		printk(KERN_INFO MODNAME
+				"Watchdog disabled, sleeping again...\n");
+	} else {
+		printk(KERN_CRIT MODNAME
+				"Unexpected close, not stopping watchdog!\n");
+		pc87413_refresh();
+	}
+	clear_bit(0, &timer_enabled);
+	expect_close = 0;
+	return 0;
+}
+
+/**
+ *	pc87413_status:
+ *
+ *      return, if the watchdog is enabled (timeout is set...)
+ */
+
+
+static int pc87413_status(void)
+{
+	  return 0; /* currently not supported */
+}
+
+/**
+ *	pc87413_write:
+ *	@file: file handle to the watchdog
+ *	@data: data buffer to write
+ *	@len: length in bytes
+ *	@ppos: pointer to the position to write. No seeks allowed
+ *
+ *	A write to a watchdog device is defined as a keepalive signal. Any
+ *	write of data will do, as we we don't define content meaning.
+ */
+
+static ssize_t pc87413_write(struct file *file, const char __user *data,
+			     size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* reset expect flag */
+			expect_close = 0;
+
+			/* scan to see whether or not we got the
+			   magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		pc87413_refresh();
+	}
+	return len;
+}
+
+/**
+ *	pc87413_ioctl:
+ *	@file: file handle to the device
+ *	@cmd: watchdog command
+ *	@arg: argument pointer
+ *
+ *	The watchdog API defines a common set of functions for all watchdogs
+ *	according to their available features. We only actually usefully support
+ *	querying capabilities and current status.
+ */
+
+static long pc87413_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	int new_timeout;
+
+	union {
+		struct watchdog_info __user *ident;
+		int __user *i;
+	} uarg;
+
+	static struct watchdog_info ident = {
+		.options          = WDIOF_KEEPALIVEPING |
+				    WDIOF_SETTIMEOUT |
+				    WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity         = "PC87413(HF/F) watchdog",
+	};
+
+	uarg.i = (int __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(uarg.ident, &ident,
+					sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+		return put_user(pc87413_status(), uarg.i);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, uarg.i);
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+		if (get_user(options, uarg.i))
+			return -EFAULT;
+		if (options & WDIOS_DISABLECARD) {
+			pc87413_disable();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			pc87413_enable();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		pc87413_refresh();
+#ifdef DEBUG
+		printk(KERN_INFO DPFX "keepalive\n");
+#endif
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, uarg.i))
+			return -EFAULT;
+		/* the API states this is given in secs */
+		new_timeout /= 60;
+		if (new_timeout < 0 || new_timeout > MAX_TIMEOUT)
+			return -EINVAL;
+		timeout = new_timeout;
+		pc87413_refresh();
+		/* fall through and return the new timeout... */
+	case WDIOC_GETTIMEOUT:
+		new_timeout = timeout * 60;
+		return put_user(new_timeout, uarg.i);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/* -- Notifier funtions -----------------------------------------*/
+
+/**
+ *	notify_sys:
+ *	@this: our notifier block
+ *	@code: the event being reported
+ *	@unused: unused
+ *
+ *	Our notifier is called on system shutdowns. We want to turn the card
+ *	off at reboot otherwise the machine will reboot again during memory
+ *	test or worse yet during the following fsck. This would suck, in fact
+ *	trust me - if it happens it does suck.
+ */
+
+static int pc87413_notify_sys(struct notifier_block *this,
+			      unsigned long code,
+			      void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		/* Turn the card off */
+		pc87413_disable();
+	return NOTIFY_DONE;
+}
+
+/* -- Module's structures ---------------------------------------*/
+
+static const struct file_operations pc87413_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= pc87413_write,
+	.unlocked_ioctl	= pc87413_ioctl,
+	.open		= pc87413_open,
+	.release	= pc87413_release,
+};
+
+static struct notifier_block pc87413_notifier = {
+	.notifier_call  = pc87413_notify_sys,
+};
+
+static struct miscdevice pc87413_miscdev = {
+	.minor          = WATCHDOG_MINOR,
+	.name           = "watchdog",
+	.fops           = &pc87413_fops,
+};
+
+/* -- Module init functions -------------------------------------*/
+
+/**
+ * 	pc87413_init: module's "constructor"
+ *
+ *	Set up the WDT watchdog board. All we have to do is grab the
+ *	resources we require and bitch if anyone beat us to them.
+ *	The open() function will actually kick the board off.
+ */
+
+static int __init pc87413_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO PFX "Version " VERSION " at io 0x%X\n",
+							WDT_INDEX_IO_PORT);
+
+	/* request_region(io, 2, "pc87413"); */
+
+	ret = register_reboot_notifier(&pc87413_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+	}
+
+	ret = misc_register(&pc87413_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+			WATCHDOG_MINOR, ret);
+		unregister_reboot_notifier(&pc87413_notifier);
+		return ret;
+	}
+	printk(KERN_INFO PFX "initialized. timeout=%d min \n", timeout);
+	pc87413_enable();
+	return 0;
+}
+
+/**
+ *	pc87413_exit: module's "destructor"
+ *
+ *	Unload the watchdog. You cannot do this with any file handles open.
+ *	If your watchdog is set to continue ticking on close and you unload
+ *	it, well it keeps ticking. We won't get the interrupt but the board
+ *	will not touch PC memory so all is fine. You just have to load a new
+ *	module in 60 seconds or reboot.
+ */
+
+static void __exit pc87413_exit(void)
+{
+	/* Stop the timer before we leave */
+	if (!nowayout) {
+		pc87413_disable();
+		printk(KERN_INFO MODNAME "Watchdog disabled.\n");
+	}
+
+	misc_deregister(&pc87413_miscdev);
+	unregister_reboot_notifier(&pc87413_notifier);
+	/* release_region(io, 2); */
+
+	printk(KERN_INFO MODNAME " watchdog component driver removed.\n");
+}
+
+module_init(pc87413_init);
+module_exit(pc87413_exit);
+
+MODULE_AUTHOR("Sven Anders <anders@anduras.de>, Marcus Junker <junker@anduras.de>,");
+MODULE_DESCRIPTION("PC87413 WDT driver");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, MODNAME " I/O port (default: " __MODULE_STRING(io) ").");
+
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Watchdog timeout in minutes (default="
+				__MODULE_STRING(timeout) ").");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c
new file mode 100644
index 0000000..9e1331a
--- /dev/null
+++ b/drivers/watchdog/pcwd.c
@@ -0,0 +1,1034 @@
+/*
+ * PC Watchdog Driver
+ * by Ken Hollis (khollis@bitgate.com)
+ *
+ * Permission granted from Simon Machell (smachell@berkprod.com)
+ * Written for the Linux Kernel, and GPLed by Ken Hollis
+ *
+ * 960107	Added request_region routines, modulized the whole thing.
+ * 960108	Fixed end-of-file pointer (Thanks to Dan Hollis), added
+ *		WD_TIMEOUT define.
+ * 960216	Added eof marker on the file, and changed verbose messages.
+ * 960716	Made functional and cosmetic changes to the source for
+ *		inclusion in Linux 2.0.x kernels, thanks to Alan Cox.
+ * 960717	Removed read/seek routines, replaced with ioctl.  Also, added
+ *		check_region command due to Alan's suggestion.
+ * 960821	Made changes to compile in newer 2.0.x kernels.  Added
+ *		"cold reboot sense" entry.
+ * 960825	Made a few changes to code, deleted some defines and made
+ *		typedefs to replace them.  Made heartbeat reset only available
+ *		via ioctl, and removed the write routine.
+ * 960828	Added new items for PC Watchdog Rev.C card.
+ * 960829	Changed around all of the IOCTLs, added new features,
+ *		added watchdog disable/re-enable routines.  Added firmware
+ *		version reporting.  Added read routine for temperature.
+ *		Removed some extra defines, added an autodetect Revision
+ *		routine.
+ * 961006       Revised some documentation, fixed some cosmetic bugs.  Made
+ *              drivers to panic the system if it's overheating at bootup.
+ * 961118	Changed some verbiage on some of the output, tidied up
+ *		code bits, and added compatibility to 2.1.x.
+ * 970912       Enabled board on open and disable on close.
+ * 971107	Took account of recent VFS changes (broke read).
+ * 971210       Disable board on initialisation in case board already ticking.
+ * 971222       Changed open/close for temperature handling
+ *              Michael Meskes <meskes@debian.org>.
+ * 980112       Used minor numbers from include/linux/miscdevice.h
+ * 990403       Clear reset status after reading control status register in
+ *              pcwd_showprevstate(). [Marc Boucher <marc@mbsi.ca>]
+ * 990605	Made changes to code to support Firmware 1.22a, added
+ *		fairly useless proc entry.
+ * 990610	removed said useless proc code for the merge <alan>
+ * 000403	Removed last traces of proc code. <davej>
+ * 011214	Added nowayout module option to override
+ *		CONFIG_WATCHDOG_NOWAYOUT <Matt_Domsch@dell.com>
+ *              Added timeout module option to override default
+ */
+
+/*
+ *	A bells and whistles driver is available from http://www.pcwd.de/
+ *	More info available at http://www.berkprod.com/ or
+ *	http://www.pcwatchdog.com/
+ */
+
+#include <linux/module.h>	/* For module specific items */
+#include <linux/moduleparam.h>	/* For new moduleparam's */
+#include <linux/types.h>	/* For standard types (like size_t) */
+#include <linux/errno.h>	/* For the -ENODEV/... values */
+#include <linux/kernel.h>	/* For printk/panic/... */
+#include <linux/delay.h>	/* For mdelay function */
+#include <linux/timer.h>	/* For timer related operations */
+#include <linux/jiffies.h>	/* For jiffies stuff */
+#include <linux/miscdevice.h>	/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/watchdog.h>	/* For the watchdog specific items */
+#include <linux/reboot.h>	/* For kernel_power_off() */
+#include <linux/init.h>		/* For __init/__exit/... */
+#include <linux/fs.h>		/* For file operations */
+#include <linux/isa.h>		/* For isa devices */
+#include <linux/ioport.h>	/* For io-port access */
+#include <linux/spinlock.h>	/* For spin_lock/spin_unlock/... */
+#include <linux/uaccess.h>	/* For copy_to_user/put_user/... */
+#include <linux/io.h>		/* For inb/outb/... */
+
+/* Module and version information */
+#define WATCHDOG_VERSION "1.20"
+#define WATCHDOG_DATE "18 Feb 2007"
+#define WATCHDOG_DRIVER_NAME "ISA-PC Watchdog"
+#define WATCHDOG_NAME "pcwd"
+#define PFX WATCHDOG_NAME ": "
+#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION " (" WATCHDOG_DATE ")\n"
+#define WD_VER WATCHDOG_VERSION " (" WATCHDOG_DATE ")"
+
+/*
+ * It should be noted that PCWD_REVISION_B was removed because A and B
+ * are essentially the same types of card, with the exception that B
+ * has temperature reporting.  Since I didn't receive a Rev.B card,
+ * the Rev.B card is not supported.  (It's a good thing too, as they
+ * are no longer in production.)
+ */
+#define	PCWD_REVISION_A		1
+#define	PCWD_REVISION_C		2
+
+/*
+ * These are the auto-probe addresses available.
+ *
+ * Revision A only uses ports 0x270 and 0x370.  Revision C introduced 0x350.
+ * Revision A has an address range of 2 addresses, while Revision C has 4.
+ */
+#define PCWD_ISA_NR_CARDS	3
+static int pcwd_ioports[] = { 0x270, 0x350, 0x370, 0x000 };
+
+/*
+ * These are the defines that describe the control status bits for the
+ * PCI-PC Watchdog card.
+*/
+/* Port 1 : Control Status #1 for the PC Watchdog card, revision A. */
+#define WD_WDRST		0x01	/* Previously reset state */
+#define WD_T110			0x02	/* Temperature overheat sense */
+#define WD_HRTBT		0x04	/* Heartbeat sense */
+#define WD_RLY2			0x08	/* External relay triggered */
+#define WD_SRLY2		0x80	/* Software external relay triggered */
+/* Port 1 : Control Status #1 for the PC Watchdog card, revision C. */
+#define WD_REVC_WTRP		0x01	/* Watchdog Trip status */
+#define WD_REVC_HRBT		0x02	/* Watchdog Heartbeat */
+#define WD_REVC_TTRP		0x04	/* Temperature Trip status */
+#define WD_REVC_RL2A		0x08	/* Relay 2 activated by
+							on-board processor */
+#define WD_REVC_RL1A		0x10	/* Relay 1 active */
+#define WD_REVC_R2DS		0x40	/* Relay 2 disable */
+#define WD_REVC_RLY2		0x80	/* Relay 2 activated? */
+/* Port 2 : Control Status #2 */
+#define WD_WDIS			0x10	/* Watchdog Disabled */
+#define WD_ENTP			0x20	/* Watchdog Enable Temperature Trip */
+#define WD_SSEL			0x40	/* Watchdog Switch Select
+							(1:SW1 <-> 0:SW2) */
+#define WD_WCMD			0x80	/* Watchdog Command Mode */
+
+/* max. time we give an ISA watchdog card to process a command */
+/* 500ms for each 4 bit response (according to spec.) */
+#define ISA_COMMAND_TIMEOUT     1000
+
+/* Watchdog's internal commands */
+#define CMD_ISA_IDLE			0x00
+#define CMD_ISA_VERSION_INTEGER		0x01
+#define CMD_ISA_VERSION_TENTH		0x02
+#define CMD_ISA_VERSION_HUNDRETH	0x03
+#define CMD_ISA_VERSION_MINOR		0x04
+#define CMD_ISA_SWITCH_SETTINGS		0x05
+#define CMD_ISA_RESET_PC		0x06
+#define CMD_ISA_ARM_0			0x07
+#define CMD_ISA_ARM_30			0x08
+#define CMD_ISA_ARM_60			0x09
+#define CMD_ISA_DELAY_TIME_2SECS	0x0A
+#define CMD_ISA_DELAY_TIME_4SECS	0x0B
+#define CMD_ISA_DELAY_TIME_8SECS	0x0C
+#define CMD_ISA_RESET_RELAYS		0x0D
+
+/* Watchdog's Dip Switch heartbeat values */
+static const int heartbeat_tbl[] = {
+	20,	/* OFF-OFF-OFF	= 20 Sec  */
+	40,	/* OFF-OFF-ON	= 40 Sec  */
+	60,	/* OFF-ON-OFF	=  1 Min  */
+	300,	/* OFF-ON-ON	=  5 Min  */
+	600,	/* ON-OFF-OFF	= 10 Min  */
+	1800,	/* ON-OFF-ON	= 30 Min  */
+	3600,	/* ON-ON-OFF	=  1 Hour */
+	7200,	/* ON-ON-ON	=  2 hour */
+};
+
+/*
+ * We are using an kernel timer to do the pinging of the watchdog
+ * every ~500ms. We try to set the internal heartbeat of the
+ * watchdog to 2 ms.
+ */
+
+#define WDT_INTERVAL (HZ/2+1)
+
+/* We can only use 1 card due to the /dev/watchdog restriction */
+static int cards_found;
+
+/* internal variables */
+static unsigned long open_allowed;
+static char expect_close;
+static int temp_panic;
+
+/* this is private data for each ISA-PC watchdog card */
+static struct {
+	char fw_ver_str[6];		/* The cards firmware version */
+	int revision;			/* The card's revision */
+	int supports_temp;		/* Whether or not the card has
+						a temperature device */
+	int command_mode;		/* Whether or not the card is in
+						command mode */
+	int boot_status;		/* The card's boot status */
+	int io_addr;			/* The cards I/O address */
+	spinlock_t io_lock;		/* the lock for io operations */
+	struct timer_list timer;	/* The timer that pings the watchdog */
+	unsigned long next_heartbeat;	/* the next_heartbeat for the timer */
+} pcwd_private;
+
+/* module parameters */
+#define QUIET	0	/* Default */
+#define VERBOSE	1	/* Verbose */
+#define DEBUG	2	/* print fancy stuff too */
+static int debug = QUIET;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug,
+		"Debug level: 0=Quiet, 1=Verbose, 2=Debug (default=0)");
+
+/* default heartbeat = delay-time from dip-switches */
+#define WATCHDOG_HEARTBEAT 0
+static int heartbeat = WATCHDOG_HEARTBEAT;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2 <= heartbeat <= 7200 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Internal functions
+ */
+
+static int send_isa_command(int cmd)
+{
+	int i;
+	int control_status;
+	int port0, last_port0;	/* Double read for stabilising */
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "sending following data cmd=0x%02x\n",
+			cmd);
+
+	/* The WCMD bit must be 1 and the command is only 4 bits in size */
+	control_status = (cmd & 0x0F) | WD_WCMD;
+	outb_p(control_status, pcwd_private.io_addr + 2);
+	udelay(ISA_COMMAND_TIMEOUT);
+
+	port0 = inb_p(pcwd_private.io_addr);
+	for (i = 0; i < 25; ++i) {
+		last_port0 = port0;
+		port0 = inb_p(pcwd_private.io_addr);
+
+		if (port0 == last_port0)
+			break;	/* Data is stable */
+
+		udelay(250);
+	}
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n",
+			cmd, port0, last_port0);
+
+	return port0;
+}
+
+static int set_command_mode(void)
+{
+	int i, found = 0, count = 0;
+
+	/* Set the card into command mode */
+	spin_lock(&pcwd_private.io_lock);
+	while ((!found) && (count < 3)) {
+		i = send_isa_command(CMD_ISA_IDLE);
+
+		if (i == 0x00)
+			found = 1;
+		else if (i == 0xF3) {
+			/* Card does not like what we've done to it */
+			outb_p(0x00, pcwd_private.io_addr + 2);
+			udelay(1200);	/* Spec says wait 1ms */
+			outb_p(0x00, pcwd_private.io_addr + 2);
+			udelay(ISA_COMMAND_TIMEOUT);
+		}
+		count++;
+	}
+	spin_unlock(&pcwd_private.io_lock);
+	pcwd_private.command_mode = found;
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "command_mode=%d\n",
+				pcwd_private.command_mode);
+
+	return found;
+}
+
+static void unset_command_mode(void)
+{
+	/* Set the card into normal mode */
+	spin_lock(&pcwd_private.io_lock);
+	outb_p(0x00, pcwd_private.io_addr + 2);
+	udelay(ISA_COMMAND_TIMEOUT);
+	spin_unlock(&pcwd_private.io_lock);
+
+	pcwd_private.command_mode = 0;
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "command_mode=%d\n",
+				pcwd_private.command_mode);
+}
+
+static inline void pcwd_check_temperature_support(void)
+{
+	if (inb(pcwd_private.io_addr) != 0xF0)
+		pcwd_private.supports_temp = 1;
+}
+
+static inline void pcwd_get_firmware(void)
+{
+	int one, ten, hund, minor;
+
+	strcpy(pcwd_private.fw_ver_str, "ERROR");
+
+	if (set_command_mode()) {
+		one = send_isa_command(CMD_ISA_VERSION_INTEGER);
+		ten = send_isa_command(CMD_ISA_VERSION_TENTH);
+		hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH);
+		minor = send_isa_command(CMD_ISA_VERSION_MINOR);
+		sprintf(pcwd_private.fw_ver_str, "%c.%c%c%c",
+					one, ten, hund, minor);
+	}
+	unset_command_mode();
+
+	return;
+}
+
+static inline int pcwd_get_option_switches(void)
+{
+	int option_switches = 0;
+
+	if (set_command_mode()) {
+		/* Get switch settings */
+		option_switches = send_isa_command(CMD_ISA_SWITCH_SETTINGS);
+	}
+
+	unset_command_mode();
+	return option_switches;
+}
+
+static void pcwd_show_card_info(void)
+{
+	int option_switches;
+
+	/* Get some extra info from the hardware (in command/debug/diag mode) */
+	if (pcwd_private.revision == PCWD_REVISION_A)
+		printk(KERN_INFO PFX
+			"ISA-PC Watchdog (REV.A) detected at port 0x%04x\n",
+							pcwd_private.io_addr);
+	else if (pcwd_private.revision == PCWD_REVISION_C) {
+		pcwd_get_firmware();
+		printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
+			pcwd_private.io_addr, pcwd_private.fw_ver_str);
+		option_switches = pcwd_get_option_switches();
+		printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
+			option_switches,
+			((option_switches & 0x10) ? "ON" : "OFF"),
+			((option_switches & 0x08) ? "ON" : "OFF"));
+
+		/* Reprogram internal heartbeat to 2 seconds */
+		if (set_command_mode()) {
+			send_isa_command(CMD_ISA_DELAY_TIME_2SECS);
+			unset_command_mode();
+		}
+	}
+
+	if (pcwd_private.supports_temp)
+		printk(KERN_INFO PFX "Temperature Option Detected\n");
+
+	if (pcwd_private.boot_status & WDIOF_CARDRESET)
+		printk(KERN_INFO PFX "Previous reboot was caused by the card\n");
+
+	if (pcwd_private.boot_status & WDIOF_OVERHEAT) {
+		printk(KERN_EMERG PFX
+			"Card senses a CPU Overheat. Panicking!\n");
+		printk(KERN_EMERG PFX
+			"CPU Overheat\n");
+	}
+
+	if (pcwd_private.boot_status == 0)
+		printk(KERN_INFO PFX
+			"No previous trip detected - Cold boot or reset\n");
+}
+
+static void pcwd_timer_ping(unsigned long data)
+{
+	int wdrst_stat;
+
+	/* If we got a heartbeat pulse within the WDT_INTERVAL
+	 * we agree to ping the WDT */
+	if (time_before(jiffies, pcwd_private.next_heartbeat)) {
+		/* Ping the watchdog */
+		spin_lock(&pcwd_private.io_lock);
+		if (pcwd_private.revision == PCWD_REVISION_A) {
+			/*  Rev A cards are reset by setting the
+			    WD_WDRST bit in register 1 */
+			wdrst_stat = inb_p(pcwd_private.io_addr);
+			wdrst_stat &= 0x0F;
+			wdrst_stat |= WD_WDRST;
+
+			outb_p(wdrst_stat, pcwd_private.io_addr + 1);
+		} else {
+			/* Re-trigger watchdog by writing to port 0 */
+			outb_p(0x00, pcwd_private.io_addr);
+		}
+
+		/* Re-set the timer interval */
+		mod_timer(&pcwd_private.timer, jiffies + WDT_INTERVAL);
+
+		spin_unlock(&pcwd_private.io_lock);
+	} else {
+		printk(KERN_WARNING PFX
+			"Heartbeat lost! Will not ping the watchdog\n");
+	}
+}
+
+static int pcwd_start(void)
+{
+	int stat_reg;
+
+	pcwd_private.next_heartbeat = jiffies + (heartbeat * HZ);
+
+	/* Start the timer */
+	mod_timer(&pcwd_private.timer, jiffies + WDT_INTERVAL);
+
+	/* Enable the port */
+	if (pcwd_private.revision == PCWD_REVISION_C) {
+		spin_lock(&pcwd_private.io_lock);
+		outb_p(0x00, pcwd_private.io_addr + 3);
+		udelay(ISA_COMMAND_TIMEOUT);
+		stat_reg = inb_p(pcwd_private.io_addr + 2);
+		spin_unlock(&pcwd_private.io_lock);
+		if (stat_reg & WD_WDIS) {
+			printk(KERN_INFO PFX "Could not start watchdog\n");
+			return -EIO;
+		}
+	}
+
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "Watchdog started\n");
+
+	return 0;
+}
+
+static int pcwd_stop(void)
+{
+	int stat_reg;
+
+	/* Stop the timer */
+	del_timer(&pcwd_private.timer);
+
+	/*  Disable the board  */
+	if (pcwd_private.revision == PCWD_REVISION_C) {
+		spin_lock(&pcwd_private.io_lock);
+		outb_p(0xA5, pcwd_private.io_addr + 3);
+		udelay(ISA_COMMAND_TIMEOUT);
+		outb_p(0xA5, pcwd_private.io_addr + 3);
+		udelay(ISA_COMMAND_TIMEOUT);
+		stat_reg = inb_p(pcwd_private.io_addr + 2);
+		spin_unlock(&pcwd_private.io_lock);
+		if ((stat_reg & WD_WDIS) == 0) {
+			printk(KERN_INFO PFX "Could not stop watchdog\n");
+			return -EIO;
+		}
+	}
+
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "Watchdog stopped\n");
+
+	return 0;
+}
+
+static int pcwd_keepalive(void)
+{
+	/* user land ping */
+	pcwd_private.next_heartbeat = jiffies + (heartbeat * HZ);
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n");
+
+	return 0;
+}
+
+static int pcwd_set_heartbeat(int t)
+{
+	if (t < 2 || t > 7200) /* arbitrary upper limit */
+		return -EINVAL;
+
+	heartbeat = t;
+
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "New heartbeat: %d\n",
+		       heartbeat);
+
+	return 0;
+}
+
+static int pcwd_get_status(int *status)
+{
+	int control_status;
+
+	*status = 0;
+	spin_lock(&pcwd_private.io_lock);
+	if (pcwd_private.revision == PCWD_REVISION_A)
+		/* Rev A cards return status information from
+		 * the base register, which is used for the
+		 * temperature in other cards. */
+		control_status = inb(pcwd_private.io_addr);
+	else {
+		/* Rev C cards return card status in the base
+		 * address + 1 register. And use different bits
+		 * to indicate a card initiated reset, and an
+		 * over-temperature condition. And the reboot
+		 * status can be reset. */
+		control_status = inb(pcwd_private.io_addr + 1);
+	}
+	spin_unlock(&pcwd_private.io_lock);
+
+	if (pcwd_private.revision == PCWD_REVISION_A) {
+		if (control_status & WD_WDRST)
+			*status |= WDIOF_CARDRESET;
+
+		if (control_status & WD_T110) {
+			*status |= WDIOF_OVERHEAT;
+			if (temp_panic) {
+				printk(KERN_INFO PFX
+					"Temperature overheat trip!\n");
+				kernel_power_off();
+			}
+		}
+	} else {
+		if (control_status & WD_REVC_WTRP)
+			*status |= WDIOF_CARDRESET;
+
+		if (control_status & WD_REVC_TTRP) {
+			*status |= WDIOF_OVERHEAT;
+			if (temp_panic) {
+				printk(KERN_INFO PFX
+					"Temperature overheat trip!\n");
+				kernel_power_off();
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int pcwd_clear_status(void)
+{
+	int control_status;
+
+	if (pcwd_private.revision == PCWD_REVISION_C) {
+		spin_lock(&pcwd_private.io_lock);
+
+		if (debug >= VERBOSE)
+			printk(KERN_INFO PFX
+					"clearing watchdog trip status\n");
+
+		control_status = inb_p(pcwd_private.io_addr + 1);
+
+		if (debug >= DEBUG) {
+			printk(KERN_DEBUG PFX "status was: 0x%02x\n",
+				control_status);
+			printk(KERN_DEBUG PFX "sending: 0x%02x\n",
+				(control_status & WD_REVC_R2DS));
+		}
+
+		/* clear reset status & Keep Relay 2 disable state as it is */
+		outb_p((control_status & WD_REVC_R2DS),
+						pcwd_private.io_addr + 1);
+
+		spin_unlock(&pcwd_private.io_lock);
+	}
+	return 0;
+}
+
+static int pcwd_get_temperature(int *temperature)
+{
+	/* check that port 0 gives temperature info and no command results */
+	if (pcwd_private.command_mode)
+		return -1;
+
+	*temperature = 0;
+	if (!pcwd_private.supports_temp)
+		return -ENODEV;
+
+	/*
+	 * Convert celsius to fahrenheit, since this was
+	 * the decided 'standard' for this return value.
+	 */
+	spin_lock(&pcwd_private.io_lock);
+	*temperature = ((inb(pcwd_private.io_addr)) * 9 / 5) + 32;
+	spin_unlock(&pcwd_private.io_lock);
+
+	if (debug >= DEBUG) {
+		printk(KERN_DEBUG PFX "temperature is: %d F\n",
+			*temperature);
+	}
+
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static long pcwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int rv;
+	int status;
+	int temperature;
+	int new_heartbeat;
+	int __user *argp = (int __user *)arg;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_OVERHEAT |
+					WDIOF_CARDRESET |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_SETTIMEOUT |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	1,
+		.identity =		"PCWD",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		return 0;
+
+	case WDIOC_GETSTATUS:
+		pcwd_get_status(&status);
+		return put_user(status, argp);
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(pcwd_private.boot_status, argp);
+
+	case WDIOC_GETTEMP:
+		if (pcwd_get_temperature(&temperature))
+			return -EFAULT;
+
+		return put_user(temperature, argp);
+
+	case WDIOC_SETOPTIONS:
+		if (pcwd_private.revision == PCWD_REVISION_C) {
+			if (get_user(rv, argp))
+				return -EFAULT;
+
+			if (rv & WDIOS_DISABLECARD) {
+				status = pcwd_stop();
+				if (status < 0)
+					return status;
+			}
+			if (rv & WDIOS_ENABLECARD) {
+				status = pcwd_start();
+				if (status < 0)
+					return status;
+			}
+			if (rv & WDIOS_TEMPPANIC)
+				temp_panic = 1;
+		}
+		return -EINVAL;
+
+	case WDIOC_KEEPALIVE:
+		pcwd_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_heartbeat, argp))
+			return -EFAULT;
+
+		if (pcwd_set_heartbeat(new_heartbeat))
+			return -EINVAL;
+
+		pcwd_keepalive();
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, argp);
+
+	default:
+		return -ENOTTY;
+	}
+
+	return 0;
+}
+
+static ssize_t pcwd_write(struct file *file, const char __user *buf, size_t len,
+			  loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		pcwd_keepalive();
+	}
+	return len;
+}
+
+static int pcwd_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &open_allowed))
+		return -EBUSY;
+	if (nowayout)
+		__module_get(THIS_MODULE);
+	/* Activate */
+	pcwd_start();
+	pcwd_keepalive();
+	return nonseekable_open(inode, file);
+}
+
+static int pcwd_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		pcwd_stop();
+	else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		pcwd_keepalive();
+	}
+	expect_close = 0;
+	clear_bit(0, &open_allowed);
+	return 0;
+}
+
+/*
+ *	/dev/temperature handling
+ */
+
+static ssize_t pcwd_temp_read(struct file *file, char __user *buf, size_t count,
+			 loff_t *ppos)
+{
+	int temperature;
+
+	if (pcwd_get_temperature(&temperature))
+		return -EFAULT;
+
+	if (copy_to_user(buf, &temperature, 1))
+		return -EFAULT;
+
+	return 1;
+}
+
+static int pcwd_temp_open(struct inode *inode, struct file *file)
+{
+	if (!pcwd_private.supports_temp)
+		return -ENODEV;
+
+	return nonseekable_open(inode, file);
+}
+
+static int pcwd_temp_close(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations pcwd_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= pcwd_write,
+	.unlocked_ioctl	= pcwd_ioctl,
+	.open		= pcwd_open,
+	.release	= pcwd_close,
+};
+
+static struct miscdevice pcwd_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&pcwd_fops,
+};
+
+static const struct file_operations pcwd_temp_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= pcwd_temp_read,
+	.open		= pcwd_temp_open,
+	.release	= pcwd_temp_close,
+};
+
+static struct miscdevice temp_miscdev = {
+	.minor =	TEMP_MINOR,
+	.name =		"temperature",
+	.fops =		&pcwd_temp_fops,
+};
+
+/*
+ *	Init & exit routines
+ */
+
+static inline int get_revision(void)
+{
+	int r = PCWD_REVISION_C;
+
+	spin_lock(&pcwd_private.io_lock);
+	/* REV A cards use only 2 io ports; test
+	 * presumes a floating bus reads as 0xff. */
+	if ((inb(pcwd_private.io_addr + 2) == 0xFF) ||
+	    (inb(pcwd_private.io_addr + 3) == 0xFF))
+		r = PCWD_REVISION_A;
+	spin_unlock(&pcwd_private.io_lock);
+
+	return r;
+}
+
+/*
+ *  The ISA cards have a heartbeat bit in one of the registers, which
+ *  register is card dependent.  The heartbeat bit is monitored, and if
+ *  found, is considered proof that a Berkshire card has been found.
+ *  The initial rate is once per second at board start up, then twice
+ *  per second for normal operation.
+ */
+static int __devinit pcwd_isa_match(struct device *dev, unsigned int id)
+{
+	int base_addr = pcwd_ioports[id];
+	int port0, last_port0;	/* Reg 0, in case it's REV A */
+	int port1, last_port1;	/* Register 1 for REV C cards */
+	int i;
+	int retval;
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "pcwd_isa_match id=%d\n",
+			id);
+
+	if (!request_region(base_addr, 4, "PCWD")) {
+		printk(KERN_INFO PFX "Port 0x%04x unavailable\n", base_addr);
+		return 0;
+	}
+
+	retval = 0;
+
+	port0 = inb_p(base_addr);	/* For REV A boards */
+	port1 = inb_p(base_addr + 1);	/* For REV C boards */
+	if (port0 != 0xff || port1 != 0xff) {
+		/* Not an 'ff' from a floating bus, so must be a card! */
+		for (i = 0; i < 4; ++i) {
+
+			msleep(500);
+
+			last_port0 = port0;
+			last_port1 = port1;
+
+			port0 = inb_p(base_addr);
+			port1 = inb_p(base_addr + 1);
+
+			/* Has either hearbeat bit changed?  */
+			if ((port0 ^ last_port0) & WD_HRTBT ||
+			    (port1 ^ last_port1) & WD_REVC_HRBT) {
+				retval = 1;
+				break;
+			}
+		}
+	}
+	release_region(base_addr, 4);
+
+	return retval;
+}
+
+static int __devinit pcwd_isa_probe(struct device *dev, unsigned int id)
+{
+	int ret;
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "pcwd_isa_probe id=%d\n",
+			id);
+
+	cards_found++;
+	if (cards_found == 1)
+		printk(KERN_INFO PFX "v%s Ken Hollis (kenji@bitgate.com)\n",
+								WD_VER);
+
+	if (cards_found > 1) {
+		printk(KERN_ERR PFX "This driver only supports 1 device\n");
+		return -ENODEV;
+	}
+
+	if (pcwd_ioports[id] == 0x0000) {
+		printk(KERN_ERR PFX "No I/O-Address for card detected\n");
+		return -ENODEV;
+	}
+	pcwd_private.io_addr = pcwd_ioports[id];
+
+	spin_lock_init(&pcwd_private.io_lock);
+
+	/* Check card's revision */
+	pcwd_private.revision = get_revision();
+
+	if (!request_region(pcwd_private.io_addr,
+		(pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4, "PCWD")) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			pcwd_private.io_addr);
+		ret = -EIO;
+		goto error_request_region;
+	}
+
+	/* Initial variables */
+	pcwd_private.supports_temp = 0;
+	temp_panic = 0;
+	pcwd_private.boot_status = 0x0000;
+
+	/* get the boot_status */
+	pcwd_get_status(&pcwd_private.boot_status);
+
+	/* clear the "card caused reboot" flag */
+	pcwd_clear_status();
+
+	setup_timer(&pcwd_private.timer, pcwd_timer_ping, 0);
+
+	/*  Disable the board  */
+	pcwd_stop();
+
+	/*  Check whether or not the card supports the temperature device */
+	pcwd_check_temperature_support();
+
+	/* Show info about the card itself */
+	pcwd_show_card_info();
+
+	/* If heartbeat = 0 then we use the heartbeat from the dip-switches */
+	if (heartbeat == 0)
+		heartbeat = heartbeat_tbl[(pcwd_get_option_switches() & 0x07)];
+
+	/* Check that the heartbeat value is within it's range;
+	   if not reset to the default */
+	if (pcwd_set_heartbeat(heartbeat)) {
+		pcwd_set_heartbeat(WATCHDOG_HEARTBEAT);
+		printk(KERN_INFO PFX
+		  "heartbeat value must be 2 <= heartbeat <= 7200, using %d\n",
+							WATCHDOG_HEARTBEAT);
+	}
+
+	if (pcwd_private.supports_temp) {
+		ret = misc_register(&temp_miscdev);
+		if (ret) {
+			printk(KERN_ERR PFX
+			    "cannot register miscdev on minor=%d (err=%d)\n",
+							TEMP_MINOR, ret);
+			goto error_misc_register_temp;
+		}
+	}
+
+	ret = misc_register(&pcwd_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+					WATCHDOG_MINOR, ret);
+		goto error_misc_register_watchdog;
+	}
+
+	printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+		heartbeat, nowayout);
+
+	return 0;
+
+error_misc_register_watchdog:
+	if (pcwd_private.supports_temp)
+		misc_deregister(&temp_miscdev);
+error_misc_register_temp:
+	release_region(pcwd_private.io_addr,
+			(pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
+error_request_region:
+	pcwd_private.io_addr = 0x0000;
+	cards_found--;
+	return ret;
+}
+
+static int __devexit pcwd_isa_remove(struct device *dev, unsigned int id)
+{
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "pcwd_isa_remove id=%d\n",
+			id);
+
+	if (!pcwd_private.io_addr)
+		return 1;
+
+	/*  Disable the board  */
+	if (!nowayout)
+		pcwd_stop();
+
+	/* Deregister */
+	misc_deregister(&pcwd_miscdev);
+	if (pcwd_private.supports_temp)
+		misc_deregister(&temp_miscdev);
+	release_region(pcwd_private.io_addr,
+			(pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
+	pcwd_private.io_addr = 0x0000;
+	cards_found--;
+
+	return 0;
+}
+
+static void pcwd_isa_shutdown(struct device *dev, unsigned int id)
+{
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "pcwd_isa_shutdown id=%d\n",
+			id);
+
+	pcwd_stop();
+}
+
+static struct isa_driver pcwd_isa_driver = {
+	.match		= pcwd_isa_match,
+	.probe		= pcwd_isa_probe,
+	.remove		= __devexit_p(pcwd_isa_remove),
+	.shutdown	= pcwd_isa_shutdown,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= WATCHDOG_NAME,
+	},
+};
+
+static int __init pcwd_init_module(void)
+{
+	return isa_register_driver(&pcwd_isa_driver, PCWD_ISA_NR_CARDS);
+}
+
+static void __exit pcwd_cleanup_module(void)
+{
+	isa_unregister_driver(&pcwd_isa_driver);
+	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+}
+
+module_init(pcwd_init_module);
+module_exit(pcwd_cleanup_module);
+
+MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, Wim Van Sebroeck <wim@iguana.be>");
+MODULE_DESCRIPTION("Berkshire ISA-PC Watchdog driver");
+MODULE_VERSION(WATCHDOG_VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c
new file mode 100644
index 0000000..5d76422
--- /dev/null
+++ b/drivers/watchdog/pcwd_pci.c
@@ -0,0 +1,825 @@
+/*
+ *	Berkshire PCI-PC Watchdog Card Driver
+ *
+ *	(c) Copyright 2003-2007 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ *	Based on source code of the following authors:
+ *	  Ken Hollis <kenji@bitgate.com>,
+ *	  Lindsay Harris <lindsay@bluegum.com>,
+ *	  Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *	  Matt Domsch <Matt_Domsch@dell.com>,
+ *	  Rob Radez <rob@osinvestor.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Wim Van Sebroeck nor Iguana vzw. admit liability nor
+ *	provide warranty for any of this software. This material is
+ *	provided "AS-IS" and at no charge.
+ */
+
+/*
+ *	A bells and whistles driver is available from:
+ *	http://www.kernel.org/pub/linux/kernel/people/wim/pcwd/pcwd_pci/
+ *
+ *	More info available at http://www.berkprod.com/ or http://www.pcwatchdog.com/
+ */
+
+/*
+ *	Includes, defines, variables, module parameters, ...
+ */
+
+#include <linux/module.h>	/* For module specific items */
+#include <linux/moduleparam.h>	/* For new moduleparam's */
+#include <linux/types.h>	/* For standard types (like size_t) */
+#include <linux/errno.h>	/* For the -ENODEV/... values */
+#include <linux/kernel.h>	/* For printk/panic/... */
+#include <linux/delay.h>	/* For mdelay function */
+#include <linux/miscdevice.h>	/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/watchdog.h>	/* For the watchdog specific items */
+#include <linux/notifier.h>	/* For notifier support */
+#include <linux/reboot.h>	/* For reboot_notifier stuff */
+#include <linux/init.h>		/* For __init/__exit/... */
+#include <linux/fs.h>		/* For file operations */
+#include <linux/pci.h>		/* For pci functions */
+#include <linux/ioport.h>	/* For io-port access */
+#include <linux/spinlock.h>	/* For spin_lock/spin_unlock/... */
+#include <linux/uaccess.h>	/* For copy_to_user/put_user/... */
+#include <linux/io.h>		/* For inb/outb/... */
+
+/* Module and version information */
+#define WATCHDOG_VERSION "1.03"
+#define WATCHDOG_DATE "21 Jan 2007"
+#define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog"
+#define WATCHDOG_NAME "pcwd_pci"
+#define PFX WATCHDOG_NAME ": "
+#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION " (" WATCHDOG_DATE ")\n"
+
+/* Stuff for the PCI ID's  */
+#ifndef PCI_VENDOR_ID_QUICKLOGIC
+#define PCI_VENDOR_ID_QUICKLOGIC    0x11e3
+#endif
+
+#ifndef PCI_DEVICE_ID_WATCHDOG_PCIPCWD
+#define PCI_DEVICE_ID_WATCHDOG_PCIPCWD 0x5030
+#endif
+
+/*
+ * These are the defines that describe the control status bits for the
+ * PCI-PC Watchdog card.
+ */
+/* Port 1 : Control Status #1 */
+#define WD_PCI_WTRP		0x01	/* Watchdog Trip status */
+#define WD_PCI_HRBT		0x02	/* Watchdog Heartbeat */
+#define WD_PCI_TTRP		0x04	/* Temperature Trip status */
+#define WD_PCI_RL2A		0x08	/* Relay 2 Active */
+#define WD_PCI_RL1A		0x10	/* Relay 1 Active */
+#define WD_PCI_R2DS		0x40	/* Relay 2 Disable Temperature-trip/reset */
+#define WD_PCI_RLY2		0x80	/* Activate Relay 2 on the board */
+/* Port 2 : Control Status #2 */
+#define WD_PCI_WDIS		0x10	/* Watchdog Disable */
+#define WD_PCI_ENTP		0x20	/* Enable Temperature Trip Reset */
+#define WD_PCI_WRSP		0x40	/* Watchdog wrote response */
+#define WD_PCI_PCMD		0x80	/* PC has sent command */
+
+/* according to documentation max. time to process a command for the pci
+ * watchdog card is 100 ms, so we give it 150 ms to do it's job */
+#define PCI_COMMAND_TIMEOUT	150
+
+/* Watchdog's internal commands */
+#define CMD_GET_STATUS				0x04
+#define CMD_GET_FIRMWARE_VERSION		0x08
+#define CMD_READ_WATCHDOG_TIMEOUT		0x18
+#define CMD_WRITE_WATCHDOG_TIMEOUT		0x19
+#define CMD_GET_CLEAR_RESET_COUNT		0x84
+
+/* Watchdog's Dip Switch heartbeat values */
+static const int heartbeat_tbl[] = {
+	5,	/* OFF-OFF-OFF	=  5 Sec  */
+	10,	/* OFF-OFF-ON	= 10 Sec  */
+	30,	/* OFF-ON-OFF	= 30 Sec  */
+	60,	/* OFF-ON-ON	=  1 Min  */
+	300,	/* ON-OFF-OFF	=  5 Min  */
+	600,	/* ON-OFF-ON	= 10 Min  */
+	1800,	/* ON-ON-OFF	= 30 Min  */
+	3600,	/* ON-ON-ON	=  1 hour */
+};
+
+/* We can only use 1 card due to the /dev/watchdog restriction */
+static int cards_found;
+
+/* internal variables */
+static int temp_panic;
+static unsigned long is_active;
+static char expect_release;
+static struct {				/* this is private data for each PCI-PC watchdog card */
+	int supports_temp;		/* Wether or not the card has a temperature device */
+	int boot_status;		/* The card's boot status */
+	unsigned long io_addr;		/* The cards I/O address */
+	spinlock_t io_lock;		/* the lock for io operations */
+	struct pci_dev *pdev;		/* the PCI-device */
+} pcipcwd_private;
+
+/* module parameters */
+#define QUIET	0	/* Default */
+#define VERBOSE	1	/* Verbose */
+#define DEBUG	2	/* print fancy stuff too */
+static int debug = QUIET;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level: 0=Quiet, 1=Verbose, 2=Debug (default=0)");
+
+#define WATCHDOG_HEARTBEAT 0	/* default heartbeat = delay-time from dip-switches */
+static int heartbeat = WATCHDOG_HEARTBEAT;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Internal functions
+ */
+
+static int send_command(int cmd, int *msb, int *lsb)
+{
+	int got_response, count;
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x\n",
+		cmd, *msb, *lsb);
+
+	spin_lock(&pcipcwd_private.io_lock);
+	/* If a command requires data it should be written first.
+	 * Data for commands with 8 bits of data should be written to port 4.
+	 * Commands with 16 bits of data, should be written as LSB to port 4
+	 * and MSB to port 5.
+	 * After the required data has been written then write the command to
+	 * port 6. */
+	outb_p(*lsb, pcipcwd_private.io_addr + 4);
+	outb_p(*msb, pcipcwd_private.io_addr + 5);
+	outb_p(cmd, pcipcwd_private.io_addr + 6);
+
+	/* wait till the pci card processed the command, signaled by
+	 * the WRSP bit in port 2 and give it a max. timeout of
+	 * PCI_COMMAND_TIMEOUT to process */
+	got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP;
+	for (count = 0; (count < PCI_COMMAND_TIMEOUT) && (!got_response); count++) {
+		mdelay(1);
+		got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP;
+	}
+
+	if (debug >= DEBUG) {
+		if (got_response) {
+			printk(KERN_DEBUG PFX "time to process command was: %d ms\n",
+				count);
+		} else {
+			printk(KERN_DEBUG PFX "card did not respond on command!\n");
+		}
+	}
+
+	if (got_response) {
+		/* read back response */
+		*lsb = inb_p(pcipcwd_private.io_addr + 4);
+		*msb = inb_p(pcipcwd_private.io_addr + 5);
+
+		/* clear WRSP bit */
+		inb_p(pcipcwd_private.io_addr + 6);
+
+		if (debug >= DEBUG)
+			printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: msb=0x%02x lsb=0x%02x\n",
+				cmd, *msb, *lsb);
+	}
+
+	spin_unlock(&pcipcwd_private.io_lock);
+
+	return got_response;
+}
+
+static inline void pcipcwd_check_temperature_support(void)
+{
+	if (inb_p(pcipcwd_private.io_addr) != 0xF0)
+		pcipcwd_private.supports_temp = 1;
+}
+
+static int pcipcwd_get_option_switches(void)
+{
+	int option_switches;
+
+	option_switches = inb_p(pcipcwd_private.io_addr + 3);
+	return option_switches;
+}
+
+static void pcipcwd_show_card_info(void)
+{
+	int got_fw_rev, fw_rev_major, fw_rev_minor;
+	char fw_ver_str[20];		/* The cards firmware version */
+	int option_switches;
+
+	got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor);
+	if (got_fw_rev)
+		sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor);
+	else
+		sprintf(fw_ver_str, "<card no answer>");
+
+	/* Get switch settings */
+	option_switches = pcipcwd_get_option_switches();
+
+	printk(KERN_INFO PFX "Found card at port 0x%04x (Firmware: %s) %s temp option\n",
+		(int) pcipcwd_private.io_addr, fw_ver_str,
+		(pcipcwd_private.supports_temp ? "with" : "without"));
+
+	printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
+		option_switches,
+		((option_switches & 0x10) ? "ON" : "OFF"),
+		((option_switches & 0x08) ? "ON" : "OFF"));
+
+	if (pcipcwd_private.boot_status & WDIOF_CARDRESET)
+		printk(KERN_INFO PFX "Previous reset was caused by the Watchdog card\n");
+
+	if (pcipcwd_private.boot_status & WDIOF_OVERHEAT)
+		printk(KERN_INFO PFX "Card sensed a CPU Overheat\n");
+
+	if (pcipcwd_private.boot_status == 0)
+		printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
+}
+
+static int pcipcwd_start(void)
+{
+	int stat_reg;
+
+	spin_lock(&pcipcwd_private.io_lock);
+	outb_p(0x00, pcipcwd_private.io_addr + 3);
+	udelay(1000);
+
+	stat_reg = inb_p(pcipcwd_private.io_addr + 2);
+	spin_unlock(&pcipcwd_private.io_lock);
+
+	if (stat_reg & WD_PCI_WDIS) {
+		printk(KERN_ERR PFX "Card timer not enabled\n");
+		return -1;
+	}
+
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "Watchdog started\n");
+
+	return 0;
+}
+
+static int pcipcwd_stop(void)
+{
+	int stat_reg;
+
+	spin_lock(&pcipcwd_private.io_lock);
+	outb_p(0xA5, pcipcwd_private.io_addr + 3);
+	udelay(1000);
+
+	outb_p(0xA5, pcipcwd_private.io_addr + 3);
+	udelay(1000);
+
+	stat_reg = inb_p(pcipcwd_private.io_addr + 2);
+	spin_unlock(&pcipcwd_private.io_lock);
+
+	if (!(stat_reg & WD_PCI_WDIS)) {
+		printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n");
+		return -1;
+	}
+
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "Watchdog stopped\n");
+
+	return 0;
+}
+
+static int pcipcwd_keepalive(void)
+{
+	/* Re-trigger watchdog by writing to port 0 */
+	spin_lock(&pcipcwd_private.io_lock);
+	outb_p(0x42, pcipcwd_private.io_addr);	/* send out any data */
+	spin_unlock(&pcipcwd_private.io_lock);
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n");
+
+	return 0;
+}
+
+static int pcipcwd_set_heartbeat(int t)
+{
+	int t_msb = t / 256;
+	int t_lsb = t % 256;
+
+	if ((t < 0x0001) || (t > 0xFFFF))
+		return -EINVAL;
+
+	/* Write new heartbeat to watchdog */
+	send_command(CMD_WRITE_WATCHDOG_TIMEOUT, &t_msb, &t_lsb);
+
+	heartbeat = t;
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "New heartbeat: %d\n",
+		       heartbeat);
+
+	return 0;
+}
+
+static int pcipcwd_get_status(int *status)
+{
+	int control_status;
+
+	*status = 0;
+	control_status = inb_p(pcipcwd_private.io_addr + 1);
+	if (control_status & WD_PCI_WTRP)
+		*status |= WDIOF_CARDRESET;
+	if (control_status & WD_PCI_TTRP) {
+		*status |= WDIOF_OVERHEAT;
+		if (temp_panic)
+			panic(PFX "Temperature overheat trip!\n");
+	}
+
+	if (debug >= DEBUG)
+		printk(KERN_DEBUG PFX "Control Status #1: 0x%02x\n",
+		       control_status);
+
+	return 0;
+}
+
+static int pcipcwd_clear_status(void)
+{
+	int control_status;
+	int msb;
+	int reset_counter;
+
+	if (debug >= VERBOSE)
+		printk(KERN_INFO PFX "clearing watchdog trip status & LED\n");
+
+	control_status = inb_p(pcipcwd_private.io_addr + 1);
+
+	if (debug >= DEBUG) {
+		printk(KERN_DEBUG PFX "status was: 0x%02x\n", control_status);
+		printk(KERN_DEBUG PFX "sending: 0x%02x\n",
+		       (control_status & WD_PCI_R2DS) | WD_PCI_WTRP);
+	}
+
+	/* clear trip status & LED and keep mode of relay 2 */
+	outb_p((control_status & WD_PCI_R2DS) | WD_PCI_WTRP, pcipcwd_private.io_addr + 1);
+
+	/* clear reset counter */
+	msb = 0;
+	reset_counter = 0xff;
+	send_command(CMD_GET_CLEAR_RESET_COUNT, &msb, &reset_counter);
+
+	if (debug >= DEBUG) {
+		printk(KERN_DEBUG PFX "reset count was: 0x%02x\n",
+		       reset_counter);
+	}
+
+	return 0;
+}
+
+static int pcipcwd_get_temperature(int *temperature)
+{
+	*temperature = 0;
+	if (!pcipcwd_private.supports_temp)
+		return -ENODEV;
+
+	spin_lock(&pcipcwd_private.io_lock);
+	*temperature = inb_p(pcipcwd_private.io_addr);
+	spin_unlock(&pcipcwd_private.io_lock);
+
+	/*
+	 * Convert celsius to fahrenheit, since this was
+	 * the decided 'standard' for this return value.
+	 */
+	*temperature = (*temperature * 9 / 5) + 32;
+
+	if (debug >= DEBUG) {
+		printk(KERN_DEBUG PFX "temperature is: %d F\n",
+		       *temperature);
+	}
+
+	return 0;
+}
+
+static int pcipcwd_get_timeleft(int *time_left)
+{
+	int msb;
+	int lsb;
+
+	/* Read the time that's left before rebooting */
+	/* Note: if the board is not yet armed then we will read 0xFFFF */
+	send_command(CMD_READ_WATCHDOG_TIMEOUT, &msb, &lsb);
+
+	*time_left = (msb << 8) + lsb;
+
+	if (debug >= VERBOSE)
+		printk(KERN_DEBUG PFX "Time left before next reboot: %d\n",
+		       *time_left);
+
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static ssize_t pcipcwd_write(struct file *file, const char __user *data,
+			     size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* note: just in case someone wrote the magic character
+			 * five months ago... */
+			expect_release = 0;
+
+			/* scan to see whether or not we got the magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_release = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		pcipcwd_keepalive();
+	}
+	return len;
+}
+
+static long pcipcwd_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_OVERHEAT |
+					WDIOF_CARDRESET |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_SETTIMEOUT |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	1,
+		.identity =		WATCHDOG_DRIVER_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+	{
+		int status;
+		pcipcwd_get_status(&status);
+		return put_user(status, p);
+	}
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(pcipcwd_private.boot_status, p);
+
+	case WDIOC_GETTEMP:
+	{
+		int temperature;
+
+		if (pcipcwd_get_temperature(&temperature))
+			return -EFAULT;
+
+		return put_user(temperature, p);
+	}
+
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+
+		if (get_user(new_options, p))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			if (pcipcwd_stop())
+				return -EIO;
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			if (pcipcwd_start())
+				return -EIO;
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_TEMPPANIC) {
+			temp_panic = 1;
+			retval = 0;
+		}
+
+		return retval;
+	}
+
+	case WDIOC_KEEPALIVE:
+		pcipcwd_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_heartbeat;
+
+		if (get_user(new_heartbeat, p))
+			return -EFAULT;
+
+		if (pcipcwd_set_heartbeat(new_heartbeat))
+		    return -EINVAL;
+
+		pcipcwd_keepalive();
+		/* Fall */
+	}
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+
+	case WDIOC_GETTIMELEFT:
+	{
+		int time_left;
+
+		if (pcipcwd_get_timeleft(&time_left))
+			return -EFAULT;
+
+		return put_user(time_left, p);
+	}
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int pcipcwd_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &is_active)) {
+		if (debug >= VERBOSE)
+			printk(KERN_ERR PFX "Attempt to open already opened device.\n");
+		return -EBUSY;
+	}
+
+	/* Activate */
+	pcipcwd_start();
+	pcipcwd_keepalive();
+	return nonseekable_open(inode, file);
+}
+
+static int pcipcwd_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *      Shut off the timer.
+	 */
+	if (expect_release == 42) {
+		pcipcwd_stop();
+	} else {
+		printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
+		pcipcwd_keepalive();
+	}
+	expect_release = 0;
+	clear_bit(0, &is_active);
+	return 0;
+}
+
+/*
+ *	/dev/temperature handling
+ */
+
+static ssize_t pcipcwd_temp_read(struct file *file, char __user *data,
+				size_t len, loff_t *ppos)
+{
+	int temperature;
+
+	if (pcipcwd_get_temperature(&temperature))
+		return -EFAULT;
+
+	if (copy_to_user(data, &temperature, 1))
+		return -EFAULT;
+
+	return 1;
+}
+
+static int pcipcwd_temp_open(struct inode *inode, struct file *file)
+{
+	if (!pcipcwd_private.supports_temp)
+		return -ENODEV;
+
+	return nonseekable_open(inode, file);
+}
+
+static int pcipcwd_temp_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+/*
+ *	Notify system
+ */
+
+static int pcipcwd_notify_sys(struct notifier_block *this, unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		pcipcwd_stop();	/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations pcipcwd_fops = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+	.write =	pcipcwd_write,
+	.unlocked_ioctl = pcipcwd_ioctl,
+	.open =		pcipcwd_open,
+	.release =	pcipcwd_release,
+};
+
+static struct miscdevice pcipcwd_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&pcipcwd_fops,
+};
+
+static const struct file_operations pcipcwd_temp_fops = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+	.read =		pcipcwd_temp_read,
+	.open =		pcipcwd_temp_open,
+	.release =	pcipcwd_temp_release,
+};
+
+static struct miscdevice pcipcwd_temp_miscdev = {
+	.minor =	TEMP_MINOR,
+	.name =		"temperature",
+	.fops =		&pcipcwd_temp_fops,
+};
+
+static struct notifier_block pcipcwd_notifier = {
+	.notifier_call =	pcipcwd_notify_sys,
+};
+
+/*
+ *	Init & exit routines
+ */
+
+static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
+		const struct pci_device_id *ent)
+{
+	int ret = -EIO;
+
+	cards_found++;
+	if (cards_found == 1)
+		printk(KERN_INFO PFX DRIVER_VERSION);
+
+	if (cards_found > 1) {
+		printk(KERN_ERR PFX "This driver only supports 1 device\n");
+		return -ENODEV;
+	}
+
+	if (pci_enable_device(pdev)) {
+		printk(KERN_ERR PFX "Not possible to enable PCI Device\n");
+		return -ENODEV;
+	}
+
+	if (pci_resource_start(pdev, 0) == 0x0000) {
+		printk(KERN_ERR PFX "No I/O-Address for card detected\n");
+		ret = -ENODEV;
+		goto err_out_disable_device;
+	}
+
+	pcipcwd_private.pdev = pdev;
+	pcipcwd_private.io_addr = pci_resource_start(pdev, 0);
+
+	if (pci_request_regions(pdev, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			(int) pcipcwd_private.io_addr);
+		ret = -EIO;
+		goto err_out_disable_device;
+	}
+
+	/* get the boot_status */
+	pcipcwd_get_status(&pcipcwd_private.boot_status);
+
+	/* clear the "card caused reboot" flag */
+	pcipcwd_clear_status();
+
+	/* disable card */
+	pcipcwd_stop();
+
+	/* Check whether or not the card supports the temperature device */
+	pcipcwd_check_temperature_support();
+
+	/* Show info about the card itself */
+	pcipcwd_show_card_info();
+
+	/* If heartbeat = 0 then we use the heartbeat from the dip-switches */
+	if (heartbeat == 0)
+		heartbeat = heartbeat_tbl[(pcipcwd_get_option_switches() & 0x07)];
+
+	/* Check that the heartbeat value is within it's range ; if not reset to the default */
+	if (pcipcwd_set_heartbeat(heartbeat)) {
+		pcipcwd_set_heartbeat(WATCHDOG_HEARTBEAT);
+		printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n",
+			WATCHDOG_HEARTBEAT);
+	}
+
+	ret = register_reboot_notifier(&pcipcwd_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
+			ret);
+		goto err_out_release_region;
+	}
+
+	if (pcipcwd_private.supports_temp) {
+		ret = misc_register(&pcipcwd_temp_miscdev);
+		if (ret != 0) {
+			printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+				TEMP_MINOR, ret);
+			goto err_out_unregister_reboot;
+		}
+	}
+
+	ret = misc_register(&pcipcwd_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+			WATCHDOG_MINOR, ret);
+		goto err_out_misc_deregister;
+	}
+
+	printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+		heartbeat, nowayout);
+
+	return 0;
+
+err_out_misc_deregister:
+	if (pcipcwd_private.supports_temp)
+		misc_deregister(&pcipcwd_temp_miscdev);
+err_out_unregister_reboot:
+	unregister_reboot_notifier(&pcipcwd_notifier);
+err_out_release_region:
+	pci_release_regions(pdev);
+err_out_disable_device:
+	pci_disable_device(pdev);
+	return ret;
+}
+
+static void __devexit pcipcwd_card_exit(struct pci_dev *pdev)
+{
+	/* Stop the timer before we leave */
+	if (!nowayout)
+		pcipcwd_stop();
+
+	/* Deregister */
+	misc_deregister(&pcipcwd_miscdev);
+	if (pcipcwd_private.supports_temp)
+		misc_deregister(&pcipcwd_temp_miscdev);
+	unregister_reboot_notifier(&pcipcwd_notifier);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	cards_found--;
+}
+
+static struct pci_device_id pcipcwd_pci_tbl[] = {
+	{ PCI_VENDOR_ID_QUICKLOGIC, PCI_DEVICE_ID_WATCHDOG_PCIPCWD,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{ 0 },			/* End of list */
+};
+MODULE_DEVICE_TABLE(pci, pcipcwd_pci_tbl);
+
+static struct pci_driver pcipcwd_driver = {
+	.name		= WATCHDOG_NAME,
+	.id_table	= pcipcwd_pci_tbl,
+	.probe		= pcipcwd_card_init,
+	.remove		= __devexit_p(pcipcwd_card_exit),
+};
+
+static int __init pcipcwd_init_module(void)
+{
+	spin_lock_init(&pcipcwd_private.io_lock);
+
+	return pci_register_driver(&pcipcwd_driver);
+}
+
+static void __exit pcipcwd_cleanup_module(void)
+{
+	pci_unregister_driver(&pcipcwd_driver);
+
+	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+}
+
+module_init(pcipcwd_init_module);
+module_exit(pcipcwd_cleanup_module);
+
+MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
+MODULE_DESCRIPTION("Berkshire PCI-PC Watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
new file mode 100644
index 0000000..afb0896
--- /dev/null
+++ b/drivers/watchdog/pcwd_usb.c
@@ -0,0 +1,820 @@
+/*
+ *	Berkshire USB-PC Watchdog Card Driver
+ *
+ *	(c) Copyright 2004-2007 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ *	Based on source code of the following authors:
+ *	  Ken Hollis <kenji@bitgate.com>,
+ *	  Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *	  Matt Domsch <Matt_Domsch@dell.com>,
+ *	  Rob Radez <rob@osinvestor.com>,
+ *	  Greg Kroah-Hartman <greg@kroah.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Wim Van Sebroeck nor Iguana vzw. admit liability nor
+ *	provide warranty for any of this software. This material is
+ *	provided "AS-IS" and at no charge.
+ *
+ *	Thanks also to Simon Machell at Berkshire Products Inc. for
+ *	providing the test hardware. More info is available at
+ *	http://www.berkprod.com/ or http://www.pcwatchdog.com/
+ */
+
+#include <linux/module.h>	/* For module specific items */
+#include <linux/moduleparam.h>	/* For new moduleparam's */
+#include <linux/types.h>	/* For standard types (like size_t) */
+#include <linux/errno.h>	/* For the -ENODEV/... values */
+#include <linux/kernel.h>	/* For printk/panic/... */
+#include <linux/delay.h>	/* For mdelay function */
+#include <linux/miscdevice.h>	/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/watchdog.h>	/* For the watchdog specific items */
+#include <linux/notifier.h>	/* For notifier support */
+#include <linux/reboot.h>	/* For reboot_notifier stuff */
+#include <linux/init.h>		/* For __init/__exit/... */
+#include <linux/fs.h>		/* For file operations */
+#include <linux/usb.h>		/* For USB functions */
+#include <linux/slab.h>		/* For kmalloc, ... */
+#include <linux/mutex.h>	/* For mutex locking */
+#include <linux/hid.h>		/* For HID_REQ_SET_REPORT & HID_DT_REPORT */
+#include <linux/uaccess.h>	/* For copy_to_user/put_user/... */
+
+
+#ifdef CONFIG_USB_DEBUG
+	static int debug = 1;
+#else
+	static int debug;
+#endif
+
+/* Use our own dbg macro */
+#undef dbg
+#define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0)
+
+
+/* Module and Version Information */
+#define DRIVER_VERSION "1.02"
+#define DRIVER_DATE "21 Jan 2007"
+#define DRIVER_AUTHOR "Wim Van Sebroeck <wim@iguana.be>"
+#define DRIVER_DESC "Berkshire USB-PC Watchdog driver"
+#define DRIVER_LICENSE "GPL"
+#define DRIVER_NAME "pcwd_usb"
+#define PFX DRIVER_NAME ": "
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
+
+/* Module Parameters */
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+
+#define WATCHDOG_HEARTBEAT 0	/* default heartbeat = delay-time from dip-switches */
+static int heartbeat = WATCHDOG_HEARTBEAT;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/* The vendor and product id's for the USB-PC Watchdog card */
+#define USB_PCWD_VENDOR_ID	0x0c98
+#define USB_PCWD_PRODUCT_ID	0x1140
+
+/* table of devices that work with this driver */
+static struct usb_device_id usb_pcwd_table[] = {
+	{ USB_DEVICE(USB_PCWD_VENDOR_ID, USB_PCWD_PRODUCT_ID) },
+	{ }					/* Terminating entry */
+};
+MODULE_DEVICE_TABLE (usb, usb_pcwd_table);
+
+/* according to documentation max. time to process a command for the USB
+ * watchdog card is 100 or 200 ms, so we give it 250 ms to do it's job */
+#define USB_COMMAND_TIMEOUT	250
+
+/* Watchdog's internal commands */
+#define CMD_READ_TEMP			0x02	/* Read Temperature; Re-trigger Watchdog */
+#define CMD_TRIGGER			CMD_READ_TEMP
+#define CMD_GET_STATUS			0x04	/* Get Status Information */
+#define CMD_GET_FIRMWARE_VERSION	0x08	/* Get Firmware Version */
+#define CMD_GET_DIP_SWITCH_SETTINGS	0x0c	/* Get Dip Switch Settings */
+#define CMD_READ_WATCHDOG_TIMEOUT	0x18	/* Read Current Watchdog Time */
+#define CMD_WRITE_WATCHDOG_TIMEOUT	0x19	/* Write Current Watchdog Time */
+#define CMD_ENABLE_WATCHDOG		0x30	/* Enable / Disable Watchdog */
+#define CMD_DISABLE_WATCHDOG		CMD_ENABLE_WATCHDOG
+
+/* Watchdog's Dip Switch heartbeat values */
+static const int heartbeat_tbl[] = {
+	5,	/* OFF-OFF-OFF	=  5 Sec  */
+	10,	/* OFF-OFF-ON	= 10 Sec  */
+	30,	/* OFF-ON-OFF	= 30 Sec  */
+	60,	/* OFF-ON-ON	=  1 Min  */
+	300,	/* ON-OFF-OFF	=  5 Min  */
+	600,	/* ON-OFF-ON	= 10 Min  */
+	1800,	/* ON-ON-OFF	= 30 Min  */
+	3600,	/* ON-ON-ON	=  1 hour */
+};
+
+/* We can only use 1 card due to the /dev/watchdog restriction */
+static int cards_found;
+
+/* some internal variables */
+static unsigned long is_active;
+static char expect_release;
+
+/* Structure to hold all of our device specific stuff */
+struct usb_pcwd_private {
+	struct usb_device	*udev;			/* save off the usb device pointer */
+	struct usb_interface	*interface;		/* the interface for this device */
+
+	unsigned int		interface_number;	/* the interface number used for cmd's */
+
+	unsigned char		*intr_buffer;		/* the buffer to intr data */
+	dma_addr_t		intr_dma;		/* the dma address for the intr buffer */
+	size_t			intr_size;		/* the size of the intr buffer */
+	struct urb		*intr_urb;		/* the urb used for the intr pipe */
+
+	unsigned char		cmd_command;		/* The command that is reported back */
+	unsigned char		cmd_data_msb;		/* The data MSB that is reported back */
+	unsigned char		cmd_data_lsb;		/* The data LSB that is reported back */
+	atomic_t		cmd_received;		/* true if we received a report after a command */
+
+	int			exists;			/* Wether or not the device exists */
+	struct mutex		mtx;			/* locks this structure */
+};
+static struct usb_pcwd_private *usb_pcwd_device;
+
+/* prevent races between open() and disconnect() */
+static DEFINE_MUTEX(disconnect_mutex);
+
+/* local function prototypes */
+static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_device_id *id);
+static void usb_pcwd_disconnect(struct usb_interface *interface);
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver usb_pcwd_driver = {
+	.name =		DRIVER_NAME,
+	.probe =	usb_pcwd_probe,
+	.disconnect =	usb_pcwd_disconnect,
+	.id_table =	usb_pcwd_table,
+};
+
+
+static void usb_pcwd_intr_done(struct urb *urb)
+{
+	struct usb_pcwd_private *usb_pcwd = (struct usb_pcwd_private *)urb->context;
+	unsigned char *data = usb_pcwd->intr_buffer;
+	int retval;
+
+	switch (urb->status) {
+	case 0:			/* success */
+		break;
+	case -ECONNRESET:	/* unlink */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+		return;
+	/* -EPIPE:  should clear the halt */
+	default:		/* error */
+		dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+		goto resubmit;
+	}
+
+	dbg("received following data cmd=0x%02x msb=0x%02x lsb=0x%02x",
+		data[0], data[1], data[2]);
+
+	usb_pcwd->cmd_command  = data[0];
+	usb_pcwd->cmd_data_msb = data[1];
+	usb_pcwd->cmd_data_lsb = data[2];
+
+	/* notify anyone waiting that the cmd has finished */
+	atomic_set(&usb_pcwd->cmd_received, 1);
+
+resubmit:
+	retval = usb_submit_urb(urb, GFP_ATOMIC);
+	if (retval)
+		printk(KERN_ERR PFX "can't resubmit intr, usb_submit_urb failed with result %d\n",
+			retval);
+}
+
+static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned char cmd,
+	unsigned char *msb, unsigned char *lsb)
+{
+	int got_response, count;
+	unsigned char buf[6];
+
+	/* We will not send any commands if the USB PCWD device does not exist */
+	if ((!usb_pcwd) || (!usb_pcwd->exists))
+		return -1;
+
+	/* The USB PC Watchdog uses a 6 byte report format. The board currently uses
+	 * only 3 of the six bytes of the report. */
+	buf[0] = cmd;			/* Byte 0 = CMD */
+	buf[1] = *msb;			/* Byte 1 = Data MSB */
+	buf[2] = *lsb;			/* Byte 2 = Data LSB */
+	buf[3] = buf[4] = buf[5] = 0;	/* All other bytes not used */
+
+	dbg("sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x",
+		buf[0], buf[1], buf[2]);
+
+	atomic_set(&usb_pcwd->cmd_received, 0);
+
+	if (usb_control_msg(usb_pcwd->udev, usb_sndctrlpipe(usb_pcwd->udev, 0),
+			HID_REQ_SET_REPORT, HID_DT_REPORT,
+			0x0200, usb_pcwd->interface_number, buf, sizeof(buf),
+			USB_COMMAND_TIMEOUT) != sizeof(buf)) {
+		dbg("usb_pcwd_send_command: error in usb_control_msg for cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb);
+	}
+	/* wait till the usb card processed the command,
+	 * with a max. timeout of USB_COMMAND_TIMEOUT */
+	got_response = 0;
+	for (count = 0; (count < USB_COMMAND_TIMEOUT) && (!got_response); count++) {
+		mdelay(1);
+		if (atomic_read(&usb_pcwd->cmd_received))
+			got_response = 1;
+	}
+
+	if ((got_response) && (cmd == usb_pcwd->cmd_command)) {
+		/* read back response */
+		*msb = usb_pcwd->cmd_data_msb;
+		*lsb = usb_pcwd->cmd_data_lsb;
+	}
+
+	return got_response;
+}
+
+static int usb_pcwd_start(struct usb_pcwd_private *usb_pcwd)
+{
+	unsigned char msb = 0x00;
+	unsigned char lsb = 0x00;
+	int retval;
+
+	/* Enable Watchdog */
+	retval = usb_pcwd_send_command(usb_pcwd, CMD_ENABLE_WATCHDOG, &msb, &lsb);
+
+	if ((retval == 0) || (lsb == 0)) {
+		printk(KERN_ERR PFX "Card did not acknowledge enable attempt\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int usb_pcwd_stop(struct usb_pcwd_private *usb_pcwd)
+{
+	unsigned char msb = 0xA5;
+	unsigned char lsb = 0xC3;
+	int retval;
+
+	/* Disable Watchdog */
+	retval = usb_pcwd_send_command(usb_pcwd, CMD_DISABLE_WATCHDOG, &msb, &lsb);
+
+	if ((retval == 0) || (lsb != 0)) {
+		printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int usb_pcwd_keepalive(struct usb_pcwd_private *usb_pcwd)
+{
+	unsigned char dummy;
+
+	/* Re-trigger Watchdog */
+	usb_pcwd_send_command(usb_pcwd, CMD_TRIGGER, &dummy, &dummy);
+
+	return 0;
+}
+
+static int usb_pcwd_set_heartbeat(struct usb_pcwd_private *usb_pcwd, int t)
+{
+	unsigned char msb = t / 256;
+	unsigned char lsb = t % 256;
+
+	if ((t < 0x0001) || (t > 0xFFFF))
+		return -EINVAL;
+
+	/* Write new heartbeat to watchdog */
+	usb_pcwd_send_command(usb_pcwd, CMD_WRITE_WATCHDOG_TIMEOUT, &msb, &lsb);
+
+	heartbeat = t;
+	return 0;
+}
+
+static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temperature)
+{
+	unsigned char msb, lsb;
+
+	usb_pcwd_send_command(usb_pcwd, CMD_READ_TEMP, &msb, &lsb);
+
+	/*
+	 * Convert celsius to fahrenheit, since this was
+	 * the decided 'standard' for this return value.
+	 */
+	*temperature = (lsb * 9 / 5) + 32;
+
+	return 0;
+}
+
+static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_left)
+{
+	unsigned char msb, lsb;
+
+	/* Read the time that's left before rebooting */
+	/* Note: if the board is not yet armed then we will read 0xFFFF */
+	usb_pcwd_send_command(usb_pcwd, CMD_READ_WATCHDOG_TIMEOUT, &msb, &lsb);
+
+	*time_left = (msb << 8) + lsb;
+
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static ssize_t usb_pcwd_write(struct file *file, const char __user *data,
+			      size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* note: just in case someone wrote the magic character
+			 * five months ago... */
+			expect_release = 0;
+
+			/* scan to see whether or not we got the magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_release = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		usb_pcwd_keepalive(usb_pcwd_device);
+	}
+	return len;
+}
+
+static long usb_pcwd_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_KEEPALIVEPING |
+					WDIOF_SETTIMEOUT |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	1,
+		.identity =		DRIVER_NAME,
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_GETTEMP:
+	{
+		int temperature;
+
+		if (usb_pcwd_get_temperature(usb_pcwd_device, &temperature))
+			return -EFAULT;
+
+		return put_user(temperature, p);
+	}
+
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+
+		if (get_user(new_options, p))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			usb_pcwd_stop(usb_pcwd_device);
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			usb_pcwd_start(usb_pcwd_device);
+			retval = 0;
+		}
+
+		return retval;
+	}
+
+	case WDIOC_KEEPALIVE:
+		usb_pcwd_keepalive(usb_pcwd_device);
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_heartbeat;
+
+		if (get_user(new_heartbeat, p))
+			return -EFAULT;
+
+		if (usb_pcwd_set_heartbeat(usb_pcwd_device, new_heartbeat))
+		    return -EINVAL;
+
+		usb_pcwd_keepalive(usb_pcwd_device);
+		/* Fall */
+	}
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+
+	case WDIOC_GETTIMELEFT:
+	{
+		int time_left;
+
+		if (usb_pcwd_get_timeleft(usb_pcwd_device, &time_left))
+			return -EFAULT;
+
+		return put_user(time_left, p);
+	}
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int usb_pcwd_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+	if (test_and_set_bit(0, &is_active))
+		return -EBUSY;
+
+	/* Activate */
+	usb_pcwd_start(usb_pcwd_device);
+	usb_pcwd_keepalive(usb_pcwd_device);
+	return nonseekable_open(inode, file);
+}
+
+static int usb_pcwd_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *      Shut off the timer.
+	 */
+	if (expect_release == 42) {
+		usb_pcwd_stop(usb_pcwd_device);
+	} else {
+		printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
+		usb_pcwd_keepalive(usb_pcwd_device);
+	}
+	expect_release = 0;
+	clear_bit(0, &is_active);
+	return 0;
+}
+
+/*
+ *	/dev/temperature handling
+ */
+
+static ssize_t usb_pcwd_temperature_read(struct file *file, char __user *data,
+				size_t len, loff_t *ppos)
+{
+	int temperature;
+
+	if (usb_pcwd_get_temperature(usb_pcwd_device, &temperature))
+		return -EFAULT;
+
+	if (copy_to_user(data, &temperature, 1))
+		return -EFAULT;
+
+	return 1;
+}
+
+static int usb_pcwd_temperature_open(struct inode *inode, struct file *file)
+{
+	return nonseekable_open(inode, file);
+}
+
+static int usb_pcwd_temperature_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+/*
+ *	Notify system
+ */
+
+static int usb_pcwd_notify_sys(struct notifier_block *this, unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		usb_pcwd_stop(usb_pcwd_device);	/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations usb_pcwd_fops = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+	.write =	usb_pcwd_write,
+	.unlocked_ioctl = usb_pcwd_ioctl,
+	.open =		usb_pcwd_open,
+	.release =	usb_pcwd_release,
+};
+
+static struct miscdevice usb_pcwd_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&usb_pcwd_fops,
+};
+
+static const struct file_operations usb_pcwd_temperature_fops = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+	.read =		usb_pcwd_temperature_read,
+	.open =		usb_pcwd_temperature_open,
+	.release =	usb_pcwd_temperature_release,
+};
+
+static struct miscdevice usb_pcwd_temperature_miscdev = {
+	.minor =	TEMP_MINOR,
+	.name =		"temperature",
+	.fops =		&usb_pcwd_temperature_fops,
+};
+
+static struct notifier_block usb_pcwd_notifier = {
+	.notifier_call =	usb_pcwd_notify_sys,
+};
+
+/**
+ *	usb_pcwd_delete
+ */
+static inline void usb_pcwd_delete(struct usb_pcwd_private *usb_pcwd)
+{
+	usb_free_urb(usb_pcwd->intr_urb);
+	if (usb_pcwd->intr_buffer != NULL)
+		usb_buffer_free(usb_pcwd->udev, usb_pcwd->intr_size,
+				usb_pcwd->intr_buffer, usb_pcwd->intr_dma);
+	kfree(usb_pcwd);
+}
+
+/**
+ *	usb_pcwd_probe
+ *
+ *	Called by the usb core when a new device is connected that it thinks
+ *	this driver might be interested in.
+ */
+static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(interface);
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	struct usb_pcwd_private *usb_pcwd = NULL;
+	int pipe, maxp;
+	int retval = -ENOMEM;
+	int got_fw_rev;
+	unsigned char fw_rev_major, fw_rev_minor;
+	char fw_ver_str[20];
+	unsigned char option_switches, dummy;
+
+	cards_found++;
+	if (cards_found > 1) {
+		printk(KERN_ERR PFX "This driver only supports 1 device\n");
+		return -ENODEV;
+	}
+
+	/* get the active interface descriptor */
+	iface_desc = interface->cur_altsetting;
+
+	/* check out that we have a HID device */
+	if (!(iface_desc->desc.bInterfaceClass == USB_CLASS_HID)) {
+		printk(KERN_ERR PFX "The device isn't a Human Interface Device\n");
+		return -ENODEV;
+	}
+
+	/* check out the endpoint: it has to be Interrupt & IN */
+	endpoint = &iface_desc->endpoint[0].desc;
+
+	if (!((endpoint->bEndpointAddress & USB_DIR_IN) &&
+	     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+				== USB_ENDPOINT_XFER_INT))) {
+		/* we didn't find a Interrupt endpoint with direction IN */
+		printk(KERN_ERR PFX "Couldn't find an INTR & IN endpoint\n");
+		return -ENODEV;
+	}
+
+	/* get a handle to the interrupt data pipe */
+	pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+	maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+
+	/* allocate memory for our device and initialize it */
+	usb_pcwd = kzalloc(sizeof(struct usb_pcwd_private), GFP_KERNEL);
+	if (usb_pcwd == NULL) {
+		printk(KERN_ERR PFX "Out of memory\n");
+		goto error;
+	}
+
+	usb_pcwd_device = usb_pcwd;
+
+	mutex_init(&usb_pcwd->mtx);
+	usb_pcwd->udev = udev;
+	usb_pcwd->interface = interface;
+	usb_pcwd->interface_number = iface_desc->desc.bInterfaceNumber;
+	usb_pcwd->intr_size = (le16_to_cpu(endpoint->wMaxPacketSize) > 8 ? le16_to_cpu(endpoint->wMaxPacketSize) : 8);
+
+	/* set up the memory buffer's */
+	usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size, GFP_ATOMIC, &usb_pcwd->intr_dma);
+	if (!usb_pcwd->intr_buffer) {
+		printk(KERN_ERR PFX "Out of memory\n");
+		goto error;
+	}
+
+	/* allocate the urb's */
+	usb_pcwd->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!usb_pcwd->intr_urb) {
+		printk(KERN_ERR PFX "Out of memory\n");
+		goto error;
+	}
+
+	/* initialise the intr urb's */
+	usb_fill_int_urb(usb_pcwd->intr_urb, udev, pipe,
+			usb_pcwd->intr_buffer, usb_pcwd->intr_size,
+			usb_pcwd_intr_done, usb_pcwd, endpoint->bInterval);
+	usb_pcwd->intr_urb->transfer_dma = usb_pcwd->intr_dma;
+	usb_pcwd->intr_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	/* register our interrupt URB with the USB system */
+	if (usb_submit_urb(usb_pcwd->intr_urb, GFP_KERNEL)) {
+		printk(KERN_ERR PFX "Problem registering interrupt URB\n");
+		retval = -EIO; /* failure */
+		goto error;
+	}
+
+	/* The device exists and can be communicated with */
+	usb_pcwd->exists = 1;
+
+	/* disable card */
+	usb_pcwd_stop(usb_pcwd);
+
+	/* Get the Firmware Version */
+	got_fw_rev = usb_pcwd_send_command(usb_pcwd, CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor);
+	if (got_fw_rev)
+		sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor);
+	else
+		sprintf(fw_ver_str, "<card no answer>");
+
+	printk(KERN_INFO PFX "Found card (Firmware: %s) with temp option\n",
+		fw_ver_str);
+
+	/* Get switch settings */
+	usb_pcwd_send_command(usb_pcwd, CMD_GET_DIP_SWITCH_SETTINGS, &dummy, &option_switches);
+
+	printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
+		option_switches,
+		((option_switches & 0x10) ? "ON" : "OFF"),
+		((option_switches & 0x08) ? "ON" : "OFF"));
+
+	/* If heartbeat = 0 then we use the heartbeat from the dip-switches */
+	if (heartbeat == 0)
+		heartbeat = heartbeat_tbl[(option_switches & 0x07)];
+
+	/* Check that the heartbeat value is within it's range ; if not reset to the default */
+	if (usb_pcwd_set_heartbeat(usb_pcwd, heartbeat)) {
+		usb_pcwd_set_heartbeat(usb_pcwd, WATCHDOG_HEARTBEAT);
+		printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n",
+			WATCHDOG_HEARTBEAT);
+	}
+
+	retval = register_reboot_notifier(&usb_pcwd_notifier);
+	if (retval != 0) {
+		printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
+			retval);
+		goto error;
+	}
+
+	retval = misc_register(&usb_pcwd_temperature_miscdev);
+	if (retval != 0) {
+		printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+			TEMP_MINOR, retval);
+		goto err_out_unregister_reboot;
+	}
+
+	retval = misc_register(&usb_pcwd_miscdev);
+	if (retval != 0) {
+		printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+			WATCHDOG_MINOR, retval);
+		goto err_out_misc_deregister;
+	}
+
+	/* we can register the device now, as it is ready */
+	usb_set_intfdata(interface, usb_pcwd);
+
+	printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+		heartbeat, nowayout);
+
+	return 0;
+
+err_out_misc_deregister:
+	misc_deregister(&usb_pcwd_temperature_miscdev);
+err_out_unregister_reboot:
+	unregister_reboot_notifier(&usb_pcwd_notifier);
+error:
+	if (usb_pcwd)
+		usb_pcwd_delete(usb_pcwd);
+	usb_pcwd_device = NULL;
+	return retval;
+}
+
+
+/**
+ *	usb_pcwd_disconnect
+ *
+ *	Called by the usb core when the device is removed from the system.
+ *
+ *	This routine guarantees that the driver will not submit any more urbs
+ *	by clearing dev->udev.
+ */
+static void usb_pcwd_disconnect(struct usb_interface *interface)
+{
+	struct usb_pcwd_private *usb_pcwd;
+
+	/* prevent races with open() */
+	mutex_lock(&disconnect_mutex);
+
+	usb_pcwd = usb_get_intfdata(interface);
+	usb_set_intfdata(interface, NULL);
+
+	mutex_lock(&usb_pcwd->mtx);
+
+	/* Stop the timer before we leave */
+	if (!nowayout)
+		usb_pcwd_stop(usb_pcwd);
+
+	/* We should now stop communicating with the USB PCWD device */
+	usb_pcwd->exists = 0;
+
+	/* Deregister */
+	misc_deregister(&usb_pcwd_miscdev);
+	misc_deregister(&usb_pcwd_temperature_miscdev);
+	unregister_reboot_notifier(&usb_pcwd_notifier);
+
+	mutex_unlock(&usb_pcwd->mtx);
+
+	/* Delete the USB PCWD device */
+	usb_pcwd_delete(usb_pcwd);
+
+	cards_found--;
+
+	mutex_unlock(&disconnect_mutex);
+
+	printk(KERN_INFO PFX "USB PC Watchdog disconnected\n");
+}
+
+
+
+/**
+ *	usb_pcwd_init
+ */
+static int __init usb_pcwd_init(void)
+{
+	int result;
+
+	/* register this driver with the USB subsystem */
+	result = usb_register(&usb_pcwd_driver);
+	if (result) {
+		printk(KERN_ERR PFX "usb_register failed. Error number %d\n",
+		    result);
+		return result;
+	}
+
+	printk(KERN_INFO PFX DRIVER_DESC " v" DRIVER_VERSION " (" DRIVER_DATE ")\n");
+	return 0;
+}
+
+
+/**
+ *	usb_pcwd_exit
+ */
+static void __exit usb_pcwd_exit(void)
+{
+	/* deregister this driver with the USB subsystem */
+	usb_deregister(&usb_pcwd_driver);
+}
+
+
+module_init(usb_pcwd_init);
+module_exit(usb_pcwd_exit);
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
new file mode 100644
index 0000000..6d9f3d4
--- /dev/null
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -0,0 +1,355 @@
+/*
+ * drivers/char/watchdog/pnx4008_wdt.c
+ *
+ * Watchdog driver for PNX4008 board
+ *
+ * Authors: Dmitry Chigirev <source@mvista.com>,
+ * 	    Vitaly Wool <vitalywool@gmail.com>
+ * Based on sa1100 driver,
+ * Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
+ *
+ * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+
+#define MODULE_NAME "PNX4008-WDT: "
+
+/* WatchDog Timer - Chapter 23 Page 207 */
+
+#define DEFAULT_HEARTBEAT 19
+#define MAX_HEARTBEAT     60
+
+/* Watchdog timer register set definition */
+#define WDTIM_INT(p)     ((p) + 0x0)
+#define WDTIM_CTRL(p)    ((p) + 0x4)
+#define WDTIM_COUNTER(p) ((p) + 0x8)
+#define WDTIM_MCTRL(p)   ((p) + 0xC)
+#define WDTIM_MATCH0(p)  ((p) + 0x10)
+#define WDTIM_EMR(p)     ((p) + 0x14)
+#define WDTIM_PULSE(p)   ((p) + 0x18)
+#define WDTIM_RES(p)     ((p) + 0x1C)
+
+/* WDTIM_INT bit definitions */
+#define MATCH_INT      1
+
+/* WDTIM_CTRL bit definitions */
+#define COUNT_ENAB     1
+#define RESET_COUNT    (1<<1)
+#define DEBUG_EN       (1<<2)
+
+/* WDTIM_MCTRL bit definitions */
+#define MR0_INT        1
+#undef  RESET_COUNT0
+#define RESET_COUNT0   (1<<2)
+#define STOP_COUNT0    (1<<2)
+#define M_RES1         (1<<3)
+#define M_RES2         (1<<4)
+#define RESFRC1        (1<<5)
+#define RESFRC2        (1<<6)
+
+/* WDTIM_EMR bit definitions */
+#define EXT_MATCH0      1
+#define MATCH_OUTPUT_HIGH (2<<4)	/*a MATCH_CTRL setting */
+
+/* WDTIM_RES bit definitions */
+#define WDOG_RESET      1	/* read only */
+
+#define WDOG_COUNTER_RATE 13000000	/*the counter clock is 13 MHz fixed */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+static int heartbeat = DEFAULT_HEARTBEAT;
+
+static DEFINE_SPINLOCK(io_lock);
+static unsigned long wdt_status;
+#define WDT_IN_USE        0
+#define WDT_OK_TO_CLOSE   1
+#define WDT_REGION_INITED 2
+#define WDT_DEVICE_INITED 3
+
+static unsigned long boot_status;
+
+static struct resource	*wdt_mem;
+static void __iomem	*wdt_base;
+struct clk		*wdt_clk;
+
+static void wdt_enable(void)
+{
+	spin_lock(&io_lock);
+
+	if (wdt_clk)
+		clk_set_rate(wdt_clk, 1);
+
+	/* stop counter, initiate counter reset */
+	__raw_writel(RESET_COUNT, WDTIM_CTRL(wdt_base));
+	/*wait for reset to complete. 100% guarantee event */
+	while (__raw_readl(WDTIM_COUNTER(wdt_base)))
+		cpu_relax();
+	/* internal and external reset, stop after that */
+	__raw_writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0,
+		WDTIM_MCTRL(wdt_base));
+	/* configure match output */
+	__raw_writel(MATCH_OUTPUT_HIGH, WDTIM_EMR(wdt_base));
+	/* clear interrupt, just in case */
+	__raw_writel(MATCH_INT, WDTIM_INT(wdt_base));
+	/* the longest pulse period 65541/(13*10^6) seconds ~ 5 ms. */
+	__raw_writel(0xFFFF, WDTIM_PULSE(wdt_base));
+	__raw_writel(heartbeat * WDOG_COUNTER_RATE, WDTIM_MATCH0(wdt_base));
+	/*enable counter, stop when debugger active */
+	__raw_writel(COUNT_ENAB | DEBUG_EN, WDTIM_CTRL(wdt_base));
+
+	spin_unlock(&io_lock);
+}
+
+static void wdt_disable(void)
+{
+	spin_lock(&io_lock);
+
+	__raw_writel(0, WDTIM_CTRL(wdt_base));	/*stop counter */
+	if (wdt_clk)
+		clk_set_rate(wdt_clk, 0);
+
+	spin_unlock(&io_lock);
+}
+
+static int pnx4008_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+		return -EBUSY;
+
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	wdt_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static ssize_t pnx4008_wdt_write(struct file *file, const char *data,
+					size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+			}
+		}
+		wdt_enable();
+	}
+
+	return len;
+}
+
+static const struct watchdog_info ident = {
+	.options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE |
+	    WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	.identity = "PNX4008 Watchdog",
+};
+
+static long pnx4008_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
+{
+	int ret = -ENOTTY;
+	int time;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user((struct watchdog_info *)arg, &ident,
+				   sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, (int *)arg);
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(boot_status, (int *)arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_enable();
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, (int *)arg);
+		if (ret)
+			break;
+
+		if (time <= 0 || time > MAX_HEARTBEAT) {
+			ret = -EINVAL;
+			break;
+		}
+
+		heartbeat = time;
+		wdt_enable();
+		/* Fall through */
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(heartbeat, (int *)arg);
+		break;
+	}
+	return ret;
+}
+
+static int pnx4008_wdt_release(struct inode *inode, struct file *file)
+{
+	if (!test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+		printk(KERN_WARNING "WATCHDOG: Device closed unexpectdly\n");
+
+	wdt_disable();
+	clear_bit(WDT_IN_USE, &wdt_status);
+	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+
+	return 0;
+}
+
+static const struct file_operations pnx4008_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = pnx4008_wdt_write,
+	.unlocked_ioctl = pnx4008_wdt_ioctl,
+	.open = pnx4008_wdt_open,
+	.release = pnx4008_wdt_release,
+};
+
+static struct miscdevice pnx4008_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &pnx4008_wdt_fops,
+};
+
+static int pnx4008_wdt_probe(struct platform_device *pdev)
+{
+	int ret = 0, size;
+	struct resource *res;
+
+	if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
+		heartbeat = DEFAULT_HEARTBEAT;
+
+	printk(KERN_INFO MODULE_NAME
+		"PNX4008 Watchdog Timer: heartbeat %d sec\n", heartbeat);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		printk(KERN_INFO MODULE_NAME
+			"failed to get memory region resouce\n");
+		return -ENOENT;
+	}
+
+	size = res->end - res->start + 1;
+	wdt_mem = request_mem_region(res->start, size, pdev->name);
+
+	if (wdt_mem == NULL) {
+		printk(KERN_INFO MODULE_NAME "failed to get memory region\n");
+		return -ENOENT;
+	}
+	wdt_base = (void __iomem *)IO_ADDRESS(res->start);
+
+	wdt_clk = clk_get(&pdev->dev, "wdt_ck");
+	if (IS_ERR(wdt_clk)) {
+		ret = PTR_ERR(wdt_clk);
+		release_resource(wdt_mem);
+		kfree(wdt_mem);
+		goto out;
+	} else
+		clk_set_rate(wdt_clk, 1);
+
+	ret = misc_register(&pnx4008_wdt_miscdev);
+	if (ret < 0) {
+		printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
+		release_resource(wdt_mem);
+		kfree(wdt_mem);
+		clk_set_rate(wdt_clk, 0);
+	} else {
+		boot_status = (__raw_readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
+		    WDIOF_CARDRESET : 0;
+		wdt_disable();		/*disable for now */
+		set_bit(WDT_DEVICE_INITED, &wdt_status);
+	}
+
+out:
+	return ret;
+}
+
+static int pnx4008_wdt_remove(struct platform_device *pdev)
+{
+	misc_deregister(&pnx4008_wdt_miscdev);
+	if (wdt_clk) {
+		clk_set_rate(wdt_clk, 0);
+		clk_put(wdt_clk);
+		wdt_clk = NULL;
+	}
+	if (wdt_mem) {
+		release_resource(wdt_mem);
+		kfree(wdt_mem);
+		wdt_mem = NULL;
+	}
+	return 0;
+}
+
+static struct platform_driver platform_wdt_driver = {
+	.driver = {
+		.name = "watchdog",
+		.owner	= THIS_MODULE,
+	},
+	.probe = pnx4008_wdt_probe,
+	.remove = pnx4008_wdt_remove,
+};
+
+static int __init pnx4008_wdt_init(void)
+{
+	return platform_driver_register(&platform_wdt_driver);
+}
+
+static void __exit pnx4008_wdt_exit(void)
+{
+	platform_driver_unregister(&platform_wdt_driver);
+}
+
+module_init(pnx4008_wdt_init);
+module_exit(pnx4008_wdt_exit);
+
+MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
+MODULE_DESCRIPTION("PNX4008 Watchdog Driver");
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+		 "Watchdog heartbeat period in seconds from 1 to "
+		 __MODULE_STRING(MAX_HEARTBEAT) ", default "
+		 __MODULE_STRING(DEFAULT_HEARTBEAT));
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		 "Set to 1 to keep watchdog running after device release");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:watchdog");
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
new file mode 100644
index 0000000..f3553fa
--- /dev/null
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -0,0 +1,315 @@
+/*
+ *  IDT Interprise 79RC32434 watchdog driver
+ *
+ *  Copyright (C) 2006, Ondrej Zajicek <santiago@crfreenet.org>
+ *  Copyright (C) 2008, Florian Fainelli <florian@openwrt.org>
+ *
+ *  based on
+ *  SoftDog 0.05:	A Software Watchdog Device
+ *
+ *  (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *					All Rights Reserved.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/reboot.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+#include <asm/mach-rc32434/integ.h>
+
+#define VERSION "0.4"
+
+static struct {
+	unsigned long inuse;
+} rc32434_wdt_device;
+
+static struct integ __iomem *wdt_reg;
+
+static int expect_close;
+
+/* Board internal clock speed in Hz,
+ * the watchdog timer ticks at. */
+extern unsigned int idt_cpu_freq;
+
+/* translate wtcompare value to seconds and vice versa */
+#define WTCOMP2SEC(x)	(x / idt_cpu_freq)
+#define SEC2WTCOMP(x)	(x * idt_cpu_freq)
+
+/* Use a default timeout of 20s. This should be
+ * safe for CPU clock speeds up to 400MHz, as
+ * ((2 ^ 32) - 1) / (400MHz / 2) = 21s.  */
+#define WATCHDOG_TIMEOUT 20
+
+static int timeout = WATCHDOG_TIMEOUT;
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+	__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/* apply or and nand masks to data read from addr and write back */
+#define SET_BITS(addr, or, nand) \
+	writel((readl(&addr) | or) & ~nand, &addr)
+
+static void rc32434_wdt_start(void)
+{
+	u32 or, nand;
+
+	/* zero the counter before enabling */
+	writel(0, &wdt_reg->wtcount);
+
+	/* don't generate a non-maskable interrupt,
+	 * do a warm reset instead */
+	nand = 1 << RC32434_ERR_WNE;
+	or = 1 << RC32434_ERR_WRE;
+
+	/* reset the ERRCS timeout bit in case it's set */
+	nand |= 1 << RC32434_ERR_WTO;
+
+	SET_BITS(wdt_reg->errcs, or, nand);
+
+	/* reset WTC timeout bit and enable WDT */
+	nand = 1 << RC32434_WTC_TO;
+	or = 1 << RC32434_WTC_EN;
+
+	SET_BITS(wdt_reg->wtc, or, nand);
+}
+
+static void rc32434_wdt_stop(void)
+{
+	/* Disable WDT */
+	SET_BITS(wdt_reg->wtc, 0, 1 << RC32434_WTC_EN);
+}
+
+static int rc32434_wdt_set(int new_timeout)
+{
+	int max_to = WTCOMP2SEC((u32)-1);
+
+	if (new_timeout < 0 || new_timeout > max_to) {
+		printk(KERN_ERR KBUILD_MODNAME
+			": timeout value must be between 0 and %d",
+			max_to);
+		return -EINVAL;
+	}
+	timeout = new_timeout;
+	writel(SEC2WTCOMP(timeout), &wdt_reg->wtcompare);
+
+	return 0;
+}
+
+static void rc32434_wdt_ping(void)
+{
+	writel(0, &wdt_reg->wtcount);
+}
+
+static int rc32434_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &rc32434_wdt_device.inuse))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	rc32434_wdt_start();
+	rc32434_wdt_ping();
+
+	return nonseekable_open(inode, file);
+}
+
+static int rc32434_wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		rc32434_wdt_stop();
+		printk(KERN_INFO KBUILD_MODNAME ": disabling watchdog timer\n");
+		module_put(THIS_MODULE);
+	} else {
+		printk(KERN_CRIT KBUILD_MODNAME
+			": device closed unexpectedly. WDT will not stop !\n");
+		rc32434_wdt_ping();
+	}
+	clear_bit(0, &rc32434_wdt_device.inuse);
+	return 0;
+}
+
+static ssize_t rc32434_wdt_write(struct file *file, const char *data,
+				size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		rc32434_wdt_ping();
+		return len;
+	}
+	return 0;
+}
+
+static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int new_timeout;
+	unsigned int value;
+	static struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_MAGICCLOSE,
+		.identity =		"RC32434_WDT Watchdog",
+	};
+	switch (cmd) {
+	case WDIOC_KEEPALIVE:
+		rc32434_wdt_ping();
+		break;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		value = 0;
+		if (copy_to_user(argp, &value, sizeof(int)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_SETOPTIONS:
+		if (copy_from_user(&value, argp, sizeof(int)))
+			return -EFAULT;
+		switch (value) {
+		case WDIOS_ENABLECARD:
+			rc32434_wdt_start();
+			break;
+		case WDIOS_DISABLECARD:
+			rc32434_wdt_stop();
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case WDIOC_SETTIMEOUT:
+		if (copy_from_user(&new_timeout, argp, sizeof(int)))
+			return -EFAULT;
+		if (rc32434_wdt_set(new_timeout))
+			return -EINVAL;
+		/* Fall through */
+	case WDIOC_GETTIMEOUT:
+		return copy_to_user(argp, &timeout, sizeof(int));
+	default:
+		return -ENOTTY;
+	}
+
+	return 0;
+}
+
+static struct file_operations rc32434_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= rc32434_wdt_write,
+	.unlocked_ioctl	= rc32434_wdt_ioctl,
+	.open		= rc32434_wdt_open,
+	.release	= rc32434_wdt_release,
+};
+
+static struct miscdevice rc32434_wdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &rc32434_wdt_fops,
+};
+
+static char banner[] __devinitdata = KERN_INFO KBUILD_MODNAME
+		": Watchdog Timer version " VERSION ", timer margin: %d sec\n";
+
+static int __devinit rc32434_wdt_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct resource *r;
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rb532_wdt_res");
+	if (!r) {
+		printk(KERN_ERR KBUILD_MODNAME
+			"failed to retrieve resources\n");
+		return -ENODEV;
+	}
+
+	wdt_reg = ioremap_nocache(r->start, r->end - r->start);
+	if (!wdt_reg) {
+		printk(KERN_ERR KBUILD_MODNAME
+			"failed to remap I/O resources\n");
+		return -ENXIO;
+	}
+
+	ret = misc_register(&rc32434_wdt_miscdev);
+	if (ret < 0) {
+		printk(KERN_ERR KBUILD_MODNAME
+			"failed to register watchdog device\n");
+		goto unmap;
+	}
+
+	printk(banner, timeout);
+
+	return 0;
+
+unmap:
+	iounmap(wdt_reg);
+	return ret;
+}
+
+static int __devexit rc32434_wdt_remove(struct platform_device *pdev)
+{
+	misc_deregister(&rc32434_wdt_miscdev);
+	iounmap(wdt_reg);
+	return 0;
+}
+
+static struct platform_driver rc32434_wdt = {
+	.probe	= rc32434_wdt_probe,
+	.remove	= __devexit_p(rc32434_wdt_remove),
+	.driver	= {
+		.name = "rc32434_wdt",
+	}
+};
+
+static int __init rc32434_wdt_init(void)
+{
+	return platform_driver_register(&rc32434_wdt);
+}
+
+static void __exit rc32434_wdt_exit(void)
+{
+	platform_driver_unregister(&rc32434_wdt);
+}
+
+module_init(rc32434_wdt_init);
+module_exit(rc32434_wdt_exit);
+
+MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>,"
+		"Florian Fainelli <florian@openwrt.org>");
+MODULE_DESCRIPTION("Driver for the IDT RC32434 SoC watchdog");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
new file mode 100644
index 0000000..bf92802
--- /dev/null
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -0,0 +1,285 @@
+/*
+ * RDC321x watchdog driver
+ *
+ * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *
+ * This driver is highly inspired from the cpu5_wdt driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/mach-rdc321x/rdc321x_defs.h>
+
+#define RDC_WDT_MASK	0x80000000 /* Mask */
+#define RDC_WDT_EN	0x00800000 /* Enable bit */
+#define RDC_WDT_WTI	0x00200000 /* Generate CPU reset/NMI/WDT on timeout */
+#define RDC_WDT_RST	0x00100000 /* Reset bit */
+#define RDC_WDT_WIF	0x00040000 /* WDT IRQ Flag */
+#define RDC_WDT_IRT	0x00000100 /* IRQ Routing table */
+#define RDC_WDT_CNT	0x00000001 /* WDT count */
+
+#define RDC_CLS_TMR	0x80003844 /* Clear timer */
+
+#define RDC_WDT_INTERVAL	(HZ/10+1)
+
+static int ticks = 1000;
+
+/* some device data */
+
+static struct {
+	struct completion stop;
+	int running;
+	struct timer_list timer;
+	int queue;
+	int default_ticks;
+	unsigned long inuse;
+	spinlock_t lock;
+} rdc321x_wdt_device;
+
+/* generic helper functions */
+
+static void rdc321x_wdt_trigger(unsigned long unused)
+{
+	unsigned long flags;
+
+	if (rdc321x_wdt_device.running)
+		ticks--;
+
+	/* keep watchdog alive */
+	spin_lock_irqsave(&rdc321x_wdt_device.lock, flags);
+	outl(RDC_WDT_EN | inl(RDC3210_CFGREG_DATA),
+		RDC3210_CFGREG_DATA);
+	spin_unlock_irqrestore(&rdc321x_wdt_device.lock, flags);
+
+	/* requeue?? */
+	if (rdc321x_wdt_device.queue && ticks)
+		mod_timer(&rdc321x_wdt_device.timer,
+				jiffies + RDC_WDT_INTERVAL);
+	else {
+		/* ticks doesn't matter anyway */
+		complete(&rdc321x_wdt_device.stop);
+	}
+
+}
+
+static void rdc321x_wdt_reset(void)
+{
+	ticks = rdc321x_wdt_device.default_ticks;
+}
+
+static void rdc321x_wdt_start(void)
+{
+	unsigned long flags;
+
+	if (!rdc321x_wdt_device.queue) {
+		rdc321x_wdt_device.queue = 1;
+
+		/* Clear the timer */
+		spin_lock_irqsave(&rdc321x_wdt_device.lock, flags);
+		outl(RDC_CLS_TMR, RDC3210_CFGREG_ADDR);
+
+		/* Enable watchdog and set the timeout to 81.92 us */
+		outl(RDC_WDT_EN | RDC_WDT_CNT, RDC3210_CFGREG_DATA);
+		spin_unlock_irqrestore(&rdc321x_wdt_device.lock, flags);
+
+		mod_timer(&rdc321x_wdt_device.timer,
+				jiffies + RDC_WDT_INTERVAL);
+	}
+
+	/* if process dies, counter is not decremented */
+	rdc321x_wdt_device.running++;
+}
+
+static int rdc321x_wdt_stop(void)
+{
+	if (rdc321x_wdt_device.running)
+		rdc321x_wdt_device.running = 0;
+
+	ticks = rdc321x_wdt_device.default_ticks;
+
+	return -EIO;
+}
+
+/* filesystem operations */
+static int rdc321x_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &rdc321x_wdt_device.inuse))
+		return -EBUSY;
+
+	return nonseekable_open(inode, file);
+}
+
+static int rdc321x_wdt_release(struct inode *inode, struct file *file)
+{
+	clear_bit(0, &rdc321x_wdt_device.inuse);
+	return 0;
+}
+
+static long rdc321x_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	unsigned int value;
+	static struct watchdog_info ident = {
+		.options = WDIOF_CARDRESET,
+		.identity = "RDC321x WDT",
+	};
+	unsigned long flags;
+
+	switch (cmd) {
+	case WDIOC_KEEPALIVE:
+		rdc321x_wdt_reset();
+		break;
+	case WDIOC_GETSTATUS:
+		/* Read the value from the DATA register */
+		spin_lock_irqsave(&rdc321x_wdt_device.lock, flags);
+		value = inl(RDC3210_CFGREG_DATA);
+		spin_unlock_irqrestore(&rdc321x_wdt_device.lock, flags);
+		if (copy_to_user(argp, &value, sizeof(int)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_SETOPTIONS:
+		if (copy_from_user(&value, argp, sizeof(int)))
+			return -EFAULT;
+		switch (value) {
+		case WDIOS_ENABLECARD:
+			rdc321x_wdt_start();
+			break;
+		case WDIOS_DISABLECARD:
+			return rdc321x_wdt_stop();
+		default:
+			return -EINVAL;
+		}
+		break;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static ssize_t rdc321x_wdt_write(struct file *file, const char __user *buf,
+				size_t count, loff_t *ppos)
+{
+	if (!count)
+		return -EIO;
+
+	rdc321x_wdt_reset();
+
+	return count;
+}
+
+static const struct file_operations rdc321x_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl	= rdc321x_wdt_ioctl,
+	.open		= rdc321x_wdt_open,
+	.write		= rdc321x_wdt_write,
+	.release	= rdc321x_wdt_release,
+};
+
+static struct miscdevice rdc321x_wdt_misc = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &rdc321x_wdt_fops,
+};
+
+static int __devinit rdc321x_wdt_probe(struct platform_device *pdev)
+{
+	int err;
+
+	err = misc_register(&rdc321x_wdt_misc);
+	if (err < 0) {
+		printk(KERN_ERR PFX "watchdog misc_register failed\n");
+		return err;
+	}
+
+	spin_lock_init(&rdc321x_wdt_device.lock);
+
+	/* Reset the watchdog */
+	outl(RDC_WDT_RST, RDC3210_CFGREG_DATA);
+
+	init_completion(&rdc321x_wdt_device.stop);
+	rdc321x_wdt_device.queue = 0;
+
+	clear_bit(0, &rdc321x_wdt_device.inuse);
+
+	setup_timer(&rdc321x_wdt_device.timer, rdc321x_wdt_trigger, 0);
+
+	rdc321x_wdt_device.default_ticks = ticks;
+
+	printk(KERN_INFO PFX "watchdog init success\n");
+
+	return 0;
+}
+
+static int rdc321x_wdt_remove(struct platform_device *pdev)
+{
+	if (rdc321x_wdt_device.queue) {
+		rdc321x_wdt_device.queue = 0;
+		wait_for_completion(&rdc321x_wdt_device.stop);
+	}
+
+	misc_deregister(&rdc321x_wdt_misc);
+
+	return 0;
+}
+
+static struct platform_driver rdc321x_wdt_driver = {
+	.probe = rdc321x_wdt_probe,
+	.remove = rdc321x_wdt_remove,
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "rdc321x-wdt",
+	},
+};
+
+static int __init rdc321x_wdt_init(void)
+{
+	return platform_driver_register(&rdc321x_wdt_driver);
+}
+
+static void __exit rdc321x_wdt_exit(void)
+{
+	platform_driver_unregister(&rdc321x_wdt_driver);
+}
+
+module_init(rdc321x_wdt_init);
+module_exit(rdc321x_wdt_exit);
+
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_DESCRIPTION("RDC321x watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
new file mode 100644
index 0000000..09cb183
--- /dev/null
+++ b/drivers/watchdog/riowd.c
@@ -0,0 +1,259 @@
+/* riowd.c - driver for hw watchdog inside Super I/O of RIO
+ *
+ * Copyright (C) 2001, 2008 David S. Miller (davem@davemloft.net)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/smp_lock.h>
+#include <linux/watchdog.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+
+/* RIO uses the NatSemi Super I/O power management logical device
+ * as its' watchdog.
+ *
+ * When the watchdog triggers, it asserts a line to the BBC (Boot Bus
+ * Controller) of the machine.  The BBC can only be configured to
+ * trigger a power-on reset when the signal is asserted.  The BBC
+ * can be configured to ignore the signal entirely as well.
+ *
+ * The only Super I/O device register we care about is at index
+ * 0x05 (WDTO_INDEX) which is the watchdog time-out in minutes (1-255).
+ * If set to zero, this disables the watchdog.  When set, the system
+ * must periodically (before watchdog expires) clear (set to zero) and
+ * re-set the watchdog else it will trigger.
+ *
+ * There are two other indexed watchdog registers inside this Super I/O
+ * logical device, but they are unused.  The first, at index 0x06 is
+ * the watchdog control and can be used to make the watchdog timer re-set
+ * when the PS/2 mouse or serial lines show activity.  The second, at
+ * index 0x07 is merely a sampling of the line from the watchdog to the
+ * BBC.
+ *
+ * The watchdog device generates no interrupts.
+ */
+
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_DESCRIPTION("Hardware watchdog driver for Sun RIO");
+MODULE_SUPPORTED_DEVICE("watchdog");
+MODULE_LICENSE("GPL");
+
+#define DRIVER_NAME	"riowd"
+#define PFX		DRIVER_NAME ": "
+
+struct riowd {
+	void __iomem		*regs;
+	spinlock_t		lock;
+};
+
+static struct riowd *riowd_device;
+
+#define WDTO_INDEX	0x05
+
+static int riowd_timeout = 1;		/* in minutes */
+module_param(riowd_timeout, int, 0);
+MODULE_PARM_DESC(riowd_timeout, "Watchdog timeout in minutes");
+
+static void riowd_writereg(struct riowd *p, u8 val, int index)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&p->lock, flags);
+	writeb(index, p->regs + 0);
+	writeb(val, p->regs + 1);
+	spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static int riowd_open(struct inode *inode, struct file *filp)
+{
+	cycle_kernel_lock();
+	nonseekable_open(inode, filp);
+	return 0;
+}
+
+static int riowd_release(struct inode *inode, struct file *filp)
+{
+	return 0;
+}
+
+static int riowd_ioctl(struct inode *inode, struct file *filp,
+		       unsigned int cmd, unsigned long arg)
+{
+	static struct watchdog_info info = {
+		.options		= WDIOF_SETTIMEOUT,
+		.firmware_version	= 1,
+		.identity		= DRIVER_NAME,
+	};
+	void __user *argp = (void __user *)arg;
+	struct riowd *p = riowd_device;
+	unsigned int options;
+	int new_margin;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &info, sizeof(info)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		if (put_user(0, (int __user *)argp))
+			return -EFAULT;
+		break;
+
+	case WDIOC_KEEPALIVE:
+		riowd_writereg(p, riowd_timeout, WDTO_INDEX);
+		break;
+
+	case WDIOC_SETOPTIONS:
+		if (copy_from_user(&options, argp, sizeof(options)))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD)
+			riowd_writereg(p, 0, WDTO_INDEX);
+		else if (options & WDIOS_ENABLECARD)
+			riowd_writereg(p, riowd_timeout, WDTO_INDEX);
+		else
+			return -EINVAL;
+
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, (int __user *)argp))
+			return -EFAULT;
+		if ((new_margin < 60) || (new_margin > (255 * 60)))
+			return -EINVAL;
+		riowd_timeout = (new_margin + 59) / 60;
+		riowd_writereg(p, riowd_timeout, WDTO_INDEX);
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(riowd_timeout * 60, (int __user *)argp);
+
+	default:
+		return -EINVAL;
+	};
+
+	return 0;
+}
+
+static ssize_t riowd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
+{
+	struct riowd *p = riowd_device;
+
+	if (count) {
+		riowd_writereg(p, riowd_timeout, WDTO_INDEX);
+		return 1;
+	}
+
+	return 0;
+}
+
+static const struct file_operations riowd_fops = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+	.ioctl =	riowd_ioctl,
+	.open =		riowd_open,
+	.write =	riowd_write,
+	.release =	riowd_release,
+};
+
+static struct miscdevice riowd_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &riowd_fops
+};
+
+static int __devinit riowd_probe(struct of_device *op,
+				 const struct of_device_id *match)
+{
+	struct riowd *p;
+	int err = -EINVAL;
+
+	if (riowd_device)
+		goto out;
+
+	err = -ENOMEM;
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	if (!p)
+		goto out;
+
+	spin_lock_init(&p->lock);
+
+	p->regs = of_ioremap(&op->resource[0], 0, 2, DRIVER_NAME);
+	if (!p->regs) {
+		printk(KERN_ERR PFX "Cannot map registers.\n");
+		goto out_free;
+	}
+
+	err = misc_register(&riowd_miscdev);
+	if (err) {
+		printk(KERN_ERR PFX "Cannot register watchdog misc device.\n");
+		goto out_iounmap;
+	}
+
+	printk(KERN_INFO PFX "Hardware watchdog [%i minutes], "
+	       "regs at %p\n", riowd_timeout, p->regs);
+
+	dev_set_drvdata(&op->dev, p);
+	riowd_device = p;
+	err = 0;
+
+out_iounmap:
+	of_iounmap(&op->resource[0], p->regs, 2);
+
+out_free:
+	kfree(p);
+
+out:
+	return err;
+}
+
+static int __devexit riowd_remove(struct of_device *op)
+{
+	struct riowd *p = dev_get_drvdata(&op->dev);
+
+	misc_deregister(&riowd_miscdev);
+	of_iounmap(&op->resource[0], p->regs, 2);
+	kfree(p);
+
+	return 0;
+}
+
+static const struct of_device_id riowd_match[] = {
+	{
+		.name = "pmc",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, riowd_match);
+
+static struct of_platform_driver riowd_driver = {
+	.name		= DRIVER_NAME,
+	.match_table	= riowd_match,
+	.probe		= riowd_probe,
+	.remove		= __devexit_p(riowd_remove),
+};
+
+static int __init riowd_init(void)
+{
+	return of_register_driver(&riowd_driver, &of_bus_type);
+}
+
+static void __exit riowd_exit(void)
+{
+	of_unregister_driver(&riowd_driver);
+}
+
+module_init(riowd_init);
+module_exit(riowd_exit);
diff --git a/drivers/watchdog/rm9k_wdt.c b/drivers/watchdog/rm9k_wdt.c
new file mode 100644
index 0000000..f1ae372
--- /dev/null
+++ b/drivers/watchdog/rm9k_wdt.c
@@ -0,0 +1,422 @@
+/*
+ *  Watchdog implementation for GPI h/w found on PMC-Sierra RM9xxx
+ *  chips.
+ *
+ *  Copyright (C) 2004 by Basler Vision Technologies AG
+ *  Author: Thomas Koeller <thomas.koeller@baslerweb.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/notifier.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <asm/atomic.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/rm9k-ocd.h>
+
+#include <rm9k_wdt.h>
+
+
+#define CLOCK                  125000000
+#define MAX_TIMEOUT_SECONDS    32
+#define CPCCR                  0x0080
+#define CPGIG1SR               0x0044
+#define CPGIG1ER               0x0054
+
+
+/* Function prototypes */
+static irqreturn_t wdt_gpi_irqhdl(int, void *);
+static void wdt_gpi_start(void);
+static void wdt_gpi_stop(void);
+static void wdt_gpi_set_timeout(unsigned int);
+static int wdt_gpi_open(struct inode *, struct file *);
+static int wdt_gpi_release(struct inode *, struct file *);
+static ssize_t wdt_gpi_write(struct file *, const char __user *, size_t,
+								loff_t *);
+static long wdt_gpi_ioctl(struct file *, unsigned int, unsigned long);
+static int wdt_gpi_notify(struct notifier_block *, unsigned long, void *);
+static const struct resource *wdt_gpi_get_resource(struct platform_device *,
+						const char *, unsigned int);
+static int __init wdt_gpi_probe(struct device *);
+static int __exit wdt_gpi_remove(struct device *);
+
+
+static const char wdt_gpi_name[] = "wdt_gpi";
+static atomic_t opencnt;
+static int expect_close;
+static int locked;
+
+
+/* These are set from device resources */
+static void __iomem *wd_regs;
+static unsigned int wd_irq, wd_ctr;
+
+
+/* Module arguments */
+static int timeout = MAX_TIMEOUT_SECONDS;
+module_param(timeout, int, 0444);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds");
+
+static unsigned long resetaddr = 0xbffdc200;
+module_param(resetaddr, ulong, 0444);
+MODULE_PARM_DESC(resetaddr, "Address to write to to force a reset");
+
+static unsigned long flagaddr = 0xbffdc104;
+module_param(flagaddr, ulong, 0444);
+MODULE_PARM_DESC(flagaddr, "Address to write to boot flags to");
+
+static int powercycle;
+module_param(powercycle, bool, 0444);
+MODULE_PARM_DESC(powercycle, "Cycle power if watchdog expires");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0444);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be disabled once started");
+
+
+/* Kernel interfaces */
+static const struct file_operations fops = {
+	.owner		= THIS_MODULE,
+	.open		= wdt_gpi_open,
+	.release	= wdt_gpi_release,
+	.write		= wdt_gpi_write,
+	.unlocked_ioctl	= wdt_gpi_ioctl,
+};
+
+static struct miscdevice miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= wdt_gpi_name,
+	.fops		= &fops,
+};
+
+static struct notifier_block wdt_gpi_shutdown = {
+	.notifier_call	= wdt_gpi_notify,
+};
+
+
+/* Interrupt handler */
+static irqreturn_t wdt_gpi_irqhdl(int irq, void *ctxt)
+{
+	if (!unlikely(__raw_readl(wd_regs + 0x0008) & 0x1))
+		return IRQ_NONE;
+	__raw_writel(0x1, wd_regs + 0x0008);
+
+
+	printk(KERN_CRIT "%s: watchdog expired - resetting system\n",
+		wdt_gpi_name);
+
+	*(volatile char *) flagaddr |= 0x01;
+	*(volatile char *) resetaddr = powercycle ? 0x01 : 0x2;
+	iob();
+	while (1)
+		cpu_relax();
+}
+
+
+/* Watchdog functions */
+static void wdt_gpi_start(void)
+{
+	u32 reg;
+
+	lock_titan_regs();
+	reg = titan_readl(CPGIG1ER);
+	titan_writel(reg | (0x100 << wd_ctr), CPGIG1ER);
+	iob();
+	unlock_titan_regs();
+}
+
+static void wdt_gpi_stop(void)
+{
+	u32 reg;
+
+	lock_titan_regs();
+	reg = titan_readl(CPCCR) & ~(0xf << (wd_ctr * 4));
+	titan_writel(reg, CPCCR);
+	reg = titan_readl(CPGIG1ER);
+	titan_writel(reg & ~(0x100 << wd_ctr), CPGIG1ER);
+	iob();
+	unlock_titan_regs();
+}
+
+static void wdt_gpi_set_timeout(unsigned int to)
+{
+	u32 reg;
+	const u32 wdval = (to * CLOCK) & ~0x0000000f;
+
+	lock_titan_regs();
+	reg = titan_readl(CPCCR) & ~(0xf << (wd_ctr * 4));
+	titan_writel(reg, CPCCR);
+	wmb();
+	__raw_writel(wdval, wd_regs + 0x0000);
+	wmb();
+	titan_writel(reg | (0x2 << (wd_ctr * 4)), CPCCR);
+	wmb();
+	titan_writel(reg | (0x5 << (wd_ctr * 4)), CPCCR);
+	iob();
+	unlock_titan_regs();
+}
+
+
+/* /dev/watchdog operations */
+static int wdt_gpi_open(struct inode *inode, struct file *file)
+{
+	int res;
+
+	if (unlikely(atomic_dec_if_positive(&opencnt) < 0))
+		return -EBUSY;
+
+	expect_close = 0;
+	if (locked) {
+		module_put(THIS_MODULE);
+		free_irq(wd_irq, &miscdev);
+		locked = 0;
+	}
+
+	res = request_irq(wd_irq, wdt_gpi_irqhdl, IRQF_SHARED | IRQF_DISABLED,
+			  wdt_gpi_name, &miscdev);
+	if (unlikely(res))
+		return res;
+
+	wdt_gpi_set_timeout(timeout);
+	wdt_gpi_start();
+
+	printk(KERN_INFO "%s: watchdog started, timeout = %u seconds\n",
+		wdt_gpi_name, timeout);
+	return nonseekable_open(inode, file);
+}
+
+static int wdt_gpi_release(struct inode *inode, struct file *file)
+{
+	if (nowayout) {
+		printk(KERN_INFO "%s: no way out - watchdog left running\n",
+			wdt_gpi_name);
+		__module_get(THIS_MODULE);
+		locked = 1;
+	} else {
+		if (expect_close) {
+			wdt_gpi_stop();
+			free_irq(wd_irq, &miscdev);
+			printk(KERN_INFO "%s: watchdog stopped\n",
+							wdt_gpi_name);
+		} else {
+			printk(KERN_CRIT "%s: unexpected close() -"
+				" watchdog left running\n",
+				wdt_gpi_name);
+			wdt_gpi_set_timeout(timeout);
+			__module_get(THIS_MODULE);
+			locked = 1;
+		}
+	}
+
+	atomic_inc(&opencnt);
+	return 0;
+}
+
+static ssize_t wdt_gpi_write(struct file *f, const char __user *d, size_t s,
+								loff_t *o)
+{
+	char val;
+
+	wdt_gpi_set_timeout(timeout);
+	expect_close = (s > 0) && !get_user(val, d) && (val == 'V');
+	return s ? 1 : 0;
+}
+
+static long wdt_gpi_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
+{
+	long res = -ENOTTY;
+	const long size = _IOC_SIZE(cmd);
+	int stat;
+	void __user *argp = (void __user *)arg;
+	static struct watchdog_info wdinfo = {
+		.identity               = "RM9xxx/GPI watchdog",
+		.firmware_version       = 0,
+		.options                = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING
+	};
+
+	if (unlikely(_IOC_TYPE(cmd) != WATCHDOG_IOCTL_BASE))
+		return -ENOTTY;
+
+	if ((_IOC_DIR(cmd) & _IOC_READ)
+	    && !access_ok(VERIFY_WRITE, arg, size))
+		return -EFAULT;
+
+	if ((_IOC_DIR(cmd) & _IOC_WRITE)
+	    && !access_ok(VERIFY_READ, arg, size))
+		return -EFAULT;
+
+	expect_close = 0;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		wdinfo.options = nowayout ?
+			WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING :
+			WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
+			WDIOF_MAGICCLOSE;
+		res = __copy_to_user(argp, &wdinfo, size) ?  -EFAULT : size;
+		break;
+
+	case WDIOC_GETSTATUS:
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		stat = (*(volatile char *) flagaddr & 0x01)
+			? WDIOF_CARDRESET : 0;
+		res = __copy_to_user(argp, &stat, size) ?
+			-EFAULT : size;
+		break;
+
+	case WDIOC_SETOPTIONS:
+		break;
+
+	case WDIOC_KEEPALIVE:
+		wdt_gpi_set_timeout(timeout);
+		res = size;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		{
+			int val;
+			if (unlikely(__copy_from_user(&val, argp, size))) {
+				res = -EFAULT;
+				break;
+			}
+
+			if (val > MAX_TIMEOUT_SECONDS)
+				val = MAX_TIMEOUT_SECONDS;
+			timeout = val;
+			wdt_gpi_set_timeout(val);
+			res = size;
+			printk(KERN_INFO "%s: timeout set to %u seconds\n",
+				wdt_gpi_name, timeout);
+		}
+		break;
+
+	case WDIOC_GETTIMEOUT:
+		res = __copy_to_user(argp, &timeout, size) ?
+			-EFAULT : size;
+		break;
+	}
+
+	return res;
+}
+
+
+/* Shutdown notifier */
+static int wdt_gpi_notify(struct notifier_block *this, unsigned long code,
+			  void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_gpi_stop();
+
+	return NOTIFY_DONE;
+}
+
+
+/* Init & exit procedures */
+static const struct resource *wdt_gpi_get_resource(struct platform_device *pdv,
+					const char *name, unsigned int type)
+{
+	char buf[80];
+	if (snprintf(buf, sizeof buf, "%s_0", name) >= sizeof buf)
+		return NULL;
+	return platform_get_resource_byname(pdv, type, buf);
+}
+
+/* No hotplugging on the platform bus - use __init */
+static int __init wdt_gpi_probe(struct device *dev)
+{
+	int res;
+	struct platform_device * const pdv = to_platform_device(dev);
+	const struct resource
+		* const rr = wdt_gpi_get_resource(pdv, WDT_RESOURCE_REGS,
+						  IORESOURCE_MEM),
+		* const ri = wdt_gpi_get_resource(pdv, WDT_RESOURCE_IRQ,
+						  IORESOURCE_IRQ),
+		* const rc = wdt_gpi_get_resource(pdv, WDT_RESOURCE_COUNTER,
+						  0);
+
+	if (unlikely(!rr || !ri || !rc))
+		return -ENXIO;
+
+	wd_regs = ioremap_nocache(rr->start, rr->end + 1 - rr->start);
+	if (unlikely(!wd_regs))
+		return -ENOMEM;
+	wd_irq = ri->start;
+	wd_ctr = rc->start;
+	res = misc_register(&miscdev);
+	if (res)
+		iounmap(wd_regs);
+	else
+		register_reboot_notifier(&wdt_gpi_shutdown);
+	return res;
+}
+
+static int __exit wdt_gpi_remove(struct device *dev)
+{
+	int res;
+
+	unregister_reboot_notifier(&wdt_gpi_shutdown);
+	res = misc_deregister(&miscdev);
+	iounmap(wd_regs);
+	wd_regs = NULL;
+	return res;
+}
+
+
+/* Device driver init & exit */
+static struct device_driver wdt_gpi_driver = {
+	.name		= (char *) wdt_gpi_name,
+	.bus		= &platform_bus_type,
+	.owner		= THIS_MODULE,
+	.probe		= wdt_gpi_probe,
+	.remove		= __exit_p(wdt_gpi_remove),
+	.shutdown	= NULL,
+	.suspend	= NULL,
+	.resume		= NULL,
+};
+
+static int __init wdt_gpi_init_module(void)
+{
+	atomic_set(&opencnt, 1);
+	if (timeout > MAX_TIMEOUT_SECONDS)
+		timeout = MAX_TIMEOUT_SECONDS;
+	return driver_register(&wdt_gpi_driver);
+}
+
+static void __exit wdt_gpi_cleanup_module(void)
+{
+	driver_unregister(&wdt_gpi_driver);
+}
+
+module_init(wdt_gpi_init_module);
+module_exit(wdt_gpi_cleanup_module);
+
+MODULE_AUTHOR("Thomas Koeller <thomas.koeller@baslerweb.com>");
+MODULE_DESCRIPTION("Basler eXcite watchdog driver for gpi devices");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
new file mode 100644
index 0000000..f7f6ce8
--- /dev/null
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -0,0 +1,551 @@
+/* linux/drivers/char/watchdog/s3c2410_wdt.c
+ *
+ * Copyright (c) 2004 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 Watchdog Timer Support
+ *
+ * Based on, softdog.c by Alan Cox,
+ *     (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+
+#undef S3C_VA_WATCHDOG
+#define S3C_VA_WATCHDOG (0)
+
+#include <asm/plat-s3c/regs-watchdog.h>
+
+#define PFX "s3c2410-wdt: "
+
+#define CONFIG_S3C2410_WATCHDOG_ATBOOT		(0)
+#define CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME	(15)
+
+static int nowayout	= WATCHDOG_NOWAYOUT;
+static int tmr_margin	= CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME;
+static int tmr_atboot	= CONFIG_S3C2410_WATCHDOG_ATBOOT;
+static int soft_noboot;
+static int debug;
+
+module_param(tmr_margin,  int, 0);
+module_param(tmr_atboot,  int, 0);
+module_param(nowayout,    int, 0);
+module_param(soft_noboot, int, 0);
+module_param(debug,	  int, 0);
+
+MODULE_PARM_DESC(tmr_margin, "Watchdog tmr_margin in seconds. default="
+		__MODULE_STRING(CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME) ")");
+MODULE_PARM_DESC(tmr_atboot,
+		"Watchdog is started at boot time if set to 1, default="
+			__MODULE_STRING(CONFIG_S3C2410_WATCHDOG_ATBOOT));
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+MODULE_PARM_DESC(soft_noboot, "Watchdog action, set to 1 to ignore reboots, 0 to reboot (default depends on ONLY_TESTING)");
+MODULE_PARM_DESC(debug, "Watchdog debug, set to >1 for debug, (default 0)");
+
+
+typedef enum close_state {
+	CLOSE_STATE_NOT,
+	CLOSE_STATE_ALLOW = 0x4021
+} close_state_t;
+
+static unsigned long open_lock;
+static struct device    *wdt_dev;	/* platform device attached to */
+static struct resource	*wdt_mem;
+static struct resource	*wdt_irq;
+static struct clk	*wdt_clock;
+static void __iomem	*wdt_base;
+static unsigned int	 wdt_count;
+static close_state_t	 allow_close;
+static DEFINE_SPINLOCK(wdt_lock);
+
+/* watchdog control routines */
+
+#define DBG(msg...) do { \
+	if (debug) \
+		printk(KERN_INFO msg); \
+	} while (0)
+
+/* functions */
+
+static void s3c2410wdt_keepalive(void)
+{
+	spin_lock(&wdt_lock);
+	writel(wdt_count, wdt_base + S3C2410_WTCNT);
+	spin_unlock(&wdt_lock);
+}
+
+static void __s3c2410wdt_stop(void)
+{
+	unsigned long wtcon;
+
+	wtcon = readl(wdt_base + S3C2410_WTCON);
+	wtcon &= ~(S3C2410_WTCON_ENABLE | S3C2410_WTCON_RSTEN);
+	writel(wtcon, wdt_base + S3C2410_WTCON);
+}
+
+static void s3c2410wdt_stop(void)
+{
+	spin_lock(&wdt_lock);
+	__s3c2410wdt_stop();
+	spin_unlock(&wdt_lock);
+}
+
+static void s3c2410wdt_start(void)
+{
+	unsigned long wtcon;
+
+	spin_lock(&wdt_lock);
+
+	__s3c2410wdt_stop();
+
+	wtcon = readl(wdt_base + S3C2410_WTCON);
+	wtcon |= S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128;
+
+	if (soft_noboot) {
+		wtcon |= S3C2410_WTCON_INTEN;
+		wtcon &= ~S3C2410_WTCON_RSTEN;
+	} else {
+		wtcon &= ~S3C2410_WTCON_INTEN;
+		wtcon |= S3C2410_WTCON_RSTEN;
+	}
+
+	DBG("%s: wdt_count=0x%08x, wtcon=%08lx\n",
+	    __func__, wdt_count, wtcon);
+
+	writel(wdt_count, wdt_base + S3C2410_WTDAT);
+	writel(wdt_count, wdt_base + S3C2410_WTCNT);
+	writel(wtcon, wdt_base + S3C2410_WTCON);
+	spin_unlock(&wdt_lock);
+}
+
+static int s3c2410wdt_set_heartbeat(int timeout)
+{
+	unsigned int freq = clk_get_rate(wdt_clock);
+	unsigned int count;
+	unsigned int divisor = 1;
+	unsigned long wtcon;
+
+	if (timeout < 1)
+		return -EINVAL;
+
+	freq /= 128;
+	count = timeout * freq;
+
+	DBG("%s: count=%d, timeout=%d, freq=%d\n",
+	    __func__, count, timeout, freq);
+
+	/* if the count is bigger than the watchdog register,
+	   then work out what we need to do (and if) we can
+	   actually make this value
+	*/
+
+	if (count >= 0x10000) {
+		for (divisor = 1; divisor <= 0x100; divisor++) {
+			if ((count / divisor) < 0x10000)
+				break;
+		}
+
+		if ((count / divisor) >= 0x10000) {
+			dev_err(wdt_dev, "timeout %d too big\n", timeout);
+			return -EINVAL;
+		}
+	}
+
+	tmr_margin = timeout;
+
+	DBG("%s: timeout=%d, divisor=%d, count=%d (%08x)\n",
+	    __func__, timeout, divisor, count, count/divisor);
+
+	count /= divisor;
+	wdt_count = count;
+
+	/* update the pre-scaler */
+	wtcon = readl(wdt_base + S3C2410_WTCON);
+	wtcon &= ~S3C2410_WTCON_PRESCALE_MASK;
+	wtcon |= S3C2410_WTCON_PRESCALE(divisor-1);
+
+	writel(count, wdt_base + S3C2410_WTDAT);
+	writel(wtcon, wdt_base + S3C2410_WTCON);
+
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static int s3c2410wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &open_lock))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	allow_close = CLOSE_STATE_NOT;
+
+	/* start the timer */
+	s3c2410wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+static int s3c2410wdt_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *	Shut off the timer.
+	 * 	Lock it in if it's a module and we set nowayout
+	 */
+
+	if (allow_close == CLOSE_STATE_ALLOW)
+		s3c2410wdt_stop();
+	else {
+		dev_err(wdt_dev, "Unexpected close, not stopping watchdog\n");
+		s3c2410wdt_keepalive();
+	}
+	allow_close = CLOSE_STATE_NOT;
+	clear_bit(0, &open_lock);
+	return 0;
+}
+
+static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
+				size_t len, loff_t *ppos)
+{
+	/*
+	 *	Refresh the timer.
+	 */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			allow_close = CLOSE_STATE_NOT;
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					allow_close = CLOSE_STATE_ALLOW;
+			}
+		}
+		s3c2410wdt_keepalive();
+	}
+	return len;
+}
+
+#define OPTIONS WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE
+
+static const struct watchdog_info s3c2410_wdt_ident = {
+	.options          =     OPTIONS,
+	.firmware_version =	0,
+	.identity         =	"S3C2410 Watchdog",
+};
+
+
+static long s3c2410wdt_ioctl(struct file *file,	unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_margin;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &s3c2410_wdt_ident,
+			sizeof(s3c2410_wdt_ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		s3c2410wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, p))
+			return -EFAULT;
+		if (s3c2410wdt_set_heartbeat(new_margin))
+			return -EINVAL;
+		s3c2410wdt_keepalive();
+		return put_user(tmr_margin, p);
+	case WDIOC_GETTIMEOUT:
+		return put_user(tmr_margin, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/* kernel interface */
+
+static const struct file_operations s3c2410wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= s3c2410wdt_write,
+	.unlocked_ioctl	= s3c2410wdt_ioctl,
+	.open		= s3c2410wdt_open,
+	.release	= s3c2410wdt_release,
+};
+
+static struct miscdevice s3c2410wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &s3c2410wdt_fops,
+};
+
+/* interrupt handler code */
+
+static irqreturn_t s3c2410wdt_irq(int irqno, void *param)
+{
+	dev_info(wdt_dev, "watchdog timer expired (irq)\n");
+
+	s3c2410wdt_keepalive();
+	return IRQ_HANDLED;
+}
+/* device interface */
+
+static int s3c2410wdt_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct device *dev;
+	unsigned int wtcon;
+	int started = 0;
+	int ret;
+	int size;
+
+	DBG("%s: probe=%p\n", __func__, pdev);
+
+	dev = &pdev->dev;
+	wdt_dev = &pdev->dev;
+
+	/* get the memory region for the watchdog timer */
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(dev, "no memory resource specified\n");
+		return -ENOENT;
+	}
+
+	size = (res->end - res->start) + 1;
+	wdt_mem = request_mem_region(res->start, size, pdev->name);
+	if (wdt_mem == NULL) {
+		dev_err(dev, "failed to get memory region\n");
+		ret = -ENOENT;
+		goto err_req;
+	}
+
+	wdt_base = ioremap(res->start, size);
+	if (wdt_base == NULL) {
+		dev_err(dev, "failed to ioremap() region\n");
+		ret = -EINVAL;
+		goto err_req;
+	}
+
+	DBG("probe: mapped wdt_base=%p\n", wdt_base);
+
+	wdt_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (wdt_irq == NULL) {
+		dev_err(dev, "no irq resource specified\n");
+		ret = -ENOENT;
+		goto err_map;
+	}
+
+	ret = request_irq(wdt_irq->start, s3c2410wdt_irq, 0, pdev->name, pdev);
+	if (ret != 0) {
+		dev_err(dev, "failed to install irq (%d)\n", ret);
+		goto err_map;
+	}
+
+	wdt_clock = clk_get(&pdev->dev, "watchdog");
+	if (IS_ERR(wdt_clock)) {
+		dev_err(dev, "failed to find watchdog clock source\n");
+		ret = PTR_ERR(wdt_clock);
+		goto err_irq;
+	}
+
+	clk_enable(wdt_clock);
+
+	/* see if we can actually set the requested timer margin, and if
+	 * not, try the default value */
+
+	if (s3c2410wdt_set_heartbeat(tmr_margin)) {
+		started = s3c2410wdt_set_heartbeat(
+					CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME);
+
+		if (started == 0)
+			dev_info(dev,
+			   "tmr_margin value out of range, default %d used\n",
+			       CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME);
+		else
+			dev_info(dev, "default timer value is out of range, cannot start\n");
+	}
+
+	ret = misc_register(&s3c2410wdt_miscdev);
+	if (ret) {
+		dev_err(dev, "cannot register miscdev on minor=%d (%d)\n",
+			WATCHDOG_MINOR, ret);
+		goto err_clk;
+	}
+
+	if (tmr_atboot && started == 0) {
+		dev_info(dev, "starting watchdog timer\n");
+		s3c2410wdt_start();
+	} else if (!tmr_atboot) {
+		/* if we're not enabling the watchdog, then ensure it is
+		 * disabled if it has been left running from the bootloader
+		 * or other source */
+
+		s3c2410wdt_stop();
+	}
+
+	/* print out a statement of readiness */
+
+	wtcon = readl(wdt_base + S3C2410_WTCON);
+
+	dev_info(dev, "watchdog %sactive, reset %sabled, irq %sabled\n",
+		 (wtcon & S3C2410_WTCON_ENABLE) ?  "" : "in",
+		 (wtcon & S3C2410_WTCON_RSTEN) ? "" : "dis",
+		 (wtcon & S3C2410_WTCON_INTEN) ? "" : "en");
+
+	return 0;
+
+ err_clk:
+	clk_disable(wdt_clock);
+	clk_put(wdt_clock);
+
+ err_irq:
+	free_irq(wdt_irq->start, pdev);
+
+ err_map:
+	iounmap(wdt_base);
+
+ err_req:
+	release_resource(wdt_mem);
+	kfree(wdt_mem);
+
+	return ret;
+}
+
+static int s3c2410wdt_remove(struct platform_device *dev)
+{
+	release_resource(wdt_mem);
+	kfree(wdt_mem);
+	wdt_mem = NULL;
+
+	free_irq(wdt_irq->start, dev);
+	wdt_irq = NULL;
+
+	clk_disable(wdt_clock);
+	clk_put(wdt_clock);
+	wdt_clock = NULL;
+
+	iounmap(wdt_base);
+	misc_deregister(&s3c2410wdt_miscdev);
+	return 0;
+}
+
+static void s3c2410wdt_shutdown(struct platform_device *dev)
+{
+	s3c2410wdt_stop();
+}
+
+#ifdef CONFIG_PM
+
+static unsigned long wtcon_save;
+static unsigned long wtdat_save;
+
+static int s3c2410wdt_suspend(struct platform_device *dev, pm_message_t state)
+{
+	/* Save watchdog state, and turn it off. */
+	wtcon_save = readl(wdt_base + S3C2410_WTCON);
+	wtdat_save = readl(wdt_base + S3C2410_WTDAT);
+
+	/* Note that WTCNT doesn't need to be saved. */
+	s3c2410wdt_stop();
+
+	return 0;
+}
+
+static int s3c2410wdt_resume(struct platform_device *dev)
+{
+	/* Restore watchdog state. */
+
+	writel(wtdat_save, wdt_base + S3C2410_WTDAT);
+	writel(wtdat_save, wdt_base + S3C2410_WTCNT); /* Reset count */
+	writel(wtcon_save, wdt_base + S3C2410_WTCON);
+
+	printk(KERN_INFO PFX "watchdog %sabled\n",
+	       (wtcon_save & S3C2410_WTCON_ENABLE) ? "en" : "dis");
+
+	return 0;
+}
+
+#else
+#define s3c2410wdt_suspend NULL
+#define s3c2410wdt_resume  NULL
+#endif /* CONFIG_PM */
+
+
+static struct platform_driver s3c2410wdt_driver = {
+	.probe		= s3c2410wdt_probe,
+	.remove		= s3c2410wdt_remove,
+	.shutdown	= s3c2410wdt_shutdown,
+	.suspend	= s3c2410wdt_suspend,
+	.resume		= s3c2410wdt_resume,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "s3c2410-wdt",
+	},
+};
+
+
+static char banner[] __initdata =
+	KERN_INFO "S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n";
+
+static int __init watchdog_init(void)
+{
+	printk(banner);
+	return platform_driver_register(&s3c2410wdt_driver);
+}
+
+static void __exit watchdog_exit(void)
+{
+	platform_driver_unregister(&s3c2410wdt_driver);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>, "
+	      "Dimitry Andric <dimitry.andric@tomtom.com>");
+MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:s3c2410-wdt");
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
new file mode 100644
index 0000000..ed01e4c
--- /dev/null
+++ b/drivers/watchdog/sa1100_wdt.c
@@ -0,0 +1,190 @@
+/*
+ *	Watchdog driver for the SA11x0/PXA2xx
+ *
+ *      (c) Copyright 2000 Oleg Drokin <green@crimea.edu>
+ *          Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Oleg Drokin nor iXcelerator.com admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 2000           Oleg Drokin <green@crimea.edu>
+ *
+ *      27/11/2000 Initial release
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
+
+#ifdef CONFIG_ARCH_PXA
+#include <mach/pxa-regs.h>
+#endif
+
+#include <mach/reset.h>
+#include <mach/hardware.h>
+
+#define OSCR_FREQ		CLOCK_TICK_RATE
+
+static unsigned long sa1100wdt_users;
+static int pre_margin;
+static int boot_status;
+
+/*
+ *	Allow only one person to hold it open
+ */
+static int sa1100dog_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(1, &sa1100wdt_users))
+		return -EBUSY;
+
+	/* Activate SA1100 Watchdog timer */
+	OSMR3 = OSCR + pre_margin;
+	OSSR = OSSR_M3;
+	OWER = OWER_WME;
+	OIER |= OIER_E3;
+	return nonseekable_open(inode, file);
+}
+
+/*
+ * The watchdog cannot be disabled.
+ *
+ * Previous comments suggested that turning off the interrupt by
+ * clearing OIER[E3] would prevent the watchdog timing out but this
+ * does not appear to be true (at least on the PXA255).
+ */
+static int sa1100dog_release(struct inode *inode, struct file *file)
+{
+	printk(KERN_CRIT "WATCHDOG: Device closed - timer will not stop\n");
+	clear_bit(1, &sa1100wdt_users);
+	return 0;
+}
+
+static ssize_t sa1100dog_write(struct file *file, const char __user *data,
+						size_t len, loff_t *ppos)
+{
+	if (len)
+		/* Refresh OSMR3 timer. */
+		OSMR3 = OSCR + pre_margin;
+	return len;
+}
+
+static const struct watchdog_info ident = {
+	.options	= WDIOF_CARDRESET | WDIOF_SETTIMEOUT
+				| WDIOF_KEEPALIVEPING,
+	.identity	= "SA1100/PXA255 Watchdog",
+};
+
+static long sa1100dog_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int ret = -ENOTTY;
+	int time;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user(argp, &ident,
+				   sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+		ret = put_user(0, p);
+		break;
+
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(boot_status, p);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		OSMR3 = OSCR + pre_margin;
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, p);
+		if (ret)
+			break;
+
+		if (time <= 0 || time > 255) {
+			ret = -EINVAL;
+			break;
+		}
+
+		pre_margin = OSCR_FREQ * time;
+		OSMR3 = OSCR + pre_margin;
+		/*fall through*/
+
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(pre_margin / OSCR_FREQ, p);
+		break;
+	}
+	return ret;
+}
+
+static const struct file_operations sa1100dog_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= sa1100dog_write,
+	.unlocked_ioctl	= sa1100dog_ioctl,
+	.open		= sa1100dog_open,
+	.release	= sa1100dog_release,
+};
+
+static struct miscdevice sa1100dog_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &sa1100dog_fops,
+};
+
+static int margin __initdata = 60;		/* (secs) Default is 1 minute */
+
+static int __init sa1100dog_init(void)
+{
+	int ret;
+
+	/*
+	 * Read the reset status, and save it for later.  If
+	 * we suspend, RCSR will be cleared, and the watchdog
+	 * reset reason will be lost.
+	 */
+	boot_status = (reset_status & RESET_STATUS_WATCHDOG) ?
+				WDIOF_CARDRESET : 0;
+	pre_margin = OSCR_FREQ * margin;
+
+	ret = misc_register(&sa1100dog_miscdev);
+	if (ret == 0)
+		printk(KERN_INFO
+			"SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n",
+						margin);
+	return ret;
+}
+
+static void __exit sa1100dog_exit(void)
+{
+	misc_deregister(&sa1100dog_miscdev);
+}
+
+module_init(sa1100dog_init);
+module_exit(sa1100dog_exit);
+
+MODULE_AUTHOR("Oleg Drokin <green@crimea.edu>");
+MODULE_DESCRIPTION("SA1100/PXA2xx Watchdog");
+
+module_param(margin, int, 0);
+MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
new file mode 100644
index 0000000..38f5831
--- /dev/null
+++ b/drivers/watchdog/sb_wdog.c
@@ -0,0 +1,355 @@
+/*
+ * Watchdog driver for SiByte SB1 SoCs
+ *
+ * Copyright (C) 2007 OnStor, Inc. * Andrew Sharp <andy.sharp@onstor.com>
+ *
+ * This driver is intended to make the second of two hardware watchdogs
+ * on the Sibyte 12XX and 11XX SoCs available to the user.  There are two
+ * such devices available on the SoC, but it seems that there isn't an
+ * enumeration class for watchdogs in Linux like there is for RTCs.
+ * The second is used rather than the first because it uses IRQ 1,
+ * thereby avoiding all that IRQ 0 problematic nonsense.
+ *
+ * I have not tried this driver on a 1480 processor; it might work
+ * just well enough to really screw things up.
+ *
+ * It is a simple timer, and there is an interrupt that is raised the
+ * first time the timer expires.  The second time it expires, the chip
+ * is reset and there is no way to redirect that NMI.  Which could
+ * be problematic in some cases where this chip is sitting on the HT
+ * bus and has just taken responsibility for providing a cache block.
+ * Since the reset can't be redirected to the external reset pin, it is
+ * possible that other HT connected processors might hang and not reset.
+ * For Linux, a soft reset would probably be even worse than a hard reset.
+ * There you have it.
+ *
+ * The timer takes 23 bits of a 64 bit register (?) as a count value,
+ * and decrements the count every microsecond, for a max value of
+ * 0x7fffff usec or about 8.3ish seconds.
+ *
+ * This watchdog borrows some user semantics from the softdog driver,
+ * in that if you close the fd, it leaves the watchdog running, unless
+ * you previously wrote a 'V' to the fd, in which case it disables
+ * the watchdog when you close the fd like some other drivers.
+ *
+ * Based on various other watchdog drivers, which are probably all
+ * loosely based on something Alan Cox wrote years ago.
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	version 1 or 2 as published by the Free Software Foundation.
+ *
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/interrupt.h>
+
+#include <asm/sibyte/sb1250.h>
+#include <asm/sibyte/sb1250_regs.h>
+#include <asm/sibyte/sb1250_int.h>
+#include <asm/sibyte/sb1250_scd.h>
+
+static DEFINE_SPINLOCK(sbwd_lock);
+
+/*
+ * set the initial count value of a timer
+ *
+ * wdog is the iomem address of the cfg register
+ */
+void sbwdog_set(char __iomem *wdog, unsigned long t)
+{
+	spin_lock(&sbwd_lock);
+	__raw_writeb(0, wdog - 0x10);
+	__raw_writeq(t & 0x7fffffUL, wdog);
+	spin_unlock(&sbwd_lock);
+}
+
+/*
+ * cause the timer to [re]load it's initial count and start counting
+ * all over again
+ *
+ * wdog is the iomem address of the cfg register
+ */
+void sbwdog_pet(char __iomem *wdog)
+{
+	spin_lock(&sbwd_lock);
+	__raw_writeb(__raw_readb(wdog) | 1, wdog);
+	spin_unlock(&sbwd_lock);
+}
+
+static unsigned long sbwdog_gate; /* keeps it to one thread only */
+static char __iomem *kern_dog = (char __iomem *)(IO_BASE + (A_SCD_WDOG_CFG_0));
+static char __iomem *user_dog = (char __iomem *)(IO_BASE + (A_SCD_WDOG_CFG_1));
+static unsigned long timeout = 0x7fffffUL;	/* useconds: 8.3ish secs. */
+static int expect_close;
+
+static const struct watchdog_info ident = {
+	.options	= WDIOF_CARDRESET | WDIOF_SETTIMEOUT |
+						WDIOF_KEEPALIVEPING,
+	.identity	= "SiByte Watchdog",
+};
+
+/*
+ * Allow only a single thread to walk the dog
+ */
+static int sbwdog_open(struct inode *inode, struct file *file)
+{
+	nonseekable_open(inode, file);
+	if (test_and_set_bit(0, &sbwdog_gate))
+		return -EBUSY;
+	__module_get(THIS_MODULE);
+
+	/*
+	 * Activate the timer
+	 */
+	sbwdog_set(user_dog, timeout);
+	__raw_writeb(1, user_dog);
+
+	return 0;
+}
+
+/*
+ * Put the dog back in the kennel.
+ */
+static int sbwdog_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		__raw_writeb(0, user_dog);
+		module_put(THIS_MODULE);
+	} else {
+		printk(KERN_CRIT
+			"%s: Unexpected close, not stopping watchdog!\n",
+						ident.identity);
+		sbwdog_pet(user_dog);
+	}
+	clear_bit(0, &sbwdog_gate);
+	expect_close = 0;
+
+	return 0;
+}
+
+/*
+ * 42 - the answer
+ */
+static ssize_t sbwdog_write(struct file *file, const char __user *data,
+			size_t len, loff_t *ppos)
+{
+	int i;
+
+	if (len) {
+		/*
+		 * restart the timer
+		 */
+		expect_close = 0;
+
+		for (i = 0; i != len; i++) {
+			char c;
+
+			if (get_user(c, data + i))
+				return -EFAULT;
+			if (c == 'V')
+				expect_close = 42;
+		}
+		sbwdog_pet(user_dog);
+	}
+
+	return len;
+}
+
+static long sbwdog_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	int ret = -ENOTTY;
+	unsigned long time;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, p);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		sbwdog_pet(user_dog);
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(time, p);
+		if (ret)
+			break;
+
+		time *= 1000000;
+		if (time > 0x7fffffUL) {
+			ret = -EINVAL;
+			break;
+		}
+		timeout = time;
+		sbwdog_set(user_dog, timeout);
+		sbwdog_pet(user_dog);
+
+	case WDIOC_GETTIMEOUT:
+		/*
+		 * get the remaining count from the ... count register
+		 * which is 1*8 before the config register
+		 */
+		ret = put_user(__raw_readq(user_dog - 8) / 1000000, p);
+		break;
+	}
+	return ret;
+}
+
+/*
+ *	Notifier for system down
+ */
+static int sbwdog_notify_sys(struct notifier_block *this, unsigned long code,
+								void *erf)
+{
+	if (code == SYS_DOWN || code == SYS_HALT) {
+		/*
+		 * sit and sit
+		 */
+		__raw_writeb(0, user_dog);
+		__raw_writeb(0, kern_dog);
+	}
+
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations sbwdog_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= sbwdog_write,
+	.unlocked_ioctl	= sbwdog_ioctl,
+	.open		= sbwdog_open,
+	.release	= sbwdog_release,
+};
+
+static struct miscdevice sbwdog_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &sbwdog_fops,
+};
+
+static struct notifier_block sbwdog_notifier = {
+	.notifier_call	= sbwdog_notify_sys,
+};
+
+/*
+ * interrupt handler
+ *
+ * doesn't do a whole lot for user, but oh so cleverly written so kernel
+ * code can use it to re-up the watchdog, thereby saving the kernel from
+ * having to create and maintain a timer, just to tickle another timer,
+ * which is just so wrong.
+ */
+irqreturn_t sbwdog_interrupt(int irq, void *addr)
+{
+	unsigned long wd_init;
+	char *wd_cfg_reg = (char *)addr;
+	u8 cfg;
+
+	cfg = __raw_readb(wd_cfg_reg);
+	wd_init = __raw_readq(wd_cfg_reg - 8) & 0x7fffff;
+
+	/*
+	 * if it's the second watchdog timer, it's for those users
+	 */
+	if (wd_cfg_reg == user_dog)
+		printk(KERN_CRIT
+			"%s in danger of initiating system reset in %ld.%01ld seconds\n",
+			ident.identity, wd_init / 1000000, (wd_init / 100000) % 10);
+	else
+		cfg |= 1;
+
+	__raw_writeb(cfg, wd_cfg_reg);
+
+	return IRQ_HANDLED;
+}
+
+static int __init sbwdog_init(void)
+{
+	int ret;
+
+	/*
+	 * register a reboot notifier
+	 */
+	ret = register_reboot_notifier(&sbwdog_notifier);
+	if (ret) {
+		printk(KERN_ERR
+			"%s: cannot register reboot notifier (err=%d)\n",
+						ident.identity, ret);
+		return ret;
+	}
+
+	/*
+	 * get the resources
+	 */
+
+	ret = request_irq(1, sbwdog_interrupt, IRQF_DISABLED | IRQF_SHARED,
+		ident.identity, (void *)user_dog);
+	if (ret) {
+		printk(KERN_ERR "%s: failed to request irq 1 - %d\n",
+						ident.identity, ret);
+		return ret;
+	}
+
+	ret = misc_register(&sbwdog_miscdev);
+	if (ret == 0) {
+		printk(KERN_INFO "%s: timeout is %ld.%ld secs\n",
+				ident.identity,
+				timeout / 1000000, (timeout / 100000) % 10);
+	} else
+		free_irq(1, (void *)user_dog);
+	return ret;
+}
+
+static void __exit sbwdog_exit(void)
+{
+	misc_deregister(&sbwdog_miscdev);
+}
+
+module_init(sbwdog_init);
+module_exit(sbwdog_exit);
+
+MODULE_AUTHOR("Andrew Sharp <andy.sharp@onstor.com>");
+MODULE_DESCRIPTION("SiByte Watchdog");
+
+module_param(timeout, ulong, 0);
+MODULE_PARM_DESC(timeout,
+      "Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+/*
+ * example code that can be put in a platform code area to utilize the
+ * first watchdog timer for the kernels own purpose.
+
+void platform_wd_setup(void)
+{
+	int ret;
+
+	ret = request_irq(1, sbwdog_interrupt, IRQF_DISABLED | IRQF_SHARED,
+		"Kernel Watchdog", IOADDR(A_SCD_WDOG_CFG_0));
+	if (ret) {
+		printk(KERN_CRIT
+		  "Watchdog IRQ zero(0) failed to be requested - %d\n", ret);
+	}
+}
+
+
+ */
diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c
new file mode 100644
index 0000000..3266daa
--- /dev/null
+++ b/drivers/watchdog/sbc60xxwdt.c
@@ -0,0 +1,397 @@
+/*
+ *	60xx Single Board Computer Watchdog Timer driver for Linux 2.2.x
+ *
+ *      Based on acquirewdt.c by Alan Cox.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	The author does NOT admit liability nor provide warranty for
+ *	any of this software. This material is provided "AS-IS" in
+ *	the hope that it may be useful for others.
+ *
+ *	(c) Copyright 2000    Jakob Oestergaard <jakob@unthought.net>
+ *
+ *           12/4 - 2000      [Initial revision]
+ *           25/4 - 2000      Added /dev/watchdog support
+ *           09/5 - 2001      [smj@oro.net] fixed fop_write to "return 1"
+ *					on success
+ *           12/4 - 2002      [rob@osinvestor.com] eliminate fop_read
+ *                            fix possible wdt_is_open race
+ *                            add CONFIG_WATCHDOG_NOWAYOUT support
+ *                            remove lock_kernel/unlock_kernel pairs
+ *                            added KERN_* to printk's
+ *                            got rid of extraneous comments
+ *                            changed watchdog_info to correctly reflect what
+ *			      the driver offers
+ *			      added WDIOC_GETSTATUS, WDIOC_GETBOOTSTATUS,
+ *			      WDIOC_SETTIMEOUT, WDIOC_GETTIMEOUT, and
+ *			      WDIOC_SETOPTIONS ioctls
+ *           09/8 - 2003      [wim@iguana.be] cleanup of trailing spaces
+ *                            use module_param
+ *                            made timeout (the emulated heartbeat) a
+ *			      module_param
+ *                            made the keepalive ping an internal subroutine
+ *                            made wdt_stop and wdt_start module params
+ *                            added extra printk's for startup problems
+ *                            added MODULE_AUTHOR and MODULE_DESCRIPTION info
+ *
+ *
+ *  This WDT driver is different from the other Linux WDT
+ *  drivers in the following ways:
+ *  *)  The driver will ping the watchdog by itself, because this
+ *      particular WDT has a very short timeout (one second) and it
+ *      would be insane to count on any userspace daemon always
+ *      getting scheduled within that time frame.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define OUR_NAME "sbc60xxwdt"
+#define PFX OUR_NAME ": "
+
+/*
+ * You must set these - The driver cannot probe for the settings
+ */
+
+static int wdt_stop = 0x45;
+module_param(wdt_stop, int, 0);
+MODULE_PARM_DESC(wdt_stop, "SBC60xx WDT 'stop' io port (default 0x45)");
+
+static int wdt_start = 0x443;
+module_param(wdt_start, int, 0);
+MODULE_PARM_DESC(wdt_start, "SBC60xx WDT 'start' io port (default 0x443)");
+
+/*
+ * The 60xx board can use watchdog timeout values from one second
+ * to several minutes.  The default is one second, so if we reset
+ * the watchdog every ~250ms we should be safe.
+ */
+
+#define WDT_INTERVAL (HZ/4+1)
+
+/*
+ * We must not require too good response from the userspace daemon.
+ * Here we require the userspace daemon to send us a heartbeat
+ * char to /dev/watchdog every 30 seconds.
+ * If the daemon pulses us every 25 seconds, we can still afford
+ * a 5 second scheduling delay on the (high priority) daemon. That
+ * should be sufficient for a box under any load.
+ */
+
+#define WATCHDOG_TIMEOUT 30		/* 30 sec default timeout */
+static int timeout = WATCHDOG_TIMEOUT;	/* in seconds, multiplied by HZ to
+					   get seconds to wait for a ping */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. (1<=timeout<=3600, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static void wdt_timer_ping(unsigned long);
+static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
+static unsigned long next_heartbeat;
+static unsigned long wdt_is_open;
+static char wdt_expect_close;
+
+/*
+ *	Whack the dog
+ */
+
+static void wdt_timer_ping(unsigned long data)
+{
+	/* If we got a heartbeat pulse within the WDT_US_INTERVAL
+	 * we agree to ping the WDT
+	 */
+	if (time_before(jiffies, next_heartbeat)) {
+		/* Ping the WDT by reading from wdt_start */
+		inb_p(wdt_start);
+		/* Re-set the timer interval */
+		mod_timer(&timer, jiffies + WDT_INTERVAL);
+	} else
+		printk(KERN_WARNING PFX
+			"Heartbeat lost! Will not ping the watchdog\n");
+}
+
+/*
+ * Utility routines
+ */
+
+static void wdt_startup(void)
+{
+	next_heartbeat = jiffies + (timeout * HZ);
+
+	/* Start the timer */
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+	printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+}
+
+static void wdt_turnoff(void)
+{
+	/* Stop the timer */
+	del_timer(&timer);
+	inb_p(wdt_stop);
+	printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+}
+
+static void wdt_keepalive(void)
+{
+	/* user land ping */
+	next_heartbeat = jiffies + (timeout * HZ);
+}
+
+/*
+ * /dev/watchdog handling
+ */
+
+static ssize_t fop_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t ofs;
+
+			/* note: just in case someone wrote the
+			   magic character five months ago... */
+			wdt_expect_close = 0;
+
+			/* scan to see whether or not we got the
+			   magic character */
+			for (ofs = 0; ofs != count; ofs++) {
+				char c;
+				if (get_user(c, buf + ofs))
+					return -EFAULT;
+				if (c == 'V')
+					wdt_expect_close = 42;
+			}
+		}
+
+		/* Well, anyhow someone wrote to us, we should
+		   return that favour */
+		wdt_keepalive();
+	}
+	return count;
+}
+
+static int fop_open(struct inode *inode, struct file *file)
+{
+	/* Just in case we're already talking to someone... */
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Good, fire up the show */
+	wdt_startup();
+	return nonseekable_open(inode, file);
+}
+
+static int fop_close(struct inode *inode, struct file *file)
+{
+	if (wdt_expect_close == 42)
+		wdt_turnoff();
+	else {
+		del_timer(&timer);
+		printk(KERN_CRIT PFX
+		  "device file closed unexpectedly. Will not stop the WDT!\n");
+	}
+	clear_bit(0, &wdt_is_open);
+	wdt_expect_close = 0;
+	return 0;
+}
+
+static long fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+							WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "SBC60xx",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+		if (get_user(new_options, p))
+			return -EFAULT;
+		if (new_options & WDIOS_DISABLECARD) {
+			wdt_turnoff();
+			retval = 0;
+		}
+		if (new_options & WDIOS_ENABLECARD) {
+			wdt_startup();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_timeout;
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		/* arbitrary upper limit */
+		if (new_timeout < 1 || new_timeout > 3600)
+			return -EINVAL;
+
+		timeout = new_timeout;
+		wdt_keepalive();
+		/* Fall through */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= fop_write,
+	.open		= fop_open,
+	.release	= fop_close,
+	.unlocked_ioctl	= fop_ioctl,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &wdt_fops,
+};
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_turnoff();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static void __exit sbc60xxwdt_unload(void)
+{
+	wdt_turnoff();
+
+	/* Deregister */
+	misc_deregister(&wdt_miscdev);
+
+	unregister_reboot_notifier(&wdt_notifier);
+	if ((wdt_stop != 0x45) && (wdt_stop != wdt_start))
+		release_region(wdt_stop, 1);
+	release_region(wdt_start, 1);
+}
+
+static int __init sbc60xxwdt_init(void)
+{
+	int rc = -EBUSY;
+
+	if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */
+		timeout = WATCHDOG_TIMEOUT;
+		printk(KERN_INFO PFX
+			"timeout value must be 1 <= x <= 3600, using %d\n",
+								timeout);
+	}
+
+	if (!request_region(wdt_start, 1, "SBC 60XX WDT")) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			wdt_start);
+		rc = -EIO;
+		goto err_out;
+	}
+
+	/* We cannot reserve 0x45 - the kernel already has! */
+	if (wdt_stop != 0x45 && wdt_stop != wdt_start) {
+		if (!request_region(wdt_stop, 1, "SBC 60XX WDT")) {
+			printk(KERN_ERR PFX
+				"I/O address 0x%04x already in use\n",
+							wdt_stop);
+			rc = -EIO;
+			goto err_out_region1;
+		}
+	}
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_region2;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						wdt_miscdev.minor, rc);
+		goto err_out_reboot;
+	}
+	printk(KERN_INFO PFX "WDT driver for 60XX single board computer initialised. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+
+	return 0;
+
+err_out_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out_region2:
+	if (wdt_stop != 0x45 && wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+err_out_region1:
+	release_region(wdt_start, 1);
+err_out:
+	return rc;
+}
+
+module_init(sbc60xxwdt_init);
+module_exit(sbc60xxwdt_unload);
+
+MODULE_AUTHOR("Jakob Oestergaard <jakob@unthought.net>");
+MODULE_DESCRIPTION("60xx Single Board Computer Watchdog Timer driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c
new file mode 100644
index 0000000..67ddeb1
--- /dev/null
+++ b/drivers/watchdog/sbc7240_wdt.c
@@ -0,0 +1,324 @@
+/*
+ *	NANO7240 SBC Watchdog device driver
+ *
+ *	Based on w83877f.c by Scott Jennings,
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License version 2 as
+ *	published by the Free Software Foundation;
+ *
+ *	Software distributed under the License is distributed on an "AS IS"
+ *	basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *	implied. See the License for the specific language governing
+ *	rights and limitations under the License.
+ *
+ *	(c) Copyright 2007  Gilles GIGAN <gilles.gigan@jcu.edu.au>
+ *
+ */
+
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/miscdevice.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <asm/atomic.h>
+#include <asm/system.h>
+
+#define SBC7240_PREFIX "sbc7240_wdt: "
+
+#define SBC7240_ENABLE_PORT		0x443
+#define SBC7240_DISABLE_PORT		0x043
+#define SBC7240_SET_TIMEOUT_PORT	SBC7240_ENABLE_PORT
+#define SBC7240_MAGIC_CHAR		'V'
+
+#define SBC7240_TIMEOUT		30
+#define SBC7240_MAX_TIMEOUT		255
+static int timeout = SBC7240_TIMEOUT;	/* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (1<=timeout<="
+		 __MODULE_STRING(SBC7240_MAX_TIMEOUT) ", default="
+		 __MODULE_STRING(SBC7240_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Disable watchdog when closing device file");
+
+#define SBC7240_OPEN_STATUS_BIT		0
+#define SBC7240_ENABLED_STATUS_BIT	1
+#define SBC7240_EXPECT_CLOSE_STATUS_BIT	2
+static unsigned long wdt_status;
+
+/*
+ * Utility routines
+ */
+
+static void wdt_disable(void)
+{
+	/* disable the watchdog */
+	if (test_and_clear_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) {
+		inb_p(SBC7240_DISABLE_PORT);
+		printk(KERN_INFO SBC7240_PREFIX
+		       "Watchdog timer is now disabled.\n");
+	}
+}
+
+static void wdt_enable(void)
+{
+	/* enable the watchdog */
+	if (!test_and_set_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) {
+		inb_p(SBC7240_ENABLE_PORT);
+		printk(KERN_INFO SBC7240_PREFIX
+		       "Watchdog timer is now enabled.\n");
+	}
+}
+
+static int wdt_set_timeout(int t)
+{
+	if (t < 1 || t > SBC7240_MAX_TIMEOUT) {
+		printk(KERN_ERR SBC7240_PREFIX
+		       "timeout value must be 1<=x<=%d\n",
+		       SBC7240_MAX_TIMEOUT);
+		return -1;
+	}
+	/* set the timeout */
+	outb_p((unsigned)t, SBC7240_SET_TIMEOUT_PORT);
+	timeout = t;
+	printk(KERN_INFO SBC7240_PREFIX "timeout set to %d seconds\n", t);
+	return 0;
+}
+
+/* Whack the dog */
+static inline void wdt_keepalive(void)
+{
+	if (test_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status))
+		inb_p(SBC7240_ENABLE_PORT);
+}
+
+/*
+ * /dev/watchdog handling
+ */
+static ssize_t fop_write(struct file *file, const char __user *buf,
+			 size_t count, loff_t *ppos)
+{
+	size_t i;
+	char c;
+
+	if (count) {
+		if (!nowayout) {
+			clear_bit(SBC7240_EXPECT_CLOSE_STATUS_BIT,
+				&wdt_status);
+
+			/* is there a magic char ? */
+			for (i = 0; i != count; i++) {
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == SBC7240_MAGIC_CHAR) {
+					set_bit(SBC7240_EXPECT_CLOSE_STATUS_BIT,
+						&wdt_status);
+					break;
+				}
+			}
+		}
+
+		wdt_keepalive();
+	}
+
+	return count;
+}
+
+static int fop_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(SBC7240_OPEN_STATUS_BIT, &wdt_status))
+		return -EBUSY;
+
+	wdt_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static int fop_close(struct inode *inode, struct file *file)
+{
+	if (test_and_clear_bit(SBC7240_EXPECT_CLOSE_STATUS_BIT, &wdt_status)
+	    || !nowayout) {
+		wdt_disable();
+	} else {
+		printk(KERN_CRIT SBC7240_PREFIX
+		       "Unexpected close, not stopping watchdog!\n");
+		wdt_keepalive();
+	}
+
+	clear_bit(SBC7240_OPEN_STATUS_BIT, &wdt_status);
+	return 0;
+}
+
+static const struct watchdog_info ident = {
+	.options = WDIOF_KEEPALIVEPING|
+		   WDIOF_SETTIMEOUT|
+		   WDIOF_MAGICCLOSE,
+	.firmware_version = 1,
+	.identity = "SBC7240",
+};
+
+
+static long fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user((void __user *)arg, &ident, sizeof(ident))
+						 ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, (int __user *)arg);
+	case WDIOC_SETOPTIONS:
+	{
+		int options;
+		int retval = -EINVAL;
+
+		if (get_user(options, (int __user *)arg))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			wdt_disable();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			wdt_enable();
+			retval = 0;
+		}
+
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_timeout;
+
+		if (get_user(new_timeout, (int __user *)arg))
+			return -EFAULT;
+
+		if (wdt_set_timeout(new_timeout))
+			return -EINVAL;
+
+		/* Fall through */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, (int __user *)arg);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = fop_write,
+	.open = fop_open,
+	.release = fop_close,
+	.unlocked_ioctl = fop_ioctl,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &wdt_fops,
+};
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+			  void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_disable();
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static void __exit sbc7240_wdt_unload(void)
+{
+	printk(KERN_INFO SBC7240_PREFIX "Removing watchdog\n");
+	misc_deregister(&wdt_miscdev);
+
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(SBC7240_ENABLE_PORT, 1);
+}
+
+static int __init sbc7240_wdt_init(void)
+{
+	int rc = -EBUSY;
+
+	if (!request_region(SBC7240_ENABLE_PORT, 1, "SBC7240 WDT")) {
+		printk(KERN_ERR SBC7240_PREFIX
+		       "I/O address 0x%04x already in use\n",
+		       SBC7240_ENABLE_PORT);
+		rc = -EIO;
+		goto err_out;
+	}
+
+	/* The IO port 0x043 used to disable the watchdog
+	 * is already claimed by the system timer, so we
+	 * cant request_region() it ...*/
+
+	if (timeout < 1 || timeout > SBC7240_MAX_TIMEOUT) {
+		timeout = SBC7240_TIMEOUT;
+		printk(KERN_INFO SBC7240_PREFIX
+		       "timeout value must be 1<=x<=%d, using %d\n",
+		       SBC7240_MAX_TIMEOUT, timeout);
+	}
+	wdt_set_timeout(timeout);
+	wdt_disable();
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR SBC7240_PREFIX
+		       "cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_region;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR SBC7240_PREFIX
+		       "cannot register miscdev on minor=%d (err=%d)\n",
+		       wdt_miscdev.minor, rc);
+		goto err_out_reboot_notifier;
+	}
+
+	printk(KERN_INFO SBC7240_PREFIX
+	       "Watchdog driver for SBC7240 initialised (nowayout=%d)\n",
+	       nowayout);
+
+	return 0;
+
+err_out_reboot_notifier:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out_region:
+	release_region(SBC7240_ENABLE_PORT, 1);
+err_out:
+	return rc;
+}
+
+module_init(sbc7240_wdt_init);
+module_exit(sbc7240_wdt_unload);
+
+MODULE_AUTHOR("Gilles Gigan");
+MODULE_DESCRIPTION("Watchdog device driver for single board"
+		   " computers EPIC Nano 7240 from iEi");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c
new file mode 100644
index 0000000..ae74f6b
--- /dev/null
+++ b/drivers/watchdog/sbc8360.c
@@ -0,0 +1,412 @@
+/*
+ *	SBC8360 Watchdog driver
+ *
+ *	(c) Copyright 2005 Webcon, Inc.
+ *
+ *	Based on ib700wdt.c, which is based on advantechwdt.c which is based
+ *      on acquirewdt.c which is based on wdt.c.
+ *
+ *	(c) Copyright 2001 Charles Howes <chowes@vsol.net>
+ *
+ *      Based on advantechwdt.c which is based on acquirewdt.c which
+ *       is based on wdt.c.
+ *
+ *	(c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
+ *
+ *	Based on acquirewdt.c which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *      14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *           Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ *           Added timeout module option to override default
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/notifier.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+static unsigned long sbc8360_is_open;
+static char expect_close;
+
+#define PFX "sbc8360: "
+
+/*
+ *
+ * Watchdog Timer Configuration
+ *
+ * The function of the watchdog timer is to reset the system automatically
+ * and is defined at I/O port 0120H and 0121H.  To enable the watchdog timer
+ * and allow the system to reset, write appropriate values from the table
+ * below to I/O port 0120H and 0121H.  To disable the timer, write a zero
+ * value to I/O port 0121H for the system to stop the watchdog function.
+ *
+ * The following describes how the timer should be programmed (according to
+ * the vendor documentation)
+ *
+ * Enabling Watchdog:
+ * MOV AX,000AH (enable, phase I)
+ * MOV DX,0120H
+ * OUT DX,AX
+ * MOV AX,000BH (enable, phase II)
+ * MOV DX,0120H
+ * OUT DX,AX
+ * MOV AX,000nH (set multiplier n, from 1-4)
+ * MOV DX,0120H
+ * OUT DX,AX
+ * MOV AX,000mH (set base timer m, from 0-F)
+ * MOV DX,0121H
+ * OUT DX,AX
+ *
+ * Reset timer:
+ * MOV AX,000mH (same as set base timer, above)
+ * MOV DX,0121H
+ * OUT DX,AX
+ *
+ * Disabling Watchdog:
+ * MOV AX,0000H (a zero value)
+ * MOV DX,0120H
+ * OUT DX,AX
+ *
+ * Watchdog timeout configuration values:
+ *		N
+ *	M |	1	2	3	4
+ *	--|----------------------------------
+ *	0 |	0.5s	5s	50s	100s
+ *	1 |	1s	10s	100s	200s
+ *	2 |	1.5s	15s	150s	300s
+ *	3 |	2s	20s	200s	400s
+ *	4 |	2.5s	25s	250s	500s
+ *	5 |	3s	30s	300s	600s
+ *	6 |	3.5s	35s	350s	700s
+ *	7 |	4s	40s	400s	800s
+ *	8 |	4.5s	45s	450s	900s
+ *	9 |	5s	50s	500s	1000s
+ *	A |	5.5s	55s	550s	1100s
+ *	B |	6s	60s	600s	1200s
+ *	C |	6.5s	65s	650s	1300s
+ *	D |	7s	70s	700s	1400s
+ *	E |	7.5s	75s	750s	1500s
+ *	F |	8s	80s 	800s 	1600s
+ *
+ * Another way to say the same things is:
+ *  For N=1, Timeout = (M+1) * 0.5s
+ *  For N=2, Timeout = (M+1) * 5s
+ *  For N=3, Timeout = (M+1) * 50s
+ *  For N=4, Timeout = (M+1) * 100s
+ *
+ */
+
+static int wd_times[64][2] = {
+	{0, 1},			/* 0  = 0.5s */
+	{1, 1},			/* 1  = 1s   */
+	{2, 1},			/* 2  = 1.5s */
+	{3, 1},			/* 3  = 2s   */
+	{4, 1},			/* 4  = 2.5s */
+	{5, 1},			/* 5  = 3s   */
+	{6, 1},			/* 6  = 3.5s */
+	{7, 1},			/* 7  = 4s   */
+	{8, 1},			/* 8  = 4.5s */
+	{9, 1},			/* 9  = 5s   */
+	{0xA, 1},		/* 10 = 5.5s */
+	{0xB, 1},		/* 11 = 6s   */
+	{0xC, 1},		/* 12 = 6.5s */
+	{0xD, 1},		/* 13 = 7s   */
+	{0xE, 1},		/* 14 = 7.5s */
+	{0xF, 1},		/* 15 = 8s   */
+	{0, 2},			/* 16 = 5s  */
+	{1, 2},			/* 17 = 10s */
+	{2, 2},			/* 18 = 15s */
+	{3, 2},			/* 19 = 20s */
+	{4, 2},			/* 20 = 25s */
+	{5, 2},			/* 21 = 30s */
+	{6, 2},			/* 22 = 35s */
+	{7, 2},			/* 23 = 40s */
+	{8, 2},			/* 24 = 45s */
+	{9, 2},			/* 25 = 50s */
+	{0xA, 2},		/* 26 = 55s */
+	{0xB, 2},		/* 27 = 60s */
+	{0xC, 2},		/* 28 = 65s */
+	{0xD, 2},		/* 29 = 70s */
+	{0xE, 2},		/* 30 = 75s */
+	{0xF, 2},		/* 31 = 80s */
+	{0, 3},			/* 32 = 50s  */
+	{1, 3},			/* 33 = 100s */
+	{2, 3},			/* 34 = 150s */
+	{3, 3},			/* 35 = 200s */
+	{4, 3},			/* 36 = 250s */
+	{5, 3},			/* 37 = 300s */
+	{6, 3},			/* 38 = 350s */
+	{7, 3},			/* 39 = 400s */
+	{8, 3},			/* 40 = 450s */
+	{9, 3},			/* 41 = 500s */
+	{0xA, 3},		/* 42 = 550s */
+	{0xB, 3},		/* 43 = 600s */
+	{0xC, 3},		/* 44 = 650s */
+	{0xD, 3},		/* 45 = 700s */
+	{0xE, 3},		/* 46 = 750s */
+	{0xF, 3},		/* 47 = 800s */
+	{0, 4},			/* 48 = 100s */
+	{1, 4},			/* 49 = 200s */
+	{2, 4},			/* 50 = 300s */
+	{3, 4},			/* 51 = 400s */
+	{4, 4},			/* 52 = 500s */
+	{5, 4},			/* 53 = 600s */
+	{6, 4},			/* 54 = 700s */
+	{7, 4},			/* 55 = 800s */
+	{8, 4},			/* 56 = 900s */
+	{9, 4},			/* 57 = 1000s */
+	{0xA, 4},		/* 58 = 1100s */
+	{0xB, 4},		/* 59 = 1200s */
+	{0xC, 4},		/* 60 = 1300s */
+	{0xD, 4},		/* 61 = 1400s */
+	{0xE, 4},		/* 62 = 1500s */
+	{0xF, 4}		/* 63 = 1600s */
+};
+
+#define SBC8360_ENABLE 0x120
+#define SBC8360_BASETIME 0x121
+
+static int timeout = 27;
+static int wd_margin = 0xB;
+static int wd_multiplier = 2;
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Index into timeout table (0-63) (default=27 (60s))");
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		 "Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Kernel methods.
+ */
+
+/* Activate and pre-configure watchdog */
+static void sbc8360_activate(void)
+{
+	/* Enable the watchdog */
+	outb(0x0A, SBC8360_ENABLE);
+	msleep_interruptible(100);
+	outb(0x0B, SBC8360_ENABLE);
+	msleep_interruptible(100);
+	/* Set timeout multiplier */
+	outb(wd_multiplier, SBC8360_ENABLE);
+	msleep_interruptible(100);
+	/* Nothing happens until first sbc8360_ping() */
+}
+
+/* Kernel pings watchdog */
+static void sbc8360_ping(void)
+{
+	/* Write the base timer register */
+	outb(wd_margin, SBC8360_BASETIME);
+}
+
+/* stop watchdog */
+static void sbc8360_stop(void)
+{
+	/* De-activate the watchdog */
+	outb(0, SBC8360_ENABLE);
+}
+
+/* Userspace pings kernel driver, or requests clean close */
+static ssize_t sbc8360_write(struct file *file, const char __user *buf,
+			     size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		sbc8360_ping();
+	}
+	return count;
+}
+
+static int sbc8360_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &sbc8360_is_open))
+		return -EBUSY;
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Activate and ping once to start the countdown */
+	sbc8360_activate();
+	sbc8360_ping();
+	return nonseekable_open(inode, file);
+}
+
+static int sbc8360_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		sbc8360_stop();
+	else
+		printk(KERN_CRIT PFX
+			"SBC8360 device closed unexpectedly.  SBC8360 will not stop!\n");
+
+	clear_bit(0, &sbc8360_is_open);
+	expect_close = 0;
+	return 0;
+}
+
+/*
+ *	Notifier for system down
+ */
+
+static int sbc8360_notify_sys(struct notifier_block *this, unsigned long code,
+			      void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		sbc8360_stop();	/* Disable the SBC8360 Watchdog */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations sbc8360_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = sbc8360_write,
+	.open = sbc8360_open,
+	.release = sbc8360_close,
+};
+
+static struct miscdevice sbc8360_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &sbc8360_fops,
+};
+
+/*
+ *	The SBC8360 needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block sbc8360_notifier = {
+	.notifier_call = sbc8360_notify_sys,
+};
+
+static int __init sbc8360_init(void)
+{
+	int res;
+	unsigned long int mseconds = 60000;
+
+	if (timeout < 0 || timeout > 63) {
+		printk(KERN_ERR PFX "Invalid timeout index (must be 0-63).\n");
+		res = -EINVAL;
+		goto out;
+	}
+
+	if (!request_region(SBC8360_ENABLE, 1, "SBC8360")) {
+		printk(KERN_ERR PFX "ENABLE method I/O %X is not available.\n",
+		       SBC8360_ENABLE);
+		res = -EIO;
+		goto out;
+	}
+	if (!request_region(SBC8360_BASETIME, 1, "SBC8360")) {
+		printk(KERN_ERR PFX
+		       "BASETIME method I/O %X is not available.\n",
+		       SBC8360_BASETIME);
+		res = -EIO;
+		goto out_nobasetimereg;
+	}
+
+	res = register_reboot_notifier(&sbc8360_notifier);
+	if (res) {
+		printk(KERN_ERR PFX "Failed to register reboot notifier.\n");
+		goto out_noreboot;
+	}
+
+	res = misc_register(&sbc8360_miscdev);
+	if (res) {
+		printk(KERN_ERR PFX "failed to register misc device\n");
+		goto out_nomisc;
+	}
+
+	wd_margin = wd_times[timeout][0];
+	wd_multiplier = wd_times[timeout][1];
+
+	if (wd_multiplier == 1)
+		mseconds = (wd_margin + 1) * 500;
+	else if (wd_multiplier == 2)
+		mseconds = (wd_margin + 1) * 5000;
+	else if (wd_multiplier == 3)
+		mseconds = (wd_margin + 1) * 50000;
+	else if (wd_multiplier == 4)
+		mseconds = (wd_margin + 1) * 100000;
+
+	/* My kingdom for the ability to print "0.5 seconds" in the kernel! */
+	printk(KERN_INFO PFX "Timeout set at %ld ms.\n", mseconds);
+
+	return 0;
+
+out_nomisc:
+	unregister_reboot_notifier(&sbc8360_notifier);
+out_noreboot:
+	release_region(SBC8360_BASETIME, 1);
+out_nobasetimereg:
+	release_region(SBC8360_ENABLE, 1);
+out:
+	return res;
+}
+
+static void __exit sbc8360_exit(void)
+{
+	misc_deregister(&sbc8360_miscdev);
+	unregister_reboot_notifier(&sbc8360_notifier);
+	release_region(SBC8360_ENABLE, 1);
+	release_region(SBC8360_BASETIME, 1);
+}
+
+module_init(sbc8360_init);
+module_exit(sbc8360_exit);
+
+MODULE_AUTHOR("Ian E. Morgan <imorgan@webcon.ca>");
+MODULE_DESCRIPTION("SBC8360 watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.01");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+/* end of sbc8360.c */
diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c
new file mode 100644
index 0000000..06553de
--- /dev/null
+++ b/drivers/watchdog/sbc_epx_c3.c
@@ -0,0 +1,223 @@
+/*
+ *	SBC EPX C3 0.1	A Hardware Watchdog Device for the Winsystems EPX-C3
+ *	single board computer
+ *
+ *	(c) Copyright 2006 Calin A. Culianu <calin@ajvar.org>, All Rights
+ *	Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#define PFX "epx_c3: "
+static int epx_c3_alive;
+
+#define WATCHDOG_TIMEOUT 1		/* 1 sec default timeout */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#define EPXC3_WATCHDOG_CTL_REG 0x1ee /* write 1 to enable, 0 to disable */
+#define EPXC3_WATCHDOG_PET_REG 0x1ef /* write anything to pet once enabled */
+
+static void epx_c3_start(void)
+{
+	outb(1, EPXC3_WATCHDOG_CTL_REG);
+}
+
+static void epx_c3_stop(void)
+{
+
+	outb(0, EPXC3_WATCHDOG_CTL_REG);
+
+	printk(KERN_INFO PFX "Stopped watchdog timer.\n");
+}
+
+static void epx_c3_pet(void)
+{
+	outb(1, EPXC3_WATCHDOG_PET_REG);
+}
+
+/*
+ *	Allow only one person to hold it open
+ */
+static int epx_c3_open(struct inode *inode, struct file *file)
+{
+	if (epx_c3_alive)
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Activate timer */
+	epx_c3_start();
+	epx_c3_pet();
+
+	epx_c3_alive = 1;
+	printk(KERN_INFO "Started watchdog timer.\n");
+
+	return nonseekable_open(inode, file);
+}
+
+static int epx_c3_release(struct inode *inode, struct file *file)
+{
+	/* Shut off the timer.
+	 * Lock it in if it's a module and we defined ...NOWAYOUT */
+	if (!nowayout)
+		epx_c3_stop();		/* Turn the WDT off */
+
+	epx_c3_alive = 0;
+
+	return 0;
+}
+
+static ssize_t epx_c3_write(struct file *file, const char __user *data,
+			size_t len, loff_t *ppos)
+{
+	/* Refresh the timer. */
+	if (len)
+		epx_c3_pet();
+	return len;
+}
+
+static long epx_c3_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	int options, retval = -EINVAL;
+	int __user *argp = (void __user *)arg;
+	static const struct watchdog_info ident = {
+		.options		= WDIOF_KEEPALIVEPING |
+					  WDIOF_MAGICCLOSE,
+		.firmware_version	= 0,
+		.identity		= "Winsystems EPX-C3 H/W Watchdog",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		return 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, argp);
+	case WDIOC_SETOPTIONS:
+		if (get_user(options, argp))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			epx_c3_stop();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			epx_c3_start();
+			retval = 0;
+		}
+
+		return retval;
+	case WDIOC_KEEPALIVE:
+		epx_c3_pet();
+		return 0;
+	case WDIOC_GETTIMEOUT:
+		return put_user(WATCHDOG_TIMEOUT, argp);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int epx_c3_notify_sys(struct notifier_block *this, unsigned long code,
+				void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		epx_c3_stop();		/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations epx_c3_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= epx_c3_write,
+	.unlocked_ioctl	= epx_c3_ioctl,
+	.open		= epx_c3_open,
+	.release	= epx_c3_release,
+};
+
+static struct miscdevice epx_c3_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &epx_c3_fops,
+};
+
+static struct notifier_block epx_c3_notifier = {
+	.notifier_call = epx_c3_notify_sys,
+};
+
+static const char banner[] __initdata =
+    KERN_INFO PFX "Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n";
+
+static int __init watchdog_init(void)
+{
+	int ret;
+
+	if (!request_region(EPXC3_WATCHDOG_CTL_REG, 2, "epxc3_watchdog"))
+		return -EBUSY;
+
+	ret = register_reboot_notifier(&epx_c3_notifier);
+	if (ret) {
+		printk(KERN_ERR PFX "cannot register reboot notifier "
+			"(err=%d)\n", ret);
+		goto out;
+	}
+
+	ret = misc_register(&epx_c3_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX "cannot register miscdev on minor=%d "
+			"(err=%d)\n", WATCHDOG_MINOR, ret);
+		unregister_reboot_notifier(&epx_c3_notifier);
+		goto out;
+	}
+
+	printk(banner);
+
+	return 0;
+
+out:
+	release_region(EPXC3_WATCHDOG_CTL_REG, 2);
+	return ret;
+}
+
+static void __exit watchdog_exit(void)
+{
+	misc_deregister(&epx_c3_miscdev);
+	unregister_reboot_notifier(&epx_c3_notifier);
+	release_region(EPXC3_WATCHDOG_CTL_REG, 2);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_AUTHOR("Calin A. Culianu <calin@ajvar.org>");
+MODULE_DESCRIPTION("Hardware Watchdog Device for Winsystems EPX-C3 SBC.  Note that there is no way to probe for this device -- so only use it if you are *sure* you are runnning on this specific SBC system from Winsystems!  It writes to IO ports 0x1ee and 0x1ef!");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
new file mode 100644
index 0000000..23da3cc
--- /dev/null
+++ b/drivers/watchdog/sc1200wdt.c
@@ -0,0 +1,482 @@
+/*
+ *	National Semiconductor PC87307/PC97307 (ala SC1200) WDT driver
+ *	(c) Copyright 2002 Zwane Mwaikambo <zwane@commfireservices.com>,
+ *			All Rights Reserved.
+ *	Based on wdt.c and wdt977.c by Alan Cox and Woody Suwalski respectively.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	The author(s) of this software shall not be held liable for damages
+ *	of any nature resulting due to the use of this software. This
+ *	software is provided AS-IS with no warranties.
+ *
+ *	Changelog:
+ *	20020220 Zwane Mwaikambo	Code based on datasheet, no hardware.
+ *	20020221 Zwane Mwaikambo	Cleanups as suggested by Jeff Garzik
+ *					and Alan Cox.
+ *	20020222 Zwane Mwaikambo	Added probing.
+ *	20020225 Zwane Mwaikambo	Added ISAPNP support.
+ *	20020412 Rob Radez		Broke out start/stop functions
+ *		 <rob@osinvestor.com>	Return proper status instead of
+ *					temperature warning
+ *					Add WDIOC_GETBOOTSTATUS and
+ *					WDIOC_SETOPTIONS ioctls
+ *					Fix CONFIG_WATCHDOG_NOWAYOUT
+ *	20020530 Joel Becker		Add Matt Domsch's nowayout module
+ *					option
+ *	20030116 Adam Belay		Updated to the latest pnp code
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/pnp.h>
+#include <linux/fs.h>
+#include <linux/semaphore.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#define SC1200_MODULE_VER	"build 20020303"
+#define SC1200_MODULE_NAME	"sc1200wdt"
+#define PFX			SC1200_MODULE_NAME ": "
+
+#define	MAX_TIMEOUT	255	/* 255 minutes */
+#define PMIR		(io)	/* Power Management Index Register */
+#define PMDR		(io+1)	/* Power Management Data Register */
+
+/* Data Register indexes */
+#define FER1		0x00	/* Function enable register 1 */
+#define FER2		0x01	/* Function enable register 2 */
+#define PMC1		0x02	/* Power Management Ctrl 1 */
+#define PMC2		0x03	/* Power Management Ctrl 2 */
+#define PMC3		0x04	/* Power Management Ctrl 3 */
+#define WDTO		0x05	/* Watchdog timeout register */
+#define	WDCF		0x06	/* Watchdog config register */
+#define WDST		0x07	/* Watchdog status register */
+
+/* WDCF bitfields - which devices assert WDO */
+#define KBC_IRQ		0x01	/* Keyboard Controller */
+#define MSE_IRQ		0x02	/* Mouse */
+#define UART1_IRQ	0x03	/* Serial0 */
+#define UART2_IRQ	0x04	/* Serial1 */
+/* 5 -7 are reserved */
+
+static char banner[] __initdata = KERN_INFO PFX SC1200_MODULE_VER;
+static int timeout = 1;
+static int io = -1;
+static int io_len = 2;		/* for non plug and play */
+static unsigned long open_flag;
+static char expect_close;
+static DEFINE_SPINLOCK(sc1200wdt_lock);	/* io port access serialisation */
+
+#if defined CONFIG_PNP
+static int isapnp = 1;
+static struct pnp_dev *wdt_dev;
+
+module_param(isapnp, int, 0);
+MODULE_PARM_DESC(isapnp,
+	"When set to 0 driver ISA PnP support will be disabled");
+#endif
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "io port");
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "range is 0-255 minutes, default is 1");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+
+
+/* Read from Data Register */
+static inline void __sc1200wdt_read_data(unsigned char index,
+						unsigned char *data)
+{
+	outb_p(index, PMIR);
+	*data = inb(PMDR);
+}
+
+static void sc1200wdt_read_data(unsigned char index, unsigned char *data)
+{
+	spin_lock(&sc1200wdt_lock);
+	__sc1200wdt_read_data(index, data);
+	spin_unlock(&sc1200wdt_lock);
+}
+
+/* Write to Data Register */
+static inline void __sc1200wdt_write_data(unsigned char index,
+						unsigned char data)
+{
+	outb_p(index, PMIR);
+	outb(data, PMDR);
+}
+
+static inline void sc1200wdt_write_data(unsigned char index,
+						unsigned char data)
+{
+	spin_lock(&sc1200wdt_lock);
+	__sc1200wdt_write_data(index, data);
+	spin_unlock(&sc1200wdt_lock);
+}
+
+
+static void sc1200wdt_start(void)
+{
+	unsigned char reg;
+	spin_lock(&sc1200wdt_lock);
+
+	__sc1200wdt_read_data(WDCF, &reg);
+	/* assert WDO when any of the following interrupts are triggered too */
+	reg |= (KBC_IRQ | MSE_IRQ | UART1_IRQ | UART2_IRQ);
+	__sc1200wdt_write_data(WDCF, reg);
+	/* set the timeout and get the ball rolling */
+	__sc1200wdt_write_data(WDTO, timeout);
+
+	spin_unlock(&sc1200wdt_lock);
+}
+
+static void sc1200wdt_stop(void)
+{
+	sc1200wdt_write_data(WDTO, 0);
+}
+
+/* This returns the status of the WDO signal, inactive high. */
+static inline int sc1200wdt_status(void)
+{
+	unsigned char ret;
+
+	sc1200wdt_read_data(WDST, &ret);
+	/* If the bit is inactive, the watchdog is enabled, so return
+	 * KEEPALIVEPING which is a bit of a kludge because there's nothing
+	 * else for enabled/disabled status
+	 */
+	return (ret & 0x01) ? 0 : WDIOF_KEEPALIVEPING;
+}
+
+static int sc1200wdt_open(struct inode *inode, struct file *file)
+{
+	/* allow one at a time */
+	if (test_and_set_bit(0, &open_flag))
+		return -EBUSY;
+
+	if (timeout > MAX_TIMEOUT)
+		timeout = MAX_TIMEOUT;
+
+	sc1200wdt_start();
+	printk(KERN_INFO PFX "Watchdog enabled, timeout = %d min(s)", timeout);
+
+	return nonseekable_open(inode, file);
+}
+
+
+static long sc1200wdt_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
+{
+	int new_timeout;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+							WDIOF_MAGICCLOSE,
+		.firmware_version = 0,
+		.identity = "PC87307/PC97307",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof ident))
+			return -EFAULT;
+		return 0;
+
+	case WDIOC_GETSTATUS:
+		return put_user(sc1200wdt_status(), p);
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			sc1200wdt_stop();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			sc1200wdt_start();
+			retval = 0;
+		}
+
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		sc1200wdt_write_data(WDTO, timeout);
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		/* the API states this is given in secs */
+		new_timeout /= 60;
+		if (new_timeout < 0 || new_timeout > MAX_TIMEOUT)
+			return -EINVAL;
+		timeout = new_timeout;
+		sc1200wdt_write_data(WDTO, timeout);
+		/* fall through and return the new timeout */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout * 60, p);
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+
+static int sc1200wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		sc1200wdt_stop();
+		printk(KERN_INFO PFX "Watchdog disabled\n");
+	} else {
+		sc1200wdt_write_data(WDTO, timeout);
+		printk(KERN_CRIT PFX
+			"Unexpected close!, timeout = %d min(s)\n", timeout);
+	}
+	clear_bit(0, &open_flag);
+	expect_close = 0;
+
+	return 0;
+}
+
+
+static ssize_t sc1200wdt_write(struct file *file, const char __user *data,
+						size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+
+		sc1200wdt_write_data(WDTO, timeout);
+		return len;
+	}
+
+	return 0;
+}
+
+
+static int sc1200wdt_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		sc1200wdt_stop();
+
+	return NOTIFY_DONE;
+}
+
+
+static struct notifier_block sc1200wdt_notifier = {
+	.notifier_call =	sc1200wdt_notify_sys,
+};
+
+static const struct file_operations sc1200wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= sc1200wdt_write,
+	.unlocked_ioctl = sc1200wdt_ioctl,
+	.open		= sc1200wdt_open,
+	.release	= sc1200wdt_release,
+};
+
+static struct miscdevice sc1200wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &sc1200wdt_fops,
+};
+
+
+static int __init sc1200wdt_probe(void)
+{
+	/* The probe works by reading the PMC3 register's default value of 0x0e
+	 * there is one caveat, if the device disables the parallel port or any
+	 * of the UARTs we won't be able to detect it.
+	 * NB. This could be done with accuracy by reading the SID registers,
+	 * but we don't have access to those io regions.
+	 */
+
+	unsigned char reg;
+
+	sc1200wdt_read_data(PMC3, &reg);
+	reg &= 0x0f;		/* we don't want the UART busy bits */
+	return (reg == 0x0e) ? 0 : -ENODEV;
+}
+
+
+#if defined CONFIG_PNP
+
+static struct pnp_device_id scl200wdt_pnp_devices[] = {
+	/* National Semiconductor PC87307/PC97307 watchdog component */
+	{.id = "NSC0800", .driver_data = 0},
+	{.id = ""},
+};
+
+static int scl200wdt_pnp_probe(struct pnp_dev *dev,
+					const struct pnp_device_id *dev_id)
+{
+	/* this driver only supports one card at a time */
+	if (wdt_dev || !isapnp)
+		return -EBUSY;
+
+	wdt_dev = dev;
+	io = pnp_port_start(wdt_dev, 0);
+	io_len = pnp_port_len(wdt_dev, 0);
+
+	if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
+		printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
+		return -EBUSY;
+	}
+
+	printk(KERN_INFO "scl200wdt: PnP device found at io port %#x/%d\n",
+								io, io_len);
+	return 0;
+}
+
+static void scl200wdt_pnp_remove(struct pnp_dev *dev)
+{
+	if (wdt_dev) {
+		release_region(io, io_len);
+		wdt_dev = NULL;
+	}
+}
+
+static struct pnp_driver scl200wdt_pnp_driver = {
+	.name		= "scl200wdt",
+	.id_table	= scl200wdt_pnp_devices,
+	.probe		= scl200wdt_pnp_probe,
+	.remove		= scl200wdt_pnp_remove,
+};
+
+#endif /* CONFIG_PNP */
+
+
+static int __init sc1200wdt_init(void)
+{
+	int ret;
+
+	printk("%s\n", banner);
+
+#if defined CONFIG_PNP
+	if (isapnp) {
+		ret = pnp_register_driver(&scl200wdt_pnp_driver);
+		if (ret)
+			goto out_clean;
+	}
+#endif
+
+	if (io == -1) {
+		printk(KERN_ERR PFX "io parameter must be specified\n");
+		ret = -EINVAL;
+		goto out_pnp;
+	}
+
+#if defined CONFIG_PNP
+	/* now that the user has specified an IO port and we haven't detected
+	 * any devices, disable pnp support */
+	isapnp = 0;
+	pnp_unregister_driver(&scl200wdt_pnp_driver);
+#endif
+
+	if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
+		printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
+		ret = -EBUSY;
+		goto out_pnp;
+	}
+
+	ret = sc1200wdt_probe();
+	if (ret)
+		goto out_io;
+
+	ret = register_reboot_notifier(&sc1200wdt_notifier);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"Unable to register reboot notifier err = %d\n", ret);
+		goto out_io;
+	}
+
+	ret = misc_register(&sc1200wdt_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"Unable to register miscdev on minor %d\n",
+							WATCHDOG_MINOR);
+		goto out_rbt;
+	}
+
+	/* ret = 0 */
+
+out_clean:
+	return ret;
+
+out_rbt:
+	unregister_reboot_notifier(&sc1200wdt_notifier);
+
+out_io:
+	release_region(io, io_len);
+
+out_pnp:
+#if defined CONFIG_PNP
+	if (isapnp)
+		pnp_unregister_driver(&scl200wdt_pnp_driver);
+#endif
+	goto out_clean;
+}
+
+
+static void __exit sc1200wdt_exit(void)
+{
+	misc_deregister(&sc1200wdt_miscdev);
+	unregister_reboot_notifier(&sc1200wdt_notifier);
+
+#if defined CONFIG_PNP
+	if (isapnp)
+		pnp_unregister_driver(&scl200wdt_pnp_driver);
+	else
+#endif
+	release_region(io, io_len);
+}
+
+module_init(sc1200wdt_init);
+module_exit(sc1200wdt_exit);
+
+MODULE_AUTHOR("Zwane Mwaikambo <zwane@commfireservices.com>");
+MODULE_DESCRIPTION("Driver for National Semiconductor PC87307/PC97307 watchdog component");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c
new file mode 100644
index 0000000..a2b6c10
--- /dev/null
+++ b/drivers/watchdog/sc520_wdt.c
@@ -0,0 +1,443 @@
+/*
+ *	AMD Elan SC520 processor Watchdog Timer driver
+ *
+ *      Based on acquirewdt.c by Alan Cox,
+ *           and sbc60xxwdt.c by Jakob Oestergaard <jakob@unthought.net>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	The authors do NOT admit liability nor provide warranty for
+ *	any of this software. This material is provided "AS-IS" in
+ *      the hope that it may be useful for others.
+ *
+ *	(c) Copyright 2001    Scott Jennings <linuxdrivers@oro.net>
+ *           9/27 - 2001      [Initial release]
+ *
+ *	Additional fixes Alan Cox
+ *	-	Fixed formatting
+ *	-	Removed debug printks
+ *	-	Fixed SMP built kernel deadlock
+ *	-	Switched to private locks not lock_kernel
+ *	-	Used ioremap/writew/readw
+ *	-	Added NOWAYOUT support
+ *	4/12 - 2002 Changes by Rob Radez <rob@osinvestor.com>
+ *	-	Change comments
+ *	-	Eliminate fop_llseek
+ *	-	Change CONFIG_WATCHDOG_NOWAYOUT semantics
+ *	-	Add KERN_* tags to printks
+ *	-	fix possible wdt_is_open race
+ *	-	Report proper capabilities in watchdog_info
+ *	-	Add WDIOC_{GETSTATUS, GETBOOTSTATUS, SETTIMEOUT,
+ *		GETTIMEOUT, SETOPTIONS} ioctls
+ *	09/8 - 2003 Changes by Wim Van Sebroeck <wim@iguana.be>
+ *	-	cleanup of trailing spaces
+ *	-	added extra printk's for startup problems
+ *	-	use module_param
+ *	-	made timeout (the emulated heartbeat) a module_param
+ *	-	made the keepalive ping an internal subroutine
+ *	3/27 - 2004 Changes by Sean Young <sean@mess.org>
+ *	-	set MMCR_BASE to 0xfffef000
+ *	-	CBAR does not need to be read
+ *	-	removed debugging printks
+ *
+ *  This WDT driver is different from most other Linux WDT
+ *  drivers in that the driver will ping the watchdog by itself,
+ *  because this particular WDT has a very short timeout (1.6
+ *  seconds) and it would be insane to count on any userspace
+ *  daemon always getting scheduled within that time frame.
+ *
+ *  This driver uses memory mapped IO, and spinlock.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define OUR_NAME "sc520_wdt"
+#define PFX OUR_NAME ": "
+
+/*
+ * The AMD Elan SC520 timeout value is 492us times a power of 2 (0-7)
+ *
+ *   0: 492us    2: 1.01s    4: 4.03s   6: 16.22s
+ *   1: 503ms    3: 2.01s    5: 8.05s   7: 32.21s
+ *
+ * We will program the SC520 watchdog for a timeout of 2.01s.
+ * If we reset the watchdog every ~250ms we should be safe.
+ */
+
+#define WDT_INTERVAL (HZ/4+1)
+
+/*
+ * We must not require too good response from the userspace daemon.
+ * Here we require the userspace daemon to send us a heartbeat
+ * char to /dev/watchdog every 30 seconds.
+ */
+
+#define WATCHDOG_TIMEOUT 30		/* 30 sec default timeout */
+/* in seconds, will be multiplied by HZ to get seconds to wait for a ping */
+static int timeout = WATCHDOG_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. (1 <= timeout <= 3600, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * AMD Elan SC520 - Watchdog Timer Registers
+ */
+#define MMCR_BASE	0xfffef000	/* The default base address */
+#define OFFS_WDTMRCTL	0xCB0	/* Watchdog Timer Control Register */
+
+/* WDT Control Register bit definitions */
+#define WDT_EXP_SEL_01	0x0001	/* [01] Time-out = 496 us (with 33 Mhz clk). */
+#define WDT_EXP_SEL_02	0x0002	/* [02] Time-out = 508 ms (with 33 Mhz clk). */
+#define WDT_EXP_SEL_03	0x0004	/* [03] Time-out = 1.02 s (with 33 Mhz clk). */
+#define WDT_EXP_SEL_04	0x0008	/* [04] Time-out = 2.03 s (with 33 Mhz clk). */
+#define WDT_EXP_SEL_05	0x0010	/* [05] Time-out = 4.07 s (with 33 Mhz clk). */
+#define WDT_EXP_SEL_06	0x0020	/* [06] Time-out = 8.13 s (with 33 Mhz clk). */
+#define WDT_EXP_SEL_07	0x0040	/* [07] Time-out = 16.27s (with 33 Mhz clk). */
+#define WDT_EXP_SEL_08	0x0080	/* [08] Time-out = 32.54s (with 33 Mhz clk). */
+#define WDT_IRQ_FLG	0x1000	/* [12] Interrupt Request Flag */
+#define WDT_WRST_ENB	0x4000	/* [14] Watchdog Timer Reset Enable */
+#define WDT_ENB		0x8000	/* [15] Watchdog Timer Enable */
+
+static __u16 __iomem *wdtmrctl;
+
+static void wdt_timer_ping(unsigned long);
+static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
+static unsigned long next_heartbeat;
+static unsigned long wdt_is_open;
+static char wdt_expect_close;
+static DEFINE_SPINLOCK(wdt_spinlock);
+
+/*
+ *	Whack the dog
+ */
+
+static void wdt_timer_ping(unsigned long data)
+{
+	/* If we got a heartbeat pulse within the WDT_US_INTERVAL
+	 * we agree to ping the WDT
+	 */
+	if (time_before(jiffies, next_heartbeat)) {
+		/* Ping the WDT */
+		spin_lock(&wdt_spinlock);
+		writew(0xAAAA, wdtmrctl);
+		writew(0x5555, wdtmrctl);
+		spin_unlock(&wdt_spinlock);
+
+		/* Re-set the timer interval */
+		mod_timer(&timer, jiffies + WDT_INTERVAL);
+	} else
+		printk(KERN_WARNING PFX
+			"Heartbeat lost! Will not ping the watchdog\n");
+}
+
+/*
+ *	Utility routines
+ */
+
+static void wdt_config(int writeval)
+{
+	__u16 dummy;
+	unsigned long flags;
+
+	/* buy some time (ping) */
+	spin_lock_irqsave(&wdt_spinlock, flags);
+	dummy = readw(wdtmrctl);	/* ensure write synchronization */
+	writew(0xAAAA, wdtmrctl);
+	writew(0x5555, wdtmrctl);
+	/* unlock WDT = make WDT configuration register writable one time */
+	writew(0x3333, wdtmrctl);
+	writew(0xCCCC, wdtmrctl);
+	/* write WDT configuration register */
+	writew(writeval, wdtmrctl);
+	spin_unlock_irqrestore(&wdt_spinlock, flags);
+}
+
+static int wdt_startup(void)
+{
+	next_heartbeat = jiffies + (timeout * HZ);
+
+	/* Start the timer */
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+
+	/* Start the watchdog */
+	wdt_config(WDT_ENB | WDT_WRST_ENB | WDT_EXP_SEL_04);
+
+	printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+	return 0;
+}
+
+static int wdt_turnoff(void)
+{
+	/* Stop the timer */
+	del_timer(&timer);
+
+	/* Stop the watchdog */
+	wdt_config(0);
+
+	printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+	return 0;
+}
+
+static int wdt_keepalive(void)
+{
+	/* user land ping */
+	next_heartbeat = jiffies + (timeout * HZ);
+	return 0;
+}
+
+static int wdt_set_heartbeat(int t)
+{
+	if ((t < 1) || (t > 3600))	/* arbitrary upper limit */
+		return -EINVAL;
+
+	timeout = t;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static ssize_t fop_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t ofs;
+
+			/* note: just in case someone wrote the magic character
+			 * five months ago... */
+			wdt_expect_close = 0;
+
+			/* now scan */
+			for (ofs = 0; ofs != count; ofs++) {
+				char c;
+				if (get_user(c, buf + ofs))
+					return -EFAULT;
+				if (c == 'V')
+					wdt_expect_close = 42;
+			}
+		}
+
+		/* Well, anyhow someone wrote to us, we should
+		   return that favour */
+		wdt_keepalive();
+	}
+	return count;
+}
+
+static int fop_open(struct inode *inode, struct file *file)
+{
+	/* Just in case we're already talking to someone... */
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Good, fire up the show */
+	wdt_startup();
+	return nonseekable_open(inode, file);
+}
+
+static int fop_close(struct inode *inode, struct file *file)
+{
+	if (wdt_expect_close == 42)
+		wdt_turnoff();
+	else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		wdt_keepalive();
+	}
+	clear_bit(0, &wdt_is_open);
+	wdt_expect_close = 0;
+	return 0;
+}
+
+static long fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+							| WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "SC520",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+
+		if (get_user(new_options, p))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			wdt_turnoff();
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			wdt_startup();
+			retval = 0;
+		}
+
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_timeout;
+
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+
+		if (wdt_set_heartbeat(new_timeout))
+			return -EINVAL;
+
+		wdt_keepalive();
+		/* Fall through */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= fop_write,
+	.open		= fop_open,
+	.release	= fop_close,
+	.unlocked_ioctl	= fop_ioctl,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &wdt_fops,
+};
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_turnoff();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static void __exit sc520_wdt_unload(void)
+{
+	if (!nowayout)
+		wdt_turnoff();
+
+	/* Deregister */
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	iounmap(wdtmrctl);
+}
+
+static int __init sc520_wdt_init(void)
+{
+	int rc = -EBUSY;
+
+	/* Check that the timeout value is within it's range ;
+	   if not reset to the default */
+	if (wdt_set_heartbeat(timeout)) {
+		wdt_set_heartbeat(WATCHDOG_TIMEOUT);
+		printk(KERN_INFO PFX
+		    "timeout value must be 1 <= timeout <= 3600, using %d\n",
+							WATCHDOG_TIMEOUT);
+	}
+
+	wdtmrctl = ioremap((unsigned long)(MMCR_BASE + OFFS_WDTMRCTL), 2);
+	if (!wdtmrctl) {
+		printk(KERN_ERR PFX "Unable to remap memory\n");
+		rc = -ENOMEM;
+		goto err_out_region2;
+	}
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_ioremap;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, rc);
+		goto err_out_notifier;
+	}
+
+	printk(KERN_INFO PFX
+	   "WDT driver for SC520 initialised. timeout=%d sec (nowayout=%d)\n",
+							timeout, nowayout);
+
+	return 0;
+
+err_out_notifier:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out_ioremap:
+	iounmap(wdtmrctl);
+err_out_region2:
+	return rc;
+}
+
+module_init(sc520_wdt_init);
+module_exit(sc520_wdt_unload);
+
+MODULE_AUTHOR("Scott and Bill Jennings");
+MODULE_DESCRIPTION("Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c
new file mode 100644
index 0000000..9e19a10
--- /dev/null
+++ b/drivers/watchdog/scx200_wdt.c
@@ -0,0 +1,270 @@
+/* drivers/char/watchdog/scx200_wdt.c
+
+   National Semiconductor SCx200 Watchdog support
+
+   Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
+
+   Some code taken from:
+   National Semiconductor PC87307/PC97307 (ala SC1200) WDT driver
+   (c) Copyright 2002 Zwane Mwaikambo <zwane@commfireservices.com>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The author(s) of this software shall not be held liable for damages
+   of any nature resulting due to the use of this software. This
+   software is provided AS-IS with no warranties. */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/scx200.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#define NAME "scx200_wdt"
+
+MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>");
+MODULE_DESCRIPTION("NatSemi SCx200 Watchdog Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+static int margin = 60;		/* in seconds */
+module_param(margin, int, 0);
+MODULE_PARM_DESC(margin, "Watchdog margin in seconds");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
+
+static u16 wdto_restart;
+static char expect_close;
+static unsigned long open_lock;
+static DEFINE_SPINLOCK(scx_lock);
+
+/* Bits of the WDCNFG register */
+#define W_ENABLE 0x00fa		/* Enable watchdog */
+#define W_DISABLE 0x0000	/* Disable watchdog */
+
+/* The scaling factor for the timer, this depends on the value of W_ENABLE */
+#define W_SCALE (32768/1024)
+
+static void scx200_wdt_ping(void)
+{
+	spin_lock(&scx_lock);
+	outw(wdto_restart, scx200_cb_base + SCx200_WDT_WDTO);
+	spin_unlock(&scx_lock);
+}
+
+static void scx200_wdt_update_margin(void)
+{
+	printk(KERN_INFO NAME ": timer margin %d seconds\n", margin);
+	wdto_restart = margin * W_SCALE;
+}
+
+static void scx200_wdt_enable(void)
+{
+	printk(KERN_DEBUG NAME ": enabling watchdog timer, wdto_restart = %d\n",
+	       wdto_restart);
+
+	spin_lock(&scx_lock);
+	outw(0, scx200_cb_base + SCx200_WDT_WDTO);
+	outb(SCx200_WDT_WDSTS_WDOVF, scx200_cb_base + SCx200_WDT_WDSTS);
+	outw(W_ENABLE, scx200_cb_base + SCx200_WDT_WDCNFG);
+	spin_unlock(&scx_lock);
+
+	scx200_wdt_ping();
+}
+
+static void scx200_wdt_disable(void)
+{
+	printk(KERN_DEBUG NAME ": disabling watchdog timer\n");
+
+	spin_lock(&scx_lock);
+	outw(0, scx200_cb_base + SCx200_WDT_WDTO);
+	outb(SCx200_WDT_WDSTS_WDOVF, scx200_cb_base + SCx200_WDT_WDSTS);
+	outw(W_DISABLE, scx200_cb_base + SCx200_WDT_WDCNFG);
+	spin_unlock(&scx_lock);
+}
+
+static int scx200_wdt_open(struct inode *inode, struct file *file)
+{
+	/* only allow one at a time */
+	if (test_and_set_bit(0, &open_lock))
+		return -EBUSY;
+	scx200_wdt_enable();
+
+	return nonseekable_open(inode, file);
+}
+
+static int scx200_wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close != 42)
+		printk(KERN_WARNING NAME ": watchdog device closed unexpectedly, will not disable the watchdog timer\n");
+	else if (!nowayout)
+		scx200_wdt_disable();
+	expect_close = 0;
+	clear_bit(0, &open_lock);
+
+	return 0;
+}
+
+static int scx200_wdt_notify_sys(struct notifier_block *this,
+				      unsigned long code, void *unused)
+{
+	if (code == SYS_HALT || code == SYS_POWER_OFF)
+		if (!nowayout)
+			scx200_wdt_disable();
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block scx200_wdt_notifier = {
+	.notifier_call = scx200_wdt_notify_sys,
+};
+
+static ssize_t scx200_wdt_write(struct file *file, const char __user *data,
+				     size_t len, loff_t *ppos)
+{
+	/* check for a magic close character */
+	if (len) {
+		size_t i;
+
+		scx200_wdt_ping();
+
+		expect_close = 0;
+		for (i = 0; i < len; ++i) {
+			char c;
+			if (get_user(c, data + i))
+				return -EFAULT;
+			if (c == 'V')
+				expect_close = 42;
+		}
+
+		return len;
+	}
+
+	return 0;
+}
+
+static long scx200_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static const struct watchdog_info ident = {
+		.identity = "NatSemi SCx200 Watchdog",
+		.firmware_version = 1,
+		.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	};
+	int new_margin;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		return 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		if (put_user(0, p))
+			return -EFAULT;
+		return 0;
+	case WDIOC_KEEPALIVE:
+		scx200_wdt_ping();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, p))
+			return -EFAULT;
+		if (new_margin < 1)
+			return -EINVAL;
+		margin = new_margin;
+		scx200_wdt_update_margin();
+		scx200_wdt_ping();
+	case WDIOC_GETTIMEOUT:
+		if (put_user(margin, p))
+			return -EFAULT;
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations scx200_wdt_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.write = scx200_wdt_write,
+	.unlocked_ioctl = scx200_wdt_ioctl,
+	.open = scx200_wdt_open,
+	.release = scx200_wdt_release,
+};
+
+static struct miscdevice scx200_wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &scx200_wdt_fops,
+};
+
+static int __init scx200_wdt_init(void)
+{
+	int r;
+
+	printk(KERN_DEBUG NAME ": NatSemi SCx200 Watchdog Driver\n");
+
+	/* check that we have found the configuration block */
+	if (!scx200_cb_present())
+		return -ENODEV;
+
+	if (!request_region(scx200_cb_base + SCx200_WDT_OFFSET,
+			    SCx200_WDT_SIZE,
+			    "NatSemi SCx200 Watchdog")) {
+		printk(KERN_WARNING NAME ": watchdog I/O region busy\n");
+		return -EBUSY;
+	}
+
+	scx200_wdt_update_margin();
+	scx200_wdt_disable();
+
+	r = register_reboot_notifier(&scx200_wdt_notifier);
+	if (r) {
+		printk(KERN_ERR NAME ": unable to register reboot notifier");
+		release_region(scx200_cb_base + SCx200_WDT_OFFSET,
+				SCx200_WDT_SIZE);
+		return r;
+	}
+
+	r = misc_register(&scx200_wdt_miscdev);
+	if (r) {
+		unregister_reboot_notifier(&scx200_wdt_notifier);
+		release_region(scx200_cb_base + SCx200_WDT_OFFSET,
+				SCx200_WDT_SIZE);
+		return r;
+	}
+
+	return 0;
+}
+
+static void __exit scx200_wdt_cleanup(void)
+{
+	misc_deregister(&scx200_wdt_miscdev);
+	unregister_reboot_notifier(&scx200_wdt_notifier);
+	release_region(scx200_cb_base + SCx200_WDT_OFFSET,
+		       SCx200_WDT_SIZE);
+}
+
+module_init(scx200_wdt_init);
+module_exit(scx200_wdt_cleanup);
+
+/*
+    Local variables:
+	compile-command: "make -k -C ../.. SUBDIRS=drivers/char modules"
+	c-basic-offset: 8
+    End:
+*/
diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c
new file mode 100644
index 0000000..cdc7138
--- /dev/null
+++ b/drivers/watchdog/shwdt.c
@@ -0,0 +1,510 @@
+/*
+ * drivers/char/watchdog/shwdt.c
+ *
+ * Watchdog driver for integrated watchdog in the SuperH processors.
+ *
+ * Copyright (C) 2001, 2002, 2003 Paul Mundt <lethal@linux-sh.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *     Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ *
+ * 19-Apr-2002 Rob Radez <rob@osinvestor.com>
+ *     Added expect close support, made emulated timeout runtime changeable
+ *     general cleanups, add some ioctls
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/reboot.h>
+#include <linux/notifier.h>
+#include <linux/ioport.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <asm/watchdog.h>
+
+#define PFX "shwdt: "
+
+/*
+ * Default clock division ratio is 5.25 msecs. For an additional table of
+ * values, consult the asm-sh/watchdog.h. Overload this at module load
+ * time.
+ *
+ * In order for this to work reliably we need to have HZ set to 1000 or
+ * something quite higher than 100 (or we need a proper high-res timer
+ * implementation that will deal with this properly), otherwise the 10ms
+ * resolution of a jiffy is enough to trigger the overflow. For things like
+ * the SH-4 and SH-5, this isn't necessarily that big of a problem, though
+ * for the SH-2 and SH-3, this isn't recommended unless the WDT is absolutely
+ * necssary.
+ *
+ * As a result of this timing problem, the only modes that are particularly
+ * feasible are the 4096 and the 2048 divisors, which yeild 5.25 and 2.62ms
+ * overflow periods respectively.
+ *
+ * Also, since we can't really expect userspace to be responsive enough
+ * before the overflow happens, we maintain two separate timers .. One in
+ * the kernel for clearing out WOVF every 2ms or so (again, this depends on
+ * HZ == 1000), and another for monitoring userspace writes to the WDT device.
+ *
+ * As such, we currently use a configurable heartbeat interval which defaults
+ * to 30s. In this case, the userspace daemon is only responsible for periodic
+ * writes to the device before the next heartbeat is scheduled. If the daemon
+ * misses its deadline, the kernel timer will allow the WDT to overflow.
+ */
+static int clock_division_ratio = WTCSR_CKS_4096;
+
+#define next_ping_period(cks)	msecs_to_jiffies(cks - 4)
+
+static void sh_wdt_ping(unsigned long data);
+
+static unsigned long shwdt_is_open;
+static const struct watchdog_info sh_wdt_info;
+static char shwdt_expect_close;
+static DEFINE_TIMER(timer, sh_wdt_ping, 0, 0);
+static unsigned long next_heartbeat;
+static DEFINE_SPINLOCK(shwdt_lock);
+
+#define WATCHDOG_HEARTBEAT 30			/* 30 sec default heartbeat */
+static int heartbeat = WATCHDOG_HEARTBEAT;	/* in seconds */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+/**
+ * 	sh_wdt_start - Start the Watchdog
+ *
+ * 	Starts the watchdog.
+ */
+static void sh_wdt_start(void)
+{
+	__u8 csr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&shwdt_lock, flags);
+
+	next_heartbeat = jiffies + (heartbeat * HZ);
+	mod_timer(&timer, next_ping_period(clock_division_ratio));
+
+	csr = sh_wdt_read_csr();
+	csr |= WTCSR_WT | clock_division_ratio;
+	sh_wdt_write_csr(csr);
+
+	sh_wdt_write_cnt(0);
+
+	/*
+	 * These processors have a bit of an inconsistent initialization
+	 * process.. starting with SH-3, RSTS was moved to WTCSR, and the
+	 * RSTCSR register was removed.
+	 *
+	 * On the SH-2 however, in addition with bits being in different
+	 * locations, we must deal with RSTCSR outright..
+	 */
+	csr = sh_wdt_read_csr();
+	csr |= WTCSR_TME;
+	csr &= ~WTCSR_RSTS;
+	sh_wdt_write_csr(csr);
+
+#ifdef CONFIG_CPU_SH2
+	/*
+	 * Whoever came up with the RSTCSR semantics must've been smoking
+	 * some of the good stuff, since in addition to the WTCSR/WTCNT write
+	 * brain-damage, it's managed to fuck things up one step further..
+	 *
+	 * If we need to clear the WOVF bit, the upper byte has to be 0xa5..
+	 * but if we want to touch RSTE or RSTS, the upper byte has to be
+	 * 0x5a..
+	 */
+	csr = sh_wdt_read_rstcsr();
+	csr &= ~RSTCSR_RSTS;
+	sh_wdt_write_rstcsr(csr);
+#endif
+	spin_unlock_irqrestore(&shwdt_lock, flags);
+}
+
+/**
+ * 	sh_wdt_stop - Stop the Watchdog
+ * 	Stops the watchdog.
+ */
+static void sh_wdt_stop(void)
+{
+	__u8 csr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&shwdt_lock, flags);
+
+	del_timer(&timer);
+
+	csr = sh_wdt_read_csr();
+	csr &= ~WTCSR_TME;
+	sh_wdt_write_csr(csr);
+	spin_unlock_irqrestore(&shwdt_lock, flags);
+}
+
+/**
+ * 	sh_wdt_keepalive - Keep the Userspace Watchdog Alive
+ * 	The Userspace watchdog got a KeepAlive: schedule the next heartbeat.
+ */
+static inline void sh_wdt_keepalive(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&shwdt_lock, flags);
+	next_heartbeat = jiffies + (heartbeat * HZ);
+	spin_unlock_irqrestore(&shwdt_lock, flags);
+}
+
+/**
+ * 	sh_wdt_set_heartbeat - Set the Userspace Watchdog heartbeat
+ * 	Set the Userspace Watchdog heartbeat
+ */
+static int sh_wdt_set_heartbeat(int t)
+{
+	unsigned long flags;
+
+	if (unlikely(t < 1 || t > 3600)) /* arbitrary upper limit */
+		return -EINVAL;
+
+	spin_lock_irqsave(&shwdt_lock, flags);
+	heartbeat = t;
+	spin_unlock_irqrestore(&shwdt_lock, flags);
+	return 0;
+}
+
+/**
+ * 	sh_wdt_ping - Ping the Watchdog
+ *	@data: Unused
+ *
+ * 	Clears overflow bit, resets timer counter.
+ */
+static void sh_wdt_ping(unsigned long data)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&shwdt_lock, flags);
+	if (time_before(jiffies, next_heartbeat)) {
+		__u8 csr;
+
+		csr = sh_wdt_read_csr();
+		csr &= ~WTCSR_IOVF;
+		sh_wdt_write_csr(csr);
+
+		sh_wdt_write_cnt(0);
+
+		mod_timer(&timer, next_ping_period(clock_division_ratio));
+	} else
+		printk(KERN_WARNING PFX "Heartbeat lost! Will not ping "
+		       "the watchdog\n");
+	spin_unlock_irqrestore(&shwdt_lock, flags);
+}
+
+/**
+ * 	sh_wdt_open - Open the Device
+ * 	@inode: inode of device
+ * 	@file: file handle of device
+ *
+ * 	Watchdog device is opened and started.
+ */
+static int sh_wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &shwdt_is_open))
+		return -EBUSY;
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	sh_wdt_start();
+
+	return nonseekable_open(inode, file);
+}
+
+/**
+ * 	sh_wdt_close - Close the Device
+ * 	@inode: inode of device
+ * 	@file: file handle of device
+ *
+ * 	Watchdog device is closed and stopped.
+ */
+static int sh_wdt_close(struct inode *inode, struct file *file)
+{
+	if (shwdt_expect_close == 42) {
+		sh_wdt_stop();
+	} else {
+		printk(KERN_CRIT PFX "Unexpected close, not "
+		       "stopping watchdog!\n");
+		sh_wdt_keepalive();
+	}
+
+	clear_bit(0, &shwdt_is_open);
+	shwdt_expect_close = 0;
+
+	return 0;
+}
+
+/**
+ * 	sh_wdt_write - Write to Device
+ * 	@file: file handle of device
+ * 	@buf: buffer to write
+ * 	@count: length of buffer
+ * 	@ppos: offset
+ *
+ * 	Pings the watchdog on write.
+ */
+static ssize_t sh_wdt_write(struct file *file, const char *buf,
+			    size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			shwdt_expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					shwdt_expect_close = 42;
+			}
+		}
+		sh_wdt_keepalive();
+	}
+
+	return count;
+}
+
+/**
+ * 	sh_wdt_mmap - map WDT/CPG registers into userspace
+ * 	@file: file structure for the device
+ * 	@vma: VMA to map the registers into
+ *
+ * 	A simple mmap() implementation for the corner cases where the counter
+ * 	needs to be mapped in userspace directly. Due to the relatively small
+ * 	size of the area, neighbouring registers not necessarily tied to the
+ * 	CPG will also be accessible through the register page, so this remains
+ * 	configurable for users that really know what they're doing.
+ *
+ *	Additionaly, the register page maps in the CPG register base relative
+ *	to the nearest page-aligned boundary, which requires that userspace do
+ *	the appropriate CPU subtype math for calculating the page offset for
+ *	the counter value.
+ */
+static int sh_wdt_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	int ret = -ENOSYS;
+
+#ifdef CONFIG_SH_WDT_MMAP
+	unsigned long addr;
+
+	/* Only support the simple cases where we map in a register page. */
+	if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff)
+		return -EINVAL;
+
+	/*
+	 * Pick WTCNT as the start, it's usually the first register after the
+	 * FRQCR, and neither one are generally page-aligned out of the box.
+	 */
+	addr = WTCNT & ~(PAGE_SIZE - 1);
+
+	vma->vm_flags |= VM_IO;
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+	if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
+			       PAGE_SIZE, vma->vm_page_prot)) {
+		printk(KERN_ERR PFX "%s: io_remap_pfn_range failed\n",
+		       __func__);
+		return -EAGAIN;
+	}
+
+	ret = 0;
+#endif
+
+	return ret;
+}
+
+/**
+ * 	sh_wdt_ioctl - Query Device
+ * 	@file: file handle of device
+ * 	@cmd: watchdog command
+ * 	@arg: argument
+ *
+ * 	Query basic information from the device or ping it, as outlined by the
+ * 	watchdog API.
+ */
+static long sh_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int new_heartbeat;
+	int options, retval = -EINVAL;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user((struct watchdog_info *)arg,
+			  &sh_wdt_info, sizeof(sh_wdt_info)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, (int *)arg);
+	case WDIOC_SETOPTIONS:
+		if (get_user(options, (int *)arg))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			sh_wdt_stop();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			sh_wdt_start();
+			retval = 0;
+		}
+
+		return retval;
+	case WDIOC_KEEPALIVE:
+		sh_wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_heartbeat, (int *)arg))
+			return -EFAULT;
+
+		if (sh_wdt_set_heartbeat(new_heartbeat))
+			return -EINVAL;
+
+		sh_wdt_keepalive();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, (int *)arg);
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+/**
+ * 	sh_wdt_notify_sys - Notifier Handler
+ * 	@this: notifier block
+ * 	@code: notifier event
+ * 	@unused: unused
+ *
+ * 	Handles specific events, such as turning off the watchdog during a
+ * 	shutdown event.
+ */
+static int sh_wdt_notify_sys(struct notifier_block *this,
+			     unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		sh_wdt_stop();
+
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations sh_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= sh_wdt_write,
+	.unlocked_ioctl	= sh_wdt_ioctl,
+	.open		= sh_wdt_open,
+	.release	= sh_wdt_close,
+	.mmap		= sh_wdt_mmap,
+};
+
+static const struct watchdog_info sh_wdt_info = {
+	.options		= WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+				  WDIOF_MAGICCLOSE,
+	.firmware_version	= 1,
+	.identity		= "SH WDT",
+};
+
+static struct notifier_block sh_wdt_notifier = {
+	.notifier_call		= sh_wdt_notify_sys,
+};
+
+static struct miscdevice sh_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &sh_wdt_fops,
+};
+
+/**
+ * 	sh_wdt_init - Initialize module
+ * 	Registers the device and notifier handler. Actual device
+ * 	initialization is handled by sh_wdt_open().
+ */
+static int __init sh_wdt_init(void)
+{
+	int rc;
+
+	if (clock_division_ratio < 0x5 || clock_division_ratio > 0x7) {
+		clock_division_ratio = WTCSR_CKS_4096;
+		printk(KERN_INFO PFX
+		  "clock_division_ratio value must be 0x5<=x<=0x7, using %d\n",
+				clock_division_ratio);
+	}
+
+	rc = sh_wdt_set_heartbeat(heartbeat);
+	if (unlikely(rc)) {
+		heartbeat = WATCHDOG_HEARTBEAT;
+		printk(KERN_INFO PFX
+			"heartbeat value must be 1<=x<=3600, using %d\n",
+								heartbeat);
+	}
+
+	rc = register_reboot_notifier(&sh_wdt_notifier);
+	if (unlikely(rc)) {
+		printk(KERN_ERR PFX
+			"Can't register reboot notifier (err=%d)\n", rc);
+		return rc;
+	}
+
+	rc = misc_register(&sh_wdt_miscdev);
+	if (unlikely(rc)) {
+		printk(KERN_ERR PFX
+			"Can't register miscdev on minor=%d (err=%d)\n",
+						sh_wdt_miscdev.minor, rc);
+		unregister_reboot_notifier(&sh_wdt_notifier);
+		return rc;
+	}
+
+	printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+		heartbeat, nowayout);
+
+	return 0;
+}
+
+/**
+ * 	sh_wdt_exit - Deinitialize module
+ * 	Unregisters the device and notifier handler. Actual device
+ * 	deinitialization is handled by sh_wdt_close().
+ */
+static void __exit sh_wdt_exit(void)
+{
+	misc_deregister(&sh_wdt_miscdev);
+	unregister_reboot_notifier(&sh_wdt_notifier);
+}
+
+MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>");
+MODULE_DESCRIPTION("SuperH watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(clock_division_ratio, int, 0);
+MODULE_PARM_DESC(clock_division_ratio, "Clock division ratio. Valid ranges are from 0x5 (1.31ms) to 0x7 (5.25ms). (default=" __MODULE_STRING(clock_division_ratio) ")");
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+	"Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default="
+				__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+module_init(sh_wdt_init);
+module_exit(sh_wdt_exit);
diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c
new file mode 100644
index 0000000..2e56cad
--- /dev/null
+++ b/drivers/watchdog/smsc37b787_wdt.c
@@ -0,0 +1,627 @@
+/*
+ *	SMsC 37B787 Watchdog Timer driver for Linux 2.6.x.x
+ *
+ *	Based on acquirewdt.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *       and some other existing drivers
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	The authors do NOT admit liability nor provide warranty for
+ *	any of this software. This material is provided "AS-IS" in
+ *      the hope that it may be useful for others.
+ *
+ *	(C) Copyright 2003-2006  Sven Anders <anders@anduras.de>
+ *
+ *  History:
+ *	2003 - Created version 1.0 for Linux 2.4.x.
+ *	2006 - Ported to Linux 2.6, added nowayout and MAGICCLOSE
+ *	       features. Released version 1.1
+ *
+ *  Theory of operation:
+ *
+ *      A Watchdog Timer (WDT) is a hardware circuit that can
+ *      reset the computer system in case of a software fault.
+ *      You probably knew that already.
+ *
+ *      Usually a userspace daemon will notify the kernel WDT driver
+ *      via the /dev/watchdog special device file that userspace is
+ *      still alive, at regular intervals.  When such a notification
+ *      occurs, the driver will usually tell the hardware watchdog
+ *      that everything is in order, and that the watchdog should wait
+ *      for yet another little while to reset the system.
+ *      If userspace fails (RAM error, kernel bug, whatever), the
+ *      notifications cease to occur, and the hardware watchdog will
+ *      reset the system (causing a reboot) after the timeout occurs.
+ *
+ * Create device with:
+ *  mknod /dev/watchdog c 10 130
+ *
+ * For an example userspace keep-alive daemon, see:
+ *   Documentation/watchdog/watchdog.txt
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+/* enable support for minutes as units? */
+/* (does not always work correctly, so disabled by default!) */
+#define SMSC_SUPPORT_MINUTES
+#undef SMSC_SUPPORT_MINUTES
+
+#define MAX_TIMEOUT     255
+
+#define UNIT_SECOND     0
+#define UNIT_MINUTE     1
+
+#define MODNAME		"smsc37b787_wdt: "
+#define VERSION		"1.1"
+
+#define IOPORT		0x3F0
+#define IOPORT_SIZE     2
+#define IODEV_NO	8
+
+static int unit = UNIT_SECOND;	/* timer's unit */
+static int timeout = 60;	/* timeout value: default is 60 "units" */
+static unsigned long timer_enabled;   /* is the timer enabled? */
+
+static char expect_close;       /* is the close expected? */
+
+static DEFINE_SPINLOCK(io_lock);/* to guard the watchdog from io races */
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+/* -- Low level function ----------------------------------------*/
+
+/* unlock the IO chip */
+
+static inline void open_io_config(void)
+{
+	outb(0x55, IOPORT);
+	mdelay(1);
+	outb(0x55, IOPORT);
+}
+
+/* lock the IO chip */
+static inline void close_io_config(void)
+{
+	outb(0xAA, IOPORT);
+}
+
+/* select the IO device */
+static inline void select_io_device(unsigned char devno)
+{
+	outb(0x07, IOPORT);
+	outb(devno, IOPORT+1);
+}
+
+/* write to the control register */
+static inline void write_io_cr(unsigned char reg, unsigned char data)
+{
+	outb(reg, IOPORT);
+	outb(data, IOPORT+1);
+}
+
+/* read from the control register */
+static inline char read_io_cr(unsigned char reg)
+{
+	outb(reg, IOPORT);
+	return inb(IOPORT+1);
+}
+
+/* -- Medium level functions ------------------------------------*/
+
+static inline void gpio_bit12(unsigned char reg)
+{
+	/* -- General Purpose I/O Bit 1.2 --
+	 * Bit 0,   In/Out: 0 = Output, 1 = Input
+	 * Bit 1,   Polarity: 0 = No Invert, 1 = Invert
+	 * Bit 2,   Group Enable Intr.: 0 = Disable, 1 = Enable
+	 * Bit 3/4, Function select: 00 = GPI/O, 01 = WDT, 10 = P17,
+	 *                           11 = Either Edge Triggered Intr. 2
+	 * Bit 5/6  (Reserved)
+	 * Bit 7,   Output Type: 0 = Push Pull Bit, 1 = Open Drain
+	 */
+	write_io_cr(0xE2, reg);
+}
+
+static inline void gpio_bit13(unsigned char reg)
+{
+	/* -- General Purpose I/O Bit 1.3 --
+	 * Bit 0,  In/Out: 0 = Output, 1 = Input
+	 * Bit 1,  Polarity: 0 = No Invert, 1 = Invert
+	 * Bit 2,  Group Enable Intr.: 0 = Disable, 1 = Enable
+	 * Bit 3,  Function select: 0 = GPI/O, 1 = LED
+	 * Bit 4-6 (Reserved)
+	 * Bit 7,  Output Type: 0 = Push Pull Bit, 1 = Open Drain
+	 */
+	write_io_cr(0xE3, reg);
+}
+
+static inline void wdt_timer_units(unsigned char new_units)
+{
+	/* -- Watchdog timer units --
+	 * Bit 0-6 (Reserved)
+	 * Bit 7,  WDT Time-out Value Units Select
+	 *         (0 = Minutes, 1 = Seconds)
+	 */
+	write_io_cr(0xF1, new_units);
+}
+
+static inline void wdt_timeout_value(unsigned char new_timeout)
+{
+	/* -- Watchdog Timer Time-out Value --
+	 * Bit 0-7 Binary coded units (0=Disabled, 1..255)
+	 */
+	write_io_cr(0xF2, new_timeout);
+}
+
+static inline void wdt_timer_conf(unsigned char conf)
+{
+	/* -- Watchdog timer configuration --
+	 * Bit 0   Joystick enable: 0* = No Reset, 1 = Reset WDT upon
+	 *							Gameport I/O
+	 * Bit 1   Keyboard enable: 0* = No Reset, 1 = Reset WDT upon KBD Intr.
+	 * Bit 2   Mouse enable: 0* = No Reset, 1 = Reset WDT upon Mouse Intr
+	 * Bit 3   Reset the timer
+	 *         (Wrong in SMsC documentation? Given as: PowerLED Timout
+	 *							Enabled)
+	 * Bit 4-7 WDT Interrupt Mapping: (0000* = Disabled,
+	 *            0001=IRQ1, 0010=(Invalid), 0011=IRQ3 to 1111=IRQ15)
+	 */
+	write_io_cr(0xF3, conf);
+}
+
+static inline void wdt_timer_ctrl(unsigned char reg)
+{
+	/* -- Watchdog timer control --
+	 * Bit 0   Status Bit: 0 = Timer counting, 1 = Timeout occured
+	 * Bit 1   Power LED Toggle: 0 = Disable Toggle, 1 = Toggle at 1 Hz
+	 * Bit 2   Force Timeout: 1 = Forces WD timeout event (self-cleaning)
+	 * Bit 3   P20 Force Timeout enabled:
+	 *          0 = P20 activity does not generate the WD timeout event
+	 *          1 = P20 Allows rising edge of P20, from the keyboard
+	 *              controller, to force the WD timeout event.
+	 * Bit 4   (Reserved)
+	 * -- Soft power management --
+	 * Bit 5   Stop Counter: 1 = Stop software power down counter
+	 *            set via register 0xB8, (self-cleaning)
+	 *            (Upon read: 0 = Counter running, 1 = Counter stopped)
+	 * Bit 6   Restart Counter: 1 = Restart software power down counter
+	 *            set via register 0xB8, (self-cleaning)
+	 * Bit 7   SPOFF: 1 = Force software power down (self-cleaning)
+	 */
+	write_io_cr(0xF4, reg);
+}
+
+/* -- Higher level functions ------------------------------------*/
+
+/* initialize watchdog */
+
+static void wb_smsc_wdt_initialize(void)
+{
+	unsigned char old;
+
+	spin_lock(&io_lock);
+	open_io_config();
+	select_io_device(IODEV_NO);
+
+	/* enable the watchdog */
+	gpio_bit13(0x08);  /* Select pin 80 = LED not GPIO */
+	gpio_bit12(0x0A);  /* Set pin 79 = WDT not
+			      GPIO/Output/Polarity=Invert */
+	/* disable the timeout */
+	wdt_timeout_value(0);
+
+	/* reset control register */
+	wdt_timer_ctrl(0x00);
+
+	/* reset configuration register */
+	wdt_timer_conf(0x00);
+
+	/* read old (timer units) register */
+	old = read_io_cr(0xF1) & 0x7F;
+	if (unit == UNIT_SECOND)
+		old |= 0x80;	/* set to seconds */
+
+	/* set the watchdog timer units */
+	wdt_timer_units(old);
+
+	close_io_config();
+	spin_unlock(&io_lock);
+}
+
+/* shutdown the watchdog */
+
+static void wb_smsc_wdt_shutdown(void)
+{
+	spin_lock(&io_lock);
+	open_io_config();
+	select_io_device(IODEV_NO);
+
+	/* disable the watchdog */
+	gpio_bit13(0x09);
+	gpio_bit12(0x09);
+
+	/* reset watchdog config register */
+	wdt_timer_conf(0x00);
+
+	/* reset watchdog control register */
+	wdt_timer_ctrl(0x00);
+
+	/* disable timeout */
+	wdt_timeout_value(0x00);
+
+	close_io_config();
+	spin_unlock(&io_lock);
+}
+
+/* set timeout => enable watchdog */
+
+static void wb_smsc_wdt_set_timeout(unsigned char new_timeout)
+{
+	spin_lock(&io_lock);
+	open_io_config();
+	select_io_device(IODEV_NO);
+
+	/* set Power LED to blink, if we enable the timeout */
+	wdt_timer_ctrl((new_timeout == 0) ? 0x00 : 0x02);
+
+	/* set timeout value */
+	wdt_timeout_value(new_timeout);
+
+	close_io_config();
+	spin_unlock(&io_lock);
+}
+
+/* get timeout */
+
+static unsigned char wb_smsc_wdt_get_timeout(void)
+{
+	unsigned char set_timeout;
+
+	spin_lock(&io_lock);
+	open_io_config();
+	select_io_device(IODEV_NO);
+	set_timeout = read_io_cr(0xF2);
+	close_io_config();
+	spin_unlock(&io_lock);
+
+	return set_timeout;
+}
+
+/* disable watchdog */
+
+static void wb_smsc_wdt_disable(void)
+{
+	/* set the timeout to 0 to disable the watchdog */
+	wb_smsc_wdt_set_timeout(0);
+}
+
+/* enable watchdog by setting the current timeout */
+
+static void wb_smsc_wdt_enable(void)
+{
+	/* set the current timeout... */
+	wb_smsc_wdt_set_timeout(timeout);
+}
+
+/* reset the timer */
+
+static void wb_smsc_wdt_reset_timer(void)
+{
+	spin_lock(&io_lock);
+	open_io_config();
+	select_io_device(IODEV_NO);
+
+	/* reset the timer */
+	wdt_timeout_value(timeout);
+	wdt_timer_conf(0x08);
+
+	close_io_config();
+	spin_unlock(&io_lock);
+}
+
+/* return, if the watchdog is enabled (timeout is set...) */
+
+static int wb_smsc_wdt_status(void)
+{
+	return (wb_smsc_wdt_get_timeout() == 0) ? 0 : WDIOF_KEEPALIVEPING;
+}
+
+
+/* -- File operations -------------------------------------------*/
+
+/* open => enable watchdog and set initial timeout */
+
+static int wb_smsc_wdt_open(struct inode *inode, struct file *file)
+{
+	/* /dev/watchdog can only be opened once */
+
+	if (test_and_set_bit(0, &timer_enabled))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	/* Reload and activate timer */
+	wb_smsc_wdt_enable();
+
+	printk(KERN_INFO MODNAME
+		"Watchdog enabled. Timeout set to %d %s.\n",
+		timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
+
+	return nonseekable_open(inode, file);
+}
+
+/* close => shut off the timer */
+
+static int wb_smsc_wdt_release(struct inode *inode, struct file *file)
+{
+	/* Shut off the timer. */
+
+	if (expect_close == 42) {
+		wb_smsc_wdt_disable();
+		printk(KERN_INFO MODNAME
+				"Watchdog disabled, sleeping again...\n");
+	} else {
+		printk(KERN_CRIT MODNAME
+				"Unexpected close, not stopping watchdog!\n");
+		wb_smsc_wdt_reset_timer();
+	}
+
+	clear_bit(0, &timer_enabled);
+	expect_close = 0;
+	return 0;
+}
+
+/* write => update the timer to keep the machine alive */
+
+static ssize_t wb_smsc_wdt_write(struct file *file, const char __user *data,
+				 size_t len, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* reset expect flag */
+			expect_close = 0;
+
+			/* scan to see whether or not we got the
+			   magic character */
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+
+		/* someone wrote to us, we should reload the timer */
+		wb_smsc_wdt_reset_timer();
+	}
+	return len;
+}
+
+/* ioctl => control interface */
+
+static long wb_smsc_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	int new_timeout;
+
+	union {
+		struct watchdog_info __user *ident;
+		int __user *i;
+	} uarg;
+
+	static const struct watchdog_info ident = {
+		.options = 		WDIOF_KEEPALIVEPING |
+					WDIOF_SETTIMEOUT |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	0,
+		.identity = 		"SMsC 37B787 Watchdog",
+	};
+
+	uarg.i = (int __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(uarg.ident, &ident, sizeof(ident))
+								? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+		return put_user(wb_smsc_wdt_status(), uarg.i);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, uarg.i);
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, uarg.i))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			wb_smsc_wdt_disable();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			wb_smsc_wdt_enable();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wb_smsc_wdt_reset_timer();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, uarg.i))
+			return -EFAULT;
+		/* the API states this is given in secs */
+		if (unit == UNIT_MINUTE)
+			new_timeout /= 60;
+		if (new_timeout < 0 || new_timeout > MAX_TIMEOUT)
+			return -EINVAL;
+		timeout = new_timeout;
+		wb_smsc_wdt_set_timeout(timeout);
+		/* fall through and return the new timeout... */
+	case WDIOC_GETTIMEOUT:
+		new_timeout = timeout;
+		if (unit == UNIT_MINUTE)
+			  new_timeout *= 60;
+		return put_user(new_timeout, uarg.i);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/* -- Notifier funtions -----------------------------------------*/
+
+static int wb_smsc_wdt_notify_sys(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT) {
+		/* set timeout to 0, to avoid possible race-condition */
+		timeout = 0;
+		wb_smsc_wdt_disable();
+	}
+	return NOTIFY_DONE;
+}
+
+/* -- Module's structures ---------------------------------------*/
+
+static const struct file_operations wb_smsc_wdt_fops = {
+	.owner	  = THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wb_smsc_wdt_write,
+	.unlocked_ioctl	= wb_smsc_wdt_ioctl,
+	.open		= wb_smsc_wdt_open,
+	.release	= wb_smsc_wdt_release,
+};
+
+static struct notifier_block wb_smsc_wdt_notifier = {
+	.notifier_call  = wb_smsc_wdt_notify_sys,
+};
+
+static struct miscdevice wb_smsc_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &wb_smsc_wdt_fops,
+};
+
+/* -- Module init functions -------------------------------------*/
+
+/* module's "constructor" */
+
+static int __init wb_smsc_wdt_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO "SMsC 37B787 watchdog component driver "
+					VERSION " initialising...\n");
+
+	if (!request_region(IOPORT, IOPORT_SIZE, "SMsC 37B787 watchdog")) {
+		printk(KERN_ERR MODNAME "Unable to register IO port %#x\n",
+								IOPORT);
+		ret = -EBUSY;
+		goto out_pnp;
+	}
+
+	/* set new maximum, if it's too big */
+	if (timeout > MAX_TIMEOUT)
+		timeout = MAX_TIMEOUT;
+
+	/* init the watchdog timer */
+	wb_smsc_wdt_initialize();
+
+	ret = register_reboot_notifier(&wb_smsc_wdt_notifier);
+	if (ret) {
+		printk(KERN_ERR MODNAME
+			"Unable to register reboot notifier err = %d\n", ret);
+		goto out_io;
+	}
+
+	ret = misc_register(&wb_smsc_wdt_miscdev);
+	if (ret) {
+		printk(KERN_ERR MODNAME
+			"Unable to register miscdev on minor %d\n",
+							WATCHDOG_MINOR);
+		goto out_rbt;
+	}
+
+	/* output info */
+	printk(KERN_INFO MODNAME "Timeout set to %d %s.\n",
+		timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
+	printk(KERN_INFO MODNAME
+		"Watchdog initialized and sleeping (nowayout=%d)...\n",
+								nowayout);
+out_clean:
+	return ret;
+
+out_rbt:
+	unregister_reboot_notifier(&wb_smsc_wdt_notifier);
+
+out_io:
+	release_region(IOPORT, IOPORT_SIZE);
+
+out_pnp:
+	goto out_clean;
+}
+
+/* module's "destructor" */
+
+static void __exit wb_smsc_wdt_exit(void)
+{
+	/* Stop the timer before we leave */
+	if (!nowayout) {
+		wb_smsc_wdt_shutdown();
+		printk(KERN_INFO MODNAME "Watchdog disabled.\n");
+	}
+
+	misc_deregister(&wb_smsc_wdt_miscdev);
+	unregister_reboot_notifier(&wb_smsc_wdt_notifier);
+	release_region(IOPORT, IOPORT_SIZE);
+
+	printk(KERN_INFO "SMsC 37B787 watchdog component driver removed.\n");
+}
+
+module_init(wb_smsc_wdt_init);
+module_exit(wb_smsc_wdt_exit);
+
+MODULE_AUTHOR("Sven Anders <anders@anduras.de>");
+MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version "
+								VERSION ")");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+#ifdef SMSC_SUPPORT_MINUTES
+module_param(unit, int, 0);
+MODULE_PARM_DESC(unit,
+		"set unit to use, 0=seconds or 1=minutes, default is 0");
+#endif
+
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "range is 1-255 units, default is 60");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c
new file mode 100644
index 0000000..7204f96
--- /dev/null
+++ b/drivers/watchdog/softdog.c
@@ -0,0 +1,314 @@
+/*
+ *	SoftDog	0.07:	A Software Watchdog Device
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *	Software only watchdog driver. Unlike its big brother the WDT501P
+ *	driver this won't always recover a failed machine.
+ *
+ *  03/96: Angelo Haritsis <ah@doc.ic.ac.uk> :
+ *	Modularised.
+ *	Added soft_margin; use upon insmod to change the timer delay.
+ *	NB: uses same minor as wdt (WATCHDOG_MINOR); we could use separate
+ *	    minors.
+ *
+ *  19980911 Alan Cox
+ *	Made SMP safe for 2.3.x
+ *
+ *  20011127 Joel Becker (jlbec@evilplan.org>
+ *	Added soft_noboot; Allows testing the softdog trigger without
+ *	requiring a recompile.
+ *	Added WDIOC_GETTIMEOUT and WDIOC_SETTIMOUT.
+ *
+ *  20020530 Joel Becker <joel.becker@oracle.com>
+ *  	Added Matt Domsch's nowayout module option.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/uaccess.h>
+
+#define PFX "SoftDog: "
+
+#define TIMER_MARGIN	60		/* Default is 60 seconds */
+static int soft_margin = TIMER_MARGIN;	/* in seconds */
+module_param(soft_margin, int, 0);
+MODULE_PARM_DESC(soft_margin,
+	"Watchdog soft_margin in seconds. (0 < soft_margin < 65536, default="
+					__MODULE_STRING(TIMER_MARGIN) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#ifdef ONLY_TESTING
+static int soft_noboot = 1;
+#else
+static int soft_noboot = 0;
+#endif  /* ONLY_TESTING */
+
+module_param(soft_noboot, int, 0);
+MODULE_PARM_DESC(soft_noboot, "Softdog action, set to 1 to ignore reboots, 0 to reboot (default depends on ONLY_TESTING)");
+
+/*
+ *	Our timer
+ */
+
+static void watchdog_fire(unsigned long);
+
+static struct timer_list watchdog_ticktock =
+		TIMER_INITIALIZER(watchdog_fire, 0, 0);
+static unsigned long driver_open, orphan_timer;
+static char expect_close;
+
+
+/*
+ *	If the timer expires..
+ */
+
+static void watchdog_fire(unsigned long data)
+{
+	if (test_and_clear_bit(0, &orphan_timer))
+		module_put(THIS_MODULE);
+
+	if (soft_noboot)
+		printk(KERN_CRIT PFX "Triggered - Reboot ignored.\n");
+	else {
+		printk(KERN_CRIT PFX "Initiating system reboot.\n");
+		emergency_restart();
+		printk(KERN_CRIT PFX "Reboot didn't ?????\n");
+	}
+}
+
+/*
+ *	Softdog operations
+ */
+
+static int softdog_keepalive(void)
+{
+	mod_timer(&watchdog_ticktock, jiffies+(soft_margin*HZ));
+	return 0;
+}
+
+static int softdog_stop(void)
+{
+	del_timer(&watchdog_ticktock);
+	return 0;
+}
+
+static int softdog_set_heartbeat(int t)
+{
+	if ((t < 0x0001) || (t > 0xFFFF))
+		return -EINVAL;
+
+	soft_margin = t;
+	return 0;
+}
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static int softdog_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &driver_open))
+		return -EBUSY;
+	if (!test_and_clear_bit(0, &orphan_timer))
+		__module_get(THIS_MODULE);
+	/*
+	 *	Activate timer
+	 */
+	softdog_keepalive();
+	return nonseekable_open(inode, file);
+}
+
+static int softdog_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *	Shut off the timer.
+	 * 	Lock it in if it's a module and we set nowayout
+	 */
+	if (expect_close == 42) {
+		softdog_stop();
+		module_put(THIS_MODULE);
+	} else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		set_bit(0, &orphan_timer);
+		softdog_keepalive();
+	}
+	clear_bit(0, &driver_open);
+	expect_close = 0;
+	return 0;
+}
+
+static ssize_t softdog_write(struct file *file, const char __user *data,
+						size_t len, loff_t *ppos)
+{
+	/*
+	 *	Refresh the timer.
+	 */
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		softdog_keepalive();
+	}
+	return len;
+}
+
+static long softdog_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_margin;
+	static const struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	0,
+		.identity =		"Software Watchdog",
+	};
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		softdog_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, p))
+			return -EFAULT;
+		if (softdog_set_heartbeat(new_margin))
+			return -EINVAL;
+		softdog_keepalive();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(soft_margin, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/*
+ *	Notifier for system down
+ */
+
+static int softdog_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		/* Turn the WDT off */
+		softdog_stop();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations softdog_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= softdog_write,
+	.unlocked_ioctl	= softdog_ioctl,
+	.open		= softdog_open,
+	.release	= softdog_release,
+};
+
+static struct miscdevice softdog_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &softdog_fops,
+};
+
+static struct notifier_block softdog_notifier = {
+	.notifier_call	= softdog_notify_sys,
+};
+
+static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 initialized. soft_noboot=%d soft_margin=%d sec (nowayout= %d)\n";
+
+static int __init watchdog_init(void)
+{
+	int ret;
+
+	/* Check that the soft_margin value is within it's range;
+	   if not reset to the default */
+	if (softdog_set_heartbeat(soft_margin)) {
+		softdog_set_heartbeat(TIMER_MARGIN);
+		printk(KERN_INFO PFX
+		    "soft_margin must be 0 < soft_margin < 65536, using %d\n",
+			TIMER_MARGIN);
+	}
+
+	ret = register_reboot_notifier(&softdog_notifier);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		return ret;
+	}
+
+	ret = misc_register(&softdog_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						WATCHDOG_MINOR, ret);
+		unregister_reboot_notifier(&softdog_notifier);
+		return ret;
+	}
+
+	printk(banner, soft_noboot, soft_margin, nowayout);
+
+	return 0;
+}
+
+static void __exit watchdog_exit(void)
+{
+	misc_deregister(&softdog_miscdev);
+	unregister_reboot_notifier(&softdog_notifier);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("Software Watchdog Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
new file mode 100644
index 0000000..6adab77
--- /dev/null
+++ b/drivers/watchdog/txx9wdt.c
@@ -0,0 +1,284 @@
+/*
+ * txx9wdt: A Hardware Watchdog Driver for TXx9 SoCs
+ *
+ * Copyright (C) 2007 Atsushi Nemoto <anemo@mba.ocn.ne.jp>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <asm/txx9tmr.h>
+
+#define TIMER_MARGIN	60		/* Default is 60 seconds */
+
+static int timeout = TIMER_MARGIN;	/* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. "
+	"(0<timeout<((2^" __MODULE_STRING(TXX9_TIMER_BITS) ")/(IMCLK/256)), "
+	"default=" __MODULE_STRING(TIMER_MARGIN) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started "
+	"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#define WD_TIMER_CCD	7	/* 1/256 */
+#define WD_TIMER_CLK	(clk_get_rate(txx9_imclk) / (2 << WD_TIMER_CCD))
+#define WD_MAX_TIMEOUT	((0xffffffff >> (32 - TXX9_TIMER_BITS)) / WD_TIMER_CLK)
+
+static unsigned long txx9wdt_alive;
+static int expect_close;
+static struct txx9_tmr_reg __iomem *txx9wdt_reg;
+static struct clk *txx9_imclk;
+static DEFINE_SPINLOCK(txx9_lock);
+
+static void txx9wdt_ping(void)
+{
+	spin_lock(&txx9_lock);
+	__raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr);
+	spin_unlock(&txx9_lock);
+}
+
+static void txx9wdt_start(void)
+{
+	spin_lock(&txx9_lock);
+	__raw_writel(WD_TIMER_CLK * timeout, &txx9wdt_reg->cpra);
+	__raw_writel(WD_TIMER_CCD, &txx9wdt_reg->ccdr);
+	__raw_writel(0, &txx9wdt_reg->tisr);	/* clear pending interrupt */
+	__raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
+		     &txx9wdt_reg->tcr);
+	__raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr);
+	spin_unlock(&txx9_lock);
+}
+
+static void txx9wdt_stop(void)
+{
+	spin_lock(&txx9_lock);
+	__raw_writel(TXx9_TMWTMR_WDIS, &txx9wdt_reg->wtmr);
+	__raw_writel(__raw_readl(&txx9wdt_reg->tcr) & ~TXx9_TMTCR_TCE,
+		     &txx9wdt_reg->tcr);
+	spin_unlock(&txx9_lock);
+}
+
+static int txx9wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &txx9wdt_alive))
+		return -EBUSY;
+
+	if (__raw_readl(&txx9wdt_reg->tcr) & TXx9_TMTCR_TCE) {
+		clear_bit(0, &txx9wdt_alive);
+		return -EBUSY;
+	}
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	txx9wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+static int txx9wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close)
+		txx9wdt_stop();
+	else {
+		printk(KERN_CRIT "txx9wdt: "
+		       "Unexpected close, not stopping watchdog!\n");
+		txx9wdt_ping();
+	}
+	clear_bit(0, &txx9wdt_alive);
+	expect_close = 0;
+	return 0;
+}
+
+static ssize_t txx9wdt_write(struct file *file, const char __user *data,
+			     size_t len, loff_t *ppos)
+{
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+			for (i = 0; i != len; i++) {
+				char c;
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 1;
+			}
+		}
+		txx9wdt_ping();
+	}
+	return len;
+}
+
+static long txx9wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_timeout;
+	static const struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT |
+					WDIOF_KEEPALIVEPING |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	0,
+		.identity =		"Hardware Watchdog for TXx9",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		txx9wdt_ping();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (new_timeout < 1 || new_timeout > WD_MAX_TIMEOUT)
+			return -EINVAL;
+		timeout = new_timeout;
+		txx9wdt_stop();
+		txx9wdt_start();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static int txx9wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		txx9wdt_stop();
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations txx9wdt_fops = {
+	.owner		=	THIS_MODULE,
+	.llseek		=	no_llseek,
+	.write		=	txx9wdt_write,
+	.unlocked_ioctl =	txx9wdt_ioctl,
+	.open		=	txx9wdt_open,
+	.release	=	txx9wdt_release,
+};
+
+static struct miscdevice txx9wdt_miscdev = {
+	.minor	=	WATCHDOG_MINOR,
+	.name	=	"watchdog",
+	.fops	=	&txx9wdt_fops,
+};
+
+static struct notifier_block txx9wdt_notifier = {
+	.notifier_call = txx9wdt_notify_sys,
+};
+
+static int __init txx9wdt_probe(struct platform_device *dev)
+{
+	struct resource *res;
+	int ret;
+
+	txx9_imclk = clk_get(NULL, "imbus_clk");
+	if (IS_ERR(txx9_imclk)) {
+		ret = PTR_ERR(txx9_imclk);
+		txx9_imclk = NULL;
+		goto exit;
+	}
+	ret = clk_enable(txx9_imclk);
+	if (ret) {
+		clk_put(txx9_imclk);
+		txx9_imclk = NULL;
+		goto exit;
+	}
+
+	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	if (!res)
+		goto exit_busy;
+	if (!devm_request_mem_region(&dev->dev,
+				     res->start, res->end - res->start + 1,
+				     "txx9wdt"))
+		goto exit_busy;
+	txx9wdt_reg = devm_ioremap(&dev->dev,
+				   res->start, res->end - res->start + 1);
+	if (!txx9wdt_reg)
+		goto exit_busy;
+
+	ret = register_reboot_notifier(&txx9wdt_notifier);
+	if (ret)
+		goto exit;
+
+	ret = misc_register(&txx9wdt_miscdev);
+	if (ret) {
+		unregister_reboot_notifier(&txx9wdt_notifier);
+		goto exit;
+	}
+
+	printk(KERN_INFO "Hardware Watchdog Timer for TXx9: "
+	       "timeout=%d sec (max %ld) (nowayout= %d)\n",
+	       timeout, WD_MAX_TIMEOUT, nowayout);
+
+	return 0;
+exit_busy:
+	ret = -EBUSY;
+exit:
+	if (txx9_imclk) {
+		clk_disable(txx9_imclk);
+		clk_put(txx9_imclk);
+	}
+	return ret;
+}
+
+static int __exit txx9wdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&txx9wdt_miscdev);
+	unregister_reboot_notifier(&txx9wdt_notifier);
+	clk_disable(txx9_imclk);
+	clk_put(txx9_imclk);
+	return 0;
+}
+
+static struct platform_driver txx9wdt_driver = {
+	.remove = __exit_p(txx9wdt_remove),
+	.driver = {
+		.name = "txx9wdt",
+		.owner = THIS_MODULE,
+	},
+};
+
+static int __init watchdog_init(void)
+{
+	return platform_driver_probe(&txx9wdt_driver, txx9wdt_probe);
+}
+
+static void __exit watchdog_exit(void)
+{
+	platform_driver_unregister(&txx9wdt_driver);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_exit);
+
+MODULE_DESCRIPTION("TXx9 Watchdog Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:txx9wdt");
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
new file mode 100644
index 0000000..916890a
--- /dev/null
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -0,0 +1,378 @@
+/*
+ *	w83627hf/thf WDT driver
+ *
+ *	(c) Copyright 2007 Vlad Drukker <vlad@storewiz.com>
+ *		added support for W83627THF.
+ *
+ *	(c) Copyright 2003,2007 Pádraig Brady <P@draigBrady.com>
+ *
+ *	Based on advantechwdt.c which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define WATCHDOG_NAME "w83627hf/thf/hg WDT"
+#define PFX WATCHDOG_NAME ": "
+#define WATCHDOG_TIMEOUT 60		/* 60 sec default timeout */
+
+static unsigned long wdt_is_open;
+static char expect_close;
+static DEFINE_SPINLOCK(io_lock);
+
+/* You must set this - there is no sane way to probe for this board. */
+static int wdt_io = 0x2E;
+module_param(wdt_io, int, 0);
+MODULE_PARM_DESC(wdt_io, "w83627hf/thf WDT io port (default 0x2E)");
+
+static int timeout = WATCHDOG_TIMEOUT;	/* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Watchdog timeout in seconds. 1 <= timeout <= 255, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Kernel methods.
+ */
+
+#define WDT_EFER (wdt_io+0)   /* Extended Function Enable Registers */
+#define WDT_EFIR (wdt_io+0)   /* Extended Function Index Register
+							(same as EFER) */
+#define WDT_EFDR (WDT_EFIR+1) /* Extended Function Data Register */
+
+static void w83627hf_select_wd_register(void)
+{
+	unsigned char c;
+	outb_p(0x87, WDT_EFER); /* Enter extended function mode */
+	outb_p(0x87, WDT_EFER); /* Again according to manual */
+
+	outb(0x20, WDT_EFER);	/* check chip version	*/
+	c = inb(WDT_EFDR);
+	if (c == 0x82) {	/* W83627THF		*/
+		outb_p(0x2b, WDT_EFER); /* select GPIO3 */
+		c = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */
+		outb_p(0x2b, WDT_EFER);
+		outb_p(c, WDT_EFDR);	/* set GPIO3 to WDT0 */
+	}
+
+	outb_p(0x07, WDT_EFER); /* point to logical device number reg */
+	outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */
+	outb_p(0x30, WDT_EFER); /* select CR30 */
+	outb_p(0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
+}
+
+static void w83627hf_unselect_wd_register(void)
+{
+	outb_p(0xAA, WDT_EFER); /* Leave extended function mode */
+}
+
+/* tyan motherboards seem to set F5 to 0x4C ?
+ * So explicitly init to appropriate value. */
+
+static void w83627hf_init(void)
+{
+	unsigned char t;
+
+	w83627hf_select_wd_register();
+
+	outb_p(0xF6, WDT_EFER); /* Select CRF6 */
+	t = inb_p(WDT_EFDR);      /* read CRF6 */
+	if (t != 0) {
+		printk(KERN_INFO PFX
+		     "Watchdog already running. Resetting timeout to %d sec\n",
+								timeout);
+		outb_p(timeout, WDT_EFDR);    /* Write back to CRF6 */
+	}
+
+	outb_p(0xF5, WDT_EFER); /* Select CRF5 */
+	t = inb_p(WDT_EFDR);      /* read CRF5 */
+	t &= ~0x0C;               /* set second mode & disable keyboard
+				    turning off watchdog */
+	outb_p(t, WDT_EFDR);    /* Write back to CRF5 */
+
+	outb_p(0xF7, WDT_EFER); /* Select CRF7 */
+	t = inb_p(WDT_EFDR);      /* read CRF7 */
+	t &= ~0xC0;               /* disable keyboard & mouse turning off
+				    watchdog */
+	outb_p(t, WDT_EFDR);    /* Write back to CRF7 */
+
+	w83627hf_unselect_wd_register();
+}
+
+static void wdt_ctrl(int timeout)
+{
+	spin_lock(&io_lock);
+
+	w83627hf_select_wd_register();
+
+	outb_p(0xF6, WDT_EFER);    /* Select CRF6 */
+	outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */
+
+	w83627hf_unselect_wd_register();
+
+	spin_unlock(&io_lock);
+}
+
+static int wdt_ping(void)
+{
+	wdt_ctrl(timeout);
+	return 0;
+}
+
+static int wdt_disable(void)
+{
+	wdt_ctrl(0);
+	return 0;
+}
+
+static int wdt_set_heartbeat(int t)
+{
+	if (t < 1 || t > 255)
+		return -EINVAL;
+	timeout = t;
+	return 0;
+}
+
+static ssize_t wdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		wdt_ping();
+	}
+	return count;
+}
+
+static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_timeout;
+	static struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+							WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "W83627HF WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+		if (options & WDIOS_DISABLECARD) {
+			wdt_disable();
+			retval = 0;
+		}
+		if (options & WDIOS_ENABLECARD) {
+			wdt_ping();
+			retval = 0;
+		}
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wdt_ping();
+		break;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (wdt_set_heartbeat(new_timeout))
+			return -EINVAL;
+		wdt_ping();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	/*
+	 *	Activate
+	 */
+
+	wdt_ping();
+	return nonseekable_open(inode, file);
+}
+
+static int wdt_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		wdt_disable();
+	else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		wdt_ping();
+	}
+	expect_close = 0;
+	clear_bit(0, &wdt_is_open);
+	return 0;
+}
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_disable();	/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt_write,
+	.unlocked_ioctl	= wdt_ioctl,
+	.open		= wdt_open,
+	.release	= wdt_close,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &wdt_fops,
+};
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static int __init wdt_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO "WDT driver for the Winbond(TM) W83627HF/THF/HG Super I/O chip initialising.\n");
+
+	if (wdt_set_heartbeat(timeout)) {
+		wdt_set_heartbeat(WATCHDOG_TIMEOUT);
+		printk(KERN_INFO PFX
+		     "timeout value must be 1 <= timeout <= 255, using %d\n",
+				WATCHDOG_TIMEOUT);
+	}
+
+	if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			wdt_io);
+		ret = -EIO;
+		goto out;
+	}
+
+	w83627hf_init();
+
+	ret = register_reboot_notifier(&wdt_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto unreg_regions;
+	}
+
+	ret = misc_register(&wdt_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto unreg_reboot;
+	}
+
+	printk(KERN_INFO PFX
+			"initialized. timeout=%d sec (nowayout=%d)\n",
+							timeout, nowayout);
+
+out:
+	return ret;
+unreg_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+unreg_regions:
+	release_region(wdt_io, 1);
+	goto out;
+}
+
+static void __exit wdt_exit(void)
+{
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(wdt_io, 1);
+}
+
+module_init(wdt_init);
+module_exit(wdt_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pádraig Brady <P@draigBrady.com>");
+MODULE_DESCRIPTION("w83627hf/thf WDT driver");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c
new file mode 100644
index 0000000..3c7aa41
--- /dev/null
+++ b/drivers/watchdog/w83697hf_wdt.c
@@ -0,0 +1,467 @@
+/*
+ *	w83697hf/hg WDT driver
+ *
+ *	(c) Copyright 2006 Samuel Tardieu <sam@rfc1149.net>
+ *	(c) Copyright 2006 Marcus Junker <junker@anduras.de>
+ *
+ *	Based on w83627hf_wdt.c which is based on advantechwdt.c
+ *	which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 2003 Pádraig Brady <P@draigBrady.com>
+ *
+ *	(c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Marcus Junker nor ANDURAS AG admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define WATCHDOG_NAME "w83697hf/hg WDT"
+#define PFX WATCHDOG_NAME ": "
+#define WATCHDOG_TIMEOUT 60		/* 60 sec default timeout */
+#define WATCHDOG_EARLY_DISABLE 1	/* Disable until userland kicks in */
+
+static unsigned long wdt_is_open;
+static char expect_close;
+static DEFINE_SPINLOCK(io_lock);
+
+/* You must set this - there is no sane way to probe for this board. */
+static int wdt_io = 0x2e;
+module_param(wdt_io, int, 0);
+MODULE_PARM_DESC(wdt_io,
+		"w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)");
+
+static int timeout = WATCHDOG_TIMEOUT;	/* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. 1<= timeout <=255 (default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static int early_disable = WATCHDOG_EARLY_DISABLE;
+module_param(early_disable, int, 0);
+MODULE_PARM_DESC(early_disable,
+	"Watchdog gets disabled at boot time (default="
+				__MODULE_STRING(WATCHDOG_EARLY_DISABLE) ")");
+
+/*
+ *	Kernel methods.
+ */
+
+#define W83697HF_EFER (wdt_io + 0)  /* Extended Function Enable Register */
+#define W83697HF_EFIR (wdt_io + 0)  /* Extended Function Index Register
+							(same as EFER) */
+#define W83697HF_EFDR (wdt_io + 1)  /* Extended Function Data Register */
+
+static inline void w83697hf_unlock(void)
+{
+	outb_p(0x87, W83697HF_EFER);	/* Enter extended function mode */
+	outb_p(0x87, W83697HF_EFER);	/* Again according to manual */
+}
+
+static inline void w83697hf_lock(void)
+{
+	outb_p(0xAA, W83697HF_EFER);	/* Leave extended function mode */
+}
+
+/*
+ *	The three functions w83697hf_get_reg(), w83697hf_set_reg() and
+ *	w83697hf_write_timeout() must be called with the device unlocked.
+ */
+
+static unsigned char w83697hf_get_reg(unsigned char reg)
+{
+	outb_p(reg, W83697HF_EFIR);
+	return inb_p(W83697HF_EFDR);
+}
+
+static void w83697hf_set_reg(unsigned char reg, unsigned char data)
+{
+	outb_p(reg, W83697HF_EFIR);
+	outb_p(data, W83697HF_EFDR);
+}
+
+static void w83697hf_write_timeout(int timeout)
+{
+	/* Write Timeout counter to CRF4 */
+	w83697hf_set_reg(0xF4, timeout);
+}
+
+static void w83697hf_select_wdt(void)
+{
+	w83697hf_unlock();
+	w83697hf_set_reg(0x07, 0x08);	/* Switch to logic device 8 (GPIO2) */
+}
+
+static inline void w83697hf_deselect_wdt(void)
+{
+	w83697hf_lock();
+}
+
+static void w83697hf_init(void)
+{
+	unsigned char bbuf;
+
+	w83697hf_select_wdt();
+
+	bbuf = w83697hf_get_reg(0x29);
+	bbuf &= ~0x60;
+	bbuf |= 0x20;
+
+	/* Set pin 119 to WDTO# mode (= CR29, WDT0) */
+	w83697hf_set_reg(0x29, bbuf);
+
+	bbuf = w83697hf_get_reg(0xF3);
+	bbuf &= ~0x04;
+	w83697hf_set_reg(0xF3, bbuf);	/* Count mode is seconds */
+
+	w83697hf_deselect_wdt();
+}
+
+static void wdt_ping(void)
+{
+	spin_lock(&io_lock);
+	w83697hf_select_wdt();
+
+	w83697hf_write_timeout(timeout);
+
+	w83697hf_deselect_wdt();
+	spin_unlock(&io_lock);
+}
+
+static void wdt_enable(void)
+{
+	spin_lock(&io_lock);
+	w83697hf_select_wdt();
+
+	w83697hf_write_timeout(timeout);
+	w83697hf_set_reg(0x30, 1);	/* Enable timer */
+
+	w83697hf_deselect_wdt();
+	spin_unlock(&io_lock);
+}
+
+static void wdt_disable(void)
+{
+	spin_lock(&io_lock);
+	w83697hf_select_wdt();
+
+	w83697hf_set_reg(0x30, 0);	/* Disable timer */
+	w83697hf_write_timeout(0);
+
+	w83697hf_deselect_wdt();
+	spin_unlock(&io_lock);
+}
+
+static unsigned char wdt_running(void)
+{
+	unsigned char t;
+
+	spin_lock(&io_lock);
+	w83697hf_select_wdt();
+
+	t = w83697hf_get_reg(0xF4);	/* Read timer */
+
+	w83697hf_deselect_wdt();
+	spin_unlock(&io_lock);
+
+	return t;
+}
+
+static int wdt_set_heartbeat(int t)
+{
+	if (t < 1 || t > 255)
+		return -EINVAL;
+
+	timeout = t;
+	return 0;
+}
+
+static ssize_t wdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		wdt_ping();
+	}
+	return count;
+}
+
+static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_timeout;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+							| WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "W83697HF WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			wdt_disable();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			wdt_enable();
+			retval = 0;
+		}
+
+		return retval;
+	}
+
+	case WDIOC_KEEPALIVE:
+		wdt_ping();
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (wdt_set_heartbeat(new_timeout))
+			return -EINVAL;
+		wdt_ping();
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	/*
+	 *	Activate
+	 */
+
+	wdt_enable();
+	return nonseekable_open(inode, file);
+}
+
+static int wdt_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		wdt_disable();
+	else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		wdt_ping();
+	}
+	expect_close = 0;
+	clear_bit(0, &wdt_is_open);
+	return 0;
+}
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_disable();	/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt_write,
+	.unlocked_ioctl	= wdt_ioctl,
+	.open		= wdt_open,
+	.release	= wdt_close,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &wdt_fops,
+};
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static int w83697hf_check_wdt(void)
+{
+	if (!request_region(wdt_io, 2, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX
+			"I/O address 0x%x already in use\n", wdt_io);
+		return -EIO;
+	}
+
+	printk(KERN_DEBUG PFX
+			"Looking for watchdog at address 0x%x\n", wdt_io);
+	w83697hf_unlock();
+	if (w83697hf_get_reg(0x20) == 0x60) {
+		printk(KERN_INFO PFX
+			"watchdog found at address 0x%x\n", wdt_io);
+		w83697hf_lock();
+		return 0;
+	}
+	/* Reprotect in case it was a compatible device */
+	w83697hf_lock();
+
+	printk(KERN_INFO PFX "watchdog not found at address 0x%x\n", wdt_io);
+	release_region(wdt_io, 2);
+	return -EIO;
+}
+
+static int w83697hf_ioports[] = { 0x2e, 0x4e, 0x00 };
+
+static int __init wdt_init(void)
+{
+	int ret, i, found = 0;
+
+	printk(KERN_INFO PFX "WDT driver for W83697HF/HG initializing\n");
+
+	if (wdt_io == 0) {
+		/* we will autodetect the W83697HF/HG watchdog */
+		for (i = 0; ((!found) && (w83697hf_ioports[i] != 0)); i++) {
+			wdt_io = w83697hf_ioports[i];
+			if (!w83697hf_check_wdt())
+				found++;
+		}
+	} else {
+		if (!w83697hf_check_wdt())
+			found++;
+	}
+
+	if (!found) {
+		printk(KERN_ERR PFX "No W83697HF/HG could be found\n");
+		ret = -EIO;
+		goto out;
+	}
+
+	w83697hf_init();
+	if (early_disable) {
+		if (wdt_running())
+			printk(KERN_WARNING PFX "Stopping previously enabled watchdog until userland kicks in\n");
+		wdt_disable();
+	}
+
+	if (wdt_set_heartbeat(timeout)) {
+		wdt_set_heartbeat(WATCHDOG_TIMEOUT);
+		printk(KERN_INFO PFX
+		     "timeout value must be 1 <= timeout <= 255, using %d\n",
+							WATCHDOG_TIMEOUT);
+	}
+
+	ret = register_reboot_notifier(&wdt_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto unreg_regions;
+	}
+
+	ret = misc_register(&wdt_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						WATCHDOG_MINOR, ret);
+		goto unreg_reboot;
+	}
+
+	printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+
+out:
+	return ret;
+unreg_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+unreg_regions:
+	release_region(wdt_io, 2);
+	goto out;
+}
+
+static void __exit wdt_exit(void)
+{
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(wdt_io, 2);
+}
+
+module_init(wdt_init);
+module_exit(wdt_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marcus Junker <junker@anduras.de>, Samuel Tardieu <sam@rfc1149.net>");
+MODULE_DESCRIPTION("w83697hf/hg WDT driver");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c
new file mode 100644
index 0000000..ada8ad8
--- /dev/null
+++ b/drivers/watchdog/w83697ug_wdt.c
@@ -0,0 +1,392 @@
+/*
+ *	w83697ug/uf WDT driver
+ *
+ *	(c) Copyright 2008 Flemming Fransen <ff@nrvissing.net>
+ *              reused original code to supoprt w83697ug/uf.
+ *
+ *	Based on w83627hf_wdt.c which is based on advantechwdt.c
+ *	which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 2007 Vlad Drukker <vlad@storewiz.com>
+ *		added support for W83627THF.
+ *
+ *	(c) Copyright 2003 Pádraig Brady <P@draigBrady.com>
+ *
+ *	(c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
+ *				http://www.redhat.com
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@redhat.com>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define WATCHDOG_NAME "w83697ug/uf WDT"
+#define PFX WATCHDOG_NAME ": "
+#define WATCHDOG_TIMEOUT 60		/* 60 sec default timeout */
+
+static unsigned long wdt_is_open;
+static char expect_close;
+static DEFINE_SPINLOCK(io_lock);
+
+static int wdt_io = 0x2e;
+module_param(wdt_io, int, 0);
+MODULE_PARM_DESC(wdt_io, "w83697ug/uf WDT io port (default 0x2e)");
+
+static int timeout = WATCHDOG_TIMEOUT;	/* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. 1<= timeout <=255 (default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ *	Kernel methods.
+ */
+
+#define WDT_EFER (wdt_io+0)   /* Extended Function Enable Registers */
+#define WDT_EFIR (wdt_io+0)   /* Extended Function Index Register
+							(same as EFER) */
+#define WDT_EFDR (WDT_EFIR+1) /* Extended Function Data Register */
+
+static void w83697ug_select_wd_register(void)
+{
+	unsigned char c;
+	unsigned char version;
+
+	outb_p(0x87, WDT_EFER); /* Enter extended function mode */
+	outb_p(0x87, WDT_EFER); /* Again according to manual */
+
+	outb(0x20, WDT_EFER); 	/* check chip version	*/
+	version = inb(WDT_EFDR);
+
+	if (version == 0x68) {	/* W83697UG 		*/
+		printk(KERN_INFO PFX "Watchdog chip version 0x%02x = "
+			"W83697UG/UF found at 0x%04x\n", version, wdt_io);
+
+		outb_p(0x2b, WDT_EFER);
+		c = inb_p(WDT_EFDR);    /* select WDT0 */
+		c &= ~0x04;
+		outb_p(0x2b, WDT_EFER);
+		outb_p(c, WDT_EFDR);	/* set pin118 to WDT0 */
+
+	} else {
+		printk(KERN_ERR PFX "No W83697UG/UF could be found\n");
+		return;
+	}
+
+	outb_p(0x07, WDT_EFER); /* point to logical device number reg */
+	outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */
+	outb_p(0x30, WDT_EFER); /* select CR30 */
+	c = inb_p(WDT_EFDR);
+	outb_p(c || 0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
+}
+
+static void w83697ug_unselect_wd_register(void)
+{
+	outb_p(0xAA, WDT_EFER); /* Leave extended function mode */
+}
+
+static void w83697ug_init(void)
+{
+	unsigned char t;
+
+	w83697ug_select_wd_register();
+
+	outb_p(0xF6, WDT_EFER); /* Select CRF6 */
+	t = inb_p(WDT_EFDR);    /* read CRF6 */
+	if (t != 0) {
+		printk(KERN_INFO PFX "Watchdog already running."
+			" Resetting timeout to %d sec\n", timeout);
+		outb_p(timeout, WDT_EFDR);    /* Write back to CRF6 */
+	}
+	outb_p(0xF5, WDT_EFER); /* Select CRF5 */
+	t = inb_p(WDT_EFDR);    /* read CRF5 */
+	t &= ~0x0C;             /* set second mode &
+					disable keyboard turning off watchdog */
+	outb_p(t, WDT_EFDR);    /* Write back to CRF5 */
+
+	w83697ug_unselect_wd_register();
+}
+
+static void wdt_ctrl(int timeout)
+{
+	spin_lock(&io_lock);
+
+	w83697ug_select_wd_register();
+
+	outb_p(0xF4, WDT_EFER);    /* Select CRF4 */
+	outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF4 */
+
+	w83697ug_unselect_wd_register();
+
+	spin_unlock(&io_lock);
+}
+
+static int wdt_ping(void)
+{
+	wdt_ctrl(timeout);
+	return 0;
+}
+
+static int wdt_disable(void)
+{
+	wdt_ctrl(0);
+	return 0;
+}
+
+static int wdt_set_heartbeat(int t)
+{
+	if (t < 1 || t > 255)
+		return -EINVAL;
+
+	timeout = t;
+	return 0;
+}
+
+static ssize_t wdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		wdt_ping();
+	}
+	return count;
+}
+
+static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_timeout;
+	static const struct watchdog_info ident = {
+		.options =		WDIOF_KEEPALIVEPING |
+					WDIOF_SETTIMEOUT |
+					WDIOF_MAGICCLOSE,
+		.firmware_version =	1,
+		.identity =		"W83697UG WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			wdt_disable();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			wdt_ping();
+			retval = 0;
+		}
+
+		return retval;
+	}
+
+	case WDIOC_KEEPALIVE:
+		wdt_ping();
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if (wdt_set_heartbeat(new_timeout))
+			return -EINVAL;
+		wdt_ping();
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	/*
+	 *	Activate
+	 */
+
+	wdt_ping();
+	return nonseekable_open(inode, file);
+}
+
+static int wdt_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		wdt_disable();
+	else {
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+		wdt_ping();
+	}
+	expect_close = 0;
+	clear_bit(0, &wdt_is_open);
+	return 0;
+}
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_disable();	/* Turn the WDT off */
+
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt_write,
+	.unlocked_ioctl	= wdt_ioctl,
+	.open		= wdt_open,
+	.release	= wdt_close,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor = WATCHDOG_MINOR,
+	.name = "watchdog",
+	.fops = &wdt_fops,
+};
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static int __init wdt_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO "WDT driver for the Winbond(TM) W83697UG/UF Super I/O chip initialising.\n");
+
+	if (wdt_set_heartbeat(timeout)) {
+		wdt_set_heartbeat(WATCHDOG_TIMEOUT);
+		printk(KERN_INFO PFX
+			"timeout value must be 1<=timeout<=255, using %d\n",
+			WATCHDOG_TIMEOUT);
+	}
+
+	if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			wdt_io);
+		ret = -EIO;
+		goto out;
+	}
+
+	w83697ug_init();
+
+	ret = register_reboot_notifier(&wdt_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto unreg_regions;
+	}
+
+	ret = misc_register(&wdt_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+			WATCHDOG_MINOR, ret);
+		goto unreg_reboot;
+	}
+
+	printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+
+out:
+	return ret;
+unreg_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+unreg_regions:
+	release_region(wdt_io, 1);
+	goto out;
+}
+
+static void __exit wdt_exit(void)
+{
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(wdt_io, 1);
+}
+
+module_init(wdt_init);
+module_exit(wdt_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Flemming Frandsen <ff@nrvissing.net>");
+MODULE_DESCRIPTION("w83697ug/uf WDT driver");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c
new file mode 100644
index 0000000..24587d2
--- /dev/null
+++ b/drivers/watchdog/w83877f_wdt.c
@@ -0,0 +1,416 @@
+/*
+ *	W83877F Computer Watchdog Timer driver
+ *
+ *      Based on acquirewdt.c by Alan Cox,
+ *           and sbc60xxwdt.c by Jakob Oestergaard <jakob@unthought.net>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	The authors do NOT admit liability nor provide warranty for
+ *	any of this software. This material is provided "AS-IS" in
+ *      the hope that it may be useful for others.
+ *
+ *	(c) Copyright 2001    Scott Jennings <linuxdrivers@oro.net>
+ *
+ *           4/19 - 2001      [Initial revision]
+ *           9/27 - 2001      Added spinlocking
+ *           4/12 - 2002      [rob@osinvestor.com] Eliminate extra comments
+ *                            Eliminate fop_read
+ *                            Eliminate extra spin_unlock
+ *                            Added KERN_* tags to printks
+ *                            add CONFIG_WATCHDOG_NOWAYOUT support
+ *                            fix possible wdt_is_open race
+ *                            changed watchdog_info to correctly reflect what
+ *			      the driver offers
+ *                            added WDIOC_GETSTATUS, WDIOC_GETBOOTSTATUS,
+ *			      WDIOC_SETTIMEOUT,
+ *                            WDIOC_GETTIMEOUT, and WDIOC_SETOPTIONS ioctls
+ *           09/8 - 2003      [wim@iguana.be] cleanup of trailing spaces
+ *                            added extra printk's for startup problems
+ *                            use module_param
+ *                            made timeout (the emulated heartbeat) a
+ *			      module_param
+ *                            made the keepalive ping an internal subroutine
+ *
+ *  This WDT driver is different from most other Linux WDT
+ *  drivers in that the driver will ping the watchdog by itself,
+ *  because this particular WDT has a very short timeout (1.6
+ *  seconds) and it would be insane to count on any userspace
+ *  daemon always getting scheduled within that time frame.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <asm/system.h>
+
+#define OUR_NAME "w83877f_wdt"
+#define PFX OUR_NAME ": "
+
+#define ENABLE_W83877F_PORT 0x3F0
+#define ENABLE_W83877F 0x87
+#define DISABLE_W83877F 0xAA
+#define WDT_PING 0x443
+#define WDT_REGISTER 0x14
+#define WDT_ENABLE 0x9C
+#define WDT_DISABLE 0x8C
+
+/*
+ * The W83877F seems to be fixed at 1.6s timeout (at least on the
+ * EMACS PC-104 board I'm using). If we reset the watchdog every
+ * ~250ms we should be safe.  */
+
+#define WDT_INTERVAL (HZ/4+1)
+
+/*
+ * We must not require too good response from the userspace daemon.
+ * Here we require the userspace daemon to send us a heartbeat
+ * char to /dev/watchdog every 30 seconds.
+ */
+
+#define WATCHDOG_TIMEOUT 30            /* 30 sec default timeout */
+/* in seconds, will be multiplied by HZ to get seconds to wait for a ping */
+static int timeout = WATCHDOG_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. (1<=timeout<=3600, default="
+				__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static void wdt_timer_ping(unsigned long);
+static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
+static unsigned long next_heartbeat;
+static unsigned long wdt_is_open;
+static char wdt_expect_close;
+static DEFINE_SPINLOCK(wdt_spinlock);
+
+/*
+ *	Whack the dog
+ */
+
+static void wdt_timer_ping(unsigned long data)
+{
+	/* If we got a heartbeat pulse within the WDT_US_INTERVAL
+	 * we agree to ping the WDT
+	 */
+	if (time_before(jiffies, next_heartbeat)) {
+		/* Ping the WDT */
+		spin_lock(&wdt_spinlock);
+
+		/* Ping the WDT by reading from WDT_PING */
+		inb_p(WDT_PING);
+
+		/* Re-set the timer interval */
+		mod_timer(&timer, jiffies + WDT_INTERVAL);
+
+		spin_unlock(&wdt_spinlock);
+
+	} else
+		printk(KERN_WARNING PFX
+			"Heartbeat lost! Will not ping the watchdog\n");
+}
+
+/*
+ * Utility routines
+ */
+
+static void wdt_change(int writeval)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&wdt_spinlock, flags);
+
+	/* buy some time */
+	inb_p(WDT_PING);
+
+	/* make W83877F available */
+	outb_p(ENABLE_W83877F,  ENABLE_W83877F_PORT);
+	outb_p(ENABLE_W83877F,  ENABLE_W83877F_PORT);
+
+	/* enable watchdog */
+	outb_p(WDT_REGISTER,    ENABLE_W83877F_PORT);
+	outb_p(writeval,        ENABLE_W83877F_PORT+1);
+
+	/* lock the W8387FF away */
+	outb_p(DISABLE_W83877F, ENABLE_W83877F_PORT);
+
+	spin_unlock_irqrestore(&wdt_spinlock, flags);
+}
+
+static void wdt_startup(void)
+{
+	next_heartbeat = jiffies + (timeout * HZ);
+
+	/* Start the timer */
+	mod_timer(&timer, jiffies + WDT_INTERVAL);
+
+	wdt_change(WDT_ENABLE);
+
+	printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+}
+
+static void wdt_turnoff(void)
+{
+	/* Stop the timer */
+	del_timer(&timer);
+
+	wdt_change(WDT_DISABLE);
+
+	printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+}
+
+static void wdt_keepalive(void)
+{
+	/* user land ping */
+	next_heartbeat = jiffies + (timeout * HZ);
+}
+
+/*
+ * /dev/watchdog handling
+ */
+
+static ssize_t fop_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t ofs;
+
+			/* note: just in case someone wrote the magic
+			   character five months ago... */
+			wdt_expect_close = 0;
+
+			/* scan to see whether or not we got the
+			   magic character */
+			for (ofs = 0; ofs != count; ofs++) {
+				char c;
+				if (get_user(c, buf + ofs))
+					return -EFAULT;
+				if (c == 'V')
+					wdt_expect_close = 42;
+			}
+		}
+
+		/* someone wrote to us, we should restart timer */
+		wdt_keepalive();
+	}
+	return count;
+}
+
+static int fop_open(struct inode *inode, struct file *file)
+{
+	/* Just in case we're already talking to someone... */
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+
+	/* Good, fire up the show */
+	wdt_startup();
+	return nonseekable_open(inode, file);
+}
+
+static int fop_close(struct inode *inode, struct file *file)
+{
+	if (wdt_expect_close == 42)
+		wdt_turnoff();
+	else {
+		del_timer(&timer);
+		printk(KERN_CRIT PFX
+		  "device file closed unexpectedly. Will not stop the WDT!\n");
+	}
+	clear_bit(0, &wdt_is_open);
+	wdt_expect_close = 0;
+	return 0;
+}
+
+static long fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+							| WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "W83877F",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_SETOPTIONS:
+	{
+		int new_options, retval = -EINVAL;
+
+		if (get_user(new_options, p))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			wdt_turnoff();
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			wdt_startup();
+			retval = 0;
+		}
+
+		return retval;
+	}
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+	{
+		int new_timeout;
+
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+
+		/* arbitrary upper limit */
+		if (new_timeout < 1 || new_timeout > 3600)
+			return -EINVAL;
+
+		timeout = new_timeout;
+		wdt_keepalive();
+		/* Fall through */
+	}
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= fop_write,
+	.open		= fop_open,
+	.release	= fop_close,
+	.unlocked_ioctl	= fop_ioctl,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &wdt_fops,
+};
+
+/*
+ *	Notifier for system down
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_turnoff();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static void __exit w83877f_wdt_unload(void)
+{
+	wdt_turnoff();
+
+	/* Deregister */
+	misc_deregister(&wdt_miscdev);
+
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(WDT_PING, 1);
+	release_region(ENABLE_W83877F_PORT, 2);
+}
+
+static int __init w83877f_wdt_init(void)
+{
+	int rc = -EBUSY;
+
+	if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */
+		timeout = WATCHDOG_TIMEOUT;
+		printk(KERN_INFO PFX
+			"timeout value must be 1 <= x <= 3600, using %d\n",
+							timeout);
+	}
+
+	if (!request_region(ENABLE_W83877F_PORT, 2, "W83877F WDT")) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			ENABLE_W83877F_PORT);
+		rc = -EIO;
+		goto err_out;
+	}
+
+	if (!request_region(WDT_PING, 1, "W8387FF WDT")) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			WDT_PING);
+		rc = -EIO;
+		goto err_out_region1;
+	}
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_region2;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+							wdt_miscdev.minor, rc);
+		goto err_out_reboot;
+	}
+
+	printk(KERN_INFO PFX
+	  "WDT driver for W83877F initialised. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+
+	return 0;
+
+err_out_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out_region2:
+	release_region(WDT_PING, 1);
+err_out_region1:
+	release_region(ENABLE_W83877F_PORT, 2);
+err_out:
+	return rc;
+}
+
+module_init(w83877f_wdt_init);
+module_exit(w83877f_wdt_unload);
+
+MODULE_AUTHOR("Scott and Bill Jennings");
+MODULE_DESCRIPTION("Driver for watchdog timer in w83877f chip");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c
new file mode 100644
index 0000000..2525da5
--- /dev/null
+++ b/drivers/watchdog/w83977f_wdt.c
@@ -0,0 +1,537 @@
+/*
+ *	W83977F Watchdog Timer Driver for Winbond W83977F I/O Chip
+ *
+ *	(c) Copyright 2005  Jose Goncalves <jose.goncalves@inov.pt>
+ *
+ *      Based on w83877f_wdt.c by Scott Jennings,
+ *           and wdt977.c by Woody Suwalski
+ *
+ *			-----------------------
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#include <asm/system.h>
+
+#define WATCHDOG_VERSION  "1.00"
+#define WATCHDOG_NAME     "W83977F WDT"
+#define PFX WATCHDOG_NAME ": "
+#define DRIVER_VERSION    WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n"
+
+#define IO_INDEX_PORT     0x3F0
+#define IO_DATA_PORT      (IO_INDEX_PORT+1)
+
+#define UNLOCK_DATA       0x87
+#define LOCK_DATA         0xAA
+#define DEVICE_REGISTER   0x07
+
+#define	DEFAULT_TIMEOUT   45		/* default timeout in seconds */
+
+static	int timeout = DEFAULT_TIMEOUT;
+static	int timeoutW;			/* timeout in watchdog counter units */
+static	unsigned long timer_alive;
+static	int testmode;
+static	char expect_close;
+static	DEFINE_SPINLOCK(spinlock);
+
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Watchdog timeout in seconds (15..7635), default="
+				__MODULE_STRING(DEFAULT_TIMEOUT) ")");
+module_param(testmode, int, 0);
+MODULE_PARM_DESC(testmode, "Watchdog testmode (1 = no reboot), default=0");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * Start the watchdog
+ */
+
+static int wdt_start(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* Unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/*
+	 * Select device Aux2 (device=8) to set watchdog regs F2, F3 and F4.
+	 * F2 has the timeout in watchdog counter units.
+	 * F3 is set to enable watchdog LED blink at timeout.
+	 * F4 is used to just clear the TIMEOUT'ed state (bit 0).
+	 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(timeoutW, IO_DATA_PORT);
+	outb_p(0xF3, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF4, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+
+	/* Set device Aux2 active */
+	outb_p(0x30, IO_INDEX_PORT);
+	outb_p(0x01, IO_DATA_PORT);
+
+	/*
+	 * Select device Aux1 (dev=7) to set GP16 as the watchdog output
+	 * (in reg E6) and GP13 as the watchdog LED output (in reg E3).
+	 * Map GP16 at pin 119.
+	 * In test mode watch the bit 0 on F4 to indicate "triggered" or
+	 * check watchdog LED on SBC.
+	 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x07, IO_DATA_PORT);
+	if (!testmode) {
+		unsigned pin_map;
+
+		outb_p(0xE6, IO_INDEX_PORT);
+		outb_p(0x0A, IO_DATA_PORT);
+		outb_p(0x2C, IO_INDEX_PORT);
+		pin_map = inb_p(IO_DATA_PORT);
+		pin_map |= 0x10;
+		pin_map &= ~(0x20);
+		outb_p(0x2C, IO_INDEX_PORT);
+		outb_p(pin_map, IO_DATA_PORT);
+	}
+	outb_p(0xE3, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+
+	/* Set device Aux1 active */
+	outb_p(0x30, IO_INDEX_PORT);
+	outb_p(0x01, IO_DATA_PORT);
+
+	/* Lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	printk(KERN_INFO PFX "activated.\n");
+
+	return 0;
+}
+
+/*
+ * Stop the watchdog
+ */
+
+static int wdt_stop(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* Unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/*
+	 * Select device Aux2 (device=8) to set watchdog regs F2, F3 and F4.
+	 * F2 is reset to its default value (watchdog timer disabled).
+	 * F3 is reset to its default state.
+	 * F4 clears the TIMEOUT'ed state (bit 0) - back to default.
+	 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(0xFF, IO_DATA_PORT);
+	outb_p(0xF3, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+	outb_p(0xF4, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+
+	/*
+	 * Select device Aux1 (dev=7) to set GP16 (in reg E6) and
+	 * Gp13 (in reg E3) as inputs.
+	 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x07, IO_DATA_PORT);
+	if (!testmode) {
+		outb_p(0xE6, IO_INDEX_PORT);
+		outb_p(0x01, IO_DATA_PORT);
+	}
+	outb_p(0xE3, IO_INDEX_PORT);
+	outb_p(0x01, IO_DATA_PORT);
+
+	/* Lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	printk(KERN_INFO PFX "shutdown.\n");
+
+	return 0;
+}
+
+/*
+ * Send a keepalive ping to the watchdog
+ * This is done by simply re-writing the timeout to reg. 0xF2
+ */
+
+static int wdt_keepalive(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* Unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/* Select device Aux2 (device=8) to kick watchdog reg F2 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(timeoutW, IO_DATA_PORT);
+
+	/* Lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	return 0;
+}
+
+/*
+ * Set the watchdog timeout value
+ */
+
+static int wdt_set_timeout(int t)
+{
+	int tmrval;
+
+	/*
+	 * Convert seconds to watchdog counter time units, rounding up.
+	 * On PCM-5335 watchdog units are 30 seconds/step with 15 sec startup
+	 * value. This information is supplied in the PCM-5335 manual and was
+	 * checked by me on a real board. This is a bit strange because W83977f
+	 * datasheet says counter unit is in minutes!
+	 */
+	if (t < 15)
+		return -EINVAL;
+
+	tmrval = ((t + 15) + 29) / 30;
+
+	if (tmrval > 255)
+		return -EINVAL;
+
+	/*
+	 * timeout is the timeout in seconds,
+	 * timeoutW is the timeout in watchdog counter units.
+	 */
+	timeoutW = tmrval;
+	timeout = (timeoutW * 30) - 15;
+	return 0;
+}
+
+/*
+ * Get the watchdog status
+ */
+
+static int wdt_get_status(int *status)
+{
+	int new_status;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* Unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/* Select device Aux2 (device=8) to read watchdog reg F4 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF4, IO_INDEX_PORT);
+	new_status = inb_p(IO_DATA_PORT);
+
+	/* Lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	*status = 0;
+	if (new_status & 1)
+		*status |= WDIOF_CARDRESET;
+
+	return 0;
+}
+
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static int wdt_open(struct inode *inode, struct file *file)
+{
+	/* If the watchdog is alive we don't need to start it again */
+	if (test_and_set_bit(0, &timer_alive))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+static int wdt_release(struct inode *inode, struct file *file)
+{
+	/*
+	 * Shut off the timer.
+	 * Lock it in if it's a module and we set nowayout
+	 */
+	if (expect_close == 42) {
+		wdt_stop();
+		clear_bit(0, &timer_alive);
+	} else {
+		wdt_keepalive();
+		printk(KERN_CRIT PFX
+			"unexpected close, not stopping watchdog!\n");
+	}
+	expect_close = 0;
+	return 0;
+}
+
+/*
+ *      wdt_write:
+ *      @file: file handle to the watchdog
+ *      @buf: buffer to write (unused as data does not matter here
+ *      @count: count of bytes
+ *      @ppos: pointer to the position to write. No seeks allowed
+ *
+ *      A write to a watchdog device is defined as a keepalive signal. Any
+ *      write of data will do, as we we don't define content meaning.
+ */
+
+static ssize_t wdt_write(struct file *file, const char __user *buf,
+			    size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t ofs;
+
+			/* note: just in case someone wrote the
+			   magic character long ago */
+			expect_close = 0;
+
+			/* scan to see whether or not we got the
+			   magic character */
+			for (ofs = 0; ofs != count; ofs++) {
+				char c;
+				if (get_user(c, buf + ofs))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+
+		/* someone wrote to us, we should restart timer */
+		wdt_keepalive();
+	}
+	return count;
+}
+
+/*
+ *      wdt_ioctl:
+ *      @inode: inode of the device
+ *      @file: file handle to the device
+ *      @cmd: watchdog command
+ *      @arg: argument pointer
+ *
+ *      The watchdog API defines a common set of functions for all watchdogs
+ *      according to their available features.
+ */
+
+static struct watchdog_info ident = {
+	.options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
+	.firmware_version =	1,
+	.identity = WATCHDOG_NAME,
+};
+
+static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int status;
+	int new_options, retval = -EINVAL;
+	int new_timeout;
+	union {
+		struct watchdog_info __user *ident;
+		int __user *i;
+	} uarg;
+
+	uarg.i = (int __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(uarg.ident, &ident,
+						sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+		wdt_get_status(&status);
+		return put_user(status, uarg.i);
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, uarg.i);
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(new_options, uarg.i))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			wdt_stop();
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			wdt_start();
+			retval = 0;
+		}
+
+		return retval;
+
+	case WDIOC_KEEPALIVE:
+		wdt_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, uarg.i))
+			return -EFAULT;
+
+		if (wdt_set_timeout(new_timeout))
+		    return -EINVAL;
+
+		wdt_keepalive();
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, uarg.i);
+
+	default:
+		return -ENOTTY;
+
+	}
+}
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_stop();
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt_write,
+	.unlocked_ioctl	= wdt_ioctl,
+	.open		= wdt_open,
+	.release	= wdt_release,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &wdt_fops,
+};
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+static int __init w83977f_wdt_init(void)
+{
+	int rc;
+
+	printk(KERN_INFO PFX DRIVER_VERSION);
+
+	/*
+	 * Check that the timeout value is within it's range;
+	 * if not reset to the default
+	 */
+	if (wdt_set_timeout(timeout)) {
+		wdt_set_timeout(DEFAULT_TIMEOUT);
+		printk(KERN_INFO PFX
+		    "timeout value must be 15 <= timeout <= 7635, using %d\n",
+							DEFAULT_TIMEOUT);
+	}
+
+	if (!request_region(IO_INDEX_PORT, 2, WATCHDOG_NAME)) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			IO_INDEX_PORT);
+		rc = -EIO;
+		goto err_out;
+	}
+
+	rc = register_reboot_notifier(&wdt_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_region;
+	}
+
+	rc = misc_register(&wdt_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						wdt_miscdev.minor, rc);
+		goto err_out_reboot;
+	}
+
+	printk(KERN_INFO PFX
+		"initialized. timeout=%d sec (nowayout=%d testmode=%d)\n",
+					timeout, nowayout, testmode);
+
+	return 0;
+
+err_out_reboot:
+	unregister_reboot_notifier(&wdt_notifier);
+err_out_region:
+	release_region(IO_INDEX_PORT, 2);
+err_out:
+	return rc;
+}
+
+static void __exit w83977f_wdt_exit(void)
+{
+	wdt_stop();
+	misc_deregister(&wdt_miscdev);
+	unregister_reboot_notifier(&wdt_notifier);
+	release_region(IO_INDEX_PORT, 2);
+}
+
+module_init(w83977f_wdt_init);
+module_exit(w83977f_wdt_exit);
+
+MODULE_AUTHOR("Jose Goncalves <jose.goncalves@inov.pt>");
+MODULE_DESCRIPTION("Driver for watchdog timer in W83977F I/O chip");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c
new file mode 100644
index 0000000..42e940c
--- /dev/null
+++ b/drivers/watchdog/wafer5823wdt.c
@@ -0,0 +1,333 @@
+/*
+ *	ICP Wafer 5823 Single Board Computer WDT driver
+ *	http://www.icpamerica.com/wafer_5823.php
+ *	May also work on other similar models
+ *
+ *	(c) Copyright 2002 Justin Cormack <justin@street-vision.com>
+ *
+ *	Release 0.02
+ *
+ *	Based on advantechwdt.c which is based on wdt.c.
+ *	Original copyright messages:
+ *
+ *	(c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#define WATCHDOG_NAME "Wafer 5823 WDT"
+#define PFX WATCHDOG_NAME ": "
+#define WD_TIMO 60			/* 60 sec default timeout */
+
+static unsigned long wafwdt_is_open;
+static char expect_close;
+static DEFINE_SPINLOCK(wafwdt_lock);
+
+/*
+ *	You must set these - there is no sane way to probe for this board.
+ *
+ *	To enable, write the timeout value in seconds (1 to 255) to I/O
+ *	port WDT_START, then read the port to start the watchdog. To pat
+ *	the dog, read port WDT_STOP to stop the timer, then read WDT_START
+ *	to restart it again.
+ */
+
+static int wdt_stop = 0x843;
+static int wdt_start = 0x443;
+
+static int timeout = WD_TIMO;  /* in seconds */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+		"Watchdog timeout in seconds. 1 <= timeout <= 255, default="
+				__MODULE_STRING(WD_TIMO) ".");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static void wafwdt_ping(void)
+{
+	/* pat watchdog */
+	spin_lock(&wafwdt_lock);
+	inb_p(wdt_stop);
+	inb_p(wdt_start);
+	spin_unlock(&wafwdt_lock);
+}
+
+static void wafwdt_start(void)
+{
+	/* start up watchdog */
+	outb_p(timeout, wdt_start);
+	inb_p(wdt_start);
+}
+
+static void wafwdt_stop(void)
+{
+	/* stop watchdog */
+	inb_p(wdt_stop);
+}
+
+static ssize_t wafwdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	/* See if we got the magic character 'V' and reload the timer */
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			/* scan to see whether or not we got the magic
+			   character */
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		/* Well, anyhow someone wrote to us, we should
+		   return that favour */
+		wafwdt_ping();
+	}
+	return count;
+}
+
+static long wafwdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int new_timeout;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+							WDIOF_MAGICCLOSE,
+		.firmware_version = 1,
+		.identity = "Wafer 5823 WDT",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &ident, sizeof(ident)))
+			return -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+
+	case WDIOC_SETOPTIONS:
+	{
+		int options, retval = -EINVAL;
+
+		if (get_user(options, p))
+			return -EFAULT;
+
+		if (options & WDIOS_DISABLECARD) {
+			wafwdt_start();
+			retval = 0;
+		}
+
+		if (options & WDIOS_ENABLECARD) {
+			wafwdt_stop();
+			retval = 0;
+		}
+
+		return retval;
+	}
+
+	case WDIOC_KEEPALIVE:
+		wafwdt_ping();
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, p))
+			return -EFAULT;
+		if ((new_timeout < 1) || (new_timeout > 255))
+			return -EINVAL;
+		timeout = new_timeout;
+		wafwdt_stop();
+		wafwdt_start();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, p);
+
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+static int wafwdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &wafwdt_is_open))
+		return -EBUSY;
+
+	/*
+	 *      Activate
+	 */
+	wafwdt_start();
+	return nonseekable_open(inode, file);
+}
+
+static int wafwdt_close(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42)
+		wafwdt_stop();
+	else {
+		printk(KERN_CRIT PFX
+		    "WDT device closed unexpectedly.  WDT will not stop!\n");
+		wafwdt_ping();
+	}
+	clear_bit(0, &wafwdt_is_open);
+	expect_close = 0;
+	return 0;
+}
+
+/*
+ *	Notifier for system down
+ */
+
+static int wafwdt_notify_sys(struct notifier_block *this, unsigned long code,
+								void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wafwdt_stop();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+static const struct file_operations wafwdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wafwdt_write,
+	.unlocked_ioctl	= wafwdt_ioctl,
+	.open		= wafwdt_open,
+	.release	= wafwdt_close,
+};
+
+static struct miscdevice wafwdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &wafwdt_fops,
+};
+
+/*
+ *	The WDT needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wafwdt_notifier = {
+	.notifier_call = wafwdt_notify_sys,
+};
+
+static int __init wafwdt_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO
+	  "WDT driver for Wafer 5823 single board computer initialising.\n");
+
+	if (timeout < 1 || timeout > 255) {
+		timeout = WD_TIMO;
+		printk(KERN_INFO PFX
+			"timeout value must be 1 <= x <= 255, using %d\n",
+								timeout);
+	}
+
+	if (wdt_stop != wdt_start) {
+		if (!request_region(wdt_stop, 1, "Wafer 5823 WDT")) {
+			printk(KERN_ERR PFX
+				"I/O address 0x%04x already in use\n",
+								wdt_stop);
+			ret = -EIO;
+			goto error;
+		}
+	}
+
+	if (!request_region(wdt_start, 1, "Wafer 5823 WDT")) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+			wdt_start);
+		ret = -EIO;
+		goto error2;
+	}
+
+	ret = register_reboot_notifier(&wafwdt_notifier);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto error3;
+	}
+
+	ret = misc_register(&wafwdt_miscdev);
+	if (ret != 0) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						WATCHDOG_MINOR, ret);
+		goto error4;
+	}
+
+	printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+		timeout, nowayout);
+
+	return ret;
+error4:
+	unregister_reboot_notifier(&wafwdt_notifier);
+error3:
+	release_region(wdt_start, 1);
+error2:
+	if (wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+error:
+	return ret;
+}
+
+static void __exit wafwdt_exit(void)
+{
+	misc_deregister(&wafwdt_miscdev);
+	unregister_reboot_notifier(&wafwdt_notifier);
+	if (wdt_stop != wdt_start)
+		release_region(wdt_stop, 1);
+	release_region(wdt_start, 1);
+}
+
+module_init(wafwdt_init);
+module_exit(wafwdt_exit);
+
+MODULE_AUTHOR("Justin Cormack");
+MODULE_DESCRIPTION("ICP Wafer 5823 Single Board Computer WDT driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+/* end of wafer5823wdt.c */
diff --git a/drivers/watchdog/wd501p.h b/drivers/watchdog/wd501p.h
new file mode 100644
index 0000000..db34853
--- /dev/null
+++ b/drivers/watchdog/wd501p.h
@@ -0,0 +1,51 @@
+/*
+ *	Industrial Computer Source WDT500/501 driver
+ *
+ *	(c) Copyright 1995	CymruNET Ltd
+ *				Innovation Centre
+ *				Singleton Park
+ *				Swansea
+ *				Wales
+ *				UK
+ *				SA2 8PP
+ *
+ *	http://www.cymru.net
+ *
+ *	This driver is provided under the GNU General Public License, incorporated
+ *	herein by reference. The driver is provided without warranty or
+ *	support.
+ *
+ *	Release 0.04.
+ *
+ */
+
+
+#define WDT_COUNT0		(io+0)
+#define WDT_COUNT1		(io+1)
+#define WDT_COUNT2		(io+2)
+#define WDT_CR			(io+3)
+#define WDT_SR			(io+4)	/* Start buzzer on PCI write */
+#define WDT_RT			(io+5)	/* Stop buzzer on PCI write */
+#define WDT_BUZZER		(io+6)	/* PCI only: rd=disable, wr=enable */
+#define WDT_DC			(io+7)
+
+/* The following are only on the PCI card, they're outside of I/O space on
+ * the ISA card: */
+#define WDT_CLOCK		(io+12)	/* COUNT2: rd=16.67MHz, wr=2.0833MHz */
+/* inverted opto isolated reset output: */
+#define WDT_OPTONOTRST		(io+13)	/* wr=enable, rd=disable */
+/* opto isolated reset output: */
+#define WDT_OPTORST		(io+14)	/* wr=enable, rd=disable */
+/* programmable outputs: */
+#define WDT_PROGOUT		(io+15)	/* wr=enable, rd=disable */
+
+								/* FAN 501 500 */
+#define WDC_SR_WCCR		1	/* Active low */	/*  X   X   X  */
+#define WDC_SR_TGOOD		2				/*  X   X   -  */
+#define WDC_SR_ISOI0		4				/*  X   X   X  */
+#define WDC_SR_ISII1		8				/*  X   X   X  */
+#define WDC_SR_FANGOOD		16				/*  X   -   -  */
+#define WDC_SR_PSUOVER		32	/* Active low */	/*  X   X   -  */
+#define WDC_SR_PSUUNDR		64	/* Active low */	/*  X   X   -  */
+#define WDC_SR_IRQ		128	/* Active low */	/*  X   X   X  */
+
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
new file mode 100644
index 0000000..5d3b1a8
--- /dev/null
+++ b/drivers/watchdog/wdrtas.c
@@ -0,0 +1,674 @@
+/*
+ * FIXME: add wdrtas_get_status and wdrtas_get_boot_status as soon as
+ * RTAS calls are available
+ */
+
+/*
+ * RTAS watchdog driver
+ *
+ * (C) Copyright IBM Corp. 2005
+ * device driver to exploit watchdog RTAS functions
+ *
+ * Authors : Utz Bacher <utz.bacher@de.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <linux/uaccess.h>
+
+#include <asm/rtas.h>
+
+#define WDRTAS_MAGIC_CHAR		42
+#define WDRTAS_SUPPORTED_MASK		(WDIOF_SETTIMEOUT | \
+					 WDIOF_MAGICCLOSE)
+
+MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
+MODULE_DESCRIPTION("RTAS watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
+
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+static int wdrtas_nowayout = 1;
+#else
+static int wdrtas_nowayout = 0;
+#endif
+
+static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0);
+static char wdrtas_expect_close;
+
+static int wdrtas_interval;
+
+#define WDRTAS_THERMAL_SENSOR		3
+static int wdrtas_token_get_sensor_state;
+#define WDRTAS_SURVEILLANCE_IND		9000
+static int wdrtas_token_set_indicator;
+#define WDRTAS_SP_SPI			28
+static int wdrtas_token_get_sp;
+static int wdrtas_token_event_scan;
+
+#define WDRTAS_DEFAULT_INTERVAL		300
+
+#define WDRTAS_LOGBUFFER_LEN		128
+static char wdrtas_logbuffer[WDRTAS_LOGBUFFER_LEN];
+
+
+/*** watchdog access functions */
+
+/**
+ * wdrtas_set_interval - sets the watchdog interval
+ * @interval: new interval
+ *
+ * returns 0 on success, <0 on failures
+ *
+ * wdrtas_set_interval sets the watchdog keepalive interval by calling the
+ * RTAS function set-indicator (surveillance). The unit of interval is
+ * seconds.
+ */
+
+static int wdrtas_set_interval(int interval)
+{
+	long result;
+	static int print_msg = 10;
+
+	/* rtas uses minutes */
+	interval = (interval + 59) / 60;
+
+	result = rtas_call(wdrtas_token_set_indicator, 3, 1, NULL,
+			   WDRTAS_SURVEILLANCE_IND, 0, interval);
+	if (result < 0 && print_msg) {
+		printk(KERN_ERR "wdrtas: setting the watchdog to %i "
+		       "timeout failed: %li\n", interval, result);
+		print_msg--;
+	}
+
+	return result;
+}
+
+/**
+ * wdrtas_get_interval - returns the current watchdog interval
+ * @fallback_value: value (in seconds) to use, if the RTAS call fails
+ *
+ * returns the interval
+ *
+ * wdrtas_get_interval returns the current watchdog keepalive interval
+ * as reported by the RTAS function ibm,get-system-parameter. The unit
+ * of the return value is seconds.
+ */
+static int wdrtas_get_interval(int fallback_value)
+{
+	long result;
+	char value[4];
+
+	result = rtas_call(wdrtas_token_get_sp, 3, 1, NULL,
+			   WDRTAS_SP_SPI, (void *)__pa(&value), 4);
+	if (value[0] != 0 || value[1] != 2 || value[3] != 0 || result < 0) {
+		printk(KERN_WARNING "wdrtas: could not get sp_spi watchdog "
+		       "timeout (%li). Continuing\n", result);
+		return fallback_value;
+	}
+
+	/* rtas uses minutes */
+	return ((int)value[2]) * 60;
+}
+
+/**
+ * wdrtas_timer_start - starts watchdog
+ *
+ * wdrtas_timer_start starts the watchdog by calling the RTAS function
+ * set-interval (surveillance)
+ */
+static void wdrtas_timer_start(void)
+{
+	wdrtas_set_interval(wdrtas_interval);
+}
+
+/**
+ * wdrtas_timer_stop - stops watchdog
+ *
+ * wdrtas_timer_stop stops the watchdog timer by calling the RTAS function
+ * set-interval (surveillance)
+ */
+static void wdrtas_timer_stop(void)
+{
+	wdrtas_set_interval(0);
+}
+
+/**
+ * wdrtas_log_scanned_event - logs an event we received during keepalive
+ *
+ * wdrtas_log_scanned_event prints a message to the log buffer dumping
+ * the results of the last event-scan call
+ */
+static void wdrtas_log_scanned_event(void)
+{
+	int i;
+
+	for (i = 0; i < WDRTAS_LOGBUFFER_LEN; i += 16)
+		printk(KERN_INFO "wdrtas: dumping event (line %i/%i), data = "
+		       "%02x %02x %02x %02x  %02x %02x %02x %02x   "
+		       "%02x %02x %02x %02x  %02x %02x %02x %02x\n",
+		       (i / 16) + 1, (WDRTAS_LOGBUFFER_LEN / 16),
+		       wdrtas_logbuffer[i + 0], wdrtas_logbuffer[i + 1],
+		       wdrtas_logbuffer[i + 2], wdrtas_logbuffer[i + 3],
+		       wdrtas_logbuffer[i + 4], wdrtas_logbuffer[i + 5],
+		       wdrtas_logbuffer[i + 6], wdrtas_logbuffer[i + 7],
+		       wdrtas_logbuffer[i + 8], wdrtas_logbuffer[i + 9],
+		       wdrtas_logbuffer[i + 10], wdrtas_logbuffer[i + 11],
+		       wdrtas_logbuffer[i + 12], wdrtas_logbuffer[i + 13],
+		       wdrtas_logbuffer[i + 14], wdrtas_logbuffer[i + 15]);
+}
+
+/**
+ * wdrtas_timer_keepalive - resets watchdog timer to keep system alive
+ *
+ * wdrtas_timer_keepalive restarts the watchdog timer by calling the
+ * RTAS function event-scan and repeats these calls as long as there are
+ * events available. All events will be dumped.
+ */
+static void wdrtas_timer_keepalive(void)
+{
+	long result;
+
+	do {
+		result = rtas_call(wdrtas_token_event_scan, 4, 1, NULL,
+				   RTAS_EVENT_SCAN_ALL_EVENTS, 0,
+				   (void *)__pa(wdrtas_logbuffer),
+				   WDRTAS_LOGBUFFER_LEN);
+		if (result < 0)
+			printk(KERN_ERR "wdrtas: event-scan failed: %li\n",
+			       result);
+		if (result == 0)
+			wdrtas_log_scanned_event();
+	} while (result == 0);
+}
+
+/**
+ * wdrtas_get_temperature - returns current temperature
+ *
+ * returns temperature or <0 on failures
+ *
+ * wdrtas_get_temperature returns the current temperature in Fahrenheit. It
+ * uses the RTAS call get-sensor-state, token 3 to do so
+ */
+static int wdrtas_get_temperature(void)
+{
+	long result;
+	int temperature = 0;
+
+	result = rtas_call(wdrtas_token_get_sensor_state, 2, 2,
+			   (void *)__pa(&temperature),
+			   WDRTAS_THERMAL_SENSOR, 0);
+
+	if (result < 0)
+		printk(KERN_WARNING "wdrtas: reading the thermal sensor "
+		       "faild: %li\n", result);
+	else
+		temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */
+
+	return temperature;
+}
+
+/**
+ * wdrtas_get_status - returns the status of the watchdog
+ *
+ * returns a bitmask of defines WDIOF_... as defined in
+ * include/linux/watchdog.h
+ */
+static int wdrtas_get_status(void)
+{
+	return 0; /* TODO */
+}
+
+/**
+ * wdrtas_get_boot_status - returns the reason for the last boot
+ *
+ * returns a bitmask of defines WDIOF_... as defined in
+ * include/linux/watchdog.h, indicating why the watchdog rebooted the system
+ */
+static int wdrtas_get_boot_status(void)
+{
+	return 0; /* TODO */
+}
+
+/*** watchdog API and operations stuff */
+
+/* wdrtas_write - called when watchdog device is written to
+ * @file: file structure
+ * @buf: user buffer with data
+ * @len: amount to data written
+ * @ppos: position in file
+ *
+ * returns the number of successfully processed characters, which is always
+ * the number of bytes passed to this function
+ *
+ * wdrtas_write processes all the data given to it and looks for the magic
+ * character 'V'. This character allows the watchdog device to be closed
+ * properly.
+ */
+static ssize_t wdrtas_write(struct file *file, const char __user *buf,
+	     size_t len, loff_t *ppos)
+{
+	int i;
+	char c;
+
+	if (!len)
+		goto out;
+
+	if (!wdrtas_nowayout) {
+		wdrtas_expect_close = 0;
+		/* look for 'V' */
+		for (i = 0; i < len; i++) {
+			if (get_user(c, buf + i))
+				return -EFAULT;
+			/* allow to close device */
+			if (c == 'V')
+				wdrtas_expect_close = WDRTAS_MAGIC_CHAR;
+		}
+	}
+
+	wdrtas_timer_keepalive();
+
+out:
+	return len;
+}
+
+/**
+ * wdrtas_ioctl - ioctl function for the watchdog device
+ * @file: file structure
+ * @cmd: command for ioctl
+ * @arg: argument pointer
+ *
+ * returns 0 on success, <0 on failure
+ *
+ * wdrtas_ioctl implements the watchdog API ioctls
+ */
+
+static long wdrtas_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int __user *argp = (void __user *)arg;
+	int i;
+	static struct watchdog_info wdinfo = {
+		.options = WDRTAS_SUPPORTED_MASK,
+		.firmware_version = 0,
+		.identity = "wdrtas",
+	};
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		if (copy_to_user(argp, &wdinfo, sizeof(wdinfo)))
+			return -EFAULT;
+		return 0;
+
+	case WDIOC_GETSTATUS:
+		i = wdrtas_get_status();
+		return put_user(i, argp);
+
+	case WDIOC_GETBOOTSTATUS:
+		i = wdrtas_get_boot_status();
+		return put_user(i, argp);
+
+	case WDIOC_GETTEMP:
+		if (wdrtas_token_get_sensor_state == RTAS_UNKNOWN_SERVICE)
+			return -EOPNOTSUPP;
+
+		i = wdrtas_get_temperature();
+		return put_user(i, argp);
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(i, argp))
+			return -EFAULT;
+		if (i & WDIOS_DISABLECARD)
+			wdrtas_timer_stop();
+		if (i & WDIOS_ENABLECARD) {
+			wdrtas_timer_keepalive();
+			wdrtas_timer_start();
+		}
+		/* not implemented. Done by H8
+		if (i & WDIOS_TEMPPANIC) {
+		} */
+		return 0;
+
+	case WDIOC_KEEPALIVE:
+		wdrtas_timer_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(i, argp))
+			return -EFAULT;
+
+		if (wdrtas_set_interval(i))
+			return -EINVAL;
+
+		wdrtas_timer_keepalive();
+
+		if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE)
+			wdrtas_interval = i;
+		else
+			wdrtas_interval = wdrtas_get_interval(i);
+		/* fallthrough */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(wdrtas_interval, argp);
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+/**
+ * wdrtas_open - open function of watchdog device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success, -EBUSY if the file has been opened already, <0 on
+ * other failures
+ *
+ * function called when watchdog device is opened
+ */
+static int wdrtas_open(struct inode *inode, struct file *file)
+{
+	/* only open once */
+	if (atomic_inc_return(&wdrtas_miscdev_open) > 1) {
+		atomic_dec(&wdrtas_miscdev_open);
+		return -EBUSY;
+	}
+
+	wdrtas_timer_start();
+	wdrtas_timer_keepalive();
+
+	return nonseekable_open(inode, file);
+}
+
+/**
+ * wdrtas_close - close function of watchdog device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success
+ *
+ * close function. Always succeeds
+ */
+static int wdrtas_close(struct inode *inode, struct file *file)
+{
+	/* only stop watchdog, if this was announced using 'V' before */
+	if (wdrtas_expect_close == WDRTAS_MAGIC_CHAR)
+		wdrtas_timer_stop();
+	else {
+		printk(KERN_WARNING "wdrtas: got unexpected close. Watchdog "
+		       "not stopped.\n");
+		wdrtas_timer_keepalive();
+	}
+
+	wdrtas_expect_close = 0;
+	atomic_dec(&wdrtas_miscdev_open);
+	return 0;
+}
+
+/**
+ * wdrtas_temp_read - gives back the temperature in fahrenheit
+ * @file: file structure
+ * @buf: user buffer
+ * @count: number of bytes to be read
+ * @ppos: position in file
+ *
+ * returns always 1 or -EFAULT in case of user space copy failures, <0 on
+ * other failures
+ *
+ * wdrtas_temp_read gives the temperature to the users by copying this
+ * value as one byte into the user space buffer. The unit is Fahrenheit...
+ */
+static ssize_t wdrtas_temp_read(struct file *file, char __user *buf,
+		 size_t count, loff_t *ppos)
+{
+	int temperature = 0;
+
+	temperature = wdrtas_get_temperature();
+	if (temperature < 0)
+		return temperature;
+
+	if (copy_to_user(buf, &temperature, 1))
+		return -EFAULT;
+
+	return 1;
+}
+
+/**
+ * wdrtas_temp_open - open function of temperature device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success, <0 on failure
+ *
+ * function called when temperature device is opened
+ */
+static int wdrtas_temp_open(struct inode *inode, struct file *file)
+{
+	return nonseekable_open(inode, file);
+}
+
+/**
+ * wdrtas_temp_close - close function of temperature device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success
+ *
+ * close function. Always succeeds
+ */
+static int wdrtas_temp_close(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+/**
+ * wdrtas_reboot - reboot notifier function
+ * @nb: notifier block structure
+ * @code: reboot code
+ * @ptr: unused
+ *
+ * returns NOTIFY_DONE
+ *
+ * wdrtas_reboot stops the watchdog in case of a reboot
+ */
+static int wdrtas_reboot(struct notifier_block *this,
+					unsigned long code, void *ptr)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdrtas_timer_stop();
+
+	return NOTIFY_DONE;
+}
+
+/*** initialization stuff */
+
+static const struct file_operations wdrtas_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdrtas_write,
+	.unlocked_ioctl	= wdrtas_ioctl,
+	.open		= wdrtas_open,
+	.release	= wdrtas_close,
+};
+
+static struct miscdevice wdrtas_miscdev = {
+	.minor =	WATCHDOG_MINOR,
+	.name =		"watchdog",
+	.fops =		&wdrtas_fops,
+};
+
+static const struct file_operations wdrtas_temp_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= wdrtas_temp_read,
+	.open		= wdrtas_temp_open,
+	.release	= wdrtas_temp_close,
+};
+
+static struct miscdevice wdrtas_tempdev = {
+	.minor =	TEMP_MINOR,
+	.name =		"temperature",
+	.fops =		&wdrtas_temp_fops,
+};
+
+static struct notifier_block wdrtas_notifier = {
+	.notifier_call =	wdrtas_reboot,
+};
+
+/**
+ * wdrtas_get_tokens - reads in RTAS tokens
+ *
+ * returns 0 on succes, <0 on failure
+ *
+ * wdrtas_get_tokens reads in the tokens for the RTAS calls used in
+ * this watchdog driver. It tolerates, if "get-sensor-state" and
+ * "ibm,get-system-parameter" are not available.
+ */
+static int wdrtas_get_tokens(void)
+{
+	wdrtas_token_get_sensor_state = rtas_token("get-sensor-state");
+	if (wdrtas_token_get_sensor_state == RTAS_UNKNOWN_SERVICE) {
+		printk(KERN_WARNING "wdrtas: couldn't get token for "
+		       "get-sensor-state. Trying to continue without "
+		       "temperature support.\n");
+	}
+
+	wdrtas_token_get_sp = rtas_token("ibm,get-system-parameter");
+	if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE) {
+		printk(KERN_WARNING "wdrtas: couldn't get token for "
+		       "ibm,get-system-parameter. Trying to continue with "
+		       "a default timeout value of %i seconds.\n",
+		       WDRTAS_DEFAULT_INTERVAL);
+	}
+
+	wdrtas_token_set_indicator = rtas_token("set-indicator");
+	if (wdrtas_token_set_indicator == RTAS_UNKNOWN_SERVICE) {
+		printk(KERN_ERR "wdrtas: couldn't get token for "
+		       "set-indicator. Terminating watchdog code.\n");
+		return -EIO;
+	}
+
+	wdrtas_token_event_scan = rtas_token("event-scan");
+	if (wdrtas_token_event_scan == RTAS_UNKNOWN_SERVICE) {
+		printk(KERN_ERR "wdrtas: couldn't get token for event-scan. "
+		       "Terminating watchdog code.\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/**
+ * wdrtas_unregister_devs - unregisters the misc dev handlers
+ *
+ * wdrtas_register_devs unregisters the watchdog and temperature watchdog
+ * misc devs
+ */
+static void wdrtas_unregister_devs(void)
+{
+	misc_deregister(&wdrtas_miscdev);
+	if (wdrtas_token_get_sensor_state != RTAS_UNKNOWN_SERVICE)
+		misc_deregister(&wdrtas_tempdev);
+}
+
+/**
+ * wdrtas_register_devs - registers the misc dev handlers
+ *
+ * returns 0 on succes, <0 on failure
+ *
+ * wdrtas_register_devs registers the watchdog and temperature watchdog
+ * misc devs
+ */
+static int wdrtas_register_devs(void)
+{
+	int result;
+
+	result = misc_register(&wdrtas_miscdev);
+	if (result) {
+		printk(KERN_ERR "wdrtas: couldn't register watchdog misc "
+		       "device. Terminating watchdog code.\n");
+		return result;
+	}
+
+	if (wdrtas_token_get_sensor_state != RTAS_UNKNOWN_SERVICE) {
+		result = misc_register(&wdrtas_tempdev);
+		if (result) {
+			printk(KERN_WARNING "wdrtas: couldn't register "
+			       "watchdog temperature misc device. Continuing "
+			       "without temperature support.\n");
+			wdrtas_token_get_sensor_state = RTAS_UNKNOWN_SERVICE;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * wdrtas_init - init function of the watchdog driver
+ *
+ * returns 0 on succes, <0 on failure
+ *
+ * registers the file handlers and the reboot notifier
+ */
+static int __init wdrtas_init(void)
+{
+	if (wdrtas_get_tokens())
+		return -ENODEV;
+
+	if (wdrtas_register_devs())
+		return -ENODEV;
+
+	if (register_reboot_notifier(&wdrtas_notifier)) {
+		printk(KERN_ERR "wdrtas: could not register reboot notifier. "
+		       "Terminating watchdog code.\n");
+		wdrtas_unregister_devs();
+		return -ENODEV;
+	}
+
+	if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE)
+		wdrtas_interval = WDRTAS_DEFAULT_INTERVAL;
+	else
+		wdrtas_interval = wdrtas_get_interval(WDRTAS_DEFAULT_INTERVAL);
+
+	return 0;
+}
+
+/**
+ * wdrtas_exit - exit function of the watchdog driver
+ *
+ * unregisters the file handlers and the reboot notifier
+ */
+static void __exit wdrtas_exit(void)
+{
+	if (!wdrtas_nowayout)
+		wdrtas_timer_stop();
+
+	wdrtas_unregister_devs();
+
+	unregister_reboot_notifier(&wdrtas_notifier);
+}
+
+module_init(wdrtas_init);
+module_exit(wdrtas_exit);
diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c
new file mode 100644
index 0000000..eddb918
--- /dev/null
+++ b/drivers/watchdog/wdt.c
@@ -0,0 +1,677 @@
+/*
+ *	Industrial Computer Source WDT500/501 driver
+ *
+ *	(c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *	Release 0.10.
+ *
+ *	Fixes
+ *		Dave Gregorich	:	Modularisation and minor bugs
+ *		Alan Cox	:	Added the watchdog ioctl() stuff
+ *		Alan Cox	:	Fixed the reboot problem (as noted by
+ *					Matt Crocker).
+ *		Alan Cox	:	Added wdt= boot option
+ *		Alan Cox	:	Cleaned up copy/user stuff
+ *		Tim Hockin	:	Added insmod parameters, comment
+ *					cleanup, parameterized timeout
+ *		Tigran Aivazian	:	Restructured wdt_init() to handle
+ *					failures
+ *		Joel Becker	:	Added WDIOC_GET/SETTIMEOUT
+ *		Matt Domsch	:	Added nowayout module option
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+#include "wd501p.h"
+
+static unsigned long wdt_is_open;
+static char expect_close;
+
+/*
+ *	Module parameters
+ */
+
+#define WD_TIMO 60			/* Default heartbeat = 60 seconds */
+
+static int heartbeat = WD_TIMO;
+static int wd_heartbeat;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+	"Watchdog heartbeat in seconds. (0 < heartbeat < 65536, default="
+				__MODULE_STRING(WD_TIMO) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/* You must set these - there is no sane way to probe for this board. */
+static int io = 0x240;
+static int irq = 11;
+
+static DEFINE_SPINLOCK(wdt_lock);
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "WDT io port (default=0x240)");
+module_param(irq, int, 0);
+MODULE_PARM_DESC(irq, "WDT irq (default=11)");
+
+#ifdef CONFIG_WDT_501
+/* Support for the Fan Tachometer on the WDT501-P */
+static int tachometer;
+
+module_param(tachometer, int, 0);
+MODULE_PARM_DESC(tachometer,
+		"WDT501-P Fan Tachometer support (0=disable, default=0)");
+#endif /* CONFIG_WDT_501 */
+
+/*
+ *	Programming support
+ */
+
+static void wdt_ctr_mode(int ctr, int mode)
+{
+	ctr <<= 6;
+	ctr |= 0x30;
+	ctr |= (mode << 1);
+	outb_p(ctr, WDT_CR);
+}
+
+static void wdt_ctr_load(int ctr, int val)
+{
+	outb_p(val&0xFF, WDT_COUNT0+ctr);
+	outb_p(val>>8, WDT_COUNT0+ctr);
+}
+
+/**
+ *	wdt_start:
+ *
+ *	Start the watchdog driver.
+ */
+
+static int wdt_start(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&wdt_lock, flags);
+	inb_p(WDT_DC);			/* Disable watchdog */
+	wdt_ctr_mode(0, 3);		/* Program CTR0 for Mode 3:
+						Square Wave Generator */
+	wdt_ctr_mode(1, 2);		/* Program CTR1 for Mode 2:
+						Rate Generator */
+	wdt_ctr_mode(2, 0);		/* Program CTR2 for Mode 0:
+						Pulse on Terminal Count */
+	wdt_ctr_load(0, 8948);		/* Count at 100Hz */
+	wdt_ctr_load(1, wd_heartbeat);	/* Heartbeat */
+	wdt_ctr_load(2, 65535);		/* Length of reset pulse */
+	outb_p(0, WDT_DC);		/* Enable watchdog */
+	spin_unlock_irqrestore(&wdt_lock, flags);
+	return 0;
+}
+
+/**
+ *	wdt_stop:
+ *
+ *	Stop the watchdog driver.
+ */
+
+static int wdt_stop(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&wdt_lock, flags);
+	/* Turn the card off */
+	inb_p(WDT_DC);			/* Disable watchdog */
+	wdt_ctr_load(2, 0);		/* 0 length reset pulses now */
+	spin_unlock_irqrestore(&wdt_lock, flags);
+	return 0;
+}
+
+/**
+ *	wdt_ping:
+ *
+ *	Reload counter one with the watchdog heartbeat. We don't bother
+ *	reloading the cascade counter.
+ */
+
+static int wdt_ping(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&wdt_lock, flags);
+	/* Write a watchdog value */
+	inb_p(WDT_DC);			/* Disable watchdog */
+	wdt_ctr_mode(1, 2);		/* Re-Program CTR1 for Mode 2:
+							Rate Generator */
+	wdt_ctr_load(1, wd_heartbeat);	/* Heartbeat */
+	outb_p(0, WDT_DC);		/* Enable watchdog */
+	spin_unlock_irqrestore(&wdt_lock, flags);
+	return 0;
+}
+
+/**
+ *	wdt_set_heartbeat:
+ *	@t:		the new heartbeat value that needs to be set.
+ *
+ *	Set a new heartbeat value for the watchdog device. If the heartbeat
+ *	value is incorrect we keep the old value and return -EINVAL. If
+ *	successful we return 0.
+ */
+
+static int wdt_set_heartbeat(int t)
+{
+	if (t < 1 || t > 65535)
+		return -EINVAL;
+
+	heartbeat = t;
+	wd_heartbeat = t * 100;
+	return 0;
+}
+
+/**
+ *	wdt_get_status:
+ *	@status:		the new status.
+ *
+ *	Extract the status information from a WDT watchdog device. There are
+ *	several board variants so we have to know which bits are valid. Some
+ *	bits default to one and some to zero in order to be maximally painful.
+ *
+ *	we then map the bits onto the status ioctl flags.
+ */
+
+static int wdt_get_status(int *status)
+{
+	unsigned char new_status;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdt_lock, flags);
+	new_status = inb_p(WDT_SR);
+	spin_unlock_irqrestore(&wdt_lock, flags);
+
+	*status = 0;
+	if (new_status & WDC_SR_ISOI0)
+		*status |= WDIOF_EXTERN1;
+	if (new_status & WDC_SR_ISII1)
+		*status |= WDIOF_EXTERN2;
+#ifdef CONFIG_WDT_501
+	if (!(new_status & WDC_SR_TGOOD))
+		*status |= WDIOF_OVERHEAT;
+	if (!(new_status & WDC_SR_PSUOVER))
+		*status |= WDIOF_POWEROVER;
+	if (!(new_status & WDC_SR_PSUUNDR))
+		*status |= WDIOF_POWERUNDER;
+	if (tachometer) {
+		if (!(new_status & WDC_SR_FANGOOD))
+			*status |= WDIOF_FANFAULT;
+	}
+#endif /* CONFIG_WDT_501 */
+	return 0;
+}
+
+#ifdef CONFIG_WDT_501
+/**
+ *	wdt_get_temperature:
+ *
+ *	Reports the temperature in degrees Fahrenheit. The API is in
+ *	farenheit. It was designed by an imperial measurement luddite.
+ */
+
+static int wdt_get_temperature(int *temperature)
+{
+	unsigned short c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdt_lock, flags);
+	c = inb_p(WDT_RT);
+	spin_unlock_irqrestore(&wdt_lock, flags);
+	*temperature = (c * 11 / 15) + 7;
+	return 0;
+}
+#endif /* CONFIG_WDT_501 */
+
+/**
+ *	wdt_interrupt:
+ *	@irq:		Interrupt number
+ *	@dev_id:	Unused as we don't allow multiple devices.
+ *
+ *	Handle an interrupt from the board. These are raised when the status
+ *	map changes in what the board considers an interesting way. That means
+ *	a failure condition occurring.
+ */
+
+static irqreturn_t wdt_interrupt(int irq, void *dev_id)
+{
+	/*
+	 *	Read the status register see what is up and
+	 *	then printk it.
+	 */
+	unsigned char status;
+
+	spin_lock(&wdt_lock);
+	status = inb_p(WDT_SR);
+
+	printk(KERN_CRIT "WDT status %d\n", status);
+
+#ifdef CONFIG_WDT_501
+	if (!(status & WDC_SR_TGOOD))
+		printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT));
+	if (!(status & WDC_SR_PSUOVER))
+		printk(KERN_CRIT "PSU over voltage.\n");
+	if (!(status & WDC_SR_PSUUNDR))
+		printk(KERN_CRIT "PSU under voltage.\n");
+	if (tachometer) {
+		if (!(status & WDC_SR_FANGOOD))
+			printk(KERN_CRIT "Possible fan fault.\n");
+	}
+#endif /* CONFIG_WDT_501 */
+	if (!(status & WDC_SR_WCCR)) {
+#ifdef SOFTWARE_REBOOT
+#ifdef ONLY_TESTING
+		printk(KERN_CRIT "Would Reboot.\n");
+#else
+		printk(KERN_CRIT "Initiating system reboot.\n");
+		emergency_restart();
+#endif
+#else
+		printk(KERN_CRIT "Reset in 5ms.\n");
+#endif
+	}
+	spin_unlock(&wdt_lock);
+	return IRQ_HANDLED;
+}
+
+
+/**
+ *	wdt_write:
+ *	@file: file handle to the watchdog
+ *	@buf: buffer to write (unused as data does not matter here
+ *	@count: count of bytes
+ *	@ppos: pointer to the position to write. No seeks allowed
+ *
+ *	A write to a watchdog device is defined as a keepalive signal. Any
+ *	write of data will do, as we we don't define content meaning.
+ */
+
+static ssize_t wdt_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		wdt_ping();
+	}
+	return count;
+}
+
+/**
+ *	wdt_ioctl:
+ *	@file: file handle to the device
+ *	@cmd: watchdog command
+ *	@arg: argument pointer
+ *
+ *	The watchdog API defines a common set of functions for all watchdogs
+ *	according to their available features. We only actually usefully support
+ *	querying capabilities and current status.
+ */
+
+static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int new_heartbeat;
+	int status;
+
+	static struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT|
+					WDIOF_MAGICCLOSE|
+					WDIOF_KEEPALIVEPING,
+		.firmware_version =	1,
+		.identity =		"WDT500/501",
+	};
+
+	/* Add options according to the card we have */
+	ident.options |= (WDIOF_EXTERN1|WDIOF_EXTERN2);
+#ifdef CONFIG_WDT_501
+	ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER);
+	if (tachometer)
+		ident.options |= WDIOF_FANFAULT;
+#endif /* CONFIG_WDT_501 */
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+		wdt_get_status(&status);
+		return put_user(status, p);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		wdt_ping();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_heartbeat, p))
+			return -EFAULT;
+		if (wdt_set_heartbeat(new_heartbeat))
+			return -EINVAL;
+		wdt_ping();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/**
+ *	wdt_open:
+ *	@inode: inode of device
+ *	@file: file handle to device
+ *
+ *	The watchdog device has been opened. The watchdog device is single
+ *	open and on opening we load the counters. Counter zero is a 100Hz
+ *	cascade, into counter 1 which downcounts to reboot. When the counter
+ *	triggers counter 2 downcounts the length of the reset pulse which
+ *	set set to be as long as possible.
+ */
+
+static int wdt_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &wdt_is_open))
+		return -EBUSY;
+	/*
+	 *	Activate
+	 */
+	wdt_start();
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	wdt_release:
+ *	@inode: inode to board
+ *	@file: file handle to board
+ *
+ *	The watchdog has a configurable API. There is a religious dispute
+ *	between people who want their watchdog to be able to shut down and
+ *	those who want to be sure if the watchdog manager dies the machine
+ *	reboots. In the former case we disable the counters, in the latter
+ *	case you have to open it again very soon.
+ */
+
+static int wdt_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		wdt_stop();
+		clear_bit(0, &wdt_is_open);
+	} else {
+		printk(KERN_CRIT
+		 "wdt: WDT device closed unexpectedly.  WDT will not stop!\n");
+		wdt_ping();
+	}
+	expect_close = 0;
+	return 0;
+}
+
+#ifdef CONFIG_WDT_501
+/**
+ *	wdt_temp_read:
+ *	@file: file handle to the watchdog board
+ *	@buf: buffer to write 1 byte into
+ *	@count: length of buffer
+ *	@ptr: offset (no seek allowed)
+ *
+ *	Temp_read reports the temperature in degrees Fahrenheit. The API is in
+ *	farenheit. It was designed by an imperial measurement luddite.
+ */
+
+static ssize_t wdt_temp_read(struct file *file, char __user *buf,
+						size_t count, loff_t *ptr)
+{
+	int temperature;
+
+	if (wdt_get_temperature(&temperature))
+		return -EFAULT;
+
+	if (copy_to_user(buf, &temperature, 1))
+		return -EFAULT;
+
+	return 1;
+}
+
+/**
+ *	wdt_temp_open:
+ *	@inode: inode of device
+ *	@file: file handle to device
+ *
+ *	The temperature device has been opened.
+ */
+
+static int wdt_temp_open(struct inode *inode, struct file *file)
+{
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	wdt_temp_release:
+ *	@inode: inode to board
+ *	@file: file handle to board
+ *
+ *	The temperature device has been closed.
+ */
+
+static int wdt_temp_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+#endif /* CONFIG_WDT_501 */
+
+/**
+ *	notify_sys:
+ *	@this: our notifier block
+ *	@code: the event being reported
+ *	@unused: unused
+ *
+ *	Our notifier is called on system shutdowns. We want to turn the card
+ *	off at reboot otherwise the machine will reboot again during memory
+ *	test or worse yet during the following fsck. This would suck, in fact
+ *	trust me - if it happens it does suck.
+ */
+
+static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt_stop();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+
+static const struct file_operations wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt_write,
+	.unlocked_ioctl	= wdt_ioctl,
+	.open		= wdt_open,
+	.release	= wdt_release,
+};
+
+static struct miscdevice wdt_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &wdt_fops,
+};
+
+#ifdef CONFIG_WDT_501
+static const struct file_operations wdt_temp_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= wdt_temp_read,
+	.open		= wdt_temp_open,
+	.release	= wdt_temp_release,
+};
+
+static struct miscdevice temp_miscdev = {
+	.minor	= TEMP_MINOR,
+	.name	= "temperature",
+	.fops	= &wdt_temp_fops,
+};
+#endif /* CONFIG_WDT_501 */
+
+/*
+ *	The WDT card needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdt_notifier = {
+	.notifier_call = wdt_notify_sys,
+};
+
+/**
+ *	cleanup_module:
+ *
+ *	Unload the watchdog. You cannot do this with any file handles open.
+ *	If your watchdog is set to continue ticking on close and you unload
+ *	it, well it keeps ticking. We won't get the interrupt but the board
+ *	will not touch PC memory so all is fine. You just have to load a new
+ *	module in 60 seconds or reboot.
+ */
+
+static void __exit wdt_exit(void)
+{
+	misc_deregister(&wdt_miscdev);
+#ifdef CONFIG_WDT_501
+	misc_deregister(&temp_miscdev);
+#endif /* CONFIG_WDT_501 */
+	unregister_reboot_notifier(&wdt_notifier);
+	free_irq(irq, NULL);
+	release_region(io, 8);
+}
+
+/**
+ * 	wdt_init:
+ *
+ *	Set up the WDT watchdog board. All we have to do is grab the
+ *	resources we require and bitch if anyone beat us to them.
+ *	The open() function will actually kick the board off.
+ */
+
+static int __init wdt_init(void)
+{
+	int ret;
+
+	/* Check that the heartbeat value is within it's range;
+	   if not reset to the default */
+	if (wdt_set_heartbeat(heartbeat)) {
+		wdt_set_heartbeat(WD_TIMO);
+		printk(KERN_INFO "wdt: heartbeat value must be 0 < heartbeat < 65536, using %d\n",
+			WD_TIMO);
+	}
+
+	if (!request_region(io, 8, "wdt501p")) {
+		printk(KERN_ERR
+			"wdt: I/O address 0x%04x already in use\n", io);
+		ret = -EBUSY;
+		goto out;
+	}
+
+	ret = request_irq(irq, wdt_interrupt, IRQF_DISABLED, "wdt501p", NULL);
+	if (ret) {
+		printk(KERN_ERR "wdt: IRQ %d is not free.\n", irq);
+		goto outreg;
+	}
+
+	ret = register_reboot_notifier(&wdt_notifier);
+	if (ret) {
+		printk(KERN_ERR
+		      "wdt: cannot register reboot notifier (err=%d)\n", ret);
+		goto outirq;
+	}
+
+#ifdef CONFIG_WDT_501
+	ret = misc_register(&temp_miscdev);
+	if (ret) {
+		printk(KERN_ERR
+			"wdt: cannot register miscdev on minor=%d (err=%d)\n",
+							TEMP_MINOR, ret);
+		goto outrbt;
+	}
+#endif /* CONFIG_WDT_501 */
+
+	ret = misc_register(&wdt_miscdev);
+	if (ret) {
+		printk(KERN_ERR
+			"wdt: cannot register miscdev on minor=%d (err=%d)\n",
+							WATCHDOG_MINOR, ret);
+		goto outmisc;
+	}
+
+	ret = 0;
+	printk(KERN_INFO "WDT500/501-P driver 0.10 at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n",
+		io, irq, heartbeat, nowayout);
+#ifdef CONFIG_WDT_501
+	printk(KERN_INFO "wdt: Fan Tachometer is %s\n",
+				(tachometer ? "Enabled" : "Disabled"));
+#endif /* CONFIG_WDT_501 */
+
+out:
+	return ret;
+
+outmisc:
+#ifdef CONFIG_WDT_501
+	misc_deregister(&temp_miscdev);
+outrbt:
+#endif /* CONFIG_WDT_501 */
+	unregister_reboot_notifier(&wdt_notifier);
+outirq:
+	free_irq(irq, NULL);
+outreg:
+	release_region(io, 8);
+	goto out;
+}
+
+module_init(wdt_init);
+module_exit(wdt_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("Driver for ISA ICS watchdog cards (WDT500/501)");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
+MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c
new file mode 100644
index 0000000..f551356
--- /dev/null
+++ b/drivers/watchdog/wdt285.c
@@ -0,0 +1,232 @@
+/*
+ *	Intel 21285 watchdog driver
+ *	Copyright (c) Phil Blundell <pb@nexus.co.uk>, 1998
+ *
+ *	based on
+ *
+ *	SoftDog	0.05:	A Software Watchdog Device
+ *
+ *	(c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/uaccess.h>
+#include <linux/irq.h>
+#include <mach/hardware.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware/dec21285.h>
+
+/*
+ * Define this to stop the watchdog actually rebooting the machine.
+ */
+#undef ONLY_TESTING
+
+static unsigned int soft_margin = 60;		/* in seconds */
+static unsigned int reload;
+static unsigned long timer_alive;
+
+#ifdef ONLY_TESTING
+/*
+ *	If the timer expires..
+ */
+static void watchdog_fire(int irq, void *dev_id)
+{
+	printk(KERN_CRIT "Watchdog: Would Reboot.\n");
+	*CSR_TIMER4_CNTL = 0;
+	*CSR_TIMER4_CLR = 0;
+}
+#endif
+
+/*
+ *	Refresh the timer.
+ */
+static void watchdog_ping(void)
+{
+	*CSR_TIMER4_LOAD = reload;
+}
+
+/*
+ *	Allow only one person to hold it open
+ */
+static int watchdog_open(struct inode *inode, struct file *file)
+{
+	int ret;
+
+	if (*CSR_SA110_CNTL & (1 << 13))
+		return -EBUSY;
+
+	if (test_and_set_bit(1, &timer_alive))
+		return -EBUSY;
+
+	reload = soft_margin * (mem_fclk_21285 / 256);
+
+	*CSR_TIMER4_CLR = 0;
+	watchdog_ping();
+	*CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD
+		| TIMER_CNTL_DIV256;
+
+#ifdef ONLY_TESTING
+	ret = request_irq(IRQ_TIMER4, watchdog_fire, 0, "watchdog", NULL);
+	if (ret) {
+		*CSR_TIMER4_CNTL = 0;
+		clear_bit(1, &timer_alive);
+	}
+#else
+	/*
+	 * Setting this bit is irreversible; once enabled, there is
+	 * no way to disable the watchdog.
+	 */
+	*CSR_SA110_CNTL |= 1 << 13;
+
+	ret = 0;
+#endif
+	nonseekable_open(inode, file);
+	return ret;
+}
+
+/*
+ *	Shut off the timer.
+ *	Note: if we really have enabled the watchdog, there
+ *	is no way to turn off.
+ */
+static int watchdog_release(struct inode *inode, struct file *file)
+{
+#ifdef ONLY_TESTING
+	free_irq(IRQ_TIMER4, NULL);
+	clear_bit(1, &timer_alive);
+#endif
+	return 0;
+}
+
+static ssize_t watchdog_write(struct file *file, const char __user *data,
+			      size_t len, loff_t *ppos)
+{
+	/*
+	 *	Refresh the timer.
+	 */
+	if (len)
+		watchdog_ping();
+
+	return len;
+}
+
+static const struct watchdog_info ident = {
+	.options	= WDIOF_SETTIMEOUT,
+	.identity	= "Footbridge Watchdog",
+};
+
+static long watchdog_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg)
+{
+	unsigned int new_margin;
+	int __user *int_arg = (int __user *)arg;
+	int ret = -ENOTTY;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		ret = 0;
+		if (copy_to_user((void __user *)arg, &ident, sizeof(ident)))
+			ret = -EFAULT;
+		break;
+
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		ret = put_user(0, int_arg);
+		break;
+
+	case WDIOC_KEEPALIVE:
+		watchdog_ping();
+		ret = 0;
+		break;
+
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(new_margin, int_arg);
+		if (ret)
+			break;
+
+		/* Arbitrary, can't find the card's limits */
+		if (new_margin < 0 || new_margin > 60) {
+			ret = -EINVAL;
+			break;
+		}
+
+		soft_margin = new_margin;
+		reload = soft_margin * (mem_fclk_21285 / 256);
+		watchdog_ping();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		ret = put_user(soft_margin, int_arg);
+		break;
+	}
+	return ret;
+}
+
+static const struct file_operations watchdog_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= watchdog_write,
+	.unlocked_ioctl	= watchdog_ioctl,
+	.open		= watchdog_open,
+	.release	= watchdog_release,
+};
+
+static struct miscdevice watchdog_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &watchdog_fops,
+};
+
+static int __init footbridge_watchdog_init(void)
+{
+	int retval;
+
+	if (machine_is_netwinder())
+		return -ENODEV;
+
+	retval = misc_register(&watchdog_miscdev);
+	if (retval < 0)
+		return retval;
+
+	printk(KERN_INFO
+		"Footbridge Watchdog Timer: 0.01, timer margin: %d sec\n",
+								soft_margin);
+
+	if (machine_is_cats())
+		printk(KERN_WARNING
+		  "Warning: Watchdog reset may not work on this machine.\n");
+	return 0;
+}
+
+static void __exit footbridge_watchdog_exit(void)
+{
+	misc_deregister(&watchdog_miscdev);
+}
+
+MODULE_AUTHOR("Phil Blundell <pb@nexus.co.uk>");
+MODULE_DESCRIPTION("Footbridge watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(soft_margin, int, 0);
+MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
+
+module_init(footbridge_watchdog_init);
+module_exit(footbridge_watchdog_exit);
diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c
new file mode 100644
index 0000000..60e28d4
--- /dev/null
+++ b/drivers/watchdog/wdt977.c
@@ -0,0 +1,517 @@
+/*
+ *	Wdt977	0.04:	A Watchdog Device for Netwinder W83977AF chip
+ *
+ *	(c) Copyright 1998 Rebel.com (Woody Suwalski <woody@netwinder.org>)
+ *
+ *			-----------------------
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *			-----------------------
+ *      14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
+ *           Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
+ *	19-Dec-2001 Woody Suwalski: Netwinder fixes, ioctl interface
+ *	06-Jan-2002 Woody Suwalski: For compatibility, convert all timeouts
+ *				    from minutes to seconds.
+ *      07-Jul-2003 Daniele Bellucci: Audit return code of misc_register in
+ *                                    nwwatchdog_init.
+ *      25-Oct-2005 Woody Suwalski: Convert addresses to #defs, add spinlocks
+ *				    remove limitiation to be used on
+ *				    Netwinders only
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/watchdog.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+#include <asm/mach-types.h>
+
+#define WATCHDOG_VERSION  "0.04"
+#define WATCHDOG_NAME     "Wdt977"
+#define PFX WATCHDOG_NAME ": "
+#define DRIVER_VERSION    WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n"
+
+#define IO_INDEX_PORT	0x370		/* on some systems it can be 0x3F0 */
+#define IO_DATA_PORT	(IO_INDEX_PORT + 1)
+
+#define UNLOCK_DATA	0x87
+#define LOCK_DATA	0xAA
+#define DEVICE_REGISTER	0x07
+
+
+#define	DEFAULT_TIMEOUT	60			/* default timeout in seconds */
+
+static	int timeout = DEFAULT_TIMEOUT;
+static	int timeoutM;				/* timeout in minutes */
+static	unsigned long timer_alive;
+static	int testmode;
+static	char expect_close;
+static	DEFINE_SPINLOCK(spinlock);
+
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds (60..15300), default="
+				__MODULE_STRING(DEFAULT_TIMEOUT) ")");
+module_param(testmode, int, 0);
+MODULE_PARM_DESC(testmode, "Watchdog testmode (1 = no reboot), default=0");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+/*
+ * Start the watchdog
+ */
+
+static int wdt977_start(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/* select device Aux2 (device=8) and set watchdog regs F2, F3 and F4
+	 * F2 has the timeout in minutes
+	 * F3 could be set to the POWER LED blink (with GP17 set to PowerLed)
+	 *   at timeout, and to reset timer on kbd/mouse activity (not impl.)
+	 * F4 is used to just clear the TIMEOUT'ed state (bit 0)
+	 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(timeoutM, IO_DATA_PORT);
+	outb_p(0xF3, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);	/* another setting is 0E for
+					   kbd/mouse/LED */
+	outb_p(0xF4, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+
+	/* At last select device Aux1 (dev=7) and set GP16 as a
+	 * watchdog output. In test mode watch the bit 1 on F4 to
+	 * indicate "triggered"
+	 */
+	if (!testmode) {
+		outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+		outb_p(0x07, IO_DATA_PORT);
+		outb_p(0xE6, IO_INDEX_PORT);
+		outb_p(0x08, IO_DATA_PORT);
+	}
+
+	/* lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+	printk(KERN_INFO PFX "activated.\n");
+
+	return 0;
+}
+
+/*
+ * Stop the watchdog
+ */
+
+static int wdt977_stop(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/* select device Aux2 (device=8) and set watchdog regs F2,F3 and F4
+	* F3 is reset to its default state
+	* F4 can clear the TIMEOUT'ed state (bit 0) - back to default
+	* We can not use GP17 as a PowerLed, as we use its usage as a RedLed
+	*/
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(0xFF, IO_DATA_PORT);
+	outb_p(0xF3, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+	outb_p(0xF4, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(0x00, IO_DATA_PORT);
+
+	/* at last select device Aux1 (dev=7) and set
+	   GP16 as a watchdog output */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x07, IO_DATA_PORT);
+	outb_p(0xE6, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+
+	/* lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+	printk(KERN_INFO PFX "shutdown.\n");
+
+	return 0;
+}
+
+/*
+ * Send a keepalive ping to the watchdog
+ * This is done by simply re-writing the timeout to reg. 0xF2
+ */
+
+static int wdt977_keepalive(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/* select device Aux2 (device=8) and kicks watchdog reg F2 */
+	/* F2 has the timeout in minutes */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF2, IO_INDEX_PORT);
+	outb_p(timeoutM, IO_DATA_PORT);
+
+	/* lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	return 0;
+}
+
+/*
+ * Set the watchdog timeout value
+ */
+
+static int wdt977_set_timeout(int t)
+{
+	int tmrval;
+
+	/* convert seconds to minutes, rounding up */
+	tmrval = (t + 59) / 60;
+
+	if (machine_is_netwinder()) {
+		/* we have a hw bug somewhere, so each 977 minute is actually
+		 * only 30sec. This limits the max timeout to half of device
+		 * max of 255 minutes...
+		 */
+		tmrval += tmrval;
+	}
+
+	if (tmrval < 1 || tmrval > 255)
+		return -EINVAL;
+
+	/* timeout is the timeout in seconds, timeoutM is
+	   the timeout in minutes) */
+	timeout = t;
+	timeoutM = tmrval;
+	return 0;
+}
+
+/*
+ * Get the watchdog status
+ */
+
+static int wdt977_get_status(int *status)
+{
+	int new_status;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spinlock, flags);
+
+	/* unlock the SuperIO chip */
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+	outb_p(UNLOCK_DATA, IO_INDEX_PORT);
+
+	/* select device Aux2 (device=8) and read watchdog reg F4 */
+	outb_p(DEVICE_REGISTER, IO_INDEX_PORT);
+	outb_p(0x08, IO_DATA_PORT);
+	outb_p(0xF4, IO_INDEX_PORT);
+	new_status = inb_p(IO_DATA_PORT);
+
+	/* lock the SuperIO chip */
+	outb_p(LOCK_DATA, IO_INDEX_PORT);
+
+	spin_unlock_irqrestore(&spinlock, flags);
+
+	*status = 0;
+	if (new_status & 1)
+		*status |= WDIOF_CARDRESET;
+
+	return 0;
+}
+
+
+/*
+ *	/dev/watchdog handling
+ */
+
+static int wdt977_open(struct inode *inode, struct file *file)
+{
+	/* If the watchdog is alive we don't need to start it again */
+	if (test_and_set_bit(0, &timer_alive))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+
+	wdt977_start();
+	return nonseekable_open(inode, file);
+}
+
+static int wdt977_release(struct inode *inode, struct file *file)
+{
+	/*
+	 *	Shut off the timer.
+	 * 	Lock it in if it's a module and we set nowayout
+	 */
+	if (expect_close == 42) {
+		wdt977_stop();
+		clear_bit(0, &timer_alive);
+	} else {
+		wdt977_keepalive();
+		printk(KERN_CRIT PFX
+			"Unexpected close, not stopping watchdog!\n");
+	}
+	expect_close = 0;
+	return 0;
+}
+
+
+/*
+ *      wdt977_write:
+ *      @file: file handle to the watchdog
+ *      @buf: buffer to write (unused as data does not matter here
+ *      @count: count of bytes
+ *      @ppos: pointer to the position to write. No seeks allowed
+ *
+ *      A write to a watchdog device is defined as a keepalive signal. Any
+ *      write of data will do, as we we don't define content meaning.
+ */
+
+static ssize_t wdt977_write(struct file *file, const char __user *buf,
+			    size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			/* In case it was set long ago */
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+
+		/* someone wrote to us, we should restart timer */
+		wdt977_keepalive();
+	}
+	return count;
+}
+
+static const struct watchdog_info ident = {
+	.options =		WDIOF_SETTIMEOUT |
+				WDIOF_MAGICCLOSE |
+				WDIOF_KEEPALIVEPING,
+	.firmware_version =	1,
+	.identity =		WATCHDOG_NAME,
+};
+
+/*
+ *      wdt977_ioctl:
+ *      @inode: inode of the device
+ *      @file: file handle to the device
+ *      @cmd: watchdog command
+ *      @arg: argument pointer
+ *
+ *      The watchdog API defines a common set of functions for all watchdogs
+ *      according to their available features.
+ */
+
+static long wdt977_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int status;
+	int new_options, retval = -EINVAL;
+	int new_timeout;
+	union {
+		struct watchdog_info __user *ident;
+		int __user *i;
+	} uarg;
+
+	uarg.i = (int __user *)arg;
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(uarg.ident, &ident,
+			sizeof(ident)) ? -EFAULT : 0;
+
+	case WDIOC_GETSTATUS:
+		wdt977_get_status(&status);
+		return put_user(status, uarg.i);
+
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, uarg.i);
+
+	case WDIOC_SETOPTIONS:
+		if (get_user(new_options, uarg.i))
+			return -EFAULT;
+
+		if (new_options & WDIOS_DISABLECARD) {
+			wdt977_stop();
+			retval = 0;
+		}
+
+		if (new_options & WDIOS_ENABLECARD) {
+			wdt977_start();
+			retval = 0;
+		}
+
+		return retval;
+
+	case WDIOC_KEEPALIVE:
+		wdt977_keepalive();
+		return 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_timeout, uarg.i))
+			return -EFAULT;
+
+		if (wdt977_set_timeout(new_timeout))
+		    return -EINVAL;
+
+		wdt977_keepalive();
+		/* Fall */
+
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, uarg.i);
+
+	default:
+		return -ENOTTY;
+
+	}
+}
+
+static int wdt977_notify_sys(struct notifier_block *this, unsigned long code,
+	void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdt977_stop();
+	return NOTIFY_DONE;
+}
+
+static const struct file_operations wdt977_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdt977_write,
+	.unlocked_ioctl	= wdt977_ioctl,
+	.open		= wdt977_open,
+	.release	= wdt977_release,
+};
+
+static struct miscdevice wdt977_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &wdt977_fops,
+};
+
+static struct notifier_block wdt977_notifier = {
+	.notifier_call = wdt977_notify_sys,
+};
+
+static int __init wd977_init(void)
+{
+	int rc;
+
+	printk(KERN_INFO PFX DRIVER_VERSION);
+
+	/* Check that the timeout value is within its range;
+	   if not reset to the default */
+	if (wdt977_set_timeout(timeout)) {
+		wdt977_set_timeout(DEFAULT_TIMEOUT);
+		printk(KERN_INFO PFX
+		      "timeout value must be 60 < timeout < 15300, using %d\n",
+							DEFAULT_TIMEOUT);
+	}
+
+	/* on Netwinder the IOports are already reserved by
+	 * arch/arm/mach-footbridge/netwinder-hw.c
+	 */
+	if (!machine_is_netwinder()) {
+		if (!request_region(IO_INDEX_PORT, 2, WATCHDOG_NAME)) {
+			printk(KERN_ERR PFX
+				"I/O address 0x%04x already in use\n",
+								IO_INDEX_PORT);
+			rc = -EIO;
+			goto err_out;
+		}
+	}
+
+	rc = register_reboot_notifier(&wdt977_notifier);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", rc);
+		goto err_out_region;
+	}
+
+	rc = misc_register(&wdt977_miscdev);
+	if (rc) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						wdt977_miscdev.minor, rc);
+		goto err_out_reboot;
+	}
+
+	printk(KERN_INFO PFX
+		"initialized. timeout=%d sec (nowayout=%d, testmode=%i)\n",
+						timeout, nowayout, testmode);
+
+	return 0;
+
+err_out_reboot:
+	unregister_reboot_notifier(&wdt977_notifier);
+err_out_region:
+	if (!machine_is_netwinder())
+		release_region(IO_INDEX_PORT, 2);
+err_out:
+	return rc;
+}
+
+static void __exit wd977_exit(void)
+{
+	wdt977_stop();
+	misc_deregister(&wdt977_miscdev);
+	unregister_reboot_notifier(&wdt977_notifier);
+	release_region(IO_INDEX_PORT, 2);
+}
+
+module_init(wd977_init);
+module_exit(wd977_exit);
+
+MODULE_AUTHOR("Woody Suwalski <woodys@xandros.com>");
+MODULE_DESCRIPTION("W83977AF Watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c
new file mode 100644
index 0000000..c45839a
--- /dev/null
+++ b/drivers/watchdog/wdt_pci.c
@@ -0,0 +1,799 @@
+/*
+ *	Industrial Computer Source PCI-WDT500/501 driver
+ *
+ *	(c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ *						 All Rights Reserved.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
+ *	warranty for any of this software. This material is provided
+ *	"AS-IS" and at no charge.
+ *
+ *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
+ *
+ *	Release 0.10.
+ *
+ *	Fixes
+ *		Dave Gregorich	:	Modularisation and minor bugs
+ *		Alan Cox	:	Added the watchdog ioctl() stuff
+ *		Alan Cox	:	Fixed the reboot problem (as noted by
+ *					Matt Crocker).
+ *		Alan Cox	:	Added wdt= boot option
+ *		Alan Cox	:	Cleaned up copy/user stuff
+ *		Tim Hockin	:	Added insmod parameters, comment cleanup
+ *					Parameterized timeout
+ *		JP Nollmann	:	Added support for PCI wdt501p
+ *		Alan Cox	:	Split ISA and PCI cards into two drivers
+ *		Jeff Garzik	:	PCI cleanups
+ *		Tigran Aivazian	:	Restructured wdtpci_init_one() to handle
+ *					failures
+ *		Joel Becker 	:	Added WDIOC_GET/SETTIMEOUT
+ *		Zwane Mwaikambo	:	Magic char closing, locking changes,
+ *					cleanups
+ *		Matt Domsch	:	nowayout module option
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include <asm/system.h>
+
+#define WDT_IS_PCI
+#include "wd501p.h"
+
+#define PFX "wdt_pci: "
+
+/*
+ * Until Access I/O gets their application for a PCI vendor ID approved,
+ * I don't think that it's appropriate to move these constants into the
+ * regular pci_ids.h file. -- JPN 2000/01/18
+ */
+
+#ifndef PCI_VENDOR_ID_ACCESSIO
+#define PCI_VENDOR_ID_ACCESSIO 0x494f
+#endif
+#ifndef PCI_DEVICE_ID_WDG_CSM
+#define PCI_DEVICE_ID_WDG_CSM 0x22c0
+#endif
+
+/* We can only use 1 card due to the /dev/watchdog restriction */
+static int dev_count;
+
+static unsigned long open_lock;
+static DEFINE_SPINLOCK(wdtpci_lock);
+static char expect_close;
+
+static int io;
+static int irq;
+
+/* Default timeout */
+#define WD_TIMO 60			/* Default heartbeat = 60 seconds */
+
+static int heartbeat = WD_TIMO;
+static int wd_heartbeat;
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+		"Watchdog heartbeat in seconds. (0<heartbeat<65536, default="
+				__MODULE_STRING(WD_TIMO) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#ifdef CONFIG_WDT_501_PCI
+/* Support for the Fan Tachometer on the PCI-WDT501 */
+static int tachometer;
+
+module_param(tachometer, int, 0);
+MODULE_PARM_DESC(tachometer,
+	"PCI-WDT501 Fan Tachometer support (0=disable, default=0)");
+#endif /* CONFIG_WDT_501_PCI */
+
+/*
+ *	Programming support
+ */
+
+static void wdtpci_ctr_mode(int ctr, int mode)
+{
+	ctr <<= 6;
+	ctr |= 0x30;
+	ctr |= (mode << 1);
+	outb(ctr, WDT_CR);
+	udelay(8);
+}
+
+static void wdtpci_ctr_load(int ctr, int val)
+{
+	outb(val & 0xFF, WDT_COUNT0 + ctr);
+	udelay(8);
+	outb(val >> 8, WDT_COUNT0 + ctr);
+	udelay(8);
+}
+
+/**
+ *	wdtpci_start:
+ *
+ *	Start the watchdog driver.
+ */
+
+static int wdtpci_start(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdtpci_lock, flags);
+
+	/*
+	 * "pet" the watchdog, as Access says.
+	 * This resets the clock outputs.
+	 */
+	inb(WDT_DC);			/* Disable watchdog */
+	udelay(8);
+	wdtpci_ctr_mode(2, 0);		/* Program CTR2 for Mode 0:
+						Pulse on Terminal Count */
+	outb(0, WDT_DC);		/* Enable watchdog */
+	udelay(8);
+	inb(WDT_DC);			/* Disable watchdog */
+	udelay(8);
+	outb(0, WDT_CLOCK);		/* 2.0833MHz clock */
+	udelay(8);
+	inb(WDT_BUZZER);		/* disable */
+	udelay(8);
+	inb(WDT_OPTONOTRST);		/* disable */
+	udelay(8);
+	inb(WDT_OPTORST);		/* disable */
+	udelay(8);
+	inb(WDT_PROGOUT);		/* disable */
+	udelay(8);
+	wdtpci_ctr_mode(0, 3);		/* Program CTR0 for Mode 3:
+						Square Wave Generator */
+	wdtpci_ctr_mode(1, 2);		/* Program CTR1 for Mode 2:
+						Rate Generator */
+	wdtpci_ctr_mode(2, 1);		/* Program CTR2 for Mode 1:
+						Retriggerable One-Shot */
+	wdtpci_ctr_load(0, 20833);	/* count at 100Hz */
+	wdtpci_ctr_load(1, wd_heartbeat);/* Heartbeat */
+	/* DO NOT LOAD CTR2 on PCI card! -- JPN */
+	outb(0, WDT_DC);		/* Enable watchdog */
+	udelay(8);
+
+	spin_unlock_irqrestore(&wdtpci_lock, flags);
+	return 0;
+}
+
+/**
+ *	wdtpci_stop:
+ *
+ *	Stop the watchdog driver.
+ */
+
+static int wdtpci_stop(void)
+{
+	unsigned long flags;
+
+	/* Turn the card off */
+	spin_lock_irqsave(&wdtpci_lock, flags);
+	inb(WDT_DC);			/* Disable watchdog */
+	udelay(8);
+	wdtpci_ctr_load(2, 0);		/* 0 length reset pulses now */
+	spin_unlock_irqrestore(&wdtpci_lock, flags);
+	return 0;
+}
+
+/**
+ *	wdtpci_ping:
+ *
+ *	Reload counter one with the watchdog heartbeat. We don't bother
+ *	reloading the cascade counter.
+ */
+
+static int wdtpci_ping(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdtpci_lock, flags);
+	/* Write a watchdog value */
+	inb(WDT_DC);			/* Disable watchdog */
+	udelay(8);
+	wdtpci_ctr_mode(1, 2);		/* Re-Program CTR1 for Mode 2:
+							Rate Generator */
+	wdtpci_ctr_load(1, wd_heartbeat);/* Heartbeat */
+	outb(0, WDT_DC);		/* Enable watchdog */
+	udelay(8);
+	spin_unlock_irqrestore(&wdtpci_lock, flags);
+	return 0;
+}
+
+/**
+ *	wdtpci_set_heartbeat:
+ *	@t:		the new heartbeat value that needs to be set.
+ *
+ *	Set a new heartbeat value for the watchdog device. If the heartbeat
+ *	value is incorrect we keep the old value and return -EINVAL.
+ *	If successful we return 0.
+ */
+static int wdtpci_set_heartbeat(int t)
+{
+	/* Arbitrary, can't find the card's limits */
+	if (t < 1 || t > 65535)
+		return -EINVAL;
+
+	heartbeat = t;
+	wd_heartbeat = t * 100;
+	return 0;
+}
+
+/**
+ *	wdtpci_get_status:
+ *	@status:		the new status.
+ *
+ *	Extract the status information from a WDT watchdog device. There are
+ *	several board variants so we have to know which bits are valid. Some
+ *	bits default to one and some to zero in order to be maximally painful.
+ *
+ *	we then map the bits onto the status ioctl flags.
+ */
+
+static int wdtpci_get_status(int *status)
+{
+	unsigned char new_status;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdtpci_lock, flags);
+	new_status = inb(WDT_SR);
+	spin_unlock_irqrestore(&wdtpci_lock, flags);
+
+	*status = 0;
+	if (new_status & WDC_SR_ISOI0)
+		*status |= WDIOF_EXTERN1;
+	if (new_status & WDC_SR_ISII1)
+		*status |= WDIOF_EXTERN2;
+#ifdef CONFIG_WDT_501_PCI
+	if (!(new_status & WDC_SR_TGOOD))
+		*status |= WDIOF_OVERHEAT;
+	if (!(new_status & WDC_SR_PSUOVER))
+		*status |= WDIOF_POWEROVER;
+	if (!(new_status & WDC_SR_PSUUNDR))
+		*status |= WDIOF_POWERUNDER;
+	if (tachometer) {
+		if (!(new_status & WDC_SR_FANGOOD))
+			*status |= WDIOF_FANFAULT;
+	}
+#endif /* CONFIG_WDT_501_PCI */
+	return 0;
+}
+
+#ifdef CONFIG_WDT_501_PCI
+/**
+ *	wdtpci_get_temperature:
+ *
+ *	Reports the temperature in degrees Fahrenheit. The API is in
+ *	farenheit. It was designed by an imperial measurement luddite.
+ */
+
+static int wdtpci_get_temperature(int *temperature)
+{
+	unsigned short c;
+	unsigned long flags;
+	spin_lock_irqsave(&wdtpci_lock, flags);
+	c = inb(WDT_RT);
+	udelay(8);
+	spin_unlock_irqrestore(&wdtpci_lock, flags);
+	*temperature = (c * 11 / 15) + 7;
+	return 0;
+}
+#endif /* CONFIG_WDT_501_PCI */
+
+/**
+ *	wdtpci_interrupt:
+ *	@irq:		Interrupt number
+ *	@dev_id:	Unused as we don't allow multiple devices.
+ *
+ *	Handle an interrupt from the board. These are raised when the status
+ *	map changes in what the board considers an interesting way. That means
+ *	a failure condition occurring.
+ */
+
+static irqreturn_t wdtpci_interrupt(int irq, void *dev_id)
+{
+	/*
+	 *	Read the status register see what is up and
+	 *	then printk it.
+	 */
+	unsigned char status;
+
+	spin_lock(&wdtpci_lock);
+
+	status = inb(WDT_SR);
+	udelay(8);
+
+	printk(KERN_CRIT PFX "status %d\n", status);
+
+#ifdef CONFIG_WDT_501_PCI
+	if (!(status & WDC_SR_TGOOD)) {
+		u8 alarm = inb(WDT_RT);
+		printk(KERN_CRIT PFX "Overheat alarm.(%d)\n", alarm);
+		udelay(8);
+	}
+	if (!(status & WDC_SR_PSUOVER))
+		printk(KERN_CRIT PFX "PSU over voltage.\n");
+	if (!(status & WDC_SR_PSUUNDR))
+		printk(KERN_CRIT PFX "PSU under voltage.\n");
+	if (tachometer) {
+		if (!(status & WDC_SR_FANGOOD))
+			printk(KERN_CRIT PFX "Possible fan fault.\n");
+	}
+#endif /* CONFIG_WDT_501_PCI */
+	if (!(status&WDC_SR_WCCR)) {
+#ifdef SOFTWARE_REBOOT
+#ifdef ONLY_TESTING
+		printk(KERN_CRIT PFX "Would Reboot.\n");
+#else
+		printk(KERN_CRIT PFX "Initiating system reboot.\n");
+		emergency_restart(NULL);
+#endif
+#else
+		printk(KERN_CRIT PFX "Reset in 5ms.\n");
+#endif
+	}
+	spin_unlock(&wdtpci_lock);
+	return IRQ_HANDLED;
+}
+
+
+/**
+ *	wdtpci_write:
+ *	@file: file handle to the watchdog
+ *	@buf: buffer to write (unused as data does not matter here
+ *	@count: count of bytes
+ *	@ppos: pointer to the position to write. No seeks allowed
+ *
+ *	A write to a watchdog device is defined as a keepalive signal. Any
+ *	write of data will do, as we we don't define content meaning.
+ */
+
+static ssize_t wdtpci_write(struct file *file, const char __user *buf,
+					size_t count, loff_t *ppos)
+{
+	if (count) {
+		if (!nowayout) {
+			size_t i;
+
+			expect_close = 0;
+
+			for (i = 0; i != count; i++) {
+				char c;
+				if (get_user(c, buf + i))
+					return -EFAULT;
+				if (c == 'V')
+					expect_close = 42;
+			}
+		}
+		wdtpci_ping();
+	}
+	return count;
+}
+
+/**
+ *	wdtpci_ioctl:
+ *	@file: file handle to the device
+ *	@cmd: watchdog command
+ *	@arg: argument pointer
+ *
+ *	The watchdog API defines a common set of functions for all watchdogs
+ *	according to their available features. We only actually usefully support
+ *	querying capabilities and current status.
+ */
+
+static long wdtpci_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int new_heartbeat;
+	int status;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	static struct watchdog_info ident = {
+		.options =		WDIOF_SETTIMEOUT|
+					WDIOF_MAGICCLOSE|
+					WDIOF_KEEPALIVEPING,
+		.firmware_version =	1,
+		.identity =		"PCI-WDT500/501",
+	};
+
+	/* Add options according to the card we have */
+	ident.options |= (WDIOF_EXTERN1|WDIOF_EXTERN2);
+#ifdef CONFIG_WDT_501_PCI
+	ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER);
+	if (tachometer)
+		ident.options |= WDIOF_FANFAULT;
+#endif /* CONFIG_WDT_501_PCI */
+
+	switch (cmd) {
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+		wdtpci_get_status(&status);
+		return put_user(status, p);
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		wdtpci_ping();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_heartbeat, p))
+			return -EFAULT;
+		if (wdtpci_set_heartbeat(new_heartbeat))
+			return -EINVAL;
+		wdtpci_ping();
+		/* Fall */
+	case WDIOC_GETTIMEOUT:
+		return put_user(heartbeat, p);
+	default:
+		return -ENOTTY;
+	}
+}
+
+/**
+ *	wdtpci_open:
+ *	@inode: inode of device
+ *	@file: file handle to device
+ *
+ *	The watchdog device has been opened. The watchdog device is single
+ *	open and on opening we load the counters. Counter zero is a 100Hz
+ *	cascade, into counter 1 which downcounts to reboot. When the counter
+ *	triggers counter 2 downcounts the length of the reset pulse which
+ *	set set to be as long as possible.
+ */
+
+static int wdtpci_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &open_lock))
+		return -EBUSY;
+
+	if (nowayout)
+		__module_get(THIS_MODULE);
+	/*
+	 *	Activate
+	 */
+	wdtpci_start();
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	wdtpci_release:
+ *	@inode: inode to board
+ *	@file: file handle to board
+ *
+ *	The watchdog has a configurable API. There is a religious dispute
+ *	between people who want their watchdog to be able to shut down and
+ *	those who want to be sure if the watchdog manager dies the machine
+ *	reboots. In the former case we disable the counters, in the latter
+ *	case you have to open it again very soon.
+ */
+
+static int wdtpci_release(struct inode *inode, struct file *file)
+{
+	if (expect_close == 42) {
+		wdtpci_stop();
+	} else {
+		printk(KERN_CRIT PFX "Unexpected close, not stopping timer!");
+		wdtpci_ping();
+	}
+	expect_close = 0;
+	clear_bit(0, &open_lock);
+	return 0;
+}
+
+#ifdef CONFIG_WDT_501_PCI
+/**
+ *	wdtpci_temp_read:
+ *	@file: file handle to the watchdog board
+ *	@buf: buffer to write 1 byte into
+ *	@count: length of buffer
+ *	@ptr: offset (no seek allowed)
+ *
+ *	Read reports the temperature in degrees Fahrenheit. The API is in
+ *	fahrenheit. It was designed by an imperial measurement luddite.
+ */
+
+static ssize_t wdtpci_temp_read(struct file *file, char __user *buf,
+						size_t count, loff_t *ptr)
+{
+	int temperature;
+
+	if (wdtpci_get_temperature(&temperature))
+		return -EFAULT;
+
+	if (copy_to_user(buf, &temperature, 1))
+		return -EFAULT;
+
+	return 1;
+}
+
+/**
+ *	wdtpci_temp_open:
+ *	@inode: inode of device
+ *	@file: file handle to device
+ *
+ *	The temperature device has been opened.
+ */
+
+static int wdtpci_temp_open(struct inode *inode, struct file *file)
+{
+	return nonseekable_open(inode, file);
+}
+
+/**
+ *	wdtpci_temp_release:
+ *	@inode: inode to board
+ *	@file: file handle to board
+ *
+ *	The temperature device has been closed.
+ */
+
+static int wdtpci_temp_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+#endif /* CONFIG_WDT_501_PCI */
+
+/**
+ *	notify_sys:
+ *	@this: our notifier block
+ *	@code: the event being reported
+ *	@unused: unused
+ *
+ *	Our notifier is called on system shutdowns. We want to turn the card
+ *	off at reboot otherwise the machine will reboot again during memory
+ *	test or worse yet during the following fsck. This would suck, in fact
+ *	trust me - if it happens it does suck.
+ */
+
+static int wdtpci_notify_sys(struct notifier_block *this, unsigned long code,
+							void *unused)
+{
+	if (code == SYS_DOWN || code == SYS_HALT)
+		wdtpci_stop();
+	return NOTIFY_DONE;
+}
+
+/*
+ *	Kernel Interfaces
+ */
+
+
+static const struct file_operations wdtpci_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.write		= wdtpci_write,
+	.unlocked_ioctl	= wdtpci_ioctl,
+	.open		= wdtpci_open,
+	.release	= wdtpci_release,
+};
+
+static struct miscdevice wdtpci_miscdev = {
+	.minor	= WATCHDOG_MINOR,
+	.name	= "watchdog",
+	.fops	= &wdtpci_fops,
+};
+
+#ifdef CONFIG_WDT_501_PCI
+static const struct file_operations wdtpci_temp_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= wdtpci_temp_read,
+	.open		= wdtpci_temp_open,
+	.release	= wdtpci_temp_release,
+};
+
+static struct miscdevice temp_miscdev = {
+	.minor	= TEMP_MINOR,
+	.name	= "temperature",
+	.fops	= &wdtpci_temp_fops,
+};
+#endif /* CONFIG_WDT_501_PCI */
+
+/*
+ *	The WDT card needs to learn about soft shutdowns in order to
+ *	turn the timebomb registers off.
+ */
+
+static struct notifier_block wdtpci_notifier = {
+	.notifier_call = wdtpci_notify_sys,
+};
+
+
+static int __devinit wdtpci_init_one(struct pci_dev *dev,
+					const struct pci_device_id *ent)
+{
+	int ret = -EIO;
+
+	dev_count++;
+	if (dev_count > 1) {
+		printk(KERN_ERR PFX "This driver only supports one device\n");
+		return -ENODEV;
+	}
+
+	if (pci_enable_device(dev)) {
+		printk(KERN_ERR PFX "Not possible to enable PCI Device\n");
+		return -ENODEV;
+	}
+
+	if (pci_resource_start(dev, 2) == 0x0000) {
+		printk(KERN_ERR PFX "No I/O-Address for card detected\n");
+		ret = -ENODEV;
+		goto out_pci;
+	}
+
+	irq = dev->irq;
+	io = pci_resource_start(dev, 2);
+
+	if (request_region(io, 16, "wdt_pci") == NULL) {
+		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", io);
+		goto out_pci;
+	}
+
+	if (request_irq(irq, wdtpci_interrupt, IRQF_DISABLED | IRQF_SHARED,
+			 "wdt_pci", &wdtpci_miscdev)) {
+		printk(KERN_ERR PFX "IRQ %d is not free\n", irq);
+		goto out_reg;
+	}
+
+	printk(KERN_INFO
+	 "PCI-WDT500/501 (PCI-WDG-CSM) driver 0.10 at 0x%04x (Interrupt %d)\n",
+								io, irq);
+
+	/* Check that the heartbeat value is within its range;
+	   if not reset to the default */
+	if (wdtpci_set_heartbeat(heartbeat)) {
+		wdtpci_set_heartbeat(WD_TIMO);
+		printk(KERN_INFO PFX
+		  "heartbeat value must be 0 < heartbeat < 65536, using %d\n",
+								WD_TIMO);
+	}
+
+	ret = register_reboot_notifier(&wdtpci_notifier);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register reboot notifier (err=%d)\n", ret);
+		goto out_irq;
+	}
+
+#ifdef CONFIG_WDT_501_PCI
+	ret = misc_register(&temp_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+					TEMP_MINOR, ret);
+		goto out_rbt;
+	}
+#endif /* CONFIG_WDT_501_PCI */
+
+	ret = misc_register(&wdtpci_miscdev);
+	if (ret) {
+		printk(KERN_ERR PFX
+			"cannot register miscdev on minor=%d (err=%d)\n",
+						WATCHDOG_MINOR, ret);
+		goto out_misc;
+	}
+
+	printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+		heartbeat, nowayout);
+#ifdef CONFIG_WDT_501_PCI
+	printk(KERN_INFO "wdt: Fan Tachometer is %s\n",
+				(tachometer ? "Enabled" : "Disabled"));
+#endif /* CONFIG_WDT_501_PCI */
+
+	ret = 0;
+out:
+	return ret;
+
+out_misc:
+#ifdef CONFIG_WDT_501_PCI
+	misc_deregister(&temp_miscdev);
+out_rbt:
+#endif /* CONFIG_WDT_501_PCI */
+	unregister_reboot_notifier(&wdtpci_notifier);
+out_irq:
+	free_irq(irq, &wdtpci_miscdev);
+out_reg:
+	release_region(io, 16);
+out_pci:
+	pci_disable_device(dev);
+	goto out;
+}
+
+
+static void __devexit wdtpci_remove_one(struct pci_dev *pdev)
+{
+	/* here we assume only one device will ever have
+	 * been picked up and registered by probe function */
+	misc_deregister(&wdtpci_miscdev);
+#ifdef CONFIG_WDT_501_PCI
+	misc_deregister(&temp_miscdev);
+#endif /* CONFIG_WDT_501_PCI */
+	unregister_reboot_notifier(&wdtpci_notifier);
+	free_irq(irq, &wdtpci_miscdev);
+	release_region(io, 16);
+	pci_disable_device(pdev);
+	dev_count--;
+}
+
+
+static struct pci_device_id wdtpci_pci_tbl[] = {
+	{
+		.vendor	   = PCI_VENDOR_ID_ACCESSIO,
+		.device	   = PCI_DEVICE_ID_WDG_CSM,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+	},
+	{ 0, }, /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, wdtpci_pci_tbl);
+
+
+static struct pci_driver wdtpci_driver = {
+	.name		= "wdt_pci",
+	.id_table	= wdtpci_pci_tbl,
+	.probe		= wdtpci_init_one,
+	.remove		= __devexit_p(wdtpci_remove_one),
+};
+
+
+/**
+ *	wdtpci_cleanup:
+ *
+ *	Unload the watchdog. You cannot do this with any file handles open.
+ *	If your watchdog is set to continue ticking on close and you unload
+ *	it, well it keeps ticking. We won't get the interrupt but the board
+ *	will not touch PC memory so all is fine. You just have to load a new
+ *	module in xx seconds or reboot.
+ */
+
+static void __exit wdtpci_cleanup(void)
+{
+	pci_unregister_driver(&wdtpci_driver);
+}
+
+
+/**
+ * 	wdtpci_init:
+ *
+ *	Set up the WDT watchdog board. All we have to do is grab the
+ *	resources we require and bitch if anyone beat us to them.
+ *	The open() function will actually kick the board off.
+ */
+
+static int __init wdtpci_init(void)
+{
+	return pci_register_driver(&wdtpci_driver);
+}
+
+
+module_init(wdtpci_init);
+module_exit(wdtpci_cleanup);
+
+MODULE_AUTHOR("JP Nollmann, Alan Cox");
+MODULE_DESCRIPTION("Driver for the ICS PCI-WDT500/501 watchdog cards");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);