Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (33 commits)
  [MIPS] Add missing backslashes to macro definitions.
  [MIPS] Death list of board support to be removed after 2.6.18.
  [MIPS] Remove BSD and Sys V compat data types.
  [MIPS] ioc3.h: Uses u8, so include <linux/types.h>.
  [MIPS] 74K: Assume it will also have an AR bit in config7
  [MIPS] Treat CPUs with AR bit as physically indexed.
  [MIPS] Oprofile: Support VSMP on 34K.
  [MIPS] MIPS32/MIPS64 S-cache fix and cleanup
  [MIPS] excite: PCI makefile needs to use += if it wants a chance to work.
  [MIPS] excite: plat_setup -> plat_mem_setup.
  [MIPS] au1xxx: export dbdma functions
  [MIPS] au1xxx: dbdma, no sleeping under spin_lock
  [MIPS] au1xxx: fix PSC_SMBTXRX_RSR.
  [MIPS] Early printk for IP27.
  [MIPS] Fix handling of 0 length I & D caches.
  [MIPS] Typo fixes.
  [MIPS] MIPS32/MIPS64 secondary cache management
  [MIPS] Fix FIXADDR_TOP for TX39/TX49.
  [MIPS] Remove first timer interrupt setup in wrppmc_timer_setup()
  [MIPS] Fix configuration of R2 CPU features and multithreading.
  ...

45 files changed, 476 insertions, 423 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 08c2ece..747a9c1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -308,6 +308,7 @@ config MIPS_ATLAS
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
 	help
 	  This enables support for the MIPS Technologies Atlas evaluation
 	  board.
@@ -324,6 +325,7 @@ config MIPS_MALTA
 	select I8259
 	select MIPS_BOARDS_GEN
 	select MIPS_BONITO64
+	select MIPS_CPU_SCACHE
 	select MIPS_GT64120
 	select MIPS_MSC
 	select SWAP_IO_SPACE
@@ -336,6 +338,7 @@ config MIPS_MALTA
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_MULTITHREADING
 	help
 	  This enables support for the MIPS Technologies Malta evaluation
 	  board.
@@ -358,7 +361,7 @@ config MIPS_SEAD
 	  board.
 
 config WR_PPMC
-	bool "Support for Wind River PPMC board"
+	bool "Wind River PPMC board"
 	select IRQ_CPU
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
@@ -536,6 +539,7 @@ config PMC_YOSEMITE
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
+	select SYS_SUPPORTS_SMP
 	help
 	  Yosemite is an evaluation board for the RM9000x2 processor
 	  manufactured by PMC-Sierra.
@@ -590,6 +594,7 @@ config SGI_IP22
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_SMP
 	help
 	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
 	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
@@ -601,6 +606,7 @@ config SGI_IP27
 	select ARC64
 	select BOOT_ELF64
 	select DMA_IP27
+	select EARLY_PRINTK
 	select HW_HAS_PCI
 	select PCI_DOMAINS
 	select SYS_HAS_CPU_R10000
@@ -1249,7 +1255,7 @@ config CPU_R6000
 	select CPU_SUPPORTS_32BIT_KERNEL
 	help
 	  MIPS Technologies R6000 and R6000A series processors.  Note these
-	  processors are extremly rare and the support for them is incomplete.
+	  processors are extremely rare and the support for them is incomplete.
 
 config CPU_NEVADA
 	bool "RM52xx"
@@ -1370,7 +1376,7 @@ config SYS_HAS_CPU_SB1
 endmenu
 
 #
-# These two indicate any levelof the MIPS32 and MIPS64 architecture
+# These two indicate any level of the MIPS32 and MIPS64 architecture
 #
 config CPU_MIPS32
 	bool
@@ -1381,7 +1387,7 @@ config CPU_MIPS64
 	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
 
 #
-# These two indicate the revision of the architecture, either 32 bot 64 bit.
+# These two indicate the revision of the architecture, either Release 1 or Release 2
 #
 config CPU_MIPSR1
 	bool
@@ -1474,6 +1480,13 @@ config IP22_CPU_SCACHE
 	bool
 	select BOARD_SCACHE
 
+#
+# Support for a MIPS32 / MIPS64 style S-caches
+#
+config MIPS_CPU_SCACHE
+	bool
+	select BOARD_SCACHE
+
 config R5000_CPU_SCACHE
 	bool
 	select BOARD_SCACHE
@@ -1493,32 +1506,57 @@ config SIBYTE_DMA_PAGEOPS
 config CPU_HAS_PREFETCH
 	bool
 
-config MIPS_MT
-	bool "Enable MIPS MT"
-
 choice
 	prompt "MIPS MT options"
-	depends on MIPS_MT
+
+config MIPS_MT_DISABLED
+	bool "Disable multithreading support."
+	help
+	  Use this option if your workload can't take advantage of
+	  MIPS hardware multithreading support.  On systems that don't have
+	  the option of an MT-enabled processor this option will be the only
+	  option in this menu.
 
 config MIPS_MT_SMTC
 	bool "SMTC: Use all TCs on all VPEs for SMP"
+	depends on CPU_MIPS32_R2
+	#depends on CPU_MIPS64_R2		# once there is hardware ...
+	depends on SYS_SUPPORTS_MULTITHREADING
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_SRS
+	select MIPS_MT
 	select SMP
+	help
+	  This is a kernel model which is known a SMTC or lately has been
+	  marketesed into SMVP.
 
 config MIPS_MT_SMP
 	bool "Use 1 TC on each available VPE for SMP"
+	depends on SYS_SUPPORTS_MULTITHREADING
+	select CPU_MIPSR2_IRQ_VI
+	select CPU_MIPSR2_SRS
+	select MIPS_MT
 	select SMP
+	help
+	  This is a kernel model which is also known a VSMP or lately
+	  has been marketesed into SMVP.
 
 config MIPS_VPE_LOADER
 	bool "VPE loader support."
-	depends on MIPS_MT
+	depends on SYS_SUPPORTS_MULTITHREADING
+	select MIPS_MT
 	help
 	  Includes a loader for loading an elf relocatable object
 	  onto another VPE and running it.
 
 endchoice
 
+config MIPS_MT
+	bool
+
+config SYS_SUPPORTS_MULTITHREADING
+	bool
+
 config MIPS_MT_FPAFF
 	bool "Dynamic FPU affinity for FP-intensive threads"
 	depends on MIPS_MT
@@ -1575,32 +1613,23 @@ config CPU_HAS_LLSC
 config CPU_HAS_WB
 	bool
 
+#
+# Vectored interrupt mode is an R2 feature
+#
 config CPU_MIPSR2_IRQ_VI
-	bool "Vectored interrupt mode"
-	depends on CPU_MIPSR2
-	help
-	   Vectored interrupt mode allowing faster dispatching of interrupts.
-	   The board support code needs to be written to take advantage of this
-	   mode.  Compatibility code is included to allow the kernel to run on
-	   a CPU that does not support vectored interrupts.  It's safe to
-	   say Y here.
+	bool
 
+#
+# Extended interrupt mode is an R2 feature
+#
 config CPU_MIPSR2_IRQ_EI
-	bool "External interrupt controller mode"
-	depends on CPU_MIPSR2
-	help
-	   Extended interrupt mode takes advantage of an external interrupt
-	   controller to allow fast dispatching from many possible interrupt
-	   sources. Say N unless you know that external interrupt support is
-	   required.
+	bool
 
+#
+# Shadow registers are an R2 feature
+#
 config CPU_MIPSR2_SRS
-	bool "Make shadow set registers available for interrupt handlers"
-	depends on CPU_MIPSR2_IRQ_VI || CPU_MIPSR2_IRQ_EI
-	help
-	   Allow the kernel to use shadow register sets for fast interrupts.
-	   Interrupt handlers must be specially written to use shadow sets.
-	   Say N unless you know that shadow register set upport is needed.
+	bool
 
 config CPU_HAS_SYNC
 	bool
@@ -1681,8 +1710,8 @@ source "mm/Kconfig"
 
 config SMP
 	bool "Multi-Processing support"
-	depends on CPU_RM9000 || ((SIBYTE_BCM1x80 || SIBYTE_BCM1x55 || SIBYTE_SB1250 || QEMU) && !SIBYTE_STANDALONE) || SGI_IP27 || MIPS_MT_SMP || MIPS_MT_SMTC
-	---help---
+	depends on SYS_SUPPORTS_SMP
+	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
 	  you have a system with more than one CPU, say Y.
@@ -1701,6 +1730,9 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config SYS_SUPPORTS_SMP
+	bool
+
 config NR_CPUS
 	int "Maximum number of CPUs (2-64)"
 	range 2 64
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index d593014..ebbb9ad 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -374,6 +374,7 @@ core-$(CONFIG_PMC_YOSEMITE)	+= arch/mips/pmc-sierra/yosemite/
 cflags-$(CONFIG_PMC_YOSEMITE)	+= -Iinclude/asm-mips/mach-yosemite
 load-$(CONFIG_PMC_YOSEMITE)	+= 0xffffffff80100000
 
+#
 # Qemu simulating MIPS32 4Kc
 #
 core-$(CONFIG_QEMU)		+= arch/mips/qemu/
diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c
index 6ee090b..a547e47 100644
--- a/arch/mips/au1000/common/dbdma.c
+++ b/arch/mips/au1000/common/dbdma.c
@@ -290,7 +290,7 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
 				/* If kmalloc fails, it is caught below same
 				 * as a channel not available.
 				 */
-				ctp = kmalloc(sizeof(chan_tab_t), GFP_KERNEL);
+				ctp = kmalloc(sizeof(chan_tab_t), GFP_ATOMIC);
 				chan_tab_ptr[i] = ctp;
 				break;
 			}
@@ -730,6 +730,8 @@ au1xxx_dbdma_get_dest(u32 chanid, void **buf, int *nbytes)
 	return rv;
 }
 
+EXPORT_SYMBOL_GPL(au1xxx_dbdma_get_dest);
+
 void
 au1xxx_dbdma_stop(u32 chanid)
 {
@@ -821,6 +823,8 @@ au1xxx_get_dma_residue(u32 chanid)
 	return rv;
 }
 
+EXPORT_SYMBOL_GPL(au1xxx_get_dma_residue);
+
 void
 au1xxx_dbdma_chan_free(u32 chanid)
 {
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index da74ac2..12d6ede 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -585,13 +585,13 @@ void intc1_req1_irqdispatch(struct pt_regs *regs)
  * au_sleep function in power.c.....maybe I should just pm_register()
  * them instead?
  */
-static uint	sleep_intctl_config0[2];
-static uint	sleep_intctl_config1[2];
-static uint	sleep_intctl_config2[2];
-static uint	sleep_intctl_src[2];
-static uint	sleep_intctl_assign[2];
-static uint	sleep_intctl_wake[2];
-static uint	sleep_intctl_mask[2];
+static unsigned int	sleep_intctl_config0[2];
+static unsigned int	sleep_intctl_config1[2];
+static unsigned int	sleep_intctl_config2[2];
+static unsigned int	sleep_intctl_src[2];
+static unsigned int	sleep_intctl_assign[2];
+static unsigned int	sleep_intctl_wake[2];
+static unsigned int	sleep_intctl_mask[2];
 
 void
 save_au1xxx_intctl(void)
diff --git a/arch/mips/au1000/common/power.c b/arch/mips/au1000/common/power.c
index f492631..b035513 100644
--- a/arch/mips/au1000/common/power.c
+++ b/arch/mips/au1000/common/power.c
@@ -80,17 +80,17 @@ static DEFINE_SPINLOCK(pm_lock);
  * We only have to save/restore registers that aren't otherwise
  * done as part of a driver pm_* function.
  */
-static uint	sleep_aux_pll_cntrl;
-static uint	sleep_cpu_pll_cntrl;
-static uint	sleep_pin_function;
-static uint	sleep_uart0_inten;
-static uint	sleep_uart0_fifoctl;
-static uint	sleep_uart0_linectl;
-static uint	sleep_uart0_clkdiv;
-static uint	sleep_uart0_enable;
-static uint	sleep_usbhost_enable;
-static uint	sleep_usbdev_enable;
-static uint	sleep_static_memctlr[4][3];
+static unsigned int	sleep_aux_pll_cntrl;
+static unsigned int	sleep_cpu_pll_cntrl;
+static unsigned int	sleep_pin_function;
+static unsigned int	sleep_uart0_inten;
+static unsigned int	sleep_uart0_fifoctl;
+static unsigned int	sleep_uart0_linectl;
+static unsigned int	sleep_uart0_clkdiv;
+static unsigned int	sleep_uart0_enable;
+static unsigned int	sleep_usbhost_enable;
+static unsigned int	sleep_usbdev_enable;
+static unsigned int	sleep_static_memctlr[4][3];
 
 /* Define this to cause the value you write to /proc/sys/pm/sleep to
  * set the TOY timer for the amount of time you want to sleep.
diff --git a/arch/mips/au1000/csb250/init.c b/arch/mips/au1000/csb250/init.c
index a4898b1..83f1b31 100644
--- a/arch/mips/au1000/csb250/init.c
+++ b/arch/mips/au1000/csb250/init.c
@@ -65,9 +65,9 @@ int __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
 
 	/* We use a0 and a1 to pass initrd start and size.
 	*/
-	if (((uint) argc > 0) && ((uint)argv > 0)) {
-		my_initrd_start = (uint)argc;
-		my_initrd_size = (uint)argv;
+	if (((unsigned int) argc > 0) && ((uint)argv > 0)) {
+		my_initrd_start = (unsigned int)argc;
+		my_initrd_size = (unsigned int)argv;
 	}
 
 	/* First argv is ignored.
diff --git a/arch/mips/basler/excite/excite_setup.c b/arch/mips/basler/excite/excite_setup.c
index 005b025..3d7670e 100644
--- a/arch/mips/basler/excite/excite_setup.c
+++ b/arch/mips/basler/excite/excite_setup.c
@@ -254,7 +254,7 @@ static int __init excite_platform_init(void)
 	return 0;
 }
 
-void __init plat_setup(void)
+void __init plat_mem_setup(void)
 {
 	volatile u32 * const boot_ocd_base = (u32 *) 0xbf7fc000;
 
diff --git a/arch/mips/ddb5xxx/common/prom.c b/arch/mips/ddb5xxx/common/prom.c
index 00c62c1..20c845c 100644
--- a/arch/mips/ddb5xxx/common/prom.c
+++ b/arch/mips/ddb5xxx/common/prom.c
@@ -21,8 +21,6 @@
 const char *get_system_type(void)
 {
 	switch (mips_machtype) {
-	case MACH_NEC_DDB5074:		return "NEC DDB Vrc-5074";
-	case MACH_NEC_DDB5476:		return "NEC DDB Vrc-5476";
 	case MACH_NEC_DDB5477:		return "NEC DDB Vrc-5477";
 	case MACH_NEC_ROCKHOPPER:	return "NEC Rockhopper";
 	case MACH_NEC_ROCKHOPPERII:     return "NEC RockhopperII";
diff --git a/arch/mips/gt64120/common/Makefile b/arch/mips/gt64120/common/Makefile
index eba5051..1ef676e 100644
--- a/arch/mips/gt64120/common/Makefile
+++ b/arch/mips/gt64120/common/Makefile
@@ -3,4 +3,3 @@
 #
 
 obj-y	 		+= time.o
-obj-$(CONFIG_PCI)	+= pci.o
diff --git a/arch/mips/gt64120/common/pci.c b/arch/mips/gt64120/common/pci.c
deleted file mode 100644
index e9e5419..0000000
--- a/arch/mips/gt64120/common/pci.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * Galileo Evaluation Boards PCI support.
- *
- * The general-purpose functions to read/write and configure the GT64120A's
- * PCI registers (function names start with pci0 or pci1) are either direct
- * copies of functions written by Galileo Technology, or are modifications
- * of their functions to work with Linux 2.4 vs Linux 2.2.  These functions
- * are Copyright - Galileo Technology.
- *
- * Other functions are derived from other MIPS PCI implementations, or were
- * written by RidgeRun, Inc,  Copyright (C) 2000 RidgeRun, Inc.
- *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.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  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.
- */
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <asm/gt64120.h>
-
-#define SELF 0
-
-/*
- * pciXReadConfigReg  - Read from a PCI configuration register
- *                    - Make sure the GT is configured as a master before
- *                      reading from another device on the PCI.
- *                   - The function takes care of Big/Little endian conversion.
- * INPUTS:   regOffset: The register offset as it apears in the GT spec (or PCI
- *                        spec)
- *           pciDevNum: The device number needs to be addressed.
- * RETURNS: data , if the data == 0xffffffff check the master abort bit in the
- *                 cause register to make sure the data is valid
- *
- *  Configuration Address 0xCF8:
- *
- *       31 30    24 23  16 15  11 10     8 7      2  0     <=bit Number
- *  |congif|Reserved|  Bus |Device|Function|Register|00|
- *  |Enable|        |Number|Number| Number | Number |  |    <=field Name
- *
- */
-static unsigned int pci0ReadConfigReg(int offset, struct pci_dev *device)
-{
-	unsigned int DataForRegCf8;
-	unsigned int data;
-
-	DataForRegCf8 = ((PCI_SLOT(device->devfn) << 11) |
-			 (PCI_FUNC(device->devfn) << 8) |
-			 (offset & ~0x3)) | 0x80000000;
-	GT_WRITE(GT_PCI0_CFGADDR_OFS, DataForRegCf8);
-
-	/*
-	 * The casual observer might wonder why the READ is duplicated here,
-	 * rather than immediately following the WRITE, and just have the swap
-	 * in the "if".  That's because there is a latency problem with trying
-	 * to read immediately after setting up the address register.  The "if"
-	 * check gives enough time for the address to stabilize, so the READ
-	 * can work.
-	 */
-	if (PCI_SLOT(device->devfn) == SELF)	/* This board */
-		return GT_READ(GT_PCI0_CFGDATA_OFS);
-	else		/* PCI is little endian so swap the Data. */
-		return __GT_READ(GT_PCI0_CFGDATA_OFS);
-}
-
-/*
- * pciXWriteConfigReg - Write to a PCI configuration register
- *                    - Make sure the GT is configured as a master before
- *                      writingto another device on the PCI.
- *                    - The function takes care of Big/Little endian conversion.
- * Inputs:   unsigned int regOffset: The register offset as it apears in the
- *           GT spec
- *                   (or any other PCI device spec)
- *           pciDevNum: The device number needs to be addressed.
- *
- *  Configuration Address 0xCF8:
- *
- *       31 30    24 23  16 15  11 10     8 7      2  0     <=bit Number
- *  |congif|Reserved|  Bus |Device|Function|Register|00|
- *  |Enable|        |Number|Number| Number | Number |  |    <=field Name
- *
- */
-static void pci0WriteConfigReg(unsigned int offset,
-			       struct pci_dev *device, unsigned int data)
-{
-	unsigned int DataForRegCf8;
-
-	DataForRegCf8 = ((PCI_SLOT(device->devfn) << 11) |
-			 (PCI_FUNC(device->devfn) << 8) |
-			 (offset & ~0x3)) | 0x80000000;
-	GT_WRITE(GT_PCI0_CFGADDR_OFS, DataForRegCf8);
-
-	if (PCI_SLOT(device->devfn) == SELF) 	/* This board */
-		GT_WRITE(GT_PCI0_CFGDATA_OFS, data);
-	else 			/* configuration Transaction over the pci. */
-		__GT_WRITE(GT_PCI0_CFGDATA_OFS, data);
-}
-
-extern struct pci_ops gt64120_pci_ops;
-
-void __init pcibios_init(void)
-{
-	u32 tmp;
-	struct pci_dev controller;
-
-	controller.devfn = SELF;
-
-	tmp = GT_READ(GT_PCI0_CMD_OFS);		/* Huh??? -- Ralf  */
-	tmp = GT_READ(GT_PCI0_BARE_OFS);
-
-	/*
-	 * You have to enable bus mastering to configure any other
-	 * card on the bus.
-	 */
-	tmp = pci0ReadConfigReg(PCI_COMMAND, &controller);
-	tmp |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SERR;
-	pci0WriteConfigReg(PCI_COMMAND, &controller, tmp);
-
-	/*
-	 *  Reset PCI I/O and PCI MEM values to ones supported by EVM.
-	 */
-	ioport_resource.start	= GT_PCI_IO_BASE;
-	ioport_resource.end	= GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1;
-	iomem_resource.start	= GT_PCI_MEM_BASE;
-	iomem_resource.end	= GT_PCI_MEM_BASE + GT_PCI_MEM_SIZE - 1;
-
-	pci_scan_bus(0, &gt64120_pci_ops, NULL);
-}
diff --git a/arch/mips/gt64120/momenco_ocelot/setup.c b/arch/mips/gt64120/momenco_ocelot/setup.c
index 1193a22..9804642 100644
--- a/arch/mips/gt64120/momenco_ocelot/setup.c
+++ b/arch/mips/gt64120/momenco_ocelot/setup.c
@@ -164,8 +164,8 @@ void __init plat_mem_setup(void)
 	pm_power_off = momenco_ocelot_power_off;
 
 	/*
-	 * initrd_start = (ulong)ocelot_initrd_start;
-	 * initrd_end = (ulong)ocelot_initrd_start + (ulong)ocelot_initrd_size;
+	 * initrd_start = (unsigned long)ocelot_initrd_start;
+	 * initrd_end = (unsigned long)ocelot_initrd_start + (ulong)ocelot_initrd_size;
 	 * initrd_below_start_ok = 1;
 	 */
 
diff --git a/arch/mips/gt64120/wrppmc/Makefile b/arch/mips/gt64120/wrppmc/Makefile
index 72606b9..7cf5220 100644
--- a/arch/mips/gt64120/wrppmc/Makefile
+++ b/arch/mips/gt64120/wrppmc/Makefile
@@ -9,6 +9,6 @@
 # Makefile for the Wind River MIPS 4KC PPMC Eval Board
 #
 
-obj-y	+= int-handler.o irq.o reset.o setup.o time.o pci.o
+obj-y += irq.o reset.o setup.o time.o pci.o
 
 EXTRA_AFLAGS := $(CFLAGS)
diff --git a/arch/mips/gt64120/wrppmc/int-handler.S b/arch/mips/gt64120/wrppmc/int-handler.S
deleted file mode 100644
index edee7b3..0000000
--- a/arch/mips/gt64120/wrppmc/int-handler.S
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
- * Copyright (C) Wind River System Inc. Rongkai.Zhan <rongkai.zhan@windriver.com>
- */
-#include <asm/asm.h>
-#include <asm/mipsregs.h>
-#include <asm/addrspace.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-#include <asm/mach-wrppmc/mach-gt64120.h>
-
-	.align	5
-	.set	noat
-NESTED(handle_IRQ, PT_SIZE, sp)
-	SAVE_ALL
-	CLI				# Important: mark KERNEL mode !
-	.set	at
-
-	mfc0	t0, CP0_CAUSE		# get pending interrupts
-	mfc0	t1, CP0_STATUS		# get enabled interrupts
-	and	t0, t0, t1		# get allowed interrupts
-	andi	t0, t0, 0xFF00
-	beqz	t0, 1f
-	move	a1, sp			# Prepare 'struct pt_regs *regs' pointer
-
-	andi	t1, t0, CAUSEF_IP7	# CPU Compare/Count internal timer
-	bnez	t1, handle_cputimer_irq
-	andi	t1, t0, CAUSEF_IP6	# UART 16550 port
-	bnez	t1, handle_uart_irq
-	andi	t1, t0, CAUSEF_IP3	# PCI INT_A
-	bnez	t1, handle_pci_intA_irq
-
-	/* wrong alarm or masked ... */
-1:	j	spurious_interrupt
-	nop
-END(handle_IRQ)
-
-	.align	5
-handle_cputimer_irq:
-	li	a0, WRPPMC_MIPS_TIMER_IRQ
-	jal	do_IRQ
-	j	ret_from_irq
-
-	.align	5
-handle_uart_irq:
-	li	a0, WRPPMC_UART16550_IRQ
-	jal	do_IRQ
-	j	ret_from_irq
-
-	.align	5
-handle_pci_intA_irq:
-	li	a0, WRPPMC_PCI_INTA_IRQ
-	jal	do_IRQ
-	j	ret_from_irq
-
diff --git a/arch/mips/gt64120/wrppmc/irq.c b/arch/mips/gt64120/wrppmc/irq.c
index 8605687..8d75a43 100644
--- a/arch/mips/gt64120/wrppmc/irq.c
+++ b/arch/mips/gt64120/wrppmc/irq.c
@@ -30,7 +30,19 @@
 #include <asm/irq_cpu.h>
 #include <asm/gt64120.h>
 
-extern asmlinkage void handle_IRQ(void);
+asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+{
+	unsigned int pending = read_c0_status() & read_c0_cause();
+
+	if (pending & STATUSF_IP7)
+		do_IRQ(WRPPMC_MIPS_TIMER_IRQ, regs);	/* CPU Compare/Count internal timer */
+	else if (pending & STATUSF_IP6)
+		do_IRQ(WRPPMC_UART16550_IRQ, regs);	/* UART 16550 port */
+	else if (pending & STATUSF_IP3)
+		do_IRQ(WRPPMC_PCI_INTA_IRQ, regs);	/* PCI INT_A */
+	else
+		spurious_interrupt(regs);
+}
 
 /**
  * Initialize GT64120 Interrupt Controller
@@ -50,12 +62,6 @@ void gt64120_init_pic(void)
 
 void __init arch_init_irq(void)
 {
-	/* enable all CPU interrupt bits. */
-	set_c0_status(ST0_IM);	/* IE bit is still 0 */
-
-	/* Install MIPS Interrupt Trap Vector */
-	set_except_vector(0, handle_IRQ);
-
 	/* IRQ 0 - 7 are for MIPS common irq_cpu controller */
 	mips_cpu_irq_init(0);
 
diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c
index 20c591e..2db6375 100644
--- a/arch/mips/gt64120/wrppmc/setup.c
+++ b/arch/mips/gt64120/wrppmc/setup.c
@@ -125,7 +125,7 @@ static void wrppmc_setup_serial(void)
 }
 #endif
 
-void __init plat_setup(void)
+void __init plat_mem_setup(void)
 {
 	extern void wrppmc_time_init(void);
 	extern void wrppmc_timer_setup(struct irqaction *);
diff --git a/arch/mips/gt64120/wrppmc/time.c b/arch/mips/gt64120/wrppmc/time.c
index 175d22a..6c24a82 100644
--- a/arch/mips/gt64120/wrppmc/time.c
+++ b/arch/mips/gt64120/wrppmc/time.c
@@ -31,10 +31,6 @@ void __init wrppmc_timer_setup(struct irqaction *irq)
 {
 	/* Install ISR for timer interrupt */
 	setup_irq(WRPPMC_MIPS_TIMER_IRQ, irq);
-
-	/* to generate the first timer interrupt */
-	write_c0_compare(mips_hpt_frequency/HZ);
-	write_c0_count(0);
 }
 
 /*
diff --git a/arch/mips/kernel/apm.c b/arch/mips/kernel/apm.c
index 15f46b4..7bdbcd8 100644
--- a/arch/mips/kernel/apm.c
+++ b/arch/mips/kernel/apm.c
@@ -260,7 +260,7 @@ static unsigned int apm_poll(struct file *fp, poll_table * wait)
  *   has acknowledge does the actual suspend happen.
  */
 static int
-apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg)
+apm_ioctl(struct inode * inode, struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	struct apm_user *as = filp->private_data;
 	unsigned long flags;
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 8c2c359..e045aba 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -597,8 +597,6 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_25KF:
 		c->cputype = CPU_25KF;
-		/* Probe for L2 cache */
-		c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
 		break;
 	case PRID_IMP_34K:
 		c->cputype = CPU_34K;
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index a9c6de1..4575651 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -87,7 +87,7 @@ FEXPORT(restore_all)			# restore full frame
 	ori	v1, v0, TCSTATUS_IXMT
 	mtc0	v1, CP0_TCSTATUS
 	andi	v0, TCSTATUS_IXMT
-	ehb
+	_ehb
 	mfc0	t0, CP0_TCCONTEXT
 	DMT	9				# dmt t1
 	jal	mips_ihb
@@ -95,7 +95,7 @@ FEXPORT(restore_all)			# restore full frame
 	andi	t3, t0, 0xff00
 	or	t2, t2, t3
 	mtc0	t2, CP0_STATUS
-	ehb
+	_ehb
 	andi	t1, t1, VPECONTROL_TE
 	beqz	t1, 1f
 	EMT
@@ -105,7 +105,7 @@ FEXPORT(restore_all)			# restore full frame
 	xori	v1, v1, TCSTATUS_IXMT
 	or	v1, v0, v1
 	mtc0	v1, CP0_TCSTATUS
-	ehb
+	_ehb
 	xor	t0, t0, t3
 	mtc0	t0, CP0_TCCONTEXT
 #endif /* CONFIG_MIPS_MT_SMTC */
diff --git a/arch/mips/kernel/gdb-low.S b/arch/mips/kernel/gdb-low.S
index 5fd7a8a..8760131 100644
--- a/arch/mips/kernel/gdb-low.S
+++ b/arch/mips/kernel/gdb-low.S
@@ -291,7 +291,7 @@
 		ori	t1, t2, TCSTATUS_IXMT
 		mtc0	t1, CP0_TCSTATUS
 		andi	t2, t2, TCSTATUS_IXMT
-		ehb
+		_ehb
 		DMT	9				# dmt	t1
 		jal	mips_ihb
 		nop
@@ -310,7 +310,7 @@
 		xori	t1, t1, TCSTATUS_IXMT
 		or	t1, t1, t2
 		mtc0	t1, CP0_TCSTATUS
-		ehb
+		_ehb
 #endif /* CONFIG_MIPS_MT_SMTC */
 		LONG_L	v0, GDB_FR_STATUS(sp)
 		LONG_L	v1, GDB_FR_EPC(sp)
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index ff7af36..6888cde 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -214,7 +214,7 @@ NESTED(except_vec_vi_handler, 0, sp)
 	mtc0	t0, CP0_TCCONTEXT
 	xor	t1, t1, t0
 	mtc0	t1, CP0_STATUS
-	ehb
+	_ehb
 #endif /* CONFIG_MIPS_MT_SMTC */
 	CLI
 	move	a0, sp
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index bdf6f6e..c018098 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -96,7 +96,7 @@
 	/* Clear TKSU, leave IXMT */
 	xori	t0, 0x00001800
 	mtc0	t0, CP0_TCSTATUS
-	ehb
+	_ehb
 	/* We need to leave the global IE bit set, but clear EXL...*/
 	mfc0	t0, CP0_STATUS
 	or	t0, ST0_CU0 | ST0_EXL | ST0_ERL | \set | \clr
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index db94e55..e1b85e6 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -94,7 +94,7 @@
 	ori	t1, t2, TCSTATUS_IXMT
 	mtc0	t1, CP0_TCSTATUS
 	andi	t2, t2, TCSTATUS_IXMT
-	ehb
+	_ehb
 	DMT	8				# dmt	t0
 	move	t1,ra
 	jal	mips_ihb
@@ -109,7 +109,7 @@
 	or	a2, t1
 	mtc0	a2, CP0_STATUS
 #ifdef CONFIG_MIPS_MT_SMTC
-	ehb
+	_ehb
 	andi	t0, t0, VPECONTROL_TE
 	beqz	t0, 1f
 	emt
@@ -118,7 +118,7 @@
 	xori	t1, t1, TCSTATUS_IXMT
 	or	t1, t1, t2
 	mtc0	t1, CP0_TCSTATUS
-	ehb
+	_ehb
 #endif /* CONFIG_MIPS_MT_SMTC */
 	move	v0, a0
 	jr	ra
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 2d2fdf7..6344be4 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -647,6 +647,7 @@ einval:	li	v0, -EINVAL
 	sys	sys_unshare		1
 	sys	sys_splice		4
 	sys	sys_sync_file_range	7	/* 4305 */
+	sys	sys_tee			4
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 9ba7508..12d96c7 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -462,3 +462,4 @@ sys_call_table:
 	PTR	sys_unshare
 	PTR	sys_splice
 	PTR	sys_sync_file_range
+	PTR	sys_tee				/* 5265 */
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 942aca2..6856985 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -388,3 +388,4 @@ EXPORT(sysn32_call_table)
 	PTR	sys_unshare
 	PTR	sys_splice
 	PTR	sys_sync_file_range
+	PTR	sys_tee
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 8efb23a..0e63293 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -510,4 +510,5 @@ sys_call_table:
 	PTR	sys_unshare
 	PTR	sys_splice
 	PTR	sys32_sync_file_range		/* 4305 */
+	PTR	sys_tee
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index bfcec8d..d3e0871 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -488,6 +488,9 @@ static inline void resource_init(void)
 {
 	int i;
 
+	if (UNCAC_BASE != IO_BASE)
+		return;
+
 	code_resource.start = virt_to_phys(&_text);
 	code_resource.end = virt_to_phys(&_etext) - 1;
 	data_resource.start = virt_to_phys(&_etext);
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S
index c9d6519..72c6d98 100644
--- a/arch/mips/kernel/smtc-asm.S
+++ b/arch/mips/kernel/smtc-asm.S
@@ -52,12 +52,12 @@ FEXPORT(__smtc_ipi_vector)
 	.set	noat
 	/* Disable thread scheduling to make Status update atomic */
 	DMT	27					# dmt	k1
-	ehb
+	_ehb
 	/* Set EXL */
 	mfc0	k0,CP0_STATUS
 	ori	k0,k0,ST0_EXL
 	mtc0	k0,CP0_STATUS
-	ehb
+	_ehb
 	/* Thread scheduling now inhibited by EXL. Restore TE state. */
 	andi	k1,k1,VPECONTROL_TE
 	beqz	k1,1f
@@ -82,7 +82,7 @@ FEXPORT(__smtc_ipi_vector)
 	li	k1,ST0_CU0
 	or	k1,k1,k0
 	mtc0	k1,CP0_STATUS
-	ehb
+	_ehb
 	get_saved_sp
 	/* Interrupting TC will have pre-set values in slots in the new frame */
 2:	subu	k1,k1,PT_SIZE
@@ -90,7 +90,7 @@ FEXPORT(__smtc_ipi_vector)
 	lw	k0,PT_TCSTATUS(k1)
 	/* Write it to TCStatus to restore CU/KSU/IXMT state */
 	mtc0	k0,$2,1
-	ehb
+	_ehb
 	lw	k0,PT_EPC(k1)
 	mtc0	k0,CP0_EPC
 	/* Save all will redundantly recompute the SP, but use it for now */
@@ -116,7 +116,7 @@ LEAF(self_ipi)
 	mfc0	t0,CP0_TCSTATUS
 	ori	t1,t0,TCSTATUS_IXMT
 	mtc0	t1,CP0_TCSTATUS
-	ehb
+	_ehb
 	/* We know we're in kernel mode, so prepare stack frame */
 	subu	t1,sp,PT_SIZE
 	sw	ra,PT_EPC(t1)
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 5e8a18a..6da8c68 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -301,7 +301,7 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
  *
  * This is really horribly ugly.
  */
-asmlinkage int sys_ipc (uint call, int first, int second,
+asmlinkage int sys_ipc (unsigned int call, int first, int second,
 			unsigned long third, void __user *ptr, long fifth)
 {
 	int version, ret;
@@ -359,18 +359,18 @@ asmlinkage int sys_ipc (uint call, int first, int second,
 	case SHMAT:
 		switch (version) {
 		default: {
-			ulong raddr;
+			unsigned long raddr;
 			ret = do_shmat (first, (char __user *) ptr, second,
 					&raddr);
 			if (ret)
 				return ret;
-			return put_user (raddr, (ulong __user *) third);
+			return put_user (raddr, (unsigned long __user *) third);
 		}
 		case 1:	/* iBCS2 emulator entry point */
 			if (!segment_eq(get_fs(), get_ds()))
 				return -EINVAL;
 			return do_shmat (first, (char __user *) ptr, second,
-					 (ulong *) third);
+					 (unsigned long *) third);
 		}
 	case SHMDT:
 		return sys_shmdt ((char __user *)ptr);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index ad16ece..6797193 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1050,7 +1050,7 @@ void *set_except_vector(int n, void *addr)
 	return (void *)old_handler;
 }
 
-#ifdef CONFIG_CPU_MIPSR2
+#ifdef CONFIG_CPU_MIPSR2_SRS
 /*
  * MIPSR2 shadow register set allocation
  * FIXME: SMP...
@@ -1069,11 +1069,9 @@ static struct shadow_registers {
 
 static void mips_srs_init(void)
 {
-#ifdef CONFIG_CPU_MIPSR2_SRS
 	shadow_registers.sr_supported = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
 	printk(KERN_INFO "%d MIPSR2 register sets available\n",
 	       shadow_registers.sr_supported);
-#endif
 	shadow_registers.sr_allocated = 1;	/* Set 0 used by kernel */
 }
 
@@ -1198,7 +1196,14 @@ void *set_vi_handler(int n, void *addr)
 {
 	return set_vi_srs_handler(n, addr, 0);
 }
-#endif
+
+#else
+
+static inline void mips_srs_init(void)
+{
+}
+
+#endif /* CONFIG_CPU_MIPSR2_SRS */
 
 /*
  * This is used by native signal handling
@@ -1388,9 +1393,7 @@ void __init trap_init(void)
 	else
 		ebase = CAC_BASE;
 
-#ifdef CONFIG_CPU_MIPSR2
 	mips_srs_init();
-#endif
 
 	per_cpu_trap_init();
 
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index 4a622011..19e41fd 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_CPU_VR41XX)	+= c-r4k.o cex-gen.o pg-r4k.o tlb-r4k.o
 obj-$(CONFIG_IP22_CPU_SCACHE)	+= sc-ip22.o
 obj-$(CONFIG_R5000_CPU_SCACHE)  += sc-r5k.o
 obj-$(CONFIG_RM7000_CPU_SCACHE)	+= sc-rm7k.o
+obj-$(CONFIG_MIPS_CPU_SCACHE)	+= sc-mips.o
 
 #
 # Choose one DMA coherency model
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 4a43924..75d887e 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -60,13 +60,13 @@ static unsigned long scache_size __read_mostly;
 /*
  * Dummy cache handling routines for machines without boardcaches
  */
-static void no_sc_noop(void) {}
+static void cache_noop(void) {}
 
 static struct bcache_ops no_sc_ops = {
-	.bc_enable = (void *)no_sc_noop,
-	.bc_disable = (void *)no_sc_noop,
-	.bc_wback_inv = (void *)no_sc_noop,
-	.bc_inv = (void *)no_sc_noop
+	.bc_enable = (void *)cache_noop,
+	.bc_disable = (void *)cache_noop,
+	.bc_wback_inv = (void *)cache_noop,
+	.bc_inv = (void *)cache_noop
 };
 
 struct bcache_ops *bcops = &no_sc_ops;
@@ -94,7 +94,9 @@ static inline void r4k_blast_dcache_page_setup(void)
 {
 	unsigned long  dc_lsize = cpu_dcache_line_size();
 
-	if (dc_lsize == 16)
+	if (dc_lsize == 0)
+		r4k_blast_dcache_page = (void *)cache_noop;
+	else if (dc_lsize == 16)
 		r4k_blast_dcache_page = blast_dcache16_page;
 	else if (dc_lsize == 32)
 		r4k_blast_dcache_page = r4k_blast_dcache_page_dc32;
@@ -106,7 +108,9 @@ static inline void r4k_blast_dcache_page_indexed_setup(void)
 {
 	unsigned long dc_lsize = cpu_dcache_line_size();
 
-	if (dc_lsize == 16)
+	if (dc_lsize == 0)
+		r4k_blast_dcache_page_indexed = (void *)cache_noop;
+	else if (dc_lsize == 16)
 		r4k_blast_dcache_page_indexed = blast_dcache16_page_indexed;
 	else if (dc_lsize == 32)
 		r4k_blast_dcache_page_indexed = blast_dcache32_page_indexed;
@@ -118,7 +122,9 @@ static inline void r4k_blast_dcache_setup(void)
 {
 	unsigned long dc_lsize = cpu_dcache_line_size();
 
-	if (dc_lsize == 16)
+	if (dc_lsize == 0)
+		r4k_blast_dcache = (void *)cache_noop;
+	else if (dc_lsize == 16)
 		r4k_blast_dcache = blast_dcache16;
 	else if (dc_lsize == 32)
 		r4k_blast_dcache = blast_dcache32;
@@ -201,7 +207,9 @@ static inline void r4k_blast_icache_page_setup(void)
 {
 	unsigned long ic_lsize = cpu_icache_line_size();
 
-	if (ic_lsize == 16)
+	if (ic_lsize == 0)
+		r4k_blast_icache_page = (void *)cache_noop;
+	else if (ic_lsize == 16)
 		r4k_blast_icache_page = blast_icache16_page;
 	else if (ic_lsize == 32)
 		r4k_blast_icache_page = blast_icache32_page;
@@ -216,7 +224,9 @@ static inline void r4k_blast_icache_page_indexed_setup(void)
 {
 	unsigned long ic_lsize = cpu_icache_line_size();
 
-	if (ic_lsize == 16)
+	if (ic_lsize == 0)
+		r4k_blast_icache_page_indexed = (void *)cache_noop;
+	else if (ic_lsize == 16)
 		r4k_blast_icache_page_indexed = blast_icache16_page_indexed;
 	else if (ic_lsize == 32) {
 		if (R4600_V1_INDEX_ICACHEOP_WAR && cpu_is_r4600_v1_x())
@@ -238,7 +248,9 @@ static inline void r4k_blast_icache_setup(void)
 {
 	unsigned long ic_lsize = cpu_icache_line_size();
 
-	if (ic_lsize == 16)
+	if (ic_lsize == 0)
+		r4k_blast_icache = (void *)cache_noop;
+	else if (ic_lsize == 16)
 		r4k_blast_icache = blast_icache16;
 	else if (ic_lsize == 32) {
 		if (R4600_V1_INDEX_ICACHEOP_WAR && cpu_is_r4600_v1_x())
@@ -258,7 +270,7 @@ static inline void r4k_blast_scache_page_setup(void)
 	unsigned long sc_lsize = cpu_scache_line_size();
 
 	if (scache_size == 0)
-		r4k_blast_scache_page = (void *)no_sc_noop;
+		r4k_blast_scache_page = (void *)cache_noop;
 	else if (sc_lsize == 16)
 		r4k_blast_scache_page = blast_scache16_page;
 	else if (sc_lsize == 32)
@@ -276,7 +288,7 @@ static inline void r4k_blast_scache_page_indexed_setup(void)
 	unsigned long sc_lsize = cpu_scache_line_size();
 
 	if (scache_size == 0)
-		r4k_blast_scache_page_indexed = (void *)no_sc_noop;
+		r4k_blast_scache_page_indexed = (void *)cache_noop;
 	else if (sc_lsize == 16)
 		r4k_blast_scache_page_indexed = blast_scache16_page_indexed;
 	else if (sc_lsize == 32)
@@ -294,7 +306,7 @@ static inline void r4k_blast_scache_setup(void)
 	unsigned long sc_lsize = cpu_scache_line_size();
 
 	if (scache_size == 0)
-		r4k_blast_scache = (void *)no_sc_noop;
+		r4k_blast_scache = (void *)cache_noop;
 	else if (sc_lsize == 16)
 		r4k_blast_scache = blast_scache16;
 	else if (sc_lsize == 32)
@@ -508,7 +520,7 @@ static inline void local_r4k_flush_icache_range(void *args)
 	unsigned long end = fir_args->end;
 
 	if (!cpu_has_ic_fills_f_dc) {
-		if (end - start > dcache_size) {
+		if (end - start >= dcache_size) {
 			r4k_blast_dcache();
 		} else {
 			R4600_HIT_CACHEOP_WAR_IMPL;
@@ -683,10 +695,12 @@ static void local_r4k_flush_cache_sigtramp(void * arg)
 	unsigned long addr = (unsigned long) arg;
 
 	R4600_HIT_CACHEOP_WAR_IMPL;
-	protected_writeback_dcache_line(addr & ~(dc_lsize - 1));
+	if (dc_lsize)
+		protected_writeback_dcache_line(addr & ~(dc_lsize - 1));
 	if (!cpu_icache_snoops_remote_store && scache_size)
 		protected_writeback_scache_line(addr & ~(sc_lsize - 1));
-	protected_flush_icache_line(addr & ~(ic_lsize - 1));
+	if (ic_lsize)
+		protected_flush_icache_line(addr & ~(ic_lsize - 1));
 	if (MIPS4K_ICACHE_REFILL_WAR) {
 		__asm__ __volatile__ (
 			".set push\n\t"
@@ -973,8 +987,10 @@ static void __init probe_pcache(void)
 	c->icache.waysize = icache_size / c->icache.ways;
 	c->dcache.waysize = dcache_size / c->dcache.ways;
 
-	c->icache.sets = icache_size / (c->icache.linesz * c->icache.ways);
-	c->dcache.sets = dcache_size / (c->dcache.linesz * c->dcache.ways);
+	c->icache.sets = c->icache.linesz ?
+		icache_size / (c->icache.linesz * c->icache.ways) : 0;
+	c->dcache.sets = c->dcache.linesz ?
+		dcache_size / (c->dcache.linesz * c->dcache.ways) : 0;
 
 	/*
 	 * R10000 and R12000 P-caches are odd in a positive way.  They're 32kB
@@ -993,10 +1009,16 @@ static void __init probe_pcache(void)
 		break;
 	case CPU_24K:
 	case CPU_34K:
-		if (!(read_c0_config7() & (1 << 16)))
+	case CPU_74K:
+		if ((read_c0_config7() & (1 << 16))) {
+			/* effectively physically indexed dcache,
+			   thus no virtual aliases. */
+			c->dcache.flags |= MIPS_CACHE_PINDEX;
+			break;
+		}
 	default:
-			if (c->dcache.waysize > PAGE_SIZE)
-				c->dcache.flags |= MIPS_CACHE_ALIASES;
+		if (c->dcache.waysize > PAGE_SIZE)
+			c->dcache.flags |= MIPS_CACHE_ALIASES;
 	}
 
 	switch (c->cputype) {
@@ -1092,6 +1114,7 @@ static int __init probe_scache(void)
 
 extern int r5k_sc_init(void);
 extern int rm7k_sc_init(void);
+extern int mips_sc_init(void);
 
 static void __init setup_scache(void)
 {
@@ -1139,17 +1162,29 @@ static void __init setup_scache(void)
 		return;
 
 	default:
+		if (c->isa_level == MIPS_CPU_ISA_M32R1 ||
+		    c->isa_level == MIPS_CPU_ISA_M32R2 ||
+		    c->isa_level == MIPS_CPU_ISA_M64R1 ||
+		    c->isa_level == MIPS_CPU_ISA_M64R2) {
+#ifdef CONFIG_MIPS_CPU_SCACHE
+			if (mips_sc_init ()) {
+				scache_size = c->scache.ways * c->scache.sets * c->scache.linesz;
+				printk("MIPS secondary cache %ldkB, %s, linesize %d bytes.\n",
+				       scache_size >> 10,
+				       way_string[c->scache.ways], c->scache.linesz);
+			}
+#else
+			if (!(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
+				panic("Dunno how to handle MIPS32 / MIPS64 second level cache");
+#endif
+			return;
+		}
 		sc_present = 0;
 	}
 
 	if (!sc_present)
 		return;
 
-	if ((c->isa_level == MIPS_CPU_ISA_M32R1 ||
-	     c->isa_level == MIPS_CPU_ISA_M64R1) &&
-	    !(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
-		panic("Dunno how to handle MIPS32 / MIPS64 second level cache");
-
 	/* compute a couple of other cache variables */
 	c->scache.waysize = scache_size / c->scache.ways;
 
@@ -1246,10 +1281,12 @@ void __init r4k_cache_init(void)
 	 * This code supports virtually indexed processors and will be
 	 * unnecessarily inefficient on physically indexed processors.
 	 */
-	shm_align_mask = max_t( unsigned long,
-				c->dcache.sets * c->dcache.linesz - 1,
-				PAGE_SIZE - 1);
-
+	if (c->dcache.linesz)
+		shm_align_mask = max_t( unsigned long,
+					c->dcache.sets * c->dcache.linesz - 1,
+					PAGE_SIZE - 1);
+	else
+		shm_align_mask = PAGE_SIZE-1;
 	flush_cache_all		= r4k_flush_cache_all;
 	__flush_cache_all	= r4k___flush_cache_all;
 	flush_cache_mm		= r4k_flush_cache_mm;
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
new file mode 100644
index 0000000..42b5096
--- /dev/null
+++ b/arch/mips/mm/sc-mips.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2006 Chris Dearman (chris@mips.com),
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+
+#include <asm/mipsregs.h>
+#include <asm/bcache.h>
+#include <asm/cacheops.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/mmu_context.h>
+#include <asm/r4kcache.h>
+
+/*
+ * MIPS32/MIPS64 L2 cache handling
+ */
+
+/*
+ * Writeback and invalidate the secondary cache before DMA.
+ */
+static void mips_sc_wback_inv(unsigned long addr, unsigned long size)
+{
+	blast_scache_range(addr, addr + size);
+}
+
+/*
+ * Invalidate the secondary cache before DMA.
+ */
+static void mips_sc_inv(unsigned long addr, unsigned long size)
+{
+	blast_inv_scache_range(addr, addr + size);
+}
+
+static void mips_sc_enable(void)
+{
+	/* L2 cache is permanently enabled */
+}
+
+static void mips_sc_disable(void)
+{
+	/* L2 cache is permanently enabled */
+}
+
+static struct bcache_ops mips_sc_ops = {
+	.bc_enable = mips_sc_enable,
+	.bc_disable = mips_sc_disable,
+	.bc_wback_inv = mips_sc_wback_inv,
+	.bc_inv = mips_sc_inv
+};
+
+static inline int __init mips_sc_probe(void)
+{
+	struct cpuinfo_mips *c = &current_cpu_data;
+	unsigned int config1, config2;
+	unsigned int tmp;
+
+	/* Mark as not present until probe completed */
+	c->scache.flags |= MIPS_CACHE_NOT_PRESENT;
+
+	/* Ignore anything but MIPSxx processors */
+	if (c->isa_level != MIPS_CPU_ISA_M32R1 &&
+	    c->isa_level != MIPS_CPU_ISA_M32R2 &&
+	    c->isa_level != MIPS_CPU_ISA_M64R1 &&
+	    c->isa_level != MIPS_CPU_ISA_M64R2)
+		return 0;
+
+	/* Does this MIPS32/MIPS64 CPU have a config2 register? */
+	config1 = read_c0_config1();
+	if (!(config1 & MIPS_CONF_M))
+		return 0;
+
+	config2 = read_c0_config2();
+	tmp = (config2 >> 4) & 0x0f;
+	if (0 < tmp && tmp <= 7)
+		c->scache.linesz = 2 << tmp;
+	else
+		return 0;
+
+	tmp = (config2 >> 8) & 0x0f;
+	if (0 <= tmp && tmp <= 7)
+		c->scache.sets = 64 << tmp;
+	else
+		return 0;
+
+	tmp = (config2 >> 0) & 0x0f;
+	if (0 <= tmp && tmp <= 7)
+		c->scache.ways = tmp + 1;
+	else
+		return 0;
+
+	c->scache.waysize = c->scache.sets * c->scache.linesz;
+	c->scache.waybit = __ffs(c->scache.waysize);
+
+	c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
+
+	return 1;
+}
+
+int __init mips_sc_init(void)
+{
+	int found = mips_sc_probe ();
+	if (found) {
+		mips_sc_enable();
+		bcops = &mips_sc_ops;
+	}
+	return found;
+}
+
diff --git a/arch/mips/momentum/jaguar_atx/setup.c b/arch/mips/momentum/jaguar_atx/setup.c
index df14855..d041948 100644
--- a/arch/mips/momentum/jaguar_atx/setup.c
+++ b/arch/mips/momentum/jaguar_atx/setup.c
@@ -370,8 +370,8 @@ void __init plat_mem_setup(void)
 	pm_power_off = momenco_jaguar_power_off;
 
 	/*
-	 * initrd_start = (ulong)jaguar_initrd_start;
-	 * initrd_end = (ulong)jaguar_initrd_start + (ulong)jaguar_initrd_size;
+	 * initrd_start = (unsigned long)jaguar_initrd_start;
+	 * initrd_end = (unsigned long)jaguar_initrd_start + (ulong)jaguar_initrd_size;
 	 * initrd_below_start_ok = 1;
 	 */
 
diff --git a/arch/mips/momentum/ocelot_c/setup.c b/arch/mips/momentum/ocelot_c/setup.c
index 257e1d1..a0ee006 100644
--- a/arch/mips/momentum/ocelot_c/setup.c
+++ b/arch/mips/momentum/ocelot_c/setup.c
@@ -242,8 +242,8 @@ void __init plat_mem_setup(void)
 	pm_power_off = momenco_ocelot_power_off;
 
 	/*
-	 * initrd_start = (ulong)ocelot_initrd_start;
-	 * initrd_end = (ulong)ocelot_initrd_start + (ulong)ocelot_initrd_size;
+	 * initrd_start = (unsigned long)ocelot_initrd_start;
+	 * initrd_end = (unsigned long)ocelot_initrd_start + (ulong)ocelot_initrd_size;
 	 * initrd_below_start_ok = 1;
 	 */
 
diff --git a/arch/mips/momentum/ocelot_g/setup.c b/arch/mips/momentum/ocelot_g/setup.c
index 72143ab..39da02b 100644
--- a/arch/mips/momentum/ocelot_g/setup.c
+++ b/arch/mips/momentum/ocelot_g/setup.c
@@ -174,8 +174,8 @@ void __init plat_mem_setup(void)
 	pm_power_off = momenco_ocelot_power_off;
 
 	/*
-	 * initrd_start = (ulong)ocelot_initrd_start;
-	 * initrd_end = (ulong)ocelot_initrd_start + (ulong)ocelot_initrd_size;
+	 * initrd_start = (unsigned long)ocelot_initrd_start;
+	 * initrd_end = (unsigned long)ocelot_initrd_start + (ulong)ocelot_initrd_size;
 	 * initrd_below_start_ok = 1;
 	 */
 
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index f26a00e..a09c5f9 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -12,16 +12,70 @@
 
 #include "op_impl.h"
 
-#define M_PERFCTL_EXL			(1UL    <<  0)
-#define M_PERFCTL_KERNEL		(1UL    <<  1)
-#define M_PERFCTL_SUPERVISOR		(1UL    <<  2)
-#define M_PERFCTL_USER			(1UL    <<  3)
-#define M_PERFCTL_INTERRUPT_ENABLE	(1UL    <<  4)
-#define M_PERFCTL_EVENT(event)		((event) << 5)
-#define M_PERFCTL_WIDE			(1UL    << 30)
-#define M_PERFCTL_MORE			(1UL    << 31)
+#define M_PERFCTL_EXL			(1UL      <<  0)
+#define M_PERFCTL_KERNEL		(1UL      <<  1)
+#define M_PERFCTL_SUPERVISOR		(1UL      <<  2)
+#define M_PERFCTL_USER			(1UL      <<  3)
+#define M_PERFCTL_INTERRUPT_ENABLE	(1UL      <<  4)
+#define M_PERFCTL_EVENT(event)		((event)  << 5)
+#define M_PERFCTL_VPEID(vpe)		((vpe)    << 16)
+#define M_PERFCTL_MT_EN(filter)		((filter) << 20)
+#define    M_TC_EN_ALL			M_PERFCTL_MT_EN(0)
+#define    M_TC_EN_VPE			M_PERFCTL_MT_EN(1)
+#define    M_TC_EN_TC			M_PERFCTL_MT_EN(2)
+#define M_PERFCTL_TCID(tcid)		((tcid)   << 22)
+#define M_PERFCTL_WIDE			(1UL      << 30)
+#define M_PERFCTL_MORE			(1UL      << 31)
+
+#define M_COUNTER_OVERFLOW		(1UL      << 31)
+
+#ifdef CONFIG_MIPS_MT_SMP
+#define WHAT	(M_TC_EN_VPE | M_PERFCTL_VPEID(smp_processor_id()))
+#else
+#define WHAT	0
+#endif
 
-#define M_COUNTER_OVERFLOW		(1UL    << 31)
+#define __define_perf_accessors(r, n, np)				\
+									\
+static inline unsigned int r_c0_ ## r ## n(void)			\
+{									\
+	unsigned int cpu = smp_processor_id();				\
+									\
+	switch (cpu) {							\
+	case 0:								\
+		return read_c0_ ## r ## n();				\
+	case 1:								\
+		return read_c0_ ## r ## np();				\
+	default:							\
+		BUG();							\
+	}								\
+}									\
+									\
+static inline void w_c0_ ## r ## n(unsigned int value)			\
+{									\
+	unsigned int cpu = smp_processor_id();				\
+									\
+	switch (cpu) {							\
+	case 0:								\
+		write_c0_ ## r ## n(value);				\
+		return;							\
+	case 1:								\
+		write_c0_ ## r ## np(value);				\
+		return;							\
+	default:							\
+		BUG();							\
+	}								\
+}									\
+
+__define_perf_accessors(perfcntr, 0, 2)
+__define_perf_accessors(perfcntr, 1, 3)
+__define_perf_accessors(perfcntr, 2, 2)
+__define_perf_accessors(perfcntr, 3, 2)
+
+__define_perf_accessors(perfctrl, 0, 2)
+__define_perf_accessors(perfctrl, 1, 3)
+__define_perf_accessors(perfctrl, 2, 2)
+__define_perf_accessors(perfctrl, 3, 2)
 
 struct op_mips_model op_model_mipsxx_ops;
 
@@ -66,17 +120,17 @@ static void mipsxx_cpu_setup (void *args)
 
 	switch (counters) {
 	case 4:
-		write_c0_perfctrl3(0);
-		write_c0_perfcntr3(reg.counter[3]);
+		w_c0_perfctrl3(0);
+		w_c0_perfcntr3(reg.counter[3]);
 	case 3:
-		write_c0_perfctrl2(0);
-		write_c0_perfcntr2(reg.counter[2]);
+		w_c0_perfctrl2(0);
+		w_c0_perfcntr2(reg.counter[2]);
 	case 2:
-		write_c0_perfctrl1(0);
-		write_c0_perfcntr1(reg.counter[1]);
+		w_c0_perfctrl1(0);
+		w_c0_perfcntr1(reg.counter[1]);
 	case 1:
-		write_c0_perfctrl0(0);
-		write_c0_perfcntr0(reg.counter[0]);
+		w_c0_perfctrl0(0);
+		w_c0_perfcntr0(reg.counter[0]);
 	}
 }
 
@@ -87,13 +141,13 @@ static void mipsxx_cpu_start(void *args)
 
 	switch (counters) {
 	case 4:
-		write_c0_perfctrl3(reg.control[3]);
+		w_c0_perfctrl3(WHAT | reg.control[3]);
 	case 3:
-		write_c0_perfctrl2(reg.control[2]);
+		w_c0_perfctrl2(WHAT | reg.control[2]);
 	case 2:
-		write_c0_perfctrl1(reg.control[1]);
+		w_c0_perfctrl1(WHAT | reg.control[1]);
 	case 1:
-		write_c0_perfctrl0(reg.control[0]);
+		w_c0_perfctrl0(WHAT | reg.control[0]);
 	}
 }
 
@@ -104,13 +158,13 @@ static void mipsxx_cpu_stop(void *args)
 
 	switch (counters) {
 	case 4:
-		write_c0_perfctrl3(0);
+		w_c0_perfctrl3(0);
 	case 3:
-		write_c0_perfctrl2(0);
+		w_c0_perfctrl2(0);
 	case 2:
-		write_c0_perfctrl1(0);
+		w_c0_perfctrl1(0);
 	case 1:
-		write_c0_perfctrl0(0);
+		w_c0_perfctrl0(0);
 	}
 }
 
@@ -124,12 +178,12 @@ static int mipsxx_perfcount_handler(struct pt_regs *regs)
 	switch (counters) {
 #define HANDLE_COUNTER(n)						\
 	case n + 1:							\
-		control = read_c0_perfctrl ## n();			\
-		counter = read_c0_perfcntr ## n();			\
+		control = r_c0_perfctrl ## n();				\
+		counter = r_c0_perfcntr ## n();				\
 		if ((control & M_PERFCTL_INTERRUPT_ENABLE) &&		\
 		    (counter & M_COUNTER_OVERFLOW)) {			\
 			oprofile_add_sample(regs, n);			\
-			write_c0_perfcntr ## n(reg.counter[n]);		\
+			w_c0_perfcntr ## n(reg.counter[n]);		\
 			handled = 1;					\
 		}
 	HANDLE_COUNTER(3)
@@ -143,35 +197,47 @@ static int mipsxx_perfcount_handler(struct pt_regs *regs)
 
 #define M_CONFIG1_PC	(1 << 4)
 
-static inline int n_counters(void)
+static inline int __n_counters(void)
 {
 	if (!(read_c0_config1() & M_CONFIG1_PC))
 		return 0;
-	if (!(read_c0_perfctrl0() & M_PERFCTL_MORE))
+	if (!(r_c0_perfctrl0() & M_PERFCTL_MORE))
 		return 1;
-	if (!(read_c0_perfctrl1() & M_PERFCTL_MORE))
+	if (!(r_c0_perfctrl1() & M_PERFCTL_MORE))
 		return 2;
-	if (!(read_c0_perfctrl2() & M_PERFCTL_MORE))
+	if (!(r_c0_perfctrl2() & M_PERFCTL_MORE))
 		return 3;
 
 	return 4;
 }
 
+static inline int n_counters(void)
+{
+	int counters = __n_counters();
+
+#ifndef CONFIG_SMP
+	if (current_cpu_data.cputype == CPU_34K)
+		return counters >> 1;
+#endif
+
+	return counters;
+}
+
 static inline void reset_counters(int counters)
 {
 	switch (counters) {
 	case 4:
-		write_c0_perfctrl3(0);
-		write_c0_perfcntr3(0);
+		w_c0_perfctrl3(0);
+		w_c0_perfcntr3(0);
 	case 3:
-		write_c0_perfctrl2(0);
-		write_c0_perfcntr2(0);
+		w_c0_perfctrl2(0);
+		w_c0_perfcntr2(0);
 	case 2:
-		write_c0_perfctrl1(0);
-		write_c0_perfcntr1(0);
+		w_c0_perfctrl1(0);
+		w_c0_perfcntr1(0);
 	case 1:
-		write_c0_perfctrl0(0);
-		write_c0_perfcntr0(0);
+		w_c0_perfctrl0(0);
+		w_c0_perfcntr0(0);
 	}
 }
 
@@ -201,7 +267,6 @@ static int __init mipsxx_init(void)
 		op_model_mipsxx_ops.cpu_type = "mips/25K";
 		break;
 
-#ifndef CONFIG_SMP
 	case CPU_34K:
 		op_model_mipsxx_ops.cpu_type = "mips/34K";
 		break;
@@ -209,7 +274,6 @@ static int __init mipsxx_init(void)
 	case CPU_74K:
 		op_model_mipsxx_ops.cpu_type = "mips/74K";
 		break;
-#endif
 
 	case CPU_5KC:
 		op_model_mipsxx_ops.cpu_type = "mips/5K";
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index 465778c..35d5927 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_MARKEINS)		+= ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o
 #
 # These are still pretty much in the old state, watch, go blind.
 #
-obj-$(CONFIG_BASLER_EXCITE)	= ops-titan.o pci-excite.o fixup-excite.o
+obj-$(CONFIG_BASLER_EXCITE)	+= ops-titan.o pci-excite.o fixup-excite.o
 obj-$(CONFIG_DDB5477)		+= fixup-ddb5477.o pci-ddb5477.o ops-ddb5477.o
 obj-$(CONFIG_LASAT)		+= pci-lasat.o
 obj-$(CONFIG_MIPS_ATLAS)	+= fixup-atlas.o
diff --git a/arch/mips/pci/ops-tx4927.c b/arch/mips/pci/ops-tx4927.c
index 7688b77..150419c 100644
--- a/arch/mips/pci/ops-tx4927.c
+++ b/arch/mips/pci/ops-tx4927.c
@@ -119,7 +119,7 @@ static int tx4927_pcibios_read_config(struct pci_bus *bus, unsigned int devfn, i
 
 	switch (size) {
 	case 1:
-		*val = *(volatile u8 *) ((ulong) & tx4927_pcicptr->
+		*val = *(volatile u8 *) ((unsigned long) & tx4927_pcicptr->
                               g2pcfgdata |
 #ifdef __LITTLE_ENDIAN
 						(where & 3));
@@ -128,7 +128,7 @@ static int tx4927_pcibios_read_config(struct pci_bus *bus, unsigned int devfn, i
 #endif
 		break;
 	case 2:
-		*val = *(volatile u16 *) ((ulong) & tx4927_pcicptr->
+		*val = *(volatile u16 *) ((unsigned long) & tx4927_pcicptr->
                                g2pcfgdata |
 #ifdef __LITTLE_ENDIAN
 						(where & 3));
@@ -168,7 +168,7 @@ static int tx4927_pcibios_write_config(struct pci_bus *bus, unsigned int devfn,
 
 	switch (size) {
 	case 1:
-		 *(volatile u8 *) ((ulong) & tx4927_pcicptr->
+		 *(volatile u8 *) ((unsigned long) & tx4927_pcicptr->
                           g2pcfgdata |
 #ifdef __LITTLE_ENDIAN
 					(where & 3)) = val;
@@ -178,7 +178,7 @@ static int tx4927_pcibios_write_config(struct pci_bus *bus, unsigned int devfn,
 		break;
 
 	case 2:
-		*(volatile u16 *) ((ulong) & tx4927_pcicptr->
+		*(volatile u16 *) ((unsigned long) & tx4927_pcicptr->
                            g2pcfgdata |
 #ifdef __LITTLE_ENDIAN
 					(where & 3)) = val;
diff --git a/arch/mips/pci/ops-tx4938.c b/arch/mips/pci/ops-tx4938.c
index 0ff0834..4450070 100644
--- a/arch/mips/pci/ops-tx4938.c
+++ b/arch/mips/pci/ops-tx4938.c
@@ -106,7 +106,7 @@ static int tx4938_pcibios_read_config(struct pci_bus *bus, unsigned int devfn,
 
 	switch (size) {
 	case 1:
-		*val = *(volatile u8 *) ((ulong) & tx4938_pcicptr->g2pcfgdata |
+		*val = *(volatile u8 *) ((unsigned long) & tx4938_pcicptr->g2pcfgdata |
 #ifdef __BIG_ENDIAN
 			      ((where & 3) ^ 3));
 #else
@@ -114,7 +114,7 @@ static int tx4938_pcibios_read_config(struct pci_bus *bus, unsigned int devfn,
 #endif
 		break;
 	case 2:
-		*val = *(volatile u16 *) ((ulong) & tx4938_pcicptr->g2pcfgdata |
+		*val = *(volatile u16 *) ((unsigned long) & tx4938_pcicptr->g2pcfgdata |
 #ifdef __BIG_ENDIAN
 				((where & 3) ^ 2));
 #else
@@ -154,7 +154,7 @@ static int tx4938_pcibios_write_config(struct pci_bus *bus, unsigned int devfn,
 
 	switch (size) {
 	case 1:
-		*(volatile u8 *) ((ulong) & tx4938_pcicptr->g2pcfgdata |
+		*(volatile u8 *) ((unsigned long) & tx4938_pcicptr->g2pcfgdata |
 #ifdef __BIG_ENDIAN
 			  ((where & 3) ^ 3)) = val;
 #else
@@ -162,7 +162,7 @@ static int tx4938_pcibios_write_config(struct pci_bus *bus, unsigned int devfn,
 #endif
 		break;
 	case 2:
-		*(volatile u16 *) ((ulong) & tx4938_pcicptr->g2pcfgdata |
+		*(volatile u16 *) ((unsigned long) & tx4938_pcicptr->g2pcfgdata |
 #ifdef __BIG_ENDIAN
 			((where & 0x3) ^ 0x2)) = val;
 #else
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig
index f14ef38..5e960ae 100644
--- a/arch/mips/sgi-ip27/Kconfig
+++ b/arch/mips/sgi-ip27/Kconfig
@@ -33,12 +33,13 @@ config MAPPED_KERNEL
 	depends on SGI_IP27
 	help
 	  Change the way a Linux kernel is loaded into memory on a MIPS64
-	  machine.  This is required in order to support text replication and
+	  machine.  This is required in order to support text replication on
 	  NUMA.  If you need to understand it, read the source code.
 
 config REPLICATE_KTEXT
 	bool "Kernel text replication support"
 	depends on SGI_IP27
+	select MAPPED_KERNEL
 	help
 	  Say Y here to enable replicating the kernel text across multiple
 	  nodes in a NUMA cluster.  This trades memory for speed.
diff --git a/arch/mips/sgi-ip27/Makefile b/arch/mips/sgi-ip27/Makefile
index 686ba14..a457263 100644
--- a/arch/mips/sgi-ip27/Makefile
+++ b/arch/mips/sgi-ip27/Makefile
@@ -2,11 +2,12 @@
 # Makefile for the IP27 specific kernel interface routines under Linux.
 #
 
-obj-y	:= ip27-berr.o ip27-console.o ip27-irq.o ip27-init.o \
-	   ip27-klconfig.o ip27-klnuma.o ip27-memory.o ip27-nmi.o ip27-reset.o \
-	   ip27-timer.o ip27-hubio.o ip27-xtalk.o
+obj-y	:= ip27-berr.o ip27-irq.o ip27-init.o ip27-klconfig.o ip27-klnuma.o \
+	   ip27-memory.o ip27-nmi.o ip27-reset.o ip27-timer.o ip27-hubio.o \
+	   ip27-xtalk.o
 
-obj-$(CONFIG_KGDB)	+= ip27-dbgio.o
-obj-$(CONFIG_SMP)	+= ip27-smp.o
+obj-$(CONFIG_EARLY_PRINTK)	+= ip27-console.o
+obj-$(CONFIG_KGDB)		+= ip27-dbgio.o
+obj-$(CONFIG_SMP)		+= ip27-smp.o
 
 EXTRA_AFLAGS := $(CFLAGS)
diff --git a/arch/mips/sgi-ip27/ip27-console.c b/arch/mips/sgi-ip27/ip27-console.c
index 3e1ac29..14211e3 100644
--- a/arch/mips/sgi-ip27/ip27-console.c
+++ b/arch/mips/sgi-ip27/ip27-console.c
@@ -46,33 +46,29 @@ void prom_putchar(char c)
 	uart->iu_thr = c;
 }
 
-char __init prom_getchar(void)
+static void ioc3_console_write(struct console *con, const char *s, unsigned n)
 {
-	return 0;
+	while (n-- && *s) {
+		if (*s == '\n')
+			prom_putchar('\r');
+		prom_putchar(*s);
+		s++;
+	}
 }
 
-static void inline ioc3_console_probe(void)
-{
-	struct uart_port up;
-
-	/*
-	 * Register to interrupt zero because we share the interrupt with
-	 * the serial driver which we don't properly support yet.
-	 */
-	memset(&up, 0, sizeof(up));
-	up.membase	= (unsigned char *) console_uart();
-	up.irq		= 0;
-	up.uartclk	= IOC3_CLK;
-	up.regshift	= 0;
-	up.iotype	= UPIO_MEM;
-	up.flags	= IOC3_FLAGS;
-	up.line		= 0;
+static struct console ioc3_console = {
+	.name	= "ioc3",
+	.write	= ioc3_console_write,
+	.flags	= CON_PRINTBUFFER | CON_BOOT,
+	.index	= -1
+};
 
-	if (early_serial_setup(&up))
-		printk(KERN_ERR "Early serial init of port 0 failed\n");
+__init void ip27_setup_console(void)
+{
+	register_console(&ioc3_console);
 }
 
-__init void ip27_setup_console(void)
+void __init disable_early_printk(void)
 {
-	ioc3_console_probe();
+	unregister_console(&ioc3_console);
 }
diff --git a/arch/mips/sibyte/Kconfig b/arch/mips/sibyte/Kconfig
index 816aee7..ec7a2cf 100644
--- a/arch/mips/sibyte/Kconfig
+++ b/arch/mips/sibyte/Kconfig
@@ -3,6 +3,7 @@ config SIBYTE_SB1250
 	select HW_HAS_PCI
 	select SIBYTE_HAS_LDT
 	select SIBYTE_SB1xxx_SOC
+	select SYS_SUPPORTS_SMP
 
 config SIBYTE_BCM1120
 	bool
@@ -30,11 +31,13 @@ config SIBYTE_BCM1x80
 	bool
 	select HW_HAS_PCI
 	select SIBYTE_SB1xxx_SOC
+	select SYS_SUPPORTS_SMP
 
 config SIBYTE_BCM1x55
 	bool
 	select HW_HAS_PCI
 	select SIBYTE_SB1xxx_SOC
+	select SYS_SUPPORTS_SMP
 
 config SIBYTE_SB1xxx_SOC
 	bool