FreeBSD/mips port. The FreeBSD/mips port targets mips32, mips64,

mips32r2 and mips64r2 (and close relatives) processors.  There
presently is support for ADMtek ADM5120, A mips 4Kc in a malta board,
the RB533 routerboard (based on IDT RC32434) and some preliminary
support for sibtye/broadcom designs.  Other hardware support will be
forthcomcing.

This port boots multiuser under gxemul emulating the malta board and
also bootstraps on the hardware whose support is forthcoming...

Oleksandr Tymoshenko, Wojciech Koszek, Warner Losh, Olivier Houchard,
Randall Stewert and others that have contributed to the mips2 and/or
mips2-jnpr perforce branches.  Juniper contirbuted a generic mips port
late in the life cycle of the misp2 branch.  Warner Losh merged the
mips2 and Juniper code bases, and others list above have worked for
the past several months to get to multiuser.

In addition, the mips2 work owe a debt to the trail blazing efforts of
the original mips branch in perforce done by Juli Mallett.

10 files changed, 411 insertions, 0 deletions

diff --git a/sys/mips/compile/.cvsignore b/sys/mips/compile/.cvsignore
new file mode 100644
index 0000000..232298e
--- /dev/null
+++ b/sys/mips/compile/.cvsignore
@@ -0,0 +1 @@
+[A-Za-z0-9]*
diff --git a/sys/mips/conf/ADM5120 b/sys/mips/conf/ADM5120
new file mode 100644
index 0000000..7e22b87
--- /dev/null
+++ b/sys/mips/conf/ADM5120
@@ -0,0 +1,71 @@
+# QEMU -- Generic kernel configuration file for FreeBSD/mips
+#
+# For more information on this file, please read the handbook section on
+# Kernel Configuration Files:
+#
+#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
+#
+# The handbook is also available locally in /usr/share/doc/handbook
+# if you've installed the doc distribution, otherwise always see the
+# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
+# latest information.
+#
+# An exhaustive list of options and more detailed explanations of the
+# device lines is also present in the ../../conf/NOTES and NOTES files. 
+# If you are in doubt as to the purpose or necessity of a line, check first 
+# in NOTES.
+#
+# $FreeBSD$
+
+machine		mips
+ident		ADM5120
+
+#makeoptions	ARCH_FLAGS=-march=mips32
+makeoptions	MIPS_LITTLE_ENDIAN=defined
+
+# Don't build any modules yet.
+makeoptions	MODULES_OVERRIDE=""
+
+options		KERNVIRTADDR=0x80100000
+include		"../mips32/adm5120/std.adm5120"
+
+hints		"ADM5120.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+
+options		DDB
+options		KDB
+
+options		SCHED_4BSD		#4BSD scheduler
+options		INET			#InterNETworking
+options		NFSCLIENT		#Network Filesystem Client
+options		NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+options		PSEUDOFS		#Pseudo-filesystem framework
+# options		_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+
+options BOOTP
+options BOOTP_NFSROOT
+options BOOTP_NFSV3
+options BOOTP_WIRED_TO=admsw0
+options BOOTP_COMPAT
+
+# options         FFS                     #Berkeley Fast Filesystem
+# options         SOFTUPDATES             #Enable FFS soft updates support
+# options         UFS_ACL                 #Support for access control lists
+# options         UFS_DIRHASH             #Improve performance on big directories
+options		ROOTDEVNAME=\"nfs:10.0.0.1:/mnt/bsd\"
+
+
+# Debugging for use in -current
+options		INVARIANTS		#Enable calls of extra sanity checking
+options		INVARIANT_SUPPORT	#Extra sanity checks of internal structures, required by INVARIANTS
+#options		WITNESS			#Enable checks to detect deadlocks and cycles
+#options		WITNESS_SKIPSPIN	#Don't run witness on spinlocks for speed
+
+device		genclock
+device		loop
+device		ether
+device		uart
+# device		md
+# device		mem
+# device		uart_ns8250
diff --git a/sys/mips/conf/ADM5120.hints b/sys/mips/conf/ADM5120.hints
new file mode 100644
index 0000000..1c8af41
--- /dev/null
+++ b/sys/mips/conf/ADM5120.hints
@@ -0,0 +1,24 @@
+# $FreeBSD$
+# device.hints
+hint.obio.0.at="nexus0"
+hint.obio.0.maddr=0x0
+hint.obio.0.msize=0x1fffffff
+
+# host-to-pci bridge
+hint.pcib.0.at="obio0"
+hint.pcib.0.maddr=0x11400000
+hint.pcib.0.msize=0x100000
+hint.pcib.0.io=0x11500000
+hint.pcib.0.iosize=0x100000
+
+# on-board switch engine
+hint.admsw.0.at="obio0"
+hint.admsw.0.maddr=0x12000000
+hint.admsw.0.msize=0x200000
+hint.admsw.0.irq=9
+
+# uart0
+hint.uart.0.at="obio0"
+hint.uart.0.maddr=0x12600000
+hint.uart.0.msize=0x200000
+hint.uart.0.irq=1
diff --git a/sys/mips/conf/IDT b/sys/mips/conf/IDT
new file mode 100644
index 0000000..8b63260
--- /dev/null
+++ b/sys/mips/conf/IDT
@@ -0,0 +1,54 @@
+# $FreeBSD$
+
+machine		mips
+cpu		CPU_MIPS4KC
+ident		RB532
+
+# Don't build any modules yet.
+makeoptions	MODULES_OVERRIDE=""
+
+include		"../mips32/idt/std.idt"
+hints		"IDT.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+
+options		DDB
+options		KDB
+
+options		SCHED_4BSD		#4BSD scheduler
+options		INET			#InterNETworking
+options		NFSCLIENT		#Network Filesystem Client
+options		NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+options		PSEUDOFS		#Pseudo-filesystem framework
+
+options		BOOTP
+options		BOOTP_NFSROOT
+options		BOOTP_NFSV3
+options		BOOTP_WIRED_TO=kr0
+options		BOOTP_COMPAT
+
+# Debugging for use in -current
+options		INVARIANTS		#Enable calls of extra sanity checking
+options		INVARIANT_SUPPORT	#Extra sanity checks of internal structures, required by INVARIANTS
+
+device		genclock
+device		loop
+device		pci
+device		ether
+device		miibus
+device		vr
+device		kr
+device		uart
+device		uart_ns8250
+device		md
+
+# Wireless NIC cards
+device		wlan		# 802.11 support
+device		wlan_wep	# 802.11 WEP support
+device		wlan_tkip	# 802.11 TKIP support
+device		wlan_scan_ap	#802.11 AP mode scanning
+device		wlan_scan_sta	#802.11 STA mode scanning
+device		ath		# Atheros pci/cardbus NIC's
+device		ath_hal		# Atheros HAL (Hardware Access Layer)
+device		ath_rate_sample	# SampleRate tx rate control for ath
+options		ATH_DEBUG
diff --git a/sys/mips/conf/IDT.hints b/sys/mips/conf/IDT.hints
new file mode 100644
index 0000000..eae6fbb
--- /dev/null
+++ b/sys/mips/conf/IDT.hints
@@ -0,0 +1,22 @@
+# $FreeBSD$
+# device.hints
+hint.obio.0.at="nexus0"
+hint.obio.0.maddr=0x0
+hint.obio.0.msize=0x1fffffff
+
+# host-to-pci bridge
+hint.pcib.0.at="obio0"
+# hint.pcib.0.maddr=0x11400000
+# hint.pcib.0.msize=0x100000
+# hint.pcib.0.io=0x11500000
+# hint.pcib.0.iosize=0x100000
+
+# uart0
+hint.uart.0.at="obio0"
+hint.uart.0.maddr=0x18058000
+hint.uart.0.msize=0x1C
+hint.uart.0.irq=104
+
+hint.kr.0.at="obio0"
+hint.kr.0.maddr=0x18060000
+hint.kr.0.msize=0x10000
diff --git a/sys/mips/conf/MALTA b/sys/mips/conf/MALTA
new file mode 100644
index 0000000..2f3e39a
--- /dev/null
+++ b/sys/mips/conf/MALTA
@@ -0,0 +1,72 @@
+# QEMU -- Generic kernel configuration file for FreeBSD/mips
+#
+# For more information on this file, please read the handbook section on
+# Kernel Configuration Files:
+#
+#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
+#
+# The handbook is also available locally in /usr/share/doc/handbook
+# if you've installed the doc distribution, otherwise always see the
+# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
+# latest information.
+#
+# An exhaustive list of options and more detailed explanations of the
+# device lines is also present in the ../../conf/NOTES and NOTES files. 
+# If you are in doubt as to the purpose or necessity of a line, check first 
+# in NOTES.
+#
+# $FreeBSD$
+
+machine		mips
+ident		MALTA
+
+#makeoptions	ARCH_FLAGS=-march=mips32
+makeoptions	MIPS_LITTLE_ENDIAN=defined
+
+options		YAMON
+
+# Don't build any modules yet.
+makeoptions	MODULES_OVERRIDE=""
+
+options		KERNVIRTADDR=0x80100000
+options		TICK_USE_YAMON_FREQ=defined
+#options		TICK_USE_MALTA_RTC=defined
+
+include		"../mips32/malta/std.malta"
+
+hints		"MALTA.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+
+options		DDB
+options		KDB
+
+options		SCHED_4BSD		#4BSD scheduler
+options		INET			#InterNETworking
+options		NFSCLIENT		#Network Filesystem Client
+options		NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+options		PSEUDOFS		#Pseudo-filesystem framework
+options		_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+
+options         FFS                     #Berkeley Fast Filesystem
+options         SOFTUPDATES             #Enable FFS soft updates support
+options         UFS_ACL                 #Support for access control lists
+options         UFS_DIRHASH             #Improve performance on big directories
+options		ROOTDEVNAME=\"ufs:ad0s1a\"
+
+
+# Debugging for use in -current
+options		INVARIANTS		#Enable calls of extra sanity checking
+options		INVARIANT_SUPPORT	#Extra sanity checks of internal structures, required by INVARIANTS
+#options		WITNESS			#Enable checks to detect deadlocks and cycles
+#options		WITNESS_SKIPSPIN	#Don't run witness on spinlocks for speed
+
+device		genclock
+device		loop
+device		ether
+device		le
+device		miibus
+device		md
+device		mem
+device		uart
+device		uart_ns8250
diff --git a/sys/mips/conf/MALTA.hints b/sys/mips/conf/MALTA.hints
new file mode 100644
index 0000000..72dd107
--- /dev/null
+++ b/sys/mips/conf/MALTA.hints
@@ -0,0 +1,5 @@
+# $FreeBSD$
+# device.hints
+# hint.uart.0.at="nexus"
+# hint.uart.0.maddr="0x180003f8"
+# hint.uart.0.flags="0x90"
diff --git a/sys/mips/conf/QEMU b/sys/mips/conf/QEMU
new file mode 100644
index 0000000..1bfad14
--- /dev/null
+++ b/sys/mips/conf/QEMU
@@ -0,0 +1,58 @@
+# QEMU -- Generic kernel configuration file for FreeBSD/mips
+#
+# For more information on this file, please read the handbook section on
+# Kernel Configuration Files:
+#
+#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
+#
+# The handbook is also available locally in /usr/share/doc/handbook
+# if you've installed the doc distribution, otherwise always see the
+# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
+# latest information.
+#
+# An exhaustive list of options and more detailed explanations of the
+# device lines is also present in the ../../conf/NOTES and NOTES files. 
+# If you are in doubt as to the purpose or necessity of a line, check first 
+# in NOTES.
+#
+# $FreeBSD$
+
+machine		mips
+cpu		CPU_MIPS32
+ident		QEMU
+
+# XXX: These two options must be defined in MIPS kernel configs.
+makeoptions	MIPS_LITTLE_ENDIAN=defined
+makeoptions	ARCH_FLAGS=-march=mips32
+
+# Don't build any modules yet.
+makeoptions	MODULES_OVERRIDE=""
+
+options		KERNVIRTADDR=0x80100000
+include		"../adm5120/std.adm5120"
+
+#hints		"GENERIC.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+
+options		DDB
+options		KDB
+
+options		SCHED_4BSD		#4BSD scheduler
+options		INET			#InterNETworking
+options		NFSCLIENT		#Network Filesystem Client
+options		NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+options		PSEUDOFS		#Pseudo-filesystem framework
+options		_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+
+# Debugging for use in -current
+#options		INVARIANTS		#Enable calls of extra sanity checking
+#options		INVARIANT_SUPPORT	#Extra sanity checks of internal structures, required by INVARIANTS
+#options		WITNESS			#Enable checks to detect deadlocks and cycles
+#options		WITNESS_SKIPSPIN	#Don't run witness on spinlocks for speed
+
+device		genclock
+device		loop
+device		ether
+device		mem
+device		md
diff --git a/sys/mips/conf/SENTRY5 b/sys/mips/conf/SENTRY5
new file mode 100644
index 0000000..0db4cf7
--- /dev/null
+++ b/sys/mips/conf/SENTRY5
@@ -0,0 +1,99 @@
+#
+# $FreeBSD$
+# $P4: //depot/projects/mips2-jnpr/src/sys/mips/conf/SENTRY5#2 $
+#
+# The Broadcom Sentry5 series of processors and boards is very commonly
+# used in COTS hardware including the Netgear WGT634U.
+#
+# Some tweaks are needed for use with this platform:
+#
+# * CFE firmware's ELF loader expects an ELF kernel which is linked so as
+#   not to contain offsets in PT_LOAD which point behind the actual offset
+#   of that PT header. FreeBSD normally links the first PT_LOAD header to
+#   begin at offset 0.
+#
+# * Broadcom's support package for the internal bus, the Sonics
+#   SiliconBackplane, needs to be integrated to detect and probe hardware
+#   correctly.
+#
+# * The clock needs to be calibrated correctly, so that DELAY() may work.
+#   One problem with this is that the low-level printf() routine calls DELAY(),
+#   which currently causes divide-by-zero trap
+#
+# * The Broadcom CPUs have no FPU. Attempting to detect one by reading CP1's
+#   status register causes an unhandled boot-time exception. An FPU emulator
+#   will be necessary to support multi-user boot.
+#
+
+machine		mips
+ident		SENTRY5
+cpu		CPU_MIPS4KC
+options		CPU_NOFPU
+options 	ISA_MIPS32
+options		CPU_SENTRY5			# XXX should this be a
+						# sub-cpu option?
+
+# XXX only siba should be hardwired for now; we will use
+# bus enumeration there
+files		"../mips32/sentry5/files.sentry5"
+hints		"SENTRY5.hints"
+
+# sentry5 normally ships with cfe firmware; use the console for now
+options		CFE
+options		CFE_CONSOLE
+options		ALT_BREAK_TO_DEBUGGER
+
+# cfe loader expects kernel at 0x80001000 for mips32 w/o backwards
+# offsets in the linked elf image (see ldscript hack)
+# XXX can we conditionalize the linker stuff on options CFE?
+options		KERNVIRTADDR=0x80001000
+
+#makeoptions	ARCH_FLAGS=-march=mips32
+makeoptions	MIPS_LITTLE_ENDIAN=defined
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+makeoptions	MODULES_OVERRIDE=""
+
+options		DDB
+options		KDB
+
+options		SCHED_4BSD		#4BSD scheduler
+options		INET			#InterNETworking
+options		NFSCLIENT		#Network Filesystem Client
+options		NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+options		PSEUDOFS		#Pseudo-filesystem framework
+options		_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+
+# Debugging for use in -current
+options		INVARIANTS
+options		INVARIANT_SUPPORT
+
+#options		BUS_DEBUG
+#makeoptions	BUS_DEBUG
+
+device		siba			# Sonics SiliconBackplane
+device		pci			# siba_pcib
+
+device		bfe			# XXX will build both pci and siba
+device		miibus			# attachments
+
+# pci devices
+# notyet:
+#device		ath			# in pci slot
+#device		ath_hal			# in pci slot
+
+device		usb			# USB Bus (required)
+device		uhci			# UHCI PCI->USB interface
+device		ehci			# EHCI PCI->USB interface (USB 2.0)
+
+# need to teach the code to ignore the bridge....
+
+
+# XXX notyet; need to be auto probed children of siba_cc.
+#device		uart
+#device		uart_ns8250
+
+device		genclock
+device		loop
+device		ether
+device		md
+device		mem
diff --git a/sys/mips/conf/SENTRY5.hints b/sys/mips/conf/SENTRY5.hints
new file mode 100644
index 0000000..0ee471e
--- /dev/null
+++ b/sys/mips/conf/SENTRY5.hints
@@ -0,0 +1,5 @@
+# $FreeBSD$
+hint.siba.0.at="nexus0"
+hint.siba.0.maddr="0x18000000"
+hint.siba.0.msize="0x1000"
+# XXX irq?