Import support for the Atmel AT91RM9200 CPU/Microcontroller. This SoC

is a ARM920T based CPU with a bunch of built-in peripherals.  The
inital import supports the SPI bus, the TWI bus (although iicbus
integration is not complete), the uarts, the system timer and the
onboard ethernet.  Support for the Kwikbyte KB9202
(http://www.kwikbyte.com) board is also included, although there's no
reason why the 9200 and the 9201 wouldn't also work.  Primitive
support for running under the skyeye emulator is also provided
(although skyeye's support for the AT91RM9200 is a little weak).

The code has been structured so that other members of Atmel's arm family can
be supported in the future.  The AT91SAM9260 is not presently supported
due to lack of hardware.  The arm7tdmi families are also not supported
becasue they lack an MMU.

Many thanks to cognet@ for his help and assistance in bringing up this
board.  He did much of the vm work and wrote parts of the uart and
system timer code as well as the bus space implementation.

The system boots to single user w/o problem, although the serial
console is a little slow and the ethernet driver is still in flux.

This work was sponsored by Timing Solutions, Corporation.  I am
grateful to their support of the FreeBSD project in this manner.

2 files changed, 171 insertions, 0 deletions

diff --git a/sys/arm/conf/KB920X b/sys/arm/conf/KB920X
new file mode 100644
index 0000000..c672c99
--- /dev/null
+++ b/sys/arm/conf/KB920X
@@ -0,0 +1,83 @@
+# GENERIC -- Generic kernel configuration file for FreeBSD/arm
+#
+# 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		arm
+ident		KB920X
+
+options		KERNPHYSADDR=0x20000000	
+options		KERNVIRTADDR=0xc0000000	
+options		PHYSADDR=0x20000000
+options		STARTUP_PAGETABLE_ADDR=0x20800000
+options		ARM32_NEW_VM_LAYOUT
+include		"../at91/std.kb920x"
+#To statically compile in device wiring instead of /boot/device.hints
+#hints		"GENERIC.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+makeoptions	CONF_CFLAGS=-mcpu=arm9
+options		DDB
+options		KDB
+
+options 	SCHED_4BSD		#4BSD scheduler
+options 	INET			#InterNETworking
+#options 	INET6			#IPv6 communications protocols
+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 	MD_ROOT			#MD is a potential root device
+options		MD_ROOT_SIZE=4096	# 3MB ram disk
+options 	ROOTDEVNAME=\"ufs:md0\"
+#options 	NFSCLIENT		#Network Filesystem Client
+#options 	NFSSERVER		#Network Filesystem Server
+#options 	NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+#options 	MSDOSFS			#MSDOS Filesystem
+#options 	CD9660			#ISO 9660 Filesystem
+#options 	PROCFS			#Process filesystem (requires PSEUDOFS)
+options 	PSEUDOFS		#Pseudo-filesystem framework
+options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
+#options 	SCSI_DELAY=5000		#Delay (in ms) before probing SCSI
+#options 	KTRACE			#ktrace(1) support
+options 	SYSVSHM			#SYSV-style shared memory
+options 	SYSVMSG			#SYSV-style message queues
+options 	SYSVSEM			#SYSV-style semaphores
+options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
+options 	SYSCTL_OMIT_DESCR
+options 	MUTEX_NOINLINE
+options 	NO_FFS_SNAPSHOT
+options 	NO_SWAPPING
+device		genclock
+device		loop
+device		ether
+device		nexus
+device		uart
+device		ate
+device		miibus
+
+# 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		mem			# Memory and kernel memory devices
+device		md
+device		at91_twi		# TWI: Two Wire Interface
+device		at91_spi		# SPI:
diff --git a/sys/arm/conf/SKYEYE b/sys/arm/conf/SKYEYE
new file mode 100644
index 0000000..9348942
--- /dev/null
+++ b/sys/arm/conf/SKYEYE
@@ -0,0 +1,88 @@
+# GENERIC -- Generic kernel configuration file for FreeBSD/arm
+#
+# 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		arm
+ident		KB920X
+
+options		KERNPHYSADDR=0xc0000000	
+options		KERNVIRTADDR=0xc0000000	
+options		PHYSADDR=0xc0000000
+include		"../at91/std.kb920x"
+#To statically compile in device wiring instead of /boot/device.hints
+#hints		"GENERIC.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+makeoptions	CONF_CFLAGS=-mcpu=arm9
+options		DDB
+options		KDB
+
+options		USART0_CONSOLE
+
+options 	SCHED_4BSD		#4BSD scheduler
+options 	INET			#InterNETworking
+options 	INET6			#IPv6 communications protocols
+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 	MD_ROOT			#MD is a potential root device
+options		ROOTDEVNAME=\"ufs:md0\"
+options 	NFSCLIENT		#Network Filesystem Client
+options 	NFSSERVER		#Network Filesystem Server
+options 	NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+#options 	MSDOSFS			#MSDOS Filesystem
+options 	CD9660			#ISO 9660 Filesystem
+#options 	PROCFS			#Process filesystem (requires PSEUDOFS)
+options 	PSEUDOFS		#Pseudo-filesystem framework
+options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
+options 	SCSI_DELAY=5000		#Delay (in ms) before probing SCSI
+#options 	KTRACE			#ktrace(1) support
+options 	SYSVSHM			#SYSV-style shared memory
+options 	SYSVMSG			#SYSV-style message queues
+options 	SYSVSEM			#SYSV-style semaphores
+options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
+device		genclock
+device		loop
+device		ether
+device		nexus
+#device		saarm
+device		rl
+device		uart
+#options 	AHC_REG_PRETTY_PRINT	# Print register bitfields in debug
+					# output.  Adds ~128k to driver.
+#options 	AHD_REG_PRETTY_PRINT	# Print register bitfields in debug
+					# output.  Adds ~215k to driver.
+
+# 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
+
+# To make an SMP kernel, the next two are needed
+#options 	SMP			# Symmetric MultiProcessor Kernel
+#options 	APIC_IO			# Symmetric (APIC) I/O
+
+device		mem			# Memory and kernel memory devices
+device md
+options		ARM32_NEW_VM_LAYOUT
+# Floppy drives
+
+