Fixed MTP to work with TWRP

arch/mn10300/Kconfig

@@ -0,0 +1,495 @@
+config MN10300
+	def_bool y
+	select HAVE_OPROFILE
+	select GENERIC_IRQ_SHOW
+	select ARCH_WANT_IPC_PARSE_VERSION
+	select HAVE_ARCH_TRACEHOOK
+	select HAVE_ARCH_KGDB
+	select GENERIC_ATOMIC64
+	select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
+	select VIRT_TO_BUS
+	select GENERIC_CLOCKEVENTS
+	select MODULES_USE_ELF_RELA
+	select OLD_SIGSUSPEND3
+	select OLD_SIGACTION
+	select HAVE_DEBUG_STACKOVERFLOW
+
+config AM33_2
+	def_bool n
+
+config AM33_3
+	def_bool n
+
+config AM34_2
+	def_bool n
+	select MN10300_HAS_ATOMIC_OPS_UNIT
+	select MN10300_HAS_CACHE_SNOOP
+
+config ERRATUM_NEED_TO_RELOAD_MMUCTR
+	def_bool y if AM33_3 || AM34_2
+
+config MMU
+	def_bool y
+
+config HIGHMEM
+	def_bool n
+
+config NUMA
+	def_bool n
+
+config UID16
+	def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+	def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+
+config GENERIC_CALIBRATE_DELAY
+	def_bool y
+
+config GENERIC_HWEIGHT
+	def_bool y
+
+config GENERIC_BUG
+	def_bool y
+
+config QUICKLIST
+	def_bool y
+
+config ARCH_HAS_ILOG2_U32
+	def_bool y
+
+config HOTPLUG_CPU
+	def_bool n
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+
+menu "Panasonic MN10300 system setup"
+
+choice
+	prompt "Unit type"
+	default MN10300_UNIT_ASB2303
+	help
+	  This option specifies board for which the kernel will be
+	  compiled. It affects the external peripherals catered for.
+
+config MN10300_UNIT_ASB2303
+	bool "ASB2303"
+
+config MN10300_UNIT_ASB2305
+	bool "ASB2305"
+
+config MN10300_UNIT_ASB2364
+	bool "ASB2364"
+	select SMSC911X_ARCH_HOOKS if SMSC911X
+
+endchoice
+
+choice
+	prompt "Processor support"
+	default MN10300_PROC_MN103E010
+	help
+	  This option specifies the processor for which the kernel will be
+	  compiled. It affects the on-chip peripherals catered for.
+
+config MN10300_PROC_MN103E010
+	bool "MN103E010"
+	depends on MN10300_UNIT_ASB2303 || MN10300_UNIT_ASB2305
+	select AM33_2
+	select MN10300_PROC_HAS_TTYSM0
+	select MN10300_PROC_HAS_TTYSM1
+	select MN10300_PROC_HAS_TTYSM2
+
+config MN10300_PROC_MN2WS0050
+	bool "MN2WS0050"
+	depends on MN10300_UNIT_ASB2364
+	select AM34_2
+	select MN10300_PROC_HAS_TTYSM0
+	select MN10300_PROC_HAS_TTYSM1
+	select MN10300_PROC_HAS_TTYSM2
+
+endchoice
+
+config MN10300_HAS_ATOMIC_OPS_UNIT
+	def_bool n
+	help
+	  This should be enabled if the processor has an atomic ops unit
+	  capable of doing LL/SC equivalent operations.
+
+config FPU
+	bool "FPU present"
+	default y
+	depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
+
+config LAZY_SAVE_FPU
+	bool "Save FPU state lazily"
+	default y
+	depends on FPU && !SMP
+	help
+	  Enable this to be lazy in the saving of the FPU state to the owning
+	  task's thread struct.  This is useful if most tasks on the system
+	  don't use the FPU as only those tasks that use it will pass it
+	  between them, and the state needn't be saved for a task that isn't
+	  using it.
+
+	  This can't be so easily used on SMP as the process that owns the FPU
+	  state on a CPU may be currently running on another CPU, so for the
+	  moment, it is disabled.
+
+source "arch/mn10300/mm/Kconfig.cache"
+
+config MN10300_TLB_USE_PIDR
+	def_bool y
+
+menu "Memory layout options"
+
+config KERNEL_RAM_BASE_ADDRESS
+	hex "Base address of kernel RAM"
+	default "0x90000000"
+
+config INTERRUPT_VECTOR_BASE
+	hex "Base address of vector table"
+	default "0x90000000"
+	help
+	  The base address of the vector table will be programmed into
+          the TBR register. It must be on 16MiB address boundary.
+
+config KERNEL_TEXT_ADDRESS
+	hex "Base address of kernel"
+	default "0x90001000"
+
+config KERNEL_ZIMAGE_BASE_ADDRESS
+	hex "Base address of compressed vmlinux image"
+	default "0x50700000"
+
+config BOOT_STACK_OFFSET
+	hex
+	default	"0xF00"	if SMP
+	default	"0xFF0" if !SMP
+
+config BOOT_STACK_SIZE
+	hex
+	depends on SMP
+	default	"0x100"
+endmenu
+
+config SMP
+	bool "Symmetric multi-processing support"
+	default y
+	depends on MN10300_PROC_MN2WS0050
+	---help---
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
+
+	  If you say N here, the kernel will run on uni- and multiprocessor
+	  machines, but will use only one CPU of a multiprocessor machine. If
+	  you say Y here, the kernel will run on many, but not all,
+	  uniprocessor machines. On a uniprocessor machine, the kernel
+	  will run faster if you say N here.
+
+	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
+	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  If you don't know what to do here, say N.
+
+config NR_CPUS
+	int
+	depends on SMP
+	default "2"
+
+source "kernel/Kconfig.preempt"
+
+config MN10300_CURRENT_IN_E2
+	bool "Hold current task address in E2 register"
+	depends on !SMP
+	default y
+	help
+	  This option removes the E2/R2 register from the set available to gcc
+	  for normal use and instead uses it to store the address of the
+	  current process's task_struct whilst in the kernel.
+
+	  This means the kernel doesn't need to calculate the address each time
+	  "current" is used (take SP, AND with mask and dereference pointer
+	  just to get the address), and instead can just use E2+offset
+	  addressing each time.
+
+	  This has no effect on userspace.
+
+config MN10300_USING_JTAG
+	bool "Using JTAG to debug kernel"
+	default y
+	help
+	  This options indicates that JTAG will be used to debug the kernel. It
+	  suppresses the use of certain hardware debugging features, such as
+	  single-stepping, which are taken over completely by the JTAG unit.
+
+source "kernel/Kconfig.hz"
+
+config MN10300_RTC
+	bool "Using MN10300 RTC"
+	depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
+	select GENERIC_CMOS_UPDATE
+	default n
+	help
+	  This option enables support for the RTC, thus enabling time to be
+	  tracked, even when system is powered down. This is available on-chip
+	  on the MN103E010.
+
+config MN10300_WD_TIMER
+	bool "Using MN10300 watchdog timer"
+	default y
+	help
+	  This options indicates that the watchdog timer will be used.
+
+config PCI
+	bool "Use PCI"
+	depends on MN10300_UNIT_ASB2305
+	default y
+	select GENERIC_PCI_IOMAP
+	help
+	  Some systems (such as the ASB2305) have PCI onboard. If you have one
+	  of these boards and you wish to use the PCI facilities, say Y here.
+
+	  The PCI-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>, contains valuable
+	  information about which PCI hardware does work under Linux and which
+	  doesn't.
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+menu "MN10300 internal serial options"
+
+config MN10300_PROC_HAS_TTYSM0
+	bool
+	default n
+
+config MN10300_PROC_HAS_TTYSM1
+	bool
+	default n
+
+config MN10300_PROC_HAS_TTYSM2
+	bool
+	default n
+
+config MN10300_TTYSM
+	bool "Support for ttySM serial ports"
+	depends on MN10300
+	default y
+	select SERIAL_CORE
+	help
+	  This option enables support for the on-chip serial ports that the
+	  MN10300 has available.
+
+config MN10300_TTYSM_CONSOLE
+	bool "Support for console on ttySM serial ports"
+	depends on MN10300_TTYSM
+	select SERIAL_CORE_CONSOLE
+	help
+	  This option enables support for a console on the on-chip serial ports
+	  that the MN10300 has available.
+
+#
+# /dev/ttySM0
+#
+config MN10300_TTYSM0
+	bool "Enable SIF0 (/dev/ttySM0)"
+	depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM0
+	help
+	  Enable access to SIF0 through /dev/ttySM0 or gdb-stub
+
+choice
+	prompt "Select the timer to supply the clock for SIF0"
+	default MN10300_TTYSM0_TIMER8
+	depends on MN10300_TTYSM0
+
+config MN10300_TTYSM0_TIMER8
+	bool "Use timer 8 (16-bit)"
+
+config MN10300_TTYSM0_TIMER2
+	bool "Use timer 2 (8-bit)"
+
+endchoice
+
+#
+# /dev/ttySM1
+#
+config MN10300_TTYSM1
+	bool "Enable SIF1 (/dev/ttySM1)"
+	depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM1
+	help
+	  Enable access to SIF1 through /dev/ttySM1 or gdb-stub
+
+choice
+	prompt "Select the timer to supply the clock for SIF1"
+	default MN10300_TTYSM1_TIMER12 \
+		if !(AM33_2 || AM33_3)
+	default MN10300_TTYSM1_TIMER9 \
+		if AM33_2 || AM33_3
+	depends on MN10300_TTYSM1
+
+config MN10300_TTYSM1_TIMER12
+	bool "Use timer 12 (16-bit)"
+	depends on !(AM33_2 || AM33_3)
+
+config MN10300_TTYSM1_TIMER9
+	bool "Use timer 9 (16-bit)"
+	depends on AM33_2 || AM33_3
+
+config MN10300_TTYSM1_TIMER3
+	bool "Use timer 3 (8-bit)"
+	depends on AM33_2 || AM33_3
+
+endchoice
+
+#
+# /dev/ttySM2
+#
+config MN10300_TTYSM2
+	bool "Enable SIF2 (/dev/ttySM2)"
+	depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM2
+	help
+	  Enable access to SIF2 through /dev/ttySM2 or gdb-stub
+
+choice
+	prompt "Select the timer to supply the clock for SIF2"
+	default MN10300_TTYSM2_TIMER3 \
+		if !(AM33_2 || AM33_3)
+	default MN10300_TTYSM2_TIMER10 \
+		if AM33_2 || AM33_3
+	depends on MN10300_TTYSM2
+
+config MN10300_TTYSM2_TIMER9
+	bool "Use timer 9 (16-bit)"
+	depends on !(AM33_2 || AM33_3)
+
+config MN10300_TTYSM2_TIMER1
+	bool "Use timer 1 (8-bit)"
+	depends on !(AM33_2 || AM33_3)
+
+config MN10300_TTYSM2_TIMER3
+	bool "Use timer 3 (8-bit)"
+	depends on !(AM33_2 || AM33_3)
+
+config MN10300_TTYSM2_TIMER10
+	bool "Use timer 10 (16-bit)"
+	depends on AM33_2 || AM33_3
+
+endchoice
+
+config MN10300_TTYSM2_CTS
+	bool "Enable the use of the CTS line /dev/ttySM2"
+	depends on MN10300_TTYSM2 && AM33_2
+
+endmenu
+
+menu "Interrupt request priority options"
+
+comment "[!] NOTE: A lower number/level indicates a higher priority (0 is highest, 6 is lowest)"
+
+comment "____Non-maskable interrupt levels____"
+comment "The following must be set to a higher priority than local_irq_disable() and on-chip serial"
+
+config DEBUGGER_IRQ_LEVEL
+	int "DEBUGGER interrupt priority"
+	depends on KERNEL_DEBUGGER
+	range 0 1 if LINUX_CLI_LEVEL = 2
+	range 0 2 if LINUX_CLI_LEVEL = 3
+	range 0 3 if LINUX_CLI_LEVEL = 4
+	range 0 4 if LINUX_CLI_LEVEL = 5
+	range 0 5 if LINUX_CLI_LEVEL = 6
+	default 0
+
+comment "The following must be set to a higher priority than local_irq_disable()"
+
+config MN10300_SERIAL_IRQ_LEVEL
+	int "MN10300 on-chip serial interrupt priority"
+	depends on MN10300_TTYSM
+	range 1 1 if LINUX_CLI_LEVEL = 2
+	range 1 2 if LINUX_CLI_LEVEL = 3
+	range 1 3 if LINUX_CLI_LEVEL = 4
+	range 1 4 if LINUX_CLI_LEVEL = 5
+	range 1 5 if LINUX_CLI_LEVEL = 6
+	default 1
+
+comment "-"
+comment "____Maskable interrupt levels____"
+
+config LINUX_CLI_LEVEL
+	int "The highest interrupt priority excluded by local_irq_disable() (2-6)"
+	range 2 6
+	default 2
+	help
+	  local_irq_disable() doesn't actually disable maskable interrupts -
+	  what it does is restrict the levels of interrupt which are permitted
+	  (a lower level indicates a higher priority) by lowering the value in
+	  EPSW.IM from 7.  Any interrupt is permitted for which the level is
+	  lower than EPSW.IM.
+
+	  Certain interrupts, such as DEBUGGER and virtual MN10300 on-chip
+	  serial DMA interrupts are allowed to interrupt normal disabled
+	  sections.
+
+comment "The following must be set to a equal to or lower priority than LINUX_CLI_LEVEL"
+
+config TIMER_IRQ_LEVEL
+	int "Kernel timer interrupt priority"
+	range LINUX_CLI_LEVEL 6
+	default 4
+
+config PCI_IRQ_LEVEL
+	int "PCI interrupt priority"
+	depends on PCI
+	range LINUX_CLI_LEVEL 6
+	default 5
+
+config ETHERNET_IRQ_LEVEL
+	int "Ethernet interrupt priority"
+	depends on SMC91X || SMC911X || SMSC911X
+	range LINUX_CLI_LEVEL 6
+	default 6
+
+config EXT_SERIAL_IRQ_LEVEL
+	int "External serial port interrupt priority"
+	depends on SERIAL_8250
+	range LINUX_CLI_LEVEL 6
+	default 6
+
+endmenu
+
+source "mm/Kconfig"
+
+menu "Power management options"
+source kernel/power/Kconfig
+endmenu
+
+endmenu
+
+
+menu "Executable formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/mn10300/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"

arch/mn10300/Kconfig.debug

@@ -0,0 +1,155 @@
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config DEBUG_DECOMPRESS_KERNEL
+	bool "Using serial port during decompressing kernel"
+	depends on DEBUG_KERNEL
+	default n
+	help
+	  If you say Y here you will confirm the start and the end of
+	  decompressing Linux seeing "Uncompressing Linux... " and
+	  "Ok, booting the kernel.\n" on console.
+
+config TEST_MISALIGNMENT_HANDLER
+	bool "Run tests on the misalignment handler"
+	depends on DEBUG_KERNEL
+	default n
+	help
+	  If you say Y here the kernel will execute a list of misaligned memory
+	  accesses to make sure the misalignment handler deals them with
+	  correctly.  If it does not, the kernel will throw a BUG.
+
+config KPROBES
+	bool "Kprobes"
+	depends on DEBUG_KERNEL
+	help
+	  Kprobes allows you to trap at almost any kernel address and
+	  execute a callback function.  register_kprobe() establishes
+	  a probepoint and specifies the callback.  Kprobes is useful
+	  for kernel debugging, non-intrusive instrumentation and testing.
+	  If in doubt, say "N".
+
+config GDBSTUB
+	bool "Remote GDB kernel debugging"
+	depends on DEBUG_KERNEL && DEPRECATED
+	select DEBUG_INFO
+	select FRAME_POINTER
+	help
+	  If you say Y here, it will be possible to remotely debug the kernel
+	  using gdb. This enlarges your kernel ELF image disk size by several
+	  megabytes and requires a machine with more than 16 MB, better 32 MB
+	  RAM to avoid excessive linking time. This is only useful for kernel
+	  hackers. If unsure, say N.
+
+	  This is deprecated in favour of KGDB and will be removed in a later
+	  version.
+
+config GDBSTUB_IMMEDIATE
+	bool "Break into GDB stub immediately"
+	depends on GDBSTUB
+	help
+	  If you say Y here, GDB stub will break into the program as soon as
+	  possible, leaving the program counter at the beginning of
+	  start_kernel() in init/main.c.
+
+config GDBSTUB_ALLOW_SINGLE_STEP
+	bool "Allow software single-stepping in GDB stub"
+	depends on GDBSTUB && !SMP && !PREEMPT
+	help
+	  Allow GDB stub to perform software single-stepping through the
+	  kernel.  This doesn't work very well on SMP or preemptible kernels as
+	  it uses temporary breakpoints to emulate single-stepping.
+
+config GDB_CONSOLE
+	bool "Console output to GDB"
+	depends on GDBSTUB
+	help
+	  If you are using GDB for remote debugging over a serial port and
+	  would like kernel messages to be formatted into GDB $O packets so
+	  that GDB prints them as program output, say 'Y'.
+
+config GDBSTUB_DEBUGGING
+	bool "Debug GDB stub by messages to serial port"
+	depends on GDBSTUB
+	help
+	  This causes debugging messages to be displayed at various points
+	  during execution of the GDB stub routines. Such messages will be
+	  displayed on ttyS0 if that isn't the GDB stub's port, or ttySM0
+	  otherwise.
+
+config GDBSTUB_DEBUG_ENTRY
+	bool "Debug GDB stub entry"
+	depends on GDBSTUB_DEBUGGING
+	help
+	  This option causes information to be displayed about entry to or exit
+	  from the main GDB stub routine.
+
+config GDBSTUB_DEBUG_PROTOCOL
+	bool "Debug GDB stub protocol"
+	depends on GDBSTUB_DEBUGGING
+	help
+	  This option causes information to be displayed about the GDB remote
+	  protocol messages generated exchanged with GDB.
+
+config GDBSTUB_DEBUG_IO
+	bool "Debug GDB stub I/O"
+	depends on GDBSTUB_DEBUGGING
+	help
+	  This option causes information to be displayed about GDB stub's
+	  low-level I/O.
+
+config GDBSTUB_DEBUG_BREAKPOINT
+	bool "Debug GDB stub breakpoint management"
+	depends on GDBSTUB_DEBUGGING
+	help
+	  This option causes information to be displayed about GDB stub's
+	  breakpoint management.
+
+choice
+	prompt "GDB stub port"
+	default GDBSTUB_ON_TTYSM0
+	depends on GDBSTUB
+	help
+	  Select the serial port used for GDB-stub.
+
+config GDBSTUB_ON_TTYSM0
+	bool "/dev/ttySM0 [SIF0]"
+	depends on MN10300_TTYSM0
+	select GDBSTUB_ON_TTYSMx
+
+config GDBSTUB_ON_TTYSM1
+	bool "/dev/ttySM1 [SIF1]"
+	depends on MN10300_TTYSM1
+	select GDBSTUB_ON_TTYSMx
+
+config GDBSTUB_ON_TTYSM2
+	bool "/dev/ttySM2 [SIF2]"
+	depends on MN10300_TTYSM2
+	select GDBSTUB_ON_TTYSMx
+
+config GDBSTUB_ON_TTYS0
+	bool "/dev/ttyS0"
+	select GDBSTUB_ON_TTYSx
+
+config GDBSTUB_ON_TTYS1
+	bool "/dev/ttyS1"
+	select GDBSTUB_ON_TTYSx
+
+endchoice
+
+config GDBSTUB_ON_TTYSMx
+	bool
+	depends on GDBSTUB_ON_TTYSM0 || GDBSTUB_ON_TTYSM1 || GDBSTUB_ON_TTYSM2
+	default y
+
+config GDBSTUB_ON_TTYSx
+	bool
+	depends on GDBSTUB_ON_TTYS0 || GDBSTUB_ON_TTYS1
+	default y
+
+endmenu
+
+config KERNEL_DEBUGGER
+	def_bool y
+	depends on GDBSTUB || KGDB

arch/mn10300/Makefile

@@ -0,0 +1,99 @@
+###############################################################################
+#
+# MN10300 Kernel makefile system specifications
+#
+# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+# Modified by David Howells (dhowells@redhat.com)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public Licence
+# as published by the Free Software Foundation; either version
+# 2 of the Licence, or (at your option) any later version.
+#
+###############################################################################
+
+KBUILD_DEFCONFIG := asb2303_defconfig
+
+CCSPECS	:= $(shell $(CC) -v 2>&1 | grep "^Reading specs from " | head -1 | cut -c20-)
+CCDIR	:= $(strip $(patsubst %/specs,%,$(CCSPECS)))
+KBUILD_CPPFLAGS += -nostdinc -I$(CCDIR)/include
+
+LDFLAGS		:=
+OBJCOPYFLAGS	:= -O binary -R .note -R .comment -R .GCC-command-line -R .note.gnu.build-id -S
+#LDFLAGS_vmlinux := -Map linkmap.txt
+CHECKFLAGS	+=
+
+PROCESSOR	:= unset
+UNIT		:= unset
+
+KBUILD_CFLAGS	+= -mam33 -DCPU=AM33 $(call cc-option,-mmem-funcs,)
+KBUILD_AFLAGS	+= -mam33 -DCPU=AM33
+
+ifeq ($(CONFIG_MN10300_CURRENT_IN_E2),y)
+KBUILD_CFLAGS	+= -ffixed-e2 -fcall-saved-e5
+endif
+
+ifeq ($(CONFIG_MN10300_PROC_MN103E010),y)
+PROCESSOR	:= mn103e010
+endif
+ifeq ($(CONFIG_MN10300_PROC_MN2WS0050),y)
+PROCESSOR	:= mn2ws0050
+endif
+
+ifeq ($(CONFIG_MN10300_UNIT_ASB2303),y)
+UNIT		:= asb2303
+endif
+ifeq ($(CONFIG_MN10300_UNIT_ASB2305),y)
+UNIT		:= asb2305
+endif
+ifeq ($(CONFIG_MN10300_UNIT_ASB2364),y)
+UNIT		:= asb2364
+endif
+
+
+head-y		:= arch/mn10300/kernel/head.o
+
+core-y		+= arch/mn10300/kernel/ arch/mn10300/mm/
+
+ifneq ($(PROCESSOR),unset)
+core-y		+= arch/mn10300/proc-$(PROCESSOR)/
+endif
+ifneq ($(UNIT),unset)
+core-y		+= arch/mn10300/unit-$(UNIT)/
+endif
+libs-y		+= arch/mn10300/lib/
+
+drivers-$(CONFIG_OPROFILE)	+= arch/mn10300/oprofile/
+
+boot := arch/mn10300/boot
+
+.PHONY: zImage
+
+KBUILD_IMAGE := $(boot)/zImage
+CLEAN_FILES += $(boot)/zImage
+CLEAN_FILES += $(boot)/compressed/vmlinux
+CLEAN_FILES += $(boot)/compressed/vmlinux.bin
+CLEAN_FILES += $(boot)/compressed/vmlinux.bin.gz
+
+zImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+all: zImage
+
+bootstrap:
+	$(Q)$(MAKEBOOT) bootstrap
+
+archclean:
+	$(Q)$(MAKE) $(clean)=arch/mn10300/proc-mn103e010
+	$(Q)$(MAKE) $(clean)=arch/mn10300/unit-asb2303
+	$(Q)$(MAKE) $(clean)=arch/mn10300/unit-asb2305
+
+define archhelp
+  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
+endef
+
+#
+# include the appropriate processor- and unit-specific headers
+#
+KBUILD_CPPFLAGS += -I$(srctree)/arch/mn10300/proc-$(PROCESSOR)/include
+KBUILD_CPPFLAGS += -I$(srctree)/arch/mn10300/unit-$(UNIT)/include

arch/mn10300/boot/Makefile

@@ -0,0 +1,28 @@
+# MN10300 kernel compressor and wrapper
+#
+# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+# Written by David Howells (dhowells@redhat.com)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public Licence
+# as published by the Free Software Foundation; either version
+# 2 of the Licence, or (at your option) any later version.
+#
+
+targets		:= vmlinux.bin zImage
+
+subdir- 	:= compressed
+
+# ---------------------------------------------------------------------------
+
+
+$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+	@echo 'Kernel: $@ is ready'
+
+$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@

arch/mn10300/boot/compressed/Makefile

@@ -0,0 +1,22 @@
+#
+# Create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
+
+LDFLAGS_vmlinux := -Ttext $(CONFIG_KERNEL_ZIMAGE_BASE_ADDRESS) -e startup_32
+
+$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-am33lin -T
+
+$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)

arch/mn10300/boot/compressed/head.S

@@ -0,0 +1,151 @@
+/* Boot entry point for a compressed MN10300 kernel
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+	.section	.text
+
+#define DEBUG
+
+#include <linux/linkage.h>
+#include <asm/cpu-regs.h>
+#include <asm/cache.h>
+#ifdef CONFIG_SMP
+#include <proc/smp-regs.h>
+#endif
+
+	.globl startup_32
+startup_32:
+#ifdef CONFIG_SMP
+	#
+	# Secondary CPUs jump directly to the kernel entry point
+	#
+	# Must save primary CPU's D0-D2 registers as they hold boot parameters
+	#
+	mov	(CPUID), d3
+	and	CPUID_MASK,d3
+	beq	startup_primary
+	mov	CONFIG_KERNEL_TEXT_ADDRESS,a0
+	jmp	(a0)
+
+startup_primary:
+#endif /* CONFIG_SMP */
+
+	# first save parameters from bootloader
+	mov	param_save_area,a0
+	mov	d0,(a0)
+	mov	d1,(4,a0)
+	mov	d2,(8,a0)
+
+	mov	sp,a3
+	mov	decomp_stack+0x2000-4,a0
+	mov	a0,sp
+
+	# invalidate and enable both of the caches
+	mov	CHCTR,a0
+	clr	d0
+	movhu	d0,(a0)					# turn off first
+	mov	CHCTR_ICINV|CHCTR_DCINV,d0
+	movhu	d0,(a0)
+	setlb
+	mov	(a0),d0
+	btst	CHCTR_ICBUSY|CHCTR_DCBUSY,d0		# wait till not busy
+	lne
+
+#ifdef CONFIG_MN10300_CACHE_ENABLED
+#ifdef CONFIG_MN10300_CACHE_WBACK
+	mov	CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0
+#else
+	mov	CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0
+#endif /* WBACK */
+	movhu	d0,(a0)					# enable
+#endif /* !ENABLED */
+
+	# clear the BSS area
+	mov	__bss_start,a0
+	mov	_end,a1
+	clr	d0
+bssclear:
+	cmp	a1,a0
+	bge	bssclear_end
+	movbu	d0,(a0)
+	inc	a0
+	bra	bssclear
+bssclear_end:
+
+	# decompress the kernel
+	call	decompress_kernel[],0
+#ifdef CONFIG_MN10300_CACHE_WBACK
+	call	mn10300_dcache_flush_inv[],0
+#endif
+
+	# disable caches again
+	mov	CHCTR,a0
+	clr	d0
+	movhu	d0,(a0)
+	setlb
+	mov	(a0),d0
+	btst	CHCTR_ICBUSY|CHCTR_DCBUSY,d0		# wait till not busy
+	lne
+
+	mov	param_save_area,a0
+	mov	(a0),d0
+	mov	(4,a0),d1
+	mov	(8,a0),d2
+
+	# jump to the kernel proper entry point
+	mov	a3,sp
+	mov	CONFIG_KERNEL_TEXT_ADDRESS,a0
+	jmp	(a0)
+
+
+###############################################################################
+#
+# Cache flush routines
+#
+###############################################################################
+#ifdef CONFIG_MN10300_CACHE_WBACK
+mn10300_dcache_flush_inv:
+	movhu	(CHCTR),d0
+	btst	CHCTR_DCEN,d0
+	beq	mn10300_dcache_flush_inv_end
+
+	mov	L1_CACHE_NENTRIES,d1
+	clr	a1
+
+mn10300_dcache_flush_inv_loop:
+	mov	(DCACHE_PURGE_WAY0(0),a1),d0	# unconditional purge
+	mov	(DCACHE_PURGE_WAY1(0),a1),d0	# unconditional purge
+	mov	(DCACHE_PURGE_WAY2(0),a1),d0	# unconditional purge
+	mov	(DCACHE_PURGE_WAY3(0),a1),d0	# unconditional purge
+
+	add	L1_CACHE_BYTES,a1
+	add	-1,d1
+	bne	mn10300_dcache_flush_inv_loop
+
+mn10300_dcache_flush_inv_end:
+	ret	[],0
+#endif /* CONFIG_MN10300_CACHE_WBACK */
+
+
+###############################################################################
+#
+# Data areas
+#
+###############################################################################
+	.data
+	.align		4
+param_save_area:
+	.rept 3
+	.word		0
+	.endr
+
+	.section	.bss
+	.align		4
+decomp_stack:
+	.space		0x2000

arch/mn10300/boot/compressed/misc.c

@@ -0,0 +1,393 @@
+/* MN10300 Miscellaneous helper routines for kernel decompressor
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Modified by David Howells (dhowells@redhat.com)
+ * - Derived from arch/x86/boot/compressed/misc_32.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/compiler.h>
+#include <asm/serial-regs.h>
+#include "misc.h"
+
+#ifndef CONFIG_GDBSTUB_ON_TTYSx
+/* display 'Uncompressing Linux... ' messages on ttyS0 or ttyS1 */
+#if 1	/* ttyS0 */
+#define CYG_DEV_BASE	0xA6FB0000
+#else   /* ttyS1 */
+#define CYG_DEV_BASE	0xA6FC0000
+#endif
+
+#define CYG_DEV_THR	(*((volatile __u8*)(CYG_DEV_BASE + 0x00)))
+#define CYG_DEV_MCR	(*((volatile __u8*)(CYG_DEV_BASE + 0x10)))
+#define SIO_MCR_DTR	0x01
+#define SIO_MCR_RTS	0x02
+#define CYG_DEV_LSR	(*((volatile __u8*)(CYG_DEV_BASE + 0x14)))
+#define SIO_LSR_THRE	0x20		/* transmitter holding register empty */
+#define SIO_LSR_TEMT	0x40		/* transmitter register empty */
+#define CYG_DEV_MSR	(*((volatile __u8*)(CYG_DEV_BASE + 0x18)))
+#define SIO_MSR_CTS	0x10		/* clear to send */
+#define SIO_MSR_DSR	0x20		/* data set ready */
+
+#define LSR_WAIT_FOR(STATE) \
+	do { while (!(CYG_DEV_LSR & SIO_LSR_##STATE)) {} } while (0)
+#define FLOWCTL_QUERY(LINE) \
+	({ CYG_DEV_MSR & SIO_MSR_##LINE; })
+#define FLOWCTL_WAIT_FOR(LINE) \
+	do { while (!(CYG_DEV_MSR & SIO_MSR_##LINE)) {} } while (0)
+#define FLOWCTL_CLEAR(LINE) \
+	do { CYG_DEV_MCR &= ~SIO_MCR_##LINE; } while (0)
+#define FLOWCTL_SET(LINE) \
+	do { CYG_DEV_MCR |= SIO_MCR_##LINE; } while (0)
+#endif
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+
+static inline void *memset(const void *s, int c, size_t n)
+{
+	int i;
+	char *ss = (char *) s;
+
+	for (i = 0; i < n; i++)
+		ss[i] = c;
+	return (void *)s;
+}
+
+#define memzero(s, n) memset((s), 0, (n))
+
+static inline void *memcpy(void *__dest, const void *__src, size_t __n)
+{
+	int i;
+	const char *s = __src;
+	char *d = __dest;
+
+	for (i = 0; i < __n; i++)
+		d[i] = s[i];
+	return __dest;
+}
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+#define WSIZE 0x8000	/* Window size must be at least 32k, and a power of
+			 * two */
+
+static uch *inbuf;	/* input buffer */
+static uch window[WSIZE]; /* sliding window buffer */
+
+static unsigned insize;	/* valid bytes in inbuf */
+static unsigned inptr;	/* index of next byte to be processed in inbuf */
+static unsigned outcnt;	/* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond, msg) { if (!(cond)) error(msg); }
+#  define Trace(x)	fprintf x
+#  define Tracev(x)	{ if (verbose) fprintf x ; }
+#  define Tracevv(x)	{ if (verbose > 1) fprintf x ; }
+#  define Tracec(c, x)	{ if (verbose && (c)) fprintf x ; }
+#  define Tracecv(c, x)	{ if (verbose > 1 && (c)) fprintf x ; }
+#else
+#  define Assert(cond, msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c, x)
+#  define Tracecv(c, x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(const char *) __attribute__((noreturn));
+static void kputs(const char *);
+
+static inline unsigned char get_byte(void)
+{
+	unsigned char ch = inptr < insize ? inbuf[inptr++] : fill_inbuf();
+
+#if 0
+	char hex[3];
+	hex[0] = ((ch & 0x0f) > 9) ?
+		((ch & 0x0f) + 'A' - 0xa) : ((ch & 0x0f) + '0');
+	hex[1] = ((ch >> 4) > 9) ?
+		((ch >> 4) + 'A' - 0xa) : ((ch >> 4) + '0');
+	hex[2] = 0;
+	kputs(hex);
+#endif
+	return ch;
+}
+
+/*
+ * This is set up by the setup-routine at boot-time
+ */
+#define EXT_MEM_K (*(unsigned short *)0x90002)
+#ifndef STANDARD_MEMORY_BIOS_CALL
+#define ALT_MEM_K (*(unsigned long *) 0x901e0)
+#endif
+#define SCREEN_INFO (*(struct screen_info *)0x90000)
+
+static long bytes_out;
+static uch *output_data;
+static unsigned long output_ptr;
+
+
+static unsigned long free_mem_ptr = (unsigned long) &end;
+static unsigned long free_mem_end_ptr = (unsigned long) &end + 0x90000;
+
+#define INPLACE_MOVE_ROUTINE	0x1000
+#define LOW_BUFFER_START	0x2000
+#define LOW_BUFFER_END		0x90000
+#define LOW_BUFFER_SIZE		(LOW_BUFFER_END - LOW_BUFFER_START)
+#define HEAP_SIZE		0x3000
+static int high_loaded;
+static uch *high_buffer_start /* = (uch *)(((ulg)&end) + HEAP_SIZE)*/;
+
+static char *vidmem = (char *)0xb8000;
+static int lines, cols;
+
+#define BOOTLOADER_INFLATE
+#include "../../../../lib/inflate.c"
+
+static inline void scroll(void)
+{
+	int i;
+
+	memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2);
+	for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2)
+		vidmem[i] = ' ';
+}
+
+static inline void kputchar(unsigned char ch)
+{
+#ifdef CONFIG_MN10300_UNIT_ASB2305
+	while (SC0STR & SC01STR_TBF)
+		continue;
+
+	if (ch == 0x0a) {
+		SC0TXB = 0x0d;
+		while (SC0STR & SC01STR_TBF)
+			continue;
+	}
+
+	SC0TXB = ch;
+
+#else
+	while (SC1STR & SC01STR_TBF)
+		continue;
+
+	if (ch == 0x0a) {
+		SC1TXB = 0x0d;
+		while (SC1STR & SC01STR_TBF)
+			continue;
+	}
+
+	SC1TXB = ch;
+
+#endif
+}
+
+static void kputs(const char *s)
+{
+#ifdef CONFIG_DEBUG_DECOMPRESS_KERNEL
+#ifndef CONFIG_GDBSTUB_ON_TTYSx
+	char ch;
+
+	FLOWCTL_SET(DTR);
+
+	while (*s) {
+		LSR_WAIT_FOR(THRE);
+
+		ch = *s++;
+		if (ch == 0x0a) {
+			CYG_DEV_THR = 0x0d;
+			LSR_WAIT_FOR(THRE);
+		}
+		CYG_DEV_THR = ch;
+	}
+
+	FLOWCTL_CLEAR(DTR);
+#else
+
+	for (; *s; s++)
+		kputchar(*s);
+
+#endif
+#endif /* CONFIG_DEBUG_DECOMPRESS_KERNEL */
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf()
+{
+	if (insize != 0)
+		error("ran out of input data\n");
+
+	inbuf = input_data;
+	insize = input_len;
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+static void flush_window_low(void)
+{
+    ulg c = crc;         /* temporary variable */
+    unsigned n;
+    uch *in, *out, ch;
+
+    in = window;
+    out = &output_data[output_ptr];
+    for (n = 0; n < outcnt; n++) {
+	    ch = *out++ = *in++;
+	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+    }
+    crc = c;
+    bytes_out += (ulg)outcnt;
+    output_ptr += (ulg)outcnt;
+    outcnt = 0;
+}
+
+static void flush_window_high(void)
+{
+    ulg c = crc;         /* temporary variable */
+    unsigned n;
+    uch *in,  ch;
+    in = window;
+    for (n = 0; n < outcnt; n++) {
+	ch = *output_data++ = *in++;
+	if ((ulg) output_data == LOW_BUFFER_END)
+		output_data = high_buffer_start;
+	c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+    }
+    crc = c;
+    bytes_out += (ulg)outcnt;
+    outcnt = 0;
+}
+
+static void flush_window(void)
+{
+	if (high_loaded)
+		flush_window_high();
+	else
+		flush_window_low();
+}
+
+static void error(const char *x)
+{
+	kputs("\n\n");
+	kputs(x);
+	kputs("\n\n -- System halted");
+
+	while (1)
+		/* Halt */;
+}
+
+#define STACK_SIZE (4096)
+
+long user_stack[STACK_SIZE];
+
+struct {
+	long *a;
+	short b;
+} stack_start = { &user_stack[STACK_SIZE], 0 };
+
+void setup_normal_output_buffer(void)
+{
+#ifdef STANDARD_MEMORY_BIOS_CALL
+	if (EXT_MEM_K < 1024)
+		error("Less than 2MB of memory.\n");
+#else
+	if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < 1024)
+		error("Less than 2MB of memory.\n");
+#endif
+	output_data = (char *) 0x100000; /* Points to 1M */
+}
+
+struct moveparams {
+	uch *low_buffer_start;
+	int lcount;
+	uch *high_buffer_start;
+	int hcount;
+};
+
+void setup_output_buffer_if_we_run_high(struct moveparams *mv)
+{
+	high_buffer_start = (uch *)(((ulg) &end) + HEAP_SIZE);
+#ifdef STANDARD_MEMORY_BIOS_CALL
+	if (EXT_MEM_K < (3 * 1024))
+		error("Less than 4MB of memory.\n");
+#else
+	if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < (3 * 1024))
+		error("Less than 4MB of memory.\n");
+#endif
+	mv->low_buffer_start = output_data = (char *) LOW_BUFFER_START;
+	high_loaded = 1;
+	free_mem_end_ptr = (long) high_buffer_start;
+	if (0x100000 + LOW_BUFFER_SIZE > (ulg) high_buffer_start) {
+		high_buffer_start = (uch *)(0x100000 + LOW_BUFFER_SIZE);
+		mv->hcount = 0; /* say: we need not to move high_buffer */
+	} else {
+		mv->hcount = -1;
+	}
+	mv->high_buffer_start = high_buffer_start;
+}
+
+void close_output_buffer_if_we_run_high(struct moveparams *mv)
+{
+	mv->lcount = bytes_out;
+	if (bytes_out > LOW_BUFFER_SIZE) {
+		mv->lcount = LOW_BUFFER_SIZE;
+		if (mv->hcount)
+			mv->hcount = bytes_out - LOW_BUFFER_SIZE;
+	} else {
+		mv->hcount = 0;
+	}
+}
+
+#undef DEBUGFLAG
+#ifdef DEBUGFLAG
+int debugflag;
+#endif
+
+int decompress_kernel(struct moveparams *mv)
+{
+#ifdef DEBUGFLAG
+	while (!debugflag)
+		barrier();
+#endif
+
+	output_data = (char *) CONFIG_KERNEL_TEXT_ADDRESS;
+
+	makecrc();
+	kputs("Uncompressing Linux... ");
+	gunzip();
+	kputs("Ok, booting the kernel.\n");
+	return 0;
+}

arch/mn10300/boot/compressed/misc.h

@@ -0,0 +1,18 @@
+/* Internal definitions for the MN10300 kernel decompressor
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+extern int end;
+
+/*
+ * vmlinux.lds
+ */
+extern char input_data[];
+extern int input_len;

arch/mn10300/boot/compressed/vmlinux.lds

@@ -0,0 +1,9 @@
+SECTIONS
+{
+  .data : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	input_data_end = .;
+	}
+}

arch/mn10300/boot/install.sh

@@ -0,0 +1,67 @@
+#!/bin/sh
+#
+# arch/mn10300/boot/install -c.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# Licence.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+#
+# "make install -c" script for i386 architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install -c path (blank if root directory)
+#   $5 - boot rom file
+#
+
+# User may have a custom install -c script
+
+rm -fr $4/../usr/include/linux $4/../usr/include/asm
+install -c -m 0755 $2 $4/vmlinuz
+install -c -m 0755 $5 $4/boot.rom
+install -c -m 0755 -d $4/../usr/include/linux
+cd ${srctree}/include/linux
+for i in `find . -maxdepth 1 -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux
+done
+install -c -m 0755 -d $4/../usr/include/linux/byteorder
+cd ${srctree}/include/linux/byteorder
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/byteorder
+done
+install -c -m 0755 -d $4/../usr/include/linux/lockd
+cd ${srctree}/include/linux/lockd
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/lockd
+done
+install -c -m 0755 -d $4/../usr/include/linux/netfilter_ipv4
+cd ${srctree}/include/linux/netfilter_ipv4
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/netfilter_ipv4
+done
+install -c -m 0755 -d $4/../usr/include/linux/nfsd
+cd ${srctree}/include/linux/nfsd
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/nfsd/$i
+done
+install -c -m 0755 -d $4/../usr/include/linux/raid
+cd ${srctree}/include/linux/raid
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/raid
+done
+install -c -m 0755 -d $4/../usr/include/linux/sunrpc
+cd ${srctree}/include/linux/sunrpc
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/sunrpc
+done
+install -c -m 0755 -d $4/../usr/include/asm
+cd ${srctree}/include/asm
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/asm
+done

arch/mn10300/boot/tools/build.c

@@ -0,0 +1,190 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  Copyright (C) 1997 Martin Mares
+ */
+
+/*
+ * This file builds a disk-image from three different files:
+ *
+ * - bootsect: exactly 512 bytes of 8086 machine code, loads the rest
+ * - setup: 8086 machine code, sets up system parm
+ * - system: 80386 code for actual system
+ *
+ * It does some checking that all files are of the correct type, and
+ * just writes the result to stdout, removing headers and padding to
+ * the right amount. It also writes some system data to stderr.
+ */
+
+/*
+ * Changes by tytso to allow root device specification
+ * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
+ * Cross compiling fixes by Gertjan van Wingerde, July 1996
+ * Rewritten by Martin Mares, April 1997
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <asm/boot.h>
+
+#define DEFAULT_MAJOR_ROOT 0
+#define DEFAULT_MINOR_ROOT 0
+
+/* Minimal number of setup sectors (see also bootsect.S) */
+#define SETUP_SECTS 4
+
+uint8_t buf[1024];
+int fd;
+int is_big_kernel;
+
+__attribute__((noreturn))
+void die(const char *str, ...)
+{
+	va_list args;
+	va_start(args, str);
+	vfprintf(stderr, str, args);
+	fputc('\n', stderr);
+	exit(1);
+}
+
+void file_open(const char *name)
+{
+	fd = open(name, O_RDONLY, 0);
+	if (fd < 0)
+		die("Unable to open `%s': %m", name);
+}
+
+__attribute__((noreturn))
+void usage(void)
+{
+	die("Usage: build [-b] bootsect setup system [rootdev] [> image]");
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int i, c, sz, setup_sectors;
+	uint32_t sys_size;
+	uint8_t major_root, minor_root;
+	struct stat sb;
+
+	if (argc > 2 && !strcmp(argv[1], "-b")) {
+		is_big_kernel = 1;
+		argc--, argv++;
+	}
+	if ((argc < 4) || (argc > 5))
+		usage();
+	if (argc > 4) {
+		if (!strcmp(argv[4], "CURRENT")) {
+			if (stat("/", &sb)) {
+				perror("/");
+				die("Couldn't stat /");
+			}
+			major_root = major(sb.st_dev);
+			minor_root = minor(sb.st_dev);
+		} else if (strcmp(argv[4], "FLOPPY")) {
+			if (stat(argv[4], &sb)) {
+				perror(argv[4]);
+				die("Couldn't stat root device.");
+			}
+			major_root = major(sb.st_rdev);
+			minor_root = minor(sb.st_rdev);
+		} else {
+			major_root = 0;
+			minor_root = 0;
+		}
+	} else {
+		major_root = DEFAULT_MAJOR_ROOT;
+		minor_root = DEFAULT_MINOR_ROOT;
+	}
+	fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
+
+	file_open(argv[1]);
+	i = read(fd, buf, sizeof(buf));
+	fprintf(stderr, "Boot sector %d bytes.\n", i);
+	if (i != 512)
+		die("Boot block must be exactly 512 bytes");
+	if (buf[510] != 0x55 || buf[511] != 0xaa)
+		die("Boot block hasn't got boot flag (0xAA55)");
+	buf[508] = minor_root;
+	buf[509] = major_root;
+	if (write(1, buf, 512) != 512)
+		die("Write call failed");
+	close(fd);
+
+	/* Copy the setup code */
+	file_open(argv[2]);
+	for (i = 0; (c = read(fd, buf, sizeof(buf))) > 0; i += c)
+		if (write(1, buf, c) != c)
+			die("Write call failed");
+	if (c != 0)
+		die("read-error on `setup'");
+	close(fd);
+
+	/* Pad unused space with zeros */
+	setup_sectors = (i + 511) / 512;
+	/* for compatibility with ancient versions of LILO. */
+	if (setup_sectors < SETUP_SECTS)
+		setup_sectors = SETUP_SECTS;
+	fprintf(stderr, "Setup is %d bytes.\n", i);
+	memset(buf, 0, sizeof(buf));
+	while (i < setup_sectors * 512) {
+		c = setup_sectors * 512 - i;
+		if (c > sizeof(buf))
+			c = sizeof(buf);
+		if (write(1, buf, c) != c)
+			die("Write call failed");
+		i += c;
+	}
+
+	file_open(argv[3]);
+	if (fstat(fd, &sb))
+		die("Unable to stat `%s': %m", argv[3]);
+	sz = sb.st_size;
+	fprintf(stderr, "System is %d kB\n", sz / 1024);
+	sys_size = (sz + 15) / 16;
+	/* 0x28000*16 = 2.5 MB, conservative estimate for the current maximum */
+	if (sys_size > (is_big_kernel ? 0x28000 : DEF_SYSSIZE))
+		die("System is too big. Try using %smodules.",
+			is_big_kernel ? "" : "bzImage or ");
+	if (sys_size > 0xffff)
+		fprintf(stderr,
+			"warning: kernel is too big for standalone boot "
+			"from floppy\n");
+	while (sz > 0) {
+		int l, n;
+
+		l = (sz > sizeof(buf)) ? sizeof(buf) : sz;
+		n = read(fd, buf, l);
+		if (n != l) {
+			if (n < 0)
+				die("Error reading %s: %m", argv[3]);
+			else
+				die("%s: Unexpected EOF", argv[3]);
+		}
+		if (write(1, buf, l) != l)
+			die("Write failed");
+		sz -= l;
+	}
+	close(fd);
+
+	/* Write sizes to the bootsector */
+	if (lseek(1, 497, SEEK_SET) != 497)
+		die("Output: seek failed");
+	buf[0] = setup_sectors;
+	if (write(1, buf, 1) != 1)
+		die("Write of setup sector count failed");
+	if (lseek(1, 500, SEEK_SET) != 500)
+		die("Output: seek failed");
+	buf[0] = (sys_size & 0xff);
+	buf[1] = ((sys_size >> 8) & 0xff);
+	if (write(1, buf, 2) != 2)
+		die("Write of image length failed");
+
+	return 0;
+}

arch/mn10300/configs/asb2303_defconfig

@@ -0,0 +1,73 @@
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_TINY_RCU=y
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_EXPERT=y
+# CONFIG_KALLSYMS is not set
+# CONFIG_HOTPLUG is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+CONFIG_PROFILING=y
+# CONFIG_BLOCK is not set
+CONFIG_PREEMPT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_MN10300_RTC=y
+CONFIG_MN10300_TTYSM_CONSOLE=y
+CONFIG_MN10300_TTYSM0=y
+CONFIG_MN10300_TTYSM1=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_MTD=y
+CONFIG_MTD_DEBUG=y
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_REDBOOT_PARTS=y
+CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_GEOMETRY=y
+CONFIG_MTD_CFI_I4=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_NETDEVICES=y
+CONFIG_NET_ETHERNET=y
+CONFIG_SMC91X=y
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_RTC=y
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_JFFS2_FS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_ROOT_NFS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_STRIP_ASM_SYMS=y

arch/mn10300/configs/asb2364_defconfig

@@ -0,0 +1,97 @@
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_RELAY=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_EXPERT=y
+# CONFIG_KALLSYMS is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+CONFIG_PROFILING=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLOCK is not set
+CONFIG_MN10300_UNIT_ASB2364=y
+CONFIG_PREEMPT=y
+# CONFIG_MN10300_USING_JTAG is not set
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_MN10300_TTYSM_CONSOLE=y
+CONFIG_MN10300_TTYSM0=y
+CONFIG_MN10300_TTYSM0_TIMER2=y
+CONFIG_MN10300_TTYSM1=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+CONFIG_IPV6=y
+# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET6_XFRM_MODE_BEET is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_DEBUG=y
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_REDBOOT_PARTS=y
+CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_GEOMETRY=y
+CONFIG_MTD_CFI_I4=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_NETDEVICES=y
+CONFIG_NET_ETHERNET=y
+CONFIG_SMSC911X=y
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_JFFS2_FS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_ROOT_NFS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DETECT_HUNG_TASK=y
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_DEBUG_INFO=y
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set

arch/mn10300/include/asm/Kbuild

@@ -0,0 +1,12 @@
+
+generic-y += barrier.h
+generic-y += clkdev.h
+generic-y += cputime.h
+generic-y += exec.h
+generic-y += hash.h
+generic-y += irq_work.h
+generic-y += mcs_spinlock.h
+generic-y += preempt.h
+generic-y += scatterlist.h
+generic-y += sections.h
+generic-y += trace_clock.h

arch/mn10300/include/asm/asm-offsets.h

@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>

arch/mn10300/include/asm/atomic.h

@@ -0,0 +1,199 @@
+/* MN10300 Atomic counter operations
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_ATOMIC_H
+#define _ASM_ATOMIC_H
+
+#include <asm/irqflags.h>
+#include <asm/cmpxchg.h>
+#include <asm/barrier.h>
+
+#ifndef CONFIG_SMP
+#include <asm-generic/atomic.h>
+#else
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc..
+ */
+
+#define ATOMIC_INIT(i)	{ (i) }
+
+#ifdef __KERNEL__
+
+/**
+ * atomic_read - read atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically reads the value of @v.  Note that the guaranteed
+ */
+#define atomic_read(v)	(ACCESS_ONCE((v)->counter))
+
+/**
+ * atomic_set - set atomic variable
+ * @v: pointer of type atomic_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.  Note that the guaranteed
+ */
+#define atomic_set(v, i) (((v)->counter) = (i))
+
+#define ATOMIC_OP(op)							\
+static inline void atomic_##op(int i, atomic_t *v)			\
+{									\
+	int retval, status;						\
+									\
+	asm volatile(							\
+		"1:	mov	%4,(_AAR,%3)	\n"			\
+		"	mov	(_ADR,%3),%1	\n"			\
+		"	" #op "	%5,%1		\n"			\
+		"	mov	%1,(_ADR,%3)	\n"			\
+		"	mov	(_ADR,%3),%0	\n"	/* flush */	\
+		"	mov	(_ASR,%3),%0	\n"			\
+		"	or	%0,%0		\n"			\
+		"	bne	1b		\n"			\
+		: "=&r"(status), "=&r"(retval), "=m"(v->counter)	\
+		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i)	\
+		: "memory", "cc");					\
+}
+
+#define ATOMIC_OP_RETURN(op)						\
+static inline int atomic_##op##_return(int i, atomic_t *v)		\
+{									\
+	int retval, status;						\
+									\
+	asm volatile(							\
+		"1:	mov	%4,(_AAR,%3)	\n"			\
+		"	mov	(_ADR,%3),%1	\n"			\
+		"	" #op "	%5,%1		\n"			\
+		"	mov	%1,(_ADR,%3)	\n"			\
+		"	mov	(_ADR,%3),%0	\n"	/* flush */	\
+		"	mov	(_ASR,%3),%0	\n"			\
+		"	or	%0,%0		\n"			\
+		"	bne	1b		\n"			\
+		: "=&r"(status), "=&r"(retval), "=m"(v->counter)	\
+		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i)	\
+		: "memory", "cc");					\
+	return retval;							\
+}
+
+#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
+
+ATOMIC_OPS(add)
+ATOMIC_OPS(sub)
+
+#undef ATOMIC_OPS
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
+
+static inline int atomic_add_negative(int i, atomic_t *v)
+{
+	return atomic_add_return(i, v) < 0;
+}
+
+static inline void atomic_inc(atomic_t *v)
+{
+	atomic_add_return(1, v);
+}
+
+static inline void atomic_dec(atomic_t *v)
+{
+	atomic_sub_return(1, v);
+}
+
+#define atomic_dec_return(v)		atomic_sub_return(1, (v))
+#define atomic_inc_return(v)		atomic_add_return(1, (v))
+
+#define atomic_sub_and_test(i, v)	(atomic_sub_return((i), (v)) == 0)
+#define atomic_dec_and_test(v)		(atomic_sub_return(1, (v)) == 0)
+#define atomic_inc_and_test(v)		(atomic_add_return(1, (v)) == 0)
+
+#define __atomic_add_unless(v, a, u)				\
+({								\
+	int c, old;						\
+	c = atomic_read(v);					\
+	while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+		c = old;					\
+	c;							\
+})
+
+#define atomic_xchg(ptr, v)		(xchg(&(ptr)->counter, (v)))
+#define atomic_cmpxchg(v, old, new)	(cmpxchg(&((v)->counter), (old), (new)))
+
+/**
+ * atomic_clear_mask - Atomically clear bits in memory
+ * @mask: Mask of the bits to be cleared
+ * @v: pointer to word in memory
+ *
+ * Atomically clears the bits set in mask from the memory word specified.
+ */
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+#ifdef CONFIG_SMP
+	int status;
+
+	asm volatile(
+		"1:	mov	%3,(_AAR,%2)	\n"
+		"	mov	(_ADR,%2),%0	\n"
+		"	and	%4,%0		\n"
+		"	mov	%0,(_ADR,%2)	\n"
+		"	mov	(_ADR,%2),%0	\n"	/* flush */
+		"	mov	(_ASR,%2),%0	\n"
+		"	or	%0,%0		\n"
+		"	bne	1b		\n"
+		: "=&r"(status), "=m"(*addr)
+		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(addr), "r"(~mask)
+		: "memory", "cc");
+#else
+	unsigned long flags;
+
+	mask = ~mask;
+	flags = arch_local_cli_save();
+	*addr &= mask;
+	arch_local_irq_restore(flags);
+#endif
+}
+
+/**
+ * atomic_set_mask - Atomically set bits in memory
+ * @mask: Mask of the bits to be set
+ * @v: pointer to word in memory
+ *
+ * Atomically sets the bits set in mask from the memory word specified.
+ */
+static inline void atomic_set_mask(unsigned long mask, unsigned long *addr)
+{
+#ifdef CONFIG_SMP
+	int status;
+
+	asm volatile(
+		"1:	mov	%3,(_AAR,%2)	\n"
+		"	mov	(_ADR,%2),%0	\n"
+		"	or	%4,%0		\n"
+		"	mov	%0,(_ADR,%2)	\n"
+		"	mov	(_ADR,%2),%0	\n"	/* flush */
+		"	mov	(_ASR,%2),%0	\n"
+		"	or	%0,%0		\n"
+		"	bne	1b		\n"
+		: "=&r"(status), "=m"(*addr)
+		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(addr), "r"(mask)
+		: "memory", "cc");
+#else
+	unsigned long flags;
+
+	flags = arch_local_cli_save();
+	*addr |= mask;
+	arch_local_irq_restore(flags);
+#endif
+}
+
+#endif /* __KERNEL__ */
+#endif /* CONFIG_SMP */
+#endif /* _ASM_ATOMIC_H */

arch/mn10300/include/asm/bitops.h

@@ -0,0 +1,232 @@
+/* MN10300 bit operations
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ *
+ * These have to be done with inline assembly: that way the bit-setting
+ * is guaranteed to be atomic. All bit operations return 0 if the bit
+ * was cleared before the operation and != 0 if it was not.
+ *
+ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
+ */
+#ifndef __ASM_BITOPS_H
+#define __ASM_BITOPS_H
+
+#include <asm/cpu-regs.h>
+#include <asm/barrier.h>
+
+/*
+ * set bit
+ */
+#define __set_bit(nr, addr)					\
+({								\
+	volatile unsigned char *_a = (unsigned char *)(addr);	\
+	const unsigned shift = (nr) & 7;			\
+	_a += (nr) >> 3;					\
+								\
+	asm volatile("bset %2,(%1) # set_bit reg"		\
+		     : "=m"(*_a)				\
+		     : "a"(_a), "d"(1 << shift),  "m"(*_a)	\
+		     : "memory", "cc");				\
+})
+
+#define set_bit(nr, addr) __set_bit((nr), (addr))
+
+/*
+ * clear bit
+ */
+#define ___clear_bit(nr, addr)					\
+({								\
+	volatile unsigned char *_a = (unsigned char *)(addr);	\
+	const unsigned shift = (nr) & 7;			\
+	_a += (nr) >> 3;					\
+								\
+	asm volatile("bclr %2,(%1) # clear_bit reg"		\
+		     : "=m"(*_a)				\
+		     : "a"(_a), "d"(1 << shift), "m"(*_a)	\
+		     : "memory", "cc");				\
+})
+
+#define clear_bit(nr, addr) ___clear_bit((nr), (addr))
+
+
+static inline void __clear_bit(unsigned long nr, volatile void *addr)
+{
+	unsigned int *a = (unsigned int *) addr;
+	int mask;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	*a &= ~mask;
+}
+
+/*
+ * test bit
+ */
+static inline int test_bit(unsigned long nr, const volatile void *addr)
+{
+	return 1UL & (((const volatile unsigned int *) addr)[nr >> 5] >> (nr & 31));
+}
+
+/*
+ * change bit
+ */
+static inline void __change_bit(unsigned long nr, volatile void *addr)
+{
+	int	mask;
+	unsigned int *a = (unsigned int *) addr;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	*a ^= mask;
+}
+
+extern void change_bit(unsigned long nr, volatile void *addr);
+
+/*
+ * test and set bit
+ */
+#define __test_and_set_bit(nr,addr)				\
+({								\
+	volatile unsigned char *_a = (unsigned char *)(addr);	\
+	const unsigned shift = (nr) & 7;			\
+	unsigned epsw;						\
+	_a += (nr) >> 3;					\
+								\
+	asm volatile("bset %3,(%2) # test_set_bit reg\n"	\
+		     "mov epsw,%1"				\
+		     : "=m"(*_a), "=d"(epsw)			\
+		     : "a"(_a), "d"(1 << shift), "m"(*_a)	\
+		     : "memory", "cc");				\
+								\
+	!(epsw & EPSW_FLAG_Z);					\
+})
+
+#define test_and_set_bit(nr, addr) __test_and_set_bit((nr), (addr))
+
+/*
+ * test and clear bit
+ */
+#define __test_and_clear_bit(nr, addr)				\
+({								\
+        volatile unsigned char *_a = (unsigned char *)(addr);	\
+	const unsigned shift = (nr) & 7;			\
+	unsigned epsw;						\
+	_a += (nr) >> 3;					\
+								\
+	asm volatile("bclr %3,(%2) # test_clear_bit reg\n"	\
+		     "mov epsw,%1"				\
+		     : "=m"(*_a), "=d"(epsw)			\
+		     : "a"(_a), "d"(1 << shift), "m"(*_a)	\
+		     : "memory", "cc");				\
+								\
+	!(epsw & EPSW_FLAG_Z);					\
+})
+
+#define test_and_clear_bit(nr, addr) __test_and_clear_bit((nr), (addr))
+
+/*
+ * test and change bit
+ */
+static inline int __test_and_change_bit(unsigned long nr, volatile void *addr)
+{
+	int	mask, retval;
+	unsigned int *a = (unsigned int *)addr;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+	retval = (mask & *a) != 0;
+	*a ^= mask;
+
+	return retval;
+}
+
+extern int test_and_change_bit(unsigned long nr, volatile void *addr);
+
+#include <asm-generic/bitops/lock.h>
+
+#ifdef __KERNEL__
+
+/**
+ * __ffs - find first bit set
+ * @x: the word to search
+ *
+ * - return 31..0 to indicate bit 31..0 most least significant bit set
+ * - if no bits are set in x, the result is undefined
+ */
+static inline __attribute__((const))
+unsigned long __ffs(unsigned long x)
+{
+	int bit;
+	asm("bsch %2,%0" : "=r"(bit) : "0"(0), "r"(x & -x) : "cc");
+	return bit;
+}
+
+/*
+ * special slimline version of fls() for calculating ilog2_u32()
+ * - note: no protection against n == 0
+ */
+static inline __attribute__((const))
+int __ilog2_u32(u32 n)
+{
+	int bit;
+	asm("bsch %2,%0" : "=r"(bit) : "0"(0), "r"(n) : "cc");
+	return bit;
+}
+
+/**
+ * fls - find last bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as ffs:
+ * - return 32..1 to indicate bit 31..0 most significant bit set
+ * - return 0 to indicate no bits set
+ */
+static inline __attribute__((const))
+int fls(int x)
+{
+	return (x != 0) ? __ilog2_u32(x) + 1 : 0;
+}
+
+/**
+ * __fls - find last (most-significant) set bit in a long word
+ * @word: the word to search
+ *
+ * Undefined if no set bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __fls(unsigned long word)
+{
+	return __ilog2_u32(word);
+}
+
+/**
+ * ffs - find first bit set
+ * @x: the word to search
+ *
+ * - return 32..1 to indicate bit 31..0 most least significant bit set
+ * - return 0 to indicate no bits set
+ */
+static inline __attribute__((const))
+int ffs(int x)
+{
+	/* Note: (x & -x) gives us a mask that is the least significant
+	 * (rightmost) 1-bit of the value in x.
+	 */
+	return fls(x & -x);
+}
+
+#include <asm-generic/bitops/ffz.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/find.h>
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
+#include <asm-generic/bitops/le.h>
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_BITOPS_H */

arch/mn10300/include/asm/bug.h

@@ -0,0 +1,37 @@
+/* MN10300 Kernel bug reporting
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_BUG_H
+#define _ASM_BUG_H
+
+#ifdef CONFIG_BUG
+
+/*
+ * Tell the user there is some problem.
+ */
+#define BUG()							\
+do {								\
+	asm volatile(						\
+		"	syscall 15			\n"	\
+		"0:					\n"	\
+		"	.section __bug_table,\"a\"	\n"	\
+		"	.long 0b,%0,%1			\n"	\
+		"	.previous			\n"	\
+		:						\
+		: "i"(__FILE__), "i"(__LINE__)			\
+		);						\
+} while (1)
+
+#define HAVE_ARCH_BUG
+#endif /* CONFIG_BUG */
+
+#include <asm-generic/bug.h>
+
+#endif /* _ASM_BUG_H */

arch/mn10300/include/asm/bugs.h

@@ -0,0 +1,20 @@
+/* MN10300 Checks for architecture-dependent bugs
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_BUGS_H
+#define _ASM_BUGS_H
+
+#include <asm/processor.h>
+
+static inline void __init check_bugs(void)
+{
+}
+
+#endif /* _ASM_BUGS_H */

arch/mn10300/include/asm/busctl-regs.h

@@ -0,0 +1,151 @@
+/* AM33v2 on-board bus controller registers
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_BUSCTL_REGS_H
+#define _ASM_BUSCTL_REGS_H
+
+#include <asm/cpu-regs.h>
+
+#ifdef __KERNEL__
+
+/* bus controller registers */
+#define BCCR			__SYSREG(0xc0002000, u32)	/* bus controller control reg */
+#define BCCR_B0AD		0x00000003	/* block 0 (80000000-83ffffff) bus allocation */
+#define BCCR_B1AD		0x0000000c	/* block 1 (84000000-87ffffff) bus allocation */
+#define BCCR_B2AD		0x00000030	/* block 2 (88000000-8bffffff) bus allocation */
+#define BCCR_B3AD		0x000000c0	/* block 3 (8c000000-8fffffff) bus allocation */
+#define BCCR_B4AD		0x00000300	/* block 4 (90000000-93ffffff) bus allocation */
+#define BCCR_B5AD		0x00000c00	/* block 5 (94000000-97ffffff) bus allocation */
+#define BCCR_B6AD		0x00003000	/* block 6 (98000000-9bffffff) bus allocation */
+#define BCCR_B7AD		0x0000c000	/* block 7 (9c000000-9fffffff) bus allocation */
+#define BCCR_BxAD_EXBUS		0x0		/* - direct to system bus controller */
+#define BCCR_BxAD_OPEXBUS	0x1		/* - direct to memory bus controller */
+#define BCCR_BxAD_OCMBUS	0x2		/* - direct to on chip memory */
+#define BCCR_API		0x00070000	/* bus arbitration priority */
+#define BCCR_API_DMACICD	0x00000000	/* - DMA > CI > CD */
+#define BCCR_API_DMACDCI	0x00010000	/* - DMA > CD > CI */
+#define BCCR_API_CICDDMA	0x00020000	/* - CI > CD > DMA */
+#define BCCR_API_CDCIDMA	0x00030000	/* - CD > CI > DMA */
+#define BCCR_API_ROUNDROBIN	0x00040000	/* - round robin */
+#define BCCR_BEPRI_DMACICD	0x00c00000	/* bus error address priority */
+#define BCCR_BEPRI_DMACDCI	0x00000000	/* - DMA > CI > CD */
+#define BCCR_BEPRI_CICDDMA	0x00400000	/* - DMA > CD > CI */
+#define BCCR_BEPRI_CDCIDMA	0x00800000	/* - CI > CD > DMA */
+#define BCCR_BEPRI		0x00c00000	/* - CD > CI > DMA */
+#define BCCR_TMON		0x03000000	/* timeout value settings */
+#define BCCR_TMON_16IOCLK	0x00000000	/* - 16 IOCLK cycles */
+#define BCCR_TMON_256IOCLK	0x01000000	/* - 256 IOCLK cycles */
+#define BCCR_TMON_4096IOCLK	0x02000000	/* - 4096 IOCLK cycles */
+#define BCCR_TMON_65536IOCLK	0x03000000	/* - 65536 IOCLK cycles */
+#define BCCR_TMOE		0x10000000	/* timeout detection enable */
+
+#define BCBERR			__SYSREG(0xc0002010, u32)	/* bus error source reg */
+#define BCBERR_BESB		0x0000001f	/* erroneous access destination space */
+#define BCBERR_BESB_MON		0x00000001	/* - monitor space */
+#define BCBERR_BESB_IO		0x00000002	/* - IO bus */
+#define BCBERR_BESB_EX		0x00000004	/* - EX bus */
+#define BCBERR_BESB_OPEX	0x00000008	/* - OpEX bus */
+#define BCBERR_BESB_OCM		0x00000010	/* - on chip memory */
+#define BCBERR_BERW		0x00000100	/* type of access */
+#define BCBERR_BERW_WRITE	0x00000000	/* - write */
+#define BCBERR_BERW_READ	0x00000100	/* - read */
+#define BCBERR_BESD		0x00000200	/* error detector */
+#define BCBERR_BESD_BCU		0x00000000	/* - BCU detected error */
+#define BCBERR_BESD_SLAVE_BUS	0x00000200	/* - slave bus detected error */
+#define BCBERR_BEBST		0x00000400	/* type of access */
+#define BCBERR_BEBST_SINGLE	0x00000000	/* - single */
+#define BCBERR_BEBST_BURST	0x00000400	/* - burst */
+#define BCBERR_BEME		0x00000800	/* multiple bus error flag */
+#define BCBERR_BEMR		0x00007000	/* master bus that caused the error */
+#define BCBERR_BEMR_NOERROR	0x00000000	/* - no error */
+#define BCBERR_BEMR_CI		0x00001000	/* - CPU instruction fetch bus caused error */
+#define BCBERR_BEMR_CD		0x00002000	/* - CPU data bus caused error */
+#define BCBERR_BEMR_DMA		0x00004000	/* - DMA bus caused error */
+
+#define BCBEAR			__SYSREGC(0xc0002020, u32)	/* bus error address reg */
+
+/* system bus controller registers */
+#define SBBASE(X)		__SYSREG(0xd8c00100 + (X) * 0x10, u32)	/* SBC base addr regs */
+#define SBBASE_BE		0x00000001	/* bank enable */
+#define SBBASE_BAM		0x0000fffe	/* bank address mask [31:17] */
+#define SBBASE_BBA		0xfffe0000	/* bank base address [31:17] */
+
+#define SBCNTRL0(X)		__SYSREG(0xd8c00200 + (X) * 0x10, u32)	/* SBC bank ctrl0 regs */
+#define SBCNTRL0_WEH		0x00000f00	/* write enable hold */
+#define SBCNTRL0_REH		0x0000f000	/* read enable hold */
+#define SBCNTRL0_RWH		0x000f0000	/* SRW signal hold */
+#define SBCNTRL0_CSH		0x00f00000	/* chip select hold */
+#define SBCNTRL0_DAH		0x0f000000	/* data hold */
+#define SBCNTRL0_ADH		0xf0000000	/* address hold */
+
+#define SBCNTRL1(X)		__SYSREG(0xd8c00204 + (X) * 0x10, u32)	/* SBC bank ctrl1 regs */
+#define SBCNTRL1_WED		0x00000f00	/* write enable delay */
+#define SBCNTRL1_RED		0x0000f000	/* read enable delay */
+#define SBCNTRL1_RWD		0x000f0000	/* SRW signal delay */
+#define SBCNTRL1_ASW		0x00f00000	/* address strobe width */
+#define SBCNTRL1_CSD		0x0f000000	/* chip select delay */
+#define SBCNTRL1_ASD		0xf0000000	/* address strobe delay */
+
+#define SBCNTRL2(X)		__SYSREG(0xd8c00208 + (X) * 0x10, u32)	/* SBC bank ctrl2 regs */
+#define SBCNTRL2_WC		0x000000ff	/* wait count */
+#define SBCNTRL2_BWC		0x00000f00	/* burst wait count */
+#define SBCNTRL2_WM		0x01000000	/* wait mode setting */
+#define SBCNTRL2_WM_FIXEDWAIT	0x00000000	/* - fixed wait access */
+#define SBCNTRL2_WM_HANDSHAKE	0x01000000	/* - handshake access */
+#define SBCNTRL2_BM		0x02000000	/* bus synchronisation mode */
+#define SBCNTRL2_BM_SYNC	0x00000000	/* - synchronous mode */
+#define SBCNTRL2_BM_ASYNC	0x02000000	/* - asynchronous mode */
+#define SBCNTRL2_BW		0x04000000	/* bus width */
+#define SBCNTRL2_BW_32		0x00000000	/* - 32 bits */
+#define SBCNTRL2_BW_16		0x04000000	/* - 16 bits */
+#define SBCNTRL2_RWINV		0x08000000	/* R/W signal invert polarity */
+#define SBCNTRL2_RWINV_NORM	0x00000000	/* - normal (read high) */
+#define SBCNTRL2_RWINV_INV	0x08000000	/* - inverted (read low) */
+#define SBCNTRL2_BT		0x70000000	/* bus type setting */
+#define SBCNTRL2_BT_SRAM	0x00000000	/* - SRAM interface */
+#define SBCNTRL2_BT_ADMUX	0x00000000	/* - addr/data multiplexed interface */
+#define SBCNTRL2_BT_BROM	0x00000000	/* - burst ROM interface */
+#define SBCNTRL2_BTSE		0x80000000	/* burst enable */
+
+/* memory bus controller */
+#define SDBASE(X)		__SYSREG(0xda000008 + (X) * 0x4, u32)	/* MBC base addr regs */
+#define SDBASE_CE		0x00000001	/* chip enable */
+#define SDBASE_CBAM		0x0000fff0	/* chip base address mask [31:20] */
+#define SDBASE_CBAM_SHIFT	16
+#define SDBASE_CBA		0xfff00000	/* chip base address [31:20] */
+
+#define SDRAMBUS		__SYSREG(0xda000000, u32)	/* bus mode control reg */
+#define SDRAMBUS_REFEN		0x00000004	/* refresh enable */
+#define SDRAMBUS_TRC		0x00000018	/* refresh command delay time */
+#define SDRAMBUS_BSTPT		0x00000020	/* burst stop command enable */
+#define SDRAMBUS_PONSEQ		0x00000040	/* power on sequence */
+#define SDRAMBUS_SELFREQ	0x00000080	/* self-refresh mode request */
+#define SDRAMBUS_SELFON		0x00000100	/* self-refresh mode on */
+#define SDRAMBUS_SIZE		0x00030000	/* SDRAM size */
+#define SDRAMBUS_SIZE_64Mbit	0x00010000	/* 64Mbit SDRAM (x16) */
+#define SDRAMBUS_SIZE_128Mbit	0x00020000	/* 128Mbit SDRAM (x16) */
+#define SDRAMBUS_SIZE_256Mbit	0x00030000	/* 256Mbit SDRAM (x16) */
+#define SDRAMBUS_TRASWAIT	0x000c0000	/* row address precharge command cycle number */
+#define SDRAMBUS_REFNUM		0x00300000	/* refresh command number */
+#define SDRAMBUS_BSTWAIT	0x00c00000	/* burst stop command cycle */
+#define SDRAMBUS_SETWAIT	0x03000000	/* mode register setting command cycle */
+#define SDRAMBUS_PREWAIT	0x0c000000	/* precharge command cycle */
+#define SDRAMBUS_RASLATE	0x30000000	/* RAS latency */
+#define SDRAMBUS_CASLATE	0xc0000000	/* CAS latency */
+
+#define SDREFCNT		__SYSREG(0xda000004, u32)	/* refresh period reg */
+#define SDREFCNT_PERI		0x00000fff	/* refresh period */
+
+#define SDSHDW			__SYSREG(0xda000010, u32)	/* test reg */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_BUSCTL_REGS_H */

arch/mn10300/include/asm/cache.h

@@ -0,0 +1,60 @@
+/* MN10300 cache management registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_CACHE_H
+#define _ASM_CACHE_H
+
+#include <asm/cpu-regs.h>
+#include <proc/cache.h>
+
+#ifndef __ASSEMBLY__
+#define L1_CACHE_DISPARITY	(L1_CACHE_NENTRIES * L1_CACHE_BYTES)
+#else
+#define L1_CACHE_DISPARITY	L1_CACHE_NENTRIES * L1_CACHE_BYTES
+#endif
+
+#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
+
+/* data cache purge registers
+ * - read from the register to unconditionally purge that cache line
+ * - write address & 0xffffff00 to conditionally purge that cache line
+ *   - clear LSB to request invalidation as well
+ */
+#define DCACHE_PURGE(WAY, ENTRY) \
+	__SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \
+		 (ENTRY) * L1_CACHE_BYTES, u32)
+
+#define DCACHE_PURGE_WAY0(ENTRY) \
+	__SYSREG(0xc8400000 + 0 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
+#define DCACHE_PURGE_WAY1(ENTRY) \
+	__SYSREG(0xc8400000 + 1 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
+#define DCACHE_PURGE_WAY2(ENTRY) \
+	__SYSREG(0xc8400000 + 2 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
+#define DCACHE_PURGE_WAY3(ENTRY) \
+	__SYSREG(0xc8400000 + 3 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
+
+/* instruction cache access registers */
+#define ICACHE_DATA(WAY, ENTRY, OFF) \
+	__SYSREG(0xc8000000 + (WAY) * L1_CACHE_WAYDISP + \
+		(ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32)
+#define ICACHE_TAG(WAY, ENTRY)	 \
+	__SYSREG(0xc8100000 + (WAY) * L1_CACHE_WAYDISP + \
+		(ENTRY) * L1_CACHE_BYTES, u32)
+
+/* data cache access registers */
+#define DCACHE_DATA(WAY, ENTRY, OFF) \
+	__SYSREG(0xc8200000 + (WAY) * L1_CACHE_WAYDISP + \
+		(ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32)
+#define DCACHE_TAG(WAY, ENTRY)	 \
+	__SYSREG(0xc8300000 + (WAY) * L1_CACHE_WAYDISP + \
+		(ENTRY) * L1_CACHE_BYTES, u32)
+
+#endif /* _ASM_CACHE_H */

arch/mn10300/include/asm/cacheflush.h

@@ -0,0 +1,171 @@
+/* MN10300 Cache flushing
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_CACHEFLUSH_H
+#define _ASM_CACHEFLUSH_H
+
+#ifndef __ASSEMBLY__
+
+/* Keep includes the same across arches.  */
+#include <linux/mm.h>
+
+/*
+ * Primitive routines
+ */
+#ifdef CONFIG_MN10300_CACHE_ENABLED
+extern void mn10300_local_icache_inv(void);
+extern void mn10300_local_icache_inv_page(unsigned long start);
+extern void mn10300_local_icache_inv_range(unsigned long start, unsigned long end);
+extern void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size);
+extern void mn10300_local_dcache_inv(void);
+extern void mn10300_local_dcache_inv_page(unsigned long start);
+extern void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end);
+extern void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size);
+extern void mn10300_icache_inv(void);
+extern void mn10300_icache_inv_page(unsigned long start);
+extern void mn10300_icache_inv_range(unsigned long start, unsigned long end);
+extern void mn10300_icache_inv_range2(unsigned long start, unsigned long size);
+extern void mn10300_dcache_inv(void);
+extern void mn10300_dcache_inv_page(unsigned long start);
+extern void mn10300_dcache_inv_range(unsigned long start, unsigned long end);
+extern void mn10300_dcache_inv_range2(unsigned long start, unsigned long size);
+#ifdef CONFIG_MN10300_CACHE_WBACK
+extern void mn10300_local_dcache_flush(void);
+extern void mn10300_local_dcache_flush_page(unsigned long start);
+extern void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end);
+extern void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size);
+extern void mn10300_local_dcache_flush_inv(void);
+extern void mn10300_local_dcache_flush_inv_page(unsigned long start);
+extern void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end);
+extern void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size);
+extern void mn10300_dcache_flush(void);
+extern void mn10300_dcache_flush_page(unsigned long start);
+extern void mn10300_dcache_flush_range(unsigned long start, unsigned long end);
+extern void mn10300_dcache_flush_range2(unsigned long start, unsigned long size);
+extern void mn10300_dcache_flush_inv(void);
+extern void mn10300_dcache_flush_inv_page(unsigned long start);
+extern void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end);
+extern void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size);
+#else
+#define mn10300_local_dcache_flush()			do {} while (0)
+#define mn10300_local_dcache_flush_page(start)		do {} while (0)
+#define mn10300_local_dcache_flush_range(start, end)	do {} while (0)
+#define mn10300_local_dcache_flush_range2(start, size)	do {} while (0)
+#define mn10300_local_dcache_flush_inv() \
+		mn10300_local_dcache_inv()
+#define mn10300_local_dcache_flush_inv_page(start) \
+		mn10300_local_dcache_inv_page(start)
+#define mn10300_local_dcache_flush_inv_range(start, end) \
+		mn10300_local_dcache_inv_range(start, end)
+#define mn10300_local_dcache_flush_inv_range2(start, size) \
+		mn10300_local_dcache_inv_range2(start, size)
+#define mn10300_dcache_flush()				do {} while (0)
+#define mn10300_dcache_flush_page(start)		do {} while (0)
+#define mn10300_dcache_flush_range(start, end)		do {} while (0)
+#define mn10300_dcache_flush_range2(start, size)	do {} while (0)
+#define mn10300_dcache_flush_inv()			mn10300_dcache_inv()
+#define mn10300_dcache_flush_inv_page(start) \
+	mn10300_dcache_inv_page((start))
+#define mn10300_dcache_flush_inv_range(start, end) \
+	mn10300_dcache_inv_range((start), (end))
+#define mn10300_dcache_flush_inv_range2(start, size) \
+	mn10300_dcache_inv_range2((start), (size))
+#endif /* CONFIG_MN10300_CACHE_WBACK */
+#else
+#define mn10300_local_icache_inv()			do {} while (0)
+#define mn10300_local_icache_inv_page(start)		do {} while (0)
+#define mn10300_local_icache_inv_range(start, end)	do {} while (0)
+#define mn10300_local_icache_inv_range2(start, size)	do {} while (0)
+#define mn10300_local_dcache_inv()			do {} while (0)
+#define mn10300_local_dcache_inv_page(start)		do {} while (0)
+#define mn10300_local_dcache_inv_range(start, end)	do {} while (0)
+#define mn10300_local_dcache_inv_range2(start, size)	do {} while (0)
+#define mn10300_local_dcache_flush()			do {} while (0)
+#define mn10300_local_dcache_flush_inv_page(start)	do {} while (0)
+#define mn10300_local_dcache_flush_inv()		do {} while (0)
+#define mn10300_local_dcache_flush_inv_range(start, end)do {} while (0)
+#define mn10300_local_dcache_flush_inv_range2(start, size) do {} while (0)
+#define mn10300_local_dcache_flush_page(start)		do {} while (0)
+#define mn10300_local_dcache_flush_range(start, end)	do {} while (0)
+#define mn10300_local_dcache_flush_range2(start, size)	do {} while (0)
+#define mn10300_icache_inv()				do {} while (0)
+#define mn10300_icache_inv_page(start)			do {} while (0)
+#define mn10300_icache_inv_range(start, end)		do {} while (0)
+#define mn10300_icache_inv_range2(start, size)		do {} while (0)
+#define mn10300_dcache_inv()				do {} while (0)
+#define mn10300_dcache_inv_page(start)			do {} while (0)
+#define mn10300_dcache_inv_range(start, end)		do {} while (0)
+#define mn10300_dcache_inv_range2(start, size)		do {} while (0)
+#define mn10300_dcache_flush()				do {} while (0)
+#define mn10300_dcache_flush_inv_page(start)		do {} while (0)
+#define mn10300_dcache_flush_inv()			do {} while (0)
+#define mn10300_dcache_flush_inv_range(start, end)	do {} while (0)
+#define mn10300_dcache_flush_inv_range2(start, size)	do {} while (0)
+#define mn10300_dcache_flush_page(start)		do {} while (0)
+#define mn10300_dcache_flush_range(start, end)		do {} while (0)
+#define mn10300_dcache_flush_range2(start, size)	do {} while (0)
+#endif /* CONFIG_MN10300_CACHE_ENABLED */
+
+/*
+ * Virtually-indexed cache management (our cache is physically indexed)
+ */
+#define flush_cache_all()			do {} while (0)
+#define flush_cache_mm(mm)			do {} while (0)
+#define flush_cache_dup_mm(mm)			do {} while (0)
+#define flush_cache_range(mm, start, end)	do {} while (0)
+#define flush_cache_page(vma, vmaddr, pfn)	do {} while (0)
+#define flush_cache_vmap(start, end)		do {} while (0)
+#define flush_cache_vunmap(start, end)		do {} while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
+#define flush_dcache_page(page)			do {} while (0)
+#define flush_dcache_mmap_lock(mapping)		do {} while (0)
+#define flush_dcache_mmap_unlock(mapping)	do {} while (0)
+
+/*
+ * Physically-indexed cache management
+ */
+#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE)
+extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
+extern void flush_icache_range(unsigned long start, unsigned long end);
+#elif defined(CONFIG_MN10300_CACHE_INV_ICACHE)
+static inline void flush_icache_page(struct vm_area_struct *vma,
+				     struct page *page)
+{
+	mn10300_icache_inv_page(page_to_phys(page));
+}
+extern void flush_icache_range(unsigned long start, unsigned long end);
+#else
+#define flush_icache_range(start, end)		do {} while (0)
+#define flush_icache_page(vma, pg)		do {} while (0)
+#endif
+
+
+#define flush_icache_user_range(vma, pg, adr, len) \
+	flush_icache_range(adr, adr + len)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+	do {					\
+		memcpy(dst, src, len);		\
+		flush_icache_page(vma, page);	\
+	} while (0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+	memcpy(dst, src, len)
+
+/*
+ * Internal debugging function
+ */
+#ifdef CONFIG_DEBUG_PAGEALLOC
+extern void kernel_map_pages(struct page *page, int numpages, int enable);
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_CACHEFLUSH_H */

arch/mn10300/include/asm/checksum.h

@@ -0,0 +1,86 @@
+/* MN10300 Optimised checksumming code
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_CHECKSUM_H
+#define _ASM_CHECKSUM_H
+
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+extern __wsum csum_partial_copy_nocheck(const void *src, void *dst,
+					int len, __wsum sum);
+extern __wsum csum_partial_copy_from_user(const void *src, void *dst,
+					  int len, __wsum sum,
+					  int *err_ptr);
+extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+extern __sum16 ip_compute_csum(const void *buff, int len);
+
+#define csum_partial_copy_fromuser csum_partial_copy
+extern __wsum csum_partial_copy(const void *src, void *dst, int len,
+				__wsum sum);
+
+static inline __sum16 csum_fold(__wsum sum)
+{
+	asm(
+		"	add	%1,%0		\n"
+		"	addc	0xffff,%0	\n"
+		: "=r" (sum)
+		: "r" (sum << 16), "0" (sum & 0xffff0000)
+		: "cc"
+	    );
+	return (~sum) >> 16;
+}
+
+static inline __wsum csum_tcpudp_nofold(unsigned long saddr,
+					unsigned long daddr,
+					unsigned short len,
+					unsigned short proto,
+					__wsum sum)
+{
+	__wsum tmp;
+
+	tmp = (__wsum) ntohs(len) << 16;
+	tmp += (__wsum) proto << 8;
+
+	asm(
+		"	add	%1,%0		\n"
+		"	addc	%2,%0		\n"
+		"	addc	%3,%0		\n"
+		"	addc	0,%0		\n"
+		: "=r" (sum)
+		: "r" (daddr), "r"(saddr), "r"(tmp), "0"(sum)
+		: "cc"
+	    );
+	return sum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __sum16 csum_tcpudp_magic(unsigned long saddr,
+					unsigned long daddr,
+					unsigned short len,
+					unsigned short proto,
+					__wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+#undef _HAVE_ARCH_IPV6_CSUM
+
+/*
+ *	Copy and checksum to user
+ */
+#define HAVE_CSUM_COPY_USER
+extern __wsum csum_and_copy_to_user(const void *src, void *dst, int len,
+				    __wsum sum, int *err_ptr);
+
+
+#endif /* _ASM_CHECKSUM_H */

arch/mn10300/include/asm/cmpxchg.h

@@ -0,0 +1,115 @@
+/* MN10300 Atomic xchg/cmpxchg operations
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_CMPXCHG_H
+#define _ASM_CMPXCHG_H
+
+#include <asm/irqflags.h>
+
+#ifdef CONFIG_SMP
+#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+static inline
+unsigned long __xchg(volatile unsigned long *m, unsigned long val)
+{
+	unsigned long status;
+	unsigned long oldval;
+
+	asm volatile(
+		"1:	mov	%4,(_AAR,%3)	\n"
+		"	mov	(_ADR,%3),%1	\n"
+		"	mov	%5,(_ADR,%3)	\n"
+		"	mov	(_ADR,%3),%0	\n"	/* flush */
+		"	mov	(_ASR,%3),%0	\n"
+		"	or	%0,%0		\n"
+		"	bne	1b		\n"
+		: "=&r"(status), "=&r"(oldval), "=m"(*m)
+		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(m), "r"(val)
+		: "memory", "cc");
+
+	return oldval;
+}
+
+static inline unsigned long __cmpxchg(volatile unsigned long *m,
+				      unsigned long old, unsigned long new)
+{
+	unsigned long status;
+	unsigned long oldval;
+
+	asm volatile(
+		"1:	mov	%4,(_AAR,%3)	\n"
+		"	mov	(_ADR,%3),%1	\n"
+		"	cmp	%5,%1		\n"
+		"	bne	2f		\n"
+		"	mov	%6,(_ADR,%3)	\n"
+		"2:	mov	(_ADR,%3),%0	\n"	/* flush */
+		"	mov	(_ASR,%3),%0	\n"
+		"	or	%0,%0		\n"
+		"	bne	1b		\n"
+		: "=&r"(status), "=&r"(oldval), "=m"(*m)
+		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(m),
+		  "r"(old), "r"(new)
+		: "memory", "cc");
+
+	return oldval;
+}
+#else  /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */
+#error "No SMP atomic operation support!"
+#endif /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */
+
+#else  /* CONFIG_SMP */
+
+/*
+ * Emulate xchg for non-SMP MN10300
+ */
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((struct __xchg_dummy *)(x))
+
+static inline
+unsigned long __xchg(volatile unsigned long *m, unsigned long val)
+{
+	unsigned long oldval;
+	unsigned long flags;
+
+	flags = arch_local_cli_save();
+	oldval = *m;
+	*m = val;
+	arch_local_irq_restore(flags);
+	return oldval;
+}
+
+/*
+ * Emulate cmpxchg for non-SMP MN10300
+ */
+static inline unsigned long __cmpxchg(volatile unsigned long *m,
+				      unsigned long old, unsigned long new)
+{
+	unsigned long oldval;
+	unsigned long flags;
+
+	flags = arch_local_cli_save();
+	oldval = *m;
+	if (oldval == old)
+		*m = new;
+	arch_local_irq_restore(flags);
+	return oldval;
+}
+
+#endif /* CONFIG_SMP */
+
+#define xchg(ptr, v)						\
+	((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr),	\
+				     (unsigned long)(v)))
+
+#define cmpxchg(ptr, o, n)					\
+	((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
+					(unsigned long)(o),	\
+					(unsigned long)(n)))
+
+#endif /* _ASM_CMPXCHG_H */

arch/mn10300/include/asm/cpu-regs.h

@@ -0,0 +1,353 @@
+/* MN10300 Core system registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_CPU_REGS_H
+#define _ASM_CPU_REGS_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+#endif
+
+/* we tell the compiler to pretend to be AM33 so that it doesn't try and use
+ * the FP regs, but tell the assembler that we're actually allowed AM33v2
+ * instructions */
+#ifndef __ASSEMBLY__
+asm(" .am33_2\n");
+#else
+.am33_2
+#endif
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#define __SYSREG(ADDR, TYPE) (*(volatile TYPE *)(ADDR))
+#define __SYSREGC(ADDR, TYPE) (*(const volatile TYPE *)(ADDR))
+#else
+#define __SYSREG(ADDR, TYPE) ADDR
+#define __SYSREGC(ADDR, TYPE) ADDR
+#endif
+
+/* CPU registers */
+#define EPSW_FLAG_Z		0x00000001	/* zero flag */
+#define EPSW_FLAG_N		0x00000002	/* negative flag */
+#define EPSW_FLAG_C		0x00000004	/* carry flag */
+#define EPSW_FLAG_V		0x00000008	/* overflow flag */
+#define EPSW_IM			0x00000700	/* interrupt mode */
+#define EPSW_IM_0		0x00000000	/* interrupt mode 0 */
+#define EPSW_IM_1		0x00000100	/* interrupt mode 1 */
+#define EPSW_IM_2		0x00000200	/* interrupt mode 2 */
+#define EPSW_IM_3		0x00000300	/* interrupt mode 3 */
+#define EPSW_IM_4		0x00000400	/* interrupt mode 4 */
+#define EPSW_IM_5		0x00000500	/* interrupt mode 5 */
+#define EPSW_IM_6		0x00000600	/* interrupt mode 6 */
+#define EPSW_IM_7		0x00000700	/* interrupt mode 7 */
+#define EPSW_IE			0x00000800	/* interrupt enable */
+#define EPSW_S			0x00003000	/* software auxiliary bits */
+#define EPSW_T			0x00008000	/* trace enable */
+#define EPSW_nSL		0x00010000	/* not supervisor level */
+#define EPSW_NMID		0x00020000	/* nonmaskable interrupt disable */
+#define EPSW_nAR		0x00040000	/* register bank control */
+#define EPSW_ML			0x00080000	/* monitor level */
+#define EPSW_FE			0x00100000	/* FPU enable */
+#define EPSW_IM_SHIFT		8		/* EPSW_IM_SHIFT determines the interrupt mode */
+
+#define NUM2EPSW_IM(num)	((num) << EPSW_IM_SHIFT)
+
+/* FPU registers */
+#define FPCR_EF_I		0x00000001	/* inexact result FPU exception flag */
+#define FPCR_EF_U		0x00000002	/* underflow FPU exception flag */
+#define FPCR_EF_O		0x00000004	/* overflow FPU exception flag */
+#define FPCR_EF_Z		0x00000008	/* zero divide FPU exception flag */
+#define FPCR_EF_V		0x00000010	/* invalid operand FPU exception flag */
+#define FPCR_EE_I		0x00000020	/* inexact result FPU exception enable */
+#define FPCR_EE_U		0x00000040	/* underflow FPU exception enable */
+#define FPCR_EE_O		0x00000080	/* overflow FPU exception enable */
+#define FPCR_EE_Z		0x00000100	/* zero divide FPU exception enable */
+#define FPCR_EE_V		0x00000200	/* invalid operand FPU exception enable */
+#define FPCR_EC_I		0x00000400	/* inexact result FPU exception cause */
+#define FPCR_EC_U		0x00000800	/* underflow FPU exception cause */
+#define FPCR_EC_O		0x00001000	/* overflow FPU exception cause */
+#define FPCR_EC_Z		0x00002000	/* zero divide FPU exception cause */
+#define FPCR_EC_V		0x00004000	/* invalid operand FPU exception cause */
+#define FPCR_RM			0x00030000	/* rounding mode */
+#define FPCR_RM_NEAREST		0x00000000	/* - round to nearest value */
+#define FPCR_FCC_U		0x00040000	/* FPU unordered condition code */
+#define FPCR_FCC_E		0x00080000	/* FPU equal condition code */
+#define FPCR_FCC_G		0x00100000	/* FPU greater than condition code */
+#define FPCR_FCC_L		0x00200000	/* FPU less than condition code */
+#define FPCR_INIT		0x00000000	/* no exceptions, rounding to nearest */
+
+/* CPU control registers */
+#define CPUP			__SYSREG(0xc0000020, u16)	/* CPU pipeline register */
+#define CPUP_DWBD		0x0020		/* write buffer disable flag */
+#define CPUP_IPFD		0x0040		/* instruction prefetch disable flag */
+#define CPUP_EXM		0x0080		/* exception operation mode */
+#define CPUP_EXM_AM33V1		0x0000		/* - AM33 v1 exception mode */
+#define CPUP_EXM_AM33V2		0x0080		/* - AM33 v2 exception mode */
+
+#define CPUM			__SYSREG(0xc0000040, u16)	/* CPU mode register */
+#define CPUM_SLEEP		0x0004		/* set to enter sleep state */
+#define CPUM_HALT		0x0008		/* set to enter halt state */
+#define CPUM_STOP		0x0010		/* set to enter stop state */
+
+#define CPUREV			__SYSREGC(0xc0000050, u32)	/* CPU revision register */
+#define CPUREV_TYPE		0x0000000f	/* CPU type */
+#define CPUREV_TYPE_S		0
+#define CPUREV_TYPE_AM33_1	0x00000000	/* - AM33-1 core, AM33/1.00 arch */
+#define CPUREV_TYPE_AM33_2	0x00000001	/* - AM33-2 core, AM33/2.00 arch */
+#define CPUREV_TYPE_AM34_1	0x00000002	/* - AM34-1 core, AM33/2.00 arch */
+#define CPUREV_TYPE_AM33_3	0x00000003	/* - AM33-3 core, AM33/2.00 arch */
+#define CPUREV_TYPE_AM34_2	0x00000004	/* - AM34-2 core, AM33/3.00 arch */
+#define CPUREV_REVISION		0x000000f0	/* CPU revision */
+#define CPUREV_REVISION_S	4
+#define CPUREV_ICWAY		0x00000f00	/* number of instruction cache ways */
+#define CPUREV_ICWAY_S		8
+#define CPUREV_ICSIZE		0x0000f000	/* instruction cache way size */
+#define CPUREV_ICSIZE_S		12
+#define CPUREV_DCWAY		0x000f0000	/* number of data cache ways */
+#define CPUREV_DCWAY_S		16
+#define CPUREV_DCSIZE		0x00f00000	/* data cache way size */
+#define CPUREV_DCSIZE_S		20
+#define CPUREV_FPUTYPE		0x0f000000	/* FPU core type */
+#define CPUREV_FPUTYPE_NONE	0x00000000	/* - no FPU core implemented */
+#define CPUREV_OCDCTG		0xf0000000	/* on-chip debug function category */
+
+#define DCR			__SYSREG(0xc0000030, u16)	/* Debug control register */
+
+/* interrupt/exception control registers */
+#define IVAR0			__SYSREG(0xc0000000, u16)	/* interrupt vector 0 */
+#define IVAR1			__SYSREG(0xc0000004, u16)	/* interrupt vector 1 */
+#define IVAR2			__SYSREG(0xc0000008, u16)	/* interrupt vector 2 */
+#define IVAR3			__SYSREG(0xc000000c, u16)	/* interrupt vector 3 */
+#define IVAR4			__SYSREG(0xc0000010, u16)	/* interrupt vector 4 */
+#define IVAR5			__SYSREG(0xc0000014, u16)	/* interrupt vector 5 */
+#define IVAR6			__SYSREG(0xc0000018, u16)	/* interrupt vector 6 */
+
+#define TBR			__SYSREG(0xc0000024, u32)	/* Trap table base */
+#define TBR_TB			0xff000000	/* table base address bits 31-24 */
+#define TBR_INT_CODE		0x00ffffff	/* interrupt code */
+
+#define DEAR			__SYSREG(0xc0000038, u32)	/* Data access exception address */
+
+#define sISR			__SYSREG(0xc0000044, u32)	/* Supervisor interrupt status */
+#define	sISR_IRQICE		0x00000001	/* ICE interrupt */
+#define	sISR_ISTEP		0x00000002	/* single step interrupt */
+#define	sISR_MISSA		0x00000004	/* memory access address misalignment fault */
+#define	sISR_UNIMP		0x00000008	/* unimplemented instruction execution fault */
+#define	sISR_PIEXE		0x00000010	/* program interrupt */
+#define	sISR_MEMERR		0x00000020	/* illegal memory access fault */
+#define	sISR_IBREAK		0x00000040	/* instraction break interrupt */
+#define	sISR_DBSRL		0x00000080	/* debug serial interrupt */
+#define	sISR_PERIDB		0x00000100	/* peripheral debug interrupt */
+#define	sISR_EXUNIMP		0x00000200	/* unimplemented ex-instruction execution fault */
+#define	sISR_OBREAK		0x00000400	/* operand break interrupt */
+#define	sISR_PRIV		0x00000800	/* privileged instruction execution fault */
+#define	sISR_BUSERR		0x00001000	/* bus error fault */
+#define	sISR_DBLFT		0x00002000	/* double fault */
+#define	sISR_DBG		0x00008000	/* debug reserved interrupt */
+#define sISR_ITMISS		0x00010000	/* instruction TLB miss */
+#define sISR_DTMISS		0x00020000	/* data TLB miss */
+#define sISR_ITEX		0x00040000	/* instruction TLB access exception */
+#define sISR_DTEX		0x00080000	/* data TLB access exception */
+#define sISR_ILGIA		0x00100000	/* illegal instruction access exception */
+#define sISR_ILGDA		0x00200000	/* illegal data access exception */
+#define sISR_IOIA		0x00400000	/* internal I/O space instruction access excep */
+#define sISR_PRIVA		0x00800000	/* privileged space instruction access excep */
+#define sISR_PRIDA		0x01000000	/* privileged space data access excep */
+#define sISR_DISA		0x02000000	/* data space instruction access excep */
+#define sISR_SYSC		0x04000000	/* system call instruction excep */
+#define sISR_FPUD		0x08000000	/* FPU disabled excep */
+#define sISR_FPUUI		0x10000000	/* FPU unimplemented instruction excep */
+#define sISR_FPUOP		0x20000000	/* FPU operation excep */
+#define sISR_NE			0x80000000	/* multiple synchronous exceptions excep */
+
+/* cache control registers */
+#define CHCTR			__SYSREG(0xc0000070, u16)	/* cache control */
+#define CHCTR_ICEN		0x0001		/* instruction cache enable */
+#define CHCTR_DCEN		0x0002		/* data cache enable */
+#define CHCTR_ICBUSY		0x0004		/* instruction cache busy */
+#define CHCTR_DCBUSY		0x0008		/* data cache busy */
+#define CHCTR_ICINV		0x0010		/* instruction cache invalidate */
+#define CHCTR_DCINV		0x0020		/* data cache invalidate */
+#define CHCTR_DCWTMD		0x0040		/* data cache writing mode */
+#define CHCTR_DCWTMD_WRBACK	0x0000		/* - write back mode */
+#define CHCTR_DCWTMD_WRTHROUGH	0x0040		/* - write through mode */
+#define CHCTR_DCALMD		0x0080		/* data cache allocation mode */
+#define CHCTR_ICWMD		0x0f00		/* instruction cache way mode */
+#define CHCTR_DCWMD		0xf000		/* data cache way mode */
+
+#ifdef CONFIG_AM34_2
+#define ICIVCR			__SYSREG(0xc0000c00, u32)	/* icache area invalidate control */
+#define ICIVCR_ICIVBSY		0x00000008			/* icache area invalidate busy */
+#define ICIVCR_ICI		0x00000001			/* icache area invalidate */
+
+#define ICIVMR			__SYSREG(0xc0000c04, u32)	/* icache area invalidate mask */
+
+#define	DCPGCR			__SYSREG(0xc0000c10, u32)	/* data cache area purge control */
+#define	DCPGCR_DCPGBSY		0x00000008			/* data cache area purge busy */
+#define	DCPGCR_DCP		0x00000002			/* data cache area purge */
+#define	DCPGCR_DCI		0x00000001			/* data cache area invalidate */
+
+#define	DCPGMR			__SYSREG(0xc0000c14, u32)	/* data cache area purge mask */
+#endif /* CONFIG_AM34_2 */
+
+/* MMU control registers */
+#define MMUCTR			__SYSREG(0xc0000090, u32)	/* MMU control register */
+#define MMUCTR_IRP		0x0000003f	/* instruction TLB replace pointer */
+#define MMUCTR_ITE		0x00000040	/* instruction TLB enable */
+#define MMUCTR_IIV		0x00000080	/* instruction TLB invalidate */
+#define MMUCTR_ITL		0x00000700	/* instruction TLB lock pointer */
+#define MMUCTR_ITL_NOLOCK	0x00000000	/* - no lock */
+#define MMUCTR_ITL_LOCK0	0x00000100	/* - entry 0 locked */
+#define MMUCTR_ITL_LOCK0_1	0x00000200	/* - entry 0-1 locked */
+#define MMUCTR_ITL_LOCK0_3	0x00000300	/* - entry 0-3 locked */
+#define MMUCTR_ITL_LOCK0_7	0x00000400	/* - entry 0-7 locked */
+#define MMUCTR_ITL_LOCK0_15	0x00000500	/* - entry 0-15 locked */
+#define MMUCTR_CE		0x00008000	/* cacheable bit enable */
+#define MMUCTR_DRP		0x003f0000	/* data TLB replace pointer */
+#define MMUCTR_DTE		0x00400000	/* data TLB enable */
+#define MMUCTR_DIV		0x00800000	/* data TLB invalidate */
+#define MMUCTR_DTL		0x07000000	/* data TLB lock pointer */
+#define MMUCTR_DTL_NOLOCK	0x00000000	/* - no lock */
+#define MMUCTR_DTL_LOCK0	0x01000000	/* - entry 0 locked */
+#define MMUCTR_DTL_LOCK0_1	0x02000000	/* - entry 0-1 locked */
+#define MMUCTR_DTL_LOCK0_3	0x03000000	/* - entry 0-3 locked */
+#define MMUCTR_DTL_LOCK0_7	0x04000000	/* - entry 0-7 locked */
+#define MMUCTR_DTL_LOCK0_15	0x05000000	/* - entry 0-15 locked */
+#ifdef CONFIG_AM34_2
+#define MMUCTR_WTE		0x80000000	/* write-through cache TLB entry bit enable */
+#endif
+
+#define PIDR			__SYSREG(0xc0000094, u16)	/* PID register */
+#define PIDR_PID		0x00ff		/* process identifier */
+
+#define PTBR			__SYSREG(0xc0000098, unsigned long) /* Page table base register */
+
+#define IPTEL			__SYSREG(0xc00000a0, u32)	/* instruction TLB entry */
+#define DPTEL			__SYSREG(0xc00000b0, u32)	/* data TLB entry */
+#define xPTEL_V			0x00000001	/* TLB entry valid */
+#define xPTEL_UNUSED1		0x00000002	/* unused bit */
+#define xPTEL_UNUSED2		0x00000004	/* unused bit */
+#define xPTEL_C			0x00000008	/* cached if set */
+#define xPTEL_PV		0x00000010	/* page valid */
+#define xPTEL_D			0x00000020	/* dirty */
+#define xPTEL_PR		0x000001c0	/* page protection */
+#define xPTEL_PR_ROK		0x00000000	/* - R/O kernel */
+#define xPTEL_PR_RWK		0x00000100	/* - R/W kernel */
+#define xPTEL_PR_ROK_ROU	0x00000080	/* - R/O kernel and R/O user */
+#define xPTEL_PR_RWK_ROU	0x00000180	/* - R/W kernel and R/O user */
+#define xPTEL_PR_RWK_RWU	0x000001c0	/* - R/W kernel and R/W user */
+#define xPTEL_G			0x00000200	/* global (use PID if 0) */
+#define xPTEL_PS		0x00000c00	/* page size */
+#define xPTEL_PS_4Kb		0x00000000	/* - 4Kb page */
+#define xPTEL_PS_128Kb		0x00000400	/* - 128Kb page */
+#define xPTEL_PS_1Kb		0x00000800	/* - 1Kb page */
+#define xPTEL_PS_4Mb		0x00000c00	/* - 4Mb page */
+#define xPTEL_PPN		0xfffff006	/* physical page number */
+
+#define IPTEU			__SYSREG(0xc00000a4, u32)	/* instruction TLB virtual addr */
+#define DPTEU			__SYSREG(0xc00000b4, u32)	/* data TLB virtual addr */
+#define xPTEU_VPN		0xfffffc00	/* virtual page number */
+#define xPTEU_PID		0x000000ff	/* process identifier to which applicable */
+
+#define IPTEL2			__SYSREG(0xc00000a8, u32)	/* instruction TLB entry */
+#define DPTEL2			__SYSREG(0xc00000b8, u32)	/* data TLB entry */
+#define xPTEL2_V		0x00000001	/* TLB entry valid */
+#define xPTEL2_C		0x00000002	/* cacheable */
+#define xPTEL2_PV		0x00000004	/* page valid */
+#define xPTEL2_D		0x00000008	/* dirty */
+#define xPTEL2_PR		0x00000070	/* page protection */
+#define xPTEL2_PR_ROK		0x00000000	/* - R/O kernel */
+#define xPTEL2_PR_RWK		0x00000040	/* - R/W kernel */
+#define xPTEL2_PR_ROK_ROU	0x00000020	/* - R/O kernel and R/O user */
+#define xPTEL2_PR_RWK_ROU	0x00000060	/* - R/W kernel and R/O user */
+#define xPTEL2_PR_RWK_RWU	0x00000070	/* - R/W kernel and R/W user */
+#define xPTEL2_G		0x00000080	/* global (use PID if 0) */
+#define xPTEL2_PS		0x00000300	/* page size */
+#define xPTEL2_PS_4Kb		0x00000000	/* - 4Kb page */
+#define xPTEL2_PS_128Kb		0x00000100	/* - 128Kb page */
+#define xPTEL2_PS_1Kb		0x00000200	/* - 1Kb page */
+#define xPTEL2_PS_4Mb		0x00000300	/* - 4Mb page */
+#define xPTEL2_CWT		0x00000400	/* cacheable write-through */
+#define xPTEL2_UNUSED1		0x00000800	/* unused bit (broadcast mask) */
+#define xPTEL2_PPN		0xfffff000	/* physical page number */
+
+#define xPTEL2_V_BIT		0	/* bit numbers corresponding to above masks */
+#define xPTEL2_C_BIT		1
+#define xPTEL2_PV_BIT		2
+#define xPTEL2_D_BIT		3
+#define xPTEL2_G_BIT		7
+#define xPTEL2_UNUSED1_BIT	11
+
+#define MMUFCR			__SYSREGC(0xc000009c, u32)	/* MMU exception cause */
+#define MMUFCR_IFC		__SYSREGC(0xc000009c, u16)	/* MMU instruction excep cause */
+#define MMUFCR_DFC		__SYSREGC(0xc000009e, u16)	/* MMU data exception cause */
+#define MMUFCR_xFC_TLBMISS	0x0001		/* TLB miss flag */
+#define MMUFCR_xFC_INITWR	0x0002		/* initial write excep flag */
+#define MMUFCR_xFC_PGINVAL	0x0004		/* page invalid excep flag */
+#define MMUFCR_xFC_PROTVIOL	0x0008		/* protection violation excep flag */
+#define MMUFCR_xFC_ACCESS	0x0010		/* access level flag */
+#define MMUFCR_xFC_ACCESS_USR	0x0000		/* - user mode */
+#define MMUFCR_xFC_ACCESS_SR	0x0010		/* - supervisor mode */
+#define MMUFCR_xFC_TYPE		0x0020		/* access type flag */
+#define MMUFCR_xFC_TYPE_READ	0x0000		/* - read */
+#define MMUFCR_xFC_TYPE_WRITE	0x0020		/* - write */
+#define MMUFCR_xFC_PR		0x01c0		/* page protection flag */
+#define MMUFCR_xFC_PR_ROK	0x0000		/* - R/O kernel */
+#define MMUFCR_xFC_PR_RWK	0x0100		/* - R/W kernel */
+#define MMUFCR_xFC_PR_ROK_ROU	0x0080		/* - R/O kernel and R/O user */
+#define MMUFCR_xFC_PR_RWK_ROU	0x0180		/* - R/W kernel and R/O user */
+#define MMUFCR_xFC_PR_RWK_RWU	0x01c0		/* - R/W kernel and R/W user */
+#define MMUFCR_xFC_ILLADDR	0x0200		/* illegal address excep flag */
+
+#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+/* atomic operation registers */
+#define AAR		__SYSREG(0xc0000a00, u32)	/* cacheable address */
+#define AAR2		__SYSREG(0xc0000a04, u32)	/* uncacheable address */
+#define ADR		__SYSREG(0xc0000a08, u32)	/* data */
+#define ASR		__SYSREG(0xc0000a0c, u32)	/* status */
+#define AARU		__SYSREG(0xd400aa00, u32)	/* user address */
+#define ADRU		__SYSREG(0xd400aa08, u32)	/* user data */
+#define ASRU		__SYSREG(0xd400aa0c, u32)	/* user status */
+
+#define ASR_RW		0x00000008	/* read */
+#define ASR_BW		0x00000004	/* bus error */
+#define ASR_IW		0x00000002	/* interrupt */
+#define ASR_LW		0x00000001	/* bus lock */
+
+#define ASRU_RW		ASR_RW		/* read */
+#define ASRU_BW		ASR_BW		/* bus error */
+#define ASRU_IW		ASR_IW		/* interrupt */
+#define ASRU_LW		ASR_LW		/* bus lock */
+
+/* in inline ASM, we stick the base pointer in to a reg and use offsets from
+ * it */
+#define ATOMIC_OPS_BASE_ADDR 0xc0000a00
+#ifndef __ASSEMBLY__
+asm(
+	"_AAR	= 0\n"
+	"_AAR2	= 4\n"
+	"_ADR	= 8\n"
+	"_ASR	= 12\n");
+#else
+#define _AAR		0
+#define _AAR2		4
+#define _ADR		8
+#define _ASR		12
+#endif
+
+/* physical page address for userspace atomic operations registers */
+#define USER_ATOMIC_OPS_PAGE_ADDR  0xd400a000
+
+#endif /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_CPU_REGS_H */

arch/mn10300/include/asm/current.h

@@ -0,0 +1,37 @@
+/* MN10300 Current task structure accessor
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_CURRENT_H
+#define _ASM_CURRENT_H
+
+#include <linux/thread_info.h>
+
+/*
+ * dedicate E2 to keeping the current task pointer
+ */
+#ifdef CONFIG_MN10300_CURRENT_IN_E2
+
+register struct task_struct *const current asm("e2") __attribute__((used));
+
+#define get_current() current
+
+extern struct task_struct *__current;
+
+#else
+static inline __attribute__((const))
+struct task_struct *get_current(void)
+{
+	return current_thread_info()->task;
+}
+
+#define current get_current()
+#endif
+
+#endif /* _ASM_CURRENT_H */

arch/mn10300/include/asm/debugger.h

@@ -0,0 +1,43 @@
+/* Kernel debugger for MN10300
+ *
+ * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_DEBUGGER_H
+#define _ASM_DEBUGGER_H
+
+#if defined(CONFIG_KERNEL_DEBUGGER)
+
+extern int debugger_intercept(enum exception_code, int, int, struct pt_regs *);
+extern int at_debugger_breakpoint(struct pt_regs *);
+
+#ifndef CONFIG_MN10300_DEBUGGER_CACHE_NO_FLUSH
+extern void debugger_local_cache_flushinv(void);
+extern void debugger_local_cache_flushinv_one(u8 *);
+#else
+static inline void debugger_local_cache_flushinv(void) {}
+static inline void debugger_local_cache_flushinv_one(u8 *addr) {}
+#endif
+
+#else /* CONFIG_KERNEL_DEBUGGER */
+
+static inline int debugger_intercept(enum exception_code excep,
+				     int signo, int si_code,
+				     struct pt_regs *regs)
+{
+	return 0;
+}
+
+static inline int at_debugger_breakpoint(struct pt_regs *regs)
+{
+	return 0;
+}
+
+#endif /* CONFIG_KERNEL_DEBUGGER */
+#endif /* _ASM_DEBUGGER_H */

arch/mn10300/include/asm/delay.h

@@ -0,0 +1,19 @@
+/* MN10300 Uninterruptible delay routines
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_DELAY_H
+#define _ASM_DELAY_H
+
+extern void __udelay(unsigned long usecs);
+extern void __delay(unsigned long loops);
+
+#define udelay(n) __udelay(n)
+
+#endif /* _ASM_DELAY_H */

arch/mn10300/include/asm/device.h

@@ -0,0 +1 @@
+#include <asm-generic/device.h>

arch/mn10300/include/asm/div64.h

@@ -0,0 +1,115 @@
+/* MN10300 64-bit division
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_DIV64
+#define _ASM_DIV64
+
+#include <linux/types.h>
+
+extern void ____unhandled_size_in_do_div___(void);
+
+/*
+ * Beginning with gcc 4.6, the MDR register is represented explicitly.  We
+ * must, therefore, at least explicitly clobber the register when we make
+ * changes to it.  The following assembly fragments *could* be rearranged in
+ * order to leave the moves to/from the MDR register to the compiler, but the
+ * gains would be minimal at best.
+ */
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+# define CLOBBER_MDR_CC		"mdr", "cc"
+#else
+# define CLOBBER_MDR_CC		"cc"
+#endif
+
+/*
+ * divide n by base, leaving the result in n and returning the remainder
+ * - we can do this quite efficiently on the MN10300 by cascading the divides
+ *   through the MDR register
+ */
+#define do_div(n, base)							\
+({									\
+	unsigned __rem = 0;						\
+	if (sizeof(n) <= 4) {						\
+		asm("mov	%1,mdr	\n"				\
+		    "divu	%2,%0	\n"				\
+		    "mov	mdr,%1	\n"				\
+		    : "+r"(n), "=d"(__rem)				\
+		    : "r"(base), "1"(__rem)				\
+		    : CLOBBER_MDR_CC					\
+		    );							\
+	} else if (sizeof(n) <= 8) {					\
+		union {							\
+			unsigned long long l;				\
+			u32 w[2];					\
+		} __quot;						\
+		__quot.l = n;						\
+		asm("mov	%0,mdr	\n"	/* MDR = 0 */		\
+		    "divu	%3,%1	\n"				\
+		    /* __quot.MSL = __div.MSL / base, */		\
+		    /* MDR = MDR:__div.MSL % base */			\
+		    "divu	%3,%2	\n"				\
+		    /* __quot.LSL = MDR:__div.LSL / base, */		\
+		    /* MDR = MDR:__div.LSL % base */			\
+		    "mov	mdr,%0	\n"				\
+		    : "=d"(__rem), "=r"(__quot.w[1]), "=r"(__quot.w[0])	\
+		    : "r"(base), "0"(__rem), "1"(__quot.w[1]),		\
+		      "2"(__quot.w[0])					\
+		    : CLOBBER_MDR_CC					\
+		    );							\
+		n = __quot.l;						\
+	} else {							\
+		____unhandled_size_in_do_div___();			\
+	}								\
+	__rem;								\
+})
+
+/*
+ * do an unsigned 32-bit multiply and divide with intermediate 64-bit product
+ * so as not to lose accuracy
+ * - we use the MDR register to hold the MSW of the product
+ */
+static inline __attribute__((const))
+unsigned __muldiv64u(unsigned val, unsigned mult, unsigned div)
+{
+	unsigned result;
+
+	asm("mulu	%2,%0	\n"	/* MDR:val = val*mult */
+	    "divu	%3,%0	\n"	/* val = MDR:val/div;
+					 * MDR = MDR:val%div */
+	    : "=r"(result)
+	    : "0"(val), "ir"(mult), "r"(div)
+	    : CLOBBER_MDR_CC
+	    );
+
+	return result;
+}
+
+/*
+ * do a signed 32-bit multiply and divide with intermediate 64-bit product so
+ * as not to lose accuracy
+ * - we use the MDR register to hold the MSW of the product
+ */
+static inline __attribute__((const))
+signed __muldiv64s(signed val, signed mult, signed div)
+{
+	signed result;
+
+	asm("mul	%2,%0	\n"	/* MDR:val = val*mult */
+	    "div	%3,%0	\n"	/* val = MDR:val/div;
+					 * MDR = MDR:val%div */
+	    : "=r"(result)
+	    : "0"(val), "ir"(mult), "r"(div)
+	    : CLOBBER_MDR_CC
+	    );
+
+	return result;
+}
+
+#endif /* _ASM_DIV64 */

arch/mn10300/include/asm/dma-mapping.h

@@ -0,0 +1,186 @@
+/* DMA mapping routines for the MN10300 arch
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_DMA_MAPPING_H
+#define _ASM_DMA_MAPPING_H
+
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+
+#include <asm/cache.h>
+#include <asm/io.h>
+
+/*
+ * See Documentation/DMA-API.txt for the description of how the
+ * following DMA API should work.
+ */
+
+extern void *dma_alloc_coherent(struct device *dev, size_t size,
+				dma_addr_t *dma_handle, int flag);
+
+extern void dma_free_coherent(struct device *dev, size_t size,
+			      void *vaddr, dma_addr_t dma_handle);
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent((d), (s), (h), (f))
+#define dma_free_noncoherent(d, s, v, h)  dma_free_coherent((d), (s), (v), (h))
+
+static inline
+dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
+			  enum dma_data_direction direction)
+{
+	BUG_ON(direction == DMA_NONE);
+	mn10300_dcache_flush_inv();
+	return virt_to_bus(ptr);
+}
+
+static inline
+void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+		      enum dma_data_direction direction)
+{
+	BUG_ON(direction == DMA_NONE);
+}
+
+static inline
+int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
+	       enum dma_data_direction direction)
+{
+	struct scatterlist *sg;
+	int i;
+
+	BUG_ON(!valid_dma_direction(direction));
+	WARN_ON(nents == 0 || sglist[0].length == 0);
+
+	for_each_sg(sglist, sg, nents, i) {
+		BUG_ON(!sg_page(sg));
+
+		sg->dma_address = sg_phys(sg);
+	}
+
+	mn10300_dcache_flush_inv();
+	return nents;
+}
+
+static inline
+void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+		  enum dma_data_direction direction)
+{
+	BUG_ON(!valid_dma_direction(direction));
+}
+
+static inline
+dma_addr_t dma_map_page(struct device *dev, struct page *page,
+			unsigned long offset, size_t size,
+			enum dma_data_direction direction)
+{
+	BUG_ON(direction == DMA_NONE);
+	return page_to_bus(page) + offset;
+}
+
+static inline
+void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+		    enum dma_data_direction direction)
+{
+	BUG_ON(direction == DMA_NONE);
+}
+
+static inline
+void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+			     size_t size, enum dma_data_direction direction)
+{
+}
+
+static inline
+void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+				size_t size, enum dma_data_direction direction)
+{
+	mn10300_dcache_flush_inv();
+}
+
+static inline
+void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
+				   unsigned long offset, size_t size,
+				   enum dma_data_direction direction)
+{
+}
+
+static inline void
+dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
+				 unsigned long offset, size_t size,
+				 enum dma_data_direction direction)
+{
+	mn10300_dcache_flush_inv();
+}
+
+
+static inline
+void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+			 int nelems, enum dma_data_direction direction)
+{
+}
+
+static inline
+void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+			    int nelems, enum dma_data_direction direction)
+{
+	mn10300_dcache_flush_inv();
+}
+
+static inline
+int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return 0;
+}
+
+static inline
+int dma_supported(struct device *dev, u64 mask)
+{
+	/*
+	 * we fall back to GFP_DMA when the mask isn't all 1s, so we can't
+	 * guarantee allocations that must be within a tighter range than
+	 * GFP_DMA
+	 */
+	if (mask < 0x00ffffff)
+		return 0;
+	return 1;
+}
+
+static inline
+int dma_set_mask(struct device *dev, u64 mask)
+{
+	if (!dev->dma_mask || !dma_supported(dev, mask))
+		return -EIO;
+
+	*dev->dma_mask = mask;
+	return 0;
+}
+
+static inline
+void dma_cache_sync(void *vaddr, size_t size,
+		    enum dma_data_direction direction)
+{
+	mn10300_dcache_flush_inv();
+}
+
+/* Not supported for now */
+static inline int dma_mmap_coherent(struct device *dev,
+				    struct vm_area_struct *vma, void *cpu_addr,
+				    dma_addr_t dma_addr, size_t size)
+{
+	return -EINVAL;
+}
+
+static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
+				  void *cpu_addr, dma_addr_t dma_addr,
+				  size_t size)
+{
+	return -EINVAL;
+}
+
+#endif

arch/mn10300/include/asm/dma.h

@@ -0,0 +1,117 @@
+/* MN10300 ISA DMA handlers and definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <linux/spinlock.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+
+#undef MAX_DMA_CHANNELS		/* switch off linux/kernel/dma.c */
+#define MAX_DMA_ADDRESS		0xbfffffff
+
+extern spinlock_t dma_spin_lock;
+
+static inline unsigned long claim_dma_lock(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&dma_spin_lock, flags);
+	return flags;
+}
+
+static inline void release_dma_lock(unsigned long flags)
+{
+	spin_unlock_irqrestore(&dma_spin_lock, flags);
+}
+
+/* enable/disable a specific DMA channel */
+static inline void enable_dma(unsigned int dmanr)
+{
+}
+
+static inline void disable_dma(unsigned int dmanr)
+{
+}
+
+/* Clear the 'DMA Pointer Flip Flop'.
+ * Write 0 for LSB/MSB, 1 for MSB/LSB access.
+ * Use this once to initialize the FF to a known state.
+ * After that, keep track of it. :-)
+ * --- In order to do that, the DMA routines below should ---
+ * --- only be used while holding the DMA lock ! ---
+ */
+static inline void clear_dma_ff(unsigned int dmanr)
+{
+}
+
+/* set mode (above) for a specific DMA channel */
+static inline void set_dma_mode(unsigned int dmanr, char mode)
+{
+}
+
+/* Set only the page register bits of the transfer address.
+ * This is used for successive transfers when we know the contents of
+ * the lower 16 bits of the DMA current address register, but a 64k boundary
+ * may have been crossed.
+ */
+static inline void set_dma_page(unsigned int dmanr, char pagenr)
+{
+}
+
+
+/* Set transfer address & page bits for specific DMA channel.
+ * Assumes dma flipflop is clear.
+ */
+static inline void set_dma_addr(unsigned int dmanr, unsigned int a)
+{
+}
+
+
+/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
+ * a specific DMA channel.
+ * You must ensure the parameters are valid.
+ * NOTE: from a manual: "the number of transfers is one more
+ * than the initial word count"! This is taken into account.
+ * Assumes dma flip-flop is clear.
+ * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
+ */
+static inline void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+}
+
+
+/* Get DMA residue count. After a DMA transfer, this
+ * should return zero. Reading this while a DMA transfer is
+ * still in progress will return unpredictable results.
+ * If called before the channel has been used, it may return 1.
+ * Otherwise, it returns the number of _bytes_ left to transfer.
+ *
+ * Assumes DMA flip-flop is clear.
+ */
+static inline int get_dma_residue(unsigned int dmanr)
+{
+	return 0;
+}
+
+
+/* These are in kernel/dma.c: */
+extern int request_dma(unsigned int dmanr, const char *device_id);
+extern void free_dma(unsigned int dmanr);
+
+/* From PCI */
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy 	(0)
+#endif
+
+#endif /* _ASM_DMA_H */

arch/mn10300/include/asm/dmactl-regs.h

@@ -0,0 +1,16 @@
+/* MN10300 on-board DMA controller registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_DMACTL_REGS_H
+#define _ASM_DMACTL_REGS_H
+
+#include <proc/dmactl-regs.h>
+
+#endif /* _ASM_DMACTL_REGS_H */

arch/mn10300/include/asm/elf.h

@@ -0,0 +1,153 @@
+/* MN10300 ELF constant and register definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_ELF_H
+#define _ASM_ELF_H
+
+#include <linux/utsname.h>
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+/*
+ * AM33 relocations
+ */
+#define R_MN10300_NONE		0	/* No reloc.  */
+#define R_MN10300_32		1	/* Direct 32 bit.  */
+#define R_MN10300_16		2	/* Direct 16 bit.  */
+#define R_MN10300_8		3	/* Direct 8 bit.  */
+#define R_MN10300_PCREL32	4	/* PC-relative 32-bit.  */
+#define R_MN10300_PCREL16	5	/* PC-relative 16-bit signed.  */
+#define R_MN10300_PCREL8	6	/* PC-relative 8-bit signed.  */
+#define R_MN10300_24		9	/* Direct 24 bit.  */
+#define R_MN10300_RELATIVE	23	/* Adjust by program base.  */
+#define R_MN10300_SYM_DIFF	33	/* Adjustment when relaxing. */
+#define R_MN10300_ALIGN 	34	/* Alignment requirement. */
+
+/*
+ * AM33/AM34 HW Capabilities
+ */
+#define HWCAP_MN10300_ATOMIC_OP_UNIT	1	/* Has AM34 Atomic Operations */
+
+
+/*
+ * ELF register definitions..
+ */
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG ((sizeof(struct pt_regs) / sizeof(elf_greg_t)) - 1)
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#define ELF_NFPREG 32
+typedef float elf_fpreg_t;
+
+typedef struct {
+	elf_fpreg_t	fpregs[ELF_NFPREG];
+	u_int32_t	fpcr;
+} elf_fpregset_t;
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture
+ */
+#define elf_check_arch(x) \
+	(((x)->e_machine == EM_CYGNUS_MN10300) ||	\
+	 ((x)->e_machine == EM_MN10300))
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#define ELF_DATA	ELFDATA2LSB
+#define ELF_ARCH	EM_MN10300
+
+/*
+ * ELF process initialiser
+ */
+#define ELF_PLAT_INIT(_r, load_addr)					\
+do {									\
+	struct pt_regs *_ur = current->thread.uregs;			\
+	_ur->a3   = 0;	_ur->a2   = 0;	_ur->d3   = 0;	_ur->d2   = 0;	\
+	_ur->mcvf = 0;	_ur->mcrl = 0;	_ur->mcrh = 0;	_ur->mdrq = 0;	\
+	_ur->e1   = 0;	_ur->e0   = 0;	_ur->e7   = 0;	_ur->e6   = 0;	\
+	_ur->e5   = 0;	_ur->e4   = 0;	_ur->e3   = 0;	_ur->e2   = 0;	\
+	_ur->lar  = 0;	_ur->lir  = 0;	_ur->mdr  = 0;			\
+	_ur->a1   = 0;	_ur->a0   = 0;	_ur->d1   = 0;	_ur->d0   = 0;	\
+} while (0)
+
+#define CORE_DUMP_USE_REGSET
+#define ELF_EXEC_PAGESIZE	4096
+
+/*
+ * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+ * use of this is to invoke "./ld.so someprog" to test out a new version of
+ * the loader.  We need to make sure that it is out of the way of the program
+ * that it will "exec", and that there is sufficient room for the brk.
+ * - must clear the VMALLOC area
+ */
+#define ELF_ET_DYN_BASE         0x04000000
+
+/*
+ * regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+ * now struct user_regs, they are different)
+ * - ELF_CORE_COPY_REGS has been guessed, and may be wrong
+ */
+#define ELF_CORE_COPY_REGS(pr_reg, regs)	\
+do {						\
+	pr_reg[0]	= regs->a3;		\
+	pr_reg[1]	= regs->a2;		\
+	pr_reg[2]	= regs->d3;		\
+	pr_reg[3]	= regs->d2;		\
+	pr_reg[4]	= regs->mcvf;		\
+	pr_reg[5]	= regs->mcrl;		\
+	pr_reg[6]	= regs->mcrh;		\
+	pr_reg[7]	= regs->mdrq;		\
+	pr_reg[8]	= regs->e1;		\
+	pr_reg[9]	= regs->e0;		\
+	pr_reg[10]	= regs->e7;		\
+	pr_reg[11]	= regs->e6;		\
+	pr_reg[12]	= regs->e5;		\
+	pr_reg[13]	= regs->e4;		\
+	pr_reg[14]	= regs->e3;		\
+	pr_reg[15]	= regs->e2;		\
+	pr_reg[16]	= regs->sp;		\
+	pr_reg[17]	= regs->lar;		\
+	pr_reg[18]	= regs->lir;		\
+	pr_reg[19]	= regs->mdr;		\
+	pr_reg[20]	= regs->a1;		\
+	pr_reg[21]	= regs->a0;		\
+	pr_reg[22]	= regs->d1;		\
+	pr_reg[23]	= regs->d0;		\
+	pr_reg[24]	= regs->orig_d0;	\
+	pr_reg[25]	= regs->epsw;		\
+	pr_reg[26]	= regs->pc;		\
+} while (0);
+
+/*
+ * This yields a mask that user programs can use to figure out what
+ * instruction set this CPU supports.  This could be done in user space,
+ * but it's not easy, and we've already done it here.
+ */
+#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+#define ELF_HWCAP	(HWCAP_MN10300_ATOMIC_OP_UNIT)
+#else
+#define ELF_HWCAP	(0)
+#endif
+
+/*
+ * This yields a string that ld.so will use to load implementation
+ * specific libraries for optimization.  This is more specific in
+ * intent than poking at uname or /proc/cpuinfo.
+ *
+ * For the moment, we have only optimizations for the Intel generations,
+ * but that could change...
+ */
+#define ELF_PLATFORM  (NULL)
+
+#endif /* _ASM_ELF_H */

arch/mn10300/include/asm/emergency-restart.h

@@ -0,0 +1 @@
+#include <asm-generic/emergency-restart.h>

arch/mn10300/include/asm/exceptions.h

@@ -0,0 +1,121 @@
+/* MN10300 Microcontroller core exceptions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_EXCEPTIONS_H
+#define _ASM_EXCEPTIONS_H
+
+#include <linux/linkage.h>
+
+/*
+ * define the breakpoint instruction opcode to use
+ * - note that the JTAG unit steals 0xFF, so you can't use JTAG and GDBSTUB at
+ *   the same time.
+ */
+#define GDBSTUB_BKPT		0xFF
+
+#ifndef __ASSEMBLY__
+
+/*
+ * enumeration of exception codes (as extracted from TBR MSW)
+ */
+enum exception_code {
+	EXCEP_RESET		= 0x000000,	/* reset */
+
+	/* MMU exceptions */
+	EXCEP_ITLBMISS		= 0x000100,	/* instruction TLB miss */
+	EXCEP_DTLBMISS		= 0x000108,	/* data TLB miss */
+	EXCEP_IAERROR		= 0x000110,	/* instruction address */
+	EXCEP_DAERROR		= 0x000118,	/* data address */
+
+	/* system exceptions */
+	EXCEP_TRAP		= 0x000128,	/* program interrupt (PI instruction) */
+	EXCEP_ISTEP		= 0x000130,	/* single step */
+	EXCEP_IBREAK		= 0x000150,	/* instruction breakpoint */
+	EXCEP_OBREAK		= 0x000158,	/* operand breakpoint */
+	EXCEP_PRIVINS		= 0x000160,	/* privileged instruction execution */
+	EXCEP_UNIMPINS		= 0x000168,	/* unimplemented instruction execution */
+	EXCEP_UNIMPEXINS	= 0x000170,	/* unimplemented extended instruction execution */
+	EXCEP_MEMERR		= 0x000178,	/* illegal memory access */
+	EXCEP_MISALIGN		= 0x000180,	/* misalignment */
+	EXCEP_BUSERROR		= 0x000188,	/* bus error */
+	EXCEP_ILLINSACC		= 0x000190,	/* illegal instruction access */
+	EXCEP_ILLDATACC		= 0x000198,	/* illegal data access */
+	EXCEP_IOINSACC		= 0x0001a0,	/* I/O space instruction access */
+	EXCEP_PRIVINSACC	= 0x0001a8,	/* privileged space instruction access */
+	EXCEP_PRIVDATACC	= 0x0001b0,	/* privileged space data access */
+	EXCEP_DATINSACC		= 0x0001b8,	/* data space instruction access */
+	EXCEP_DOUBLE_FAULT	= 0x000200,	/* double fault */
+
+	/* FPU exceptions */
+	EXCEP_FPU_DISABLED	= 0x0001c0,	/* FPU disabled */
+	EXCEP_FPU_UNIMPINS	= 0x0001c8,	/* FPU unimplemented operation */
+	EXCEP_FPU_OPERATION	= 0x0001d0,	/* FPU operation */
+
+	/* interrupts */
+	EXCEP_WDT		= 0x000240,	/* watchdog timer overflow */
+	EXCEP_NMI		= 0x000248,	/* non-maskable interrupt */
+	EXCEP_IRQ_LEVEL0	= 0x000280,	/* level 0 maskable interrupt */
+	EXCEP_IRQ_LEVEL1	= 0x000288,	/* level 1 maskable interrupt */
+	EXCEP_IRQ_LEVEL2	= 0x000290,	/* level 2 maskable interrupt */
+	EXCEP_IRQ_LEVEL3	= 0x000298,	/* level 3 maskable interrupt */
+	EXCEP_IRQ_LEVEL4	= 0x0002a0,	/* level 4 maskable interrupt */
+	EXCEP_IRQ_LEVEL5	= 0x0002a8,	/* level 5 maskable interrupt */
+	EXCEP_IRQ_LEVEL6	= 0x0002b0,	/* level 6 maskable interrupt */
+
+	/* system calls */
+	EXCEP_SYSCALL0		= 0x000300,	/* system call 0 */
+	EXCEP_SYSCALL1		= 0x000308,	/* system call 1 */
+	EXCEP_SYSCALL2		= 0x000310,	/* system call 2 */
+	EXCEP_SYSCALL3		= 0x000318,	/* system call 3 */
+	EXCEP_SYSCALL4		= 0x000320,	/* system call 4 */
+	EXCEP_SYSCALL5		= 0x000328,	/* system call 5 */
+	EXCEP_SYSCALL6		= 0x000330,	/* system call 6 */
+	EXCEP_SYSCALL7		= 0x000338,	/* system call 7 */
+	EXCEP_SYSCALL8		= 0x000340,	/* system call 8 */
+	EXCEP_SYSCALL9		= 0x000348,	/* system call 9 */
+	EXCEP_SYSCALL10		= 0x000350,	/* system call 10 */
+	EXCEP_SYSCALL11		= 0x000358,	/* system call 11 */
+	EXCEP_SYSCALL12		= 0x000360,	/* system call 12 */
+	EXCEP_SYSCALL13		= 0x000368,	/* system call 13 */
+	EXCEP_SYSCALL14		= 0x000370,	/* system call 14 */
+	EXCEP_SYSCALL15		= 0x000378,	/* system call 15 */
+};
+
+extern void __set_intr_stub(enum exception_code code, void *handler);
+extern void set_intr_stub(enum exception_code code, void *handler);
+
+struct pt_regs;
+
+extern asmlinkage void __common_exception(void);
+extern asmlinkage void itlb_miss(void);
+extern asmlinkage void dtlb_miss(void);
+extern asmlinkage void itlb_aerror(void);
+extern asmlinkage void dtlb_aerror(void);
+extern asmlinkage void raw_bus_error(void);
+extern asmlinkage void double_fault(void);
+extern asmlinkage int  system_call(struct pt_regs *);
+extern asmlinkage void nmi(struct pt_regs *, enum exception_code);
+extern asmlinkage void uninitialised_exception(struct pt_regs *,
+					       enum exception_code);
+extern asmlinkage void irq_handler(void);
+extern asmlinkage void profile_handler(void);
+extern asmlinkage void nmi_handler(void);
+extern asmlinkage void misalignment(struct pt_regs *, enum exception_code);
+
+extern void die(const char *, struct pt_regs *, enum exception_code)
+	__noreturn;
+
+extern int die_if_no_fixup(const char *, struct pt_regs *, enum exception_code);
+
+#define NUM2EXCEP_IRQ_LEVEL(num)	(EXCEP_IRQ_LEVEL0 + (num) * 8)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_EXCEPTIONS_H */

arch/mn10300/include/asm/fb.h

@@ -0,0 +1,23 @@
+/* MN10300 Frame buffer stuff
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_FB_H
+#define _ASM_FB_H
+
+#include <linux/fb.h>
+
+#define fb_pgprotect(...) do {} while (0)
+
+static inline int fb_is_primary_device(struct fb_info *info)
+{
+	return 0;
+}
+
+#endif /* _ASM_FB_H */

arch/mn10300/include/asm/fpu.h

@@ -0,0 +1,134 @@
+/* MN10300 FPU definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ * Derived from include/asm-i386/i387.h: Copyright (C) 1994 Linus Torvalds
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_FPU_H
+#define _ASM_FPU_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/sched.h>
+#include <asm/exceptions.h>
+#include <asm/sigcontext.h>
+
+#ifdef __KERNEL__
+
+extern asmlinkage void fpu_disabled(void);
+
+#ifdef CONFIG_FPU
+
+#ifdef CONFIG_LAZY_SAVE_FPU
+/* the task that currently owns the FPU state */
+extern struct task_struct *fpu_state_owner;
+#endif
+
+#if (THREAD_USING_FPU & ~0xff)
+#error THREAD_USING_FPU must be smaller than 0x100.
+#endif
+
+static inline void set_using_fpu(struct task_struct *tsk)
+{
+	asm volatile(
+		"bset %0,(0,%1)"
+		:
+		: "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags)
+		: "memory", "cc");
+}
+
+static inline void clear_using_fpu(struct task_struct *tsk)
+{
+	asm volatile(
+		"bclr %0,(0,%1)"
+		:
+		: "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags)
+		: "memory", "cc");
+}
+
+#define is_using_fpu(tsk) ((tsk)->thread.fpu_flags & THREAD_USING_FPU)
+
+extern asmlinkage void fpu_kill_state(struct task_struct *);
+extern asmlinkage void fpu_exception(struct pt_regs *, enum exception_code);
+extern asmlinkage void fpu_init_state(void);
+extern asmlinkage void fpu_save(struct fpu_state_struct *);
+extern int fpu_setup_sigcontext(struct fpucontext *buf);
+extern int fpu_restore_sigcontext(struct fpucontext *buf);
+
+static inline void unlazy_fpu(struct task_struct *tsk)
+{
+	preempt_disable();
+#ifndef CONFIG_LAZY_SAVE_FPU
+	if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
+		fpu_save(&tsk->thread.fpu_state);
+		tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
+		tsk->thread.uregs->epsw &= ~EPSW_FE;
+	}
+#else
+	if (fpu_state_owner == tsk)
+		fpu_save(&tsk->thread.fpu_state);
+#endif
+	preempt_enable();
+}
+
+static inline void exit_fpu(void)
+{
+#ifdef CONFIG_LAZY_SAVE_FPU
+	struct task_struct *tsk = current;
+
+	preempt_disable();
+	if (fpu_state_owner == tsk)
+		fpu_state_owner = NULL;
+	preempt_enable();
+#endif
+}
+
+static inline void flush_fpu(void)
+{
+	struct task_struct *tsk = current;
+
+	preempt_disable();
+#ifndef CONFIG_LAZY_SAVE_FPU
+	if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
+		tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
+		tsk->thread.uregs->epsw &= ~EPSW_FE;
+	}
+#else
+	if (fpu_state_owner == tsk) {
+		fpu_state_owner = NULL;
+		tsk->thread.uregs->epsw &= ~EPSW_FE;
+	}
+#endif
+	preempt_enable();
+	clear_using_fpu(tsk);
+}
+
+#else /* CONFIG_FPU */
+
+extern asmlinkage
+void unexpected_fpu_exception(struct pt_regs *, enum exception_code);
+#define fpu_exception unexpected_fpu_exception
+
+struct task_struct;
+struct fpu_state_struct;
+static inline bool is_using_fpu(struct task_struct *tsk) { return false; }
+static inline void set_using_fpu(struct task_struct *tsk) {}
+static inline void clear_using_fpu(struct task_struct *tsk) {}
+static inline void fpu_init_state(void) {}
+static inline void fpu_save(struct fpu_state_struct *s) {}
+static inline void fpu_kill_state(struct task_struct *tsk) {}
+static inline void unlazy_fpu(struct task_struct *tsk) {}
+static inline void exit_fpu(void) {}
+static inline void flush_fpu(void) {}
+static inline int fpu_setup_sigcontext(struct fpucontext *buf) { return 0; }
+static inline int fpu_restore_sigcontext(struct fpucontext *buf) { return 0; }
+#endif /* CONFIG_FPU  */
+
+#endif /* __KERNEL__ */
+#endif /* !__ASSEMBLY__ */
+#endif /* _ASM_FPU_H */

arch/mn10300/include/asm/frame.inc

@@ -0,0 +1,97 @@
+/* MN10300 Microcontroller core system register definitions -*- asm -*-
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_FRAME_INC
+#define _ASM_FRAME_INC
+
+#ifndef __ASSEMBLY__
+#error not for use in C files
+#endif
+
+#ifndef __ASM_OFFSETS_H__
+#include <asm/asm-offsets.h>
+#endif
+#include <asm/thread_info.h>
+
+#define pi break
+
+#define fp a3
+
+###############################################################################
+#
+# build a stack frame from the registers
+# - the caller has subtracted 4 from SP before coming here
+#
+###############################################################################
+.macro SAVE_ALL
+	add	-4,sp				# next exception frame ptr save area
+	movm	[other],(sp)
+	mov	usp,a1
+	mov	a1,(sp)				# USP in MOVM[other] dummy slot
+	movm	[d2,d3,a2,a3,exreg0,exreg1,exother],(sp)
+	mov	sp,fp				# FRAME pointer in A3
+	add	-12,sp				# allow for calls to be made
+
+	# push the exception frame onto the front of the list
+	GET_THREAD_INFO a1
+	mov	(TI_frame,a1),a0
+	mov	a0,(REG_NEXT,fp)
+	mov	fp,(TI_frame,a1)
+
+	# disable the FPU inside the kernel
+	and	~EPSW_FE,epsw
+
+	# we may be holding current in E2
+#ifdef CONFIG_MN10300_CURRENT_IN_E2
+	mov	(__current),e2
+#endif
+.endm
+
+###############################################################################
+#
+# restore the registers from a stack frame
+#
+###############################################################################
+.macro RESTORE_ALL
+	# peel back the stack to the calling frame
+	# - we need that when returning from interrupts to kernel mode
+	GET_THREAD_INFO a0
+	mov	(TI_frame,a0),fp
+	mov	fp,sp
+	mov	(REG_NEXT,fp),d0
+	mov	d0,(TI_frame,a0)                # userspace has regs->next == 0
+
+#ifndef CONFIG_MN10300_USING_JTAG
+	mov	(REG_EPSW,fp),d0
+	btst	EPSW_T,d0
+	beq	99f
+
+	or	EPSW_NMID,epsw
+	movhu	(DCR),d1
+	or	0x0001, d1
+	movhu	d1,(DCR)
+
+99:
+#endif
+	movm	(sp),[d2,d3,a2,a3,exreg0,exreg1,exother]
+
+	# must restore usp even if returning to kernel space,
+	# when CONFIG_PREEMPT is enabled.
+	mov	(sp),a1				# USP in MOVM[other] dummy slot
+	mov	a1,usp
+
+	movm	(sp),[other]
+	add	8,sp
+	rti
+
+.endm
+
+
+#endif /* _ASM_FRAME_INC */

arch/mn10300/include/asm/ftrace.h

@@ -0,0 +1 @@
+/* empty */

arch/mn10300/include/asm/futex.h

@@ -0,0 +1 @@
+#include <asm-generic/futex.h>

arch/mn10300/include/asm/gdb-stub.h

@@ -0,0 +1,182 @@
+/* MN10300 Kernel GDB stub definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ * - Derived from asm-mips/gdb-stub.h (c) 1995 Andreas Busse
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_GDB_STUB_H
+#define _ASM_GDB_STUB_H
+
+#include <asm/exceptions.h>
+
+/*
+ * register ID numbers in GDB remote protocol
+ */
+
+#define GDB_REGID_PC		9
+#define GDB_REGID_FP		7
+#define GDB_REGID_SP		8
+
+/*
+ * virtual stack layout for the GDB exception handler
+ */
+#define NUMREGS			64
+
+#define GDB_FR_D0		(0 * 4)
+#define GDB_FR_D1		(1 * 4)
+#define GDB_FR_D2		(2 * 4)
+#define GDB_FR_D3		(3 * 4)
+#define GDB_FR_A0		(4 * 4)
+#define GDB_FR_A1		(5 * 4)
+#define GDB_FR_A2		(6 * 4)
+#define GDB_FR_A3		(7 * 4)
+
+#define GDB_FR_SP		(8 * 4)
+#define GDB_FR_PC		(9 * 4)
+#define GDB_FR_MDR		(10 * 4)
+#define GDB_FR_EPSW		(11 * 4)
+#define GDB_FR_LIR		(12 * 4)
+#define GDB_FR_LAR		(13 * 4)
+#define GDB_FR_MDRQ		(14 * 4)
+
+#define GDB_FR_E0		(15 * 4)
+#define GDB_FR_E1		(16 * 4)
+#define GDB_FR_E2		(17 * 4)
+#define GDB_FR_E3		(18 * 4)
+#define GDB_FR_E4		(19 * 4)
+#define GDB_FR_E5		(20 * 4)
+#define GDB_FR_E6		(21 * 4)
+#define GDB_FR_E7		(22 * 4)
+
+#define GDB_FR_SSP		(23 * 4)
+#define GDB_FR_MSP		(24 * 4)
+#define GDB_FR_USP		(25 * 4)
+#define GDB_FR_MCRH		(26 * 4)
+#define GDB_FR_MCRL		(27 * 4)
+#define GDB_FR_MCVF		(28 * 4)
+
+#define GDB_FR_FPCR		(29 * 4)
+#define GDB_FR_DUMMY0		(30 * 4)
+#define GDB_FR_DUMMY1		(31 * 4)
+
+#define GDB_FR_FS0		(32 * 4)
+
+#define GDB_FR_SIZE		(NUMREGS * 4)
+
+#ifndef __ASSEMBLY__
+
+/*
+ * This is the same as above, but for the high-level
+ * part of the GDB stub.
+ */
+
+struct gdb_regs {
+	/* saved main processor registers */
+	u32	d0, d1, d2, d3, a0, a1, a2, a3;
+	u32	sp, pc, mdr, epsw, lir, lar, mdrq;
+	u32	e0, e1, e2, e3, e4, e5, e6, e7;
+	u32	ssp, msp, usp, mcrh, mcrl, mcvf;
+
+	/* saved floating point registers */
+	u32	fpcr, _dummy0, _dummy1;
+	u32	fs0,  fs1,  fs2,  fs3,  fs4,  fs5,  fs6,  fs7;
+	u32	fs8,  fs9,  fs10, fs11, fs12, fs13, fs14, fs15;
+	u32	fs16, fs17, fs18, fs19, fs20, fs21, fs22, fs23;
+	u32	fs24, fs25, fs26, fs27, fs28, fs29, fs30, fs31;
+};
+
+/*
+ * Prototypes
+ */
+extern void show_registers_only(struct pt_regs *regs);
+
+extern asmlinkage void gdbstub_init(void);
+extern asmlinkage void gdbstub_exit(int status);
+extern asmlinkage void gdbstub_io_init(void);
+extern asmlinkage void gdbstub_io_set_baud(unsigned baud);
+extern asmlinkage int  gdbstub_io_rx_char(unsigned char *_ch, int nonblock);
+extern asmlinkage void gdbstub_io_tx_char(unsigned char ch);
+extern asmlinkage void gdbstub_io_tx_flush(void);
+
+extern asmlinkage void gdbstub_io_rx_handler(void);
+extern asmlinkage void gdbstub_rx_irq(struct pt_regs *, enum exception_code);
+extern asmlinkage int  gdbstub_intercept(struct pt_regs *, enum exception_code);
+extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code);
+extern asmlinkage void __gdbstub_bug_trap(void);
+extern asmlinkage void __gdbstub_pause(void);
+
+#ifdef CONFIG_MN10300_CACHE_ENABLED
+extern asmlinkage void gdbstub_purge_cache(void);
+#else
+#define gdbstub_purge_cache()	do {} while (0)
+#endif
+
+/* Used to prevent crashes in memory access */
+extern asmlinkage int  gdbstub_read_byte(const u8 *, u8 *);
+extern asmlinkage int  gdbstub_read_word(const u8 *, u8 *);
+extern asmlinkage int  gdbstub_read_dword(const u8 *, u8 *);
+extern asmlinkage int  gdbstub_write_byte(u32, u8 *);
+extern asmlinkage int  gdbstub_write_word(u32, u8 *);
+extern asmlinkage int  gdbstub_write_dword(u32, u8 *);
+
+extern asmlinkage void gdbstub_read_byte_guard(void);
+extern asmlinkage void gdbstub_read_byte_cont(void);
+extern asmlinkage void gdbstub_read_word_guard(void);
+extern asmlinkage void gdbstub_read_word_cont(void);
+extern asmlinkage void gdbstub_read_dword_guard(void);
+extern asmlinkage void gdbstub_read_dword_cont(void);
+extern asmlinkage void gdbstub_write_byte_guard(void);
+extern asmlinkage void gdbstub_write_byte_cont(void);
+extern asmlinkage void gdbstub_write_word_guard(void);
+extern asmlinkage void gdbstub_write_word_cont(void);
+extern asmlinkage void gdbstub_write_dword_guard(void);
+extern asmlinkage void gdbstub_write_dword_cont(void);
+
+extern u8	gdbstub_rx_buffer[PAGE_SIZE];
+extern u32	gdbstub_rx_inp;
+extern u32	gdbstub_rx_outp;
+extern u8	gdbstub_rx_overflow;
+extern u8	gdbstub_busy;
+extern u8	gdbstub_rx_unget;
+
+#ifdef CONFIG_GDBSTUB_DEBUGGING
+extern void gdbstub_printk(const char *fmt, ...)
+	__attribute__((format(printf, 1, 2)));
+#else
+static inline __attribute__((format(printf, 1, 2)))
+void gdbstub_printk(const char *fmt, ...)
+{
+}
+#endif
+
+#ifdef CONFIG_GDBSTUB_DEBUG_ENTRY
+#define gdbstub_entry(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
+#else
+#define gdbstub_entry(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
+#endif
+
+#ifdef CONFIG_GDBSTUB_DEBUG_PROTOCOL
+#define gdbstub_proto(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
+#else
+#define gdbstub_proto(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
+#endif
+
+#ifdef CONFIG_GDBSTUB_DEBUG_IO
+#define gdbstub_io(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
+#else
+#define gdbstub_io(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
+#endif
+
+#ifdef CONFIG_GDBSTUB_DEBUG_BREAKPOINT
+#define gdbstub_bkpt(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
+#else
+#define gdbstub_bkpt(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
+#endif
+
+#endif /* !__ASSEMBLY__ */
+#endif /* _ASM_GDB_STUB_H */

arch/mn10300/include/asm/hardirq.h

@@ -0,0 +1,49 @@
+/* MN10300 Hardware IRQ statistics and management
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Modified by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_HARDIRQ_H
+#define _ASM_HARDIRQ_H
+
+#include <linux/threads.h>
+#include <linux/irq.h>
+#include <asm/exceptions.h>
+
+/* assembly code in softirq.h is sensitive to the offsets of these fields */
+typedef struct {
+	unsigned int	__softirq_pending;
+#ifdef CONFIG_MN10300_WD_TIMER
+	unsigned int	__nmi_count;	/* arch dependent */
+	unsigned int	__irq_count;	/* arch dependent */
+#endif
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
+
+extern void ack_bad_irq(int irq);
+
+/*
+ * manipulate stubs in the MN10300 CPU Trap/Interrupt Vector table
+ * - these should jump to __common_exception in entry.S unless there's a good
+ *   reason to do otherwise (see trap_preinit() in traps.c)
+ */
+typedef void (*intr_stub_fnx)(struct pt_regs *regs,
+			      enum exception_code intcode);
+
+/*
+ * manipulate pointers in the Exception table (see entry.S)
+ * - these are indexed by decoding the lower 24 bits of the TBR register
+ * - note that the MN103E010 doesn't always trap through the correct vector,
+ *   but does always set the TBR correctly
+ */
+extern asmlinkage void set_excp_vector(enum exception_code code,
+				       intr_stub_fnx handler);
+
+#endif /* _ASM_HARDIRQ_H */

arch/mn10300/include/asm/highmem.h

@@ -0,0 +1,128 @@
+/* MN10300 Virtual kernel memory mappings for high memory
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ * - Derived from include/asm-i386/highmem.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_HIGHMEM_H
+#define _ASM_HIGHMEM_H
+
+#ifdef __KERNEL__
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/highmem.h>
+#include <asm/kmap_types.h>
+#include <asm/pgtable.h>
+
+/* undef for production */
+#undef HIGHMEM_DEBUG
+
+/* declarations for highmem.c */
+extern unsigned long highstart_pfn, highend_pfn;
+
+extern pte_t *kmap_pte;
+extern pgprot_t kmap_prot;
+extern pte_t *pkmap_page_table;
+
+extern void __init kmap_init(void);
+
+/*
+ * Right now we initialize only a single pte table. It can be extended
+ * easily, subsequent pte tables have to be allocated in one physical
+ * chunk of RAM.
+ */
+#define PKMAP_BASE	0xfe000000UL
+#define LAST_PKMAP	1024
+#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
+#define PKMAP_NR(virt)  ((virt - PKMAP_BASE) >> PAGE_SHIFT)
+#define PKMAP_ADDR(nr)  (PKMAP_BASE + ((nr) << PAGE_SHIFT))
+
+extern unsigned long kmap_high(struct page *page);
+extern void kunmap_high(struct page *page);
+
+static inline unsigned long kmap(struct page *page)
+{
+	if (in_interrupt())
+		BUG();
+	if (page < highmem_start_page)
+		return page_address(page);
+	return kmap_high(page);
+}
+
+static inline void kunmap(struct page *page)
+{
+	if (in_interrupt())
+		BUG();
+	if (page < highmem_start_page)
+		return;
+	kunmap_high(page);
+}
+
+/*
+ * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap
+ * gives a more generic (and caching) interface. But kmap_atomic can
+ * be used in IRQ contexts, so in some (very limited) cases we need
+ * it.
+ */
+static inline void *kmap_atomic(struct page *page)
+{
+	unsigned long vaddr;
+	int idx, type;
+
+	pagefault_disable();
+	if (page < highmem_start_page)
+		return page_address(page);
+
+	type = kmap_atomic_idx_push();
+	idx = type + KM_TYPE_NR * smp_processor_id();
+	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+#if HIGHMEM_DEBUG
+	if (!pte_none(*(kmap_pte - idx)))
+		BUG();
+#endif
+	set_pte(kmap_pte - idx, mk_pte(page, kmap_prot));
+	local_flush_tlb_one(vaddr);
+
+	return (void *)vaddr;
+}
+
+static inline void __kunmap_atomic(unsigned long vaddr)
+{
+	int type;
+
+	if (vaddr < FIXADDR_START) { /* FIXME */
+		pagefault_enable();
+		return;
+	}
+
+	type = kmap_atomic_idx();
+
+#if HIGHMEM_DEBUG
+	{
+		unsigned int idx;
+		idx = type + KM_TYPE_NR * smp_processor_id();
+
+		if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
+			BUG();
+
+		/*
+		 * force other mappings to Oops if they'll try to access
+		 * this pte without first remap it
+		 */
+		pte_clear(kmap_pte - idx);
+		local_flush_tlb_one(vaddr);
+	}
+#endif
+
+	kmap_atomic_idx_pop();
+	pagefault_enable();
+}
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_HIGHMEM_H */

arch/mn10300/include/asm/hw_irq.h

@@ -0,0 +1,14 @@
+/* MN10300 Hardware interrupt definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_HW_IRQ_H
+#define _ASM_HW_IRQ_H
+
+#endif /* _ASM_HW_IRQ_H */

arch/mn10300/include/asm/intctl-regs.h

@@ -0,0 +1,71 @@
+/* MN10300 On-board interrupt controller registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_INTCTL_REGS_H
+#define _ASM_INTCTL_REGS_H
+
+#include <asm/cpu-regs.h>
+
+#ifdef __KERNEL__
+
+/*
+ * Interrupt controller registers
+ * - Registers 64-191 are at addresses offset from the main array
+ */
+#define GxICR(X)						\
+	__SYSREG(0xd4000000 + (X) * 4 +				\
+		 (((X) >= 64) && ((X) < 192)) * 0xf00, u16)
+
+#define GxICR_u8(X)							\
+	__SYSREG(0xd4000000 + (X) * 4 +					\
+		 (((X) >= 64) && ((X) < 192)) * 0xf00, u8)
+
+#include <proc/intctl-regs.h>
+
+#define XIRQ_TRIGGER_LOWLEVEL	0
+#define XIRQ_TRIGGER_HILEVEL	1
+#define XIRQ_TRIGGER_NEGEDGE	2
+#define XIRQ_TRIGGER_POSEDGE	3
+
+/* non-maskable interrupt control */
+#define NMIIRQ			0
+#define NMICR			GxICR(NMIIRQ)	/* NMI control register */
+#define NMICR_NMIF		0x0001		/* NMI pin interrupt flag */
+#define NMICR_WDIF		0x0002		/* watchdog timer overflow flag */
+#define NMICR_ABUSERR		0x0008		/* async bus error flag */
+
+/* maskable interrupt control */
+#define GxICR_DETECT		0x0001		/* interrupt detect flag */
+#define GxICR_REQUEST		0x0010		/* interrupt request flag */
+#define GxICR_ENABLE		0x0100		/* interrupt enable flag */
+#define GxICR_LEVEL		0x7000		/* interrupt priority level */
+#define GxICR_LEVEL_0		0x0000		/* - level 0 */
+#define GxICR_LEVEL_1		0x1000		/* - level 1 */
+#define GxICR_LEVEL_2		0x2000		/* - level 2 */
+#define GxICR_LEVEL_3		0x3000		/* - level 3 */
+#define GxICR_LEVEL_4		0x4000		/* - level 4 */
+#define GxICR_LEVEL_5		0x5000		/* - level 5 */
+#define GxICR_LEVEL_6		0x6000		/* - level 6 */
+#define GxICR_LEVEL_SHIFT	12
+#define GxICR_NMI		0x8000		/* nmi request flag */
+
+#define NUM2GxICR_LEVEL(num)	((num) << GxICR_LEVEL_SHIFT)
+
+#ifndef __ASSEMBLY__
+extern void set_intr_level(int irq, u16 level);
+extern void mn10300_set_lateack_irq_type(int irq);
+#endif
+
+/* external interrupts */
+#define XIRQxICR(X)		GxICR((X))	/* external interrupt control regs */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_INTCTL_REGS_H */

arch/mn10300/include/asm/io.h

@@ -0,0 +1,314 @@
+/* MN10300 I/O port emulation and memory-mapped I/O
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_IO_H
+#define _ASM_IO_H
+
+#include <asm/page.h> /* I/O is all done through memory accesses */
+#include <asm/cpu-regs.h>
+#include <asm/cacheflush.h>
+#include <asm-generic/pci_iomap.h>
+
+#define mmiowb() do {} while (0)
+
+/*****************************************************************************/
+/*
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the x86 architecture, we just read/write the
+ * memory location directly.
+ */
+static inline u8 readb(const volatile void __iomem *addr)
+{
+	return *(const volatile u8 *) addr;
+}
+
+static inline u16 readw(const volatile void __iomem *addr)
+{
+	return *(const volatile u16 *) addr;
+}
+
+static inline u32 readl(const volatile void __iomem *addr)
+{
+	return *(const volatile u32 *) addr;
+}
+
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+
+#define readb_relaxed readb
+#define readw_relaxed readw
+#define readl_relaxed readl
+
+static inline void writeb(u8 b, volatile void __iomem *addr)
+{
+	*(volatile u8 *) addr = b;
+}
+
+static inline void writew(u16 b, volatile void __iomem *addr)
+{
+	*(volatile u16 *) addr = b;
+}
+
+static inline void writel(u32 b, volatile void __iomem *addr)
+{
+	*(volatile u32 *) addr = b;
+}
+
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+/*****************************************************************************/
+/*
+ * traditional input/output functions
+ */
+static inline u8 inb_local(unsigned long addr)
+{
+	return readb((volatile void __iomem *) addr);
+}
+
+static inline void outb_local(u8 b, unsigned long addr)
+{
+	return writeb(b, (volatile void __iomem *) addr);
+}
+
+static inline u8 inb(unsigned long addr)
+{
+	return readb((volatile void __iomem *) addr);
+}
+
+static inline u16 inw(unsigned long addr)
+{
+	return readw((volatile void __iomem *) addr);
+}
+
+static inline u32 inl(unsigned long addr)
+{
+	return readl((volatile void __iomem *) addr);
+}
+
+static inline void outb(u8 b, unsigned long addr)
+{
+	return writeb(b, (volatile void __iomem *) addr);
+}
+
+static inline void outw(u16 b, unsigned long addr)
+{
+	return writew(b, (volatile void __iomem *) addr);
+}
+
+static inline void outl(u32 b, unsigned long addr)
+{
+	return writel(b, (volatile void __iomem *) addr);
+}
+
+#define inb_p(addr)	inb(addr)
+#define inw_p(addr)	inw(addr)
+#define inl_p(addr)	inl(addr)
+#define outb_p(x, addr)	outb((x), (addr))
+#define outw_p(x, addr)	outw((x), (addr))
+#define outl_p(x, addr)	outl((x), (addr))
+
+static inline void insb(unsigned long addr, void *buffer, int count)
+{
+	if (count) {
+		u8 *buf = buffer;
+		do {
+			u8 x = inb(addr);
+			*buf++ = x;
+		} while (--count);
+	}
+}
+
+static inline void insw(unsigned long addr, void *buffer, int count)
+{
+	if (count) {
+		u16 *buf = buffer;
+		do {
+			u16 x = inw(addr);
+			*buf++ = x;
+		} while (--count);
+	}
+}
+
+static inline void insl(unsigned long addr, void *buffer, int count)
+{
+	if (count) {
+		u32 *buf = buffer;
+		do {
+			u32 x = inl(addr);
+			*buf++ = x;
+		} while (--count);
+	}
+}
+
+static inline void outsb(unsigned long addr, const void *buffer, int count)
+{
+	if (count) {
+		const u8 *buf = buffer;
+		do {
+			outb(*buf++, addr);
+		} while (--count);
+	}
+}
+
+static inline void outsw(unsigned long addr, const void *buffer, int count)
+{
+	if (count) {
+		const u16 *buf = buffer;
+		do {
+			outw(*buf++, addr);
+		} while (--count);
+	}
+}
+
+extern void __outsl(unsigned long addr, const void *buffer, int count);
+static inline void outsl(unsigned long addr, const void *buffer, int count)
+{
+	if ((unsigned long) buffer & 0x3)
+		return __outsl(addr, buffer, count);
+
+	if (count) {
+		const u32 *buf = buffer;
+		do {
+			outl(*buf++, addr);
+		} while (--count);
+	}
+}
+
+#define ioread8(addr)		readb(addr)
+#define ioread16(addr)		readw(addr)
+#define ioread32(addr)		readl(addr)
+
+#define iowrite8(v, addr)	writeb((v), (addr))
+#define iowrite16(v, addr)	writew((v), (addr))
+#define iowrite32(v, addr)	writel((v), (addr))
+
+#define ioread8_rep(p, dst, count) \
+	insb((unsigned long) (p), (dst), (count))
+#define ioread16_rep(p, dst, count) \
+	insw((unsigned long) (p), (dst), (count))
+#define ioread32_rep(p, dst, count) \
+	insl((unsigned long) (p), (dst), (count))
+
+#define iowrite8_rep(p, src, count) \
+	outsb((unsigned long) (p), (src), (count))
+#define iowrite16_rep(p, src, count) \
+	outsw((unsigned long) (p), (src), (count))
+#define iowrite32_rep(p, src, count) \
+	outsl((unsigned long) (p), (src), (count))
+
+#define readsb(p, dst, count) \
+	insb((unsigned long) (p), (dst), (count))
+#define readsw(p, dst, count) \
+	insw((unsigned long) (p), (dst), (count))
+#define readsl(p, dst, count) \
+	insl((unsigned long) (p), (dst), (count))
+
+#define writesb(p, src, count) \
+	outsb((unsigned long) (p), (src), (count))
+#define writesw(p, src, count) \
+	outsw((unsigned long) (p), (src), (count))
+#define writesl(p, src, count) \
+	outsl((unsigned long) (p), (src), (count))
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#ifdef __KERNEL__
+
+#include <linux/vmalloc.h>
+#define __io_virt(x) ((void *) (x))
+
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+struct pci_dev;
+static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
+{
+}
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ * These are pretty trivial
+ */
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+	return __pa(address);
+}
+
+static inline void *phys_to_virt(unsigned long address)
+{
+	return __va(address);
+}
+
+/*
+ * Change "struct page" to physical address.
+ */
+static inline void __iomem *__ioremap(unsigned long offset, unsigned long size,
+				      unsigned long flags)
+{
+	return (void __iomem *) offset;
+}
+
+static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
+{
+	return (void __iomem *)(offset & ~0x20000000);
+}
+
+/*
+ * This one maps high address device memory and turns off caching for that
+ * area.  it's useful if some control registers are in such an area and write
+ * combining or read caching is not desirable:
+ */
+static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long size)
+{
+	return (void __iomem *) (offset | 0x20000000);
+}
+
+#define ioremap_wc ioremap_nocache
+
+static inline void iounmap(void __iomem *addr)
+{
+}
+
+static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+	return (void __iomem *) port;
+}
+
+static inline void ioport_unmap(void __iomem *p)
+{
+}
+
+#define xlate_dev_kmem_ptr(p)	((void *) (p))
+#define xlate_dev_mem_ptr(p)	((void *) (p))
+
+/*
+ * PCI bus iomem addresses must be in the region 0x80000000-0x9fffffff
+ */
+static inline unsigned long virt_to_bus(volatile void *address)
+{
+	return ((unsigned long) address) & ~0x20000000;
+}
+
+static inline void *bus_to_virt(unsigned long address)
+{
+	return (void *) address;
+}
+
+#define page_to_bus page_to_phys
+
+#define memset_io(a, b, c)	memset(__io_virt(a), (b), (c))
+#define memcpy_fromio(a, b, c)	memcpy((a), __io_virt(b), (c))
+#define memcpy_toio(a, b, c)	memcpy(__io_virt(a), (b), (c))
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_IO_H */

arch/mn10300/include/asm/irq.h

@@ -0,0 +1,40 @@
+/* MN10300 Hardware interrupt definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Modified by David Howells (dhowells@redhat.com)
+ * - Derived from include/asm-i386/irq.h:
+ *   - (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_IRQ_H
+#define _ASM_IRQ_H
+
+#include <asm/intctl-regs.h>
+#include <asm/reset-regs.h>
+#include <proc/irq.h>
+
+/* this number is used when no interrupt has been assigned */
+#define NO_IRQ		INT_MAX
+
+/*
+ * hardware irq numbers
+ * - the ASB2364 has an FPGA with an IRQ multiplexer on it
+ */
+#ifdef CONFIG_MN10300_UNIT_ASB2364
+#include <unit/irq.h>
+#else
+#define NR_CPU_IRQS	GxICR_NUM_IRQS
+#define NR_IRQS		NR_CPU_IRQS
+#endif
+
+/* external hardware irq numbers */
+#define NR_XIRQS	GxICR_NUM_XIRQS
+
+#define irq_canonicalize(IRQ) (IRQ)
+
+#endif /* _ASM_IRQ_H */

arch/mn10300/include/asm/irq_regs.h

@@ -0,0 +1,28 @@
+/* MN10300 IRQ registers pointer definition
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_IRQ_REGS_H
+#define _ASM_IRQ_REGS_H
+
+/*
+ * Per-cpu current frame pointer - the location of the last exception frame on
+ * the stack
+ */
+#define ARCH_HAS_OWN_IRQ_REGS
+
+#ifndef __ASSEMBLY__
+static inline __attribute__((const))
+struct pt_regs *get_irq_regs(void)
+{
+	return current_frame();
+}
+#endif
+
+#endif /* _ASM_IRQ_REGS_H */

arch/mn10300/include/asm/irqflags.h

@@ -0,0 +1,215 @@
+/* MN10300 IRQ flag handling
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#include <asm/cpu-regs.h>
+/* linux/smp.h <- linux/irqflags.h needs asm/smp.h first */
+#include <asm/smp.h>
+
+/*
+ * interrupt control
+ * - "disabled": run in IM1/2
+ *   - level 0 - kernel debugger
+ *   - level 1 - virtual serial DMA (if present)
+ *   - level 5 - normal interrupt priority
+ *   - level 6 - timer interrupt
+ * - "enabled":  run in IM7
+ */
+#define MN10300_CLI_LEVEL	(CONFIG_LINUX_CLI_LEVEL << EPSW_IM_SHIFT)
+
+#ifndef __ASSEMBLY__
+
+static inline unsigned long arch_local_save_flags(void)
+{
+	unsigned long flags;
+
+	asm volatile("mov epsw,%0" : "=d"(flags));
+	return flags;
+}
+
+static inline void arch_local_irq_disable(void)
+{
+	asm volatile(
+		"	and %0,epsw	\n"
+		"	or %1,epsw	\n"
+		"	nop		\n"
+		"	nop		\n"
+		"	nop		\n"
+		:
+		: "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL)
+		: "memory");
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+	unsigned long flags;
+
+	flags = arch_local_save_flags();
+	arch_local_irq_disable();
+	return flags;
+}
+
+/*
+ * we make sure arch_irq_enable() doesn't cause priority inversion
+ */
+extern unsigned long __mn10300_irq_enabled_epsw[];
+
+static inline void arch_local_irq_enable(void)
+{
+	unsigned long tmp;
+	int cpu = raw_smp_processor_id();
+
+	asm volatile(
+		"	mov	epsw,%0		\n"
+		"	and	%1,%0		\n"
+		"	or	%2,%0		\n"
+		"	mov	%0,epsw		\n"
+		: "=&d"(tmp)
+		: "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw[cpu])
+		: "memory", "cc");
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+	asm volatile(
+		"	mov %0,epsw	\n"
+		"	nop		\n"
+		"	nop		\n"
+		"	nop		\n"
+		:
+		: "d"(flags)
+		: "memory", "cc");
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+	return (flags & (EPSW_IE | EPSW_IM)) != (EPSW_IE | EPSW_IM_7);
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+/*
+ * Hook to save power by halting the CPU
+ * - called from the idle loop
+ * - must reenable interrupts (which takes three instruction cycles to complete)
+ */
+static inline void arch_safe_halt(void)
+{
+#ifdef CONFIG_SMP
+	arch_local_irq_enable();
+#else
+	asm volatile(
+		"	or	%0,epsw	\n"
+		"	nop		\n"
+		"	nop		\n"
+		"	bset	%2,(%1)	\n"
+		:
+		: "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)
+		: "cc");
+#endif
+}
+
+#define __sleep_cpu()				\
+do {						\
+	asm volatile(				\
+		"	bset	%1,(%0)\n"	\
+		"1:	btst	%1,(%0)\n"	\
+		"	bne	1b\n"		\
+		:				\
+		: "i"(&CPUM), "i"(CPUM_SLEEP)	\
+		: "cc"				\
+		);				\
+} while (0)
+
+static inline void arch_local_cli(void)
+{
+	asm volatile(
+		"	and	%0,epsw		\n"
+		"	nop			\n"
+		"	nop			\n"
+		"	nop			\n"
+		:
+		: "i"(~EPSW_IE)
+		: "memory"
+		);
+}
+
+static inline unsigned long arch_local_cli_save(void)
+{
+	unsigned long flags = arch_local_save_flags();
+	arch_local_cli();
+	return flags;
+}
+
+static inline void arch_local_sti(void)
+{
+	asm volatile(
+		"	or	%0,epsw		\n"
+		:
+		: "i"(EPSW_IE)
+		: "memory");
+}
+
+static inline void arch_local_change_intr_mask_level(unsigned long level)
+{
+	asm volatile(
+		"	and	%0,epsw		\n"
+		"	or	%1,epsw		\n"
+		:
+		: "i"(~EPSW_IM), "i"(EPSW_IE | level)
+		: "cc", "memory");
+}
+
+#else /* !__ASSEMBLY__ */
+
+#define LOCAL_SAVE_FLAGS(reg)			\
+	mov	epsw,reg
+
+#define LOCAL_IRQ_DISABLE				\
+	and	~EPSW_IM,epsw;				\
+	or	EPSW_IE|MN10300_CLI_LEVEL,epsw;		\
+	nop;						\
+	nop;						\
+	nop
+
+#define LOCAL_IRQ_ENABLE		\
+	or	EPSW_IE|EPSW_IM_7,epsw
+
+#define LOCAL_IRQ_RESTORE(reg)	\
+	mov	reg,epsw
+
+#define LOCAL_CLI_SAVE(reg)	\
+	mov	epsw,reg;	\
+	and	~EPSW_IE,epsw;	\
+	nop;			\
+	nop;			\
+	nop
+
+#define LOCAL_CLI		\
+	and	~EPSW_IE,epsw;	\
+	nop;			\
+	nop;			\
+	nop
+
+#define LOCAL_STI		\
+	or	EPSW_IE,epsw
+
+#define LOCAL_CHANGE_INTR_MASK_LEVEL(level)	\
+	and	~EPSW_IM,epsw;			\
+	or	EPSW_IE|(level),epsw
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_IRQFLAGS_H */

arch/mn10300/include/asm/kdebug.h

@@ -0,0 +1,22 @@
+/* MN10300 In-kernel death knells
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_KDEBUG_H
+#define _ASM_KDEBUG_H
+
+/* Grossly misnamed. */
+enum die_val {
+	DIE_OOPS = 1,
+	DIE_BREAKPOINT,
+	DIE_GPF,
+};
+
+#endif /* _ASM_KDEBUG_H */

arch/mn10300/include/asm/kgdb.h

@@ -0,0 +1,81 @@
+/* Kernel debugger for MN10300
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_KGDB_H
+#define _ASM_KGDB_H
+
+/*
+ * BUFMAX defines the maximum number of characters in inbound/outbound
+ * buffers at least NUMREGBYTES*2 are needed for register packets
+ * Longer buffer is needed to list all threads
+ */
+#define BUFMAX			1024
+
+/*
+ * Note that this register image is in a different order than the register
+ * image that Linux produces at interrupt time.
+ */
+enum regnames {
+	GDB_FR_D0		= 0,
+	GDB_FR_D1		= 1,
+	GDB_FR_D2		= 2,
+	GDB_FR_D3		= 3,
+	GDB_FR_A0		= 4,
+	GDB_FR_A1		= 5,
+	GDB_FR_A2		= 6,
+	GDB_FR_A3		= 7,
+
+	GDB_FR_SP		= 8,
+	GDB_FR_PC		= 9,
+	GDB_FR_MDR		= 10,
+	GDB_FR_EPSW		= 11,
+	GDB_FR_LIR		= 12,
+	GDB_FR_LAR		= 13,
+	GDB_FR_MDRQ		= 14,
+
+	GDB_FR_E0		= 15,
+	GDB_FR_E1		= 16,
+	GDB_FR_E2		= 17,
+	GDB_FR_E3		= 18,
+	GDB_FR_E4		= 19,
+	GDB_FR_E5		= 20,
+	GDB_FR_E6		= 21,
+	GDB_FR_E7		= 22,
+
+	GDB_FR_SSP		= 23,
+	GDB_FR_MSP		= 24,
+	GDB_FR_USP		= 25,
+	GDB_FR_MCRH		= 26,
+	GDB_FR_MCRL		= 27,
+	GDB_FR_MCVF		= 28,
+
+	GDB_FR_FPCR		= 29,
+	GDB_FR_DUMMY0		= 30,
+	GDB_FR_DUMMY1		= 31,
+
+	GDB_FR_FS0		= 32,
+
+	GDB_FR_SIZE		= 64,
+};
+
+#define GDB_ORIG_D0		41
+#define NUMREGBYTES		(GDB_FR_SIZE*4)
+
+static inline void arch_kgdb_breakpoint(void)
+{
+	asm(".globl __arch_kgdb_breakpoint; __arch_kgdb_breakpoint: break");
+}
+extern u8 __arch_kgdb_breakpoint;
+
+#define BREAK_INSTR_SIZE	1
+#define CACHE_FLUSH_IS_SAFE	1
+
+#endif /* _ASM_KGDB_H */

arch/mn10300/include/asm/kmap_types.h

@@ -0,0 +1,6 @@
+#ifndef _ASM_KMAP_TYPES_H
+#define _ASM_KMAP_TYPES_H
+
+#include <asm-generic/kmap_types.h>
+
+#endif /* _ASM_KMAP_TYPES_H */

arch/mn10300/include/asm/kprobes.h

@@ -0,0 +1,50 @@
+/* MN10300 Kernel Probes support
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by Mark Salter (msalter@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public Licence as published by
+ * the Free Software Foundation; either version 2 of the Licence, 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 Licence for more details.
+ *
+ * You should have received a copy of the GNU General Public Licence
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+#ifndef _ASM_KPROBES_H
+#define _ASM_KPROBES_H
+
+#include <linux/types.h>
+#include <linux/ptrace.h>
+
+struct kprobe;
+
+typedef unsigned char kprobe_opcode_t;
+#define BREAKPOINT_INSTRUCTION	0xff
+#define MAX_INSN_SIZE 8
+#define MAX_STACK_SIZE 128
+
+/* Architecture specific copy of original instruction */
+struct arch_specific_insn {
+	/*  copy of original instruction
+	 */
+	kprobe_opcode_t insn[MAX_INSN_SIZE];
+};
+
+extern const int kretprobe_blacklist_size;
+
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+				    unsigned long val, void *data);
+
+#define flush_insn_slot(p)  do {} while (0)
+
+extern void arch_remove_kprobe(struct kprobe *p);
+
+#endif /* _ASM_KPROBES_H */

arch/mn10300/include/asm/linkage.h

@@ -0,0 +1,20 @@
+/* MN10300 Linkage and calling-convention overrides
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_LINKAGE_H
+#define _ASM_LINKAGE_H
+
+/* don't override anything */
+#define asmlinkage
+
+#define __ALIGN		.align 4,0xcb
+#define __ALIGN_STR	".align 4,0xcb"
+
+#endif

arch/mn10300/include/asm/local.h

@@ -0,0 +1 @@
+#include <asm-generic/local.h>

arch/mn10300/include/asm/local64.h

@@ -0,0 +1 @@
+#include <asm-generic/local64.h>

arch/mn10300/include/asm/mc146818rtc.h

@@ -0,0 +1 @@
+#include <asm/rtc-regs.h>

arch/mn10300/include/asm/mmu.h

@@ -0,0 +1,19 @@
+/* MN10300 Memory management context
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ * - Derived from include/asm-frv/mmu.h
+ */
+
+#ifndef _ASM_MMU_H
+#define _ASM_MMU_H
+
+/*
+ * MMU context
+ */
+typedef struct {
+	unsigned long	tlbpid[NR_CPUS];	/* TLB PID for this process on
+						 * each CPU */
+} mm_context_t;
+
+#endif /* _ASM_MMU_H */

arch/mn10300/include/asm/mmu_context.h

@@ -0,0 +1,161 @@
+/* MN10300 MMU context management
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Modified by David Howells (dhowells@redhat.com)
+ * - Derived from include/asm-m32r/mmu_context.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ *
+ *
+ * This implements an algorithm to provide TLB PID mappings to provide
+ * selective access to the TLB for processes, thus reducing the number of TLB
+ * flushes required.
+ *
+ * Note, however, that the M32R algorithm is technically broken as it does not
+ * handle version wrap-around, and could, theoretically, have a problem with a
+ * very long lived program that sleeps long enough for the version number to
+ * wrap all the way around so that its TLB mappings appear valid once again.
+ */
+#ifndef _ASM_MMU_CONTEXT_H
+#define _ASM_MMU_CONTEXT_H
+
+#include <linux/atomic.h>
+#include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
+#include <asm-generic/mm_hooks.h>
+
+#define MMU_CONTEXT_TLBPID_NR		256
+#define MMU_CONTEXT_TLBPID_MASK		0x000000ffUL
+#define MMU_CONTEXT_VERSION_MASK	0xffffff00UL
+#define MMU_CONTEXT_FIRST_VERSION	0x00000100UL
+#define MMU_NO_CONTEXT			0x00000000UL
+#define MMU_CONTEXT_TLBPID_LOCK_NR	0
+
+#define enter_lazy_tlb(mm, tsk)	do {} while (0)
+
+static inline void cpu_ran_vm(int cpu, struct mm_struct *mm)
+{
+#ifdef CONFIG_SMP
+	cpumask_set_cpu(cpu, mm_cpumask(mm));
+#endif
+}
+
+static inline bool cpu_maybe_ran_vm(int cpu, struct mm_struct *mm)
+{
+#ifdef CONFIG_SMP
+	return cpumask_test_and_set_cpu(cpu, mm_cpumask(mm));
+#else
+	return true;
+#endif
+}
+
+#ifdef CONFIG_MN10300_TLB_USE_PIDR
+extern unsigned long mmu_context_cache[NR_CPUS];
+#define mm_context(mm)	(mm->context.tlbpid[smp_processor_id()])
+
+/**
+ * allocate_mmu_context - Allocate storage for the arch-specific MMU data
+ * @mm: The userspace VM context being set up
+ */
+static inline unsigned long allocate_mmu_context(struct mm_struct *mm)
+{
+	unsigned long *pmc = &mmu_context_cache[smp_processor_id()];
+	unsigned long mc = ++(*pmc);
+
+	if (!(mc & MMU_CONTEXT_TLBPID_MASK)) {
+		/* we exhausted the TLB PIDs of this version on this CPU, so we
+		 * flush this CPU's TLB in its entirety and start new cycle */
+		local_flush_tlb_all();
+
+		/* fix the TLB version if needed (we avoid version #0 so as to
+		 * distinguish MMU_NO_CONTEXT) */
+		if (!mc)
+			*pmc = mc = MMU_CONTEXT_FIRST_VERSION;
+	}
+	mm_context(mm) = mc;
+	return mc;
+}
+
+/*
+ * get an MMU context if one is needed
+ */
+static inline unsigned long get_mmu_context(struct mm_struct *mm)
+{
+	unsigned long mc = MMU_NO_CONTEXT, cache;
+
+	if (mm) {
+		cache = mmu_context_cache[smp_processor_id()];
+		mc = mm_context(mm);
+
+		/* if we have an old version of the context, replace it */
+		if ((mc ^ cache) & MMU_CONTEXT_VERSION_MASK)
+			mc = allocate_mmu_context(mm);
+	}
+	return mc;
+}
+
+/*
+ * initialise the context related info for a new mm_struct instance
+ */
+static inline int init_new_context(struct task_struct *tsk,
+				   struct mm_struct *mm)
+{
+	int num_cpus = NR_CPUS, i;
+
+	for (i = 0; i < num_cpus; i++)
+		mm->context.tlbpid[i] = MMU_NO_CONTEXT;
+	return 0;
+}
+
+/*
+ * after we have set current->mm to a new value, this activates the context for
+ * the new mm so we see the new mappings.
+ */
+static inline void activate_context(struct mm_struct *mm)
+{
+	PIDR = get_mmu_context(mm) & MMU_CONTEXT_TLBPID_MASK;
+}
+#else  /* CONFIG_MN10300_TLB_USE_PIDR */
+
+#define init_new_context(tsk, mm)	(0)
+#define activate_context(mm)		local_flush_tlb()
+
+#endif /* CONFIG_MN10300_TLB_USE_PIDR */
+
+/**
+ * destroy_context - Destroy mm context information
+ * @mm: The MM being destroyed.
+ *
+ * Destroy context related info for an mm_struct that is about to be put to
+ * rest
+ */
+#define destroy_context(mm)	do {} while (0)
+
+/**
+ * switch_mm - Change between userspace virtual memory contexts
+ * @prev: The outgoing MM context.
+ * @next: The incoming MM context.
+ * @tsk: The incoming task.
+ */
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+			     struct task_struct *tsk)
+{
+	int cpu = smp_processor_id();
+
+	if (prev != next) {
+#ifdef CONFIG_SMP
+		per_cpu(cpu_tlbstate, cpu).active_mm = next;
+#endif
+		cpu_ran_vm(cpu, next);
+		PTBR = (unsigned long) next->pgd;
+		activate_context(next);
+	}
+}
+
+#define deactivate_mm(tsk, mm)	do {} while (0)
+#define activate_mm(prev, next)	switch_mm((prev), (next), NULL)
+
+#endif /* _ASM_MMU_CONTEXT_H */

arch/mn10300/include/asm/module.h

@@ -0,0 +1,22 @@
+/* MN10300 Arch-specific module definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by Mark Salter (msalter@redhat.com)
+ * Derived from include/asm-i386/module.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_MODULE_H
+#define _ASM_MODULE_H
+
+#include <asm-generic/module.h>
+
+/*
+ * Include the MN10300 architecture version.
+ */
+#define MODULE_ARCH_VERMAGIC __stringify(PROCESSOR_MODEL_NAME) " "
+
+#endif /* _ASM_MODULE_H */

arch/mn10300/include/asm/mutex.h

@@ -0,0 +1,16 @@
+/* MN10300 Mutex fastpath
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ *
+ *
+ * TODO: implement optimized primitives instead, or leave the generic
+ * implementation in place, or pick the atomic_xchg() based generic
+ * implementation. (see asm-generic/mutex-xchg.h for details)
+ */
+#include <asm-generic/mutex-null.h>

arch/mn10300/include/asm/nmi.h

@@ -0,0 +1,14 @@
+/* MN10300 NMI handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_NMI_H
+#define _ASM_NMI_H
+
+#endif /* _ASM_NMI_H */

arch/mn10300/include/asm/page.h

@@ -0,0 +1,128 @@
+/* MN10300 Page table definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_PAGE_H
+#define _ASM_PAGE_H
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT	12
+
+#ifndef __ASSEMBLY__
+#define PAGE_SIZE	(1UL << PAGE_SHIFT)
+#define PAGE_MASK	(~(PAGE_SIZE - 1))
+#else
+#define PAGE_SIZE	+(1 << PAGE_SHIFT)	/* unary plus marks an
+						 * immediate val not an addr */
+#define PAGE_MASK	+(~(PAGE_SIZE - 1))
+#endif
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
+#define copy_page(to, from)	memcpy((void *)(to), (void *)(from), PAGE_SIZE)
+
+#define clear_user_page(addr, vaddr, page)	clear_page(addr)
+#define copy_user_page(vto, vfrom, vaddr, to)	copy_page(vto, vfrom)
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
+
+#define PTE_MASK	PAGE_MASK
+#define HPAGE_SHIFT	22
+
+#ifdef CONFIG_HUGETLB_PAGE
+#define HPAGE_SIZE		((1UL) << HPAGE_SHIFT)
+#define HPAGE_MASK		(~(HPAGE_SIZE - 1))
+#define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
+#endif
+
+#define pte_val(x)	((x).pte)
+#define pgd_val(x)	((x).pgd)
+#define pgprot_val(x)	((x).pgprot)
+
+#define __pte(x)	((pte_t) { (x) })
+#define __pgd(x)	((pgd_t) { (x) })
+#define __pgprot(x)	((pgprot_t) { (x) })
+
+#include <asm-generic/pgtable-nopmd.h>
+
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * This handles the memory map.. We could make this a config
+ * option, but too many people screw it up, and too few need
+ * it.
+ *
+ * A __PAGE_OFFSET of 0xC0000000 means that the kernel has
+ * a virtual address space of one gigabyte, which limits the
+ * amount of physical memory you can use to about 950MB.
+ */
+
+#ifndef __ASSEMBLY__
+
+/* Pure 2^n version of get_order */
+static inline int get_order(unsigned long size) __attribute__((const));
+static inline int get_order(unsigned long size)
+{
+	int order;
+
+	size = (size - 1) >> (PAGE_SHIFT - 1);
+	order = -1;
+	do {
+		size >>= 1;
+		order++;
+	} while (size);
+	return order;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#include <asm/page_offset.h>
+
+#define __PAGE_OFFSET		(PAGE_OFFSET_RAW)
+#define PAGE_OFFSET		((unsigned long) __PAGE_OFFSET)
+
+/*
+ * main RAM and kernel working space are coincident at 0x90000000, but to make
+ * life more interesting, there's also an uncached virtual shadow at 0xb0000000
+ * - these mappings are fixed in the MMU
+ */
+#define __pfn_disp		(CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT)
+
+#define __pa(x)			((unsigned long)(x))
+#define __va(x)			((void *)(unsigned long)(x))
+#define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
+#define pfn_to_page(pfn)	(mem_map + ((pfn) - __pfn_disp))
+#define page_to_pfn(page)	((unsigned long)((page) - mem_map) + __pfn_disp)
+
+#define pfn_valid(pfn)					\
+({							\
+	unsigned long __pfn = (pfn) - __pfn_disp;	\
+	__pfn < max_mapnr;				\
+})
+
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+
+#define VM_DATA_DEFAULT_FLAGS \
+	(VM_READ | VM_WRITE | \
+	((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
+		 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_PAGE_H */

arch/mn10300/include/asm/page_offset.h

@@ -0,0 +1,11 @@
+/* MN10300 Kernel base address
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+#ifndef _ASM_PAGE_OFFSET_H
+#define _ASM_PAGE_OFFSET_H
+
+#define PAGE_OFFSET_RAW CONFIG_KERNEL_RAM_BASE_ADDRESS
+
+#endif

arch/mn10300/include/asm/pci.h

@@ -0,0 +1,106 @@
+/* MN10300 PCI definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_PCI_H
+#define _ASM_PCI_H
+
+#ifdef __KERNEL__
+#include <linux/mm.h>		/* for struct page */
+
+#if 0
+#define __pcbdebug(FMT, ADDR, ...) \
+	printk(KERN_DEBUG "PCIBRIDGE[%08x]: "FMT"\n", \
+	       (u32)(ADDR), ##__VA_ARGS__)
+
+#define __pcidebug(FMT, BUS, DEVFN, WHERE,...)		\
+do {							\
+	printk(KERN_DEBUG "PCI[%02x:%02x.%x + %02x]: "FMT"\n",	\
+	       (BUS)->number,					\
+	       PCI_SLOT(DEVFN),					\
+	       PCI_FUNC(DEVFN),					\
+	       (u32)(WHERE), ##__VA_ARGS__);			\
+} while (0)
+
+#else
+#define __pcbdebug(FMT, ADDR, ...)		do {} while (0)
+#define __pcidebug(FMT, BUS, DEVFN, WHERE, ...)	do {} while (0)
+#endif
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+ * already-configured bus numbers - to be used for buggy BIOSes or
+ * architectures with incomplete PCI setup by the loader */
+
+#ifdef CONFIG_PCI
+#define pcibios_assign_all_busses()	1
+extern void unit_pci_init(void);
+#else
+#define pcibios_assign_all_busses()	0
+#endif
+
+#define PCIBIOS_MIN_IO		0xBE000004
+#define PCIBIOS_MIN_MEM		0xB8000000
+
+void pcibios_set_master(struct pci_dev *dev);
+
+/* Dynamic DMA mapping stuff.
+ * i386 has everything mapped statically.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/scatterlist.h>
+#include <linux/string.h>
+#include <asm/io.h>
+
+struct pci_dev;
+
+/* The PCI address space does equal the physical memory
+ * address space.  The networking and block device layers use
+ * this boolean for bounce buffer decisions.
+ */
+#define PCI_DMA_BUS_IS_PHYS	(1)
+
+/* Return the index of the PCI controller for device. */
+static inline int pci_controller_num(struct pci_dev *dev)
+{
+	return 0;
+}
+
+#define HAVE_PCI_MMAP
+extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+			       enum pci_mmap_state mmap_state,
+			       int write_combine);
+
+#endif /* __KERNEL__ */
+
+/* implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+	return channel ? 15 : 14;
+}
+
+#include <asm-generic/pci_iomap.h>
+
+#endif /* _ASM_PCI_H */

arch/mn10300/include/asm/percpu.h

@@ -0,0 +1 @@
+#include <asm-generic/percpu.h>

arch/mn10300/include/asm/pgalloc.h

@@ -0,0 +1,56 @@
+/* MN10300 Page and page table/directory allocation
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_PGALLOC_H
+#define _ASM_PGALLOC_H
+
+#include <asm/page.h>
+#include <linux/threads.h>
+#include <linux/mm.h>		/* for struct page */
+
+struct mm_struct;
+struct page;
+
+/* attach a page table to a PMD entry */
+#define pmd_populate_kernel(mm, pmd, pte) \
+	set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE))
+
+static inline
+void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
+{
+	set_pmd(pmd, __pmd((page_to_pfn(pte) << PAGE_SHIFT) | _PAGE_TABLE));
+}
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+/*
+ * Allocate and free page tables.
+ */
+
+extern pgd_t *pgd_alloc(struct mm_struct *);
+extern void pgd_free(struct mm_struct *, pgd_t *);
+
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
+extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
+
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+{
+	free_page((unsigned long) pte);
+}
+
+static inline void pte_free(struct mm_struct *mm, struct page *pte)
+{
+	pgtable_page_dtor(pte);
+	__free_page(pte);
+}
+
+
+#define __pte_free_tlb(tlb, pte, addr) tlb_remove_page((tlb), (pte))
+
+#endif /* _ASM_PGALLOC_H */

arch/mn10300/include/asm/pgtable.h

@@ -0,0 +1,503 @@
+/* MN10300 Page table manipulators and constants
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ *
+ *
+ * The Linux memory management assumes a three-level page table setup. On
+ * the i386, we use that, but "fold" the mid level into the top-level page
+ * table, so that we physically have the same two-level page table as the
+ * i386 mmu expects.
+ *
+ * This file contains the functions and defines necessary to modify and use
+ * the i386 page table tree for the purposes of the MN10300 TLB handler
+ * functions.
+ */
+#ifndef _ASM_PGTABLE_H
+#define _ASM_PGTABLE_H
+
+#include <asm/cpu-regs.h>
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+#include <asm/cache.h>
+#include <linux/threads.h>
+
+#include <asm/bitops.h>
+
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+extern unsigned long empty_zero_page[1024];
+extern spinlock_t pgd_lock;
+extern struct page *pgd_list;
+
+extern void pmd_ctor(void *, struct kmem_cache *, unsigned long);
+extern void pgtable_cache_init(void);
+extern void paging_init(void);
+
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * The Linux mn10300 paging architecture only implements both the traditional
+ * 2-level page tables
+ */
+#define PGDIR_SHIFT	22
+#define PTRS_PER_PGD	1024
+#define PTRS_PER_PUD	1	/* we don't really have any PUD physically */
+#define PTRS_PER_PMD	1	/* we don't really have any PMD physically */
+#define PTRS_PER_PTE	1024
+
+#define PGD_SIZE	PAGE_SIZE
+#define PMD_SIZE	(1UL << PMD_SHIFT)
+#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
+#define PGDIR_MASK	(~(PGDIR_SIZE - 1))
+
+#define USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
+#define FIRST_USER_ADDRESS	0
+
+#define USER_PGD_PTRS		(PAGE_OFFSET >> PGDIR_SHIFT)
+#define KERNEL_PGD_PTRS		(PTRS_PER_PGD - USER_PGD_PTRS)
+
+#define TWOLEVEL_PGDIR_SHIFT	22
+#define BOOT_USER_PGD_PTRS	(__PAGE_OFFSET >> TWOLEVEL_PGDIR_SHIFT)
+#define BOOT_KERNEL_PGD_PTRS	(1024 - BOOT_USER_PGD_PTRS)
+
+#ifndef __ASSEMBLY__
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+#endif
+
+/*
+ * Unfortunately, due to the way the MMU works on the MN10300, the vmalloc VM
+ * area has to be in the lower half of the virtual address range (the upper
+ * half is not translated through the TLB).
+ *
+ * So in this case, the vmalloc area goes at the bottom of the address map
+ * (leaving a hole at the very bottom to catch addressing errors), and
+ * userspace starts immediately above.
+ *
+ * The vmalloc() routines also leaves a hole of 4kB between each vmalloced
+ * area to catch addressing errors.
+ */
+#ifndef __ASSEMBLY__
+#define VMALLOC_OFFSET	(8UL * 1024 * 1024)
+#define VMALLOC_START	(0x70000000UL)
+#define VMALLOC_END	(0x7C000000UL)
+#else
+#define VMALLOC_OFFSET	(8 * 1024 * 1024)
+#define VMALLOC_START	(0x70000000)
+#define VMALLOC_END	(0x7C000000)
+#endif
+
+#ifndef __ASSEMBLY__
+extern pte_t kernel_vmalloc_ptes[(VMALLOC_END - VMALLOC_START) / PAGE_SIZE];
+#endif
+
+/* IPTEL2/DPTEL2 bit assignments */
+#define _PAGE_BIT_VALID		xPTEL2_V_BIT
+#define _PAGE_BIT_CACHE		xPTEL2_C_BIT
+#define _PAGE_BIT_PRESENT	xPTEL2_PV_BIT
+#define _PAGE_BIT_DIRTY		xPTEL2_D_BIT
+#define _PAGE_BIT_GLOBAL	xPTEL2_G_BIT
+#define _PAGE_BIT_ACCESSED	xPTEL2_UNUSED1_BIT	/* mustn't be loaded into IPTEL2/DPTEL2 */
+
+#define _PAGE_VALID		xPTEL2_V
+#define _PAGE_CACHE		xPTEL2_C
+#define _PAGE_PRESENT		xPTEL2_PV
+#define _PAGE_DIRTY		xPTEL2_D
+#define _PAGE_PROT		xPTEL2_PR
+#define _PAGE_PROT_RKNU		xPTEL2_PR_ROK
+#define _PAGE_PROT_WKNU		xPTEL2_PR_RWK
+#define _PAGE_PROT_RKRU		xPTEL2_PR_ROK_ROU
+#define _PAGE_PROT_WKRU		xPTEL2_PR_RWK_ROU
+#define _PAGE_PROT_WKWU		xPTEL2_PR_RWK_RWU
+#define _PAGE_GLOBAL		xPTEL2_G
+#define _PAGE_PS_MASK		xPTEL2_PS
+#define _PAGE_PS_4Kb		xPTEL2_PS_4Kb
+#define _PAGE_PS_128Kb		xPTEL2_PS_128Kb
+#define _PAGE_PS_1Kb		xPTEL2_PS_1Kb
+#define _PAGE_PS_4Mb		xPTEL2_PS_4Mb
+#define _PAGE_PSE		xPTEL2_PS_4Mb		/* 4MB page */
+#define _PAGE_CACHE_WT		xPTEL2_CWT
+#define _PAGE_ACCESSED		xPTEL2_UNUSED1
+#define _PAGE_NX		0			/* no-execute bit */
+
+/* If _PAGE_VALID is clear, we use these: */
+#define _PAGE_FILE		xPTEL2_C	/* set:pagecache unset:swap */
+#define _PAGE_PROTNONE		0x000		/* If not present */
+
+#define __PAGE_PROT_UWAUX	0x010
+#define __PAGE_PROT_USER	0x020
+#define __PAGE_PROT_WRITE	0x040
+
+#define _PAGE_PRESENTV		(_PAGE_PRESENT|_PAGE_VALID)
+
+#ifndef __ASSEMBLY__
+
+#define VMALLOC_VMADDR(x) ((unsigned long)(x))
+
+#define _PAGE_TABLE	(_PAGE_PRESENTV | _PAGE_PROT_WKNU | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _PAGE_CHG_MASK	(PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+
+#define __PAGE_NONE	(_PAGE_PRESENTV | _PAGE_PROT_RKNU | _PAGE_ACCESSED | _PAGE_CACHE)
+#define __PAGE_SHARED	(_PAGE_PRESENTV | _PAGE_PROT_WKWU | _PAGE_ACCESSED | _PAGE_CACHE)
+#define __PAGE_COPY	(_PAGE_PRESENTV | _PAGE_PROT_RKRU | _PAGE_ACCESSED | _PAGE_CACHE)
+#define __PAGE_READONLY	(_PAGE_PRESENTV | _PAGE_PROT_RKRU | _PAGE_ACCESSED | _PAGE_CACHE)
+
+#define PAGE_NONE		__pgprot(__PAGE_NONE     | _PAGE_NX)
+#define PAGE_SHARED_NOEXEC	__pgprot(__PAGE_SHARED   | _PAGE_NX)
+#define PAGE_COPY_NOEXEC	__pgprot(__PAGE_COPY     | _PAGE_NX)
+#define PAGE_READONLY_NOEXEC	__pgprot(__PAGE_READONLY | _PAGE_NX)
+#define PAGE_SHARED_EXEC	__pgprot(__PAGE_SHARED)
+#define PAGE_COPY_EXEC		__pgprot(__PAGE_COPY)
+#define PAGE_READONLY_EXEC	__pgprot(__PAGE_READONLY)
+#define PAGE_COPY		PAGE_COPY_NOEXEC
+#define PAGE_READONLY		PAGE_READONLY_NOEXEC
+#define PAGE_SHARED		PAGE_SHARED_EXEC
+
+#define __PAGE_KERNEL_BASE (_PAGE_PRESENTV | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
+
+#define __PAGE_KERNEL		(__PAGE_KERNEL_BASE | _PAGE_PROT_WKNU | _PAGE_CACHE | _PAGE_NX)
+#define __PAGE_KERNEL_NOCACHE	(__PAGE_KERNEL_BASE | _PAGE_PROT_WKNU | _PAGE_NX)
+#define __PAGE_KERNEL_EXEC	(__PAGE_KERNEL & ~_PAGE_NX)
+#define __PAGE_KERNEL_RO	(__PAGE_KERNEL_BASE | _PAGE_PROT_RKNU | _PAGE_CACHE | _PAGE_NX)
+#define __PAGE_KERNEL_LARGE	(__PAGE_KERNEL | _PAGE_PSE)
+#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
+
+#define PAGE_KERNEL		__pgprot(__PAGE_KERNEL)
+#define PAGE_KERNEL_RO		__pgprot(__PAGE_KERNEL_RO)
+#define PAGE_KERNEL_EXEC	__pgprot(__PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_NOCACHE	__pgprot(__PAGE_KERNEL_NOCACHE)
+#define PAGE_KERNEL_LARGE	__pgprot(__PAGE_KERNEL_LARGE)
+#define PAGE_KERNEL_LARGE_EXEC	__pgprot(__PAGE_KERNEL_LARGE_EXEC)
+
+#define __PAGE_USERIO		(__PAGE_KERNEL_BASE | _PAGE_PROT_WKWU | _PAGE_NX)
+#define PAGE_USERIO		__pgprot(__PAGE_USERIO)
+
+/*
+ * Whilst the MN10300 can do page protection for execute (given separate data
+ * and insn TLBs), we are not supporting it at the moment. Write permission,
+ * however, always implies read permission (but not execute permission).
+ */
+#define __P000	PAGE_NONE
+#define __P001	PAGE_READONLY_NOEXEC
+#define __P010	PAGE_COPY_NOEXEC
+#define __P011	PAGE_COPY_NOEXEC
+#define __P100	PAGE_READONLY_EXEC
+#define __P101	PAGE_READONLY_EXEC
+#define __P110	PAGE_COPY_EXEC
+#define __P111	PAGE_COPY_EXEC
+
+#define __S000	PAGE_NONE
+#define __S001	PAGE_READONLY_NOEXEC
+#define __S010	PAGE_SHARED_NOEXEC
+#define __S011	PAGE_SHARED_NOEXEC
+#define __S100	PAGE_READONLY_EXEC
+#define __S101	PAGE_READONLY_EXEC
+#define __S110	PAGE_SHARED_EXEC
+#define __S111	PAGE_SHARED_EXEC
+
+/*
+ * Define this to warn about kernel memory accesses that are
+ * done without a 'verify_area(VERIFY_WRITE,..)'
+ */
+#undef TEST_VERIFY_AREA
+
+#define pte_present(x)	(pte_val(x) & _PAGE_VALID)
+#define pte_clear(mm, addr, xp)				\
+do {							\
+	set_pte_at((mm), (addr), (xp), __pte(0));	\
+} while (0)
+
+#define pmd_none(x)	(!pmd_val(x))
+#define pmd_present(x)	(!pmd_none(x))
+#define pmd_clear(xp)	do { set_pmd(xp, __pmd(0)); } while (0)
+#define	pmd_bad(x)	0
+
+
+#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT))
+
+#ifndef __ASSEMBLY__
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+static inline int pte_user(pte_t pte)	{ return pte_val(pte) & __PAGE_PROT_USER; }
+static inline int pte_read(pte_t pte)	{ return pte_val(pte) & __PAGE_PROT_USER; }
+static inline int pte_dirty(pte_t pte)	{ return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte)	{ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_write(pte_t pte)	{ return pte_val(pte) & __PAGE_PROT_WRITE; }
+static inline int pte_special(pte_t pte){ return 0; }
+
+/*
+ * The following only works if pte_present() is not true.
+ */
+static inline int pte_file(pte_t pte)	{ return pte_val(pte) & _PAGE_FILE; }
+
+static inline pte_t pte_rdprotect(pte_t pte)
+{
+	pte_val(pte) &= ~(__PAGE_PROT_USER|__PAGE_PROT_UWAUX); return pte;
+}
+static inline pte_t pte_exprotect(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_NX; return pte;
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+	pte_val(pte) &= ~(__PAGE_PROT_WRITE|__PAGE_PROT_UWAUX); return pte;
+}
+
+static inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkexec(pte_t pte)	{ pte_val(pte) &= ~_PAGE_NX; return pte; }
+
+static inline pte_t pte_mkread(pte_t pte)
+{
+	pte_val(pte) |= __PAGE_PROT_USER;
+	if (pte_write(pte))
+		pte_val(pte) |= __PAGE_PROT_UWAUX;
+	return pte;
+}
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+	pte_val(pte) |= __PAGE_PROT_WRITE;
+	if (pte_val(pte) & __PAGE_PROT_USER)
+		pte_val(pte) |= __PAGE_PROT_UWAUX;
+	return pte;
+}
+
+static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
+
+#define pte_ERROR(e) \
+	printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \
+	       __FILE__, __LINE__, pte_val(e))
+#define pgd_ERROR(e) \
+	printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \
+	       __FILE__, __LINE__, pgd_val(e))
+
+/*
+ * The "pgd_xxx()" functions here are trivial for a folded two-level
+ * setup: the pgd is never bad, and a pmd always exists (as it's folded
+ * into the pgd entry)
+ */
+#define pgd_clear(xp)				do { } while (0)
+
+/*
+ * Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+#define set_pte(pteptr, pteval)			(*(pteptr) = pteval)
+#define set_pte_at(mm, addr, ptep, pteval)	set_pte((ptep), (pteval))
+#define set_pte_atomic(pteptr, pteval)		set_pte((pteptr), (pteval))
+
+/*
+ * (pmds are folded into pgds so this doesn't get actually called,
+ * but the define is needed for a generic inline function.)
+ */
+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
+
+#define ptep_get_and_clear(mm, addr, ptep) \
+	__pte(xchg(&(ptep)->pte, 0))
+#define pte_same(a, b)		(pte_val(a) == pte_val(b))
+#define pte_page(x)		pfn_to_page(pte_pfn(x))
+#define pte_none(x)		(!pte_val(x))
+#define pte_pfn(x)		((unsigned long) (pte_val(x) >> PAGE_SHIFT))
+#define __pfn_addr(pfn)		((pfn) << PAGE_SHIFT)
+#define pfn_pte(pfn, prot)	__pte(__pfn_addr(pfn) | pgprot_val(prot))
+#define pfn_pmd(pfn, prot)	__pmd(__pfn_addr(pfn) | pgprot_val(prot))
+
+/*
+ * All present user pages are user-executable:
+ */
+static inline int pte_exec(pte_t pte)
+{
+	return pte_user(pte);
+}
+
+/*
+ * All present pages are kernel-executable:
+ */
+static inline int pte_exec_kernel(pte_t pte)
+{
+	return 1;
+}
+
+#define PTE_FILE_MAX_BITS	30
+
+#define pte_to_pgoff(pte)	(pte_val(pte) >> 2)
+#define pgoff_to_pte(off)	__pte((off) << 2 | _PAGE_FILE)
+
+/* Encode and de-code a swap entry */
+#define __swp_type(x)			(((x).val >> 2) & 0x3f)
+#define __swp_offset(x)			((x).val >> 8)
+#define __swp_entry(type, offset) \
+	((swp_entry_t) { ((type) << 2) | ((offset) << 8) })
+#define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)		__pte((x).val)
+
+static inline
+int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr,
+			      pte_t *ptep)
+{
+	if (!pte_dirty(*ptep))
+		return 0;
+	return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte);
+}
+
+static inline
+int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr,
+			      pte_t *ptep)
+{
+	if (!pte_young(*ptep))
+		return 0;
+	return test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte);
+}
+
+static inline
+void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+	pte_val(*ptep) &= ~(__PAGE_PROT_WRITE|__PAGE_PROT_UWAUX);
+}
+
+static inline void ptep_mkdirty(pte_t *ptep)
+{
+	set_bit(_PAGE_BIT_DIRTY, &ptep->pte);
+}
+
+/*
+ * Macro to mark a page protection value as "uncacheable".  On processors which
+ * do not support it, this is a no-op.
+ */
+#define pgprot_noncached(prot)	__pgprot(pgprot_val(prot) & ~_PAGE_CACHE)
+
+/*
+ * Macro to mark a page protection value as "Write-Through".
+ * On processors which do not support it, this is a no-op.
+ */
+#define pgprot_through(prot)	__pgprot(pgprot_val(prot) | _PAGE_CACHE_WT)
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+
+#define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
+#define mk_pte_huge(entry) \
+	((entry).pte |= _PAGE_PRESENT | _PAGE_PSE | _PAGE_VALID)
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+	pte_val(pte) &= _PAGE_CHG_MASK;
+	pte_val(pte) |= pgprot_val(newprot);
+	return pte;
+}
+
+#define page_pte(page)	page_pte_prot((page), __pgprot(0))
+
+#define pmd_page_kernel(pmd) \
+	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
+#define pmd_page(pmd)	pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)
+
+#define pmd_large(pmd) \
+	((pmd_val(pmd) & (_PAGE_PSE | _PAGE_PRESENT)) == \
+	 (_PAGE_PSE | _PAGE_PRESENT))
+
+/*
+ * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD]
+ *
+ * this macro returns the index of the entry in the pgd page which would
+ * control the given virtual address
+ */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
+
+/*
+ * pgd_offset() returns a (pgd_t *)
+ * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
+ */
+#define pgd_offset(mm, address)	((mm)->pgd + pgd_index(address))
+
+/*
+ * a shortcut which implies the use of the kernel's pgd, instead
+ * of a process's
+ */
+#define pgd_offset_k(address)	pgd_offset(&init_mm, address)
+
+/*
+ * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
+ *
+ * this macro returns the index of the entry in the pmd page which would
+ * control the given virtual address
+ */
+#define pmd_index(address) \
+	(((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
+
+/*
+ * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
+ *
+ * this macro returns the index of the entry in the pte page which would
+ * control the given virtual address
+ */
+#define pte_index(address) \
+	(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+
+#define pte_offset_kernel(dir, address) \
+	((pte_t *) pmd_page_kernel(*(dir)) +  pte_index(address))
+
+/*
+ * Make a given kernel text page executable/non-executable.
+ * Returns the previous executability setting of that page (which
+ * is used to restore the previous state). Used by the SMP bootup code.
+ * NOTE: this is an __init function for security reasons.
+ */
+static inline int set_kernel_exec(unsigned long vaddr, int enable)
+{
+	return 0;
+}
+
+#define pte_offset_map(dir, address) \
+	((pte_t *) page_address(pmd_page(*(dir))) + pte_index(address))
+#define pte_unmap(pte)		do {} while (0)
+
+/*
+ * The MN10300 has external MMU info in the form of a TLB: this is adapted from
+ * the kernel page tables containing the necessary information by tlb-mn10300.S
+ */
+extern void update_mmu_cache(struct vm_area_struct *vma,
+			     unsigned long address, pte_t *ptep);
+
+#endif /* !__ASSEMBLY__ */
+
+#define kern_addr_valid(addr)	(1)
+
+#define MK_IOSPACE_PFN(space, pfn)	(pfn)
+#define GET_IOSPACE(pfn)		0
+#define GET_PFN(pfn)			(pfn)
+
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+#define __HAVE_ARCH_PTEP_SET_WRPROTECT
+#define __HAVE_ARCH_PTEP_MKDIRTY
+#define __HAVE_ARCH_PTE_SAME
+#include <asm-generic/pgtable.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_PGTABLE_H */

arch/mn10300/include/asm/pio-regs.h

@@ -0,0 +1,233 @@
+/* MN10300 On-board I/O port module registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_PIO_REGS_H
+#define _ASM_PIO_REGS_H
+
+#include <asm/cpu-regs.h>
+#include <asm/intctl-regs.h>
+
+#ifdef __KERNEL__
+
+/* I/O port 0 */
+#define	P0MD			__SYSREG(0xdb000000, u16)	/* mode reg */
+#define P0MD_0			0x0003	/* mask */
+#define P0MD_0_IN		0x0000	/* input mode */
+#define P0MD_0_OUT		0x0001	/* output mode */
+#define P0MD_0_TM0IO		0x0002	/* timer 0 I/O mode */
+#define P0MD_0_EYECLK		0x0003	/* test signal output (clock) */
+#define P0MD_1			0x000c
+#define P0MD_1_IN		0x0000
+#define P0MD_1_OUT		0x0004
+#define P0MD_1_TM1IO		0x0008	/* timer 1 I/O mode */
+#define P0MD_1_EYED		0x000c	/* test signal output (data) */
+#define P0MD_2			0x0030
+#define P0MD_2_IN		0x0000
+#define P0MD_2_OUT		0x0010
+#define P0MD_2_TM2IO		0x0020	/* timer 2 I/O mode */
+#define P0MD_3			0x00c0
+#define P0MD_3_IN		0x0000
+#define P0MD_3_OUT		0x0040
+#define P0MD_3_TM3IO		0x0080	/* timer 3 I/O mode */
+#define P0MD_4			0x0300
+#define P0MD_4_IN		0x0000
+#define P0MD_4_OUT		0x0100
+#define P0MD_4_TM4IO		0x0200	/* timer 4 I/O mode */
+#define P0MD_4_XCTS		0x0300	/* XCTS input for serial port 2 */
+#define P0MD_5			0x0c00
+#define P0MD_5_IN		0x0000
+#define P0MD_5_OUT		0x0400
+#define P0MD_5_TM5IO		0x0800	/* timer 5 I/O mode */
+#define P0MD_6			0x3000
+#define P0MD_6_IN		0x0000
+#define P0MD_6_OUT		0x1000
+#define P0MD_6_TM6IOA		0x2000	/* timer 6 I/O mode A */
+#define P0MD_7			0xc000
+#define P0MD_7_IN		0x0000
+#define P0MD_7_OUT		0x4000
+#define P0MD_7_TM6IOB		0x8000	/* timer 6 I/O mode B */
+
+#define	P0IN			__SYSREG(0xdb000004, u8)	/* in reg */
+#define	P0OUT			__SYSREG(0xdb000008, u8)	/* out reg */
+
+#define	P0TMIO			__SYSREG(0xdb00000c, u8)	/* TM pin I/O control reg */
+#define P0TMIO_TM0_IN		0x00
+#define P0TMIO_TM0_OUT		0x01
+#define P0TMIO_TM1_IN		0x00
+#define P0TMIO_TM1_OUT		0x02
+#define P0TMIO_TM2_IN		0x00
+#define P0TMIO_TM2_OUT		0x04
+#define P0TMIO_TM3_IN		0x00
+#define P0TMIO_TM3_OUT		0x08
+#define P0TMIO_TM4_IN		0x00
+#define P0TMIO_TM4_OUT		0x10
+#define P0TMIO_TM5_IN		0x00
+#define P0TMIO_TM5_OUT		0x20
+#define P0TMIO_TM6A_IN		0x00
+#define P0TMIO_TM6A_OUT		0x40
+#define P0TMIO_TM6B_IN		0x00
+#define P0TMIO_TM6B_OUT		0x80
+
+/* I/O port 1 */
+#define	P1MD			__SYSREG(0xdb000100, u16)	/* mode reg */
+#define P1MD_0			0x0003	/* mask */
+#define P1MD_0_IN		0x0000	/* input mode */
+#define P1MD_0_OUT		0x0001	/* output mode */
+#define P1MD_0_TM7IO		0x0002	/* timer 7 I/O mode */
+#define P1MD_0_ADTRG		0x0003	/* A/D converter trigger mode */
+#define P1MD_1			0x000c
+#define P1MD_1_IN		0x0000
+#define P1MD_1_OUT		0x0004
+#define P1MD_1_TM8IO		0x0008	/* timer 8 I/O mode */
+#define P1MD_1_XDMR0		0x000c	/* DMA request input 0 mode */
+#define P1MD_2			0x0030
+#define P1MD_2_IN		0x0000
+#define P1MD_2_OUT		0x0010
+#define P1MD_2_TM9IO		0x0020	/* timer 9 I/O mode */
+#define P1MD_2_XDMR1		0x0030	/* DMA request input 1 mode */
+#define P1MD_3			0x00c0
+#define P1MD_3_IN		0x0000
+#define P1MD_3_OUT		0x0040
+#define P1MD_3_TM10IO		0x0080	/* timer 10 I/O mode */
+#define P1MD_3_FRQS0		0x00c0	/* CPU clock multiplier setting input 0 mode */
+#define P1MD_4			0x0300
+#define P1MD_4_IN		0x0000
+#define P1MD_4_OUT		0x0100
+#define P1MD_4_TM11IO		0x0200	/* timer 11 I/O mode */
+#define P1MD_4_FRQS1		0x0300	/* CPU clock multiplier setting input 1 mode */
+
+#define	P1IN			__SYSREG(0xdb000104, u8)	/* in reg */
+#define	P1OUT			__SYSREG(0xdb000108, u8)	/* out reg */
+#define	P1TMIO			__SYSREG(0xdb00010c, u8)	/* TM pin I/O control reg */
+#define P1TMIO_TM11_IN		0x00
+#define P1TMIO_TM11_OUT		0x01
+#define P1TMIO_TM10_IN		0x00
+#define P1TMIO_TM10_OUT		0x02
+#define P1TMIO_TM9_IN		0x00
+#define P1TMIO_TM9_OUT		0x04
+#define P1TMIO_TM8_IN		0x00
+#define P1TMIO_TM8_OUT		0x08
+#define P1TMIO_TM7_IN		0x00
+#define P1TMIO_TM7_OUT		0x10
+
+/* I/O port 2 */
+#define	P2MD			__SYSREG(0xdb000200, u16)	/* mode reg */
+#define P2MD_0			0x0003	/* mask */
+#define P2MD_0_IN		0x0000	/* input mode */
+#define P2MD_0_OUT		0x0001	/* output mode */
+#define P2MD_0_BOOTBW		0x0003	/* boot bus width selector mode */
+#define P2MD_1			0x000c
+#define P2MD_1_IN		0x0000
+#define P2MD_1_OUT		0x0004
+#define P2MD_1_BOOTSEL		0x000c	/* boot device selector mode */
+#define P2MD_2			0x0030
+#define P2MD_2_IN		0x0000
+#define P2MD_2_OUT		0x0010
+#define P2MD_3			0x00c0
+#define P2MD_3_IN		0x0000
+#define P2MD_3_OUT		0x0040
+#define P2MD_3_CKIO		0x00c0	/* mode */
+#define P2MD_4			0x0300
+#define P2MD_4_IN		0x0000
+#define P2MD_4_OUT		0x0100
+#define P2MD_4_CMOD		0x0300	/* mode */
+
+#define	P2IN			__SYSREG(0xdb000204, u8)	/* in reg */
+#define	P2OUT			__SYSREG(0xdb000208, u8)	/* out reg */
+#define	P2TMIO			__SYSREG(0xdb00020c, u8)	/* TM pin I/O control reg */
+
+/* I/O port 3 */
+#define	P3MD			__SYSREG(0xdb000300, u16)	/* mode reg */
+#define P3MD_0			0x0003	/* mask */
+#define P3MD_0_IN		0x0000	/* input mode */
+#define P3MD_0_OUT		0x0001	/* output mode */
+#define P3MD_0_AFRXD		0x0002	/* AFR interface mode */
+#define P3MD_1			0x000c
+#define P3MD_1_IN		0x0000
+#define P3MD_1_OUT		0x0004
+#define P3MD_1_AFTXD		0x0008	/* AFR interface mode */
+#define P3MD_2			0x0030
+#define P3MD_2_IN		0x0000
+#define P3MD_2_OUT		0x0010
+#define P3MD_2_AFSCLK		0x0020	/* AFR interface mode */
+#define P3MD_3			0x00c0
+#define P3MD_3_IN		0x0000
+#define P3MD_3_OUT		0x0040
+#define P3MD_3_AFFS		0x0080	/* AFR interface mode */
+#define P3MD_4			0x0300
+#define P3MD_4_IN		0x0000
+#define P3MD_4_OUT		0x0100
+#define P3MD_4_AFEHC		0x0200	/* AFR interface mode */
+
+#define	P3IN			__SYSREG(0xdb000304, u8)	/* in reg */
+#define	P3OUT			__SYSREG(0xdb000308, u8)	/* out reg */
+
+/* I/O port 4 */
+#define	P4MD			__SYSREG(0xdb000400, u16)	/* mode reg */
+#define P4MD_0			0x0003	/* mask */
+#define P4MD_0_IN		0x0000	/* input mode */
+#define P4MD_0_OUT		0x0001	/* output mode */
+#define P4MD_0_SCL0		0x0002	/* I2C/serial mode */
+#define P4MD_1			0x000c
+#define P4MD_1_IN		0x0000
+#define P4MD_1_OUT		0x0004
+#define P4MD_1_SDA0		0x0008
+#define P4MD_2			0x0030
+#define P4MD_2_IN		0x0000
+#define P4MD_2_OUT		0x0010
+#define P4MD_2_SCL1		0x0020
+#define P4MD_3			0x00c0
+#define P4MD_3_IN		0x0000
+#define P4MD_3_OUT		0x0040
+#define P4MD_3_SDA1		0x0080
+#define P4MD_4			0x0300
+#define P4MD_4_IN		0x0000
+#define P4MD_4_OUT		0x0100
+#define P4MD_4_SBO0		0x0200
+#define P4MD_5			0x0c00
+#define P4MD_5_IN		0x0000
+#define P4MD_5_OUT		0x0400
+#define P4MD_5_SBO1		0x0800
+#define P4MD_6			0x3000
+#define P4MD_6_IN		0x0000
+#define P4MD_6_OUT		0x1000
+#define P4MD_6_SBT0		0x2000
+#define P4MD_7			0xc000
+#define P4MD_7_IN		0x0000
+#define P4MD_7_OUT		0x4000
+#define P4MD_7_SBT1		0x8000
+
+#define	P4IN			__SYSREG(0xdb000404, u8)	/* in reg */
+#define	P4OUT			__SYSREG(0xdb000408, u8)	/* out reg */
+
+/* I/O port 5 */
+#define	P5MD			__SYSREG(0xdb000500, u16)	/* mode reg */
+#define P5MD_0			0x0003	/* mask */
+#define P5MD_0_IN		0x0000	/* input mode */
+#define P5MD_0_OUT		0x0001	/* output mode */
+#define P5MD_0_IRTXD		0x0002	/* IrDA mode */
+#define P5MD_0_SOUT		0x0004	/* serial mode */
+#define P5MD_1			0x000c
+#define P5MD_1_IN		0x0000
+#define P5MD_1_OUT		0x0004
+#define P5MD_1_IRRXDS		0x0008	/* IrDA mode */
+#define P5MD_1_SIN		0x000c	/* serial mode */
+#define P5MD_2			0x0030
+#define P5MD_2_IN		0x0000
+#define P5MD_2_OUT		0x0010
+#define P5MD_2_IRRXDF		0x0020	/* IrDA mode */
+
+#define	P5IN			__SYSREG(0xdb000504, u8)	/* in reg */
+#define	P5OUT			__SYSREG(0xdb000508, u8)	/* out reg */
+
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_PIO_REGS_H */

arch/mn10300/include/asm/processor.h

@@ -0,0 +1,178 @@
+/* MN10300 Processor specifics
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_PROCESSOR_H
+#define _ASM_PROCESSOR_H
+
+#include <linux/threads.h>
+#include <linux/thread_info.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <asm/cpu-regs.h>
+#include <asm/uaccess.h>
+#include <asm/current.h>
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+struct mm_struct;
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr()			\
+({						\
+	void *__pc;				\
+	asm("mov pc,%0" : "=a"(__pc));		\
+	__pc;					\
+})
+
+extern void get_mem_info(unsigned long *mem_base, unsigned long *mem_size);
+
+extern void show_registers(struct pt_regs *regs);
+
+/*
+ *  CPU type and hardware bug flags. Kept separately for each CPU.
+ *  Members of this structure are referenced in head.S, so think twice
+ *  before touching them. [mj]
+ */
+
+struct mn10300_cpuinfo {
+	int		type;
+	unsigned long	loops_per_jiffy;
+	char		hard_math;
+};
+
+extern struct mn10300_cpuinfo boot_cpu_data;
+
+#ifdef CONFIG_SMP
+#if CONFIG_NR_CPUS < 2 || CONFIG_NR_CPUS > 8
+# error Sorry, NR_CPUS should be 2 to 8
+#endif
+extern struct mn10300_cpuinfo cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#else  /* CONFIG_SMP */
+#define cpu_data &boot_cpu_data
+#define current_cpu_data boot_cpu_data
+#endif /* CONFIG_SMP */
+
+extern void identify_cpu(struct mn10300_cpuinfo *);
+extern void print_cpu_info(struct mn10300_cpuinfo *);
+extern void dodgy_tsc(void);
+
+#define cpu_relax() barrier()
+#define cpu_relax_lowlatency() cpu_relax()
+
+/*
+ * User space process size: 1.75GB (default).
+ */
+#define TASK_SIZE		0x70000000
+
+/*
+ * Where to put the userspace stack by default
+ */
+#define STACK_TOP		0x70000000
+#define STACK_TOP_MAX		STACK_TOP
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE	0x30000000
+
+struct fpu_state_struct {
+	unsigned long	fs[32];		/* fpu registers */
+	unsigned long	fpcr;		/* fpu control register */
+};
+
+struct thread_struct {
+	struct pt_regs		*uregs;		/* userspace register frame */
+	unsigned long		pc;		/* kernel PC */
+	unsigned long		sp;		/* kernel SP */
+	unsigned long		a3;		/* kernel FP */
+	unsigned long		wchan;
+	unsigned long		usp;
+	unsigned long		fpu_flags;
+#define THREAD_USING_FPU	0x00000001	/* T if this task is using the FPU */
+#define THREAD_HAS_FPU		0x00000002	/* T if this task owns the FPU right now */
+	struct fpu_state_struct	fpu_state;
+};
+
+#define INIT_THREAD		\
+{				\
+	.uregs	= init_uregs,	\
+	.pc	= 0,		\
+	.sp	= 0,		\
+	.a3	= 0,		\
+	.wchan	= 0,		\
+}
+
+#define INIT_MMAP \
+{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, \
+  NULL, NULL }
+
+/*
+ * do necessary setup to start up a newly executed thread
+ */
+static inline void start_thread(struct pt_regs *regs,
+				unsigned long new_pc, unsigned long new_sp)
+{
+	regs->epsw = EPSW_nSL | EPSW_IE | EPSW_IM;
+	regs->pc = new_pc;
+	regs->sp = new_sp;
+}
+
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+extern unsigned long thread_saved_pc(struct task_struct *tsk);
+
+unsigned long get_wchan(struct task_struct *p);
+
+#define task_pt_regs(task) ((task)->thread.uregs)
+#define KSTK_EIP(task) (task_pt_regs(task)->pc)
+#define KSTK_ESP(task) (task_pt_regs(task)->sp)
+
+#define KSTK_TOP(info)				\
+({						\
+	(unsigned long)(info) + THREAD_SIZE;	\
+})
+
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+
+static inline void prefetch(const void *x)
+{
+#ifdef CONFIG_MN10300_CACHE_ENABLED
+#ifdef CONFIG_MN10300_PROC_MN103E010
+	asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
+#else
+	asm volatile ("dcpf (%0)" : : "r"(x));
+#endif
+#endif
+}
+
+static inline void prefetchw(const void *x)
+{
+#ifdef CONFIG_MN10300_CACHE_ENABLED
+#ifdef CONFIG_MN10300_PROC_MN103E010
+	asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
+#else
+	asm volatile ("dcpf (%0)" : : "r"(x));
+#endif
+#endif
+}
+
+#endif /* _ASM_PROCESSOR_H */

arch/mn10300/include/asm/ptrace.h

@@ -0,0 +1,26 @@
+/* MN10300 Exception frame layout and ptrace constants
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_PTRACE_H
+#define _ASM_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+#define user_mode(regs)			(((regs)->epsw & EPSW_nSL) == EPSW_nSL)
+#define instruction_pointer(regs)	((regs)->pc)
+#define user_stack_pointer(regs)	((regs)->sp)
+#define current_pt_regs()		current_frame()
+
+#define arch_has_single_step()	(1)
+
+#define profile_pc(regs) ((regs)->pc)
+
+#endif /* _ASM_PTRACE_H */

arch/mn10300/include/asm/reset-regs.h

@@ -0,0 +1,60 @@
+/* MN10300 Reset controller and watchdog timer definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_RESET_REGS_H
+#define _ASM_RESET_REGS_H
+
+#include <asm/cpu-regs.h>
+#include <asm/exceptions.h>
+
+#ifdef __KERNEL__
+
+/*
+ * watchdog timer registers
+ */
+#define WDBC			__SYSREGC(0xc0001000, u8) /* watchdog binary counter reg */
+
+#define WDCTR			__SYSREG(0xc0001002, u8)  /* watchdog timer control reg */
+#define WDCTR_WDCK		0x07	/* clock source selection */
+#define WDCTR_WDCK_256th	0x00	/* - OSCI/256 */
+#define WDCTR_WDCK_1024th	0x01	/* - OSCI/1024 */
+#define WDCTR_WDCK_2048th	0x02	/* - OSCI/2048 */
+#define WDCTR_WDCK_16384th	0x03	/* - OSCI/16384 */
+#define WDCTR_WDCK_65536th	0x04	/* - OSCI/65536 */
+#define WDCTR_WDRST		0x40	/* binary counter reset */
+#define WDCTR_WDCNE		0x80	/* watchdog timer enable */
+
+#define RSTCTR			__SYSREG(0xc0001004, u8) /* reset control reg */
+#define RSTCTR_CHIPRST		0x01	/* chip reset */
+#define RSTCTR_DBFRST		0x02	/* double fault reset flag */
+#define RSTCTR_WDTRST		0x04	/* watchdog timer reset flag */
+#define RSTCTR_WDREN		0x08	/* watchdog timer reset enable */
+
+#ifndef __ASSEMBLY__
+
+static inline void mn10300_proc_hard_reset(void)
+{
+	RSTCTR &= ~RSTCTR_CHIPRST;
+	RSTCTR |= RSTCTR_CHIPRST;
+}
+
+extern unsigned int watchdog_alert_counter[];
+
+extern void watchdog_go(void);
+extern asmlinkage void watchdog_handler(void);
+extern asmlinkage
+void watchdog_interrupt(struct pt_regs *, enum exception_code);
+
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_RESET_REGS_H */

arch/mn10300/include/asm/rtc-regs.h

@@ -0,0 +1,86 @@
+/* MN10300 on-chip Real-Time Clock registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_RTC_REGS_H
+#define _ASM_RTC_REGS_H
+
+#include <asm/intctl-regs.h>
+
+#ifdef __KERNEL__
+
+#define RTSCR			__SYSREG(0xd8600000, u8) /* RTC seconds count reg */
+#define RTSAR			__SYSREG(0xd8600001, u8) /* RTC seconds alarm reg */
+#define RTMCR			__SYSREG(0xd8600002, u8) /* RTC minutes count reg */
+#define RTMAR			__SYSREG(0xd8600003, u8) /* RTC minutes alarm reg */
+#define RTHCR			__SYSREG(0xd8600004, u8) /* RTC hours count reg */
+#define RTHAR			__SYSREG(0xd8600005, u8) /* RTC hours alarm reg */
+#define RTDWCR			__SYSREG(0xd8600006, u8) /* RTC day of the week count reg */
+#define RTDMCR			__SYSREG(0xd8600007, u8) /* RTC days count reg */
+#define RTMTCR			__SYSREG(0xd8600008, u8) /* RTC months count reg */
+#define RTYCR			__SYSREG(0xd8600009, u8) /* RTC years count reg */
+
+#define RTCRA			__SYSREG(0xd860000a, u8)/* RTC control reg A */
+#define RTCRA_RS		0x0f	/* periodic timer interrupt cycle setting */
+#define RTCRA_RS_NONE		0x00	/* - off */
+#define RTCRA_RS_3_90625ms	0x01	/* - 3.90625ms	(1/256s) */
+#define RTCRA_RS_7_8125ms	0x02	/* - 7.8125ms	(1/128s) */
+#define RTCRA_RS_122_070us	0x03	/* - 122.070us	(1/8192s) */
+#define RTCRA_RS_244_141us	0x04	/* - 244.141us	(1/4096s) */
+#define RTCRA_RS_488_281us	0x05	/* - 488.281us	(1/2048s) */
+#define RTCRA_RS_976_5625us	0x06	/* - 976.5625us	(1/1024s) */
+#define RTCRA_RS_1_953125ms	0x07	/* - 1.953125ms	(1/512s) */
+#define RTCRA_RS_3_90624ms	0x08	/* - 3.90624ms	(1/256s) */
+#define RTCRA_RS_7_8125ms_b	0x09	/* - 7.8125ms	(1/128s) */
+#define RTCRA_RS_15_625ms	0x0a	/* - 15.625ms	(1/64s) */
+#define RTCRA_RS_31_25ms	0x0b	/* - 31.25ms	(1/32s) */
+#define RTCRA_RS_62_5ms		0x0c	/* - 62.5ms	(1/16s) */
+#define RTCRA_RS_125ms		0x0d	/* - 125ms	(1/8s) */
+#define RTCRA_RS_250ms		0x0e	/* - 250ms	(1/4s) */
+#define RTCRA_RS_500ms		0x0f	/* - 500ms	(1/2s) */
+#define RTCRA_DVR		0x40	/* divider reset */
+#define RTCRA_UIP		0x80	/* clock update flag */
+
+#define RTCRB			__SYSREG(0xd860000b, u8) /* RTC control reg B */
+#define RTCRB_DSE		0x01	/* daylight savings time enable */
+#define RTCRB_TM		0x02	/* time format */
+#define RTCRB_TM_12HR		0x00	/* - 12 hour format */
+#define RTCRB_TM_24HR		0x02	/* - 24 hour format */
+#define RTCRB_DM		0x04	/* numeric value format */
+#define RTCRB_DM_BCD		0x00	/* - BCD */
+#define RTCRB_DM_BINARY		0x04	/* - binary */
+#define RTCRB_UIE		0x10	/* update interrupt disable */
+#define RTCRB_AIE		0x20	/* alarm interrupt disable */
+#define RTCRB_PIE		0x40	/* periodic interrupt disable */
+#define RTCRB_SET		0x80	/* clock update enable */
+
+#define RTSRC			__SYSREG(0xd860000c, u8) /* RTC status reg C */
+#define RTSRC_UF		0x10	/* update end interrupt flag */
+#define RTSRC_AF		0x20	/* alarm interrupt flag */
+#define RTSRC_PF		0x40	/* periodic interrupt flag */
+#define RTSRC_IRQF		0x80	/* interrupt flag */
+
+#define RTIRQ			32
+#define RTICR			GxICR(RTIRQ)
+
+/*
+ * MC146818 RTC compatibility defs for the MN10300 on-chip RTC
+ */
+#define RTC_PORT(x)		0xd8600000
+#define RTC_ALWAYS_BCD		1	/* RTC operates in binary mode */
+
+#define CMOS_READ(addr)		__SYSREG(0xd8600000 + (addr), u8)
+#define CMOS_WRITE(val, addr)	\
+	do { __SYSREG(0xd8600000 + (addr), u8) = val; } while (0)
+
+#define RTC_IRQ			RTIRQ
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_RTC_REGS_H */

arch/mn10300/include/asm/rtc.h

@@ -0,0 +1,30 @@
+/* MN10300 Real time clock definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_RTC_H
+#define _ASM_RTC_H
+
+#ifdef CONFIG_MN10300_RTC
+
+#include <linux/init.h>
+
+extern void __init calibrate_clock(void);
+
+#else /* !CONFIG_MN10300_RTC */
+
+static inline void calibrate_clock(void)
+{
+}
+
+#endif /* !CONFIG_MN10300_RTC */
+
+#include <asm-generic/rtc.h>
+
+#endif /* _ASM_RTC_H */

arch/mn10300/include/asm/rwlock.h

@@ -0,0 +1,125 @@
+/*
+ * Helpers used by both rw spinlocks and rw semaphores.
+ *
+ * Based in part on code from semaphore.h and
+ * spinlock.h Copyright 1996 Linus Torvalds.
+ *
+ * Copyright 1999 Red Hat, Inc.
+ *
+ * Written by Benjamin LaHaise.
+ *
+ * Modified by Matsushita Electric Industrial Co., Ltd.
+ * Modifications:
+ * 13-Nov-2006 MEI Temporarily delete lock functions for SMP support.
+ *
+ * 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.
+ */
+#ifndef _ASM_RWLOCK_H
+#define _ASM_RWLOCK_H
+
+#define RW_LOCK_BIAS		 0x01000000
+
+#ifndef CONFIG_SMP
+
+typedef struct { unsigned long a[100]; } __dummy_lock_t;
+#define __dummy_lock(lock) (*(__dummy_lock_t *)(lock))
+
+#define RW_LOCK_BIAS_STR	"0x01000000"
+
+#define __build_read_lock_ptr(rw, helper)				\
+	do {								\
+		asm volatile(						\
+			"	mov	(%0),d3			\n"	\
+			"	sub	1,d3			\n"	\
+			"	mov	d3,(%0)			\n"	\
+			"	blt	1f			\n"	\
+			"	bra	2f			\n"	\
+			"1:	jmp	3f			\n"	\
+			"2:					\n"	\
+			"	.section .text.lock,\"ax\"	\n"	\
+			"3:	call	"helper"[],0		\n"	\
+			"	jmp	2b			\n"	\
+			"	.previous"				\
+			:						\
+			: "d" (rw)					\
+			: "memory", "d3", "cc");			\
+	} while (0)
+
+#define __build_read_lock_const(rw, helper)				\
+	do {								\
+		asm volatile(						\
+			"	mov	(%0),d3			\n"	\
+			"	sub	1,d3			\n"	\
+			"	mov	d3,(%0)			\n"	\
+			"	blt	1f			\n"	\
+			"	bra	2f			\n"	\
+			"1:	jmp	3f			\n"	\
+			"2:					\n"	\
+			"	.section .text.lock,\"ax\"	\n"	\
+			"3:	call	"helper"[],0		\n"	\
+			"	jmp	2b			\n"	\
+			"	.previous"				\
+			:						\
+			: "d" (rw)					\
+			: "memory", "d3", "cc");			\
+	} while (0)
+
+#define __build_read_lock(rw, helper) \
+	do {								\
+		if (__builtin_constant_p(rw))				\
+			__build_read_lock_const(rw, helper);		\
+		else							\
+			__build_read_lock_ptr(rw, helper);		\
+	} while (0)
+
+#define __build_write_lock_ptr(rw, helper)				\
+	do {								\
+		asm volatile(						\
+			"	mov	(%0),d3			\n"	\
+			"	sub	1,d3			\n"	\
+			"	mov	d3,(%0)			\n"	\
+			"	blt	1f			\n"	\
+			"	bra	2f			\n"	\
+			"1:	jmp	3f			\n"	\
+			"2:					\n"	\
+			"	.section .text.lock,\"ax\"	\n"	\
+			"3:	call	"helper"[],0		\n"	\
+			"	jmp	2b			\n"	\
+			"	.previous"				\
+			:						\
+			: "d" (rw)					\
+			: "memory", "d3", "cc");			\
+	} while (0)
+
+#define __build_write_lock_const(rw, helper)				\
+	do {								\
+		asm volatile(						\
+			"	mov	(%0),d3			\n"	\
+			"	sub	1,d3			\n"	\
+			"	mov	d3,(%0)			\n"	\
+			"	blt	1f			\n"	\
+			"	bra	2f			\n"	\
+			"1:	jmp	3f			\n"	\
+			"2:					\n"	\
+			"	.section .text.lock,\"ax\"	\n"	\
+			"3:	call	"helper"[],0		\n"	\
+			"	jmp	2b			\n"	\
+			"	.previous"				\
+			:						\
+			: "d" (rw)					\
+			: "memory", "d3", "cc");			\
+	} while (0)
+
+#define __build_write_lock(rw, helper)					\
+	do {								\
+		if (__builtin_constant_p(rw))				\
+			__build_write_lock_const(rw, helper);		\
+		else							\
+			__build_write_lock_ptr(rw, helper);		\
+	} while (0)
+
+#endif /* CONFIG_SMP */
+#endif /* _ASM_RWLOCK_H */

arch/mn10300/include/asm/serial-regs.h

@@ -0,0 +1,191 @@
+/* MN10300 on-board serial port module registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_SERIAL_REGS_H
+#define _ASM_SERIAL_REGS_H
+
+#include <asm/cpu-regs.h>
+#include <asm/intctl-regs.h>
+
+#ifdef __KERNEL__
+
+/* serial port 0 */
+#define	SC0CTR			__SYSREG(0xd4002000, u16)	/* control reg */
+#define	SC01CTR_CK		0x0007	/* clock source select */
+#define	SC01CTR_CK_IOCLK_8	0x0001	/* - 1/8 IOCLK */
+#define	SC01CTR_CK_IOCLK_32	0x0002	/* - 1/32 IOCLK */
+#define	SC01CTR_CK_EXTERN_8	0x0006	/* - 1/8 external closk */
+#define	SC01CTR_CK_EXTERN	0x0007	/* - external closk */
+#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3)
+#define	SC0CTR_CK_TM8UFLOW_8	0x0000	/* - 1/8 timer 8 underflow (serial port 0 only) */
+#define	SC0CTR_CK_TM2UFLOW_2	0x0003	/* - 1/2 timer 2 underflow (serial port 0 only) */
+#define	SC0CTR_CK_TM0UFLOW_8	0x0004	/* - 1/8 timer 0 underflow (serial port 0 only) */
+#define	SC0CTR_CK_TM2UFLOW_8	0x0005	/* - 1/8 timer 2 underflow (serial port 0 only) */
+#define	SC1CTR_CK_TM9UFLOW_8	0x0000	/* - 1/8 timer 9 underflow (serial port 1 only) */
+#define	SC1CTR_CK_TM3UFLOW_2	0x0003	/* - 1/2 timer 3 underflow (serial port 1 only) */
+#define	SC1CTR_CK_TM1UFLOW_8	0x0004	/* - 1/8 timer 1 underflow (serial port 1 only) */
+#define	SC1CTR_CK_TM3UFLOW_8	0x0005	/* - 1/8 timer 3 underflow (serial port 1 only) */
+#else  /* CONFIG_AM33_2 || CONFIG_AM33_3 */
+#define	SC0CTR_CK_TM8UFLOW_8	0x0000	/* - 1/8 timer 8 underflow (serial port 0 only) */
+#define	SC0CTR_CK_TM0UFLOW_8	0x0004	/* - 1/8 timer 0 underflow (serial port 0 only) */
+#define	SC0CTR_CK_TM2UFLOW_8	0x0005	/* - 1/8 timer 2 underflow (serial port 0 only) */
+#define	SC1CTR_CK_TM12UFLOW_8	0x0000	/* - 1/8 timer 12 underflow (serial port 1 only) */
+#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */
+#define	SC01CTR_STB		0x0008	/* stop bit select */
+#define	SC01CTR_STB_1BIT	0x0000	/* - 1 stop bit */
+#define	SC01CTR_STB_2BIT	0x0008	/* - 2 stop bits */
+#define	SC01CTR_PB		0x0070	/* parity bit select */
+#define	SC01CTR_PB_NONE		0x0000	/* - no parity */
+#define	SC01CTR_PB_FIXED0	0x0040	/* - fixed at 0 */
+#define	SC01CTR_PB_FIXED1	0x0050	/* - fixed at 1 */
+#define	SC01CTR_PB_EVEN		0x0060	/* - even parity */
+#define	SC01CTR_PB_ODD		0x0070	/* - odd parity */
+#define	SC01CTR_CLN		0x0080	/* character length */
+#define	SC01CTR_CLN_7BIT	0x0000	/* - 7 bit chars */
+#define	SC01CTR_CLN_8BIT	0x0080	/* - 8 bit chars */
+#define	SC01CTR_TOE		0x0100	/* T input output enable */
+#define	SC01CTR_OD		0x0200	/* bit order select */
+#define	SC01CTR_OD_LSBFIRST	0x0000	/* - LSB first */
+#define	SC01CTR_OD_MSBFIRST	0x0200	/* - MSB first */
+#define	SC01CTR_MD		0x0c00	/* mode select */
+#define SC01CTR_MD_STST_SYNC	0x0000	/* - start-stop synchronous */
+#define SC01CTR_MD_CLOCK_SYNC1	0x0400	/* - clock synchronous 1 */
+#define SC01CTR_MD_I2C		0x0800	/* - I2C mode */
+#define SC01CTR_MD_CLOCK_SYNC2	0x0c00	/* - clock synchronous 2 */
+#define	SC01CTR_IIC		0x1000	/* I2C mode select */
+#define	SC01CTR_BKE		0x2000	/* break transmit enable */
+#define	SC01CTR_RXE		0x4000	/* receive enable */
+#define	SC01CTR_TXE		0x8000	/* transmit enable */
+
+#define	SC0ICR			__SYSREG(0xd4002004, u8)	/* interrupt control reg */
+#define SC01ICR_DMD		0x80	/* output data mode */
+#define SC01ICR_TD		0x20	/* transmit DMA trigger cause */
+#define SC01ICR_TI		0x10	/* transmit interrupt cause */
+#define SC01ICR_RES		0x04	/* receive error select */
+#define SC01ICR_RI		0x01	/* receive interrupt cause */
+
+#define	SC0TXB			__SYSREG(0xd4002008, u8)	/* transmit buffer reg */
+#define	SC0RXB			__SYSREG(0xd4002009, u8)	/* receive buffer reg */
+
+#define	SC0STR			__SYSREG(0xd400200c, u16)	/* status reg */
+#define SC01STR_OEF		0x0001	/* overrun error found */
+#define SC01STR_PEF		0x0002	/* parity error found */
+#define SC01STR_FEF		0x0004	/* framing error found */
+#define SC01STR_RBF		0x0010	/* receive buffer status */
+#define SC01STR_TBF		0x0020	/* transmit buffer status */
+#define SC01STR_RXF		0x0040	/* receive status */
+#define SC01STR_TXF		0x0080	/* transmit status */
+#define SC01STR_STF		0x0100	/* I2C start sequence found */
+#define SC01STR_SPF		0x0200	/* I2C stop sequence found */
+
+#define SC0RXIRQ		20	/* timer 0 Receive IRQ */
+#define SC0TXIRQ		21	/* timer 0 Transmit IRQ */
+
+#define	SC0RXICR		GxICR(SC0RXIRQ)	/* serial 0 receive intr ctrl reg */
+#define	SC0TXICR		GxICR(SC0TXIRQ)	/* serial 0 transmit intr ctrl reg */
+
+/* serial port 1 */
+#define	SC1CTR			__SYSREG(0xd4002010, u16)	/* serial port 1 control */
+#define	SC1ICR			__SYSREG(0xd4002014, u8)	/* interrupt control reg */
+#define	SC1TXB			__SYSREG(0xd4002018, u8)	/* transmit buffer reg */
+#define	SC1RXB			__SYSREG(0xd4002019, u8)	/* receive buffer reg */
+#define	SC1STR			__SYSREG(0xd400201c, u16)	/* status reg */
+
+#define SC1RXIRQ		22	/* timer 1 Receive IRQ */
+#define SC1TXIRQ		23	/* timer 1 Transmit IRQ */
+
+#define	SC1RXICR		GxICR(SC1RXIRQ)	/* serial 1 receive intr ctrl reg */
+#define	SC1TXICR		GxICR(SC1TXIRQ)	/* serial 1 transmit intr ctrl reg */
+
+/* serial port 2 */
+#define	SC2CTR			__SYSREG(0xd4002020, u16)	/* control reg */
+#ifdef CONFIG_AM33_2
+#define	SC2CTR_CK		0x0003	/* clock source select */
+#define	SC2CTR_CK_TM10UFLOW	0x0000	/* - timer 10 underflow */
+#define	SC2CTR_CK_TM2UFLOW	0x0001	/* - timer 2 underflow */
+#define	SC2CTR_CK_EXTERN	0x0002	/* - external closk */
+#define	SC2CTR_CK_TM3UFLOW	0x0003	/* - timer 3 underflow */
+#else  /* CONFIG_AM33_2 */
+#define	SC2CTR_CK		0x0007	/* clock source select */
+#define	SC2CTR_CK_TM9UFLOW_8	0x0000	/* - 1/8 timer 9 underflow */
+#define	SC2CTR_CK_IOCLK_8	0x0001	/* - 1/8 IOCLK */
+#define	SC2CTR_CK_IOCLK_32	0x0002	/* - 1/32 IOCLK */
+#define	SC2CTR_CK_TM3UFLOW_2	0x0003	/* - 1/2 timer 3 underflow */
+#define	SC2CTR_CK_TM1UFLOW_8	0x0004	/* - 1/8 timer 1 underflow */
+#define	SC2CTR_CK_TM3UFLOW_8	0x0005	/* - 1/8 timer 3 underflow */
+#define	SC2CTR_CK_EXTERN_8	0x0006	/* - 1/8 external closk */
+#define	SC2CTR_CK_EXTERN	0x0007	/* - external closk */
+#endif /* CONFIG_AM33_2 */
+#define	SC2CTR_STB		0x0008	/* stop bit select */
+#define	SC2CTR_STB_1BIT		0x0000	/* - 1 stop bit */
+#define	SC2CTR_STB_2BIT		0x0008	/* - 2 stop bits */
+#define	SC2CTR_PB		0x0070	/* parity bit select */
+#define	SC2CTR_PB_NONE		0x0000	/* - no parity */
+#define	SC2CTR_PB_FIXED0	0x0040	/* - fixed at 0 */
+#define	SC2CTR_PB_FIXED1	0x0050	/* - fixed at 1 */
+#define	SC2CTR_PB_EVEN		0x0060	/* - even parity */
+#define	SC2CTR_PB_ODD		0x0070	/* - odd parity */
+#define	SC2CTR_CLN		0x0080	/* character length */
+#define	SC2CTR_CLN_7BIT		0x0000	/* - 7 bit chars */
+#define	SC2CTR_CLN_8BIT		0x0080	/* - 8 bit chars */
+#define	SC2CTR_TWE		0x0100	/* transmit wait enable (enable XCTS control) */
+#define	SC2CTR_OD		0x0200	/* bit order select */
+#define	SC2CTR_OD_LSBFIRST	0x0000	/* - LSB first */
+#define	SC2CTR_OD_MSBFIRST	0x0200	/* - MSB first */
+#define	SC2CTR_TWS		0x1000	/* transmit wait select */
+#define	SC2CTR_TWS_XCTS_HIGH	0x0000	/* - interrupt TX when XCTS high */
+#define	SC2CTR_TWS_XCTS_LOW	0x1000	/* - interrupt TX when XCTS low */
+#define	SC2CTR_BKE		0x2000	/* break transmit enable */
+#define	SC2CTR_RXE		0x4000	/* receive enable */
+#define	SC2CTR_TXE		0x8000	/* transmit enable */
+
+#define	SC2ICR			__SYSREG(0xd4002024, u8)	/* interrupt control reg */
+#define SC2ICR_TD		0x20	/* transmit DMA trigger cause */
+#define SC2ICR_TI		0x10	/* transmit interrupt cause */
+#define SC2ICR_RES		0x04	/* receive error select */
+#define SC2ICR_RI		0x01	/* receive interrupt cause */
+
+#define	SC2TXB			__SYSREG(0xd4002028, u8)	/* transmit buffer reg */
+#define	SC2RXB			__SYSREG(0xd4002029, u8)	/* receive buffer reg */
+
+#ifdef CONFIG_AM33_2
+#define	SC2STR			__SYSREG(0xd400202c, u8)	/* status reg */
+#else  /* CONFIG_AM33_2 */
+#define	SC2STR			__SYSREG(0xd400202c, u16)	/* status reg */
+#endif /* CONFIG_AM33_2 */
+#define SC2STR_OEF		0x0001	/* overrun error found */
+#define SC2STR_PEF		0x0002	/* parity error found */
+#define SC2STR_FEF		0x0004	/* framing error found */
+#define SC2STR_CTS		0x0008	/* XCTS input pin status (0 means high) */
+#define SC2STR_RBF		0x0010	/* receive buffer status */
+#define SC2STR_TBF		0x0020	/* transmit buffer status */
+#define SC2STR_RXF		0x0040	/* receive status */
+#define SC2STR_TXF		0x0080	/* transmit status */
+
+#ifdef CONFIG_AM33_2
+#define	SC2TIM			__SYSREG(0xd400202d, u8)	/* status reg */
+#endif
+
+#ifdef CONFIG_AM33_2
+#define SC2RXIRQ		24	/* serial 2 Receive IRQ */
+#define SC2TXIRQ		25	/* serial 2 Transmit IRQ */
+#else  /* CONFIG_AM33_2 */
+#define SC2RXIRQ		68	/* serial 2 Receive IRQ */
+#define SC2TXIRQ		69	/* serial 2 Transmit IRQ */
+#endif /* CONFIG_AM33_2 */
+
+#define	SC2RXICR		GxICR(SC2RXIRQ)	/* serial 2 receive intr ctrl reg */
+#define	SC2TXICR		GxICR(SC2TXIRQ)	/* serial 2 transmit intr ctrl reg */
+
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_SERIAL_REGS_H */

arch/mn10300/include/asm/serial.h

@@ -0,0 +1,36 @@
+/* Standard UART definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_SERIAL_H
+#define _ASM_SERIAL_H
+
+/* Standard COM flags (except for COM4, because of the 8514 problem) */
+#ifdef CONFIG_SERIAL_DETECT_IRQ
+#define STD_COM_FLAGS	(ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
+#define STD_COM4_FLAGS	(ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
+#else
+#define STD_COM_FLAGS	(ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
+#define STD_COM4_FLAGS	ASYNC_BOOT_AUTOCONF
+#endif
+
+#ifdef CONFIG_SERIAL_MANY_PORTS
+#define FOURPORT_FLAGS	ASYNC_FOURPORT
+#define ACCENT_FLAGS	0
+#define BOCA_FLAGS	0
+#define HUB6_FLAGS	0
+#define RS_TABLE_SIZE	64
+#else
+#define RS_TABLE_SIZE
+#endif
+
+#include <unit/serial.h>
+
+#endif /* _ASM_SERIAL_H */

arch/mn10300/include/asm/setup.h

@@ -0,0 +1,18 @@
+/* MN10300 Setup declarations
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_SETUP_H
+#define _ASM_SETUP_H
+
+#include <uapi/asm/setup.h>
+
+extern void __init unit_setup(void);
+extern void __init unit_init_IRQ(void);
+#endif /* _ASM_SETUP_H */

arch/mn10300/include/asm/shmparam.h

@@ -0,0 +1,6 @@
+#ifndef _ASM_SHMPARAM_H
+#define _ASM_SHMPARAM_H
+
+#define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
+
+#endif /* _ASM_SHMPARAM_H */

arch/mn10300/include/asm/signal.h

@@ -0,0 +1,33 @@
+/* MN10300 Signal definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_SIGNAL_H
+#define _ASM_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+#define _NSIG		64
+#define _NSIG_BPW	32
+#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t;		/* at least 32 bits */
+
+typedef struct {
+	unsigned long	sig[_NSIG_WORDS];
+} sigset_t;
+
+#define __ARCH_HAS_SA_RESTORER
+
+#include <asm/sigcontext.h>
+
+#endif /* _ASM_SIGNAL_H */

arch/mn10300/include/asm/smp.h

@@ -0,0 +1,109 @@
+/* MN10300 SMP support
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * Modified by Matsushita Electric Industrial Co., Ltd.
+ * Modifications:
+ *  13-Nov-2006 MEI Define IPI-IRQ number and add inline/macro function
+ *                  for SMP support.
+ *  22-Jan-2007 MEI Add the define related to SMP_BOOT_IRQ.
+ *  23-Feb-2007 MEI Add the define related to SMP icahce invalidate.
+ *  23-Jun-2008 MEI Delete INTC_IPI.
+ *  22-Jul-2008 MEI Add smp_nmi_call_function and related defines.
+ *  04-Aug-2008 MEI Delete USE_DOIRQ_CACHE_IPI.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_SMP_H
+#define _ASM_SMP_H
+
+#ifndef __ASSEMBLY__
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/thread_info.h>
+#endif
+
+#ifdef CONFIG_SMP
+#include <proc/smp-regs.h>
+
+#define RESCHEDULE_IPI		63
+#define CALL_FUNC_SINGLE_IPI	192
+#define LOCAL_TIMER_IPI		193
+#define FLUSH_CACHE_IPI		194
+#define CALL_FUNCTION_NMI_IPI	195
+#define DEBUGGER_NMI_IPI	196
+
+#define SMP_BOOT_IRQ		195
+
+#define RESCHEDULE_GxICR_LV	GxICR_LEVEL_6
+#define CALL_FUNCTION_GxICR_LV	GxICR_LEVEL_4
+#define LOCAL_TIMER_GxICR_LV	GxICR_LEVEL_4
+#define FLUSH_CACHE_GxICR_LV	GxICR_LEVEL_0
+#define SMP_BOOT_GxICR_LV	GxICR_LEVEL_0
+#define DEBUGGER_GxICR_LV	CONFIG_DEBUGGER_IRQ_LEVEL
+
+#define TIME_OUT_COUNT_BOOT_IPI	100
+#define DELAY_TIME_BOOT_IPI	75000
+
+
+#ifndef __ASSEMBLY__
+
+/**
+ * raw_smp_processor_id - Determine the raw CPU ID of the CPU running it
+ *
+ * What we really want to do is to use the CPUID hardware CPU register to get
+ * this information, but accesses to that aren't cached, and run at system bus
+ * speed, not CPU speed.  A copy of this value is, however, stored in the
+ * thread_info struct, and that can be cached.
+ *
+ * An alternate way of dealing with this could be to use the EPSW.S bits to
+ * cache this information for systems with up to four CPUs.
+ */
+#define arch_smp_processor_id()	(CPUID)
+#if 0
+#define raw_smp_processor_id()	(arch_smp_processor_id())
+#else
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+#endif
+
+static inline int cpu_logical_map(int cpu)
+{
+	return cpu;
+}
+
+static inline int cpu_number_map(int cpu)
+{
+	return cpu;
+}
+
+
+extern cpumask_t cpu_boot_map;
+
+extern void smp_init_cpus(void);
+extern void smp_cache_interrupt(void);
+extern void send_IPI_allbutself(int irq);
+extern int smp_nmi_call_function(void (*func)(void *), void *info, int wait);
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern int __cpu_disable(void);
+extern void __cpu_die(unsigned int cpu);
+#endif /* CONFIG_HOTPLUG_CPU */
+
+#endif /* __ASSEMBLY__ */
+#else /* CONFIG_SMP */
+#ifndef __ASSEMBLY__
+
+static inline void smp_init_cpus(void) {}
+#define raw_smp_processor_id() 0
+
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_SMP */
+
+#endif /* _ASM_SMP_H */

arch/mn10300/include/asm/smsc911x.h

@@ -0,0 +1 @@
+#include <unit/smsc911x.h>

arch/mn10300/include/asm/spinlock.h

@@ -0,0 +1,193 @@
+/* MN10300 spinlock support
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_SPINLOCK_H
+#define _ASM_SPINLOCK_H
+
+#include <linux/atomic.h>
+#include <asm/rwlock.h>
+#include <asm/page.h>
+
+/*
+ * Simple spin lock operations.  There are two variants, one clears IRQ's
+ * on the local processor, one does not.
+ *
+ * We make no fairness assumptions. They have a cost.
+ */
+
+#define arch_spin_is_locked(x)	(*(volatile signed char *)(&(x)->slock) != 0)
+#define arch_spin_unlock_wait(x) do { barrier(); } while (arch_spin_is_locked(x))
+
+static inline void arch_spin_unlock(arch_spinlock_t *lock)
+{
+	asm volatile(
+		"	bclr	1,(0,%0)	\n"
+		:
+		: "a"(&lock->slock)
+		: "memory", "cc");
+}
+
+static inline int arch_spin_trylock(arch_spinlock_t *lock)
+{
+	int ret;
+
+	asm volatile(
+		"	mov	1,%0		\n"
+		"	bset	%0,(%1)		\n"
+		"	bne	1f		\n"
+		"	clr	%0		\n"
+		"1:	xor	1,%0		\n"
+		: "=d"(ret)
+		: "a"(&lock->slock)
+		: "memory", "cc");
+
+	return ret;
+}
+
+static inline void arch_spin_lock(arch_spinlock_t *lock)
+{
+	asm volatile(
+		"1:	bset	1,(0,%0)	\n"
+		"	bne	1b		\n"
+		:
+		: "a"(&lock->slock)
+		: "memory", "cc");
+}
+
+static inline void arch_spin_lock_flags(arch_spinlock_t *lock,
+					 unsigned long flags)
+{
+	int temp;
+
+	asm volatile(
+		"1:	bset	1,(0,%2)	\n"
+		"	beq	3f		\n"
+		"	mov	%1,epsw		\n"
+		"2:	mov	(0,%2),%0	\n"
+		"	or	%0,%0		\n"
+		"	bne	2b		\n"
+		"	mov	%3,%0		\n"
+		"	mov	%0,epsw		\n"
+		"	nop			\n"
+		"	nop			\n"
+		"	bra	1b\n"
+		"3:				\n"
+		: "=&d" (temp)
+		: "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL)
+		: "memory", "cc");
+}
+
+#ifdef __KERNEL__
+
+/*
+ * Read-write spinlocks, allowing multiple readers
+ * but only one writer.
+ *
+ * NOTE! it is quite common to have readers in interrupts
+ * but no interrupt writers. For those circumstances we
+ * can "mix" irq-safe locks - any writer needs to get a
+ * irq-safe write-lock, but readers can get non-irqsafe
+ * read-locks.
+ */
+
+/**
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define arch_read_can_lock(x) ((int)(x)->lock > 0)
+
+/**
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define arch_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
+
+/*
+ * On mn10300, we implement read-write locks as a 32-bit counter
+ * with the high bit (sign) being the "contended" bit.
+ */
+static inline void arch_read_lock(arch_rwlock_t *rw)
+{
+#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+	__build_read_lock(rw, "__read_lock_failed");
+#else
+	{
+		atomic_t *count = (atomic_t *)rw;
+		while (atomic_dec_return(count) < 0)
+			atomic_inc(count);
+	}
+#endif
+}
+
+static inline void arch_write_lock(arch_rwlock_t *rw)
+{
+#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+	__build_write_lock(rw, "__write_lock_failed");
+#else
+	{
+		atomic_t *count = (atomic_t *)rw;
+		while (!atomic_sub_and_test(RW_LOCK_BIAS, count))
+			atomic_add(RW_LOCK_BIAS, count);
+	}
+#endif
+}
+
+static inline void arch_read_unlock(arch_rwlock_t *rw)
+{
+#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+	__build_read_unlock(rw);
+#else
+	{
+		atomic_t *count = (atomic_t *)rw;
+		atomic_inc(count);
+	}
+#endif
+}
+
+static inline void arch_write_unlock(arch_rwlock_t *rw)
+{
+#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
+	__build_write_unlock(rw);
+#else
+	{
+		atomic_t *count = (atomic_t *)rw;
+		atomic_add(RW_LOCK_BIAS, count);
+	}
+#endif
+}
+
+static inline int arch_read_trylock(arch_rwlock_t *lock)
+{
+	atomic_t *count = (atomic_t *)lock;
+	atomic_dec(count);
+	if (atomic_read(count) >= 0)
+		return 1;
+	atomic_inc(count);
+	return 0;
+}
+
+static inline int arch_write_trylock(arch_rwlock_t *lock)
+{
+	atomic_t *count = (atomic_t *)lock;
+	if (atomic_sub_and_test(RW_LOCK_BIAS, count))
+		return 1;
+	atomic_add(RW_LOCK_BIAS, count);
+	return 0;
+}
+
+#define arch_read_lock_flags(lock, flags)  arch_read_lock(lock)
+#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
+
+#define _raw_spin_relax(lock)	cpu_relax()
+#define _raw_read_relax(lock)	cpu_relax()
+#define _raw_write_relax(lock)	cpu_relax()
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_SPINLOCK_H */

arch/mn10300/include/asm/spinlock_types.h

@@ -0,0 +1,20 @@
+#ifndef _ASM_SPINLOCK_TYPES_H
+#define _ASM_SPINLOCK_TYPES_H
+
+#ifndef __LINUX_SPINLOCK_TYPES_H
+# error "please don't include this file directly"
+#endif
+
+typedef struct arch_spinlock {
+	unsigned int slock;
+} arch_spinlock_t;
+
+#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
+
+typedef struct {
+	unsigned int lock;
+} arch_rwlock_t;
+
+#define __ARCH_RW_LOCK_UNLOCKED		{ RW_LOCK_BIAS }
+
+#endif /* _ASM_SPINLOCK_TYPES_H */

arch/mn10300/include/asm/string.h

@@ -0,0 +1,32 @@
+/* MN10300 Optimised string functions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Modified by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_STRING_H
+#define _ASM_STRING_H
+
+#define __HAVE_ARCH_MEMSET
+#define __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMMOVE
+
+extern void *memset(void *dest, int ch, size_t count);
+extern void *memcpy(void *dest, const void *src, size_t count);
+extern void *memmove(void *dest, const void *src, size_t count);
+
+
+extern void __struct_cpy_bug(void);
+#define struct_cpy(x, y)			\
+({                                              \
+	if (sizeof(*(x)) != sizeof(*(y)))       \
+		__struct_cpy_bug;               \
+	memcpy(x, y, sizeof(*(x)));             \
+})
+
+#endif /* _ASM_STRING_H */

arch/mn10300/include/asm/switch_to.h

@@ -0,0 +1,49 @@
+/* MN10300 task switching definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_SWITCH_TO_H
+#define _ASM_SWITCH_TO_H
+
+#include <asm/barrier.h>
+
+struct task_struct;
+struct thread_struct;
+
+#if !defined(CONFIG_LAZY_SAVE_FPU)
+struct fpu_state_struct;
+extern asmlinkage void fpu_save(struct fpu_state_struct *);
+#define switch_fpu(prev, next)						\
+	do {								\
+		if ((prev)->thread.fpu_flags & THREAD_HAS_FPU) {	\
+			(prev)->thread.fpu_flags &= ~THREAD_HAS_FPU;	\
+			(prev)->thread.uregs->epsw &= ~EPSW_FE;		\
+			fpu_save(&(prev)->thread.fpu_state);		\
+		}							\
+	} while (0)
+#else
+#define switch_fpu(prev, next) do {} while (0)
+#endif
+
+/* context switching is now performed out-of-line in switch_to.S */
+extern asmlinkage
+struct task_struct *__switch_to(struct thread_struct *prev,
+				struct thread_struct *next,
+				struct task_struct *prev_task);
+
+#define switch_to(prev, next, last)					\
+do {									\
+	switch_fpu(prev, next);						\
+	current->thread.wchan = (u_long) __builtin_return_address(0);	\
+	(last) = __switch_to(&(prev)->thread, &(next)->thread, (prev));	\
+	mb();								\
+	current->thread.wchan = 0;					\
+} while (0)
+
+#endif /* _ASM_SWITCH_TO_H */

arch/mn10300/include/asm/syscall.h

@@ -0,0 +1,117 @@
+/* Access to user system call parameters and results
+ *
+ * See asm-generic/syscall.h for function descriptions.
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_SYSCALL_H
+#define _ASM_SYSCALL_H
+
+#include <linux/sched.h>
+#include <linux/err.h>
+
+extern const unsigned long sys_call_table[];
+
+static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
+{
+	return regs->orig_d0;
+}
+
+static inline void syscall_rollback(struct task_struct *task,
+				    struct pt_regs *regs)
+{
+	regs->d0 = regs->orig_d0;
+}
+
+static inline long syscall_get_error(struct task_struct *task,
+				     struct pt_regs *regs)
+{
+	unsigned long error = regs->d0;
+	return IS_ERR_VALUE(error) ? error : 0;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+					    struct pt_regs *regs)
+{
+	return regs->d0;
+}
+
+static inline void syscall_set_return_value(struct task_struct *task,
+					    struct pt_regs *regs,
+					    int error, long val)
+{
+	regs->d0 = (long) error ?: val;
+}
+
+static inline void syscall_get_arguments(struct task_struct *task,
+					 struct pt_regs *regs,
+					 unsigned int i, unsigned int n,
+					 unsigned long *args)
+{
+	switch (i) {
+	case 0:
+		if (!n--) break;
+		*args++ = regs->a0;
+	case 1:
+		if (!n--) break;
+		*args++ = regs->d1;
+	case 2:
+		if (!n--) break;
+		*args++ = regs->a3;
+	case 3:
+		if (!n--) break;
+		*args++ = regs->a2;
+	case 4:
+		if (!n--) break;
+		*args++ = regs->d3;
+	case 5:
+		if (!n--) break;
+		*args++ = regs->d2;
+	case 6:
+		if (!n--) break;
+	default:
+		BUG();
+		break;
+	}
+}
+
+static inline void syscall_set_arguments(struct task_struct *task,
+					 struct pt_regs *regs,
+					 unsigned int i, unsigned int n,
+					 const unsigned long *args)
+{
+	switch (i) {
+	case 0:
+		if (!n--) break;
+		regs->a0 = *args++;
+	case 1:
+		if (!n--) break;
+		regs->d1 = *args++;
+	case 2:
+		if (!n--) break;
+		regs->a3 = *args++;
+	case 3:
+		if (!n--) break;
+		regs->a2 = *args++;
+	case 4:
+		if (!n--) break;
+		regs->d3 = *args++;
+	case 5:
+		if (!n--) break;
+		regs->d2 = *args++;
+	case 6:
+		if (!n--) break;
+	default:
+		BUG();
+		break;
+	}
+}
+
+#endif /* _ASM_SYSCALL_H */

arch/mn10300/include/asm/termios.h

@@ -0,0 +1,13 @@
+#ifndef _ASM_TERMIOS_H
+#define _ASM_TERMIOS_H
+
+#include <uapi/asm/termios.h>
+
+/*	intr=^C		quit=^|		erase=del	kill=^U
+	eof=^D		vtime=\0	vmin=\1		sxtc=\0
+	start=^Q	stop=^S		susp=^Z		eol=\0
+	reprint=^R	discard=^U	werase=^W	lnext=^V
+	eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#endif	/* _ASM_TERMIOS_H */

arch/mn10300/include/asm/thread_info.h

@@ -0,0 +1,168 @@
+/* MN10300 Low-level thread information
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_THREAD_INFO_H
+#define _ASM_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#include <asm/page.h>
+
+#ifdef CONFIG_4KSTACKS
+#define THREAD_SIZE		(4096)
+#define THREAD_SIZE_ORDER	(0)
+#else
+#define THREAD_SIZE		(8192)
+#define THREAD_SIZE_ORDER	(1)
+#endif
+
+#define STACK_WARN		(THREAD_SIZE / 8)
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants
+ *   must also be changed
+ */
+#ifndef __ASSEMBLY__
+typedef struct {
+	unsigned long	seg;
+} mm_segment_t;
+
+struct thread_info {
+	struct task_struct	*task;		/* main task structure */
+	struct exec_domain	*exec_domain;	/* execution domain */
+	struct pt_regs		*frame;		/* current exception frame */
+	unsigned long		flags;		/* low level flags */
+	__u32			cpu;		/* current CPU */
+	__s32			preempt_count;	/* 0 => preemptable, <0 => BUG */
+
+	mm_segment_t		addr_limit;	/* thread address space:
+						   0-0xBFFFFFFF for user-thead
+						   0-0xFFFFFFFF for kernel-thread
+						*/
+	struct restart_block    restart_block;
+
+	__u8			supervisor_stack[0];
+};
+
+#define thread_info_to_uregs(ti)					\
+	((struct pt_regs *)						\
+	 ((unsigned long)ti + THREAD_SIZE - sizeof(struct pt_regs)))
+
+#else /* !__ASSEMBLY__ */
+
+#ifndef __ASM_OFFSETS_H__
+#include <asm/asm-offsets.h>
+#endif
+
+#endif
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ */
+#ifndef __ASSEMBLY__
+
+#define INIT_THREAD_INFO(tsk)			\
+{						\
+	.task		= &tsk,			\
+	.exec_domain	= &default_exec_domain,	\
+	.flags		= 0,			\
+	.cpu		= 0,			\
+	.preempt_count	= INIT_PREEMPT_COUNT,	\
+	.addr_limit	= KERNEL_DS,		\
+	.restart_block = {			\
+		.fn = do_no_restart_syscall,	\
+	},					\
+}
+
+#define init_thread_info	(init_thread_union.thread_info)
+#define init_stack		(init_thread_union.stack)
+#define init_uregs							\
+	((struct pt_regs *)						\
+	 ((unsigned long) init_stack + THREAD_SIZE - sizeof(struct pt_regs)))
+
+extern struct thread_info *__current_ti;
+
+/* how to get the thread information struct from C */
+static inline __attribute__((const))
+struct thread_info *current_thread_info(void)
+{
+	struct thread_info *ti;
+	asm("mov sp,%0\n"
+	    "and %1,%0\n"
+	    : "=d" (ti)
+	    : "i" (~(THREAD_SIZE - 1))
+	    : "cc");
+	return ti;
+}
+
+static inline __attribute__((const))
+struct pt_regs *current_frame(void)
+{
+	return current_thread_info()->frame;
+}
+
+/* how to get the current stack pointer from C */
+static inline unsigned long current_stack_pointer(void)
+{
+	unsigned long sp;
+	asm("mov sp,%0; ":"=r" (sp));
+	return sp;
+}
+
+#ifndef CONFIG_KGDB
+void arch_release_thread_info(struct thread_info *ti);
+#endif
+#define get_thread_info(ti)	get_task_struct((ti)->task)
+#define put_thread_info(ti)	put_task_struct((ti)->task)
+
+#else /* !__ASSEMBLY__ */
+
+#ifndef __VMLINUX_LDS__
+/* how to get the thread information struct from ASM */
+.macro GET_THREAD_INFO reg
+	mov	sp,\reg
+	and	-THREAD_SIZE,\reg
+.endm
+#endif
+#endif
+
+/*
+ * thread information flags
+ * - these are process state flags that various assembly files may need to
+ *   access
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
+#define TIF_NOTIFY_RESUME	1	/* resumption notification requested */
+#define TIF_SIGPENDING		2	/* signal pending */
+#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
+#define TIF_SINGLESTEP		4	/* restore singlestep on return to user mode */
+#define TIF_RESTORE_SIGMASK	5	/* restore signal mask in do_signal() */
+#define TIF_POLLING_NRFLAG	16	/* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_MEMDIE		17	/* is terminating due to OOM killer */
+
+#define _TIF_SYSCALL_TRACE	+(1 << TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME	+(1 << TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING		+(1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED	+(1 << TIF_NEED_RESCHED)
+#define _TIF_SINGLESTEP		+(1 << TIF_SINGLESTEP)
+#define _TIF_POLLING_NRFLAG	+(1 << TIF_POLLING_NRFLAG)
+
+#define _TIF_WORK_MASK		0x0000FFFE	/* work to do on interrupt/exception return */
+#define _TIF_ALLWORK_MASK	0x0000FFFF	/* work to do on any return to u-space */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_THREAD_INFO_H */

arch/mn10300/include/asm/timer-regs.h

@@ -0,0 +1,452 @@
+/* AM33v2 on-board timer module registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_TIMER_REGS_H
+#define _ASM_TIMER_REGS_H
+
+#include <asm/cpu-regs.h>
+#include <asm/intctl-regs.h>
+
+#ifdef __KERNEL__
+
+/*
+ * Timer prescalar control
+ */
+#define	TMPSCNT			__SYSREG(0xd4003071, u8) /* timer prescaler control */
+#define	TMPSCNT_ENABLE		0x80	/* timer prescaler enable */
+#define	TMPSCNT_DISABLE		0x00	/* timer prescaler disable */
+
+/*
+ * 8-bit timers
+ */
+#define	TM0MD			__SYSREG(0xd4003000, u8) /* timer 0 mode register */
+#define	TM0MD_SRC		0x07	/* timer source */
+#define	TM0MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM0MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM0MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM0MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM0MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if	defined(CONFIG_AM33_2)
+#define	TM0MD_SRC_TM2IO		0x03	/* - TM2IO pin input */
+#define	TM0MD_SRC_TM0IO		0x07	/* - TM0IO pin input */
+#endif /* CONFIG_AM33_2 */
+#define	TM0MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM0MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM1MD			__SYSREG(0xd4003001, u8) /* timer 1 mode register */
+#define	TM1MD_SRC		0x07	/* timer source */
+#define	TM1MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM1MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM1MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM1MD_SRC_TM0CASCADE	0x03	/* - cascade with timer 0 */
+#define	TM1MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM1MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM1MD_SRC_TM1IO		0x07	/* - TM1IO pin input */
+#endif	/* CONFIG_AM33_2 */
+#define	TM1MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM1MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM2MD			__SYSREG(0xd4003002, u8) /* timer 2 mode register */
+#define	TM2MD_SRC		0x07	/* timer source */
+#define	TM2MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM2MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM2MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM2MD_SRC_TM1CASCADE	0x03	/* - cascade with timer 1 */
+#define	TM2MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM2MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM2MD_SRC_TM2IO		0x07	/* - TM2IO pin input */
+#endif	/* CONFIG_AM33_2 */
+#define	TM2MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM2MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM3MD			__SYSREG(0xd4003003, u8) /* timer 3 mode register */
+#define	TM3MD_SRC		0x07	/* timer source */
+#define	TM3MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM3MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM3MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM3MD_SRC_TM2CASCADE	0x03	/* - cascade with timer 2 */
+#define	TM3MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM3MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM3MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM3MD_SRC_TM3IO		0x07	/* - TM3IO pin input */
+#endif	/* CONFIG_AM33_2 */
+#define	TM3MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM3MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM01MD			__SYSREG(0xd4003000, u16)  /* timer 0:1 mode register */
+
+#define	TM0BR			__SYSREG(0xd4003010, u8)   /* timer 0 base register */
+#define	TM1BR			__SYSREG(0xd4003011, u8)   /* timer 1 base register */
+#define	TM2BR			__SYSREG(0xd4003012, u8)   /* timer 2 base register */
+#define	TM3BR			__SYSREG(0xd4003013, u8)   /* timer 3 base register */
+#define	TM01BR			__SYSREG(0xd4003010, u16)  /* timer 0:1 base register */
+
+#define	TM0BC			__SYSREGC(0xd4003020, u8)  /* timer 0 binary counter */
+#define	TM1BC			__SYSREGC(0xd4003021, u8)  /* timer 1 binary counter */
+#define	TM2BC			__SYSREGC(0xd4003022, u8)  /* timer 2 binary counter */
+#define	TM3BC			__SYSREGC(0xd4003023, u8)  /* timer 3 binary counter */
+#define	TM01BC			__SYSREGC(0xd4003020, u16) /* timer 0:1 binary counter */
+
+#define TM0IRQ			2	/* timer 0 IRQ */
+#define TM1IRQ			3	/* timer 1 IRQ */
+#define TM2IRQ			4	/* timer 2 IRQ */
+#define TM3IRQ			5	/* timer 3 IRQ */
+
+#define	TM0ICR			GxICR(TM0IRQ)	/* timer 0 uflow intr ctrl reg */
+#define	TM1ICR			GxICR(TM1IRQ)	/* timer 1 uflow intr ctrl reg */
+#define	TM2ICR			GxICR(TM2IRQ)	/* timer 2 uflow intr ctrl reg */
+#define	TM3ICR			GxICR(TM3IRQ)	/* timer 3 uflow intr ctrl reg */
+
+/*
+ * 16-bit timers 4,5 & 7-15
+ */
+#define	TM4MD			__SYSREG(0xd4003080, u8)   /* timer 4 mode register */
+#define	TM4MD_SRC		0x07	/* timer source */
+#define	TM4MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM4MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM4MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM4MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM4MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM4MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM4MD_SRC_TM4IO		0x07	/* - TM4IO pin input */
+#endif	/* CONFIG_AM33_2 */
+#define	TM4MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM4MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM5MD			__SYSREG(0xd4003082, u8)   /* timer 5 mode register */
+#define	TM5MD_SRC		0x07	/* timer source */
+#define	TM5MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM5MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM5MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM5MD_SRC_TM4CASCADE	0x03	/* - cascade with timer 4 */
+#define	TM5MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM5MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM5MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM5MD_SRC_TM5IO		0x07	/* - TM5IO pin input */
+#else	/* !CONFIG_AM33_2 */
+#define	TM5MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#endif	/* CONFIG_AM33_2 */
+#define	TM5MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM5MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM7MD			__SYSREG(0xd4003086, u8)   /* timer 7 mode register */
+#define	TM7MD_SRC		0x07	/* timer source */
+#define	TM7MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM7MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM7MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM7MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM7MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM7MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM7MD_SRC_TM7IO		0x07	/* - TM7IO pin input */
+#endif	/* CONFIG_AM33_2 */
+#define	TM7MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM7MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM8MD			__SYSREG(0xd4003088, u8)   /* timer 8 mode register */
+#define	TM8MD_SRC		0x07	/* timer source */
+#define	TM8MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM8MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM8MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM8MD_SRC_TM7CASCADE	0x03	/* - cascade with timer 7 */
+#define	TM8MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM8MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM8MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM8MD_SRC_TM8IO		0x07	/* - TM8IO pin input */
+#else	/* !CONFIG_AM33_2 */
+#define	TM8MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#endif	/* CONFIG_AM33_2 */
+#define	TM8MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM8MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM9MD			__SYSREG(0xd400308a, u8)   /* timer 9 mode register */
+#define	TM9MD_SRC		0x07	/* timer source */
+#define	TM9MD_SRC_IOCLK		0x00	/* - IOCLK */
+#define	TM9MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM9MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM9MD_SRC_TM8CASCADE	0x03	/* - cascade with timer 8 */
+#define	TM9MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM9MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM9MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM9MD_SRC_TM9IO		0x07	/* - TM9IO pin input */
+#else	/* !CONFIG_AM33_2 */
+#define	TM9MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#endif	/* CONFIG_AM33_2 */
+#define	TM9MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM9MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM10MD			__SYSREG(0xd400308c, u8)   /* timer 10 mode register */
+#define	TM10MD_SRC		0x07	/* timer source */
+#define	TM10MD_SRC_IOCLK	0x00	/* - IOCLK */
+#define	TM10MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM10MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM10MD_SRC_TM9CASCADE	0x03	/* - cascade with timer 9 */
+#define	TM10MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM10MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM10MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM10MD_SRC_TM10IO	0x07	/* - TM10IO pin input */
+#else	/* !CONFIG_AM33_2 */
+#define	TM10MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#endif	/* CONFIG_AM33_2 */
+#define	TM10MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM10MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM11MD			__SYSREG(0xd400308e, u8)   /* timer 11 mode register */
+#define	TM11MD_SRC		0x07	/* timer source */
+#define	TM11MD_SRC_IOCLK	0x00	/* - IOCLK */
+#define	TM11MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM11MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM11MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM11MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM11MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+#define	TM11MD_SRC_TM11IO	0x07	/* - TM11IO pin input */
+#else	/* !CONFIG_AM33_2 */
+#define	TM11MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#endif	/* CONFIG_AM33_2 */
+#define	TM11MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM11MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#if defined(CONFIG_AM34_2)
+#define	TM12MD			__SYSREG(0xd4003180, u8)   /* timer 11 mode register */
+#define	TM12MD_SRC		0x07	/* timer source */
+#define	TM12MD_SRC_IOCLK	0x00	/* - IOCLK */
+#define	TM12MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM12MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM12MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM12MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM12MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#define	TM12MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#define	TM12MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM12MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM13MD			__SYSREG(0xd4003182, u8)   /* timer 11 mode register */
+#define	TM13MD_SRC		0x07	/* timer source */
+#define	TM13MD_SRC_IOCLK	0x00	/* - IOCLK */
+#define	TM13MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM13MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM13MD_SRC_TM12CASCADE	0x03	/* - cascade with timer 12 */
+#define	TM13MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM13MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM13MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#define	TM13MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#define	TM13MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM13MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM14MD			__SYSREG(0xd4003184, u8)   /* timer 11 mode register */
+#define	TM14MD_SRC		0x07	/* timer source */
+#define	TM14MD_SRC_IOCLK	0x00	/* - IOCLK */
+#define	TM14MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM14MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM14MD_SRC_TM13CASCADE	0x03	/* - cascade with timer 13 */
+#define	TM14MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM14MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM14MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#define	TM14MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#define	TM14MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM14MD_COUNT_ENABLE	0x80	/* timer count enable */
+
+#define	TM15MD			__SYSREG(0xd4003186, u8)   /* timer 11 mode register */
+#define	TM15MD_SRC		0x07	/* timer source */
+#define	TM15MD_SRC_IOCLK	0x00	/* - IOCLK */
+#define	TM15MD_SRC_IOCLK_8	0x01	/* - 1/8 IOCLK */
+#define	TM15MD_SRC_IOCLK_32	0x02	/* - 1/32 IOCLK */
+#define	TM15MD_SRC_TM0UFLOW	0x04	/* - timer 0 underflow */
+#define	TM15MD_SRC_TM1UFLOW	0x05	/* - timer 1 underflow */
+#define	TM15MD_SRC_TM2UFLOW	0x06	/* - timer 2 underflow */
+#define	TM15MD_SRC_TM7UFLOW	0x07	/* - timer 7 underflow */
+#define	TM15MD_INIT_COUNTER	0x40	/* initialize TMnBC = TMnBR */
+#define	TM15MD_COUNT_ENABLE	0x80	/* timer count enable */
+#endif	/* CONFIG_AM34_2 */
+
+
+#define	TM4BR			__SYSREG(0xd4003090, u16)  /* timer 4 base register */
+#define	TM5BR			__SYSREG(0xd4003092, u16)  /* timer 5 base register */
+#define	TM45BR			__SYSREG(0xd4003090, u32)  /* timer 4:5 base register */
+#define	TM7BR			__SYSREG(0xd4003096, u16)  /* timer 7 base register */
+#define	TM8BR			__SYSREG(0xd4003098, u16)  /* timer 8 base register */
+#define	TM9BR			__SYSREG(0xd400309a, u16)  /* timer 9 base register */
+#define	TM89BR			__SYSREG(0xd4003098, u32)  /* timer 8:9 base register */
+#define	TM10BR			__SYSREG(0xd400309c, u16)  /* timer 10 base register */
+#define	TM11BR			__SYSREG(0xd400309e, u16)  /* timer 11 base register */
+#if defined(CONFIG_AM34_2)
+#define	TM12BR			__SYSREG(0xd4003190, u16)  /* timer 12 base register */
+#define	TM13BR			__SYSREG(0xd4003192, u16)  /* timer 13 base register */
+#define	TM14BR			__SYSREG(0xd4003194, u16)  /* timer 14 base register */
+#define	TM15BR			__SYSREG(0xd4003196, u16)  /* timer 15 base register */
+#endif	/* CONFIG_AM34_2 */
+
+#define	TM4BC			__SYSREG(0xd40030a0, u16)  /* timer 4 binary counter */
+#define	TM5BC			__SYSREG(0xd40030a2, u16)  /* timer 5 binary counter */
+#define	TM45BC			__SYSREG(0xd40030a0, u32)  /* timer 4:5 binary counter */
+#define	TM7BC			__SYSREG(0xd40030a6, u16)  /* timer 7 binary counter */
+#define	TM8BC			__SYSREG(0xd40030a8, u16)  /* timer 8 binary counter */
+#define	TM9BC			__SYSREG(0xd40030aa, u16)  /* timer 9 binary counter */
+#define	TM89BC			__SYSREG(0xd40030a8, u32)  /* timer 8:9 binary counter */
+#define	TM10BC			__SYSREG(0xd40030ac, u16)  /* timer 10 binary counter */
+#define	TM11BC			__SYSREG(0xd40030ae, u16)  /* timer 11 binary counter */
+#if defined(CONFIG_AM34_2)
+#define	TM12BC			__SYSREG(0xd40031a0, u16)  /* timer 12 binary counter */
+#define	TM13BC			__SYSREG(0xd40031a2, u16)  /* timer 13 binary counter */
+#define	TM14BC			__SYSREG(0xd40031a4, u16)  /* timer 14 binary counter */
+#define	TM15BC			__SYSREG(0xd40031a6, u16)  /* timer 15 binary counter */
+#endif	/* CONFIG_AM34_2 */
+
+#define TM4IRQ			6	/* timer 4 IRQ */
+#define TM5IRQ			7	/* timer 5 IRQ */
+#define TM7IRQ			11	/* timer 7 IRQ */
+#define TM8IRQ			12	/* timer 8 IRQ */
+#define TM9IRQ			13	/* timer 9 IRQ */
+#define TM10IRQ			14	/* timer 10 IRQ */
+#define TM11IRQ			15	/* timer 11 IRQ */
+#if defined(CONFIG_AM34_2)
+#define TM12IRQ			64	/* timer 12 IRQ */
+#define TM13IRQ			65	/* timer 13 IRQ */
+#define TM14IRQ			66	/* timer 14 IRQ */
+#define TM15IRQ			67	/* timer 15 IRQ */
+#endif	/* CONFIG_AM34_2 */
+
+#define	TM4ICR			GxICR(TM4IRQ)	/* timer 4 uflow intr ctrl reg */
+#define	TM5ICR			GxICR(TM5IRQ)	/* timer 5 uflow intr ctrl reg */
+#define	TM7ICR			GxICR(TM7IRQ)	/* timer 7 uflow intr ctrl reg */
+#define	TM8ICR			GxICR(TM8IRQ)	/* timer 8 uflow intr ctrl reg */
+#define	TM9ICR			GxICR(TM9IRQ)	/* timer 9 uflow intr ctrl reg */
+#define	TM10ICR			GxICR(TM10IRQ)	/* timer 10 uflow intr ctrl reg */
+#define	TM11ICR			GxICR(TM11IRQ)	/* timer 11 uflow intr ctrl reg */
+#if defined(CONFIG_AM34_2)
+#define	TM12ICR			GxICR(TM12IRQ)	/* timer 12 uflow intr ctrl reg */
+#define	TM13ICR			GxICR(TM13IRQ)	/* timer 13 uflow intr ctrl reg */
+#define	TM14ICR			GxICR(TM14IRQ)	/* timer 14 uflow intr ctrl reg */
+#define	TM15ICR			GxICR(TM15IRQ)	/* timer 15 uflow intr ctrl reg */
+#endif	/* CONFIG_AM34_2 */
+
+/*
+ * 16-bit timer 6
+ */
+#define	TM6MD			__SYSREG(0xd4003084, u16)  /* timer6 mode register */
+#define	TM6MD_SRC		0x0007	/* timer source */
+#define	TM6MD_SRC_IOCLK		0x0000	/* - IOCLK */
+#define	TM6MD_SRC_IOCLK_8	0x0001	/* - 1/8 IOCLK */
+#define	TM6MD_SRC_IOCLK_32	0x0002	/* - 1/32 IOCLK */
+#define	TM6MD_SRC_TM0UFLOW	0x0004	/* - timer 0 underflow */
+#define	TM6MD_SRC_TM1UFLOW	0x0005	/* - timer 1 underflow */
+#define	TM6MD_SRC_TM2UFLOW	0x0006	/* - timer 2 underflow */
+#if defined(CONFIG_AM33_2)
+/* #define	TM6MD_SRC_TM6IOB_BOTH	0x0006 */	/* - TM6IOB pin input (both edges) */
+#define	TM6MD_SRC_TM6IOB_SINGLE	0x0007	/* - TM6IOB pin input (single edge) */
+#endif	/* CONFIG_AM33_2 */
+#define	TM6MD_ONESHOT_ENABLE	0x0040	/* oneshot count */
+#define	TM6MD_CLR_ENABLE	0x0010	/* clear count enable */
+#if	defined(CONFIG_AM33_2)
+#define	TM6MD_TRIG_ENABLE	0x0080	/* TM6IOB pin trigger enable */
+#define TM6MD_PWM		0x3800	/* PWM output mode */
+#define TM6MD_PWM_DIS		0x0000	/* - disabled */
+#define	TM6MD_PWM_10BIT		0x1000	/* - 10 bits mode */
+#define	TM6MD_PWM_11BIT		0x1800	/* - 11 bits mode */
+#define	TM6MD_PWM_12BIT		0x3000	/* - 12 bits mode */
+#define	TM6MD_PWM_14BIT		0x3800	/* - 14 bits mode */
+#endif	/* CONFIG_AM33_2 */
+
+#define	TM6MD_INIT_COUNTER	0x4000	/* initialize TMnBC to zero */
+#define	TM6MD_COUNT_ENABLE	0x8000	/* timer count enable */
+
+#define	TM6MDA			__SYSREG(0xd40030b4, u8)   /* timer6 cmp/cap A mode reg */
+#define	TM6MDA_MODE_CMP_SINGLE	0x00	/* - compare, single buffer mode */
+#define	TM6MDA_MODE_CMP_DOUBLE	0x40	/* - compare, double buffer mode */
+#if	defined(CONFIG_AM33_2)
+#define TM6MDA_OUT		0x07	/* output select */
+#define	TM6MDA_OUT_SETA_RESETB	0x00	/* - set at match A, reset at match B */
+#define	TM6MDA_OUT_SETA_RESETOV	0x01	/* - set at match A, reset at overflow */
+#define	TM6MDA_OUT_SETA		0x02	/* - set at match A */
+#define	TM6MDA_OUT_RESETA	0x03	/* - reset at match A */
+#define	TM6MDA_OUT_TOGGLE	0x04	/* - toggle on match A */
+#define TM6MDA_MODE		0xc0	/* compare A register mode */
+#define	TM6MDA_MODE_CAP_S_EDGE	0x80	/* - capture, single edge mode */
+#define	TM6MDA_MODE_CAP_D_EDGE	0xc0	/* - capture, double edge mode */
+#define TM6MDA_EDGE		0x20	/* compare A edge select */
+#define	TM6MDA_EDGE_FALLING	0x00	/* capture on falling edge */
+#define	TM6MDA_EDGE_RISING	0x20	/* capture on rising edge */
+#define	TM6MDA_CAPTURE_ENABLE	0x10	/* capture enable */
+#else	/* !CONFIG_AM33_2 */
+#define	TM6MDA_MODE		0x40	/* compare A register mode */
+#endif	/* CONFIG_AM33_2 */
+
+#define	TM6MDB			__SYSREG(0xd40030b5, u8)   /* timer6 cmp/cap B mode reg */
+#define	TM6MDB_MODE_CMP_SINGLE	0x00	/* - compare, single buffer mode */
+#define	TM6MDB_MODE_CMP_DOUBLE	0x40	/* - compare, double buffer mode */
+#if defined(CONFIG_AM33_2)
+#define TM6MDB_OUT		0x07	/* output select */
+#define	TM6MDB_OUT_SETB_RESETA	0x00	/* - set at match B, reset at match A */
+#define	TM6MDB_OUT_SETB_RESETOV	0x01	/* - set at match B */
+#define	TM6MDB_OUT_RESETB	0x03	/* - reset at match B */
+#define	TM6MDB_OUT_TOGGLE	0x04	/* - toggle on match B */
+#define TM6MDB_MODE		0xc0	/* compare B register mode */
+#define	TM6MDB_MODE_CAP_S_EDGE	0x80	/* - capture, single edge mode */
+#define	TM6MDB_MODE_CAP_D_EDGE	0xc0	/* - capture, double edge mode */
+#define TM6MDB_EDGE		0x20	/* compare B edge select */
+#define	TM6MDB_EDGE_FALLING	0x00	/* capture on falling edge */
+#define	TM6MDB_EDGE_RISING	0x20	/* capture on rising edge */
+#define	TM6MDB_CAPTURE_ENABLE	0x10	/* capture enable */
+#else	/* !CONFIG_AM33_2 */
+#define	TM6MDB_MODE		0x40	/* compare B register mode */
+#endif	/* CONFIG_AM33_2 */
+
+#define	TM6CA			__SYSREG(0xd40030c4, u16)   /* timer6 cmp/capture reg A */
+#define	TM6CB			__SYSREG(0xd40030d4, u16)   /* timer6 cmp/capture reg B */
+#define	TM6BC			__SYSREG(0xd40030a4, u16)   /* timer6 binary counter */
+
+#define TM6IRQ			6	/* timer 6 IRQ */
+#define TM6AIRQ			9	/* timer 6A IRQ */
+#define TM6BIRQ			10	/* timer 6B IRQ */
+
+#define	TM6ICR			GxICR(TM6IRQ)	/* timer 6 uflow intr ctrl reg */
+#define	TM6AICR			GxICR(TM6AIRQ)	/* timer 6A intr control reg */
+#define	TM6BICR			GxICR(TM6BIRQ)	/* timer 6B intr control reg */
+
+#if defined(CONFIG_AM34_2)
+/*
+ * MTM: OS Tick-Timer
+ */
+#define	TMTMD			__SYSREG(0xd4004100, u8)	/* Tick Timer mode register */
+#define	TMTMD_TMTLDE		0x40	/* initialize TMTBC = TMTBR */
+#define	TMTMD_TMTCNE		0x80	/* timer count enable       */
+
+#define	TMTBR			__SYSREG(0xd4004110, u32)	/* Tick Timer mode reg */
+#define	TMTBC			__SYSREG(0xd4004120, u32)	/* Tick Timer mode reg */
+
+/*
+ * MTM: OS Timestamp-Timer
+ */
+#define	TMSMD			__SYSREG(0xd4004140, u8)	/* Tick Timer mode register */
+#define	TMSMD_TMSLDE		0x40		/* initialize TMSBC = TMSBR */
+#define	TMSMD_TMSCNE		0x80		/* timer count enable       */
+
+#define	TMSBR			__SYSREG(0xd4004150, u32)	/* Tick Timer mode register */
+#define	TMSBC			__SYSREG(0xd4004160, u32)	/* Tick Timer mode register */
+
+#define TMTIRQ			119		/* OS Tick timer   IRQ */
+#define TMSIRQ			120		/* Timestamp timer IRQ */
+
+#define	TMTICR			GxICR(TMTIRQ)	/* OS Tick timer   uflow intr ctrl reg */
+#define	TMSICR			GxICR(TMSIRQ)	/* Timestamp timer uflow intr ctrl reg */
+#endif	/* CONFIG_AM34_2 */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_TIMER_REGS_H */

arch/mn10300/include/asm/timex.h

@@ -0,0 +1,34 @@
+/* MN10300 Architecture time management specifications
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_TIMEX_H
+#define _ASM_TIMEX_H
+
+#include <unit/timex.h>
+
+#define TICK_SIZE (tick_nsec / 1000)
+
+#define CLOCK_TICK_RATE MN10300_JCCLK /* Underlying HZ */
+
+#ifdef __KERNEL__
+
+extern cycles_t cacheflush_time;
+
+static inline cycles_t get_cycles(void)
+{
+	return read_timestamp_counter();
+}
+
+extern int init_clockevents(void);
+extern int init_clocksource(void);
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_TIMEX_H */

arch/mn10300/include/asm/tlb.h

@@ -0,0 +1,34 @@
+/* MN10300 TLB definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_TLB_H
+#define _ASM_TLB_H
+
+#include <asm/tlbflush.h>
+
+extern void check_pgt_cache(void);
+
+/*
+ * we don't need any special per-pte or per-vma handling...
+ */
+#define tlb_start_vma(tlb, vma)				do { } while (0)
+#define tlb_end_vma(tlb, vma)				do { } while (0)
+#define __tlb_remove_tlb_entry(tlb, ptep, address)	do { } while (0)
+
+/*
+ * .. because we flush the whole mm when it fills up
+ */
+#define tlb_flush(tlb)	flush_tlb_mm((tlb)->mm)
+
+/* for now, just use the generic stuff */
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_TLB_H */

arch/mn10300/include/asm/tlbflush.h

@@ -0,0 +1,154 @@
+/* MN10300 TLB flushing functions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_TLBFLUSH_H
+#define _ASM_TLBFLUSH_H
+
+#include <linux/mm.h>
+#include <asm/processor.h>
+
+struct tlb_state {
+	struct mm_struct	*active_mm;
+	int			state;
+};
+DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate);
+
+/**
+ * local_flush_tlb - Flush the current MM's entries from the local CPU's TLBs
+ */
+static inline void local_flush_tlb(void)
+{
+	int w;
+	asm volatile(
+		"	mov	%1,%0		\n"
+		"	or	%2,%0		\n"
+		"	mov	%0,%1		\n"
+		: "=d"(w)
+		: "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV)
+		: "cc", "memory");
+}
+
+/**
+ * local_flush_tlb_all - Flush all entries from the local CPU's TLBs
+ */
+static inline void local_flush_tlb_all(void)
+{
+	local_flush_tlb();
+}
+
+/**
+ * local_flush_tlb_one - Flush one entry from the local CPU's TLBs
+ */
+static inline void local_flush_tlb_one(unsigned long addr)
+{
+	local_flush_tlb();
+}
+
+/**
+ * local_flush_tlb_page - Flush a page's entry from the local CPU's TLBs
+ * @mm: The MM to flush for
+ * @addr: The address of the target page in RAM (not its page struct)
+ */
+static inline
+void local_flush_tlb_page(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long pteu, flags, cnx;
+
+	addr &= PAGE_MASK;
+
+	local_irq_save(flags);
+
+	cnx = 1;
+#ifdef CONFIG_MN10300_TLB_USE_PIDR
+	cnx = mm->context.tlbpid[smp_processor_id()];
+#endif
+	if (cnx) {
+		pteu = addr;
+#ifdef CONFIG_MN10300_TLB_USE_PIDR
+		pteu |= cnx & xPTEU_PID;
+#endif
+		IPTEU = pteu;
+		DPTEU = pteu;
+		if (IPTEL & xPTEL_V)
+			IPTEL = 0;
+		if (DPTEL & xPTEL_V)
+			DPTEL = 0;
+	}
+	local_irq_restore(flags);
+}
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb() flushes the current mm struct TLBs
+ *  - flush_tlb_all() flushes all processes TLBs
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_range(mm, start, end) flushes a range of pages
+ *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
+ */
+#ifdef CONFIG_SMP
+
+#include <asm/smp.h>
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_current_task(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+
+#define flush_tlb()		flush_tlb_current_task()
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end)
+{
+	flush_tlb_mm(vma->vm_mm);
+}
+
+#else   /* CONFIG_SMP */
+
+static inline void flush_tlb_all(void)
+{
+	preempt_disable();
+	local_flush_tlb_all();
+	preempt_enable();
+}
+
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+	preempt_disable();
+	local_flush_tlb_all();
+	preempt_enable();
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end)
+{
+	preempt_disable();
+	local_flush_tlb_all();
+	preempt_enable();
+}
+
+#define flush_tlb_page(vma, addr)	local_flush_tlb_page((vma)->vm_mm, addr)
+#define flush_tlb()			flush_tlb_all()
+
+#endif /* CONFIG_SMP */
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+					  unsigned long end)
+{
+	flush_tlb_all();
+}
+
+static inline void flush_tlb_pgtables(struct mm_struct *mm,
+				      unsigned long start, unsigned long end)
+{
+}
+
+#endif /* _ASM_TLBFLUSH_H */

arch/mn10300/include/asm/topology.h

@@ -0,0 +1 @@
+#include <asm-generic/topology.h>

arch/mn10300/include/asm/types.h

@@ -0,0 +1,22 @@
+/* MN10300 Basic type definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_TYPES_H
+#define _ASM_TYPES_H
+
+#include <uapi/asm/types.h>
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+
+#define BITS_PER_LONG 32
+
+#endif /* _ASM_TYPES_H */

arch/mn10300/include/asm/uaccess.h

@@ -0,0 +1,495 @@
+/* MN10300 userspace access functions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_UACCESS_H
+#define _ASM_UACCESS_H
+
+/*
+ * User space memory access functions
+ */
+#include <linux/thread_info.h>
+#include <linux/kernel.h>
+#include <asm/page.h>
+#include <asm/errno.h>
+
+#define VERIFY_READ 0
+#define VERIFY_WRITE 1
+
+/*
+ * The fs value determines whether argument validity checking should be
+ * performed or not.  If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ */
+#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
+
+#define KERNEL_XDS	MAKE_MM_SEG(0xBFFFFFFF)
+#define KERNEL_DS	MAKE_MM_SEG(0x9FFFFFFF)
+#define USER_DS		MAKE_MM_SEG(TASK_SIZE)
+
+#define get_ds()	(KERNEL_DS)
+#define get_fs()	(current_thread_info()->addr_limit)
+#define set_fs(x)	(current_thread_info()->addr_limit = (x))
+#define __kernel_ds_p() (current_thread_info()->addr_limit.seg == 0x9FFFFFFF)
+
+#define segment_eq(a, b) ((a).seg == (b).seg)
+
+#define __addr_ok(addr) \
+	((unsigned long)(addr) < (current_thread_info()->addr_limit.seg))
+
+/*
+ * check that a range of addresses falls within the current address limit
+ */
+static inline int ___range_ok(unsigned long addr, unsigned int size)
+{
+	int flag = 1, tmp;
+
+	asm("	add	%3,%1	\n"	/* set C-flag if addr + size > 4Gb */
+	    "	bcs	0f	\n"
+	    "	cmp	%4,%1	\n"	/* jump if addr+size>limit (error) */
+	    "	bhi	0f	\n"
+	    "	clr	%0	\n"	/* mark okay */
+	    "0:			\n"
+	    : "=r"(flag), "=&r"(tmp)
+	    : "1"(addr), "ir"(size),
+	      "r"(current_thread_info()->addr_limit.seg), "0"(flag)
+	    : "cc"
+	    );
+
+	return flag;
+}
+
+#define __range_ok(addr, size) ___range_ok((unsigned long)(addr), (u32)(size))
+
+#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
+#define __access_ok(addr, size)     (__range_ok((addr), (size)) == 0)
+
+static inline int verify_area(int type, const void *addr, unsigned long size)
+{
+	return access_ok(type, addr, size) ? 0 : -EFAULT;
+}
+
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry
+{
+	unsigned long insn, fixup;
+};
+
+/* Returns 0 if exception not found and fixup otherwise.  */
+extern int fixup_exception(struct pt_regs *regs);
+
+#define put_user(x, ptr) __put_user_check((x), (ptr), sizeof(*(ptr)))
+#define get_user(x, ptr) __get_user_check((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * The "__xxx" versions do not do address space checking, useful when
+ * doing multiple accesses to the same area (the user has to do the
+ * checks by hand with "access_ok()")
+ */
+#define __put_user(x, ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr)))
+#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * The "xxx_ret" versions return constant specified in third argument, if
+ * something bad happens. These macros can be optimized for the
+ * case of just returning from the function xxx_ret is used.
+ */
+
+#define put_user_ret(x, ptr, ret) \
+	({ if (put_user((x), (ptr)))	return (ret); })
+#define get_user_ret(x, ptr, ret) \
+	({ if (get_user((x), (ptr)))	return (ret); })
+#define __put_user_ret(x, ptr, ret) \
+	({ if (__put_user((x), (ptr)))	return (ret); })
+#define __get_user_ret(x, ptr, ret) \
+	({ if (__get_user((x), (ptr)))	return (ret); })
+
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct *)(x))
+
+#define __get_user_nocheck(x, ptr, size)				\
+({									\
+	unsigned long __gu_addr;					\
+	int __gu_err;							\
+	__gu_addr = (unsigned long) (ptr);				\
+	switch (size) {							\
+	case 1: {							\
+		unsigned char __gu_val;					\
+		__get_user_asm("bu");					\
+		(x) = *(__force __typeof__(*(ptr))*) &__gu_val;		\
+		break;							\
+	}								\
+	case 2: {							\
+		unsigned short __gu_val;				\
+		__get_user_asm("hu");					\
+		(x) = *(__force __typeof__(*(ptr))*) &__gu_val;		\
+		break;							\
+	}								\
+	case 4: {							\
+		unsigned int __gu_val;					\
+		__get_user_asm("");					\
+		(x) = *(__force __typeof__(*(ptr))*) &__gu_val;		\
+		break;							\
+	}								\
+	default:							\
+		__get_user_unknown();					\
+		break;							\
+	}								\
+	__gu_err;							\
+})
+
+#define __get_user_check(x, ptr, size)					\
+({									\
+	const __typeof__(*(ptr))* __guc_ptr = (ptr);			\
+	int _e;								\
+	if (likely(__access_ok((unsigned long) __guc_ptr, (size))))	\
+		_e = __get_user_nocheck((x), __guc_ptr, (size));	\
+	else {								\
+		_e = -EFAULT;						\
+		(x) = (__typeof__(x))0;					\
+	}								\
+	_e;								\
+})
+
+#define __get_user_asm(INSN)					\
+({								\
+	asm volatile(					\
+		"1:\n"						\
+		"	mov"INSN"	%2,%1\n"		\
+		"	mov		0,%0\n"			\
+		"2:\n"						\
+		"	.section	.fixup,\"ax\"\n"	\
+		"3:\n\t"					\
+		"	mov		%3,%0\n"		\
+		"	jmp		2b\n"			\
+		"	.previous\n"				\
+		"	.section	__ex_table,\"a\"\n"	\
+		"	.balign		4\n"			\
+		"	.long		1b, 3b\n"		\
+		"	.previous"				\
+		: "=&r" (__gu_err), "=&r" (__gu_val)		\
+		: "m" (__m(__gu_addr)), "i" (-EFAULT));		\
+})
+
+extern int __get_user_unknown(void);
+
+#define __put_user_nocheck(x, ptr, size)			\
+({								\
+	union {							\
+		__typeof__(*(ptr)) val;				\
+		u32 bits[2];					\
+	} __pu_val;						\
+	unsigned long __pu_addr;				\
+	int __pu_err;						\
+	__pu_val.val = (x);					\
+	__pu_addr = (unsigned long) (ptr);			\
+	switch (size) {						\
+	case 1:  __put_user_asm("bu"); break;			\
+	case 2:  __put_user_asm("hu"); break;			\
+	case 4:  __put_user_asm(""  ); break;			\
+	case 8:  __put_user_asm8();    break;			\
+	default: __pu_err = __put_user_unknown(); break;	\
+	}							\
+	__pu_err;						\
+})
+
+#define __put_user_check(x, ptr, size)					\
+({									\
+	union {								\
+		__typeof__(*(ptr)) val;					\
+		u32 bits[2];						\
+	} __pu_val;							\
+	unsigned long __pu_addr;					\
+	int __pu_err;							\
+	__pu_val.val = (x);						\
+	__pu_addr = (unsigned long) (ptr);				\
+	if (likely(__access_ok(__pu_addr, size))) {			\
+		switch (size) {						\
+		case 1:  __put_user_asm("bu"); break;			\
+		case 2:  __put_user_asm("hu"); break;			\
+		case 4:  __put_user_asm(""  ); break;			\
+		case 8:  __put_user_asm8();    break;			\
+		default: __pu_err = __put_user_unknown(); break;	\
+		}							\
+	}								\
+	else {								\
+		__pu_err = -EFAULT;					\
+	}								\
+	__pu_err;							\
+})
+
+#define __put_user_asm(INSN)					\
+({								\
+	asm volatile(						\
+		"1:\n"						\
+		"	mov"INSN"	%1,%2\n"		\
+		"	mov		0,%0\n"			\
+		"2:\n"						\
+		"	.section	.fixup,\"ax\"\n"	\
+		"3:\n"						\
+		"	mov		%3,%0\n"		\
+		"	jmp		2b\n"			\
+		"	.previous\n"				\
+		"	.section	__ex_table,\"a\"\n"	\
+		"	.balign		4\n"			\
+		"	.long		1b, 3b\n"		\
+		"	.previous"				\
+		: "=&r" (__pu_err)				\
+		: "r" (__pu_val.val), "m" (__m(__pu_addr)),	\
+		  "i" (-EFAULT)					\
+		);						\
+})
+
+#define __put_user_asm8()						\
+({									\
+	asm volatile(							\
+		"1:	mov		%1,%3		\n"		\
+		"2:	mov		%2,%4		\n"		\
+		"	mov		0,%0		\n"		\
+		"3:					\n"		\
+		"	.section	.fixup,\"ax\"	\n"		\
+		"4:					\n"		\
+		"	mov		%5,%0		\n"		\
+		"	jmp		3b		\n"		\
+		"	.previous			\n"		\
+		"	.section	__ex_table,\"a\"\n"		\
+		"	.balign		4		\n"		\
+		"	.long		1b, 4b		\n"		\
+		"	.long		2b, 4b		\n"		\
+		"	.previous			\n"		\
+		: "=&r" (__pu_err)					\
+		: "r" (__pu_val.bits[0]), "r" (__pu_val.bits[1]),	\
+		  "m" (__m(__pu_addr)), "m" (__m(__pu_addr+4)),		\
+		  "i" (-EFAULT)						\
+		);							\
+})
+
+extern int __put_user_unknown(void);
+
+
+/*
+ * Copy To/From Userspace
+ */
+/* Generic arbitrary sized copy.  */
+#define __copy_user(to, from, size)					\
+do {									\
+	if (size) {							\
+		void *__to = to;					\
+		const void *__from = from;				\
+		int w;							\
+		asm volatile(						\
+			"0:     movbu	(%0),%3;\n"			\
+			"1:     movbu	%3,(%1);\n"			\
+			"	inc	%0;\n"				\
+			"	inc	%1;\n"				\
+			"       add	-1,%2;\n"			\
+			"       bne	0b;\n"				\
+			"2:\n"						\
+			"	.section .fixup,\"ax\"\n"		\
+			"3:	jmp	2b\n"				\
+			"	.previous\n"				\
+			"	.section __ex_table,\"a\"\n"		\
+			"       .balign	4\n"				\
+			"       .long	0b,3b\n"			\
+			"       .long	1b,3b\n"			\
+			"	.previous\n"				\
+			: "=a"(__from), "=a"(__to), "=r"(size), "=&r"(w)\
+			: "0"(__from), "1"(__to), "2"(size)		\
+			: "cc", "memory");				\
+	}								\
+} while (0)
+
+#define __copy_user_zeroing(to, from, size)				\
+do {									\
+	if (size) {							\
+		void *__to = to;					\
+		const void *__from = from;				\
+		int w;							\
+		asm volatile(						\
+			"0:     movbu	(%0),%3;\n"			\
+			"1:     movbu	%3,(%1);\n"			\
+			"	inc	%0;\n"				\
+			"	inc	%1;\n"				\
+			"       add	-1,%2;\n"			\
+			"       bne	0b;\n"				\
+			"2:\n"						\
+			"	.section .fixup,\"ax\"\n"		\
+			"3:\n"						\
+			"	mov	%2,%0\n"			\
+			"	clr	%3\n"				\
+			"4:     movbu	%3,(%1);\n"			\
+			"	inc	%1;\n"				\
+			"       add	-1,%2;\n"			\
+			"       bne	4b;\n"				\
+			"	mov	%0,%2\n"			\
+			"	jmp	2b\n"				\
+			"	.previous\n"				\
+			"	.section __ex_table,\"a\"\n"		\
+			"       .balign	4\n"				\
+			"       .long	0b,3b\n"			\
+			"       .long	1b,3b\n"			\
+			"	.previous\n"				\
+			: "=a"(__from), "=a"(__to), "=r"(size), "=&r"(w)\
+			: "0"(__from), "1"(__to), "2"(size)		\
+			: "cc", "memory");				\
+	}								\
+} while (0)
+
+/* We let the __ versions of copy_from/to_user inline, because they're often
+ * used in fast paths and have only a small space overhead.
+ */
+static inline
+unsigned long __generic_copy_from_user_nocheck(void *to, const void *from,
+					       unsigned long n)
+{
+	__copy_user_zeroing(to, from, n);
+	return n;
+}
+
+static inline
+unsigned long __generic_copy_to_user_nocheck(void *to, const void *from,
+					     unsigned long n)
+{
+	__copy_user(to, from, n);
+	return n;
+}
+
+
+#if 0
+#error "don't use - these macros don't increment to & from pointers"
+/* Optimize just a little bit when we know the size of the move. */
+#define __constant_copy_user(to, from, size)	\
+do {						\
+	asm volatile(				\
+		"       mov %0,a0;\n"		\
+		"0:     movbu (%1),d3;\n"	\
+		"1:     movbu d3,(%2);\n"	\
+		"       add -1,a0;\n"		\
+		"       bne 0b;\n"		\
+		"2:;"				\
+		".section .fixup,\"ax\"\n"	\
+		"3:	jmp 2b\n"		\
+		".previous\n"			\
+		".section __ex_table,\"a\"\n"	\
+		"       .balign 4\n"		\
+		"       .long 0b,3b\n"		\
+		"       .long 1b,3b\n"		\
+		".previous"			\
+		:				\
+		: "d"(size), "d"(to), "d"(from)	\
+		: "d3", "a0");			\
+} while (0)
+
+/* Optimize just a little bit when we know the size of the move. */
+#define __constant_copy_user_zeroing(to, from, size)	\
+do {							\
+	asm volatile(					\
+		"       mov %0,a0;\n"			\
+		"0:     movbu (%1),d3;\n"		\
+		"1:     movbu d3,(%2);\n"		\
+		"       add -1,a0;\n"			\
+		"       bne 0b;\n"			\
+		"2:;"					\
+		".section .fixup,\"ax\"\n"		\
+		"3:	jmp 2b\n"			\
+		".previous\n"				\
+		".section __ex_table,\"a\"\n"		\
+		"       .balign 4\n"			\
+		"       .long 0b,3b\n"			\
+		"       .long 1b,3b\n"			\
+		".previous"				\
+		:					\
+		: "d"(size), "d"(to), "d"(from)		\
+		: "d3", "a0");				\
+} while (0)
+
+static inline
+unsigned long __constant_copy_to_user(void *to, const void *from,
+				      unsigned long n)
+{
+	if (access_ok(VERIFY_WRITE, to, n))
+		__constant_copy_user(to, from, n);
+	return n;
+}
+
+static inline
+unsigned long __constant_copy_from_user(void *to, const void *from,
+					unsigned long n)
+{
+	if (access_ok(VERIFY_READ, from, n))
+		__constant_copy_user_zeroing(to, from, n);
+	return n;
+}
+
+static inline
+unsigned long __constant_copy_to_user_nocheck(void *to, const void *from,
+					      unsigned long n)
+{
+	__constant_copy_user(to, from, n);
+	return n;
+}
+
+static inline
+unsigned long __constant_copy_from_user_nocheck(void *to, const void *from,
+						unsigned long n)
+{
+	__constant_copy_user_zeroing(to, from, n);
+	return n;
+}
+#endif
+
+extern unsigned long __generic_copy_to_user(void __user *, const void *,
+					    unsigned long);
+extern unsigned long __generic_copy_from_user(void *, const void __user *,
+					      unsigned long);
+
+#define __copy_to_user_inatomic(to, from, n) \
+	__generic_copy_to_user_nocheck((to), (from), (n))
+#define __copy_from_user_inatomic(to, from, n) \
+	__generic_copy_from_user_nocheck((to), (from), (n))
+
+#define __copy_to_user(to, from, n)			\
+({							\
+	might_fault();					\
+	__copy_to_user_inatomic((to), (from), (n));	\
+})
+
+#define __copy_from_user(to, from, n)			\
+({							\
+	might_fault();					\
+	__copy_from_user_inatomic((to), (from), (n));	\
+})
+
+
+#define copy_to_user(to, from, n)   __generic_copy_to_user((to), (from), (n))
+#define copy_from_user(to, from, n) __generic_copy_from_user((to), (from), (n))
+
+extern long strncpy_from_user(char *dst, const char __user *src, long count);
+extern long __strncpy_from_user(char *dst, const char __user *src, long count);
+extern long strnlen_user(const char __user *str, long n);
+#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
+extern unsigned long clear_user(void __user *mem, unsigned long len);
+extern unsigned long __clear_user(void __user *mem, unsigned long len);
+
+#endif /* _ASM_UACCESS_H */

arch/mn10300/include/asm/ucontext.h

@@ -0,0 +1,22 @@
+/* MN10300 User context
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_UCONTEXT_H
+#define _ASM_UCONTEXT_H
+
+struct ucontext {
+	unsigned long	  uc_flags;
+	struct ucontext  *uc_link;
+	stack_t		  uc_stack;
+	struct sigcontext uc_mcontext;
+	sigset_t	  uc_sigmask;	/* mask last for extensibility */
+};
+
+#endif /* _ASM_UCONTEXT_H */

arch/mn10300/include/asm/unaligned.h

@@ -0,0 +1,20 @@
+/* MN10300 Unaligned memory access handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_MN10300_UNALIGNED_H
+#define _ASM_MN10300_UNALIGNED_H
+
+#include <linux/unaligned/access_ok.h>
+#include <linux/unaligned/generic.h>
+
+#define get_unaligned	__get_unaligned_le
+#define put_unaligned	__put_unaligned_le
+
+#endif /* _ASM_MN10300_UNALIGNED_H */

arch/mn10300/include/asm/unistd.h

@@ -0,0 +1,47 @@
+/* MN10300 System call number list
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_UNISTD_H
+#define _ASM_UNISTD_H
+
+#include <uapi/asm/unistd.h>
+
+
+#define NR_syscalls 340
+
+/*
+ * specify the deprecated syscalls we want to support on this arch
+ */
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_OLD_STAT
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLD_SELECT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_CLONE
+
+#endif /* _ASM_UNISTD_H */