Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

arch/h8300/Kconfig

@@ -0,0 +1,194 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/config-language.txt.
+#
+
+mainmenu "uClinux/h8300 (w/o MMU) Kernel Configuration"
+
+config H8300
+	bool
+	default y
+
+config MMU
+	bool
+	default n
+
+config SWAP
+	bool
+	default n
+
+config FPU
+	bool
+	default n
+
+config UID16
+	bool
+	default y
+
+config RWSEM_GENERIC_SPINLOCK
+	bool
+	default y
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+	default n
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config ISA
+	bool
+	default y
+
+config PCI
+	bool
+	default n
+
+source "init/Kconfig"
+
+source "arch/h8300/Kconfig.cpu"
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "drivers/base/Kconfig"
+
+source "drivers/mtd/Kconfig"
+
+source "drivers/block/Kconfig"
+
+source "drivers/ide/Kconfig"
+
+source "arch/h8300/Kconfig.ide"
+
+source "net/Kconfig"
+
+#
+# input - input/joystick depends on it. As does USB.
+#
+source "drivers/input/Kconfig"
+
+menu "Character devices"
+
+config VT
+	bool "Virtual terminal"
+	---help---
+	  If you say Y here, you will get support for terminal devices with
+	  display and keyboard devices. These are called "virtual" because you
+	  can run several virtual terminals (also called virtual consoles) on
+	  one physical terminal. This is rather useful, for example one
+	  virtual terminal can collect system messages and warnings, another
+	  one can be used for a text-mode user session, and a third could run
+	  an X session, all in parallel. Switching between virtual terminals
+	  is done with certain key combinations, usually Alt-<function key>.
+
+	  The setterm command ("man setterm") can be used to change the
+	  properties (such as colors or beeping) of a virtual terminal. The
+	  man page console_codes(4) ("man console_codes") contains the special
+	  character sequences that can be used to change those properties
+	  directly. The fonts used on virtual terminals can be changed with
+	  the setfont ("man setfont") command and the key bindings are defined
+	  with the loadkeys ("man loadkeys") command.
+
+	  You need at least one virtual terminal device in order to make use
+	  of your keyboard and monitor. Therefore, only people configuring an
+	  embedded system would want to say N here in order to save some
+	  memory; the only way to log into such a system is then via a serial
+	  or network connection.
+
+	  If unsure, say Y, or else you won't be able to do much with your new
+	  shiny Linux system :-)
+
+config VT_CONSOLE
+	bool "Support for console on virtual terminal"
+	depends on VT
+	---help---
+	  The system console is the device which receives all kernel messages
+	  and warnings and which allows logins in single user mode. If you
+	  answer Y here, a virtual terminal (the device used to interact with
+	  a physical terminal) can be used as system console. This is the most
+	  common mode of operations, so you should say Y here unless you want
+	  the kernel messages be output only to a serial port (in which case
+	  you should say Y to "Console on serial port", below).
+
+	  If you do say Y here, by default the currently visible virtual
+	  terminal (/dev/tty0) will be used as system console. You can change
+	  that with a kernel command line option such as "console=tty3" which
+	  would use the third virtual terminal as system console. (Try "man
+	  bootparam" or see the documentation of your boot loader (lilo or
+	  loadlin) about how to pass options to the kernel at boot time.)
+
+	  If unsure, say Y.
+
+config HW_CONSOLE
+	bool
+	depends on VT && !S390 && !UM
+	default y
+
+comment "Unix98 PTY support"
+
+config UNIX98_PTYS
+	bool "Unix98 PTY support"
+	---help---
+	  A pseudo terminal (PTY) is a software device consisting of two
+	  halves: a master and a slave. The slave device behaves identical to
+	  a physical terminal; the master device is used by a process to
+	  read data from and write data to the slave, thereby emulating a
+	  terminal. Typical programs for the master side are telnet servers
+	  and xterms.
+
+	  Linux has traditionally used the BSD-like names /dev/ptyxx for
+	  masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
+	  has a number of problems. The GNU C library glibc 2.1 and later,
+	  however, supports the Unix98 naming standard: in order to acquire a
+	  pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
+	  terminal is then made available to the process and the pseudo
+	  terminal slave can be accessed as /dev/pts/<number>. What was
+	  traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
+
+	  The entries in /dev/pts/ are created on the fly by a virtual
+	  file system; therefore, if you say Y here you should say Y to
+	  "/dev/pts file system for Unix98 PTYs" as well.
+
+	  If you want to say Y here, you need to have the C library glibc 2.1
+	  or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
+	  Read the instructions in <file:Documentation/Changes> pertaining to
+	  pseudo terminals. It's safe to say N.
+
+config UNIX98_PTY_COUNT
+	int "Maximum number of Unix98 PTYs in use (0-2048)"
+	depends on UNIX98_PTYS
+	default "256"
+	help
+	  The maximum number of Unix98 PTYs that can be used at any one time.
+	  The default is 256, and should be enough for desktop systems. Server
+	  machines which support incoming telnet/rlogin/ssh connections and/or
+	  serve several X terminals may want to increase this: every incoming
+	  connection and every xterm uses up one PTY.
+
+	  When not in use, each additional set of 256 PTYs occupy
+	  approximately 8 KB of kernel memory on 32-bit architectures.
+
+source "drivers/char/pcmcia/Kconfig"
+
+source "drivers/serial/Kconfig"
+
+source "drivers/i2c/Kconfig"
+
+source "drivers/usb/Kconfig"
+
+endmenu
+
+source "fs/Kconfig"
+
+source "arch/h8300/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"

arch/h8300/Kconfig.cpu

@@ -0,0 +1,183 @@
+menu "Processor type and features"
+
+choice
+	prompt "H8/300 platform"
+	default H8300H_GENERIC
+
+config H8300H_GENERIC
+	bool "H8/300H Generic"
+	help
+	  H8/300H CPU Generic Hardware Support
+
+config H8300H_AKI3068NET
+	bool "AE-3068/69"
+	help
+	  AKI-H8/3068F / AKI-H8/3069F Flashmicom LAN Board Support
+	  More Information. (Japanese Only)
+	  <http://akizukidensi.com/catalog/h8.html>
+	  AE-3068/69 Evaluation Board Support
+	  More Information.
+	  <http://www.microtronique.com/ae3069lan.htm>
+
+config H8300H_H8MAX
+	bool "H8MAX"
+	help
+	  H8MAX Evaluation Board Support
+	  More Information. (Japanese Only)
+	  <http://strawberry-linux.com/h8/index.html>
+
+config H8300H_SIM
+	bool "H8/300H Simulator"
+	help
+	  GDB Simulator Support
+	  More Information.
+	  arch/h8300/Doc/simulator.txt
+
+config H8S_GENERIC
+	bool "H8S Generic"
+	help
+	  H8S CPU Generic Hardware Support
+
+config H8S_EDOSK2674
+	bool "EDOSK-2674"
+	help
+	  Renesas EDOSK-2674 Evaluation Board Support
+	  More Information.
+	  <http://www.azpower.com/H8-uClinux/index.html>
+ 	  <http://www.eu.renesas.com/tools/edk/support/edosk2674.html>
+
+config H8S_SIM
+	bool "H8S Simulator"
+	help
+	  GDB Simulator Support
+	  More Information.
+	  arch/h8300/Doc/simulator.txt
+
+endchoice
+
+if (H8300H_GENERIC || H8S_GENERIC)
+menu "Detail Selection"
+if (H8300H_GENERIC)
+choice
+	prompt "CPU Selection"
+
+config H83002
+	bool "H8/3001,3002,3003"
+
+config H83007
+	bool "H8/3006,3007"
+
+config H83048
+	bool "H8/3044,3045,3046,3047,3048,3052"
+
+config H83068
+	bool "H8/3065,3066,3067,3068,3069"
+endchoice
+endif
+
+if (H8S_GENERIC)
+choice
+	prompt "CPU Selection"
+
+config H8S2678
+	bool "H8S/2670,2673,2674R,2675,2676"
+endchoice
+endif
+
+config CPU_CLOCK
+	int "CPU Clock Frequency (/1KHz)"
+	default "20000"
+	help
+	  CPU Clock Frequency divide to 1000
+endmenu
+endif
+
+if (H8300H_GENERIC || H8S_GENERIC || H8300H_SIM || H8S_SIM || H8S_EDOSK2674)
+choice
+	prompt "Kernel executes from"
+	---help---
+	  Choose the memory type that the kernel will be running in.
+
+config RAMKERNEL
+	bool "RAM"
+	help
+	  The kernel will be resident in RAM when running.
+
+config ROMKERNEL
+	bool "ROM"
+	help
+	  The kernel will be resident in FLASH/ROM when running.
+
+endchoice
+endif
+
+if (H8300H_AKI3068NET)
+config H83068
+	bool
+	default y
+
+config CPU_CLOCK
+	int
+	default "20000"
+
+config RAMKERNEL
+	bool
+	default y
+endif
+
+if (H8300H_H8MAX)
+config H83068
+	bool
+	default y
+
+config CPU_CLOCK
+	int
+	default 25000
+
+config RAMKERNEL
+	bool
+	default y
+endif
+
+if (H8300H_SIM)
+config H83007
+	bool
+	default y
+
+config CPU_CLOCK
+	int
+	default "16000"
+endif
+
+if (H8S_EDOSK2674)
+config H8S2678
+	bool
+	default y
+config CPU_CLOCK
+	int
+	default 33000
+endif
+
+if (H8S_SIM)
+config H8S2678
+	bool
+	default y
+config CPU_CLOCK
+	int
+	default 33000
+endif
+
+config CPU_H8300H
+	bool
+	depends on (H8002 || H83007 || H83048 || H83068)
+	default y
+
+config CPU_H8S
+	bool
+	depends on H8S2678
+	default y
+
+config PREEMPT
+	bool "Preemptible Kernel"
+	default n
+endmenu

arch/h8300/Kconfig.debug

@@ -0,0 +1,68 @@
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config FULLDEBUG
+	bool "Full Symbolic/Source Debugging support"
+	help
+	  Enable debugging symbols on kernel build.
+
+config HIGHPROFILE
+	bool "Use fast second timer for profiling"
+	help
+	  Use a fast secondary clock to produce profiling information.
+
+config NO_KERNEL_MSG
+	bool "Suppress Kernel BUG Messages"
+	help
+	  Do not output any debug BUG messages within the kernel.
+
+config GDB_MAGICPRINT
+	bool "Message Output for GDB MagicPrint service"
+	depends on (H8300H_SIM || H8S_SIM)
+	help
+	  kernel messages output useing MagicPrint service from GDB
+
+config SYSCALL_PRINT
+	bool "SystemCall trace print"
+	help
+	  outout history of systemcall
+
+config GDB_DEBUG
+   	bool "Use gdb stub"
+	depends on (!H8300H_SIM && !H8S_SIM)
+	help
+	  gdb stub exception support
+
+config CONFIG_SH_STANDARD_BIOS
+	bool "Use gdb protocol serial console"
+	depends on (!H8300H_SIM && !H8S_SIM)
+	help
+	  serial console output using GDB protocol.
+	  Require eCos/RedBoot
+
+config DEFAULT_CMDLINE
+	bool "Use buildin commandline"
+	default n
+	help
+	  buildin kernel commandline enabled.
+
+config KERNEL_COMMAND
+	string "Buildin commmand string"
+	depends on DEFAULT_CMDLINE
+	help
+	  buildin kernel commandline strings.
+
+config BLKDEV_RESERVE
+	bool "BLKDEV Reserved Memory"
+	default n
+	help
+	  Reserved BLKDEV area.
+
+config CONFIG_BLKDEV_RESERVE_ADDRESS
+	hex 'start address'
+	depends on BLKDEV_RESERVE
+	help
+	  BLKDEV start address.
+
+endmenu

arch/h8300/Kconfig.ide

@@ -0,0 +1,44 @@
+# uClinux H8/300 Target Board Selection Menu (IDE)
+
+if (H8300H_AKI3068NET)
+menu "IDE Extra configuration"
+
+config H8300_IDE_BASE
+	hex "IDE register base address"
+	depends on IDE
+	default 0
+	help
+	  IDE registers base address
+
+config H8300_IDE_ALT
+	hex "IDE register alternate address"
+	depends on IDE
+	default 0
+	help
+	  IDE alternate registers address
+
+config H8300_IDE_IRQ
+	int "IDE IRQ no"
+	depends on IDE
+	default 0
+	help
+	  IDE use IRQ no
+endmenu
+endif
+
+if (H8300H_H8MAX)
+config H8300_IDE_BASE
+	hex
+	depends on IDE
+	default 0x200000
+
+config H8300_IDE_ALT
+	hex
+	depends on IDE
+	default 0x60000c
+
+config H8300_IDE_IRQ
+	int
+	depends on IDE
+	default 5
+endif

arch/h8300/Makefile

@@ -0,0 +1,78 @@
+#
+# arch/h8300/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# (C) Copyright 2002,2003 Yoshinori Sato <[email protected]>
+#
+
+platform-$(CONFIG_CPU_H8300H)	:= h8300h
+platform-$(CONFIG_CPU_H8S)	:= h8s
+PLATFORM := $(platform-y)
+
+board-$(CONFIG_H8300H_GENERIC)		:= generic
+board-$(CONFIG_H8300H_AKI3068NET)	:= aki3068net
+board-$(CONFIG_H8300H_H8MAX)		:= h8max
+board-$(CONFIG_H8300H_SIM)		:= generic
+board-$(CONFIG_H8S_GENERIC)		:= generic
+board-$(CONFIG_H8S_EDOSK2674)		:= edosk2674
+board-$(CONFIG_H8S_SIM)			:= generic
+BOARD := $(board-y)
+
+model-$(CONFIG_RAMKERNEL)	:= ram
+model-$(CONFIG_ROMKERNEL)	:= rom
+MODEL := $(model-y)
+
+cflags-$(CONFIG_CPU_H8300H)	:= -mh
+ldflags-$(CONFIG_CPU_H8300H)	:= -mh8300helf
+cflags-$(CONFIG_CPU_H8S)	:= -ms
+ldflags-$(CONFIG_CPU_H8S)	:= -mh8300self
+
+CFLAGS += $(cflags-y)
+CFLAGS += -mint32 -fno-builtin
+CFLAGS += -g
+CFLAGS += -D__linux__
+CFLAGS += -DUTS_SYSNAME=\"uClinux\"
+AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y)
+LDFLAGS += $(ldflags-y)
+
+CROSS_COMPILE = h8300-elf-
+LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(CFLAGS) -print-libgcc-file-name)
+
+head-y := arch/$(ARCH)/platform/$(platform-y)/$(board-y)/crt0_$(model-y).o
+
+core-y	+= arch/$(ARCH)/kernel/ \
+	   arch/$(ARCH)/mm/
+ifdef PLATFORM
+core-y	+= arch/$(ARCH)/platform/$(PLATFORM)/ \
+	   arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/
+endif
+
+libs-y	+= arch/$(ARCH)/lib/ $(LIBGCC)
+
+boot := arch/h8300/boot
+
+export MODEL PLATFORM BOARD
+
+archmrproper:
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+prepare: include/asm-$(ARCH)/asm-offsets.h
+
+include/asm-$(ARCH)/asm-offsets.h: arch/$(ARCH)/kernel/asm-offsets.s \
+				   include/asm include/linux/version.h
+	$(call filechk,gen-asm-offsets)
+
+vmlinux.srec vmlinux.bin: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+define archhelp
+  echo  'vmlinux.bin  - Create raw binary'
+  echo  'vmlinux.srec - Create srec binary'
+endef
+
+CLEAN_FILES += include/asm-$(ARCH)/asm-offsets.h

arch/h8300/README

@@ -0,0 +1,37 @@
+linux-2.6 for H8/300 README
+Yoshinori Sato <[email protected]>
+
+* Supported CPU
+H8/300H and H8S
+
+* Supported Target
+1.simulator of GDB
+  require patches.
+
+2.AE 3068/AE 3069
+  more information 
+  MICROTRONIQUE <http://www.microtronique.com/>
+  Akizuki Denshi Tsusho Ltd. <http://www.akizuki.ne.jp> (Japanese Only)
+
+3.H8MAX 
+  see http://ip-sol.jp/h8max/ (Japanese Only)
+
+4.EDOSK2674
+  see http://www.eu.renesas.com/products/mpumcu/tool/edk/support/edosk2674.html
+      http://www.azpower.com/H8-uClinux/
+
+* Toolchain Version
+gcc-3.1 or higher and patch
+see arch/h8300/tools_patch/README
+binutils-2.12 or higher
+gdb-5.2 or higher
+The environment that can compile a h8300-elf binary is necessary.
+
+* Userland Develop environment
+used h8300-elf toolchains.
+see http://www.uclinux.org/pub/uClinux/ports/h8/
+
+* A few words of thanks
+Porting to H8/300 serieses is support of Information-technology Promotion Agency, Japan.
+I thank support.
+and All developer/user.

arch/h8300/boot/Makefile

@@ -0,0 +1,12 @@
+# arch/h8300/boot/Makefile
+
+targets := vmlinux.srec vmlinux.bin
+
+OBJCOPYFLAGS_vmlinux.srec := -Osrec
+OBJCOPYFLAGS_vmlinux.bin  := -Obinary
+
+$(obj)/vmlinux.srec $(obj)/vmlinux.bin:  vmlinux FORCE
+	$(call if_changed,objcopy)
+	@echo '  Kernel: $@ is ready'
+
+CLEAN_FILES += arch/$(ARCH)/vmlinux.bin arch/$(ARCH)/vmlinux.srec

arch/h8300/defconfig

@@ -0,0 +1,356 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.11-rc1
+# Sun Jan 16 17:24:38 2005
+#
+CONFIG_H8300=y
+# CONFIG_MMU is not set
+# CONFIG_SWAP is not set
+# CONFIG_FPU is not set
+CONFIG_UID16=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ISA=y
+# CONFIG_PCI is not set
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_CLEAN_COMPILE=y
+CONFIG_BROKEN_ON_SMP=y
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_SYSCTL is not set
+# CONFIG_AUDIT is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_HOTPLUG is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_EMBEDDED=y
+# CONFIG_KALLSYMS is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_CC_ALIGN_FUNCTIONS=0
+CONFIG_CC_ALIGN_LABELS=0
+CONFIG_CC_ALIGN_LOOPS=0
+CONFIG_CC_ALIGN_JUMPS=0
+CONFIG_TINY_SHMEM=y
+
+#
+# Loadable module support
+#
+# CONFIG_MODULES is not set
+
+#
+# Processor type and features
+#
+CONFIG_H8300H_GENERIC=y
+# CONFIG_H8300H_AKI3068NET is not set
+# CONFIG_H8300H_H8MAX is not set
+# CONFIG_H8300H_SIM is not set
+# CONFIG_H8S_GENERIC is not set
+# CONFIG_H8S_EDOSK2674 is not set
+# CONFIG_H8S_SIM is not set
+
+#
+# Detail Selection
+#
+# CONFIG_H83002 is not set
+# CONFIG_H83007 is not set
+# CONFIG_H83048 is not set
+CONFIG_H83068=y
+CONFIG_CPU_CLOCK=20000
+# CONFIG_RAMKERNEL is not set
+CONFIG_ROMKERNEL=y
+CONFIG_CPU_H8300H=y
+# CONFIG_PREEMPT is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_FLAT=y
+CONFIG_BINFMT_ZFLAT=y
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Generic Driver Options
+#
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_CONCAT=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_RAM=y
+CONFIG_MTD_ROM=y
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_UCLINUX=y
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLKMTD is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+
+#
+# NAND Flash Device Drivers
+#
+# CONFIG_MTD_NAND is not set
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_BLK_DEV_XD is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_RAM is not set
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_CDROM_PKTCDVD is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# Networking support
+#
+# CONFIG_NET is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Userland interfaces
+#
+
+#
+# Input I/O drivers
+#
+# CONFIG_GAMEPORT is not set
+CONFIG_SOUND_GAMEPORT=y
+# CONFIG_SERIO is not set
+# CONFIG_SERIO_I8042 is not set
+
+#
+# Input Device Drivers
+#
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+
+#
+# Unix98 PTY support
+#
+# CONFIG_UNIX98_PTYS is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# USB support
+#
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# File systems
+#
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_JBD is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_MINIX_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+# CONFIG_SYSFS is not set
+# CONFIG_DEVFS_FS is not set
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+# CONFIG_NLS is not set
+
+#
+# Kernel hacking
+#
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_FS is not set
+CONFIG_FULLDEBUG=y
+# CONFIG_HIGHPROFILE is not set
+CONFIG_NO_KERNEL_MSG=y
+# CONFIG_SYSCALL_PRINT is not set
+# CONFIG_GDB_DEBUG is not set
+# CONFIG_CONFIG_SH_STANDARD_BIOS is not set
+# CONFIG_DEFAULT_CMDLINE is not set
+# CONFIG_BLKDEV_RESERVE is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+# CONFIG_CRYPTO is not set
+
+#
+# Hardware crypto devices
+#
+
+#
+# Library routines
+#
+# CONFIG_CRC_CCITT is not set
+CONFIG_CRC32=y
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y

arch/h8300/kernel/Makefile

@@ -0,0 +1,11 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y := vmlinux.lds
+
+obj-y := process.o traps.o ptrace.o ints.o \
+	 sys_h8300.o time.o semaphore.o signal.o \
+         setup.o gpio.o init_task.o syscalls.o
+
+obj-$(CONFIG_MODULES) += module.o h8300_ksyms.o 

arch/h8300/kernel/asm-offsets.c

@@ -0,0 +1,65 @@
+/*
+ * This program is used to generate definitions needed by
+ * assembly language modules.
+ *
+ * We use the technique used in the OSF Mach kernel code:
+ * generate asm statements containing #defines,
+ * compile this file to assembler, and then extract the
+ * #defines from the assembly-language output.
+ */
+
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/ptrace.h>
+#include <linux/hardirq.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/ptrace.h>
+
+#define DEFINE(sym, val) \
+        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+int main(void)
+{
+	/* offsets into the task struct */
+	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
+	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
+	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
+	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
+	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
+	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
+	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
+
+	/* offsets into the irq_cpustat_t struct */
+	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
+
+	/* offsets into the thread struct */
+	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
+	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
+	DEFINE(THREAD_CCR, offsetof(struct thread_struct, ccr));
+
+	/* offsets into the pt_regs struct */
+	DEFINE(LER0,  offsetof(struct pt_regs, er0)      - sizeof(long));
+	DEFINE(LER1,  offsetof(struct pt_regs, er1)      - sizeof(long));
+	DEFINE(LER2,  offsetof(struct pt_regs, er2)      - sizeof(long));
+	DEFINE(LER3,  offsetof(struct pt_regs, er3)      - sizeof(long));
+	DEFINE(LER4,  offsetof(struct pt_regs, er4)      - sizeof(long));
+	DEFINE(LER5,  offsetof(struct pt_regs, er5)      - sizeof(long));
+	DEFINE(LER6,  offsetof(struct pt_regs, er6)      - sizeof(long));
+	DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
+	DEFINE(LCCR,  offsetof(struct pt_regs, ccr)      - sizeof(long));
+	DEFINE(LVEC,  offsetof(struct pt_regs, vector)   - sizeof(long));
+#if defined(__H8300S__)
+	DEFINE(LEXR,  offsetof(struct pt_regs, exr)      - sizeof(long));
+#endif
+	DEFINE(LRET,  offsetof(struct pt_regs, pc)       - sizeof(long));
+
+	DEFINE(PT_PTRACED, PT_PTRACED);
+	DEFINE(PT_DTRACE, PT_DTRACE);
+
+	return 0;
+}

arch/h8300/kernel/gpio.c

@@ -0,0 +1,174 @@
+/*
+ *  linux/arch/h8300/kernel/gpio.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ */
+
+/*
+ * Internal I/O Port Management
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/proc_fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+
+#define _(addr) (volatile unsigned char *)(addr)
+#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
+#include <asm/regs306x.h>
+static volatile unsigned char *ddrs[] = {
+	_(P1DDR),_(P2DDR),_(P3DDR),_(P4DDR),_(P5DDR),_(P6DDR),
+	NULL,    _(P8DDR),_(P9DDR),_(PADDR),_(PBDDR),
+};
+#define MAX_PORT 11
+#endif
+
+ #if defined(CONFIG_H83002) || defined(CONFIG_H8048)
+/* Fix me!! */
+#include <asm/regs306x.h>
+static volatile unsigned char *ddrs[] = {
+	_(P1DDR),_(P2DDR),_(P3DDR),_(P4DDR),_(P5DDR),_(P6DDR),
+	NULL,    _(P8DDR),_(P9DDR),_(PADDR),_(PBDDR),
+};
+#define MAX_PORT 11
+#endif
+
+#if defined(CONFIG_H8S2678)
+#include <asm/regs267x.h>
+static volatile unsigned char *ddrs[] = {
+	_(P1DDR),_(P2DDR),_(P3DDR),NULL    ,_(P5DDR),_(P6DDR),
+	_(P7DDR),_(P8DDR),NULL,    _(PADDR),_(PBDDR),_(PCDDR),
+	_(PDDDR),_(PEDDR),_(PFDDR),_(PGDDR),_(PHDDR),
+	_(PADDR),_(PBDDR),_(PCDDR),_(PDDDR),_(PEDDR),_(PFDDR),
+	_(PGDDR),_(PHDDR)
+};
+#define MAX_PORT 17
+#endif
+#undef _
+ 
+#if !defined(P1DDR)
+#error Unsuppoted CPU Selection
+#endif
+
+static struct {
+	unsigned char used;
+	unsigned char ddr;
+} gpio_regs[MAX_PORT];
+
+extern char *_platform_gpio_table(int length);
+
+int h8300_reserved_gpio(int port, unsigned int bits)
+{
+	unsigned char *used;
+
+	if (port < 0 || port >= MAX_PORT)
+		return -1;
+	used = &(gpio_regs[port].used);
+	if ((*used & bits) != 0)
+		return 0;
+	*used |= bits;
+	return 1;
+}
+
+int h8300_free_gpio(int port, unsigned int bits)
+{
+	unsigned char *used;
+
+	if (port < 0 || port >= MAX_PORT)
+		return -1;
+	used = &(gpio_regs[port].used);
+	if ((*used & bits) != bits)
+		return 0;
+	*used &= (~bits);
+	return 1;
+}
+
+int h8300_set_gpio_dir(int port_bit,int dir)
+{
+	int port = (port_bit >> 8) & 0xff;
+	int bit  = port_bit & 0xff;
+
+	if (ddrs[port] == NULL)
+		return 0;
+	if (gpio_regs[port].used & bit) {
+		if (dir)
+			gpio_regs[port].ddr |= bit;
+		else
+			gpio_regs[port].ddr &= ~bit;
+		*ddrs[port] = gpio_regs[port].ddr;
+		return 1;
+	} else
+		return 0;
+}
+
+int h8300_get_gpio_dir(int port_bit)
+{
+	int port = (port_bit >> 8) & 0xff;
+	int bit  = port_bit & 0xff;
+
+	if (ddrs[port] == NULL)
+		return 0;
+	if (gpio_regs[port].used & bit) {
+		return (gpio_regs[port].ddr & bit) != 0;
+	} else
+		return -1;
+}
+
+#if defined(CONFIG_PROC_FS)
+static char *port_status(int portno)
+{
+	static char result[10];
+	const static char io[2]={'I','O'};
+	char *rp;
+	int c;
+	unsigned char used,ddr;
+	
+	used = gpio_regs[portno].used;
+	ddr  = gpio_regs[portno].ddr;
+	result[8]='\0';
+	rp = result + 7;
+	for (c = 8; c > 0; c--,rp--,used >>= 1, ddr >>= 1)
+		if (used & 0x01)
+			*rp = io[ ddr & 0x01];
+		else	
+			*rp = '-';
+	return result;
+}
+
+static int gpio_proc_read(char *buf, char **start, off_t offset, 
+                          int len, int *unused_i, void *unused_v)
+{
+	int c,outlen;
+	const static char port_name[]="123456789ABCDEFGH";
+	outlen = 0;
+	for (c = 0; c < MAX_PORT; c++) {
+		if (ddrs[c] == NULL)
+			continue ;
+		len = sprintf(buf,"P%c: %s\n",port_name[c],port_status(c));
+		buf += len;
+		outlen += len;
+	}
+	return outlen;
+}
+
+static __init int register_proc(void)
+{
+	struct proc_dir_entry *proc_gpio;
+
+	proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL);
+	if (proc_gpio) 
+		proc_gpio->read_proc = gpio_proc_read;
+	return proc_gpio != NULL;
+}
+
+__initcall(register_proc);
+#endif
+
+void __init h8300_gpio_init(void)
+{
+	memcpy(gpio_regs,_platform_gpio_table(sizeof(gpio_regs)),sizeof(gpio_regs));
+}

arch/h8300/kernel/h8300_ksyms.c

@@ -0,0 +1,112 @@
+#include <linux/module.h>
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/user.h>
+#include <linux/elfcore.h>
+#include <linux/in6.h>
+#include <linux/interrupt.h>
+#include <linux/config.h>
+
+#include <asm/setup.h>
+#include <asm/pgalloc.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/semaphore.h>
+#include <asm/checksum.h>
+#include <asm/current.h>
+#include <asm/gpio.h>
+
+//asmlinkage long long __ashrdi3 (long long, int);
+//asmlinkage long long __lshrdi3 (long long, int);
+extern char h8300_debug_device[];
+
+extern void dump_thread(struct pt_regs *, struct user *);
+
+/* platform dependent support */
+
+EXPORT_SYMBOL(dump_thread);
+EXPORT_SYMBOL(strnlen);
+EXPORT_SYMBOL(strrchr);
+EXPORT_SYMBOL(strstr);
+EXPORT_SYMBOL(strchr);
+EXPORT_SYMBOL(strcat);
+EXPORT_SYMBOL(strlen);
+EXPORT_SYMBOL(strcmp);
+EXPORT_SYMBOL(strncmp);
+
+EXPORT_SYMBOL(ip_fast_csum);
+
+EXPORT_SYMBOL(kernel_thread);
+EXPORT_SYMBOL(enable_irq);
+EXPORT_SYMBOL(disable_irq);
+
+/* Networking helper routines. */
+EXPORT_SYMBOL(csum_partial_copy);
+
+/* The following are special because they're not called
+   explicitly (the C compiler generates them).  Fortunately,
+   their interface isn't gonna change any time soon now, so
+   it's OK to leave it out of version control.  */
+//EXPORT_SYMBOL(__ashrdi3);
+//EXPORT_SYMBOL(__lshrdi3);
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(memcmp);
+EXPORT_SYMBOL(memscan);
+EXPORT_SYMBOL(memmove);
+
+EXPORT_SYMBOL(get_wchan);
+
+/*
+ * libgcc functions - functions that are used internally by the
+ * compiler...  (prototypes are not correct though, but that
+ * doesn't really matter since they're not versioned).
+ */
+extern void __gcc_bcmp(void);
+extern void __ashldi3(void);
+extern void __ashrdi3(void);
+extern void __cmpdi2(void);
+extern void __divdi3(void);
+extern void __divsi3(void);
+extern void __lshrdi3(void);
+extern void __moddi3(void);
+extern void __modsi3(void);
+extern void __muldi3(void);
+extern void __mulsi3(void);
+extern void __negdi2(void);
+extern void __ucmpdi2(void);
+extern void __udivdi3(void);
+extern void __udivmoddi4(void);
+extern void __udivsi3(void);
+extern void __umoddi3(void);
+extern void __umodsi3(void);
+
+        /* gcc lib functions */
+EXPORT_SYMBOL(__gcc_bcmp);
+EXPORT_SYMBOL(__ashldi3);
+EXPORT_SYMBOL(__ashrdi3);
+EXPORT_SYMBOL(__cmpdi2);
+EXPORT_SYMBOL(__divdi3);
+EXPORT_SYMBOL(__divsi3);
+EXPORT_SYMBOL(__lshrdi3);
+EXPORT_SYMBOL(__moddi3);
+EXPORT_SYMBOL(__modsi3);
+EXPORT_SYMBOL(__muldi3);
+EXPORT_SYMBOL(__mulsi3);
+EXPORT_SYMBOL(__negdi2);
+EXPORT_SYMBOL(__ucmpdi2);
+EXPORT_SYMBOL(__udivdi3);
+EXPORT_SYMBOL(__udivmoddi4);
+EXPORT_SYMBOL(__udivsi3);
+EXPORT_SYMBOL(__umoddi3);
+EXPORT_SYMBOL(__umodsi3);
+
+#ifdef MAGIC_ROM_PTR
+EXPORT_SYMBOL(is_in_rom);
+#endif
+
+EXPORT_SYMBOL(h8300_reserved_gpio);
+EXPORT_SYMBOL(h8300_free_gpio);
+EXPORT_SYMBOL(h8300_set_gpio_dir);

arch/h8300/kernel/init_task.c

@@ -0,0 +1,43 @@
+/*
+ *  linux/arch/h8300/kernel/init_task.c
+ */
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/init_task.h>
+#include <linux/fs.h>
+#include <linux/mqueue.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+
+static struct fs_struct init_fs = INIT_FS;
+static struct files_struct init_files = INIT_FILES;
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct mm_struct init_mm = INIT_MM(init_mm);
+
+EXPORT_SYMBOL(init_mm);
+
+/*
+ * Initial task structure.
+ *
+ * All other task structs will be allocated on slabs in fork.c
+ */
+__asm__(".align 4");
+struct task_struct init_task = INIT_TASK(init_task);
+
+EXPORT_SYMBOL(init_task);
+
+/*
+ * Initial thread structure.
+ *
+ * We need to make sure that this is 8192-byte aligned due to the
+ * way process stacks are handled. This is done by having a special
+ * "init_task" linker map entry..
+ */
+union thread_union init_thread_union
+	__attribute__((__section__(".data.init_task"))) =
+		{ INIT_THREAD_INFO(init_task) };
+

arch/h8300/kernel/ints.c

@@ -0,0 +1,255 @@
+/*
+ * linux/arch/h8300/platform/h8300h/ints.c
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * Based on linux/arch/$(ARCH)/platform/$(PLATFORM)/ints.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ * Copyright 1996 Roman Zippel
+ * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/random.h>
+#include <linux/bootmem.h>
+#include <linux/hardirq.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/io.h>
+#include <asm/setup.h>
+#include <asm/errno.h>
+
+/*
+ * This structure has only 4 elements for speed reasons
+ */
+typedef struct irq_handler {
+	irqreturn_t (*handler)(int, void *, struct pt_regs *);
+	int         flags;
+	int         count;
+	void	    *dev_id;
+	const char  *devname;
+} irq_handler_t;
+
+static irq_handler_t *irq_list[NR_IRQS];
+static int use_kmalloc;
+
+extern unsigned long *interrupt_redirect_table;
+extern const int h8300_saved_vectors[];
+extern const unsigned long h8300_trap_table[];
+int h8300_enable_irq_pin(unsigned int irq);
+void h8300_disable_irq_pin(unsigned int irq);
+
+#define CPU_VECTOR ((unsigned long *)0x000000)
+#define ADDR_MASK (0xffffff)
+
+#if defined(CONFIG_RAMKERNEL)
+static unsigned long __init *get_vector_address(void)
+{
+	unsigned long *rom_vector = CPU_VECTOR;
+	unsigned long base,tmp;
+	int vec_no;
+
+	base = rom_vector[EXT_IRQ0] & ADDR_MASK;
+	
+	/* check romvector format */
+	for (vec_no = EXT_IRQ1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) {
+		if ((base+(vec_no - EXT_IRQ0)*4) != (rom_vector[vec_no] & ADDR_MASK))
+			return NULL;
+	}
+
+	/* ramvector base address */
+	base -= EXT_IRQ0*4;
+
+	/* writerble check */
+	tmp = ~(*(volatile unsigned long *)base);
+	(*(volatile unsigned long *)base) = tmp;
+	if ((*(volatile unsigned long *)base) != tmp)
+		return NULL;
+	return (unsigned long *)base;
+}
+#endif
+
+void __init init_IRQ(void)
+{
+#if defined(CONFIG_RAMKERNEL)
+	int i;
+	unsigned long *ramvec,*ramvec_p;
+	const unsigned long *trap_entry;
+	const int *saved_vector;
+
+	ramvec = get_vector_address();
+	if (ramvec == NULL)
+		panic("interrupt vector serup failed.");
+	else
+		printk(KERN_INFO "virtual vector at 0x%08lx\n",(unsigned long)ramvec);
+
+	/* create redirect table */
+	ramvec_p = ramvec;
+	trap_entry = h8300_trap_table;
+	saved_vector = h8300_saved_vectors;
+	for ( i = 0; i < NR_IRQS; i++) {
+		if (i == *saved_vector) {
+			ramvec_p++;
+			saved_vector++;
+		} else {
+			if ( i < NR_TRAPS ) {
+				if (*trap_entry)
+					*ramvec_p = VECTOR(*trap_entry);
+				ramvec_p++;
+				trap_entry++;
+			} else
+				*ramvec_p++ = REDIRECT(interrupt_entry);
+		}
+	}
+	interrupt_redirect_table = ramvec;
+#ifdef DUMP_VECTOR
+	ramvec_p = ramvec;
+	for (i = 0; i < NR_IRQS; i++) {
+		if ((i % 8) == 0)
+			printk(KERN_DEBUG "\n%p: ",ramvec_p);
+		printk(KERN_DEBUG "%p ",*ramvec_p);
+		ramvec_p++;
+	}
+	printk(KERN_DEBUG "\n");
+#endif
+#endif
+}
+
+int request_irq(unsigned int irq, 
+		irqreturn_t (*handler)(int, void *, struct pt_regs *),
+                unsigned long flags, const char *devname, void *dev_id)
+{
+	irq_handler_t *irq_handle;
+	if (irq < 0 || irq >= NR_IRQS) {
+		printk(KERN_ERR "Incorrect IRQ %d from %s\n", irq, devname);
+		return -EINVAL;
+	}
+
+	if (irq_list[irq] || (h8300_enable_irq_pin(irq) == -EBUSY))
+		return -EBUSY;
+
+	if (use_kmalloc)
+		irq_handle = (irq_handler_t *)kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
+	else {
+		/* use bootmem allocater */
+		irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
+		irq_handle = (irq_handler_t *)((unsigned long)irq_handle | 0x80000000);
+	}
+
+	if (irq_handle == NULL)
+		return -ENOMEM;
+
+	irq_handle->handler = handler;
+	irq_handle->flags   = flags;
+	irq_handle->count   = 0;
+	irq_handle->dev_id  = dev_id;
+	irq_handle->devname = devname;
+	irq_list[irq] = irq_handle;
+
+	if (irq_handle->flags & SA_SAMPLE_RANDOM)
+		rand_initialize_irq(irq);
+
+	enable_irq(irq);
+	return 0;
+}
+
+EXPORT_SYMBOL(request_irq);
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+	if (irq >= NR_IRQS)
+		return;
+
+	if (!irq_list[irq] || irq_list[irq]->dev_id != dev_id)
+		printk(KERN_WARNING "Removing probably wrong IRQ %d from %s\n",
+		       irq, irq_list[irq]->devname);
+	disable_irq(irq);
+	h8300_disable_irq_pin(irq);
+	if (((unsigned long)irq_list[irq] & 0x80000000) == 0) {
+		kfree(irq_list[irq]);
+		irq_list[irq] = NULL;
+	}
+}
+
+EXPORT_SYMBOL(free_irq);
+
+/*
+ * Do we need these probe functions on the m68k?
+ */
+unsigned long probe_irq_on (void)
+{
+	return 0;
+}
+
+EXPORT_SYMBOL(probe_irq_on);
+
+int probe_irq_off (unsigned long irqs)
+{
+	return 0;
+}
+
+EXPORT_SYMBOL(probe_irq_off);
+
+void enable_irq(unsigned int irq)
+{
+	if (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS))
+		IER_REGS |= 1 << (irq - EXT_IRQ0);
+}
+
+void disable_irq(unsigned int irq)
+{
+	if (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS))
+		IER_REGS &= ~(1 << (irq - EXT_IRQ0));
+}
+
+asmlinkage void process_int(int irq, struct pt_regs *fp)
+{
+	irq_enter();
+	h8300_clear_isr(irq);
+	if (irq >= NR_TRAPS && irq < NR_IRQS) {
+		if (irq_list[irq]) {
+			irq_list[irq]->handler(irq, irq_list[irq]->dev_id, fp);
+			irq_list[irq]->count++;
+			if (irq_list[irq]->flags & SA_SAMPLE_RANDOM)
+				add_interrupt_randomness(irq);
+		}
+	} else {
+		BUG();
+	}
+	irq_exit();
+}
+
+int show_interrupts(struct seq_file *p, void *v)
+{
+	int i = *(loff_t *) v;
+
+	if ((i < NR_IRQS) && (irq_list[i]!=NULL)) {
+		seq_printf(p, "%3d: %10u ",i,irq_list[i]->count);
+		seq_printf(p, "%s\n", irq_list[i]->devname);
+	}
+
+	return 0;
+}
+
+void init_irq_proc(void)
+{
+}
+
+static int __init enable_kmalloc(void)
+{
+	use_kmalloc = 1;
+	return 0;
+}
+core_initcall(enable_kmalloc);

arch/h8300/kernel/module.c

@@ -0,0 +1,122 @@
+#include <linux/moduleloader.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(fmt...)
+#endif
+
+void *module_alloc(unsigned long size)
+{
+	if (size == 0)
+		return NULL;
+	return vmalloc(size);
+}
+
+
+/* Free memory returned from module_alloc */
+void module_free(struct module *mod, void *module_region)
+{
+	vfree(module_region);
+	/* FIXME: If module_region == mod->init_region, trim exception
+           table entries. */
+}
+
+/* We don't need anything special. */
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+			      Elf_Shdr *sechdrs,
+			      char *secstrings,
+			      struct module *mod)
+{
+	return 0;
+}
+
+int apply_relocate(Elf32_Shdr *sechdrs,
+		   const char *strtab,
+		   unsigned int symindex,
+		   unsigned int relsec,
+		   struct module *me)
+{
+	printk(KERN_ERR "module %s: RELOCATION unsupported\n",
+	       me->name);
+	return -ENOEXEC;
+}
+
+int apply_relocate_add(Elf32_Shdr *sechdrs,
+		       const char *strtab,
+		       unsigned int symindex,
+		       unsigned int relsec,
+		       struct module *me)
+{
+	unsigned int i;
+	Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
+
+	DEBUGP("Applying relocate section %u to %u\n", relsec,
+	       sechdrs[relsec].sh_info);
+	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
+		/* This is where to make the change */
+		uint32_t *loc = (uint32_t *)(sechdrs[sechdrs[relsec].sh_info].sh_addr
+					     + rela[i].r_offset);
+		/* This is the symbol it is referring to.  Note that all
+		   undefined symbols have been resolved.  */
+		Elf32_Sym *sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
+			+ ELF32_R_SYM(rela[i].r_info);
+		uint32_t v = sym->st_value + rela[i].r_addend;
+
+		switch (ELF32_R_TYPE(rela[i].r_info)) {
+		case R_H8_DIR24R8:
+			loc = (uint32_t *)((uint32_t)loc - 1);
+			*loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v);
+			break;
+		case R_H8_DIR24A8:
+			if (ELF32_R_SYM(rela[i].r_info))
+				*loc += v;
+			break;
+		case R_H8_DIR32:
+		case R_H8_DIR32A16:
+			*loc += v;
+			break;
+		case R_H8_PCREL16:
+			v -= (unsigned long)loc + 2;
+			if ((Elf32_Sword)v > 0x7fff || 
+			    (Elf32_Sword)v < -(Elf32_Sword)0x8000)
+				goto overflow;
+			else 
+				*(unsigned short *)loc = v;
+			break;
+		case R_H8_PCREL8:
+			v -= (unsigned long)loc + 1;
+			if ((Elf32_Sword)v > 0x7f || 
+			    (Elf32_Sword)v < -(Elf32_Sword)0x80)
+				goto overflow;
+			else 
+				*(unsigned char *)loc = v;
+			break;
+		default:
+			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+			       me->name, ELF32_R_TYPE(rela[i].r_info));
+			return -ENOEXEC;
+		}
+	}
+	return 0;
+ overflow:
+	printk(KERN_ERR "module %s: relocation offset overflow: %08x\n",
+	       me->name, rela[i].r_offset);
+	return -ENOEXEC;
+}
+
+int module_finalize(const Elf_Ehdr *hdr,
+		    const Elf_Shdr *sechdrs,
+		    struct module *me)
+{
+	return 0;
+}
+
+void module_arch_cleanup(struct module *mod)
+{
+}

arch/h8300/kernel/process.c

@@ -0,0 +1,288 @@
+/*
+ *  linux/arch/h8300/kernel/process.c
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/kernel/process.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
+ *                      Kenneth Albanowski <kjahds@kjahds.com>,
+ *                      The Silver Hammer Group, Ltd.
+ *
+ *  linux/arch/m68k/kernel/process.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ *
+ *  68060 fixes by Jesper Skov
+ */
+
+/*
+ * This file handles the architecture-dependent parts of process handling..
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/traps.h>
+#include <asm/setup.h>
+#include <asm/pgtable.h>
+
+asmlinkage void ret_from_fork(void);
+
+/*
+ * The idle loop on an H8/300..
+ */
+#if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM)
+void default_idle(void)
+{
+	while(1) {
+		if (need_resched()) {
+			local_irq_enable();
+			__asm__("sleep");
+			local_irq_disable();
+		}
+		schedule();
+	}
+}
+#else
+void default_idle(void)
+{
+	while(1) {
+		if (need_resched())
+			schedule();
+	}
+}
+#endif
+void (*idle)(void) = default_idle;
+
+/*
+ * The idle thread. There's no useful work to be
+ * done, so just try to conserve power and have a
+ * low exit latency (ie sit in a loop waiting for
+ * somebody to say that they'd like to reschedule)
+ */
+void cpu_idle(void)
+{
+	idle();
+}
+
+void machine_restart(char * __unused)
+{
+	local_irq_disable();
+	__asm__("jmp @@0"); 
+}
+
+EXPORT_SYMBOL(machine_restart);
+
+void machine_halt(void)
+{
+	local_irq_disable();
+	__asm__("sleep");
+	for (;;);
+}
+
+EXPORT_SYMBOL(machine_halt);
+
+void machine_power_off(void)
+{
+	local_irq_disable();
+	__asm__("sleep");
+	for (;;);
+}
+
+EXPORT_SYMBOL(machine_power_off);
+
+void show_regs(struct pt_regs * regs)
+{
+	printk("\nPC: %08lx  Status: %02x",
+	       regs->pc, regs->ccr);
+	printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx",
+	       regs->orig_er0, regs->er0, regs->er1);
+	printk("\nER2: %08lx ER3: %08lx ER4: %08lx ER5: %08lx",
+	       regs->er2, regs->er3, regs->er4, regs->er5);
+	printk("\nER6' %08lx ",regs->er6);
+	if (user_mode(regs))
+		printk("USP: %08lx\n", rdusp());
+	else
+		printk("\n");
+}
+
+/*
+ * Create a kernel thread
+ */
+int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
+{
+	long retval;
+	long clone_arg;
+	mm_segment_t fs;
+
+	fs = get_fs();
+	set_fs (KERNEL_DS);
+	clone_arg = flags | CLONE_VM;
+	__asm__("mov.l sp,er3\n\t"
+		"sub.l er2,er2\n\t"
+		"mov.l %2,er1\n\t"
+		"mov.l %1,er0\n\t"
+		"trapa #0\n\t"
+		"cmp.l sp,er3\n\t"
+		"beq 1f\n\t"
+		"mov.l %4,er0\n\t"
+		"mov.l %3,er1\n\t"
+		"jsr @er1\n\t"
+		"mov.l %5,er0\n\t"
+		"trapa #0\n"
+		"1:\n\t"
+		"mov.l er0,%0"
+		:"=r"(retval)
+		:"i"(__NR_clone),"g"(clone_arg),"g"(fn),"g"(arg),"i"(__NR_exit)
+		:"er0","er1","er2","er3");
+	set_fs (fs);
+	return retval;
+}
+
+void flush_thread(void)
+{
+}
+
+/*
+ * "h8300_fork()".. By the time we get here, the
+ * non-volatile registers have also been saved on the
+ * stack. We do some ugly pointer stuff here.. (see
+ * also copy_thread)
+ */
+
+asmlinkage int h8300_fork(struct pt_regs *regs)
+{
+	return -EINVAL;
+}
+
+asmlinkage int h8300_vfork(struct pt_regs *regs)
+{
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, NULL, NULL);
+}
+
+asmlinkage int h8300_clone(struct pt_regs *regs)
+{
+	unsigned long clone_flags;
+	unsigned long newsp;
+
+	/* syscall2 puts clone_flags in er1 and usp in er2 */
+	clone_flags = regs->er1;
+	newsp = regs->er2;
+	if (!newsp)
+		newsp  = rdusp();
+	return do_fork(clone_flags, newsp, regs, 0, NULL, NULL);
+
+}
+
+int copy_thread(int nr, unsigned long clone_flags,
+                unsigned long usp, unsigned long topstk,
+		 struct task_struct * p, struct pt_regs * regs)
+{
+	struct pt_regs * childregs;
+
+	childregs = ((struct pt_regs *) (THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
+
+	*childregs = *regs;
+	childregs->retpc = (unsigned long) ret_from_fork;
+	childregs->er0 = 0;
+
+	p->thread.usp = usp;
+	p->thread.ksp = (unsigned long)childregs;
+
+	return 0;
+}
+
+/*
+ * fill in the user structure for a core dump..
+ */
+void dump_thread(struct pt_regs * regs, struct user * dump)
+{
+/* changed the size calculations - should hopefully work better. lbt */
+	dump->magic = CMAGIC;
+	dump->start_code = 0;
+	dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
+	dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
+	dump->u_dsize = ((unsigned long) (current->mm->brk +
+					  (PAGE_SIZE-1))) >> PAGE_SHIFT;
+	dump->u_dsize -= dump->u_tsize;
+	dump->u_ssize = 0;
+
+	dump->u_ar0 = (struct user_regs_struct *)(((int)(&dump->regs)) -((int)(dump)));
+	dump->regs.er0 = regs->er0;
+	dump->regs.er1 = regs->er1;
+	dump->regs.er2 = regs->er2;
+	dump->regs.er3 = regs->er3;
+	dump->regs.er4 = regs->er4;
+	dump->regs.er5 = regs->er5;
+	dump->regs.er6 = regs->er6;
+	dump->regs.orig_er0 = regs->orig_er0;
+	dump->regs.ccr = regs->ccr;
+	dump->regs.pc  = regs->pc;
+}
+
+/*
+ * sys_execve() executes a new program.
+ */
+asmlinkage int sys_execve(char *name, char **argv, char **envp,int dummy,...)
+{
+	int error;
+	char * filename;
+	struct pt_regs *regs = (struct pt_regs *) ((unsigned char *)&dummy-4);
+
+	lock_kernel();
+	filename = getname(name);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+	error = do_execve(filename, argv, envp, regs);
+	putname(filename);
+out:
+	unlock_kernel();
+	return error;
+}
+
+unsigned long thread_saved_pc(struct task_struct *tsk)
+{
+	return ((struct pt_regs *)tsk->thread.esp0)->pc;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+	unsigned long fp, pc;
+	unsigned long stack_page;
+	int count = 0;
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
+	stack_page = (unsigned long)p;
+	fp = ((struct pt_regs *)p->thread.ksp)->er6;
+	do {
+		if (fp < stack_page+sizeof(struct thread_info) ||
+		    fp >= 8184+stack_page)
+			return 0;
+		pc = ((unsigned long *)fp)[1];
+		if (!in_sched_functions(pc))
+			return pc;
+		fp = *(unsigned long *) fp;
+	} while (count++ < 16);
+	return 0;
+}

arch/h8300/kernel/ptrace.c

@@ -0,0 +1,277 @@
+/*
+ *  linux/arch/h8300/kernel/ptrace.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Based on:
+ *  linux/arch/m68k/kernel/ptrace.c
+ *
+ *  Copyright (C) 1994 by Hamish Macdonald
+ *  Taken from linux/kernel/ptrace.c and modified for M680x0.
+ *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/config.h>
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/signal.h>
+
+/* cpu depend functions */
+extern long h8300_get_reg(struct task_struct *task, int regno);
+extern int  h8300_put_reg(struct task_struct *task, int regno, unsigned long data);
+extern void h8300_disable_trace(struct task_struct *child);
+extern void h8300_enable_trace(struct task_struct *child);
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+inline
+static int read_long(struct task_struct * tsk, unsigned long addr,
+	unsigned long * result)
+{
+	*result = *(unsigned long *)addr;
+	return 0;
+}
+
+void ptrace_disable(struct task_struct *child)
+{
+	h8300_disable_trace(child);
+}
+
+asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+{
+	struct task_struct *child;
+	int ret;
+
+	lock_kernel();
+	ret = -EPERM;
+	if (request == PTRACE_TRACEME) {
+		/* are we already being traced? */
+		if (current->ptrace & PT_PTRACED)
+			goto out;
+		/* set the ptrace bit in the process flags. */
+		current->ptrace |= PT_PTRACED;
+		ret = 0;
+		goto out;
+	}
+	ret = -ESRCH;
+	read_lock(&tasklist_lock);
+	child = find_task_by_pid(pid);
+	if (child)
+		get_task_struct(child);
+	read_unlock(&tasklist_lock);
+	if (!child)
+		goto out;
+
+	ret = -EPERM;
+	if (pid == 1)		/* you may not mess with init */
+		goto out_tsk;
+
+	if (request == PTRACE_ATTACH) {
+		ret = ptrace_attach(child);
+		goto out_tsk;
+	}
+	ret = ptrace_check_attach(child, request == PTRACE_KILL);
+	if (ret < 0)
+		goto out_tsk;
+
+	switch (request) {
+		case PTRACE_PEEKTEXT: /* read word at location addr. */ 
+		case PTRACE_PEEKDATA: {
+			unsigned long tmp;
+
+			ret = read_long(child, addr, &tmp);
+			if (ret < 0)
+				break ;
+			ret = put_user(tmp, (unsigned long *) data);
+			break ;
+		}
+
+	/* read the word at location addr in the USER area. */
+		case PTRACE_PEEKUSR: {
+			unsigned long tmp = 0;
+			
+			if ((addr & 3) || addr < 0 || addr >= sizeof(struct user)) {
+				ret = -EIO;
+				break ;
+			}
+			
+		        ret = 0;  /* Default return condition */
+			addr = addr >> 2; /* temporary hack. */
+
+			if (addr < H8300_REGS_NO)
+				tmp = h8300_get_reg(child, addr);
+			else {
+				switch(addr) {
+				case 49:
+					tmp = child->mm->start_code;
+					break ;
+				case 50:
+					tmp = child->mm->start_data;
+					break ;
+				case 51:
+					tmp = child->mm->end_code;
+					break ;
+				case 52:
+					tmp = child->mm->end_data;
+					break ;
+				default:
+					ret = -EIO;
+				}
+			}
+			if (!ret)
+				ret = put_user(tmp,(unsigned long *) data);
+			break ;
+		}
+
+      /* when I and D space are separate, this will have to be fixed. */
+		case PTRACE_POKETEXT: /* write the word at location addr. */
+		case PTRACE_POKEDATA:
+			ret = 0;
+			if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
+				break;
+			ret = -EIO;
+			break;
+
+		case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
+			if ((addr & 3) || addr < 0 || addr >= sizeof(struct user)) {
+				ret = -EIO;
+				break ;
+			}
+			addr = addr >> 2; /* temporary hack. */
+			    
+			if (addr == PT_ORIG_ER0) {
+				ret = -EIO;
+				break ;
+			}
+			if (addr < H8300_REGS_NO) {
+				ret = h8300_put_reg(child, addr, data);
+				break ;
+			}
+			ret = -EIO;
+			break ;
+		case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
+		case PTRACE_CONT: { /* restart after signal. */
+			ret = -EIO;
+			if ((unsigned long) data >= _NSIG)
+				break ;
+			if (request == PTRACE_SYSCALL)
+				set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+			else
+				clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+			child->exit_code = data;
+			wake_up_process(child);
+			/* make sure the single step bit is not set. */
+			h8300_disable_trace(child);
+			ret = 0;
+		}
+
+/*
+ * make the child exit.  Best I can do is send it a sigkill. 
+ * perhaps it should be put in the status that it wants to 
+ * exit.
+ */
+		case PTRACE_KILL: {
+
+			ret = 0;
+			if (child->exit_state == EXIT_ZOMBIE) /* already dead */
+				break;
+			child->exit_code = SIGKILL;
+			h8300_disable_trace(child);
+			wake_up_process(child);
+			break;
+		}
+
+		case PTRACE_SINGLESTEP: {  /* set the trap flag. */
+			ret = -EIO;
+			if ((unsigned long) data > _NSIG)
+				break;
+			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+			child->exit_code = data;
+			h8300_enable_trace(child);
+			wake_up_process(child);
+			ret = 0;
+			break;
+		}
+
+		case PTRACE_DETACH:	/* detach a process that was attached. */
+			ret = ptrace_detach(child, data);
+			break;
+
+		case PTRACE_GETREGS: { /* Get all gp regs from the child. */
+		  	int i;
+			unsigned long tmp;
+			for (i = 0; i < H8300_REGS_NO; i++) {
+			    tmp = h8300_get_reg(child, i);
+			    if (put_user(tmp, (unsigned long *) data)) {
+				ret = -EFAULT;
+				break;
+			    }
+			    data += sizeof(long);
+			}
+			ret = 0;
+			break;
+		}
+
+		case PTRACE_SETREGS: { /* Set all gp regs in the child. */
+			int i;
+			unsigned long tmp;
+			for (i = 0; i < H8300_REGS_NO; i++) {
+			    if (get_user(tmp, (unsigned long *) data)) {
+				ret = -EFAULT;
+				break;
+			    }
+			    h8300_put_reg(child, i, tmp);
+			    data += sizeof(long);
+			}
+			ret = 0;
+			break;
+		}
+
+		default:
+			ret = -EIO;
+			break;
+	}
+out_tsk:
+	put_task_struct(child);
+out:
+	unlock_kernel();
+	return ret;
+}
+
+asmlinkage void syscall_trace(void)
+{
+	if (!test_thread_flag(TIF_SYSCALL_TRACE))
+		return;
+	if (!(current->ptrace & PT_PTRACED))
+		return;
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
+				 ? 0x80 : 0));
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (current->exit_code) {
+		send_sig(current->exit_code, current, 1);
+		current->exit_code = 0;
+	}
+}

arch/h8300/kernel/semaphore.c

@@ -0,0 +1,133 @@
+/*
+ *  Generic semaphore code. Buyer beware. Do your own
+ * specific changes in <asm/semaphore-helper.h>
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <asm/semaphore-helper.h>
+
+#ifndef CONFIG_RMW_INSNS
+spinlock_t semaphore_wake_lock;
+#endif
+
+/*
+ * Semaphores are implemented using a two-way counter:
+ * The "count" variable is decremented for each process
+ * that tries to sleep, while the "waking" variable is
+ * incremented when the "up()" code goes to wake up waiting
+ * processes.
+ *
+ * Notably, the inline "up()" and "down()" functions can
+ * efficiently test if they need to do any extra work (up
+ * needs to do something only if count was negative before
+ * the increment operation.
+ *
+ * waking_non_zero() (from asm/semaphore.h) must execute
+ * atomically.
+ *
+ * When __up() is called, the count was negative before
+ * incrementing it, and we need to wake up somebody.
+ *
+ * This routine adds one to the count of processes that need to
+ * wake up and exit.  ALL waiting processes actually wake up but
+ * only the one that gets to the "waking" field first will gate
+ * through and acquire the semaphore.  The others will go back
+ * to sleep.
+ *
+ * Note that these functions are only called when there is
+ * contention on the lock, and as such all this is the
+ * "non-critical" part of the whole semaphore business. The
+ * critical part is the inline stuff in <asm/semaphore.h>
+ * where we want to avoid any extra jumps and calls.
+ */
+void __up(struct semaphore *sem)
+{
+	wake_one_more(sem);
+	wake_up(&sem->wait);
+}
+
+/*
+ * Perform the "down" function.  Return zero for semaphore acquired,
+ * return negative for signalled out of the function.
+ *
+ * If called from __down, the return is ignored and the wait loop is
+ * not interruptible.  This means that a task waiting on a semaphore
+ * using "down()" cannot be killed until someone does an "up()" on
+ * the semaphore.
+ *
+ * If called from __down_interruptible, the return value gets checked
+ * upon return.  If the return value is negative then the task continues
+ * with the negative value in the return register (it can be tested by
+ * the caller).
+ *
+ * Either form may be used in conjunction with "up()".
+ *
+ */
+
+
+#define DOWN_HEAD(task_state)						\
+									\
+									\
+	current->state = (task_state);					\
+	add_wait_queue(&sem->wait, &wait);				\
+									\
+	/*								\
+	 * Ok, we're set up.  sem->count is known to be less than zero	\
+	 * so we must wait.						\
+	 *								\
+	 * We can let go the lock for purposes of waiting.		\
+	 * We re-acquire it after awaking so as to protect		\
+	 * all semaphore operations.					\
+	 *								\
+	 * If "up()" is called before we call waking_non_zero() then	\
+	 * we will catch it right away.  If it is called later then	\
+	 * we will have to go through a wakeup cycle to catch it.	\
+	 *								\
+	 * Multiple waiters contend for the semaphore lock to see	\
+	 * who gets to gate through and who has to wait some more.	\
+	 */								\
+	for (;;) {
+
+#define DOWN_TAIL(task_state)			\
+		current->state = (task_state);	\
+	}					\
+	current->state = TASK_RUNNING;		\
+	remove_wait_queue(&sem->wait, &wait);
+
+void __sched __down(struct semaphore * sem)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
+	if (waking_non_zero(sem))
+		break;
+	schedule();
+	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
+}
+
+int __sched __down_interruptible(struct semaphore * sem)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	int ret = 0;
+
+	DOWN_HEAD(TASK_INTERRUPTIBLE)
+
+	ret = waking_non_zero_interruptible(sem, current);
+	if (ret)
+	{
+		if (ret == 1)
+			/* ret != 0 only if we get interrupted -arca */
+			ret = 0;
+		break;
+	}
+	schedule();
+	DOWN_TAIL(TASK_INTERRUPTIBLE)
+	return ret;
+}
+
+int __down_trylock(struct semaphore * sem)
+{
+	return waking_non_zero_trylock(sem);
+}

arch/h8300/kernel/setup.c

@@ -0,0 +1,248 @@
+/*
+ *  linux/arch/h8300/kernel/setup.c
+ *
+ *  Copyleft  ()) 2000       James D. Schettine {james@telos-systems.com}
+ *  Copyright (C) 1999,2000  Greg Ungerer (gerg@snapgear.com)
+ *  Copyright (C) 1998,1999  D. Jeff Dionne <jeff@lineo.ca>
+ *  Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
+ *  Copyright (C) 1995       Hamish Macdonald
+ *  Copyright (C) 2000       Lineo Inc. (www.lineo.com) 
+ *  Copyright (C) 2001 	     Lineo, Inc. <www.lineo.com>
+ *
+ *  H8/300 porting Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+/*
+ * This file handles the architecture-dependent parts of system setup
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fs.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/genhd.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/major.h>
+#include <linux/bootmem.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_BLK_DEV_INITRD
+#include <asm/pgtable.h>
+#endif
+
+#if defined(__H8300H__)
+#define CPU "H8/300H"
+#include <asm/regs306x.h>
+#endif
+
+#if defined(__H8300S__)
+#define CPU "H8S"
+#include <asm/regs267x.h>
+#endif
+
+#define STUBSIZE 0xc000;
+
+unsigned long rom_length;
+unsigned long memory_start;
+unsigned long memory_end;
+
+char command_line[COMMAND_LINE_SIZE];
+
+extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
+extern int _ramstart, _ramend;
+extern char _target_name[];
+extern void h8300_gpio_init(void);
+
+#if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) \
+    && defined(CONFIG_GDB_MAGICPRINT)
+/* printk with gdb service */
+static void gdb_console_output(struct console *c, const char *msg, unsigned len)
+{
+	for (; len > 0; len--) {
+		asm("mov.w %0,r2\n\t"
+                    "jsr @0xc4"::"r"(*msg++):"er2");
+	}
+}
+
+/*
+ *	Setup initial baud/bits/parity. We do two things here:
+ *	- construct a cflag setting for the first rs_open()
+ *	- initialize the serial port
+ *	Return non-zero if we didn't find a serial port.
+ */
+static int __init gdb_console_setup(struct console *co, char *options)
+{
+	return 0;
+}
+
+static const struct console gdb_console = {
+	.name		= "gdb_con",
+	.write		= gdb_console_output,
+	.device		= NULL,
+	.setup		= gdb_console_setup,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+};
+#endif
+
+void __init setup_arch(char **cmdline_p)
+{
+	int bootmap_size;
+
+	memory_start = (unsigned long) &_ramstart;
+
+	/* allow for ROMFS on the end of the kernel */
+	if (memcmp((void *)memory_start, "-rom1fs-", 8) == 0) {
+#if defined(CONFIG_BLK_DEV_INITRD)
+		initrd_start = memory_start;
+		initrd_end = memory_start += be32_to_cpu(((unsigned long *) (memory_start))[2]);
+#else
+		memory_start += be32_to_cpu(((unsigned long *) memory_start)[2]);
+#endif
+	}
+	memory_start = PAGE_ALIGN(memory_start);
+#if !defined(CONFIG_BLKDEV_RESERVE)
+	memory_end = (unsigned long) &_ramend; /* by now the stack is part of the init task */
+#if defined(CONFIG_GDB_DEBUG)
+	memory_end -= STUBSIZE;
+#endif
+#else
+	if ((memory_end < CONFIG_BLKDEV_RESERVE_ADDRESS) && 
+	    (memory_end > CONFIG_BLKDEV_RESERVE_ADDRESS)
+	    /* overlap userarea */
+	    memory_end = CONFIG_BLKDEV_RESERVE_ADDRESS; 
+#endif
+
+	init_mm.start_code = (unsigned long) &_stext;
+	init_mm.end_code = (unsigned long) &_etext;
+	init_mm.end_data = (unsigned long) &_edata;
+	init_mm.brk = (unsigned long) 0; 
+
+#if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) && defined(CONFIG_GDB_MAGICPRINT)
+	register_console((struct console *)&gdb_console);
+#endif
+
+	printk(KERN_INFO "\r\n\nuClinux " CPU "\n");
+	printk(KERN_INFO "Target Hardware: %s\n",_target_name);
+	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
+	printk(KERN_INFO "H8/300 series support by Yoshinori Sato <[email protected]>\n");
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
+		"BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
+		(int) &_sdata, (int) &_edata,
+		(int) &_sbss, (int) &_ebss);
+	printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x "
+		"STACK=0x%06x-0x%06x\n",
+	       (int) &_ebss, (int) memory_start,
+		(int) memory_start, (int) memory_end,
+		(int) memory_end, (int) &_ramend);
+#endif
+
+#ifdef CONFIG_DEFAULT_CMDLINE
+	/* set from default command line */
+	if (*command_line == '\0')
+		strcpy(command_line,CONFIG_KERNEL_COMMAND);
+#endif
+	/* Keep a copy of command line */
+	*cmdline_p = &command_line[0];
+	memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE);
+	saved_command_line[COMMAND_LINE_SIZE-1] = 0;
+
+#ifdef DEBUG
+	if (strlen(*cmdline_p)) 
+		printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
+#endif
+
+	/*
+	 * give all the memory to the bootmap allocator,  tell it to put the
+	 * boot mem_map at the start of memory
+	 */
+	bootmap_size = init_bootmem_node(
+			NODE_DATA(0),
+			memory_start >> PAGE_SHIFT, /* map goes here */
+			PAGE_OFFSET >> PAGE_SHIFT,	/* 0 on coldfire */
+			memory_end >> PAGE_SHIFT);
+	/*
+	 * free the usable memory,  we have to make sure we do not free
+	 * the bootmem bitmap so we then reserve it after freeing it :-)
+	 */
+	free_bootmem(memory_start, memory_end - memory_start);
+	reserve_bootmem(memory_start, bootmap_size);
+	/*
+	 * get kmalloc into gear
+	 */
+	paging_init();
+	h8300_gpio_init();
+#if defined(CONFIG_H8300_AKI3068NET) && defined(CONFIG_IDE)
+	{
+#define AREABIT(addr) (1 << (((addr) >> 21) & 7))
+		/* setup BSC */
+		volatile unsigned char *abwcr = (volatile unsigned char *)ABWCR;
+		volatile unsigned char *cscr = (volatile unsigned char *)CSCR;
+		*abwcr &= ~(AREABIT(CONFIG_H8300_IDE_BASE) | AREABIT(CONFIG_H8300_IDE_ALT));
+		*cscr  |= (AREABIT(CONFIG_H8300_IDE_BASE) | AREABIT(CONFIG_H8300_IDE_ALT)) | 0x0f;
+	}
+#endif
+#ifdef DEBUG
+	printk(KERN_DEBUG "Done setup_arch\n");
+#endif
+}
+
+/*
+ *	Get CPU information for use by the procfs.
+ */
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+    char *cpu;
+    int mode;
+    u_long clockfreq;
+
+    cpu = CPU;
+    mode = *(volatile unsigned char *)MDCR & 0x07;
+
+    clockfreq = CONFIG_CPU_CLOCK;
+
+    seq_printf(m,  "CPU:\t\t%s (mode:%d)\n"
+		   "Clock:\t\t%lu.%1luMHz\n"
+		   "BogoMips:\t%lu.%02lu\n"
+		   "Calibration:\t%lu loops\n",
+	           cpu,mode,
+		   clockfreq/1000,clockfreq%1000,
+		   (loops_per_jiffy*HZ)/500000,((loops_per_jiffy*HZ)/5000)%100,
+		   (loops_per_jiffy*HZ));
+
+    return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};

arch/h8300/kernel/signal.c

@@ -0,0 +1,552 @@
+/*
+ *  linux/arch/h8300/kernel/signal.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+/*
+ * uClinux H8/300 support by Yoshinori Sato <ysato@users.sourceforge.jp>
+ *                and David McCullough <davidm@snapgear.com>
+ *
+ * Based on
+ * Linux/m68k by Hamish Macdonald
+ */
+
+/*
+ * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
+ * Atari :-) Current limitation: Only one sigstack can be active at one time.
+ * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
+ * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
+ * signal handlers!
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/syscalls.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <linux/highuid.h>
+#include <linux/personality.h>
+#include <linux/tty.h>
+#include <linux/binfmts.h>
+#include <linux/suspend.h>
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/traps.h>
+#include <asm/ucontext.h>
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+asmlinkage int do_sigsuspend(struct pt_regs *regs)
+{
+	old_sigset_t mask = regs->er3;
+	sigset_t saveset;
+
+	mask &= _BLOCKABLE;
+	spin_lock_irq(&current->sighand->siglock);
+	saveset = current->blocked;
+	siginitset(&current->blocked, mask);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	regs->er0 = -EINTR;
+	while (1) {
+		current->state = TASK_INTERRUPTIBLE;
+		schedule();
+		if (do_signal(regs, &saveset))
+			return -EINTR;
+	}
+}
+
+asmlinkage int
+do_rt_sigsuspend(struct pt_regs *regs)
+{
+	sigset_t *unewset = (sigset_t *)regs->er1;
+	size_t sigsetsize = (size_t)regs->er2;
+	sigset_t saveset, newset;
+
+	/* XXX: Don't preclude handling different sized sigset_t's.  */
+	if (sigsetsize != sizeof(sigset_t))
+		return -EINVAL;
+
+	if (copy_from_user(&newset, unewset, sizeof(newset)))
+		return -EFAULT;
+	sigdelsetmask(&newset, ~_BLOCKABLE);
+
+	spin_lock_irq(&current->sighand->siglock);
+	saveset = current->blocked;
+	current->blocked = newset;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	regs->er0 = -EINTR;
+	while (1) {
+		current->state = TASK_INTERRUPTIBLE;
+		schedule();
+		if (do_signal(regs, &saveset))
+			return -EINTR;
+	}
+}
+
+asmlinkage int 
+sys_sigaction(int sig, const struct old_sigaction *act,
+	      struct old_sigaction *oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	if (act) {
+		old_sigset_t mask;
+		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+			return -EFAULT;
+		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
+		__get_user(mask, &act->sa_mask);
+		siginitset(&new_ka.sa.sa_mask, mask);
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+			return -EFAULT;
+		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+	}
+
+	return ret;
+}
+
+asmlinkage int
+sys_sigaltstack(const stack_t *uss, stack_t *uoss)
+{
+	return do_sigaltstack(uss, uoss, rdusp());
+}
+
+
+/*
+ * Do a signal return; undo the signal stack.
+ *
+ * Keep the return code on the stack quadword aligned!
+ * That makes the cache flush below easier.
+ */
+
+struct sigframe
+{
+	long dummy_er0;
+	long dummy_vector;
+#if defined(CONFIG_CPU_H8S)
+	short dummy_exr;
+#endif
+	long dummy_pc;
+	char *pretcode;
+	unsigned char retcode[8];
+	unsigned long extramask[_NSIG_WORDS-1];
+	struct sigcontext sc;
+	int sig;
+} __attribute__((aligned(2),packed));
+
+struct rt_sigframe
+{
+	long dummy_er0;
+	long dummy_vector;
+#if defined(CONFIG_CPU_H8S)
+	short dummy_exr;
+#endif
+	long dummy_pc;
+	char *pretcode;
+	struct siginfo *pinfo;
+	void *puc;
+	unsigned char retcode[8];
+	struct siginfo info;
+	struct ucontext uc;
+	int sig;
+} __attribute__((aligned(2),packed));
+
+static inline int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc,
+		   int *pd0)
+{
+	int err = 0;
+	unsigned int ccr;
+	unsigned int usp;
+	unsigned int er0;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+#define COPY(r) err |= __get_user(regs->r, &usc->sc_##r)    /* restore passed registers */
+	COPY(er1);
+	COPY(er2);
+	COPY(er3);
+	COPY(er5);
+	COPY(pc);
+	ccr = regs->ccr & 0x10;
+	COPY(ccr);
+#undef COPY
+	regs->ccr &= 0xef;
+	regs->ccr |= ccr;
+	regs->orig_er0 = -1;		/* disable syscall checks */
+	err |= __get_user(usp, &usc->sc_usp);
+	wrusp(usp);
+
+	err |= __get_user(er0, &usc->sc_er0);
+	*pd0 = er0;
+	return err;
+}
+
+asmlinkage int do_sigreturn(unsigned long __unused,...)
+{
+	struct pt_regs *regs = (struct pt_regs *) (&__unused - 1);
+	unsigned long usp = rdusp();
+	struct sigframe *frame = (struct sigframe *)(usp - 4);
+	sigset_t set;
+	int er0;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+	if (__get_user(set.sig[0], &frame->sc.sc_mask) ||
+	    (_NSIG_WORDS > 1 &&
+	     __copy_from_user(&set.sig[1], &frame->extramask,
+			      sizeof(frame->extramask))))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	spin_lock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+	
+	if (restore_sigcontext(regs, &frame->sc, &er0))
+		goto badframe;
+	return er0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+asmlinkage int do_rt_sigreturn(unsigned long __unused,...)
+{
+	struct pt_regs *regs = (struct pt_regs *) &__unused;
+	unsigned long usp = rdusp();
+	struct rt_sigframe *frame = (struct rt_sigframe *)(usp - 4);
+	sigset_t set;
+	int er0;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	spin_unlock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_lock_irq(&current->sighand->siglock);
+	
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &er0))
+		goto badframe;
+
+	if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
+		goto badframe;
+
+	return er0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
+			     unsigned long mask)
+{
+	int err = 0;
+
+	err |= __put_user(regs->er0, &sc->sc_er0);
+	err |= __put_user(regs->er1, &sc->sc_er1);
+	err |= __put_user(regs->er2, &sc->sc_er2);
+	err |= __put_user(regs->er3, &sc->sc_er3);
+	err |= __put_user(regs->er4, &sc->sc_er4);
+	err |= __put_user(regs->er5, &sc->sc_er5);
+	err |= __put_user(regs->er6, &sc->sc_er6);
+	err |= __put_user(rdusp(),   &sc->sc_usp);
+	err |= __put_user(regs->pc,  &sc->sc_pc);
+	err |= __put_user(regs->ccr, &sc->sc_ccr);
+	err |= __put_user(mask,      &sc->sc_mask);
+
+	return err;
+}
+
+static inline void *
+get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
+{
+	unsigned long usp;
+
+	/* Default to using normal stack.  */
+	usp = rdusp();
+
+	/* This is the X/Open sanctioned signal stack switching.  */
+	if (ka->sa.sa_flags & SA_ONSTACK) {
+		if (!on_sig_stack(usp))
+			usp = current->sas_ss_sp + current->sas_ss_size;
+	}
+	return (void *)((usp - frame_size) & -8UL);
+}
+
+static void setup_frame (int sig, struct k_sigaction *ka,
+			 sigset_t *set, struct pt_regs *regs)
+{
+	struct sigframe *frame;
+	int err = 0;
+	int usig;
+	unsigned char *ret;
+
+	frame = get_sigframe(ka, regs, sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto give_sigsegv;
+
+	usig = current_thread_info()->exec_domain
+		&& current_thread_info()->exec_domain->signal_invmap
+		&& sig < 32
+		? current_thread_info()->exec_domain->signal_invmap[sig]
+		: sig;
+
+	err |= __put_user(usig, &frame->sig);
+	if (err)
+		goto give_sigsegv;
+
+	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
+	if (err)
+		goto give_sigsegv;
+
+	if (_NSIG_WORDS > 1) {
+		err |= copy_to_user(frame->extramask, &set->sig[1],
+				    sizeof(frame->extramask));
+		if (err)
+			goto give_sigsegv;
+	}
+
+	ret = frame->retcode;
+	if (ka->sa.sa_flags & SA_RESTORER)
+		ret = (unsigned char *)(ka->sa.sa_restorer);
+	else {
+		/* sub.l er0,er0; mov.b #__NR_sigreturn,r0l; trapa #0 */
+		err != __put_user(0x1a80f800 + (__NR_sigreturn & 0xff),
+				  (unsigned long *)(frame->retcode + 0));
+		err |= __put_user(0x5700, (unsigned short *)(frame->retcode + 4));
+	}
+
+	/* Set up to return from userspace.  */
+	err |= __put_user(ret, &frame->pretcode);
+
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up registers for signal handler */
+	wrusp ((unsigned long) frame);
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+	regs->er0 = (current_thread_info()->exec_domain
+			   && current_thread_info()->exec_domain->signal_invmap
+			   && sig < 32
+			   ? current_thread_info()->exec_domain->signal_invmap[sig]
+		          : sig);
+	regs->er1 = (unsigned long)&(frame->sc);
+	regs->er5 = current->mm->start_data;	/* GOT base */
+
+	return;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+}
+
+static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
+			    sigset_t *set, struct pt_regs *regs)
+{
+	struct rt_sigframe *frame;
+	int err = 0;
+	int usig;
+	unsigned char *ret;
+
+	frame = get_sigframe(ka, regs, sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto give_sigsegv;
+
+	usig = current_thread_info()->exec_domain
+		&& current_thread_info()->exec_domain->signal_invmap
+		&& sig < 32
+		? current_thread_info()->exec_domain->signal_invmap[sig]
+		: sig;
+
+	err |= __put_user(usig, &frame->sig);
+	if (err)
+		goto give_sigsegv;
+
+	err |= __put_user(&frame->info, &frame->pinfo);
+	err |= __put_user(&frame->uc, &frame->puc);
+	err |= copy_siginfo_to_user(&frame->info, info);
+	if (err)
+		goto give_sigsegv;
+
+	/* Create the ucontext.  */
+	err |= __put_user(0, &frame->uc.uc_flags);
+	err |= __put_user(0, &frame->uc.uc_link);
+	err |= __put_user((void *)current->sas_ss_sp,
+			  &frame->uc.uc_stack.ss_sp);
+	err |= __put_user(sas_ss_flags(rdusp()),
+			  &frame->uc.uc_stack.ss_flags);
+	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
+	err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up to return from userspace.  */
+	ret = frame->retcode;
+	if (ka->sa.sa_flags & SA_RESTORER)
+		ret = (unsigned char *)(ka->sa.sa_restorer);
+	else {
+		/* sub.l er0,er0; mov.b #__NR_sigreturn,r0l; trapa #0 */
+		err != __put_user(0x1a80f800 + (__NR_sigreturn & 0xff),
+				  (unsigned long *)(frame->retcode + 0));
+		err |= __put_user(0x5700, (unsigned short *)(frame->retcode + 4));
+	}
+	err |= __put_user(ret, &frame->pretcode);
+
+	if (err)
+		goto give_sigsegv;
+
+	/* Set up registers for signal handler */
+	wrusp ((unsigned long) frame);
+	regs->pc  = (unsigned long) ka->sa.sa_handler;
+	regs->er0 = (current_thread_info()->exec_domain
+		     && current_thread_info()->exec_domain->signal_invmap
+		     && sig < 32
+		     ? current_thread_info()->exec_domain->signal_invmap[sig]
+		     : sig);
+	regs->er1 = (unsigned long)&(frame->info);
+	regs->er2 = (unsigned long)&frame->uc;
+	regs->er5 = current->mm->start_data;	/* GOT base */
+
+	return;
+
+give_sigsegv:
+	force_sigsegv(sig, current);
+}
+
+/*
+ * OK, we're invoking a handler
+ */
+static void
+handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
+	      sigset_t *oldset,	struct pt_regs * regs)
+{
+	/* are we from a system call? */
+	if (regs->orig_er0 >= 0) {
+		switch (regs->er0) {
+		        case -ERESTART_RESTARTBLOCK:
+			case -ERESTARTNOHAND:
+				regs->er0 = -EINTR;
+				break;
+
+			case -ERESTARTSYS:
+				if (!(ka->sa.sa_flags & SA_RESTART)) {
+					regs->er0 = -EINTR;
+					break;
+				}
+			/* fallthrough */
+			case -ERESTARTNOINTR:
+				regs->er0 = regs->orig_er0;
+				regs->pc -= 2;
+		}
+	}
+
+	/* set up the stack frame */
+	if (ka->sa.sa_flags & SA_SIGINFO)
+		setup_rt_frame(sig, ka, info, oldset, regs);
+	else
+		setup_frame(sig, ka, oldset, regs);
+
+	if (!(ka->sa.sa_flags & SA_NODEFER)) {
+		spin_lock_irq(&current->sighand->siglock);
+		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+		sigaddset(&current->blocked,sig);
+		recalc_sigpending();
+		spin_unlock_irq(&current->sighand->siglock);
+	}
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ */
+asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset)
+{
+	siginfo_t info;
+	int signr;
+	struct k_sigaction ka;
+
+	/*
+	 * We want the common case to go fast, which
+	 * is why we may in certain cases get here from
+	 * kernel mode. Just return without doing anything
+	 * if so.
+	 */
+	if ((regs->ccr & 0x10))
+		return 1;
+
+	if (current->flags & PF_FREEZE) {
+		refrigerator(0);
+		goto no_signal;
+	}
+
+	current->thread.esp0 = (unsigned long) regs;
+
+	if (!oldset)
+		oldset = &current->blocked;
+
+	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+	if (signr > 0) {
+		/* Whee!  Actually deliver the signal.  */
+		handle_signal(signr, &info, &ka, oldset, regs);
+		return 1;
+	}
+ no_signal:
+	/* Did we come from a system call? */
+	if (regs->orig_er0 >= 0) {
+		/* Restart the system call - no handlers present */
+		if (regs->er0 == -ERESTARTNOHAND ||
+		    regs->er0 == -ERESTARTSYS ||
+		    regs->er0 == -ERESTARTNOINTR) {
+			regs->er0 = regs->orig_er0;
+			regs->pc -= 2;
+		}
+		if (regs->er0 == -ERESTART_RESTARTBLOCK){
+			regs->er0 = __NR_restart_syscall;
+			regs->pc -= 2;
+		}
+	}
+	return 0;
+}

arch/h8300/kernel/sys_h8300.c

@@ -0,0 +1,282 @@
+/*
+ * linux/arch/h8300/kernel/sys_h8300.c
+ *
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the H8/300
+ * platform.
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/syscalls.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/cachectl.h>
+#include <asm/traps.h>
+#include <asm/ipc.h>
+
+/*
+ * sys_pipe() is the normal C calling standard for creating
+ * a pipe. It's not the way unix traditionally does this, though.
+ */
+asmlinkage int sys_pipe(unsigned long * fildes)
+{
+	int fd[2];
+	int error;
+
+	error = do_pipe(fd);
+	if (!error) {
+		if (copy_to_user(fildes, fd, 2*sizeof(int)))
+			error = -EFAULT;
+	}
+	return error;
+}
+
+/* common code for old and new mmaps */
+static inline long do_mmap2(
+	unsigned long addr, unsigned long len,
+	unsigned long prot, unsigned long flags,
+	unsigned long fd, unsigned long pgoff)
+{
+	int error = -EBADF;
+	struct file * file = NULL;
+
+	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+	if (!(flags & MAP_ANONYMOUS)) {
+		file = fget(fd);
+		if (!file)
+			goto out;
+	}
+
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
+	up_write(&current->mm->mmap_sem);
+
+	if (file)
+		fput(file);
+out:
+	return error;
+}
+
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+	unsigned long prot, unsigned long flags,
+	unsigned long fd, unsigned long pgoff)
+{
+	return do_mmap2(addr, len, prot, flags, fd, pgoff);
+}
+
+/*
+ * Perform the select(nd, in, out, ex, tv) and mmap() system
+ * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to
+ * handle more than 4 system call parameters, so these system calls
+ * used a memory block for parameter passing..
+ */
+
+struct mmap_arg_struct {
+	unsigned long addr;
+	unsigned long len;
+	unsigned long prot;
+	unsigned long flags;
+	unsigned long fd;
+	unsigned long offset;
+};
+
+asmlinkage int old_mmap(struct mmap_arg_struct *arg)
+{
+	struct mmap_arg_struct a;
+	int error = -EFAULT;
+
+	if (copy_from_user(&a, arg, sizeof(a)))
+		goto out;
+
+	error = -EINVAL;
+	if (a.offset & ~PAGE_MASK)
+		goto out;
+
+	a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+
+	error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
+out:
+	return error;
+}
+
+#if 0 /* DAVIDM - do we want this */
+struct mmap_arg_struct64 {
+	__u32 addr;
+	__u32 len;
+	__u32 prot;
+	__u32 flags;
+	__u64 offset; /* 64 bits */
+	__u32 fd;
+};
+
+asmlinkage long sys_mmap64(struct mmap_arg_struct64 *arg)
+{
+	int error = -EFAULT;
+	struct file * file = NULL;
+	struct mmap_arg_struct64 a;
+	unsigned long pgoff;
+
+	if (copy_from_user(&a, arg, sizeof(a)))
+		return -EFAULT;
+
+	if ((long)a.offset & ~PAGE_MASK)
+		return -EINVAL;
+
+	pgoff = a.offset >> PAGE_SHIFT;
+	if ((a.offset >> PAGE_SHIFT) != pgoff)
+		return -EINVAL;
+
+	if (!(a.flags & MAP_ANONYMOUS)) {
+		error = -EBADF;
+		file = fget(a.fd);
+		if (!file)
+			goto out;
+	}
+	a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, pgoff);
+	up_write(&current->mm->mmap_sem);
+	if (file)
+		fput(file);
+out:
+	return error;
+}
+#endif
+
+struct sel_arg_struct {
+	unsigned long n;
+	fd_set *inp, *outp, *exp;
+	struct timeval *tvp;
+};
+
+asmlinkage int old_select(struct sel_arg_struct *arg)
+{
+	struct sel_arg_struct a;
+
+	if (copy_from_user(&a, arg, sizeof(a)))
+		return -EFAULT;
+	/* sys_select() does the appropriate kernel locking */
+	return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
+}
+
+/*
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
+ *
+ * This is really horribly ugly.
+ */
+asmlinkage int sys_ipc (uint call, int first, int second,
+			int third, void *ptr, long fifth)
+{
+	int version, ret;
+
+	version = call >> 16; /* hack for backward compatibility */
+	call &= 0xffff;
+
+	if (call <= SEMCTL)
+		switch (call) {
+		case SEMOP:
+			return sys_semop (first, (struct sembuf *)ptr, second);
+		case SEMGET:
+			return sys_semget (first, second, third);
+		case SEMCTL: {
+			union semun fourth;
+			if (!ptr)
+				return -EINVAL;
+			if (get_user(fourth.__pad, (void **) ptr))
+				return -EFAULT;
+			return sys_semctl (first, second, third, fourth);
+			}
+		default:
+			return -EINVAL;
+		}
+	if (call <= MSGCTL) 
+		switch (call) {
+		case MSGSND:
+			return sys_msgsnd (first, (struct msgbuf *) ptr, 
+					  second, third);
+		case MSGRCV:
+			switch (version) {
+			case 0: {
+				struct ipc_kludge tmp;
+				if (!ptr)
+					return -EINVAL;
+				if (copy_from_user (&tmp,
+						    (struct ipc_kludge *)ptr,
+						    sizeof (tmp)))
+					return -EFAULT;
+				return sys_msgrcv (first, tmp.msgp, second,
+						   tmp.msgtyp, third);
+				}
+			default:
+				return sys_msgrcv (first,
+						   (struct msgbuf *) ptr,
+						   second, fifth, third);
+			}
+		case MSGGET:
+			return sys_msgget ((key_t) first, second);
+		case MSGCTL:
+			return sys_msgctl (first, second,
+					   (struct msqid_ds *) ptr);
+		default:
+			return -EINVAL;
+		}
+	if (call <= SHMCTL) 
+		switch (call) {
+		case SHMAT:
+			switch (version) {
+			default: {
+				ulong raddr;
+				ret = do_shmat (first, (char *) ptr,
+						 second, &raddr);
+				if (ret)
+					return ret;
+				return put_user (raddr, (ulong *) third);
+			}
+			}
+		case SHMDT: 
+			return sys_shmdt ((char *)ptr);
+		case SHMGET:
+			return sys_shmget (first, second, third);
+		case SHMCTL:
+			return sys_shmctl (first, second,
+					   (struct shmid_ds *) ptr);
+		default:
+			return -EINVAL;
+		}
+
+	return -EINVAL;
+}
+
+/* sys_cacheflush -- no support.  */
+asmlinkage int
+sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
+{
+	return -EINVAL;
+}
+
+asmlinkage int sys_getpagesize(void)
+{
+	return PAGE_SIZE;
+}
+
+#if defined(CONFIG_SYSCALL_PRINT)
+asmlinkage void syscall_print(void *dummy,...)
+{
+	struct pt_regs *regs = (struct pt_regs *) ((unsigned char *)&dummy-4);
+	printk("call %06lx:%ld 1:%08lx,2:%08lx,3:%08lx,ret:%08lx\n",
+               ((regs->pc)&0xffffff)-2,regs->orig_er0,regs->er1,regs->er2,regs->er3,regs->er0);
+}
+#endif

arch/h8300/kernel/syscalls.S

@@ -0,0 +1,340 @@
+/* Systemcall Entry Table */
+#include <linux/config.h>
+#include <linux/sys.h>
+#include <asm/linkage.h>
+#include <asm/unistd.h>
+	
+.globl SYMBOL_NAME(sys_call_table)
+
+#if defined(CONFIG_CPU_H8300H)
+	.h8300h
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.h8300s
+#endif
+	.section .text
+	.align	2
+SYMBOL_NAME_LABEL(sys_call_table)	
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 0  -  old "setup()" system call*/
+	.long SYMBOL_NAME(sys_exit)
+	.long SYMBOL_NAME(sys_fork)
+	.long SYMBOL_NAME(sys_read)
+	.long SYMBOL_NAME(sys_write)
+	.long SYMBOL_NAME(sys_open)		/* 5 */
+	.long SYMBOL_NAME(sys_close)
+	.long SYMBOL_NAME(sys_waitpid)
+	.long SYMBOL_NAME(sys_creat)
+	.long SYMBOL_NAME(sys_link)
+	.long SYMBOL_NAME(sys_unlink)		/* 10 */
+	.long SYMBOL_NAME(sys_execve)
+	.long SYMBOL_NAME(sys_chdir)
+	.long SYMBOL_NAME(sys_time)
+	.long SYMBOL_NAME(sys_mknod)
+	.long SYMBOL_NAME(sys_chmod)		/* 15 */
+	.long SYMBOL_NAME(sys_chown16)
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old break syscall holder */
+	.long SYMBOL_NAME(sys_stat)
+	.long SYMBOL_NAME(sys_lseek)
+	.long SYMBOL_NAME(sys_getpid)		/* 20 */
+	.long SYMBOL_NAME(sys_mount)
+	.long SYMBOL_NAME(sys_oldumount)
+	.long SYMBOL_NAME(sys_setuid16)
+	.long SYMBOL_NAME(sys_getuid16)
+	.long SYMBOL_NAME(sys_stime)		/* 25 */
+	.long SYMBOL_NAME(sys_ptrace)
+	.long SYMBOL_NAME(sys_alarm)
+	.long SYMBOL_NAME(sys_fstat)
+	.long SYMBOL_NAME(sys_pause)
+	.long SYMBOL_NAME(sys_utime)		/* 30 */
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old stty syscall holder */
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old gtty syscall holder */
+	.long SYMBOL_NAME(sys_access)
+	.long SYMBOL_NAME(sys_nice)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 35 */		/* old ftime syscall holder */
+	.long SYMBOL_NAME(sys_sync)
+	.long SYMBOL_NAME(sys_kill)
+	.long SYMBOL_NAME(sys_rename)
+	.long SYMBOL_NAME(sys_mkdir)
+	.long SYMBOL_NAME(sys_rmdir)		/* 40 */
+	.long SYMBOL_NAME(sys_dup)
+	.long SYMBOL_NAME(sys_pipe)
+	.long SYMBOL_NAME(sys_times)
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old prof syscall holder */
+	.long SYMBOL_NAME(sys_brk)		/* 45 */
+	.long SYMBOL_NAME(sys_setgid16)
+	.long SYMBOL_NAME(sys_getgid16)
+	.long SYMBOL_NAME(sys_signal)
+	.long SYMBOL_NAME(sys_geteuid16)
+	.long SYMBOL_NAME(sys_getegid16)	/* 50 */
+	.long SYMBOL_NAME(sys_acct)
+	.long SYMBOL_NAME(sys_umount)					/* recycled never used phys() */
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old lock syscall holder */
+	.long SYMBOL_NAME(sys_ioctl)
+	.long SYMBOL_NAME(sys_fcntl)		/* 55 */
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old mpx syscall holder */
+	.long SYMBOL_NAME(sys_setpgid)
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old ulimit syscall holder */
+	.long SYMBOL_NAME(sys_ni_syscall)
+	.long SYMBOL_NAME(sys_umask)		/* 60 */
+	.long SYMBOL_NAME(sys_chroot)
+	.long SYMBOL_NAME(sys_ustat)
+	.long SYMBOL_NAME(sys_dup2)
+	.long SYMBOL_NAME(sys_getppid)
+	.long SYMBOL_NAME(sys_getpgrp)		/* 65 */
+	.long SYMBOL_NAME(sys_setsid)
+	.long SYMBOL_NAME(sys_sigaction)
+	.long SYMBOL_NAME(sys_sgetmask)
+	.long SYMBOL_NAME(sys_ssetmask)
+	.long SYMBOL_NAME(sys_setreuid16)	/* 70 */
+	.long SYMBOL_NAME(sys_setregid16)
+	.long SYMBOL_NAME(sys_sigsuspend)
+	.long SYMBOL_NAME(sys_sigpending)
+	.long SYMBOL_NAME(sys_sethostname)
+	.long SYMBOL_NAME(sys_setrlimit)	/* 75 */
+	.long SYMBOL_NAME(sys_old_getrlimit)
+	.long SYMBOL_NAME(sys_getrusage)
+	.long SYMBOL_NAME(sys_gettimeofday)
+	.long SYMBOL_NAME(sys_settimeofday)
+	.long SYMBOL_NAME(sys_getgroups16)	/* 80 */
+	.long SYMBOL_NAME(sys_setgroups16)
+	.long SYMBOL_NAME(old_select)
+	.long SYMBOL_NAME(sys_symlink)
+	.long SYMBOL_NAME(sys_lstat)
+	.long SYMBOL_NAME(sys_readlink)		/* 85 */
+	.long SYMBOL_NAME(sys_uselib)
+	.long SYMBOL_NAME(sys_swapon)
+	.long SYMBOL_NAME(sys_reboot)
+	.long SYMBOL_NAME(old_readdir)
+	.long SYMBOL_NAME(old_mmap)		/* 90 */
+	.long SYMBOL_NAME(sys_munmap)
+	.long SYMBOL_NAME(sys_truncate)
+	.long SYMBOL_NAME(sys_ftruncate)
+	.long SYMBOL_NAME(sys_fchmod)
+	.long SYMBOL_NAME(sys_fchown16)		/* 95 */
+	.long SYMBOL_NAME(sys_getpriority)
+	.long SYMBOL_NAME(sys_setpriority)
+	.long SYMBOL_NAME(sys_ni_syscall)				/* old profil syscall holder */
+	.long SYMBOL_NAME(sys_statfs)
+	.long SYMBOL_NAME(sys_fstatfs)		/* 100 */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* ioperm for i386 */
+	.long SYMBOL_NAME(sys_socketcall)
+	.long SYMBOL_NAME(sys_syslog)
+	.long SYMBOL_NAME(sys_setitimer)
+	.long SYMBOL_NAME(sys_getitimer)	/* 105 */
+	.long SYMBOL_NAME(sys_newstat)
+	.long SYMBOL_NAME(sys_newlstat)
+	.long SYMBOL_NAME(sys_newfstat)
+	.long SYMBOL_NAME(sys_ni_syscall)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* iopl for i386 */ /* 110 */
+	.long SYMBOL_NAME(sys_vhangup)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* obsolete idle() syscall */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* vm86old for i386 */
+	.long SYMBOL_NAME(sys_wait4)
+	.long SYMBOL_NAME(sys_swapoff)		/* 115 */
+	.long SYMBOL_NAME(sys_sysinfo)
+	.long SYMBOL_NAME(sys_ipc)
+	.long SYMBOL_NAME(sys_fsync)
+	.long SYMBOL_NAME(sys_sigreturn)
+	.long SYMBOL_NAME(sys_clone)		/* 120 */
+	.long SYMBOL_NAME(sys_setdomainname)
+	.long SYMBOL_NAME(sys_newuname)
+	.long SYMBOL_NAME(sys_cacheflush)	/* modify_ldt for i386 */
+	.long SYMBOL_NAME(sys_adjtimex)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 125 sys_mprotect */
+	.long SYMBOL_NAME(sys_sigprocmask)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_create_module */
+	.long SYMBOL_NAME(sys_init_module)
+	.long SYMBOL_NAME(sys_delete_module)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 130 sys_get_kernel_syms */
+	.long SYMBOL_NAME(sys_quotactl)
+	.long SYMBOL_NAME(sys_getpgid)
+	.long SYMBOL_NAME(sys_fchdir)
+	.long SYMBOL_NAME(sys_bdflush)
+	.long SYMBOL_NAME(sys_sysfs)		/* 135 */
+	.long SYMBOL_NAME(sys_personality)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* for afs_syscall */
+	.long SYMBOL_NAME(sys_setfsuid16)
+	.long SYMBOL_NAME(sys_setfsgid16)
+	.long SYMBOL_NAME(sys_llseek)		/* 140 */
+	.long SYMBOL_NAME(sys_getdents)
+	.long SYMBOL_NAME(sys_select)
+	.long SYMBOL_NAME(sys_flock)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_msync */
+	.long SYMBOL_NAME(sys_readv)		/* 145 */
+	.long SYMBOL_NAME(sys_writev)
+	.long SYMBOL_NAME(sys_getsid)
+	.long SYMBOL_NAME(sys_fdatasync)
+	.long SYMBOL_NAME(sys_sysctl)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 150 sys_mlock */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_munlock */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_mlockall */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_munlockall */
+	.long SYMBOL_NAME(sys_sched_setparam)
+	.long SYMBOL_NAME(sys_sched_getparam)   /* 155 */
+	.long SYMBOL_NAME(sys_sched_setscheduler)
+	.long SYMBOL_NAME(sys_sched_getscheduler)
+	.long SYMBOL_NAME(sys_sched_yield)
+	.long SYMBOL_NAME(sys_sched_get_priority_max)
+	.long SYMBOL_NAME(sys_sched_get_priority_min)  /* 160 */
+	.long SYMBOL_NAME(sys_sched_rr_get_interval)
+	.long SYMBOL_NAME(sys_nanosleep)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_mremap */
+	.long SYMBOL_NAME(sys_setresuid16)
+	.long SYMBOL_NAME(sys_getresuid16)	/* 165 */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* for vm86 */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_query_module */
+	.long SYMBOL_NAME(sys_poll)
+	.long SYMBOL_NAME(sys_nfsservctl)
+	.long SYMBOL_NAME(sys_setresgid16)	/* 170 */
+	.long SYMBOL_NAME(sys_getresgid16)
+	.long SYMBOL_NAME(sys_prctl)
+	.long SYMBOL_NAME(sys_rt_sigreturn)
+	.long SYMBOL_NAME(sys_rt_sigaction)
+	.long SYMBOL_NAME(sys_rt_sigprocmask)	/* 175 */
+	.long SYMBOL_NAME(sys_rt_sigpending)
+	.long SYMBOL_NAME(sys_rt_sigtimedwait)
+	.long SYMBOL_NAME(sys_rt_sigqueueinfo)
+	.long SYMBOL_NAME(sys_rt_sigsuspend)
+	.long SYMBOL_NAME(sys_pread64)		/* 180 */
+	.long SYMBOL_NAME(sys_pwrite64)
+	.long SYMBOL_NAME(sys_lchown16);
+	.long SYMBOL_NAME(sys_getcwd)
+	.long SYMBOL_NAME(sys_capget)
+	.long SYMBOL_NAME(sys_capset)           /* 185 */
+	.long SYMBOL_NAME(sys_sigaltstack)
+	.long SYMBOL_NAME(sys_sendfile)
+	.long SYMBOL_NAME(sys_ni_syscall)		/* streams1 */
+	.long SYMBOL_NAME(sys_ni_syscall)		/* streams2 */
+	.long SYMBOL_NAME(sys_vfork)            /* 190 */
+	.long SYMBOL_NAME(sys_getrlimit)
+	.long SYMBOL_NAME(sys_mmap2)
+	.long SYMBOL_NAME(sys_truncate64)
+	.long SYMBOL_NAME(sys_ftruncate64)
+	.long SYMBOL_NAME(sys_stat64)		/* 195 */
+	.long SYMBOL_NAME(sys_lstat64)
+	.long SYMBOL_NAME(sys_fstat64)
+	.long SYMBOL_NAME(sys_chown)
+	.long SYMBOL_NAME(sys_getuid)
+	.long SYMBOL_NAME(sys_getgid)		/* 200 */
+	.long SYMBOL_NAME(sys_geteuid)
+	.long SYMBOL_NAME(sys_getegid)
+	.long SYMBOL_NAME(sys_setreuid)
+	.long SYMBOL_NAME(sys_setregid)
+	.long SYMBOL_NAME(sys_getgroups)	/* 205 */
+	.long SYMBOL_NAME(sys_setgroups)
+	.long SYMBOL_NAME(sys_fchown)
+	.long SYMBOL_NAME(sys_setresuid)
+	.long SYMBOL_NAME(sys_getresuid)
+	.long SYMBOL_NAME(sys_setresgid)	/* 210 */
+	.long SYMBOL_NAME(sys_getresgid)
+	.long SYMBOL_NAME(sys_lchown)
+	.long SYMBOL_NAME(sys_setuid)
+	.long SYMBOL_NAME(sys_setgid)
+	.long SYMBOL_NAME(sys_setfsuid)		/* 215 */
+	.long SYMBOL_NAME(sys_setfsgid)
+	.long SYMBOL_NAME(sys_pivot_root)
+	.long SYMBOL_NAME(sys_ni_syscall)
+	.long SYMBOL_NAME(sys_ni_syscall)
+	.long SYMBOL_NAME(sys_getdents64)	/* 220 */
+	.long SYMBOL_NAME(sys_fcntl64)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* reserved for TUX */
+	.long SYMBOL_NAME(sys_ni_syscall)
+	.long SYMBOL_NAME(sys_gettid)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 225 */ /* sys_readahead */
+	.long SYMBOL_NAME(sys_setxattr)
+	.long SYMBOL_NAME(sys_lsetxattr)
+	.long SYMBOL_NAME(sys_fsetxattr)
+	.long SYMBOL_NAME(sys_getxattr)
+	.long SYMBOL_NAME(sys_lgetxattr)	/* 230 */
+	.long SYMBOL_NAME(sys_fgetxattr)
+	.long SYMBOL_NAME(sys_listxattr)
+	.long SYMBOL_NAME(sys_llistxattr)
+	.long SYMBOL_NAME(sys_flistxattr)
+	.long SYMBOL_NAME(sys_removexattr)	/* 235 */
+	.long SYMBOL_NAME(sys_lremovexattr)
+	.long SYMBOL_NAME(sys_fremovexattr)
+	.long SYMBOL_NAME(sys_tkill)
+	.long SYMBOL_NAME(sys_sendfile64)
+	.long SYMBOL_NAME(sys_futex)		/* 240 */
+	.long SYMBOL_NAME(sys_sched_setaffinity)
+	.long SYMBOL_NAME(sys_sched_getaffinity)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_set_thread_area */
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_get_thread_area */
+	.long SYMBOL_NAME(sys_io_setup)		/* 245 */
+	.long SYMBOL_NAME(sys_io_destroy)
+	.long SYMBOL_NAME(sys_io_getevents)
+	.long SYMBOL_NAME(sys_io_submit)
+	.long SYMBOL_NAME(sys_io_cancel)
+	.long SYMBOL_NAME(sys_fadvise64)	/* 250 */
+	.long SYMBOL_NAME(sys_ni_syscall)
+	.long SYMBOL_NAME(sys_exit_group)
+	.long SYMBOL_NAME(sys_lookup_dcookie)
+	.long SYMBOL_NAME(sys_epoll_create)
+	.long SYMBOL_NAME(sys_epoll_ctl)	/* 255 */
+	.long SYMBOL_NAME(sys_epoll_wait)
+ 	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_remap_file_pages */
+ 	.long SYMBOL_NAME(sys_set_tid_address)
+ 	.long SYMBOL_NAME(sys_timer_create)
+ 	.long SYMBOL_NAME(sys_timer_settime)	/* 260 */
+ 	.long SYMBOL_NAME(sys_timer_gettime)
+ 	.long SYMBOL_NAME(sys_timer_getoverrun)
+ 	.long SYMBOL_NAME(sys_timer_delete)
+ 	.long SYMBOL_NAME(sys_clock_settime)
+ 	.long SYMBOL_NAME(sys_clock_gettime)	/* 265 */
+ 	.long SYMBOL_NAME(sys_clock_getres)
+ 	.long SYMBOL_NAME(sys_clock_nanosleep)
+	.long SYMBOL_NAME(sys_statfs64)
+	.long SYMBOL_NAME(sys_fstatfs64)	
+	.long SYMBOL_NAME(sys_tgkill)		/* 270 */
+	.long SYMBOL_NAME(sys_utimes)
+ 	.long SYMBOL_NAME(sys_fadvise64_64)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_vserver */
+	.long SYMBOL_NAME(sys_mbind)
+	.long SYMBOL_NAME(sys_get_mempolicy)
+	.long SYMBOL_NAME(sys_set_mempolicy)
+	.long SYMBOL_NAME(sys_mq_open)
+	.long SYMBOL_NAME(sys_mq_unlink)
+	.long SYMBOL_NAME(sys_mq_timedsend)
+	.long SYMBOL_NAME(sys_mq_timedreceive)	/* 280 */
+	.long SYMBOL_NAME(sys_mq_notify)
+	.long SYMBOL_NAME(sys_mq_getsetattr)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* reserved for kexec */
+	.long SYMBOL_NAME(sys_waitid)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 285 */ /* available */
+	.long SYMBOL_NAME(sys_add_key)
+	.long SYMBOL_NAME(sys_request_key)
+	.long SYMBOL_NAME(sys_keyctl)
+
+	.rept NR_syscalls-(.-SYMBOL_NAME(sys_call_table))/4
+		.long SYMBOL_NAME(sys_ni_syscall)
+	.endr
+
+	.macro	call_sp addr
+	mov.l	#SYMBOL_NAME(\addr),er6
+	bra	SYMBOL_NAME(syscall_trampoline):8
+	.endm
+
+SYMBOL_NAME_LABEL(sys_clone)	
+	call_sp	h8300_clone
+	
+SYMBOL_NAME_LABEL(sys_sigsuspend)
+	call_sp	do_sigsuspend
+
+SYMBOL_NAME_LABEL(sys_rt_sigsuspend)
+	call_sp	do_rt_sigsuspend
+
+SYMBOL_NAME_LABEL(sys_sigreturn)
+	call_sp	do_sigreturn
+
+SYMBOL_NAME_LABEL(sys_rt_sigreturn)
+	call_sp	do_rt_sigreturn
+
+SYMBOL_NAME_LABEL(sys_fork)
+	call_sp	h8300_fork
+
+SYMBOL_NAME_LABEL(sys_vfork)
+	call_sp	h8300_vfork
+
+SYMBOL_NAME_LABEL(syscall_trampoline)
+	mov.l	sp,er0
+	jmp	@er6

arch/h8300/kernel/time.c

@@ -0,0 +1,134 @@
+/*
+ *  linux/arch/h8300/kernel/time.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Copied/hacked from:
+ *
+ *  linux/arch/m68k/kernel/time.c
+ *
+ *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ *
+ * This file contains the m68k-specific time handling details.
+ * Most of the stuff is located in the machine specific files.
+ *
+ * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
+ *		"A Kernel Model for Precision Timekeeping" by Dave Mills
+ */
+
+#include <linux/config.h> /* CONFIG_HEARTBEAT */
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/timex.h>
+#include <linux/profile.h>
+
+#include <asm/io.h>
+#include <asm/target_time.h>
+
+#define	TICK_SIZE (tick_nsec / 1000)
+
+u64 jiffies_64;
+
+EXPORT_SYMBOL(jiffies_64);
+
+/*
+ * timer_interrupt() needs to keep up the real-time clock,
+ * as well as call the "do_timer()" routine every clocktick
+ */
+static void timer_interrupt(int irq, void *dummy, struct pt_regs * regs)
+{
+	/* may need to kick the hardware timer */
+	platform_timer_eoi();
+
+	do_timer(regs);
+#ifndef CONFIG_SMP
+	update_process_times(user_mode(regs));
+#endif
+	profile_tick(CPU_PROFILING, regs);
+}
+
+void time_init(void)
+{
+	unsigned int year, mon, day, hour, min, sec;
+
+	/* FIX by dqg : Set to zero for platforms that don't have tod */
+	/* without this time is undefined and can overflow time_t, causing  */
+	/* very stange errors */
+	year = 1980;
+	mon = day = 1;
+	hour = min = sec = 0;
+	platform_gettod (&year, &mon, &day, &hour, &min, &sec);
+
+	if ((year += 1900) < 1970)
+		year += 100;
+	xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
+	xtime.tv_nsec = 0;
+
+	platform_timer_setup(timer_interrupt);
+}
+
+/*
+ * This version of gettimeofday has near microsecond resolution.
+ */
+void do_gettimeofday(struct timeval *tv)
+{
+	unsigned long flags;
+	unsigned long usec, sec;
+
+	read_lock_irqsave(&xtime_lock, flags);
+	usec = 0;
+	sec = xtime.tv_sec;
+	usec += (xtime.tv_nsec / 1000);
+	read_unlock_irqrestore(&xtime_lock, flags);
+
+	while (usec >= 1000000) {
+		usec -= 1000000;
+		sec++;
+	}
+
+	tv->tv_sec = sec;
+	tv->tv_usec = usec;
+}
+
+EXPORT_SYMBOL(do_gettimeofday);
+
+int do_settimeofday(struct timespec *tv)
+{
+	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
+		return -EINVAL;
+
+	write_lock_irq(&xtime_lock);
+	/* This is revolting. We need to set the xtime.tv_usec
+	 * correctly. However, the value in this location is
+	 * is value at the last tick.
+	 * Discover what correction gettimeofday
+	 * would have done, and then undo it!
+	 */
+	while (tv->tv_nsec < 0) {
+		tv->tv_nsec += NSEC_PER_SEC;
+		tv->tv_sec--;
+	}
+
+	xtime.tv_sec = tv->tv_sec;
+	xtime.tv_nsec = tv->tv_nsec;
+	time_adjust = 0;		/* stop active adjtime() */
+	time_status |= STA_UNSYNC;
+	time_maxerror = NTP_PHASE_LIMIT;
+	time_esterror = NTP_PHASE_LIMIT;
+	write_sequnlock_irq(&xtime_lock);
+	clock_was_set();
+	return 0;
+}
+
+EXPORT_SYMBOL(do_settimeofday);
+
+unsigned long long sched_clock(void)
+{
+	return (unsigned long long)jiffies * (1000000000 / HZ);
+
+}

arch/h8300/kernel/traps.c

@@ -0,0 +1,169 @@
+/*
+ * linux/arch/h8300/boot/traps.c -- general exception handling code
+ * H8/300 support Yoshinori Sato <ysato@users.sourceforge.jp>
+ * 
+ * Cloned from Linux/m68k.
+ *
+ * No original Copyright holder listed,
+ * Probabily original (C) Roman Zippel (assigned DJD, 1999)
+ *
+ * Copyright 1999-2000 D. Jeff Dionne, <jeff@rt-control.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/page.h>
+#include <asm/gpio.h>
+
+/*
+ * this must be called very early as the kernel might
+ * use some instruction that are emulated on the 060
+ */
+
+void __init base_trap_init(void)
+{
+}
+
+void __init trap_init (void)
+{
+}
+
+asmlinkage void set_esp0 (unsigned long ssp)
+{
+	current->thread.esp0 = ssp;
+}
+
+/*
+ *	Generic dumping code. Used for panic and debug.
+ */
+
+static void dump(struct pt_regs *fp)
+{
+	unsigned long	*sp;
+	unsigned char	*tp;
+	int		i;
+
+	printk("\nCURRENT PROCESS:\n\n");
+	printk("COMM=%s PID=%d\n", current->comm, current->pid);
+	if (current->mm) {
+		printk("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
+			(int) current->mm->start_code,
+			(int) current->mm->end_code,
+			(int) current->mm->start_data,
+			(int) current->mm->end_data,
+			(int) current->mm->end_data,
+			(int) current->mm->brk);
+		printk("USER-STACK=%08x  KERNEL-STACK=%08lx\n\n",
+			(int) current->mm->start_stack,
+			(int) PAGE_SIZE+(unsigned long)current);
+	}
+
+	show_regs(fp);
+	printk("\nCODE:");
+	tp = ((unsigned char *) fp->pc) - 0x20;
+	for (sp = (unsigned long *) tp, i = 0; (i < 0x40);  i += 4) {
+		if ((i % 0x10) == 0)
+			printk("\n%08x: ", (int) (tp + i));
+		printk("%08x ", (int) *sp++);
+	}
+	printk("\n");
+
+	printk("\nKERNEL STACK:");
+	tp = ((unsigned char *) fp) - 0x40;
+	for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
+		if ((i % 0x10) == 0)
+			printk("\n%08x: ", (int) (tp + i));
+		printk("%08x ", (int) *sp++);
+	}
+	printk("\n");
+	if (STACK_MAGIC != *(unsigned long *)((unsigned long)current+PAGE_SIZE))
+                printk("(Possibly corrupted stack page??)\n");
+
+	printk("\n\n");
+}
+
+void die_if_kernel (char *str, struct pt_regs *fp, int nr)
+{
+	extern int console_loglevel;
+
+	if (!(fp->ccr & PS_S))
+		return;
+
+	console_loglevel = 15;
+	dump(fp);
+
+	do_exit(SIGSEGV);
+}
+
+extern char _start, _etext;
+#define check_kernel_text(addr) \
+        ((addr >= (unsigned long)(&_start)) && \
+         (addr <  (unsigned long)(&_etext))) 
+
+static int kstack_depth_to_print = 24;
+
+void show_stack(struct task_struct *task, unsigned long *esp)
+{
+	unsigned long *stack,  addr;
+	int i;
+
+	if (esp == NULL)
+		esp = (unsigned long *) &esp;
+
+	stack = esp;
+
+	printk("Stack from %08lx:", (unsigned long)stack);
+	for (i = 0; i < kstack_depth_to_print; i++) {
+		if (((unsigned long)stack & (THREAD_SIZE - 1)) == 0)
+			break;
+		if (i % 8 == 0)
+			printk("\n       ");
+		printk(" %08lx", *stack++);
+	}
+
+	printk("\nCall Trace:");
+	i = 0;
+	stack = esp;
+	while (((unsigned long)stack & (THREAD_SIZE - 1)) == 0) {
+		addr = *stack++;
+		/*
+		 * If the address is either in the text segment of the
+		 * kernel, or in the region which contains vmalloc'ed
+		 * memory, it *may* be the address of a calling
+		 * routine; if so, print it so that someone tracing
+		 * down the cause of the crash will be able to figure
+		 * out the call path that was taken.
+		 */
+		if (check_kernel_text(addr)) {
+			if (i % 4 == 0)
+				printk("\n       ");
+			printk(" [<%08lx>]", addr);
+			i++;
+		}
+	}
+	printk("\n");
+}
+
+void show_trace_task(struct task_struct *tsk)
+{
+	show_stack(tsk,(unsigned long *)tsk->thread.esp0);
+}
+
+void dump_stack(void)
+{
+	show_stack(NULL,NULL);
+}
+
+EXPORT_SYMBOL(dump_stack);

arch/h8300/kernel/vmlinux.lds.S

@@ -0,0 +1,172 @@
+#define VMLINUX_SYMBOL(_sym_) _##_sym_
+#include <asm-generic/vmlinux.lds.h>
+#include <linux/config.h>
+
+/* target memory map */
+#ifdef CONFIG_H8300H_GENERIC
+#define ROMTOP  0x000000
+#define ROMSIZE 0x400000
+#define RAMTOP  0x400000
+#define RAMSIZE 0x400000
+#endif
+
+#ifdef CONFIG_H8300H_AKI3068NET
+#define ROMTOP  0x000000
+#define ROMSIZE 0x080000
+#define RAMTOP  0x400000
+#define RAMSIZE 0x200000
+#endif
+
+#ifdef CONFIG_H8300H_H8MAX
+#define ROMTOP  0x000000
+#define ROMSIZE 0x080000
+#define RAMTOP  0x400000
+#define RAMSIZE 0x200000
+#endif
+
+#ifdef CONFIG_H8300H_SIM
+#define ROMTOP  0x000000
+#define ROMSIZE 0x400000
+#define RAMTOP  0x400000
+#define RAMSIZE 0x400000
+#endif
+
+#ifdef CONFIG_H8S_SIM
+#define ROMTOP  0x000000
+#define ROMSIZE 0x400000
+#define RAMTOP  0x400000
+#define RAMSIZE 0x800000
+#endif
+
+#ifdef CONFIG_H8S_EDOSK2674
+#define ROMTOP  0x000000
+#define ROMSIZE 0x400000
+#define RAMTOP  0x400000
+#define RAMSIZE 0x800000
+#endif
+
+#if defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)
+INPUT(romfs.o)
+#endif
+
+_jiffies = _jiffies_64 + 4;
+
+ENTRY(__start)
+
+SECTIONS
+{
+#if defined(CONFIG_ROMKERNEL)
+	. = ROMTOP; 
+	.vectors :
+	{
+	__vector = . ;
+		*(.vectors*)
+	}
+#else
+	. = RAMTOP; 
+	.bootvec :	
+	{
+		*(.bootvec)
+	}
+#endif
+        .text :
+	{
+#if defined(CONFIG_ROMKERNEL)
+	*(.int_redirect)
+#endif
+	__stext = . ;
+        	*(.text)
+	SCHED_TEXT
+	LOCK_TEXT
+	__etext = . ;
+	. = ALIGN(16);          /* Exception table              */
+	___start___ex_table = .;
+		*(__ex_table)
+	___stop___ex_table = .;
+	}
+
+	RODATA
+#if defined(CONFIG_ROMKERNEL)
+	SECURITY_INIT
+#endif
+	ROEND = .; 
+#if defined(CONFIG_ROMKERNEL)
+	. = RAMTOP;
+	.data :	AT(ROEND)
+#else
+	.data :	
+#endif
+	{
+	__sdata = . ;
+	___data_start = . ;
+
+	. = ALIGN(0x2000) ;
+		*(.data.init_task)
+	. = ALIGN(0x4) ;
+		*(.data)
+	. = ALIGN(0x4) ;
+		*(.data.*)	
+
+	. = ALIGN(0x4) ;
+	___init_begin = .;
+	__sinittext = .; 
+		*(.init.text)
+	__einittext = .; 
+		*(.init.data)
+	. = ALIGN(0x4) ;
+	___setup_start = .;
+		*(.init.setup)
+	. = ALIGN(0x4) ;
+	___setup_end = .;
+	___initcall_start = .;
+		*(.initcall1.init)
+		*(.initcall2.init)
+		*(.initcall3.init)
+		*(.initcall4.init)
+		*(.initcall5.init)
+		*(.initcall6.init)
+		*(.initcall7.init)
+	___initcall_end = .;
+	___con_initcall_start = .;
+		*(.con_initcall.init)
+	___con_initcall_end = .;
+		*(.exit.text)
+		*(.exit.data)
+		. = ALIGN(4);
+	___initramfs_start = .;
+  		*(.init.ramfs)
+  	___initramfs_end = .;
+	. = ALIGN(0x4) ;
+	___init_end = .;
+	__edata = . ;
+	}
+#if defined(CONFIG_RAMKERNEL)
+	SECURITY_INIT
+#endif
+	__begin_data = LOADADDR(.data);
+        .bss : 
+        {
+	. = ALIGN(0x4) ;
+	__sbss = . ;
+		*(.bss*)
+	. = ALIGN(0x4) ;
+		*(COMMON)
+	. = ALIGN(0x4) ;
+	__ebss = . ;
+	__end = . ;
+	__ramstart = .;
+	}
+	/DISCARD/ : {
+		*(.exitcall.exit)
+	}
+        .romfs :	
+	{
+		*(.romfs*)
+	}
+	. = RAMTOP+RAMSIZE;
+        .dummy :
+        {
+	COMMAND_START = . - 0x200 ;
+	__ramend = . ;
+	}
+}

arch/h8300/lib/Makefile

@@ -0,0 +1,8 @@
+#
+# Makefile for H8/300-specific library files..
+#
+
+.S.o:
+	$(CC) $(AFLAGS) -D__ASSEMBLY__ -c $< -o $@
+
+lib-y  = ashrdi3.o checksum.o memcpy.o memset.o abs.o romfs.o

arch/h8300/lib/abs.S

@@ -0,0 +1,21 @@
+;;; abs.S
+
+#include <asm/linkage.h>
+
+#if defined(__H8300H__) 
+	.h8300h
+#endif
+#if defined(__H8300S__) 
+	.h8300s
+#endif
+	.text
+.global SYMBOL_NAME(abs)
+
+;;; int abs(int n)
+SYMBOL_NAME_LABEL(abs)
+	mov.l	er0,er0
+	bpl	1f
+	neg.l	er0
+1:
+	rts
+	

arch/h8300/lib/ashrdi3.c

@@ -0,0 +1,63 @@
+/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define BITS_PER_UNIT 8
+
+typedef 	 int SItype	__attribute__ ((mode (SI)));
+typedef unsigned int USItype	__attribute__ ((mode (SI)));
+typedef		 int DItype	__attribute__ ((mode (DI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+struct DIstruct {SItype high, low;};
+
+typedef union
+{
+  struct DIstruct s;
+  DItype ll;
+} DIunion;
+
+DItype
+__ashrdi3 (DItype u, word_type b)
+{
+  DIunion w;
+  word_type bm;
+  DIunion uu;
+
+  if (b == 0)
+    return u;
+
+  uu.ll = u;
+
+  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
+  if (bm <= 0)
+    {
+      /* w.s.high = 1..1 or 0..0 */
+      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
+      w.s.low = uu.s.high >> -bm;
+    }
+  else
+    {
+      USItype carries = (USItype)uu.s.high << bm;
+      w.s.high = uu.s.high >> b;
+      w.s.low = ((USItype)uu.s.low >> b) | carries;
+    }
+
+  return w.ll;
+}

arch/h8300/lib/checksum.c

@@ -0,0 +1,159 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		IP/TCP/UDP checksumming routines
+ *
+ * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
+ *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
+ *		Tom May, <ftom@netcom.com>
+ *		Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
+ *		Lots of code moved from tcp.c and ip.c; see those files
+ *		for more names.
+ *
+ * 03/02/96	Jes Sorensen, Andreas Schwab, Roman Hodek:
+ *		Fixed some nasty bugs, causing some horrible crashes.
+ *		A: At some points, the sum (%0) was used as
+ *		length-counter instead of the length counter
+ *		(%1). Thanks to Roman Hodek for pointing this out.
+ *		B: GCC seems to mess up if one uses too many
+ *		data-registers to hold input values and one tries to
+ *		specify d0 and d1 as scratch registers. Letting gcc choose these
+ *      registers itself solves the problem.
+ *
+ *		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.
+ */
+ 
+/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most
+   of the assembly has to go. */
+
+#include <net/checksum.h>
+#include <linux/module.h>
+
+static inline unsigned short from32to16(unsigned long x)
+{
+	/* add up 16-bit and 16-bit for 16+c bit */
+	x = (x & 0xffff) + (x >> 16);
+	/* add up carry.. */
+	x = (x & 0xffff) + (x >> 16);
+	return x;
+}
+
+static unsigned long do_csum(const unsigned char * buff, int len)
+{
+	int odd, count;
+	unsigned long result = 0;
+
+	if (len <= 0)
+		goto out;
+	odd = 1 & (unsigned long) buff;
+	if (odd) {
+		result = *buff;
+		len--;
+		buff++;
+	}
+	count = len >> 1;		/* nr of 16-bit words.. */
+	if (count) {
+		if (2 & (unsigned long) buff) {
+			result += *(unsigned short *) buff;
+			count--;
+			len -= 2;
+			buff += 2;
+		}
+		count >>= 1;		/* nr of 32-bit words.. */
+		if (count) {
+		        unsigned long carry = 0;
+			do {
+				unsigned long w = *(unsigned long *) buff;
+				count--;
+				buff += 4;
+				result += carry;
+				result += w;
+				carry = (w > result);
+			} while (count);
+			result += carry;
+			result = (result & 0xffff) + (result >> 16);
+		}
+		if (len & 2) {
+			result += *(unsigned short *) buff;
+			buff += 2;
+		}
+	}
+	if (len & 1)
+		result += (*buff << 8);
+	result = from32to16(result);
+	if (odd)
+		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+out:
+	return result;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl)
+{
+	return ~do_csum(iph,ihl*4);
+}
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
+{
+	unsigned int result = do_csum(buff, len);
+
+	/* add in old sum, and carry.. */
+	result += sum;
+	/* 16+c bits -> 16 bits */
+	result = (result & 0xffff) + (result >> 16);
+	return result;
+}
+
+EXPORT_SYMBOL(csum_partial);
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+unsigned short ip_compute_csum(const unsigned char * buff, int len)
+{
+	return ~do_csum(buff,len);
+}
+
+/*
+ * copy from fs while checksumming, otherwise like csum_partial
+ */
+
+unsigned int
+csum_partial_copy_from_user(const char *src, char *dst, int len, int sum, int *csum_err)
+{
+	if (csum_err) *csum_err = 0;
+	memcpy(dst, src, len);
+	return csum_partial(dst, len, sum);
+}
+
+/*
+ * copy from ds while checksumming, otherwise like csum_partial
+ */
+
+unsigned int
+csum_partial_copy(const char *src, char *dst, int len, int sum)
+{
+	memcpy(dst, src, len);
+	return csum_partial(dst, len, sum);
+}

arch/h8300/lib/memcpy.S

@@ -0,0 +1,84 @@
+;;; memcpy.S
+
+#include <asm/linkage.h>
+
+#if defined(__H8300H__) 
+	.h8300h
+#endif
+#if defined(__H8300S__) 
+	.h8300s
+#endif
+
+	.text
+.global SYMBOL_NAME(memcpy)
+
+;;; void *memcpy(void *to, void *from, size_t n)
+SYMBOL_NAME_LABEL(memcpy)
+	mov.l	er2,er2
+	bne	1f
+	rts	
+1:	
+	;; address check
+	bld	#0,r0l
+	bxor	#0,r1l
+	bcs	4f
+	mov.l	er4,@-sp
+	mov.l	er0,@-sp
+	btst	#0,r0l
+	beq	1f
+	;; (aligned even) odd address
+	mov.b	@er1,r3l
+	mov.b	r3l,@er0
+	adds	#1,er1
+	adds	#1,er0
+	dec.l	#1,er2
+	beq	3f
+1:	
+	;; n < sizeof(unsigned long) check
+	sub.l	er4,er4
+	adds	#4,er4		; loop count check value
+	cmp.l	er4,er2
+	blo	2f
+	;; unsigned long copy
+1:	
+	mov.l	@er1,er3
+	mov.l	er3,@er0
+	adds	#4,er0
+	adds	#4,er1
+	subs	#4,er2
+	cmp.l	er4,er2
+	bcc	1b	
+	;; rest
+2:	
+	mov.l	er2,er2
+	beq	3f
+1:	
+	mov.b	@er1,r3l
+	mov.b	r3l,@er0
+	adds	#1,er1
+	adds	#1,er0
+	dec.l	#1,er2
+	bne	1b
+3:
+	mov.l	@sp+,er0
+	mov.l	@sp+,er4
+	rts
+
+	;; odd <- even / even <- odd
+4:	
+	mov.l	er4,er3
+	mov.l	er2,er4
+	mov.l	er5,er2
+	mov.l	er1,er5
+	mov.l	er6,er1
+	mov.l	er0,er6
+1:
+	eepmov.w
+	mov.w	r4,r4
+	bne	1b
+	dec.w	#1,e4
+	bpl	1b
+	mov.l	er1,er6
+	mov.l	er2,er5
+	mov.l	er3,er4
+	rts

arch/h8300/lib/memset.S

@@ -0,0 +1,61 @@
+/* memset.S */
+
+#include <asm/linkage.h>
+
+#if defined(__H8300H__) 
+	.h8300h
+#endif
+#if defined(__H8300S__) 
+	.h8300s
+#endif
+	.text
+
+.global	SYMBOL_NAME(memset)
+
+;;void *memset(*ptr, int c, size_t count)
+;; ptr = er0
+;; c   = er1(r1l)
+;; count = er2
+SYMBOL_NAME_LABEL(memset)
+	btst	#0,r0l
+	beq	2f
+
+	;; odd address
+1:
+	mov.b	r1l,@er0
+	adds	#1,er0
+	dec.l	#1,er2
+	beq	6f
+
+	;; even address
+2:
+	mov.l	er2,er3
+	cmp.l	#4,er2
+	blo	4f
+	;; count>=4 -> count/4
+#if defined(__H8300H__)
+	shlr.l	er2
+	shlr.l	er2
+#endif
+#if defined(__H8300S__)
+	shlr.l	#2,er2
+#endif
+	;; byte -> long
+	mov.b	r1l,r1h
+	mov.w	r1,e1
+3:
+	mov.l	er1,@er0
+	adds	#4,er0
+	dec.l	#1,er2
+	bne	3b
+4:
+	;; count % 4
+	and.b	#3,r3l
+	beq	6f
+5:
+	mov.b	r1l,@er0
+	adds	#1,er0
+	dec.b	r3l
+	bne	5b
+6:
+	rts

arch/h8300/lib/romfs.S

@@ -0,0 +1,58 @@
+/* romfs move to __ebss */
+
+#include <asm/linkage.h>
+#include <linux/config.h>
+
+#if defined(__H8300H__) 
+	.h8300h
+#endif
+#if defined(__H8300S__) 
+	.h8300s
+#endif
+
+#define BLKOFFSET 512
+
+	.text
+.globl	__move_romfs
+_romfs_sig_len = 8
+
+__move_romfs:	
+	mov.l	#__sbss,er0
+	mov.l	#_romfs_sig,er1
+	mov.b	#_romfs_sig_len,r3l
+1:					/* check romfs image */
+	mov.b	@er0+,r2l
+	mov.b	@er1+,r2h
+	cmp.b	r2l,r2h
+	bne	2f
+	dec.b	r3l
+	bne	1b
+
+	/* find romfs image */
+	mov.l	@__sbss+8,er0		/* romfs length(be) */
+	mov.l	#__sbss,er1
+	add.l	er0,er1			/* romfs image end */
+	mov.l	#__ebss,er2
+	add.l	er0,er2			/* distination address */
+#if defined(CONFIG_INTELFLASH)
+	add.l	#BLKOFFSET,er2
+#endif
+	adds	#2,er0
+	adds	#1,er0
+	shlr	er0
+	shlr	er0			/* transfer length */
+1:
+	mov.l	@er1,er3		/* copy image */
+	mov.l	er3,@er2
+	subs	#4,er1
+	subs	#4,er2
+	dec.l	#1,er0
+	bpl	1b
+2:
+	rts
+
+	.section	.rodata
+_romfs_sig:	
+	.ascii	"-rom1fs-"
+
+	.end

arch/h8300/mm/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for the linux m68k-specific parts of the memory manager.
+#
+
+obj-y	 := init.o fault.o memory.o kmap.o

arch/h8300/mm/fault.c

@@ -0,0 +1,58 @@
+/*
+ *  linux/arch/h8300/mm/fault.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
+ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com) 
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/fault.c
+ *  linux/arch/m68k/mm/fault.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+
+extern void die_if_kernel(char *, struct pt_regs *, long);
+
+/*
+ * This routine handles page faults.  It determines the problem, and
+ * then passes it off to one of the appropriate routines.
+ *
+ * error_code:
+ *	bit 0 == 0 means no page found, 1 means protection fault
+ *	bit 1 == 0 means read, 1 means write
+ *
+ * If this routine detects a bad access, it returns 1, otherwise it
+ * returns 0.
+ */
+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
+			      unsigned long error_code)
+{
+#ifdef DEBUG
+	printk ("regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n",
+		regs->sr, regs->pc, address, error_code);
+#endif
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ */
+	if ((unsigned long) address < PAGE_SIZE) {
+		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+	} else
+		printk(KERN_ALERT "Unable to handle kernel access");
+	printk(" at virtual address %08lx\n",address);
+	die_if_kernel("Oops", regs, error_code);
+	do_exit(SIGKILL);
+
+	return 1;
+}
+

arch/h8300/mm/init.c

@@ -0,0 +1,232 @@
+/*
+ *  linux/arch/h8300/mm/init.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
+ *                      Kenneth Albanowski <kjahds@kjahds.com>,
+ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com) 
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/init.c
+ *  linux/arch/m68k/mm/init.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ *
+ *  JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com)
+ *  DEC/2000 -- linux 2.4 support <davidm@snapgear.com>
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/init.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
+#include <linux/bootmem.h>
+#include <linux/slab.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+
+#undef DEBUG
+
+extern void die_if_kernel(char *,struct pt_regs *,long);
+extern void free_initmem(void);
+
+/*
+ * BAD_PAGE is the page that is used for page faults when linux
+ * is out-of-memory. Older versions of linux just did a
+ * do_exit(), but using this instead means there is less risk
+ * for a process dying in kernel mode, possibly leaving a inode
+ * unused etc..
+ *
+ * BAD_PAGETABLE is the accompanying page-table: it is initialized
+ * to point to BAD_PAGE entries.
+ *
+ * ZERO_PAGE is a special page that is used for zero-initialized
+ * data and COW.
+ */
+static unsigned long empty_bad_page_table;
+
+static unsigned long empty_bad_page;
+
+unsigned long empty_zero_page;
+
+extern unsigned long rom_length;
+
+void show_mem(void)
+{
+    unsigned long i;
+    int free = 0, total = 0, reserved = 0, shared = 0;
+    int cached = 0;
+
+    printk("\nMem-info:\n");
+    show_free_areas();
+    i = max_mapnr;
+    while (i-- > 0) {
+	total++;
+	if (PageReserved(mem_map+i))
+	    reserved++;
+	else if (PageSwapCache(mem_map+i))
+	    cached++;
+	else if (!page_count(mem_map+i))
+	    free++;
+	else
+	    shared += page_count(mem_map+i) - 1;
+    }
+    printk("%d pages of RAM\n",total);
+    printk("%d free pages\n",free);
+    printk("%d reserved pages\n",reserved);
+    printk("%d pages shared\n",shared);
+    printk("%d pages swap cached\n",cached);
+}
+
+extern unsigned long memory_start;
+extern unsigned long memory_end;
+
+/*
+ * paging_init() continues the virtual memory environment setup which
+ * was begun by the code in arch/head.S.
+ * The parameters are pointers to where to stick the starting and ending
+ * addresses of available kernel virtual memory.
+ */
+void paging_init(void)
+{
+	/*
+	 * Make sure start_mem is page aligned,  otherwise bootmem and
+	 * page_alloc get different views og the world.
+	 */
+#ifdef DEBUG
+	unsigned long start_mem = PAGE_ALIGN(memory_start);
+#endif
+	unsigned long end_mem   = memory_end & PAGE_MASK;
+
+#ifdef DEBUG
+	printk ("start_mem is %#lx\nvirtual_end is %#lx\n",
+		start_mem, end_mem);
+#endif
+
+	/*
+	 * Initialize the bad page table and bad page to point
+	 * to a couple of allocated pages.
+	 */
+	empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
+
+	/*
+	 * Set up SFC/DFC registers (user data space).
+	 */
+	set_fs (USER_DS);
+
+#ifdef DEBUG
+	printk ("before free_area_init\n");
+
+	printk ("free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
+		start_mem, end_mem);
+#endif
+
+	{
+		unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
+
+		zones_size[ZONE_DMA]     = 0 >> PAGE_SHIFT;
+		zones_size[ZONE_NORMAL]  = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
+#ifdef CONFIG_HIGHMEM
+		zones_size[ZONE_HIGHMEM] = 0;
+#endif
+		free_area_init(zones_size);
+	}
+}
+
+void mem_init(void)
+{
+	int codek = 0, datak = 0, initk = 0;
+	/* DAVIDM look at setup memory map generically with reserved area */
+	unsigned long tmp;
+	extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end;
+	extern unsigned long  _ramend, _ramstart;
+	unsigned long len = &_ramend - &_ramstart;
+	unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */
+	unsigned long end_mem   = memory_end; /* DAVIDM - this must not include kernel stack at top */
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem);
+#endif
+
+	end_mem &= PAGE_MASK;
+	high_memory = (void *) end_mem;
+
+	start_mem = PAGE_ALIGN(start_mem);
+	max_mapnr = num_physpages = MAP_NR(high_memory);
+
+	/* this will put all memory onto the freelists */
+	totalram_pages = free_all_bootmem();
+
+	codek = (&_etext - &_stext) >> 10;
+	datak = (&_ebss - &_sdata) >> 10;
+	initk = (&__init_begin - &__init_end) >> 10;
+
+	tmp = nr_free_pages() << PAGE_SHIFT;
+	printk(KERN_INFO "Memory available: %luk/%luk RAM, %luk/%luk ROM (%dk kernel code, %dk data)\n",
+	       tmp >> 10,
+	       len >> 10,
+	       (rom_length > 0) ? ((rom_length >> 10) - codek) : 0,
+	       rom_length >> 10,
+	       codek,
+	       datak
+	       );
+}
+
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+	int pages = 0;
+	for (; start < end; start += PAGE_SIZE) {
+		ClearPageReserved(virt_to_page(start));
+		set_page_count(virt_to_page(start), 1);
+		free_page(start);
+		totalram_pages++;
+		pages++;
+	}
+	printk ("Freeing initrd memory: %dk freed\n", pages);
+}
+#endif
+
+void
+free_initmem()
+{
+#ifdef CONFIG_RAMKERNEL
+	unsigned long addr;
+	extern char __init_begin, __init_end;
+/*
+ *	the following code should be cool even if these sections
+ *	are not page aligned.
+ */
+	addr = PAGE_ALIGN((unsigned long)(&__init_begin));
+	/* next to check that the page we free is not a partial page */
+	for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) {
+		ClearPageReserved(virt_to_page(addr));
+		set_page_count(virt_to_page(addr), 1);
+		free_page(addr);
+		totalram_pages++;
+	}
+	printk(KERN_INFO "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n",
+			(addr - PAGE_ALIGN((long) &__init_begin)) >> 10,
+			(int)(PAGE_ALIGN((unsigned long)(&__init_begin))),
+			(int)(addr - PAGE_SIZE));
+#endif
+}
+

arch/h8300/mm/kmap.c

@@ -0,0 +1,59 @@
+/*
+ *  linux/arch/h8300/mm/kmap.c
+ *  
+ *  Based on
+ *  linux/arch/m68knommu/mm/kmap.c
+ *
+ *  Copyright (C) 2000 Lineo, <davidm@snapgear.com>
+ *  Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#undef DEBUG
+
+/*
+ * Map some physical address range into the kernel address space.
+ */
+void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
+{
+	return (void *)physaddr;
+}
+
+/*
+ * Unmap a ioremap()ed region again.
+ */
+void iounmap(void *addr)
+{
+}
+
+/*
+ * __iounmap unmaps nearly everything, so be careful
+ * it doesn't free currently pointer/page tables anymore but it
+ * wans't used anyway and might be added later.
+ */
+void __iounmap(void *addr, unsigned long size)
+{
+}
+
+/*
+ * Set new cache mode for some kernel address space.
+ * The caller must push data for that range itself, if such data may already
+ * be in the cache.
+ */
+void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
+{
+}

arch/h8300/mm/memory.c

@@ -0,0 +1,70 @@
+/*
+ *  linux/arch/h8300/mm/memory.c
+ *
+ *  Copyright (C) 2002  Yoshinori Sato <ysato@users.sourceforge.jp>,
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/memory.c
+ *
+ *  Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,
+ *  Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68k/mm/memory.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/traps.h>
+#include <asm/io.h>
+
+void cache_clear (unsigned long paddr, int len)
+{
+}
+
+
+void cache_push (unsigned long paddr, int len)
+{
+}
+
+void cache_push_v (unsigned long vaddr, int len)
+{
+}
+
+/* Map some physical address range into the kernel address space. The
+ * code is copied and adapted from map_chunk().
+ */
+
+unsigned long kernel_map(unsigned long paddr, unsigned long size,
+			 int nocacheflag, unsigned long *memavailp )
+{
+	return paddr;
+}
+
+#ifdef MAGIC_ROM_PTR
+
+int is_in_rom(unsigned long addr)
+{
+	/* Anything not in operational RAM is returned as in rom! */
+	if (addr < _ramstart || addr >= _ramend)
+ 		return 1;
+	else
+		return 0;
+}
+
+#endif
+

arch/h8300/platform/h8300h/Makefile

@@ -0,0 +1,7 @@
+#
+# Makefile for the linux kernel.
+#
+# Reuse any files we can from the H8/300H
+#
+
+obj-y := entry.o ints_h8300h.o ptrace_h8300h.o

arch/h8300/platform/h8300h/aki3068net/Makefile

@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y := crt0_ram.o
+obj-y := timer.o

arch/h8300/platform/h8300h/aki3068net/crt0_ram.S

@@ -0,0 +1,111 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/aki3068net/crt0_ram.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	AE-3068 (aka. aki3068net)
+ *  Memory Layout     :	RAM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+	
+#if !defined(CONFIG_BLKDEV_RESERVE)
+#if defined(CONFIG_GDB_DEBUG)
+#define RAMEND (__ramend - 0xc000)
+#else
+#define RAMEND __ramend
+#endif
+#else
+#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
+#endif
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300h
+
+	.section .text
+	.file	"crt0_ram.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#RAMEND,sp
+	ldc	#0x80,ccr
+
+	/* Peripheral Setup */
+	
+#if defined(CONFIG_MTD_UCLINUX)
+	/* move romfs image */
+	jsr	@__move_romfs	
+#endif
+	
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr	er4
+	shlr	er4
+	sub.l	er0,er0
+1:	
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* uClinux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	.byte	0xff,0xff
+	;; P2DDR
+	.byte	0xff,0xff
+	;; P3DDR
+	.byte	0xff,0x00
+	;; P4DDR
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x01,0x01
+	;; P6DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x0c,0x0c
+	;; P9DDR
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x30,0x30
+
+__target_name:	
+	.asciz	"AE-3068"
+	
+	.section .bootvec,"ax"
+	jmp	@SYMBOL_NAME(_start)

arch/h8300/platform/h8300h/aki3068net/timer.c

@@ -0,0 +1,52 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/aki3068net/timer.c
+ *
+ *  Yoshinori Sato <ysato@users.sourcefoge.jp>
+ *
+ *  Platform depend Timer Handler
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/timex.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/regs306x.h>
+
+#define CMFA 6
+
+#define CMIEA 0x40
+#define CCLR_CMA 0x08
+#define CLK_DIV8192 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	/* setup 8bit timer ch2 */
+	ctrl_outb(H8300_TIMER_FREQ / HZ, TCORA2);      /* set interval */
+	ctrl_outb(0x00, _8TCSR2);                      /* no output */
+	request_irq(40, timer_int, 0, "timer", 0);
+	ctrl_outb(CMIEA|CCLR_CMA|CLK_DIV8192, _8TCR2); /* start count */
+}
+
+void platform_timer_eoi(void)
+{
+	*(volatile unsigned char *)_8TCSR2 &= ~(1 << CMFA);
+}
+
+void platform_gettod(int *year, int *mon, int *day, int *hour,
+		 int *min, int *sec)
+{
+	*year = *mon = *day = *hour = *min = *sec = 0;
+}

arch/h8300/platform/h8300h/entry.S

@@ -0,0 +1,333 @@
+/* -*- mode: asm -*-
+ *
+ *  linux/arch/h8300/platform/h8300h/entry.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *  David McCullough <davidm@snapgear.com>
+ *
+ */
+
+/*
+ *  entry.S
+ *  include exception/interrupt gateway
+ *          system call entry
+ */
+
+#include <linux/sys.h>
+#include <linux/config.h>
+#include <asm/unistd.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+
+	.h8300h
+
+/* CPU context save/restore macros. */
+	
+	.macro	SAVE_ALL
+	mov.l	er0,@-sp
+
+	stc	ccr,r0l				/* check kernel mode */
+	orc	#0x10,ccr
+	btst	#4,r0l
+	bne	5f
+
+	mov.l	sp,@SYMBOL_NAME(sw_usp)		/* user mode */
+	mov.l	@sp,er0
+	mov.l	@SYMBOL_NAME(sw_ksp),sp
+	sub.l	#(LRET-LORIG),sp		/* allocate LORIG - LRET */ 
+	mov.l	er0,@-sp
+	mov.l	er1,@-sp
+	mov.l   @SYMBOL_NAME(sw_usp),er0
+	mov.l   @(8:16,er0),er1                 /* copy the RET addr */
+	mov.l   er1,@(LRET-LER1:16,sp)
+
+	mov.w	e1,r1				/* e1 highbyte = ccr */
+	and	#0xef,r1h			/* mask mode? flag */
+	sub.w	r0,r0
+	mov.b	r1h,r0l
+	mov.w	r0,@(LCCR-LER1:16,sp)		/* copy ccr */
+	mov.l	@(LORIG-LER1:16,sp),er0
+	mov.l	er0,@(LER0-LER1:16,sp)		/* copy ER0 */
+	bra	6f
+5:
+	mov.l	@sp,er0				/* kernel mode */
+	subs	#2,sp				/* dummy ccr */
+	mov.l	er0,@-sp
+	mov.l	er1,@-sp
+	mov.w	@(LRET-LER1:16,sp),r1		/* copy old ccr */
+	mov.b	r1h,r1l
+	mov.b	#0,r1h
+	mov.w	r1,@(LCCR-LER1:16,sp)		/* set ccr */
+6:
+	mov.l	er2,@-sp
+	mov.l	er3,@-sp
+	mov.l	er6,@-sp			/* syscall arg #6 */
+	mov.l	er5,@-sp			/* syscall arg #5 */
+	mov.l	er4,@-sp			/* syscall arg #4 */
+	.endm
+
+	.macro	RESTORE_ALL
+	mov.l	@sp+,er4
+	mov.l	@sp+,er5
+	mov.l	@sp+,er6
+	mov.l	@sp+,er3
+	mov.l	@sp+,er2
+	mov.w	@(LCCR-LER1:16,sp),r0		/* check kernel mode */
+	btst	#4,r0l
+	bne	7f
+
+	orc	#0x80,ccr
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@(LER0-LER1:16,sp),er1		/* restore ER0 */
+	mov.l	er1,@er0
+	mov.w	@(LCCR-LER1:16,sp),r1		/* restore the RET addr */
+	mov.b	r1l,r1h
+	mov.b	@(LRET+1-LER1:16,sp),r1l
+	mov.w	r1,e1
+	mov.w	@(LRET+2-LER1:16,sp),r1
+	mov.l	er1,@(8:16,er0)
+
+	mov.l	@sp+,er1
+	add.l	#(LRET-LER1),sp			/* remove LORIG - LRET */ 
+	mov.l	sp,@SYMBOL_NAME(sw_ksp)
+	mov.l	er0,sp
+	bra	8f
+7:
+	mov.l	@sp+,er1
+	adds	#4,sp
+	adds	#2,sp
+8:
+	mov.l	@sp+,er0
+	adds	#4,sp				/* remove the sw created LVEC */
+	rte
+	.endm
+	
+.globl SYMBOL_NAME(system_call)
+.globl SYMBOL_NAME(ret_from_exception)
+.globl SYMBOL_NAME(ret_from_fork)
+.globl SYMBOL_NAME(ret_from_interrupt)
+.globl SYMBOL_NAME(interrupt_redirect_table)
+.globl SYMBOL_NAME(sw_ksp),SYMBOL_NAME(sw_usp)
+.globl SYMBOL_NAME(resume)
+.globl SYMBOL_NAME(interrupt_redirect_table)
+.globl SYMBOL_NAME(interrupt_entry)
+.globl SYMBOL_NAME(system_call)
+.globl SYMBOL_NAME(trace_break)
+
+#if defined(CONFIG_ROMKERNEL)
+INTERRUPTS = 64		
+	.section .int_redirect,"ax"
+SYMBOL_NAME_LABEL(interrupt_redirect_table)
+	.rept	7
+	.long	0
+	.endr
+	jsr	@SYMBOL_NAME(interrupt_entry)	/* NMI */
+	jmp	@SYMBOL_NAME(system_call)	/* TRAPA #0 (System call) */
+	.long	0
+	.long	0
+	jmp	@SYMBOL_NAME(trace_break)	/* TRAPA #3 (breakpoint) */
+	.rept	INTERRUPTS-12
+	jsr	@SYMBOL_NAME(interrupt_entry)
+	.endr
+#endif
+#if defined(CONFIG_RAMKERNEL)
+.globl SYMBOL_NAME(interrupt_redirect_table)
+	.section .bss
+SYMBOL_NAME_LABEL(interrupt_redirect_table)
+	.space	4
+#endif
+
+	.section .text
+	.align	2
+SYMBOL_NAME_LABEL(interrupt_entry)
+	SAVE_ALL
+	mov.w	@(LCCR,sp),r0
+	btst	#4,r0l
+	bne	1f
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@(4:16,er0),er0
+	bra	2f
+1:
+	mov.l	@(LVEC,sp),er0
+2:
+#if defined(CONFIG_ROMKERNEL)
+	sub.l	#SYMBOL_NAME(interrupt_redirect_table),er0
+#endif
+#if defined(CONFIG_RAMKERNEL)
+	mov.l	@SYMBOL_NAME(interrupt_redirect_table),er1
+	sub.l	er1,er0
+#endif
+	shlr.l	er0
+	shlr.l	er0
+	dec.l	#1,er0
+	mov.l	sp,er1
+	subs	#4,er1				/* adjust ret_pc */
+	jsr	@SYMBOL_NAME(process_int)
+	mov.l	@SYMBOL_NAME(irq_stat)+CPUSTAT_SOFTIRQ_PENDING,er0
+	beq	1f
+	jsr	@SYMBOL_NAME(do_softirq)
+1:
+	jmp	@SYMBOL_NAME(ret_from_interrupt)
+	
+SYMBOL_NAME_LABEL(system_call)
+	subs	#4,sp				/* dummy LVEC */
+	SAVE_ALL
+	mov.w	@(LCCR:16,sp),r1
+	bset	#4,r1l
+	ldc	r1l,ccr
+	mov.l	er0,er4
+	mov.l	#-ENOSYS,er0
+	mov.l	er0,@(LER0:16,sp)
+
+	/* save top of frame */
+	mov.l	sp,er0
+	jsr	@SYMBOL_NAME(set_esp0)
+	cmp.l	#NR_syscalls,er4
+	bcc	SYMBOL_NAME(ret_from_exception):16
+	shll.l	er4
+	shll.l	er4
+	mov.l	#SYMBOL_NAME(sys_call_table),er0
+	add.l	er4,er0
+	mov.l	@er0,er4
+	beq	SYMBOL_NAME(ret_from_exception):16	
+	mov.l	sp,er2
+	and.w	#0xe000,r2
+	mov.b	@((TASK_FLAGS+3-(TIF_SYSCALL_TRACE >> 3)):16,er2),r2l
+	btst	#(TIF_SYSCALL_TRACE & 7),r2l
+	bne	1f
+	mov.l	@(LER1:16,sp),er0
+	mov.l	@(LER2:16,sp),er1
+	mov.l	@(LER3:16,sp),er2
+	jsr	@er4
+	mov.l	er0,@(LER0:16,sp)		/* save the return value */
+#if defined(CONFIG_SYSCALL_PRINT)
+	jsr	@SYMBOL_NAME(syscall_print)
+#endif
+	bra	SYMBOL_NAME(ret_from_exception):8
+1:
+	jsr	SYMBOL_NAME(syscall_trace)
+	mov.l	@(LER1:16,sp),er0
+	mov.l	@(LER2:16,sp),er1
+	mov.l	@(LER3:16,sp),er2
+	jsr	@er4
+	mov.l	er0,@(LER0:16,sp)		/* save the return value */
+	jsr	@SYMBOL_NAME(syscall_trace)
+	bra	SYMBOL_NAME(ret_from_exception):8
+
+SYMBOL_NAME_LABEL(ret_from_fork)
+	mov.l	er2,er0
+	jsr	@SYMBOL_NAME(schedule_tail)
+	bra	SYMBOL_NAME(ret_from_exception):8
+
+SYMBOL_NAME_LABEL(reschedule)
+	/* save top of frame */
+	mov.l	sp,er0
+	jsr	@SYMBOL_NAME(set_esp0)
+	jsr	@SYMBOL_NAME(schedule)
+
+SYMBOL_NAME_LABEL(ret_from_exception)
+#if defined(CONFIG_PREEMPT)
+	orc	#0x80,ccr
+#endif
+SYMBOL_NAME_LABEL(ret_from_interrupt)
+	mov.b	@(LCCR+1:16,sp),r0l
+	btst	#4,r0l			/* check if returning to kernel */
+	bne	done:8			/* if so, skip resched, signals */
+	andc	#0x7f,ccr
+	mov.l	sp,er4
+	and.w	#0xe000,r4
+	mov.l	@(TI_FLAGS:16,er4),er1
+	and.l	#_TIF_WORK_MASK,er1
+	beq	done:8
+1:
+	mov.l	@(TI_FLAGS:16,er4),er1
+	btst	#TIF_NEED_RESCHED,r1l
+	bne	SYMBOL_NAME(reschedule):16
+	mov.l	sp,er0
+	subs	#4,er0			/* adjust retpc */
+	mov.l	er2,er1
+	jsr	@SYMBOL_NAME(do_signal)
+#if defined(CONFIG_PREEMPT)
+	bra	done:8			/* userspace thoru */
+3:
+	btst	#4,r0l
+	beq	done:8			/* userspace thoru */
+4:
+	mov.l	@(TI_PRE_COUNT:16,er4),er1
+	bne	done:8
+	mov.l	@(TI_FLAGS:16,er4),er1
+	btst	#TIF_NEED_RESCHED,r1l
+	beq	done:8
+	mov.b	r0l,r0l
+	bpl	done:8			/* interrupt off (exception path?) */
+	mov.l	#PREEMPT_ACTIVE,er1
+	mov.l	er1,@(TI_PRE_COUNT:16,er4)
+	andc	#0x7f,ccr
+	jsr	@SYMBOL_NAME(schedule)
+	sub.l	er1,er1
+	mov.l	er1,@(TI_PRE_COUNT:16,er4)
+	orc	#0x80,ccr
+	bra	4b:8
+#endif
+done:
+	RESTORE_ALL			/* Does RTE */
+
+SYMBOL_NAME_LABEL(resume)
+	/*
+	 * Beware - when entering resume, offset of tss is in d1,
+	 * prev (the current task) is in a0, next (the new task)
+	 * is in a1 and d2.b is non-zero if the mm structure is
+	 * shared between the tasks, so don't change these
+	 * registers until their contents are no longer needed.
+	 */
+
+	/* save sr */
+	sub.w	r3,r3
+	stc	ccr,r3l
+	mov.w	r3,@(THREAD_CCR+2:16,er0)
+
+	/* disable interrupts */
+	orc	#0x80,ccr
+	mov.l	@SYMBOL_NAME(sw_usp),er3
+	mov.l	er3,@(THREAD_USP:16,er0)
+	mov.l	sp,@(THREAD_KSP:16,er0)
+
+	/* Skip address space switching if they are the same. */
+	/* FIXME: what did we hack out of here, this does nothing! */
+
+	mov.l	@(THREAD_USP:16,er1),er0
+	mov.l	er0,@SYMBOL_NAME(sw_usp)
+	mov.l	@(THREAD_KSP:16,er1),sp
+			
+	/* restore status register */
+	mov.w	@(THREAD_CCR+2:16,er1),r3
+
+	ldc	r3l,ccr
+	rts
+	
+SYMBOL_NAME_LABEL(trace_break)
+	subs	#4,sp
+	SAVE_ALL
+	sub.l	er1,er1
+	dec.l	#1,er1
+	mov.l	er1,@(LORIG,sp)	
+	mov.l	sp,er0
+	jsr	@SYMBOL_NAME(set_esp0)
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@er0,er1
+	subs	#2,er1
+	mov.l	er1,@er0	
+	and.w	#0xff,e1
+	mov.l	er1,er0
+	jsr	@SYMBOL_NAME(trace_trap)
+	jmp	@SYMBOL_NAME(ret_from_exception)	
+
+	.section	.bss
+SYMBOL_NAME_LABEL(sw_ksp)
+	.space	4	
+SYMBOL_NAME_LABEL(sw_usp)
+	.space	4	

arch/h8300/platform/h8300h/generic/Makefile

@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+obj-y := timer.o
+extra-y =  crt0_$(MODEL).o

arch/h8300/platform/h8300h/generic/crt0_ram.S

@@ -0,0 +1,108 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/generic/crt0_ram.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	AE-3068 (aka. aki3068net)
+ *  Memory Layout     :	RAM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+	
+#if !defined(CONFIG_BLKDEV_RESERVE)
+#if defined(CONFIG_GDB_DEBUG)
+#define RAMEND (__ramend - 0xc000)
+#else
+#define RAMEND __ramend
+#endif
+#else
+#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
+#endif
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300h
+
+	.section .text
+	.file	"crt0_ram.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#RAMEND,sp
+	ldc	#0x80,ccr
+
+	/* Peripheral Setup */
+	
+#if defined(CONFIG_BLK_DEV_BLKMEM)
+	/* move romfs image */
+	jsr	@__move_romfs	
+#endif
+	
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr	er4
+	shlr	er4
+	sub.l	er0,er0
+1:	
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* uClinux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	.byte	0x00,0x00
+	;; P2DDR
+	.byte	0x00,0x00
+	;; P3DDR
+	.byte	0x00,0x00
+	;; P4DDR
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x00,0x00
+	;; P6DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x00,0x00
+	;; P9DDR
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x00,0x00
+
+__target_name:	
+	.asciz	"generic"

arch/h8300/platform/h8300h/generic/crt0_rom.S

@@ -0,0 +1,123 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/generic/crt0_rom.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	generic
+ *  Memory Layout     :	ROM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(_command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300h
+	.section .text
+	.file	"crt0_rom.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#__ramend,sp
+	ldc	#0x80,ccr
+
+	/* Peripheral Setup */
+	
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr	er4
+	shlr	er4
+	sub.l	er0,er0
+1:	
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy .data */
+#if !defined(CONFIG_H8300H_SIM)
+	/* copy .data */
+	mov.l	#__begin_data,er5
+	mov.l	#__sdata,er6
+	mov.l	#__edata,er4
+	sub.l	er6,er4
+	shlr.l	er4
+	shlr.l	er4
+1:	
+	mov.l	@er5+,er0
+	mov.l	er0,@er6
+	adds	#4,er6
+	dec.l	#1,er4
+	bne	1b	
+#endif
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(_command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* linux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	.byte	0x00,0x00
+	;; P2DDR
+	.byte	0x00,0x00
+	;; P3DDR
+	.byte	0x00,0x00
+	;; P4DDR
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x00,0x00
+	;; P6DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x00,0x00
+	;; P9DDR
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x00,0x00
+
+	.section .rodata
+__target_name:	
+	.asciz	"generic"
+	
+	.section .bss
+__command_line:	
+	.space	512
+
+	/* interrupt vector */
+	.section .vectors,"ax"
+	.long	__start
+vector	=	1
+	.rept	64-1
+	.long	_interrupt_redirect_table+vector*4
+vector	=	vector + 1
+	.endr

arch/h8300/platform/h8300h/generic/timer.c

@@ -0,0 +1,96 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/generic/timer.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend Timer Handler
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <linux/timex.h>
+
+#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
+#include <asm/regs306x.h>
+#define CMFA 6
+
+#define CMIEA 0x40
+#define CCLR_CMA 0x08
+#define CLK_DIV8192 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	/* setup 8bit timer ch2 */
+	ctrl_outb(H8300_TIMER_FREQ / HZ, TCORA2);      /* set interval */
+	ctrl_outb(0x00, _8TCSR2);                      /* no output */
+	request_irq(40, timer_int, 0, "timer", 0);
+	ctrl_outb(CMIEA|CCLR_CMA|CLK_DIV8192, _8TCR2); /* start count */
+}
+
+void platform_timer_eoi(void)
+{
+	*(volatile unsigned char *)_8TCSR2 &= ~(1 << CMFA);
+}
+#endif
+
+#if defined(CONFIG_H83002) || defined(CONFIG_H83048)
+/* FIXME! */
+#define TSTR 0x00ffff60
+#define TSNC 0x00ffff61
+#define TMDR 0x00ffff62
+#define TFCR 0x00ffff63
+#define TOER 0x00ffff90
+#define TOCR 0x00ffff91
+/* ITU0 */
+#define TCR  0x00ffff64
+#define TIOR 0x00ffff65
+#define TIER 0x00ffff66
+#define TSR  0x00ffff67
+#define TCNT 0x00ffff68
+#define GRA  0x00ffff6a
+#define GRB  0x00ffff6c
+
+#define CCLR_CMGRA 0x20
+#define CLK_DIV8 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	*(unsigned short *)GRA= H8300_TIMER_FREQ / HZ;  /* set interval */
+	*(unsigned short *)TCNT=0;                      /* clear counter */
+	ctrl_outb(0x80|CCLR_CMGRA|CLK_DIV8, TCR);       /* set ITU0 clock */
+	ctrl_outb(0x88, TIOR);                          /* no output */
+	request_irq(26, timer_int, 0, "timer", 0);
+	ctrl_outb(0xf9, TIER);                          /* compare match GRA interrupt */
+	ctrl_outb(ctrl_inb(TSNC) & ~0x01, TSNC);        /* ITU0 async */
+	ctrl_outb(ctrl_inb(TMDR) & ~0x01, TMDR);        /* ITU0 normal mode */
+	ctrl_outb(ctrl_inb(TSTR) | 0x01, TSTR);         /* ITU0 Start */
+	return 0;
+}
+
+void platform_timer_eoi(void)
+{
+	ctrl_outb(ctrl_inb(TSR) & ~0x01,TSR);
+}
+#endif
+
+void platform_gettod(int *year, int *mon, int *day, int *hour,
+		 int *min, int *sec)
+{
+	*year = *mon = *day = *hour = *min = *sec = 0;
+}

arch/h8300/platform/h8300h/h8max/Makefile

@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y := crt0_ram.o
+obj-y := timer.o

arch/h8300/platform/h8300h/h8max/crt0_ram.S

@@ -0,0 +1,111 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/h8max/crt0_ram.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	H8MAX
+ *  Memory Layout     :	RAM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+	
+#if !defined(CONFIG_BLKDEV_RESERVE)
+#if defined(CONFIG_GDB_DEBUG)
+#define RAMEND (__ramend - 0xc000)
+#else
+#define RAMEND __ramend
+#endif
+#else
+#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
+#endif
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300h
+
+	.section .text
+	.file	"crt0_ram.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#RAMEND,sp
+	ldc	#0x80,ccr
+
+	/* Peripheral Setup */
+	
+#if defined(CONFIG_MTD_UCLINUX)
+	/* move romfs image */
+	jsr	@__move_romfs	
+#endif
+	
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr	er4
+	shlr	er4
+	sub.l	er0,er0
+1:	
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* uClinux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	.byte	0xff,0xff
+	;; P2DDR
+	.byte	0xff,0xff
+	;; P3DDR
+	.byte	0x00,0x00
+	;; P4DDR
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x01,0x01
+	;; P6DDR
+	.byte	0xf6,0xf6
+	;; dummy
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0xee,0xee
+	;; P9DDR
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x30,0x30
+
+__target_name:	
+	.asciz	"H8MAX"
+	
+	.section .bootvec,"ax"
+	jmp	@SYMBOL_NAME(_start)

arch/h8300/platform/h8300h/h8max/timer.c

@@ -0,0 +1,53 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/h8max/timer.c
+ *
+ *  Yoshinori Sato <ysato@users.sourcefoge.jp>
+ *
+ *  Platform depend Timer Handler
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/timex.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/regs306x.h>
+
+#define CMFA 6
+
+#define CMIEA 0x40
+#define CCLR_CMA 0x08
+#define CLK_DIV8192 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	/* setup 8bit timer ch2 */
+	ctrl_outb(H8300_TIMER_FREQ / HZ, TCORA2);      /* set interval */
+	ctrl_outb(0x00, _8TCSR2);                      /* no output */
+	request_irq(40, timer_int, 0, "timer", 0);
+	ctrl_outb(CMIEA|CCLR_CMA|CLK_DIV8192, _8TCR2); /* start count */
+}
+
+void platform_timer_eoi(void)
+{
+	*(volatile unsigned char *)_8TCSR2 &= ~(1 << CMFA);
+}
+
+void platform_gettod(int *year, int *mon, int *day, int *hour,
+		 int *min, int *sec)
+{
+	*year = *mon = *day = *hour = *min = *sec = 0;
+}
+

arch/h8300/platform/h8300h/ints_h8300h.c

@@ -0,0 +1,86 @@
+/*
+ * linux/arch/h8300/platform/h8300h/ints_h8300h.c
+ * Interrupt handling CPU variants
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <asm/ptrace.h>
+#include <asm/traps.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/regs306x.h>
+
+/* saved vector list */
+const int __initdata h8300_saved_vectors[]={
+#if defined(CONFIG_GDB_DEBUG)
+	TRAP3_VEC,
+#endif
+	-1
+};
+
+/* trap entry table */
+const unsigned long __initdata h8300_trap_table[NR_TRAPS]={
+	0,0,0,0,0,0,0,0,
+	(unsigned long)system_call,  /* TRAPA #0 */
+	0,0,
+	(unsigned long)trace_break,  /* TRAPA #3 */
+};
+
+int h8300_enable_irq_pin(unsigned int irq)
+{
+	int bitmask;
+	if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
+		return 0;
+
+	/* initialize IRQ pin */
+	bitmask = 1 << (irq - EXT_IRQ0);
+	switch(irq) {
+	case EXT_IRQ0:
+	case EXT_IRQ1:
+	case EXT_IRQ2:
+	case EXT_IRQ3:
+		if (H8300_GPIO_RESERVE(H8300_GPIO_P8, bitmask) == 0)
+			return -EBUSY;
+		H8300_GPIO_DDR(H8300_GPIO_P8, bitmask, H8300_GPIO_INPUT);
+		break;
+	case EXT_IRQ4:
+	case EXT_IRQ5:
+		if (H8300_GPIO_RESERVE(H8300_GPIO_P9, bitmask) == 0)
+			return -EBUSY;
+		H8300_GPIO_DDR(H8300_GPIO_P9, bitmask, H8300_GPIO_INPUT);
+		break;
+	}
+
+	return 0;
+}
+
+void h8300_disable_irq_pin(unsigned int irq)
+{
+	int bitmask;
+	if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
+		return;
+
+	/* disable interrupt & release IRQ pin */
+	bitmask = 1 << (irq - EXT_IRQ0);
+	switch(irq) {
+	case EXT_IRQ0:
+	case EXT_IRQ1:
+	case EXT_IRQ2:
+	case EXT_IRQ3:
+		*(volatile unsigned char *)IER &= ~bitmask;
+		H8300_GPIO_FREE(H8300_GPIO_P8, bitmask);
+		break ;
+	case EXT_IRQ4:
+	case EXT_IRQ5:
+		*(volatile unsigned char *)IER &= ~bitmask;
+		H8300_GPIO_FREE(H8300_GPIO_P9, bitmask);
+		break;
+	}
+}

arch/h8300/platform/h8300h/ptrace_h8300h.c

@@ -0,0 +1,284 @@
+/*
+ *  linux/arch/h8300/platform/h8300h/ptrace_h8300h.c
+ *    ptrace cpu depend helper functions
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <asm/ptrace.h>
+
+#define CCR_MASK 0x6f    /* mode/imask not set */
+#define BREAKINST 0x5730 /* trapa #3 */
+
+/* Mapping from PT_xxx to the stack offset at which the register is
+   saved.  Notice that usp has no stack-slot and needs to be treated
+   specially (see get_reg/put_reg below). */
+static const int h8300_register_offset[] = {
+	PT_REG(er1), PT_REG(er2), PT_REG(er3), PT_REG(er4),
+	PT_REG(er5), PT_REG(er6), PT_REG(er0), PT_REG(orig_er0),
+	PT_REG(ccr), PT_REG(pc)
+};
+
+/* read register */
+long h8300_get_reg(struct task_struct *task, int regno)
+{
+	switch (regno) {
+	case PT_USP:
+		return task->thread.usp + sizeof(long)*2;
+	case PT_CCR:
+	    return *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
+	default:
+	    return *(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]);
+	}
+}
+
+/* write register */
+int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
+{
+	unsigned short oldccr;
+	switch (regno) {
+	case PT_USP:
+		task->thread.usp = data - sizeof(long)*2;
+	case PT_CCR:
+		oldccr = *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
+		oldccr &= ~CCR_MASK;
+		data &= CCR_MASK;
+		data |= oldccr;
+		*(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
+		break;
+	default:
+		*(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
+		break;
+	}
+	return 0;
+}
+
+/* disable singlestep */
+void h8300_disable_trace(struct task_struct *child)
+{
+	if((long)child->thread.breakinfo.addr != -1L) {
+		*child->thread.breakinfo.addr = child->thread.breakinfo.inst;
+		child->thread.breakinfo.addr = (unsigned short *)-1L;
+	}
+}
+
+/* calculate next pc */
+enum jump_type {none,    /* normal instruction */
+		jabs,    /* absolute address jump */
+		ind,     /* indirect address jump */
+		ret,     /* return to subrutine */
+		reg,     /* register indexed jump */
+		relb,    /* pc relative jump (byte offset) */
+		relw,    /* pc relative jump (word offset) */
+               };
+
+/* opcode decode table define
+   ptn: opcode pattern
+   msk: opcode bitmask
+   len: instruction length (<0 next table index)
+   jmp: jump operation mode */
+struct optable {
+	unsigned char bitpattern;
+	unsigned char bitmask;
+	signed char length;
+	signed char type;
+} __attribute__((aligned(1),packed));
+
+#define OPTABLE(ptn,msk,len,jmp)   \
+        {                          \
+		.bitpattern = ptn, \
+		.bitmask    = msk, \
+		.length	    = len, \
+		.type       = jmp, \
+	}
+
+const static struct optable optable_0[] = {
+	OPTABLE(0x00,0xff, 1,none), /* 0x00 */
+	OPTABLE(0x01,0xff,-1,none), /* 0x01 */
+	OPTABLE(0x02,0xfe, 1,none), /* 0x02-0x03 */
+	OPTABLE(0x04,0xee, 1,none), /* 0x04-0x05/0x14-0x15 */
+	OPTABLE(0x06,0xfe, 1,none), /* 0x06-0x07 */
+	OPTABLE(0x08,0xea, 1,none), /* 0x08-0x09/0x0c-0x0d/0x18-0x19/0x1c-0x1d */
+	OPTABLE(0x0a,0xee, 1,none), /* 0x0a-0x0b/0x1a-0x1b */
+	OPTABLE(0x0e,0xee, 1,none), /* 0x0e-0x0f/0x1e-0x1f */
+	OPTABLE(0x10,0xfc, 1,none), /* 0x10-0x13 */
+	OPTABLE(0x16,0xfe, 1,none), /* 0x16-0x17 */
+	OPTABLE(0x20,0xe0, 1,none), /* 0x20-0x3f */
+	OPTABLE(0x40,0xf0, 1,relb), /* 0x40-0x4f */
+	OPTABLE(0x50,0xfc, 1,none), /* 0x50-0x53 */
+	OPTABLE(0x54,0xfd, 1,ret ), /* 0x54/0x56 */
+	OPTABLE(0x55,0xff, 1,relb), /* 0x55 */
+	OPTABLE(0x57,0xff, 1,none), /* 0x57 */
+	OPTABLE(0x58,0xfb, 2,relw), /* 0x58/0x5c */
+	OPTABLE(0x59,0xfb, 1,reg ), /* 0x59/0x5b */
+	OPTABLE(0x5a,0xfb, 2,jabs), /* 0x5a/0x5e */
+	OPTABLE(0x5b,0xfb, 2,ind ), /* 0x5b/0x5f */
+	OPTABLE(0x60,0xe8, 1,none), /* 0x60-0x67/0x70-0x77 */
+	OPTABLE(0x68,0xfa, 1,none), /* 0x68-0x69/0x6c-0x6d */
+	OPTABLE(0x6a,0xfe,-2,none), /* 0x6a-0x6b */
+	OPTABLE(0x6e,0xfe, 2,none), /* 0x6e-0x6f */
+	OPTABLE(0x78,0xff, 4,none), /* 0x78 */
+	OPTABLE(0x79,0xff, 2,none), /* 0x79 */
+	OPTABLE(0x7a,0xff, 3,none), /* 0x7a */
+	OPTABLE(0x7b,0xff, 2,none), /* 0x7b */
+	OPTABLE(0x7c,0xfc, 2,none), /* 0x7c-0x7f */
+	OPTABLE(0x80,0x80, 1,none), /* 0x80-0xff */
+};
+
+const static struct optable optable_1[] = {
+	OPTABLE(0x00,0xff,-3,none), /* 0x0100 */
+	OPTABLE(0x40,0xf0,-3,none), /* 0x0140-0x14f */
+	OPTABLE(0x80,0xf0, 1,none), /* 0x0180-0x018f */
+	OPTABLE(0xc0,0xc0, 2,none), /* 0x01c0-0x01ff */
+};
+
+const static struct optable optable_2[] = {
+	OPTABLE(0x00,0x20, 2,none), /* 0x6a0?/0x6a8?/0x6b0?/0x6b8? */
+	OPTABLE(0x20,0x20, 3,none), /* 0x6a2?/0x6aa?/0x6b2?/0x6ba? */
+};
+
+const static struct optable optable_3[] = {
+	OPTABLE(0x69,0xfb, 2,none), /* 0x010069/0x01006d/014069/0x01406d */
+	OPTABLE(0x6b,0xff,-4,none), /* 0x01006b/0x01406b */
+	OPTABLE(0x6f,0xff, 3,none), /* 0x01006f/0x01406f */
+	OPTABLE(0x78,0xff, 5,none), /* 0x010078/0x014078 */
+};
+
+const static struct optable optable_4[] = {
+	OPTABLE(0x00,0x78, 3,none), /* 0x0100690?/0x01006d0?/0140690/0x01406d0?/0x0100698?/0x01006d8?/0140698?/0x01406d8? */
+	OPTABLE(0x20,0x78, 4,none), /* 0x0100692?/0x01006d2?/0140692/0x01406d2?/0x010069a?/0x01006da?/014069a?/0x01406da? */
+};
+
+const static struct optables_list {
+	const struct optable *ptr;
+	int size;
+} optables[] = {
+#define OPTABLES(no)                                                   \
+        {                                                              \
+		.ptr  = optable_##no,                                  \
+		.size = sizeof(optable_##no) / sizeof(struct optable), \
+	}
+	OPTABLES(0),
+	OPTABLES(1),
+	OPTABLES(2),
+	OPTABLES(3),
+	OPTABLES(4),
+
+};
+
+const unsigned char condmask[] = {
+	0x00,0x40,0x01,0x04,0x02,0x08,0x10,0x20
+};
+
+static int isbranch(struct task_struct *task,int reson)
+{
+	unsigned char cond = h8300_get_reg(task, PT_CCR);
+	/* encode complex conditions */
+	/* B4: N^V
+	   B5: Z|(N^V)
+	   B6: C|Z */
+	__asm__("bld #3,%w0\n\t"
+		"bxor #1,%w0\n\t"
+		"bst #4,%w0\n\t"
+		"bor #2,%w0\n\t"
+		"bst #5,%w0\n\t"
+		"bld #2,%w0\n\t"
+		"bor #0,%w0\n\t"
+		"bst #6,%w0\n\t"
+		:"=&r"(cond)::"cc");
+	cond &= condmask[reson >> 1];
+	if (!(reson & 1))
+		return cond == 0;
+	else
+		return cond != 0;
+}
+
+static unsigned short *getnextpc(struct task_struct *child, unsigned short *pc)
+{
+	const struct optable *op;
+	unsigned char *fetch_p;
+	unsigned char inst;
+	unsigned long addr;
+	unsigned long *sp;
+	int op_len,regno;
+	op = optables[0].ptr;
+	op_len = optables[0].size;
+	fetch_p = (unsigned char *)pc;
+	inst = *fetch_p++;
+	do {
+		if ((inst & op->bitmask) == op->bitpattern) {
+			if (op->length < 0) {
+				op = optables[-op->length].ptr;
+				op_len = optables[-op->length].size + 1;
+				inst = *fetch_p++;
+			} else {
+				switch (op->type) {
+				case none:
+					return pc + op->length;
+				case jabs:
+					addr = *(unsigned long *)pc;
+					return (unsigned short *)(addr & 0x00ffffff);
+				case ind:
+					addr = *pc & 0xff;
+					return (unsigned short *)(*(unsigned long *)addr);
+				case ret:
+					sp = (unsigned long *)h8300_get_reg(child, PT_USP);
+					/* user stack frames
+					   |   er0  | temporary saved
+					   +--------+
+					   |   exp  | exception stack frames
+					   +--------+
+					   | ret pc | userspace return address
+					*/
+					return (unsigned short *)(*(sp+2) & 0x00ffffff);
+				case reg:
+					regno = (*pc >> 4) & 0x07;
+					if (regno == 0)
+						addr = h8300_get_reg(child, PT_ER0);
+					else
+						addr = h8300_get_reg(child, regno-1+PT_ER1);
+					return (unsigned short *)addr;
+				case relb:
+					if ((inst = 0x55) || isbranch(child,inst & 0x0f))
+						pc = (unsigned short *)((unsigned long)pc +
+								       ((signed char)(*fetch_p)));
+					return pc+1; /* skip myself */
+				case relw:
+					if ((inst = 0x5c) || isbranch(child,(*fetch_p & 0xf0) >> 4))
+						pc = (unsigned short *)((unsigned long)pc +
+								       ((signed short)(*(pc+1))));
+					return pc+2; /* skip myself */
+				}
+			}
+		} else
+			op++;
+	} while(--op_len > 0);
+	return NULL;
+}
+
+/* Set breakpoint(s) to simulate a single step from the current PC.  */
+
+void h8300_enable_trace(struct task_struct *child)
+{
+	unsigned short *nextpc;
+	nextpc = getnextpc(child,(unsigned short *)h8300_get_reg(child, PT_PC));
+	child->thread.breakinfo.addr = nextpc;
+	child->thread.breakinfo.inst = *nextpc;
+	*nextpc = BREAKINST;
+}
+
+asmlinkage void trace_trap(unsigned long bp)
+{
+	if ((unsigned long)current->thread.breakinfo.addr == bp) {
+		h8300_disable_trace(current);
+		force_sig(SIGTRAP,current);
+	} else
+	        force_sig(SIGILL,current);
+}
+

arch/h8300/platform/h8s/Makefile

@@ -0,0 +1,7 @@
+#
+# Makefile for the linux kernel.
+#
+# Reuse any files we can from the H8S
+#
+
+obj-y := entry.o ints_h8s.o ptrace_h8s.o

arch/h8300/platform/h8s/edosk2674/Makefile

@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y := crt0_$(MODEL).o
+obj-y := timer.o

arch/h8300/platform/h8s/edosk2674/crt0_ram.S

@@ -0,0 +1,131 @@
+/*
+ *  linux/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	EDOSK-2674
+ *  Memory Layout     :	RAM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+#include <asm/regs267x.h>
+			
+#if !defined(CONFIG_BLKDEV_RESERVE)
+#if defined(CONFIG_GDB_DEBUG)
+#define RAMEND (__ramend - 0xc000)
+#else
+#define RAMEND __ramend
+#endif
+#else
+#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
+#endif
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(_command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300s
+
+	.section .text
+	.file	"crt0_ram.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#RAMEND,sp
+	ldc	#0x80,ccr
+	ldc	#0x00,exr
+
+	/* Peripheral Setup */
+	bclr	#4,@INTCR:8	/* interrupt mode 2 */
+	bset	#5,@INTCR:8
+	bclr	#0,@IER+1:16
+	bset	#1,@ISCRL+1:16	/* IRQ0 Positive Edge */
+	bclr	#0,@ISCRL+1:16
+
+#if defined(CONFIG_MTD_UCLINUX)
+	/* move romfs image */
+	jsr	@__move_romfs	
+#endif
+	
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	er5,er6
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr	#2,er4
+	sub.l	er0,er0
+1:	
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* uClinux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	;;      used,ddr
+	.byte	0x00,0x00
+	;; P2DDR
+	.byte	0x00,0x00
+	;; P3DDR
+	.byte	0x3f,0x3a
+	;; dummy
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x00,0x00
+	;; P6DDR
+	.byte	0x00,0x00
+	;; P7DDR
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0xff,0xff
+	;; PBDDR
+	.byte	0xff,0x00
+	;; PCDDR
+	.byte	0xff,0x00
+	;; PDDDR
+	.byte	0xff,0x00
+	;; PEDDR
+	.byte	0xff,0x00
+	;; PFDDR
+	.byte	0xff,0xff
+	;; PGDDR
+	.byte	0x0f,0x0f
+	;; PHDDR
+	.byte	0x0f,0x0f
+
+__target_name:	
+	.asciz	"EDOSK-2674"
+	
+	.section .bootvec,"ax"
+	jmp	@SYMBOL_NAME(_start)

arch/h8300/platform/h8s/edosk2674/crt0_rom.S

@@ -0,0 +1,187 @@
+/*
+ *  linux/arch/h8300/platform/h8s/edosk2674/crt0_rom.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	EDOSK-2674
+ *  Memory Layout     :	ROM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+#include <asm/regs267x.h>
+		
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(_command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300s
+	.section .text
+	.file	"crt0_rom.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#__ramend,sp
+	ldc	#0x80,ccr
+	ldc	#0,exr
+	
+	/* Peripheral Setup */
+;BSC/GPIO setup
+	mov.l	#init_regs,er0
+	mov.w	#0xffff,e2
+1:
+	mov.w	@er0+,r2
+	beq	2f
+	mov.w	@er0+,r1
+	mov.b	r1l,@er2
+	bra	1b
+
+2:
+;SDRAM setup
+#define SDRAM_SMR 0x400040
+
+	mov.b	#0,r0l
+	mov.b	r0l,@DRACCR:16
+	mov.w	#0x188,r0
+	mov.w	r0,@REFCR:16
+	mov.w	#0x85b4,r0
+	mov.w	r0,@DRAMCR:16
+	mov.b	#0,r1l
+	mov.b	r1l,@SDRAM_SMR
+	mov.w	#0x84b4,r0
+	mov.w	r0,@DRAMCR:16
+;special thanks to Arizona Cooperative Power
+	
+	/* copy .data */
+	mov.l	#__begin_data,er5
+	mov.l	#__sdata,er6
+	mov.l	#__edata,er4
+	sub.l	er6,er4
+	shlr.l	#2,er4
+1:	
+	mov.l	@er5+,er0
+	mov.l	er0,@er6
+	adds	#4,er6
+	dec.l	#1,er4
+	bne	1b	
+
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr.l	#2,er4		
+	sub.l	er0,er0
+1:
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(_command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* linux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+#define INIT_REGS_DATA(REGS,DATA) \
+	.word	((REGS) & 0xffff),DATA
+
+init_regs:
+INIT_REGS_DATA(ASTCR,0xff)
+INIT_REGS_DATA(RDNCR,0x00)
+INIT_REGS_DATA(ABWCR,0x80)
+INIT_REGS_DATA(WTCRAH,0x27)
+INIT_REGS_DATA(WTCRAL,0x77)
+INIT_REGS_DATA(WTCRBH,0x71)
+INIT_REGS_DATA(WTCRBL,0x22)
+INIT_REGS_DATA(CSACRH,0x80)
+INIT_REGS_DATA(CSACRL,0x80)
+INIT_REGS_DATA(BROMCRH,0xa0)
+INIT_REGS_DATA(BROMCRL,0xa0)
+INIT_REGS_DATA(P3DDR,0x3a)
+INIT_REGS_DATA(P3ODR,0x06)
+INIT_REGS_DATA(PADDR,0xff)
+INIT_REGS_DATA(PFDDR,0xfe)
+INIT_REGS_DATA(PGDDR,0x0f)
+INIT_REGS_DATA(PHDDR,0x0f)
+INIT_REGS_DATA(PFCR0,0xff)
+INIT_REGS_DATA(PFCR2,0x0d)
+INIT_REGS_DATA(ITSR, 0x00)
+INIT_REGS_DATA(ITSR+1,0x3f)
+INIT_REGS_DATA(INTCR,0x20)
+		
+	.word	0
+
+gpio_table:
+	;; P1DDR
+	.byte	0x00,0x00
+	;; P2DDR
+	.byte	0x00,0x00
+	;; P3DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x00,0x00
+	;; P6DDR
+	.byte	0x00,0x00
+	;; P7DDR
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x00,0x00
+	;; PCDDR
+	.byte	0x00,0x00
+	;; PDDDR
+	.byte	0x00,0x00
+	;; PEDDR
+	.byte	0x00,0x00
+	;; PFDDR
+	.byte	0x00,0x00
+	;; PGDDR
+	.byte	0x00,0x00
+	;; PHDDR
+	.byte	0x00,0x00
+
+	.section .rodata
+__target_name:	
+	.asciz	"EDOSK-2674"
+	
+	.section .bss
+__command_line:	
+	.space	512
+
+	/* interrupt vector */
+	.section .vectors,"ax"
+	.long	__start
+	.long	__start
+vector	=	2
+	.rept	126
+	.long	_interrupt_redirect_table+vector*4
+vector	=	vector + 1
+	.endr

arch/h8300/platform/h8s/edosk2674/timer.c

@@ -0,0 +1,55 @@
+/*
+ *  linux/arch/h8300/platform/h8s/edosk2674/timer.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend Timer Handler
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/timex.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/regs267x.h>
+
+#define CMFA 6
+
+#define CMIEA 0x40
+#define CCLR_CMA 0x08
+#define CLK_DIV8192 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	/* 8bit timer module enabled */
+	ctrl_outb(ctrl_inb(MSTPCRL) & ~0x01, MSTPCRL);
+	/* setup 8bit timer ch1 */
+	ctrl_outb(H8300_TIMER_FREQ / HZ, _8TCORA1);      /* set interval */
+	ctrl_outb(0x00, _8TCSR1);                        /* no output */
+	request_irq(76, timer_int, 0, "timer" ,0);
+	ctrl_outb(CMIEA|CCLR_CMA|CLK_DIV8192, _8TCR1);   /* start count */
+}
+
+void platform_timer_eoi(void)
+{
+	*(volatile unsigned char *)_8TCSR1 &= ~(1 << CMFA);
+}
+
+void platform_gettod(int *year, int *mon, int *day, int *hour,
+		 int *min, int *sec)
+{
+/* FIXME! not RTC support */
+	*year = *mon = *day = *hour = *min = *sec = 0;
+}

arch/h8300/platform/h8s/entry.S

@@ -0,0 +1,331 @@
+/* -*- mode: asm -*-
+ *
+ *  linux/arch/h8300/platform/h8s/entry.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *	fairly heavy changes to fix syscall args and signal processing
+ *	by David McCullough <davidm@snapgear.com>
+ */
+
+/*
+ *  entry.S
+ *  include exception/interrupt gateway
+ *          system call entry
+ */
+
+#include <linux/sys.h>
+#include <linux/config.h>
+#include <asm/unistd.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+
+	.h8300s
+
+/* CPU context save/restore macros. */
+	
+	.macro	SAVE_ALL
+	mov.l	er0,@-sp
+
+	stc	ccr,r0l				/* check kernel mode */
+	orc	#0x10,ccr
+	btst	#4,r0l
+	bne	5f
+
+	mov.l	sp,@SYMBOL_NAME(sw_usp)		/* user mode */
+	mov.l	@sp,er0
+	mov.l	@SYMBOL_NAME(sw_ksp),sp
+	sub.l	#(LRET-LORIG),sp		/* allocate LORIG - LRET */ 
+	stm.l	er0-er3,@-sp
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@(10:16,er0),er1		/* copy the RET addr */
+	mov.l	er1,@(LRET-LER3:16,sp)
+	mov.w	@(8:16,er0),r1
+	mov.w	r1,@(LEXR-LER3:16,sp)		/* copy EXR */
+
+	mov.w	e1,r1				/* e1 highbyte = ccr */
+	and	#0xef,r1h			/* mask mode? flag */
+	sub.w	r0,r0
+	mov.b	r1h,r0l
+	mov.w	r0,@(LCCR-LER3:16,sp)		/* copy ccr */
+	mov.l	@(LORIG-LER3:16,sp),er0
+	mov.l	er0,@(LER0-LER3:16,sp)		/* copy ER0 */
+	bra	6f
+5:
+	mov.l	@sp,er0				/* kernel mode */
+	subs	#2,sp				/* dummy ccr */
+	stm.l	er0-er3,@-sp
+	mov.w	@(LRET-LER3:16,sp),r1		/* copy old ccr */
+	mov.b	r1h,r1l
+	mov.b	#0,r1h
+	mov.w	r1,@(LCCR-LER3:16,sp)
+6:	
+	mov.l	er6,@-sp			/* syscall arg #6 */
+	mov.l	er5,@-sp			/* syscall arg #5 */
+	mov.l	er4,@-sp			/* syscall arg #4 */
+	.endm
+
+	.macro	RESTORE_ALL
+	mov.l	@sp+,er4
+	mov.l	@sp+,er5
+	mov.l	@sp+,er6
+	ldm.l	@sp+,er2-er3
+	mov.w	@(LCCR-LER1:16,sp),r0		/* check kernel mode */
+	btst	#4,r0l
+	bne	7f
+
+	orc	#0x80,ccr
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@(LER0-LER1:16,sp),er1		/* restore ER0 */
+	mov.l	er1,@er0
+	mov.w	@(LEXR-LER1:16,sp),r1		/* restore EXR */
+	mov.b	r1l,r1h
+	mov.w	r1,@(8:16,er0)
+	mov.w	@(LCCR-LER1:16,sp),r1		/* restore the RET addr */
+	mov.b	r1l,r1h
+	mov.b	@(LRET+1-LER1:16,sp),r1l
+	mov.w	r1,e1
+	mov.w	@(LRET+2-LER1:16,sp),r1
+	mov.l	er1,@(10:16,er0)
+
+	mov.l	@sp+,er1
+	add.l	#(LRET-LER1),sp			/* remove LORIG - LRET */ 
+	mov.l	sp,@SYMBOL_NAME(sw_ksp)
+	mov.l	er0,sp
+	bra	8f
+7:
+	mov.l	@sp+,er1
+	adds	#4,sp
+	adds	#2,sp
+8:
+	mov.l	@sp+,er0
+	adds	#4,sp				/* remove the sw created LVEC */
+	rte
+	.endm
+	
+.globl SYMBOL_NAME(system_call)
+.globl SYMBOL_NAME(ret_from_exception)
+.globl SYMBOL_NAME(ret_from_fork)
+.globl SYMBOL_NAME(ret_from_interrupt)
+.globl SYMBOL_NAME(interrupt_redirect_table)
+.globl SYMBOL_NAME(sw_ksp),SYMBOL_NAME(sw_usp)
+.globl SYMBOL_NAME(resume)
+.globl SYMBOL_NAME(trace_break)
+.globl SYMBOL_NAME(interrupt_entry)
+		
+INTERRUPTS = 128
+#if defined(CONFIG_ROMKERNEL)
+	.section .int_redirect,"ax"
+SYMBOL_NAME_LABEL(interrupt_redirect_table)
+	.rept	7
+	.long	0
+	.endr
+	jsr	@SYMBOL_NAME(interrupt_entry)	/* NMI */
+	jmp	@SYMBOL_NAME(system_call)	/* TRAPA #0 (System call) */
+	.long	0
+	.long	0
+	jmp	@SYMBOL_NAME(trace_break)	/* TRAPA #3 (breakpoint) */
+	.rept	INTERRUPTS-12
+	jsr	@SYMBOL_NAME(interrupt_entry)
+	.endr
+#endif
+#if defined(CONFIG_RAMKERNEL)
+.globl SYMBOL_NAME(interrupt_redirect_table)
+	.section .bss
+SYMBOL_NAME_LABEL(interrupt_redirect_table)
+	.space	4
+#endif
+	
+	.section .text
+	.align	2
+SYMBOL_NAME_LABEL(interrupt_entry)
+	SAVE_ALL
+	mov.w	@(LCCR,sp),r0
+	btst	#4,r0l
+	bne	1f
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@(4:16,er0),er0
+	bra	2f
+1:
+	mov.l	@(LVEC:16,sp),er0
+2:
+#if defined(CONFIG_ROMKERNEL)
+	sub.l	#SYMBOL_NAME(interrupt_redirect_table),er0
+#endif
+#if defined(CONFIG_RAMKERNEL)
+	mov.l	@SYMBOL_NAME(interrupt_redirect_table),er1
+	sub.l	er1,er0
+#endif
+	shlr.l	#2,er0
+	dec.l	#1,er0
+	mov.l	sp,er1
+	subs	#4,er1				/* adjust ret_pc */
+	jsr	@SYMBOL_NAME(process_int)
+	mov.l	@SYMBOL_NAME(irq_stat)+CPUSTAT_SOFTIRQ_PENDING,er0
+	beq	1f
+	jsr	@SYMBOL_NAME(do_softirq)
+1:
+	jmp	@SYMBOL_NAME(ret_from_exception)
+
+SYMBOL_NAME_LABEL(system_call)
+	subs	#4,sp				/* dummy LVEC */
+	SAVE_ALL
+	mov.w	@(LCCR:16,sp),r1
+	bset	#4,r1l
+	ldc	r1l,ccr				/* restore ccr */
+	mov.l	er0,er4
+	mov.l	#-ENOSYS,er0
+	mov.l	er0,@(LER0:16,sp)
+
+	/* save top of frame */
+	mov.l	sp,er0
+	jsr	@SYMBOL_NAME(set_esp0)
+	cmp.l	#NR_syscalls,er4
+	bcc	SYMBOL_NAME(ret_from_exception):16
+	shll.l	#2,er4
+	mov.l	#SYMBOL_NAME(sys_call_table),er0
+	add.l	er4,er0
+	mov.l	@er0,er0
+	mov.l	er0,er4
+	beq	SYMBOL_NAME(ret_from_exception):16	
+	mov.l	sp,er2
+	and.w	#0xe000,r2
+	mov.b	@((TASK_FLAGS+3-(TIF_SYSCALL_TRACE >> 3)):16,er2),r2l
+	btst	#(TIF_SYSCALL_TRACE & 7),r2l
+	mov.l	@(LER1:16,sp),er0
+	mov.l	@(LER2:16,sp),er1
+	mov.l	@(LER3:16,sp),er2
+	jsr	@er4
+	mov.l	er0,@(LER0:16,sp)			/* save the return value */
+#if defined(CONFIG_SYSCALL_PRINT)
+	jsr	@SYMBOL_NAME(syscall_print)
+#endif
+	bra	SYMBOL_NAME(ret_from_exception):8
+1:
+	jsr	SYMBOL_NAME(syscall_trace)
+	mov.l	@(LER1:16,sp),er0
+	mov.l	@(LER2:16,sp),er1
+	mov.l	@(LER3:16,sp),er2
+	jsr	@er4
+	mov.l	er0,@(LER0:16,sp)		/* save the return value */
+	jsr	@SYMBOL_NAME(syscall_trace)
+	bra	SYMBOL_NAME(ret_from_exception):8
+
+SYMBOL_NAME_LABEL(ret_from_fork)
+	mov.l	er2,er0
+	jsr	@SYMBOL_NAME(schedule_tail)
+	bra	SYMBOL_NAME(ret_from_exception):8
+
+SYMBOL_NAME_LABEL(reschedule)
+	/* save top of frame */
+	mov.l	sp,er0
+	jsr	@SYMBOL_NAME(set_esp0)
+	jsr	@SYMBOL_NAME(schedule)
+
+SYMBOL_NAME_LABEL(ret_from_exception)
+#if defined(CONFIG_PREEMPT)
+	orc	#0x80,ccr
+#endif
+SYMBOL_NAME_LABEL(ret_from_interrupt)
+	mov.b	@(LCCR+1:16,sp),r0l
+	btst	#4,r0l			/* check if returning to kernel */
+	bne	done:8			/* if so, skip resched, signals */
+	andc	#0x7f,ccr
+	mov.l	sp,er4
+	and.w	#0xe000,r4
+	mov.l	@(TI_FLAGS:16,er4),er1
+	and.l	#_TIF_WORK_MASK,er1
+	beq	done:8
+1:
+	mov.l	@(TI_FLAGS:16,er4),er1
+	btst	#TIF_NEED_RESCHED,r1l
+	bne	SYMBOL_NAME(reschedule):16
+	mov.l	sp,er0
+	subs	#4,er0			/* adjust retpc */
+	mov.l	er2,er1
+	jsr	@SYMBOL_NAME(do_signal)
+#if defined(CONFIG_PREEMPT)
+	bra	done:8			/* userspace thoru */
+3:
+	btst	#4,r0l
+	beq	done:8			/* userspace thoru */
+4:
+	mov.l	@(TI_PRE_COUNT:16,er4),er1
+	bne	done:8
+	mov.l	@(TI_FLAGS:16,er4),er1
+	btst	#TIF_NEED_RESCHED,r1l
+	beq	done:8
+	mov.b	r0l,r0l
+	bpl	done:8			/* interrupt off (exception path?) */
+	mov.l	#PREEMPT_ACTIVE,er1
+	mov.l	er1,@(TI_PRE_COUNT:16,er4)
+	andc	#0x7f,ccr
+	jsr	@SYMBOL_NAME(schedule)
+	sub.l	er1,er1
+	mov.l	er1,@(TI_PRE_COUNT:16,er4)
+	orc	#0x80,ccr
+	bra	4b:8
+#endif
+done:
+	RESTORE_ALL			/* Does RTE */
+
+SYMBOL_NAME_LABEL(resume)
+	/*
+	 *	er0 = prev
+	 *	er1 = next
+	 *	return last in er2
+	 */
+
+	/* save sr */
+	sub.w	r3,r3
+	stc	ccr,r3l
+	stc	exr,r3h
+	mov.w	r3,@(THREAD_CCR+2:16,er0)
+
+	/* disable interrupts */
+	orc	#0x80,ccr
+	mov.l	@SYMBOL_NAME(sw_usp),er3
+	mov.l	er3,@(THREAD_USP:16,er0)
+	mov.l	sp,@(THREAD_KSP:16,er0)
+	
+	/* Skip address space switching if they are the same. */
+	/* FIXME: what did we hack out of here, this does nothing! */
+
+	mov.l	@(THREAD_USP:16,er1),er0
+	mov.l	er0,@SYMBOL_NAME(sw_usp)
+	mov.l	@(THREAD_KSP:16,er1),sp
+			
+	/* restore status register */
+	mov.w	@(THREAD_CCR+2:16,er1),r3
+
+	ldc	r3l,ccr
+	ldc	r3h,exr
+
+	rts
+
+SYMBOL_NAME_LABEL(trace_break)
+	subs	#4,sp			/* dummy LVEC */
+	SAVE_ALL
+	sub.l	er1,er1
+	dec.l	#1,er1
+	mov.l	er1,@(LORIG,sp)	
+	mov.l	sp,er0
+	jsr	@SYMBOL_NAME(set_esp0)
+	mov.l	@SYMBOL_NAME(sw_usp),er0
+	mov.l	@er0,er1
+	subs	#2,er1
+	mov.l	er1,@er0	
+	and.w	#0xff,e1
+	mov.l	er1,er0
+	jsr	@SYMBOL_NAME(trace_trap)
+	jmp	@SYMBOL_NAME(ret_from_exception)	
+
+	.section	.bss
+SYMBOL_NAME_LABEL(sw_ksp)
+	.space	4	
+SYMBOL_NAME_LABEL(sw_usp)
+	.space	4	

arch/h8300/platform/h8s/generic/Makefile

@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y =  crt0_$(MODEL).o
+obj-y := timer.o

arch/h8300/platform/h8s/generic/crt0_ram.S

@@ -0,0 +1,128 @@
+/*
+ *  linux/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup
+ *  Target Archtecture:	generic
+ *  Memory Layout     :	RAM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+#include <asm/regs267x.h>
+			
+#if !defined(CONFIG_BLKDEV_RESERVE)
+#if defined(CONFIG_GDB_DEBUG)
+#define RAMEND (__ramend - 0xc000)
+#else
+#define RAMEND __ramend
+#endif
+#else
+#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
+#endif
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(_command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300s
+
+	.section .text
+	.file	"crt0_ram.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#RAMEND,sp
+	ldc	#0x80,ccr
+	ldc	#0x00,exr
+
+	/* Peripheral Setup */
+	bclr	#4,@INTCR:8	/* interrupt mode 2 */
+	bset	#5,@INTCR:8
+
+#if defined(CONFIG_MTD_UCLINUX)
+	/* move romfs image */
+	jsr	@__move_romfs	
+#endif
+	
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	er5,er6
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr	#2,er4
+	sub.l	er0,er0
+1:	
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* copy kernel commandline */
+	mov.l	#COMMAND_START,er5
+	mov.l	#SYMBOL_NAME(command_line),er6
+	mov.w	#512,r4
+	eepmov.w
+
+	/* uClinux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	;;      used,ddr
+	.byte	0x00,0x00
+	;; P2DDR
+	.byte	0x00,0x00
+	;; P3DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x00,0x00
+	;; P6DDR
+	.byte	0x00,0x00
+	;; P7DDR
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x00,0x00
+	;; PCDDR
+	.byte	0x00,0x00
+	;; PDDDR
+	.byte	0x00,0x00
+	;; PEDDR
+	.byte	0x00,0x00
+	;; PFDDR
+	.byte	0x00,0x00
+	;; PGDDR
+	.byte	0x00,0x00
+	;; PHDDR
+	.byte	0x00,0x00
+
+__target_name:	
+	.asciz	"generic"
+	
+	.section .bootvec,"ax"
+	jmp	@SYMBOL_NAME(_start)

arch/h8300/platform/h8s/generic/crt0_rom.S

@@ -0,0 +1,129 @@
+/*
+ *  linux/arch/h8300/platform/h8s/generic/crt0_rom.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend startup 
+ *  Target Archtecture:	generic
+ *  Memory Layout     :	ROM
+ */
+
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <asm/linkage.h>
+#include <asm/regs267x.h>
+	
+	.global SYMBOL_NAME(_start)
+	.global SYMBOL_NAME(_command_line)
+	.global SYMBOL_NAME(_platform_gpio_table)
+	.global SYMBOL_NAME(_target_name)
+	
+	.h8300s
+	.section .text
+	.file	"crt0_rom.S"
+
+	/* CPU Reset entry */
+SYMBOL_NAME_LABEL(_start)
+	mov.l	#__ramend,sp
+	ldc	#0x80,ccr
+	ldc	#0,exr
+	bclr	#4,@INTCR:8
+	bset	#5,@INTCR:8	/* Interrupt mode 2 */
+	
+	/* Peripheral Setup */
+	
+	/* copy .data */
+#if !defined(CONFIG_H8S_SIM)
+	mov.l	#__begin_data,er5
+	mov.l	#__sdata,er6
+	mov.l	#__edata,er4
+	sub.l	er6,er4
+	shlr.l	#2,er4
+1:	
+	mov.l	@er5+,er0
+	mov.l	er0,@er6
+	adds	#4,er6
+	dec.l	#1,er4
+	bne	1b	
+#endif
+
+	/* .bss clear */
+	mov.l	#__sbss,er5
+	mov.l	#__ebss,er4
+	sub.l	er5,er4
+	shlr.l	#2,er4		
+	sub.l	er0,er0
+1:
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+
+	/* linux kernel start */
+	ldc	#0x90,ccr	/* running kernel */
+	mov.l	#SYMBOL_NAME(init_thread_union),sp
+	add.l	#0x2000,sp
+	jsr	@_start_kernel
+_exit:
+
+	jmp	_exit
+
+	rts
+
+	/* I/O port assign information */
+__platform_gpio_table:	
+	mov.l	#gpio_table,er0
+	rts
+
+gpio_table:
+	;; P1DDR
+	.byte	0x00,0x00
+	;; P2DDR
+	.byte	0x00,0x00
+	;; P3DDR
+	.byte	0x00,0x00
+	;; P4DDR
+	.byte	0x00,0x00
+	;; P5DDR
+	.byte	0x00,0x00
+	;; P6DDR
+	.byte	0x00,0x00
+	;; dummy
+	.byte	0x00,0x00
+	;; P8DDR
+	.byte	0x00,0x00
+	;; PADDR
+	.byte	0x00,0x00
+	;; PBDDR
+	.byte	0x00,0x00
+	;; PCDDR
+	.byte	0x00,0x00
+	;; PDDDR
+	.byte	0x00,0x00
+	;; PEDDR
+	.byte	0x00,0x00
+	;; PFDDR
+	.byte	0x00,0x00
+	;; PGDDR
+	.byte	0x00,0x00
+	;; PHDDR
+	.byte	0x00,0x00
+
+	.section .rodata
+__target_name:	
+	.asciz	"generic"
+	
+	.section .bss
+__command_line:	
+	.space	512
+
+	/* interrupt vector */
+	.section .vectors,"ax"
+	.long	__start
+	.long	__start
+vector	=	2
+	.rept	126-1
+	.long	_interrupt_redirect_table+vector*4
+vector	=	vector + 1
+	.endr

arch/h8300/platform/h8s/generic/timer.c

@@ -0,0 +1,54 @@
+/*
+ *  linux/arch/h8300/platform/h8s/generic/timer.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend Timer Handler
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/timex.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/regs267x.h>
+
+#define CMFA 6
+
+#define CMIEA 0x40
+#define CCLR_CMA 0x08
+#define CLK_DIV8192 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	/* 8bit timer module enabled */
+	ctrl_outb(ctrl_inb(MSTPCRL) & ~0x01, MSTPCRL);
+	/* setup 8bit timer ch1 */
+	ctrl_outb(H8300_TIMER_FREQ / HZ, _8TCORA1);      /* set interval */
+	ctrl_outb(0x00, _8TCSR1);                        /* no output */
+	request_irq(76, timer_int, 0, "timer" ,0);
+	ctrl_outb(CMIEA|CCLR_CMA|CLK_DIV8192, _8TCR1);   /* start count */
+}
+
+void platform_timer_eoi(void)
+{
+	*(volatile unsigned char *)_8TCSR1 &= ~(1 << CMFA);
+}
+
+void platform_gettod(int *year, int *mon, int *day, int *hour,
+		 int *min, int *sec)
+{
+	*year = *mon = *day = *hour = *min = *sec = 0;
+}

arch/h8300/platform/h8s/ints.c

@@ -0,0 +1,303 @@
+/*
+ * linux/arch/h8300/platform/h8s/ints.c
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * Based on linux/arch/$(ARCH)/platform/$(PLATFORM)/ints.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ * Copyright 1996 Roman Zippel
+ * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/random.h>
+#include <linux/hardirq.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/io.h>
+#include <asm/setup.h>
+#include <asm/gpio.h>
+#include <asm/regs267x.h>
+#include <asm/errno.h>
+
+/*
+ * This structure has only 4 elements for speed reasons
+ */
+typedef struct irq_handler {
+	irqreturn_t (*handler)(int, void *, struct pt_regs *);
+	int         flags;
+	int         count;
+	void	    *dev_id;
+	const char  *devname;
+} irq_handler_t;
+
+static irq_handler_t *irq_list[NR_IRQS];
+
+/* IRQ pin assignment */
+struct irq_pins {
+	unsigned char port_no;
+	unsigned char bit_no;
+};
+/* ISTR = 0 */
+const static struct irq_pins irq_assign_table0[16]={
+        {H8300_GPIO_P5,H8300_GPIO_B0},{H8300_GPIO_P5,H8300_GPIO_B1},
+	{H8300_GPIO_P5,H8300_GPIO_B2},{H8300_GPIO_P5,H8300_GPIO_B3},
+	{H8300_GPIO_P5,H8300_GPIO_B4},{H8300_GPIO_P5,H8300_GPIO_B5},
+	{H8300_GPIO_P5,H8300_GPIO_B6},{H8300_GPIO_P5,H8300_GPIO_B7},
+	{H8300_GPIO_P6,H8300_GPIO_B0},{H8300_GPIO_P6,H8300_GPIO_B1},
+	{H8300_GPIO_P6,H8300_GPIO_B2},{H8300_GPIO_P6,H8300_GPIO_B3},
+	{H8300_GPIO_P6,H8300_GPIO_B4},{H8300_GPIO_P6,H8300_GPIO_B5},
+	{H8300_GPIO_PF,H8300_GPIO_B1},{H8300_GPIO_PF,H8300_GPIO_B2},
+};
+/* ISTR = 1 */
+const static struct irq_pins irq_assign_table1[16]={
+	{H8300_GPIO_P8,H8300_GPIO_B0},{H8300_GPIO_P8,H8300_GPIO_B1},
+	{H8300_GPIO_P8,H8300_GPIO_B2},{H8300_GPIO_P8,H8300_GPIO_B3},
+	{H8300_GPIO_P8,H8300_GPIO_B4},{H8300_GPIO_P8,H8300_GPIO_B5},
+	{H8300_GPIO_PH,H8300_GPIO_B2},{H8300_GPIO_PH,H8300_GPIO_B3},
+	{H8300_GPIO_P2,H8300_GPIO_B0},{H8300_GPIO_P2,H8300_GPIO_B1},
+	{H8300_GPIO_P2,H8300_GPIO_B2},{H8300_GPIO_P2,H8300_GPIO_B3},
+	{H8300_GPIO_P2,H8300_GPIO_B4},{H8300_GPIO_P2,H8300_GPIO_B5},
+	{H8300_GPIO_P2,H8300_GPIO_B6},{H8300_GPIO_P2,H8300_GPIO_B7},
+};
+
+static short use_kmalloc = 0;
+
+extern unsigned long *interrupt_redirect_table;
+
+#define CPU_VECTOR ((unsigned long *)0x000000)
+#define ADDR_MASK (0xffffff)
+
+static inline unsigned long *get_vector_address(void)
+{
+	volatile unsigned long *rom_vector = CPU_VECTOR;
+	unsigned long base,tmp;
+	int vec_no;
+
+	base = rom_vector[EXT_IRQ0] & ADDR_MASK;
+	
+	/* check romvector format */
+	for (vec_no = EXT_IRQ1; vec_no <= EXT_IRQ15; vec_no++) {
+		if ((base+(vec_no - EXT_IRQ0)*4) != (rom_vector[vec_no] & ADDR_MASK))
+			return NULL;
+	}
+
+	/* ramvector base address */
+	base -= EXT_IRQ0*4;
+
+	/* writerble check */
+	tmp = ~(*(unsigned long *)base);
+	(*(unsigned long *)base) = tmp;
+	if ((*(unsigned long *)base) != tmp)
+		return NULL;
+	return (unsigned long *)base;
+}
+
+void __init init_IRQ(void)
+{
+#if defined(CONFIG_RAMKERNEL)
+	int i;
+	unsigned long *ramvec,*ramvec_p;
+	unsigned long break_vec;
+
+	ramvec = get_vector_address();
+	if (ramvec == NULL)
+		panic("interrupt vector serup failed.");
+	else
+		printk("virtual vector at 0x%08lx\n",(unsigned long)ramvec);
+
+#if defined(CONFIG_GDB_DEBUG)
+	/* save orignal break vector */
+	break_vec = ramvec[TRAP3_VEC];
+#else
+	break_vec = VECTOR(trace_break);
+#endif
+
+	/* create redirect table */
+	for (ramvec_p = ramvec, i = 0; i < NR_IRQS; i++)
+		*ramvec_p++ = REDIRECT(interrupt_entry);
+
+	/* set special vector */
+	ramvec[TRAP0_VEC] = VECTOR(system_call);
+	ramvec[TRAP3_VEC] = break_vec;
+	interrupt_redirect_table = ramvec;
+#ifdef DUMP_VECTOR
+	ramvec_p = ramvec;
+	for (i = 0; i < NR_IRQS; i++) {
+		if ((i % 8) == 0)
+			printk("\n%p: ",ramvec_p);
+		printk("%p ",*ramvec_p);
+		ramvec_p++;
+	}
+	printk("\n");
+#endif
+#endif
+}
+
+int request_irq(unsigned int irq,
+		irqreturn_t (*handler)(int, void *, struct pt_regs *),
+                unsigned long flags, const char *devname, void *dev_id)
+{
+	unsigned short ptn = 1 << (irq - EXT_IRQ0);
+	irq_handler_t *irq_handle;
+	if (irq < 0 || irq >= NR_IRQS) {
+		printk("Incorrect IRQ %d from %s\n", irq, devname);
+		return -EINVAL;
+	}
+	if (irq_list[irq])
+		return -EBUSY; /* already used */
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
+		/* initialize IRQ pin */
+		unsigned int port_no,bit_no;
+		if (*(volatile unsigned short *)ITSR & ptn) {
+			port_no = irq_assign_table1[irq - EXT_IRQ0].port_no;
+			bit_no = irq_assign_table1[irq - EXT_IRQ0].bit_no;
+		} else {
+			port_no = irq_assign_table0[irq - EXT_IRQ0].port_no;
+			bit_no = irq_assign_table0[irq - EXT_IRQ0].bit_no;
+		}
+		if (H8300_GPIO_RESERVE(port_no, bit_no) == 0)
+			return -EBUSY;                   /* pin already use */
+		H8300_GPIO_DDR(port_no, bit_no, H8300_GPIO_INPUT);
+		*(volatile unsigned short *)ISR &= ~ptn; /* ISR clear */
+	}		
+
+	if (use_kmalloc)
+		irq_handle = (irq_handler_t *)kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
+	else {
+		/* use bootmem allocater */
+		irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
+		irq_handle = (irq_handler_t *)((unsigned long)irq_handle | 0x80000000);
+	}
+
+	if (irq_handle == NULL)
+		return -ENOMEM;
+
+	irq_handle->handler = handler;
+	irq_handle->flags   = flags;
+	irq_handle->count   = 0;
+	irq_handle->dev_id  = dev_id;
+	irq_handle->devname = devname;
+	irq_list[irq] = irq_handle;
+	if (irq_handle->flags & SA_SAMPLE_RANDOM)
+		rand_initialize_irq(irq);
+	
+	/* enable interrupt */
+	/* compatible i386  */
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15)
+		*(volatile unsigned short *)IER |= ptn;
+	return 0;
+}
+
+EXPORT_SYMBOL(request_irq);
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+	if (irq >= NR_IRQS)
+		return;
+	if (irq_list[irq]->dev_id != dev_id)
+		printk("%s: Removing probably wrong IRQ %d from %s\n",
+		       __FUNCTION__, irq, irq_list[irq]->devname);
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
+		/* disable interrupt & release IRQ pin */
+		unsigned short port_no,bit_no;
+		*(volatile unsigned short *)ISR &= ~(1 << (irq - EXT_IRQ0));
+		*(volatile unsigned short *)IER |= 1 << (irq - EXT_IRQ0);
+		if (*(volatile unsigned short *)ITSR & (1 << (irq - EXT_IRQ0))) {
+			port_no = irq_assign_table1[irq - EXT_IRQ0].port_no;
+			bit_no = irq_assign_table1[irq - EXT_IRQ0].bit_no;
+		} else {
+			port_no = irq_assign_table0[irq - EXT_IRQ0].port_no;
+			bit_no = irq_assign_table0[irq - EXT_IRQ0].bit_no;
+		}
+		H8300_GPIO_FREE(port_no, bit_no);
+	}
+	if (((unsigned long)irq_list[irq] & 0x80000000) == 0) {
+		kfree(irq_list[irq]);
+		irq_list[irq] = NULL;
+	}
+}
+
+EXPORT_SYMBOL(free_irq);
+
+unsigned long probe_irq_on (void)
+{
+	return 0;
+}
+
+EXPORT_SYMBOL(probe_irq_on);
+
+int probe_irq_off (unsigned long irqs)
+{
+	return 0;
+}
+
+EXPORT_SYMBOL(probe_irq_off);
+
+void enable_irq(unsigned int irq)
+{
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15)
+		*(volatile unsigned short *)IER |= 1 << (irq - EXT_IRQ0);
+}
+
+void disable_irq(unsigned int irq)
+{
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15)
+		*(volatile unsigned short *)IER &= ~(1 << (irq - EXT_IRQ0));
+}
+
+asmlinkage void process_int(unsigned long vec, struct pt_regs *fp)
+{
+	irq_enter();
+	/* ISR clear       */
+	/* compatible i386 */
+	if (vec >= EXT_IRQ0 && vec <= EXT_IRQ15)
+		*(volatile unsigned short *)ISR &= ~(1 << (vec - EXT_IRQ0));
+	if (vec < NR_IRQS) {
+		if (irq_list[vec]) {
+			irq_list[vec]->handler(vec, irq_list[vec]->dev_id, fp);
+			irq_list[vec]->count++;
+			if (irq_list[vec]->flags & SA_SAMPLE_RANDOM)
+				add_interrupt_randomness(vec);
+		}
+	} else {
+		BUG();
+	}
+	irq_exit();
+}
+
+int show_interrupts(struct seq_file *p, void *v)
+{
+	int i = *(loff_t *) v;
+
+	if ((i < NR_IRQS) && (irq_list[i] !=NULL)) {
+		seq_printf(p, "%3d: %10u ",i,irq_list[i]->count);
+		seq_printf(p, "%s\n", irq_list[i]->devname);
+	}
+
+	return 0;
+}
+
+void init_irq_proc(void)
+{
+}
+
+static int __init enable_kmalloc(void)
+{
+	use_kmalloc = 1;
+	return 0;
+}
+core_initcall(enable_kmalloc);

arch/h8300/platform/h8s/ints_h8s.c

@@ -0,0 +1,105 @@
+/*
+ * linux/arch/h8300/platform/h8s/ints_h8s.c
+ * Interrupt handling CPU variants
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+
+#include <asm/ptrace.h>
+#include <asm/traps.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/regs267x.h>
+
+/* saved vector list */
+const int __initdata h8300_saved_vectors[]={
+#if defined(CONFIG_GDB_DEBUG)
+	TRACE_VEC,
+	TRAP3_VEC,
+#endif
+	-1
+};
+
+/* trap entry table */
+const unsigned long __initdata h8300_trap_table[NR_TRAPS]={
+	0,0,0,0,0,
+	(unsigned long)trace_break,  /* TRACE */
+	0,0,
+	(unsigned long)system_call,  /* TRAPA #0 */
+	0,0,0,0,0,0,0
+};
+
+/* IRQ pin assignment */
+struct irq_pins {
+	unsigned char port_no;
+	unsigned char bit_no;
+} __attribute__((aligned(1),packed));
+/* ISTR = 0 */
+const static struct irq_pins irq_assign_table0[16]={
+        {H8300_GPIO_P5,H8300_GPIO_B0},{H8300_GPIO_P5,H8300_GPIO_B1},
+	{H8300_GPIO_P5,H8300_GPIO_B2},{H8300_GPIO_P5,H8300_GPIO_B3},
+	{H8300_GPIO_P5,H8300_GPIO_B4},{H8300_GPIO_P5,H8300_GPIO_B5},
+	{H8300_GPIO_P5,H8300_GPIO_B6},{H8300_GPIO_P5,H8300_GPIO_B7},
+	{H8300_GPIO_P6,H8300_GPIO_B0},{H8300_GPIO_P6,H8300_GPIO_B1},
+	{H8300_GPIO_P6,H8300_GPIO_B2},{H8300_GPIO_P6,H8300_GPIO_B3},
+	{H8300_GPIO_P6,H8300_GPIO_B4},{H8300_GPIO_P6,H8300_GPIO_B5},
+	{H8300_GPIO_PF,H8300_GPIO_B1},{H8300_GPIO_PF,H8300_GPIO_B2},
+}; 
+/* ISTR = 1 */
+const static struct irq_pins irq_assign_table1[16]={
+	{H8300_GPIO_P8,H8300_GPIO_B0},{H8300_GPIO_P8,H8300_GPIO_B1},
+	{H8300_GPIO_P8,H8300_GPIO_B2},{H8300_GPIO_P8,H8300_GPIO_B3},
+	{H8300_GPIO_P8,H8300_GPIO_B4},{H8300_GPIO_P8,H8300_GPIO_B5},
+	{H8300_GPIO_PH,H8300_GPIO_B2},{H8300_GPIO_PH,H8300_GPIO_B3},
+	{H8300_GPIO_P2,H8300_GPIO_B0},{H8300_GPIO_P2,H8300_GPIO_B1},
+	{H8300_GPIO_P2,H8300_GPIO_B2},{H8300_GPIO_P2,H8300_GPIO_B3},
+	{H8300_GPIO_P2,H8300_GPIO_B4},{H8300_GPIO_P2,H8300_GPIO_B5},
+	{H8300_GPIO_P2,H8300_GPIO_B6},{H8300_GPIO_P2,H8300_GPIO_B7},
+};
+
+/* IRQ to GPIO pinno transrate */
+#define IRQ_GPIO_MAP(irqbit,irq,port,bit)			  \
+do {								  \
+	if (*(volatile unsigned short *)ITSR & irqbit) {	  \
+		port = irq_assign_table1[irq - EXT_IRQ0].port_no; \
+		bit  = irq_assign_table1[irq - EXT_IRQ0].bit_no;  \
+	} else {						  \
+		port = irq_assign_table0[irq - EXT_IRQ0].port_no; \
+		bit  = irq_assign_table0[irq - EXT_IRQ0].bit_no;  \
+	}							  \
+} while(0)
+
+int h8300_enable_irq_pin(unsigned int irq)
+{
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
+		unsigned short ptn = 1 << (irq - EXT_IRQ0);
+		unsigned int port_no,bit_no;
+		IRQ_GPIO_MAP(ptn, irq, port_no, bit_no);
+		if (H8300_GPIO_RESERVE(port_no, bit_no) == 0)
+			return -EBUSY;                   /* pin already use */
+		H8300_GPIO_DDR(port_no, bit_no, H8300_GPIO_INPUT);
+		*(volatile unsigned short *)ISR &= ~ptn; /* ISR clear */
+	}
+
+	return 0;
+}
+
+void h8300_disable_irq_pin(unsigned int irq)
+{
+	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
+		/* disable interrupt & release IRQ pin */
+		unsigned short ptn = 1 << (irq - EXT_IRQ0);
+		unsigned short port_no,bit_no;
+		*(volatile unsigned short *)ISR &= ~ptn;
+		*(volatile unsigned short *)IER &= ~ptn;
+		IRQ_GPIO_MAP(ptn, irq, port_no, bit_no);
+		H8300_GPIO_FREE(port_no, bit_no);
+	}
+}

arch/h8300/platform/h8s/ptrace_h8s.c

@@ -0,0 +1,84 @@
+/*
+ *  linux/arch/h8300/platform/h8s/ptrace_h8s.c
+ *    ptrace cpu depend helper functions
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <asm/ptrace.h>
+
+#define CCR_MASK  0x6f
+#define EXR_TRACE 0x80
+
+/* Mapping from PT_xxx to the stack offset at which the register is
+   saved.  Notice that usp has no stack-slot and needs to be treated
+   specially (see get_reg/put_reg below). */
+static const int h8300_register_offset[] = {
+	PT_REG(er1), PT_REG(er2), PT_REG(er3), PT_REG(er4),
+	PT_REG(er5), PT_REG(er6), PT_REG(er0), PT_REG(orig_er0),
+	PT_REG(ccr), PT_REG(pc),  0,           PT_REG(exr)
+};
+
+/* read register */
+long h8300_get_reg(struct task_struct *task, int regno)
+{
+	switch (regno) {
+	case PT_USP:
+		return task->thread.usp + sizeof(long)*2 + 2;
+	case PT_CCR:
+	case PT_EXR:
+	    return *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
+	default:
+	    return *(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]);
+	}
+}
+
+/* write register */
+int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
+{
+	unsigned short oldccr;
+	switch (regno) {
+	case PT_USP:
+		task->thread.usp = data - sizeof(long)*2 - 2;
+	case PT_CCR:
+		oldccr = *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
+		oldccr &= ~CCR_MASK;
+		data &= CCR_MASK;
+		data |= oldccr;
+		*(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
+		break;
+	case PT_EXR:
+		/* exr modify not support */
+		return -EIO;
+	default:
+		*(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
+		break;
+	}
+	return 0;
+}
+
+/* disable singlestep */
+void h8300_disable_trace(struct task_struct *child)
+{
+	*(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) &= ~EXR_TRACE;
+}
+
+/* enable singlestep */
+void h8300_enable_trace(struct task_struct *child)
+{
+	*(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) |= EXR_TRACE;
+}
+
+asmlinkage void trace_trap(unsigned long bp)
+{
+	(void)bp;
+	force_sig(SIGTRAP,current);
+}
+