Linux-2.6.12-rc2v2.6.12-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!

13 files changed, 1526 insertions, 0 deletions

diff --git a/arch/h8300/platform/h8s/Makefile b/arch/h8300/platform/h8s/Makefile
new file mode 100644
index 0000000..0847b15
--- /dev/null
+++ b/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
diff --git a/arch/h8300/platform/h8s/edosk2674/Makefile b/arch/h8300/platform/h8s/edosk2674/Makefile
new file mode 100644
index 0000000..f763654
--- /dev/null
+++ b/arch/h8300/platform/h8s/edosk2674/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y := crt0_$(MODEL).o
+obj-y := timer.o
diff --git a/arch/h8300/platform/h8s/edosk2674/crt0_ram.S b/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
new file mode 100644
index 0000000..8105dc1
--- /dev/null
+++ b/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)
diff --git a/arch/h8300/platform/h8s/edosk2674/crt0_rom.S b/arch/h8300/platform/h8s/edosk2674/crt0_rom.S
new file mode 100644
index 0000000..65748bf
--- /dev/null
+++ b/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
diff --git a/arch/h8300/platform/h8s/edosk2674/timer.c b/arch/h8300/platform/h8s/edosk2674/timer.c
new file mode 100644
index 0000000..9441a4f
--- /dev/null
+++ b/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;
+}
diff --git a/arch/h8300/platform/h8s/entry.S b/arch/h8300/platform/h8s/entry.S
new file mode 100644
index 0000000..a7a53c8
--- /dev/null
+++ b/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	
diff --git a/arch/h8300/platform/h8s/generic/Makefile b/arch/h8300/platform/h8s/generic/Makefile
new file mode 100644
index 0000000..055d53a
--- /dev/null
+++ b/arch/h8300/platform/h8s/generic/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y =  crt0_$(MODEL).o
+obj-y := timer.o
diff --git a/arch/h8300/platform/h8s/generic/crt0_ram.S b/arch/h8300/platform/h8s/generic/crt0_ram.S
new file mode 100644
index 0000000..86f4501
--- /dev/null
+++ b/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)
diff --git a/arch/h8300/platform/h8s/generic/crt0_rom.S b/arch/h8300/platform/h8s/generic/crt0_rom.S
new file mode 100644
index 0000000..e18e412
--- /dev/null
+++ b/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
diff --git a/arch/h8300/platform/h8s/generic/timer.c b/arch/h8300/platform/h8s/generic/timer.c
new file mode 100644
index 0000000..633cd8e
--- /dev/null
+++ b/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;
+}
diff --git a/arch/h8300/platform/h8s/ints.c b/arch/h8300/platform/h8s/ints.c
new file mode 100644
index 0000000..5441cdd
--- /dev/null
+++ b/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);
diff --git a/arch/h8300/platform/h8s/ints_h8s.c b/arch/h8300/platform/h8s/ints_h8s.c
new file mode 100644
index 0000000..f53de49
--- /dev/null
+++ b/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);
+	}
+}
diff --git a/arch/h8300/platform/h8s/ptrace_h8s.c b/arch/h8300/platform/h8s/ptrace_h8s.c
new file mode 100644
index 0000000..e8cd46f
--- /dev/null
+++ b/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);
+}
+