H8S architecture support
-- Yoshinori Sato <ysato@users.sourceforge.jp>diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/Makefile linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/Makefile --- linux-2.6.0-test2/arch/h8300/platform/h8s/Makefile 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/Makefile 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,22 @@ +# +# Makefile for the linux kernel. +# +# Reuse any files we can from the H8S +# + +#VPATH := $(VPATH):$(BOARD) + +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# +.S.o: + $(CC) -D__ASSEMBLY__ $(AFLAGS) -I. -c $< -o $*.o + +obj-y := entry.o ints.o + +$(BOARD)/crt0_$(MODEL).o: $(BOARD)/crt0_$(MODEL).S + +entry.o: entry.S + +ints.o: ints.c diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/Makefile linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/Makefile --- linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/Makefile 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/Makefile 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,15 @@ +# +# Makefile for the linux kernel. +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# + +extra-y := crt0_ram.o +obj-y := timer.o + +timer.o: timer.c + +clean: + rm -f *.[oa] diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/crt0_ram.S linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/crt0_ram.S --- linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/crt0_ram.S 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/crt0_ram.S 2003-07-28 12:40:08.000000000 +0900 @@ -0,0 +1,130 @@ +/* + * 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 #0x07,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_BLK_DEV_BLKMEM) + /* 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 #0x10,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 -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/crt0_rom.S linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/crt0_rom.S --- linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/crt0_rom.S 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/crt0_rom.S 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,186 @@ +/* + * 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 + +__target_name: + .asciz "EDOSK-2674" + + .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 -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/ram.ld linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/ram.ld --- linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/ram.ld 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/ram.ld 2003-07-28 12:40:08.000000000 +0900 @@ -0,0 +1,10 @@ +/* EDOSK-2674R RAM */ + +OUTPUT_ARCH(h8300s) +ENTRY("__start") + +MEMORY + { + ram : ORIGIN = 0x400000, LENGTH = 0xc00000-0x400000 + eram : ORIGIN = 0xc00000, LENGTH = 0 + } diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/rom.ld linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/rom.ld --- linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/rom.ld 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/rom.ld 2003-07-28 12:40:08.000000000 +0900 @@ -0,0 +1,11 @@ +OUTPUT_ARCH(h8300s) +ENTRY("__start") + +MEMORY + { + vector : ORIGIN = 0x000000, LENGTH = 0x000200 + rom : ORIGIN = 0x000200, LENGTH = 0x100000-0x000200 + erom : ORIGIN = 0x100000, LENGTH = 0 + ram : ORIGIN = 0x400000, LENGTH = 0xc00000-0x400000 + eram : ORIGIN = 0xc00000, LENGTH = 0 + } diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/timer.c linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/timer.c --- linux-2.6.0-test2/arch/h8300/platform/h8s/edosk2674/timer.c 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/edosk2674/timer.c 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,56 @@ +/* + * 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 REGS(regs) __REGS(regs) +#define __REGS(regs) #regs + +extern int request_irq_boot(unsigned int, + irqreturn_t (*handler)(int, void *, struct pt_regs *), + unsigned long, const char *, void *); + +int __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *)) +{ + unsigned char mstpcrl; + mstpcrl = inb(MSTPCRL); /* Enable timer */ + mstpcrl &= ~0x01; + outb(mstpcrl,MSTPCRL); + outb(H8300_TIMER_COUNT_DATA,_8TCORA1); + outb(0x00,_8TCSR1); + request_irq_boot(76,timer_int,0,"timer",0); + outb(0x40|0x08|0x03,_8TCR1); + return 0; +} + +void platform_timer_eoi(void) +{ + __asm__("bclr #6,@" REGS(_8TCSR1) ":8"); +} + +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 -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/entry.S linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/entry.S --- linux-2.6.0-test2/arch/h8300/platform/h8s/entry.S 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/entry.S 2003-07-28 12:40:08.000000000 +0900 @@ -0,0 +1,335 @@ +/* -*- 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> + +ENOSYS = 38 + +LSIGTRAP = 5 + +SOFTIRQ_PENDING = 0 + +/* the following macro is used when enabling interrupts */ + +LER4 = 0 +LER5 = 4 +LER6 = 8 +LER3 = 12 +LER2 = 16 +LER1 = 20 +LORIG = 24 +LCCR = 28 +LER0 = 30 +LVEC = 34 +LEXR = 38 +LRET = 40 + + .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.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-LORIG),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_signal) +.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(syscall_trampoline) +.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)+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,sp) /* save the return value */ +#if defined(CONFIG_SYSCALL_PRINT) + jsr @SYMBOL_NAME(syscall_print) +#endif + jmp @SYMBOL_NAME(ret_from_exception) +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) + +SYMBOL_NAME_LABEL(ret_from_signal) + +SYMBOL_NAME_LABEL(ret_from_exception) + mov.b @(LCCR+1:16,sp),r0l + btst #4,r0l /* check if returning to kernel */ + bne 3f /* if so, skip resched, signals */ + andc #0x7f,ccr + mov.l sp,er2 + and.w #0xe000,r2 + mov.l @(TI_FLAGS:16,er2),er1 + and.l #_TIF_WORK_MASK,er1 + beq 3f +1: + mov.l @(TI_FLAGS:16,er2),er1 + btst #TIF_NEED_RESCHED,r1l + bne @SYMBOL_NAME(reschedule):16 + mov.l sp,er1 + mov.l er2,er0 + jsr @SYMBOL_NAME(do_signal) +3: + RESTORE_ALL /* Does RTE */ + +SYMBOL_NAME_LABEL(reschedule) + /* save top of frame */ + mov.l sp,er0 + jsr @SYMBOL_NAME(set_esp0) + + mov.l #SYMBOL_NAME(ret_from_exception),er0 + mov.l er0,@-sp + jmp @SYMBOL_NAME(schedule) + +SYMBOL_NAME_LABEL(ret_from_fork) + mov.l er2,er0 + jsr @SYMBOL_NAME(schedule_tail) + jmp @SYMBOL_NAME_LABEL(ret_from_exception) + + +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) + +SYMBOL_NAME_LABEL(syscall_trampoline) + mov.l er0,er6 + mov.l sp,er0 + jmp @er6 + + .section .bss +SYMBOL_NAME_LABEL(sw_ksp) + .space 4 +SYMBOL_NAME_LABEL(sw_usp) + .space 4 diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/generic/Makefile linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/Makefile --- linux-2.6.0-test2/arch/h8300/platform/h8s/generic/Makefile 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/Makefile 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,15 @@ +# +# Makefile for the linux kernel. +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# + +extra-y = crt0_$(MODEL).o +obj-y := timer.o + +timer.o: timer.c + +clean: + rm -f *.[oa] diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/generic/crt0_ram.S linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/crt0_ram.S --- linux-2.6.0-test2/arch/h8300/platform/h8s/generic/crt0_ram.S 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/crt0_ram.S 2003-07-28 12:40:08.000000000 +0900 @@ -0,0 +1,127 @@ +/* + * 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 #0x07,exr + + /* Peripheral Setup */ + bclr #4,@INTCR:8 /* interrupt mode 2 */ + bset #5,@INTCR:8 + +#if defined(CONFIG_BLK_DEV_BLKMEM) + /* 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 #0x10,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 -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/generic/crt0_rom.S linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/crt0_rom.S --- linux-2.6.0-test2/arch/h8300/platform/h8s/generic/crt0_rom.S 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/crt0_rom.S 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,132 @@ +/* + * 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 */ + + /* .bss clear */ + mov.l #__sbss,er5 + mov.l er5,er6 + inc.l #1,er6 + mov.l #__ebss,er4 + sub.l er5,er4 + sub.w r0,r0 + mov.b r0l,@er5 +1: + eepmov.w + dec.w #1,e4 + bpl 1b + + /* copy .data */ +#if !defined(CONFIG_H8S_SIM) + mov.l #__begin_data,er5 + mov.l #__sdata,er6 + mov.l #__edata,er4 + sub.l er6,er4 +1: + eepmov.w + dec.w #1,e4 + bpl 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 + ;; 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 .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 -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/generic/ram.ld linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/ram.ld --- linux-2.6.0-test2/arch/h8300/platform/h8s/generic/ram.ld 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/ram.ld 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,8 @@ +OUTPUT_ARCH(h8300s) +ENTRY("__start") + +MEMORY + { + ram : ORIGIN = 0x400000, LENGTH = 0x200000 + eram : ORIGIN = 0x600000, LENGTH = 0 + } diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/generic/rom.ld linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/rom.ld --- linux-2.6.0-test2/arch/h8300/platform/h8s/generic/rom.ld 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/rom.ld 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,11 @@ +OUTPUT_ARCH(h8300s) +ENTRY("__start") + +MEMORY + { + vector : ORIGIN = 0x000000, LENGTH = 0x000200 + rom : ORIGIN = 0x000200, LENGTH = 0x200000-0x000200 + erom : ORIGIN = 0x200000, LENGTH = 0 + ram : ORIGIN = 0x200000, LENGTH = 0x200000 + eram : ORIGIN = 0x400000, LENGTH = 0 + } diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/generic/timer.c linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/timer.c --- linux-2.6.0-test2/arch/h8300/platform/h8s/generic/timer.c 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/generic/timer.c 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,48 @@ +/* + * 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> + +extern int request_irq_boot(unsigned int, + irqreturn_t (*handler)(int, void *, struct pt_regs *), + unsigned long, const char *, void *); + +int platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *)) +{ + outb(H8300_TIMER_COUNT_DATA,_8TCORA1); + outb(0x00,_8TCSR1); + request_irq_boot(76,timer_int,0,"timer",0); + outb(0x40|0x08|0x03,_8TCR1); + return 0; +} + +void platform_timer_eoi(void) +{ + __asm__("bclr #6,@0xffffb3:8"); +} + +void platform_gettod(int *year, int *mon, int *day, int *hour, + int *min, int *sec) +{ + *year = *mon = *day = *hour = *min = *sec = 0; +} diff -Nru linux-2.6.0-test2/arch/h8300/platform/h8s/ints.c linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/ints.c --- linux-2.6.0-test2/arch/h8300/platform/h8s/ints.c 1970-01-01 09:00:00.000000000 +0900 +++ linux-2.6.0-test2-h8300/arch/h8300/platform/h8s/ints.c 2003-07-20 01:16:06.000000000 +0900 @@ -0,0 +1,308 @@ +/* + * linux/arch/h8300/platform/h8sh/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/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/slab.h> +#include <linux/bootmem.h> +#include <linux/random.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/hardirq.h> +#include <asm/regs267x.h> +#include <asm/errno.h> + +#define EXT_IRQ0 16 +#define EXT_IRQ1 17 +#define EXT_IRQ2 18 +#define EXT_IRQ3 19 +#define EXT_IRQ4 20 +#define EXT_IRQ5 21 +#define EXT_IRQ6 22 +#define EXT_IRQ7 23 +#define EXT_IRQ8 24 +#define EXT_IRQ9 25 +#define EXT_IRQ10 26 +#define EXT_IRQ11 27 +#define EXT_IRQ12 28 +#define EXT_IRQ13 29 +#define EXT_IRQ14 30 +#define EXT_IRQ15 31 + +/* + * 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}, +}; + +extern unsigned long *interrupt_redirect_table; + +static inline unsigned long *get_vector_address(void) +{ + volatile unsigned long *rom_vector = (unsigned long *)0x000000; + unsigned long base,tmp; + int vec_no; + + base = rom_vector[EXT_IRQ0]; + + /* 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]) + 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 +} + +/* special request_irq */ +/* used bootmem allocater */ +void __init request_irq_boot(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; + irq_handle = alloc_bootmem(sizeof(irq_handler_t)); + 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; +} + +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 */ + } + irq_handle = (irq_handler_t *)kmalloc(sizeof(irq_handler_t), GFP_ATOMIC); + 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; +} + +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); + } + kfree(irq_list[irq]); + irq_list[irq] = NULL; +} + +unsigned long probe_irq_on (void) +{ + return 0; +} + +int probe_irq_off (unsigned long irqs) +{ + return 0; +} + +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; + + for (i = 0; i < NR_IRQS; i++) { + if (irq_list[i]) { + 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) +{ +} - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Jul 31 2003 - 22:00:36 EST