diff options
author | Tejun Heo <tj@kernel.org> | 2011-05-24 09:59:36 +0200 |
---|---|---|
committer | Tejun Heo <tj@kernel.org> | 2011-05-24 09:59:36 +0200 |
commit | 6988f20fe04e9ef3aea488cb8ab57fbeb78e12f0 (patch) | |
tree | c9d7fc50a2e2147a5ca07e3096e7eeb916ad2da9 /arch/m68k/platform/68328 | |
parent | 0415b00d175e0d8945e6785aad21b5f157976ce0 (diff) | |
parent | 6ea0c34dac89611126455537552cffe6c7e832ad (diff) |
Merge branch 'fixes-2.6.39' into for-2.6.40
Diffstat (limited to 'arch/m68k/platform/68328')
-rw-r--r-- | arch/m68k/platform/68328/Makefile | 22 | ||||
-rw-r--r-- | arch/m68k/platform/68328/bootlogo.h | 270 | ||||
-rw-r--r-- | arch/m68k/platform/68328/bootlogo.pl | 10 | ||||
-rw-r--r-- | arch/m68k/platform/68328/config.c | 52 | ||||
-rw-r--r-- | arch/m68k/platform/68328/entry.S | 263 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-de2.S | 128 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-pilot.S | 222 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-ram.S | 141 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-rom.S | 110 | ||||
-rw-r--r-- | arch/m68k/platform/68328/ints.c | 186 | ||||
-rw-r--r-- | arch/m68k/platform/68328/romvec.S | 35 | ||||
-rw-r--r-- | arch/m68k/platform/68328/timers.c | 134 |
12 files changed, 1573 insertions, 0 deletions
diff --git a/arch/m68k/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile new file mode 100644 index 00000000000..5e5435552d5 --- /dev/null +++ b/arch/m68k/platform/68328/Makefile @@ -0,0 +1,22 @@ +# +# Makefile for arch/m68knommu/platform/68328. +# + +head-y = head-$(MODEL).o +head-$(CONFIG_PILOT) = head-pilot.o +head-$(CONFIG_DRAGEN2) = head-de2.o + +obj-y += entry.o ints.o timers.o +obj-$(CONFIG_M68328) += config.o +obj-$(CONFIG_ROM) += romvec.o + +extra-y := head.o +extra-$(CONFIG_M68328) += bootlogo.rh head.o + +$(obj)/bootlogo.rh: $(src)/bootlogo.h + perl $(src)/bootlogo.pl < $(src)/bootlogo.h > $(obj)/bootlogo.rh + +$(obj)/head.o: $(obj)/$(head-y) + ln -sf $(head-y) $(obj)/head.o + +clean-files := $(obj)/bootlogo.rh $(obj)/head.o $(head-y) diff --git a/arch/m68k/platform/68328/bootlogo.h b/arch/m68k/platform/68328/bootlogo.h new file mode 100644 index 00000000000..67bc2c17386 --- /dev/null +++ b/arch/m68k/platform/68328/bootlogo.h @@ -0,0 +1,270 @@ +#define bootlogo_width 160 +#define bootlogo_height 160 +static unsigned char bootlogo_bits[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x01, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x40, 0x55, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x55, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x10, 0x02, 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/dev/null +++ b/arch/m68k/platform/68328/bootlogo.pl @@ -0,0 +1,10 @@ + +$_ = join("", <>); + +s/(0x[0-9a-f]{2})/sprintf("0x%.2x",ord(pack("b8",unpack("B8",chr(hex($1))))))/gei; + +s/^ / .byte /gm; +s/[,};]+$//gm; +s/^static.*//gm; + +print $_; diff --git a/arch/m68k/platform/68328/config.c b/arch/m68k/platform/68328/config.c new file mode 100644 index 00000000000..a7bd21deb00 --- /dev/null +++ b/arch/m68k/platform/68328/config.c @@ -0,0 +1,52 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/68328/config.c + * + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * + * 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. + * + * VZ Support/Fixes Evan Stawnyczy <e@lineo.ca> + */ + +/***************************************************************************/ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/system.h> +#include <asm/machdep.h> +#include <asm/MC68328.h> + +/***************************************************************************/ + +void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); + +/***************************************************************************/ + +void m68328_reset (void) +{ + local_irq_disable(); + asm volatile ("moveal #0x10c00000, %a0;\n\t" + "moveb #0, 0xFFFFF300;\n\t" + "moveal 0(%a0), %sp;\n\t" + "moveal 4(%a0), %a0;\n\t" + "jmp (%a0);"); +} + +/***************************************************************************/ + +void config_BSP(char *command, int len) +{ + printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); + printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); + printk(KERN_INFO "68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); + + mach_gettod = m68328_timer_gettod; + mach_reset = m68328_reset; +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S new file mode 100644 index 00000000000..676960cf022 --- /dev/null +++ b/arch/m68k/platform/68328/entry.S @@ -0,0 +1,263 @@ +/* + * linux/arch/m68knommu/platform/68328/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + */ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <asm/thread_info.h> +#include <asm/unistd.h> +#include <asm/errno.h> +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/traps.h> +#include <asm/asm-offsets.h> +#include <asm/entry.h> + +.text + +.globl system_call +.globl resume +.globl ret_from_exception +.globl ret_from_signal +.globl sys_call_table +.globl ret_from_interrupt +.globl bad_interrupt +.globl inthandler1 +.globl inthandler2 +.globl inthandler3 +.globl inthandler4 +.globl inthandler5 +.globl inthandler6 +.globl inthandler7 + +badsys: + movel #-ENOSYS,%sp@(PT_OFF_D0) + jra ret_from_exception + +do_trace: + movel #-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/ + subql #4,%sp + SAVE_SWITCH_STACK + jbsr syscall_trace_enter + RESTORE_SWITCH_STACK + addql #4,%sp + movel %sp@(PT_OFF_ORIG_D0),%d1 + movel #-ENOSYS,%d0 + cmpl #NR_syscalls,%d1 + jcc 1f + lsl #2,%d1 + lea sys_call_table, %a0 + jbsr %a0@(%d1) + +1: movel %d0,%sp@(PT_OFF_D0) /* save the return value */ + subql #4,%sp /* dummy return address */ + SAVE_SWITCH_STACK + jbsr syscall_trace_leave + +ret_from_signal: + RESTORE_SWITCH_STACK + addql #4,%sp + jra ret_from_exception + +ENTRY(system_call) + SAVE_ALL + + /* save top of frame*/ + pea %sp@ + jbsr set_esp0 + addql #4,%sp + + movel %sp@(PT_OFF_ORIG_D0),%d0 + + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 + movel %d1,%a2 + btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) + jne do_trace + cmpl #NR_syscalls,%d0 + jcc badsys + lsl #2,%d0 + lea sys_call_table,%a0 + movel %a0@(%d0), %a0 + jbsr %a0@ + movel %d0,%sp@(PT_OFF_D0) /* save the return value*/ + +ret_from_exception: + btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel*/ + jeq Luser_return /* if so, skip resched, signals*/ + +Lkernel_return: + RESTORE_ALL + +Luser_return: + /* only allow interrupts when we are really the last one on the*/ + /* kernel stack, otherwise stack overflow can occur during*/ + /* heavy interrupt load*/ + andw #ALLOWINT,%sr + + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 + movel %d1,%a2 +1: + move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ + jne Lwork_to_do + RESTORE_ALL + +Lwork_to_do: + movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ + btst #TIF_NEED_RESCHED,%d1 + jne reschedule + +Lsignal_return: + subql #4,%sp /* dummy return address*/ + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + bsrw do_signal + addql #4,%sp + RESTORE_SWITCH_STACK + addql #4,%sp + jra 1b + +/* + * This is the main interrupt handler, responsible for calling process_int() + */ +inthandler1: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #65,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler2: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #66,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler3: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #67,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler4: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #68,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler5: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #69,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler6: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #70,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler7: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #71,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel %d0,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +ret_from_interrupt: + jeq 1f +2: + RESTORE_ALL +1: + moveb %sp@(PT_OFF_SR), %d0 + and #7, %d0 + jhi 2b + + /* check if we need to do software interrupts */ + jeq ret_from_exception + + pea ret_from_exception + jra do_softirq + + +/* + * Handler for uninitialized and spurious interrupts. + */ +ENTRY(bad_interrupt) + addql #1,num_spurious + rte + +/* + * Beware - when entering resume, prev (the current task) is + * in a0, next (the new task) is in a1,so don't change these + * registers until their contents are no longer needed. + */ +ENTRY(resume) + movel %a0,%d1 /* save prev thread in d1 */ + movew %sr,%a0@(TASK_THREAD+THREAD_SR) /* save sr */ + movel %usp,%a2 /* save usp */ + movel %a2,%a0@(TASK_THREAD+THREAD_USP) + + SAVE_SWITCH_STACK + movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack */ + movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ + RESTORE_SWITCH_STACK + + movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore user stack */ + movel %a0,%usp + movew %a1@(TASK_THREAD+THREAD_SR),%sr /* restore thread status reg */ + rts + diff --git a/arch/m68k/platform/68328/head-de2.S b/arch/m68k/platform/68328/head-de2.S new file mode 100644 index 00000000000..f632fdcb93e --- /dev/null +++ b/arch/m68k/platform/68328/head-de2.S @@ -0,0 +1,128 @@ + +#define MEM_END 0x00800000 /* Memory size 8Mb */ + +#undef CRT_DEBUG + +.macro PUTC CHAR +#ifdef CRT_DEBUG + moveq #\CHAR, %d7 + jsr putc +#endif +.endm + + .global _start + .global _rambase + .global _ramvec + .global _ramstart + .global _ramend + + .data + +/* + * Set up the usable of RAM stuff + */ +_rambase: + .long 0 +_ramvec: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 + + .text + +_start: + +/* + * Setup initial stack + */ + /* disable all interrupts */ + movew #0x2700, %sr + movel #-1, 0xfffff304 + movel #MEM_END-4, %sp + + PUTC '\r' + PUTC '\n' + PUTC 'A' + PUTC 'B' + +/* + * Determine end of RAM + */ + + movel #MEM_END, %a0 + movel %a0, _ramend + + PUTC 'C' + +/* + * Move ROM filesystem above bss :-) + */ + + moveal #_sbss, %a0 /* romfs at the start of bss */ + moveal #_ebss, %a1 /* Set up destination */ + movel %a0, %a2 /* Copy of bss start */ + + movel 8(%a0), %d1 /* Get size of ROMFS */ + addql #8, %d1 /* Allow for rounding */ + andl #0xfffffffc, %d1 /* Whole words */ + + addl %d1, %a0 /* Copy from end */ + addl %d1, %a1 /* Copy from end */ + movel %a1, _ramstart /* Set start of ram */ + +1: + movel -(%a0), %d0 /* Copy dword */ + movel %d0, -(%a1) + cmpl %a0, %a2 /* Check if at end */ + bne 1b + + PUTC 'D' + +/* + * Initialize BSS segment to 0 + */ + + lea _sbss, %a0 + lea _ebss, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +2: cmpal %a0, %a1 + beq 1f + clrl (%a0)+ + bra 2b +1: + + PUTC 'E' + +/* + * Load the current task pointer and stack + */ + + lea init_thread_union, %a0 + lea 0x2000(%a0), %sp + + PUTC 'F' + PUTC '\r' + PUTC '\n' + +/* + * Go + */ + + jmp start_kernel + +/* + * Local functions + */ + +#ifdef CRT_DEBUG +putc: + moveb %d7, 0xfffff907 +1: + movew 0xfffff906, %d7 + andw #0x2000, %d7 + beq 1b + rts +#endif diff --git a/arch/m68k/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S new file mode 100644 index 00000000000..aecff532b34 --- /dev/null +++ b/arch/m68k/platform/68328/head-pilot.S @@ -0,0 +1,222 @@ +/* + * linux/arch/m68knommu/platform/68328/head-pilot.S + * - A startup file for the MC68328 + * + * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * + * (c) 1995, Dionne & Associates + * (c) 1995, DKG Display Tech. + */ + +#define ASSEMBLY + +#define IMMED # +#define DBG_PUTC(x) moveb IMMED x, 0xfffff907 + + +.global _stext +.global _start + +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +.global penguin_bits + +#ifdef CONFIG_PILOT + +#define IMR 0xFFFFF304 + + .data + .align 16 + +penguin_bits: +#include "bootlogo.rh" + +#endif + +/*****************************************************************************/ + +.data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ +.align 4 +_ramvec: +.long 0 +_rambase: +.long 0 +_ramstart: +.long 0 +_ramend: +.long 0 + +.text + +_start: +_stext: + + +#ifdef CONFIG_M68328 + +#ifdef CONFIG_PILOT + .byte 0x4e, 0xfa, 0x00, 0x0a /* Jmp +X bytes */ + .byte 'b', 'o', 'o', 't' + .word 10000 + + nop +#endif + + moveq #0, %d0 + movew %d0, 0xfffff618 /* Watchdog off */ + movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ + + movew #0x0800, 0xfffff906 /* Ignore CTS */ + movew #0x010b, 0xfffff902 /* BAUD to 9600 */ + + movew #0x2410, 0xfffff200 /* PLLCR */ + movew #0x123, 0xfffff202 /* PLLFSR */ + +#ifdef CONFIG_PILOT + moveb #0, 0xfffffA27 /* LCKCON */ + movel #_start, 0xfffffA00 /* LSSA */ + moveb #0xa, 0xfffffA05 /* LVPW */ + movew #0x9f, 0xFFFFFa08 /* LXMAX */ + movew #0x9f, 0xFFFFFa0a /* LYMAX */ + moveb #9, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0 |