diff options
Diffstat (limited to 'cpu/coldfire/start.S')
| -rw-r--r-- | cpu/coldfire/start.S | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/cpu/coldfire/start.S b/cpu/coldfire/start.S deleted file mode 100644 index 4454223..0000000 --- a/cpu/coldfire/start.S +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> - * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> - * Copyright (C) 2000-2003 Wolfgang Denk <wd@denx.de> - * Coldfire contribution by Bernhard Kuhn <bkuhn@metrowerks.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <config.h> -#include "version.h" - -#ifndef CONFIG_IDENT_STRING -#define CONFIG_IDENT_STRING "" -#endif - -#define MCF_MBAR 0x10000000 -#define MEM_BUILTIN_ADDR 0x20000000 -#define MEM_BUILTIN_SIZE 0x1000 -#define DRAM_ADDR 0x0 -#define DRAM_SIZE 0x400000 - - .text - - .globl _start -_start: - nop - nop - move.w #0x2700,%sr - - move.l #0, %d0 - movec %d0, %VBR - -#ifdef CONFIG_M5272 - move.l #(MCF_MBAR+1), %d0 - move.c %d0, %MBAR - - move.l #(MEM_BUILTIN_ADDR+1), %d0 - movec %d0, %RAMBAR0 - - move.l #0x01000000, %d0 /* Invalidate cache cmd */ - movec %d0, %CACR /* Invalidate cache */ - move.l #0x0000c000, %d0 /* Setup cache mask */ - movec %d0, %ACR0 /* Enable cache */ - move.l #0xff00c000, %d0 /* Setup cache mask */ - movec %d0, %ACR1 /* Enable cache */ - move.l #0x80000100, %d0 /* Setup cache mask */ - movec %d0, %CACR /* Enable cache */ -#endif - - move.l #_sbss,%a0 - move.l #_ebss,%d0 -1: - clr.l (%a0)+ - cmp.l %a0,%d0 - bne.s 1b - -/* move.l #MEM_BUILTIN_ADDR+MEM_BUILTIN_SIZE, %sp */ - move.l #DRAM_ADDR+DRAM_SIZE, %sp - clr.l %sp@- - - jsr board_init_f - - .globl exception_handler -exception_handler: - move.w #0x2700,%sr - lea %sp@(-60),%sp - movem.l %d0-%d7/%a0-%a6,%sp@ - jsr do_exception - movem.l %sp@,%d0-%d7/%a0-%a6 - lea %sp@(60),%sp - rte - - .globl buserror_handler -buserror_handler: - move.w #0x2700,%sr - lea %sp@(-60),%sp - movem.l %d0-%d7/%a0-%a6,%sp@ - jsr do_buserror - movem.l %sp@,%d0-%d7/%a0-%a6 - lea %sp@(60),%sp - rte - - .globl addresserror_handler -addresserror_handler: - move.w #0x2700,%sr - lea %sp@(-60),%sp - movem.l %d0-%d7/%a0-%a6,%sp@ - jsr do_buserror - movem.l %sp@,%d0-%d7/%a0-%a6 - lea %sp@(60),%sp - rte - - .globl get_endaddr -get_endaddr: - movel #_end,%d0 - rts - -#ifdef CONFIG_M5272 - .globl icache_enable -icache_enable: - move.l #0x01000000, %d0 /* Invalidate cache cmd */ - movec %d0, %CACR /* Invalidate cache */ - move.l #0x0000c000, %d0 /* Setup cache mask */ - movec %d0, %ACR0 /* Enable cache */ - move.l #0xff00c000, %d0 /* Setup cache mask */ - movec %d0, %ACR1 /* Enable cache */ - move.l #0x80000100, %d0 /* Setup cache mask */ - movec %d0, %CACR /* Enable cache */ - moveq #1, %d0 - move.l %d0, icache_state - rts - - .globl icache_disable -icache_disable: - move.l #0x00000100, %d0 /* Setup cache mask */ - movec %d0, %CACR /* Enable cache */ - clr.l %d0 /* Setup cache mask */ - movec %d0, %ACR0 /* Enable cache */ - movec %d0, %ACR1 /* Enable cache */ - moveq #0, %d0 - move.l %d0, icache_state - rts -#endif - -#ifdef CONFIG_M5282 - .globl icache_enable -icache_enable: - rts - - .globl icache_disable -icache_disable: - rts -#endif - - .globl icache_status -icache_status: - move.l icache_state, %d0 - rts - - .data -icache_state: - .long 1 - - .globl version_string -version_string: - .ascii U_BOOT_VERSION - .ascii " (", __DATE__, " - ", __TIME__, ")" - .ascii CONFIG_IDENT_STRING, "\0" |