[people/ms/u-boot.git] / arch / m68k / cpu / mcf532x / start.S

/*
 * Copyright (C) 2003	Josef Baumgartner <josef.baumgartner@telex.de>
 * Based on code from Bernhard Kuhn <bkuhn@metrowerks.com>
 *
 * (C) Copyright 2004-2008 Freescale Semiconductor, Inc.
 * TsiChung Liew (Tsi-Chung.Liew@freescale.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 <asm-offsets.h>
#include <config.h>
#include <timestamp.h>
#include "version.h"
#include <asm/cache.h>

#ifndef	 CONFIG_IDENT_STRING
#define	 CONFIG_IDENT_STRING ""
#endif

#define _START	_start
#define _FAULT	_fault

#define SAVE_ALL						\
	move.w	#0x2700,%sr;		/* disable intrs */	\
	subl	#60,%sp;		/* space for 15 regs */ \
	moveml	%d0-%d7/%a0-%a6,%sp@;

#define RESTORE_ALL						\
	moveml	%sp@,%d0-%d7/%a0-%a6;				\
	addl	#60,%sp;		/* space for 15 regs */ \
	rte;

#if !defined(CONFIG_MONITOR_IS_IN_RAM)
.text
/*
 *	Vector table. This is used for initial platform startup.
 *	These vectors are to catch any un-intended traps.
 */
_vectors:

INITSP:		.long	0x00000000	/* Initial SP	*/
INITPC:		.long	_START	/* Initial PC		*/
vector02:	.long	_FAULT	/* Access Error		*/
vector03:	.long	_FAULT	/* Address Error	*/
vector04:	.long	_FAULT	/* Illegal Instruction	*/
vector05:	.long	_FAULT	/* Reserved		*/
vector06:	.long	_FAULT	/* Reserved		*/
vector07:	.long	_FAULT	/* Reserved		*/
vector08:	.long	_FAULT	/* Privilege Violation	*/
vector09:	.long	_FAULT	/* Trace		*/
vector0A:	.long	_FAULT	/* Unimplemented A-Line	*/
vector0B:	.long	_FAULT	/* Unimplemented F-Line	*/
vector0C:	.long	_FAULT	/* Debug Interrupt	*/
vector0D:	.long	_FAULT	/* Reserved		*/
vector0E:	.long	_FAULT	/* Format Error		*/
vector0F:	.long	_FAULT	/* Unitialized Int.	*/

/* Reserved */
vector10_17:
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT

vector18:	.long	_FAULT	/* Spurious Interrupt	*/
vector19:	.long	_FAULT	/* Autovector Level 1	*/
vector1A:	.long	_FAULT	/* Autovector Level 2	*/
vector1B:	.long	_FAULT	/* Autovector Level 3	*/
vector1C:	.long	_FAULT	/* Autovector Level 4	*/
vector1D:	.long	_FAULT	/* Autovector Level 5	*/
vector1E:	.long	_FAULT	/* Autovector Level 6	*/
vector1F:	.long	_FAULT	/* Autovector Level 7	*/

/* TRAP #0 - #15 */
vector20_2F:
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT

/* Reserved	*/
vector30_3F:
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT

vector64_127:
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT

vector128_191:
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT

vector192_255:
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
#endif /* !defined(CONFIG_MONITOR_IS_IN_RAM) */

	.text

	.globl	_start
_start:
	nop
	nop
	move.w #0x2700,%sr	/* Mask off Interrupt */

#if !defined(CONFIG_MONITOR_IS_IN_RAM)
	/* Set vector base register at the beginning of the Flash */
	move.l	#CONFIG_SYS_FLASH_BASE, %d0
	movec	%d0, %VBR
#endif

	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
	movec	%d0, %RAMBAR1

	/* invalidate and disable cache */
	move.l	#CF_CACR_CINVA, %d0		/* Invalidate cache cmd */
	movec	%d0, %CACR			/* Invalidate cache */
	move.l	#0, %d0
	movec	%d0, %ACR0
	movec	%d0, %ACR1

#ifdef CONFIG_MCF5301x
	move.l	#(0xFC0a0010), %a0
	move.w	(%a0), %d0
	and.l	%d0, 0xEFFF

	move.w	%d0, (%a0)
#endif

	/* initialize general use internal ram */
	move.l #0, %d0
	move.l #(ICACHE_STATUS), %a1	/* icache */
	move.l #(DCACHE_STATUS), %a2	/* icache */
	move.l %d0, (%a1)
	move.l %d0, (%a2)

	/* set stackpointer to end of internal ram to get some stackspace for the
	   first c-code */
	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
	clr.l %sp@-

	move.l #__got_start, %a5	/* put relocation table address to a5 */

	bsr cpu_init_f			/* run low-level CPU init code (from flash) */
	bsr board_init_f		/* run low-level board init code (from flash) */

	/* board_init_f() does not return */

/*------------------------------------------------------------------------------*/

/*
 * void relocate_code (addr_sp, gd, addr_moni)
 *
 * This "function" does not return, instead it continues in RAM
 * after relocating the monitor code.
 *
 * r3 = dest
 * r4 = src
 * r5 = length in bytes
 * r6 = cachelinesize
 */
	.globl	relocate_code
relocate_code:
	link.w %a6,#0
	move.l 8(%a6), %sp		/* set new stack pointer */

	move.l 12(%a6), %d0		/* Save copy of Global Data pointer */
	move.l 16(%a6), %a0		/* Save copy of Destination Address */

	move.l #CONFIG_SYS_MONITOR_BASE, %a1
	move.l #__init_end, %a2
	move.l %a0, %a3

	/* copy the code to RAM */
1:
	move.l (%a1)+, (%a3)+
	cmp.l  %a1,%a2
	bgt.s	 1b

/*
 * We are done. Do not return, instead branch to second part of board
 * initialization, now running from RAM.
 */
	move.l	%a0, %a1
	add.l	#(in_ram - CONFIG_SYS_MONITOR_BASE), %a1
	jmp	(%a1)

in_ram:

clear_bss:
	/*
	 * Now clear BSS segment
	 */
	move.l	%a0, %a1
	add.l	#(_sbss - CONFIG_SYS_MONITOR_BASE),%a1
	move.l	%a0, %d1
	add.l	#(_ebss - CONFIG_SYS_MONITOR_BASE),%d1
6:
	clr.l	(%a1)+
	cmp.l	%a1,%d1
	bgt.s	6b

	/*
	 * fix got table in RAM
	 */
	move.l	%a0, %a1
	add.l	#(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
	move.l	%a1,%a5		/* * fix got pointer register a5 */

	move.l	%a0, %a2
	add.l	#(__got_end - CONFIG_SYS_MONITOR_BASE),%a2

7:
	move.l	(%a1),%d1
	sub.l	#_start,%d1
	add.l	%a0,%d1
	move.l	%d1,(%a1)+
	cmp.l	%a2, %a1
	bne	7b

	/* calculate relative jump to board_init_r in ram */
	move.l %a0, %a1
	add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1

	/* set parameters for board_init_r */
	move.l %a0,-(%sp)		/* dest_addr */
	move.l %d0,-(%sp)		/* gd */
	jsr	(%a1)

/*------------------------------------------------------------------------------*/
/* exception code */
	.globl _fault
_fault:
	jmp _fault
	.globl	_exc_handler

_exc_handler:
	SAVE_ALL
	movel	%sp,%sp@-
	bsr exc_handler
	addql	#4,%sp
	RESTORE_ALL

	.globl	_int_handler
_int_handler:
	SAVE_ALL
	movel	%sp,%sp@-
	bsr int_handler
	addql	#4,%sp
	RESTORE_ALL

/*------------------------------------------------------------------------------*/
	.globl	version_string
version_string:
	.ascii U_BOOT_VERSION
	.ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
	.ascii CONFIG_IDENT_STRING, "\0"
	.align 4
Commit	Line	Data
8e585f02 TL	1	/*
	2	* Copyright (C) 2003 Josef Baumgartner <josef.baumgartner@telex.de>
	3	* Based on code from Bernhard Kuhn <bkuhn@metrowerks.com>
	4	*
536e7dac TL	5	* (C) Copyright 2004-2008 Freescale Semiconductor, Inc.
	6	* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
	7	*
8e585f02 TL	8	* See file CREDITS for list of people who contributed to this
	9	* project.
	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License as
	13	* published by the Free Software Foundation; either version 2 of
	14	* the License, or (at your option) any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; if not, write to the Free Software
	23	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	24	* MA 02111-1307 USA
	25	*/
	26
25ddd1fb	27	#include <asm-offsets.h>
8e585f02	28	#include <config.h>
561858ee	29	#include <timestamp.h>
8e585f02	30	#include "version.h"
dd9f054e	31	#include <asm/cache.h>
8e585f02 TL	32
	33	#ifndef CONFIG_IDENT_STRING
	34	#define CONFIG_IDENT_STRING ""
	35	#endif
	36
	37	#define _START _start
	38	#define _FAULT _fault
	39
8e585f02 TL	40	#define SAVE_ALL \
	41	move.w #0x2700,%sr; /* disable intrs */ \
	42	subl #60,%sp; /* space for 15 regs */ \
	43	moveml %d0-%d7/%a0-%a6,%sp@;
	44
	45	#define RESTORE_ALL \
	46	moveml %sp@,%d0-%d7/%a0-%a6; \
	47	addl #60,%sp; /* space for 15 regs */ \
	48	rte;
	49
c7de810c	50	#if !defined(CONFIG_MONITOR_IS_IN_RAM)
8e585f02 TL	51	.text
	52	/*
	53	* Vector table. This is used for initial platform startup.
	54	* These vectors are to catch any un-intended traps.
	55	*/
	56	_vectors:
	57
ddd104f1	58	INITSP: .long 0x00000000 /* Initial SP */
53677ef1	59	INITPC: .long _START /* Initial PC */
ddd104f1 TL	60	vector02: .long _FAULT /* Access Error */
	61	vector03: .long _FAULT /* Address Error */
	62	vector04: .long _FAULT /* Illegal Instruction */
	63	vector05: .long _FAULT /* Reserved */
	64	vector06: .long _FAULT /* Reserved */
	65	vector07: .long _FAULT /* Reserved */
	66	vector08: .long _FAULT /* Privilege Violation */
	67	vector09: .long _FAULT /* Trace */
	68	vector0A: .long _FAULT /* Unimplemented A-Line */
	69	vector0B: .long _FAULT /* Unimplemented F-Line */
	70	vector0C: .long _FAULT /* Debug Interrupt */
	71	vector0D: .long _FAULT /* Reserved */
	72	vector0E: .long _FAULT /* Format Error */
	73	vector0F: .long _FAULT /* Unitialized Int. */
	74
	75	/* Reserved */
8e585f02 TL	76	vector10_17:
	77	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	78
ddd104f1 TL	79	vector18: .long _FAULT /* Spurious Interrupt */
	80	vector19: .long _FAULT /* Autovector Level 1 */
	81	vector1A: .long _FAULT /* Autovector Level 2 */
	82	vector1B: .long _FAULT /* Autovector Level 3 */
	83	vector1C: .long _FAULT /* Autovector Level 4 */
	84	vector1D: .long _FAULT /* Autovector Level 5 */
	85	vector1E: .long _FAULT /* Autovector Level 6 */
	86	vector1F: .long _FAULT /* Autovector Level 7 */
8e585f02 TL	87
	88	/* TRAP #0 - #15 */
	89	vector20_2F:
	90	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	91	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	92
	93	/* Reserved */
	94	vector30_3F:
	95	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	96	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	97
	98	vector64_127:
	99	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	100	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	101	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	102	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	103	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	104	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	105	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	106	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	107
	108	vector128_191:
	109	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	110	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	111	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	112	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	113	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	114	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	115	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	116	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	117
	118	vector192_255:
	119	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	120	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	121	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	122	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	123	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	124	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	125	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
	126	.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
c7de810c	127	#endif /* !defined(CONFIG_MONITOR_IS_IN_RAM) */
8e585f02 TL	128
	129	.text
	130
	131	.globl _start
	132	_start:
	133	nop
	134	nop
ddd104f1	135	move.w #0x2700,%sr /* Mask off Interrupt */
8e585f02	136
c7de810c	137	#if !defined(CONFIG_MONITOR_IS_IN_RAM)
ddd104f1	138	/* Set vector base register at the beginning of the Flash */
6d0f6bcf	139	move.l #CONFIG_SYS_FLASH_BASE, %d0
8e585f02	140	movec %d0, %VBR
c7de810c	141	#endif
8e585f02	142
6d0f6bcf	143	move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
c67e12e7	144	movec %d0, %RAMBAR1
8e585f02 TL	145
8e585f02 TL	146	/* invalidate and disable cache */
dd9f054e	147	move.l #CF_CACR_CINVA, %d0 /* Invalidate cache cmd */
8e585f02 TL	148	movec %d0, %CACR /* Invalidate cache */
	149	move.l #0, %d0
	150	movec %d0, %ACR0
	151	movec %d0, %ACR1
	152
536e7dac TL	153	#ifdef CONFIG_MCF5301x
	154	move.l #(0xFC0a0010), %a0
	155	move.w (%a0), %d0
	156	and.l %d0, 0xEFFF
	157
	158	move.w %d0, (%a0)
	159	#endif
	160
8e585f02 TL	161	/* initialize general use internal ram */
8e585f02 TL	162	move.l #0, %d0
dd9f054e TL	163	move.l #(ICACHE_STATUS), %a1 /* icache */
dd9f054e TL	164	move.l #(DCACHE_STATUS), %a2 /* icache */
8e585f02 TL	165	move.l %d0, (%a1)
	166	move.l %d0, (%a2)
	167
ddd104f1 TL	168	/* set stackpointer to end of internal ram to get some stackspace for the
ddd104f1 TL	169	first c-code */
6d0f6bcf	170	move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
8e585f02 TL	171	clr.l %sp@-
8e585f02 TL	172
ddd104f1	173	move.l #__got_start, %a5 /* put relocation table address to a5 */
8e585f02	174
ddd104f1 TL	175	bsr cpu_init_f /* run low-level CPU init code (from flash) */
ddd104f1 TL	176	bsr board_init_f /* run low-level board init code (from flash) */
8e585f02 TL	177
	178	/* board_init_f() does not return */
	179
	180	/------------------------------------------------------------------------------/
	181
	182	/*
	183	* void relocate_code (addr_sp, gd, addr_moni)
	184	*
	185	* This "function" does not return, instead it continues in RAM
	186	* after relocating the monitor code.
	187	*
	188	* r3 = dest
	189	* r4 = src
	190	* r5 = length in bytes
	191	* r6 = cachelinesize
	192	*/
	193	.globl relocate_code
	194	relocate_code:
	195	link.w %a6,#0
	196	move.l 8(%a6), %sp /* set new stack pointer */
	197
	198	move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
	199	move.l 16(%a6), %a0 /* Save copy of Destination Address */
	200
6d0f6bcf	201	move.l #CONFIG_SYS_MONITOR_BASE, %a1
8e585f02 TL	202	move.l #__init_end, %a2
	203	move.l %a0, %a3
	204
	205	/* copy the code to RAM */
	206	1:
	207	move.l (%a1)+, (%a3)+
	208	cmp.l %a1,%a2
	209	bgt.s 1b
	210
	211	/*
	212	* We are done. Do not return, instead branch to second part of board
	213	* initialization, now running from RAM.
	214	*/
	215	move.l %a0, %a1
6d0f6bcf	216	add.l #(in_ram - CONFIG_SYS_MONITOR_BASE), %a1
8e585f02 TL	217	jmp (%a1)
	218
	219	in_ram:
	220
	221	clear_bss:
	222	/*
	223	* Now clear BSS segment
	224	*/
	225	move.l %a0, %a1
6d0f6bcf	226	add.l #(_sbss - CONFIG_SYS_MONITOR_BASE),%a1
8e585f02	227	move.l %a0, %d1
6d0f6bcf	228	add.l #(_ebss - CONFIG_SYS_MONITOR_BASE),%d1
8e585f02 TL	229	6:
	230	clr.l (%a1)+
	231	cmp.l %a1,%d1
	232	bgt.s 6b
	233
	234	/*
	235	* fix got table in RAM
	236	*/
	237	move.l %a0, %a1
6d0f6bcf	238	add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
8e585f02 TL	239	move.l %a1,%a5 /* * fix got pointer register a5 */
	240
	241	move.l %a0, %a2
6d0f6bcf	242	add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
8e585f02 TL	243
	244	7:
	245	move.l (%a1),%d1
	246	sub.l #_start,%d1
	247	add.l %a0,%d1
	248	move.l %d1,(%a1)+
	249	cmp.l %a2, %a1
	250	bne 7b
	251
	252	/* calculate relative jump to board_init_r in ram */
	253	move.l %a0, %a1
6d0f6bcf	254	add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
8e585f02 TL	255
	256	/* set parameters for board_init_r */
	257	move.l %a0,-(%sp) /* dest_addr */
	258	move.l %d0,-(%sp) /* gd */
	259	jsr (%a1)
	260
	261	/------------------------------------------------------------------------------/
	262	/* exception code */
	263	.globl _fault
	264	_fault:
	265	jmp _fault
	266	.globl _exc_handler
	267
	268	_exc_handler:
	269	SAVE_ALL
	270	movel %sp,%sp@-
	271	bsr exc_handler
	272	addql #4,%sp
	273	RESTORE_ALL
	274
	275	.globl _int_handler
	276	_int_handler:
	277	SAVE_ALL
	278	movel %sp,%sp@-
	279	bsr int_handler
	280	addql #4,%sp
	281	RESTORE_ALL
	282
	283	/------------------------------------------------------------------------------/
8e585f02 TL	284	.globl version_string
	285	version_string:
	286	.ascii U_BOOT_VERSION
561858ee	287	.ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
8e585f02	288	.ascii CONFIG_IDENT_STRING, "\0"
9b46432f	289	.align 4