mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 14:10:43 +00:00
74 lines
1.7 KiB
ArmAsm
74 lines
1.7 KiB
ArmAsm
/*
|
|
* (C) Copyright 2007
|
|
* Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
|
|
*
|
|
* 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>
|
|
|
|
.text
|
|
.align 2
|
|
|
|
.global _start
|
|
_start:
|
|
mov.l ._lowlevel_init, r0
|
|
100: bsrf r0
|
|
nop
|
|
|
|
bsr 1f
|
|
nop
|
|
1: sts pr, r5
|
|
mov.l ._reloc_dst, r4
|
|
add #(_start-1b), r5
|
|
mov.l ._reloc_dst_end, r6
|
|
|
|
2: mov.l @r5+, r1
|
|
mov.l r1, @r4
|
|
add #4, r4
|
|
cmp/hs r6, r4
|
|
bf 2b
|
|
|
|
mov.l ._bss_start, r4
|
|
mov.l ._bss_end, r5
|
|
mov #0, r1
|
|
|
|
3: mov.l r1, @r4 /* bss clear */
|
|
add #4, r4
|
|
cmp/hs r5, r4
|
|
bf 3b
|
|
|
|
mov.l ._gd_init, r13 /* global data */
|
|
mov.l ._stack_init, r15 /* stack */
|
|
|
|
mov.l ._sh_generic_init, r0
|
|
jsr @r0
|
|
nop
|
|
|
|
loop:
|
|
bra loop
|
|
|
|
.align 2
|
|
|
|
._lowlevel_init: .long (lowlevel_init - (100b + 4))
|
|
._reloc_dst: .long reloc_dst
|
|
._reloc_dst_end: .long reloc_dst_end
|
|
._bss_start: .long bss_start
|
|
._bss_end: .long bss_end
|
|
._gd_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE)
|
|
._stack_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
|
|
._sh_generic_init: .long sh_generic_init
|