]> git.ipfire.org Git - people/ms/u-boot.git/blame - cpu/sh4/start.S
rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / cpu / sh4 / start.S
CommitLineData
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1/*
2 * (C) Copyright 2007
3 * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18 * MA 02111-1307 USA
19 */
20
21#include <config.h>
22#include <version.h>
23
24 .text
25 .align 2
26
27 .global _start
28_start:
29 mov.l ._lowlevel_init, r0
30100: bsrf r0
31 nop
32
33 bsr 1f
34 nop
351: sts pr, r5
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WD
36 mov.l ._reloc_dst, r4
37 add #(_start-1b), r5
38 mov.l ._reloc_dst_end, r6
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39
402: mov.l @r5+, r1
41 mov.l r1, @r4
42 add #4, r4
43 cmp/hs r6, r4
44 bf 2b
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WD
45
46 mov.l ._bss_start, r4
47 mov.l ._bss_end, r5
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48 mov #0, r1
49
61fb15c5 503: mov.l r1, @r4 /* bss clear */
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51 add #4, r4
52 cmp/hs r5, r4
53 bf 3b
54
55 mov.l ._gd_init, r13 /* global data */
56 mov.l ._stack_init, r15 /* stack */
57
58 mov.l ._sh_generic_init, r0
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59 jsr @r0
60 nop
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61
62loop:
63 bra loop
64
65 .align 2
66
67._lowlevel_init: .long (lowlevel_init - (100b + 4))
68._reloc_dst: .long reloc_dst
69._reloc_dst_end: .long reloc_dst_end
70._bss_start: .long bss_start
71._bss_end: .long bss_end
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72._gd_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE)
73._stack_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
0b135cfc 74._sh_generic_init: .long sh_generic_init