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Nobuhiro Iwamatsu6ad43d02008-08-31 22:48:33 +09001/*
2 * Copyright (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
3 * Copyright (C) 2008 Renesas Solutions Corp.
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 .long 0x00000010 /* Ppower ON reset PC*/
30 .long 0x00000000
31 .long 0x00000010 /* Manual reset PC */
32 .long 0x00000000
33_init:
34 mov.l ._lowlevel_init, r0
35100: bsrf r0
36 nop
37 bsr 1f
38 nop
391: sts pr, r5
40 mov.l ._reloc_dst, r4
41 add #(_start-1b), r5
42 mov.l ._reloc_dst_end, r6
43
442: mov.l @r5+, r1
45 mov.l r1, @r4
46 add #4, r4
47 cmp/hs r6, r4
48 bf 2b
49
50 mov.l ._bss_start, r4
51 mov.l ._bss_end, r5
52 mov #0, r1
53
543: mov.l r1, @r4 /* bss clear */
55 add #4, r4
56 cmp/hs r5, r4
57 bf 3b
58
59 mov.l ._gd_init, r13 /* global data */
60 mov.l ._stack_init, r15 /* stack */
61
62 mov.l ._sh_generic_init, r0
63 jsr @r0
64 nop
65
66loop:
67 bra loop
68
69 .align 2
70
71._lowlevel_init: .long (lowlevel_init - (100b + 4))
72._reloc_dst: .long reloc_dst
73._reloc_dst_end: .long reloc_dst_end
74._bss_start: .long bss_start
75._bss_end: .long bss_end
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020076._gd_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE)
77._stack_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
Nobuhiro Iwamatsu6ad43d02008-08-31 22:48:33 +090078._sh_generic_init: .long sh_generic_init