Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / arch / arm / boot / compressed / head-shmobile.S
blobfe3719b516fd47370ba089b624ddd123de6a5750
1 /*
2  * The head-file for SH-Mobile ARM platforms
3  *
4  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
5  * Simon Horman <horms@verge.net.au>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; version 2 of the License.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
19  */
21 #ifdef CONFIG_ZBOOT_ROM
23         .section        ".start", "ax"
25         /* load board-specific initialization code */
26 #include <mach/zboot.h>
28 #if defined(CONFIG_ZBOOT_ROM_MMCIF) || defined(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI)
29         /* Load image from MMC/SD */
30         adr     sp, __tmp_stack + 256
31         ldr     r0, __image_start
32         ldr     r1, __image_end
33         subs    r1, r1, r0
34         ldr     r0, __load_base
35         bl      mmc_loader
37         /* Jump to loaded code */
38         ldr     r0, __loaded
39         ldr     r1, __image_start
40         sub     r0, r0, r1
41         ldr     r1, __load_base
42         add     pc, r0, r1
44 __image_start:
45         .long   _start
46 __image_end:
47         .long   _got_end
48 __load_base:
49         .long   CONFIG_MEMORY_START + 0x02000000 @ Load at 32Mb into SDRAM
50 __loaded:
51         .long   __continue
52         .align
53 __tmp_stack:
54         .space  256
55 __continue:
56 #endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
58         b       1f
59 __atags:@ tag #1
60         .long   12                      @ tag->hdr.size = tag_size(tag_core);
61         .long   0x54410001              @ tag->hdr.tag = ATAG_CORE;
62         .long   0                       @ tag->u.core.flags = 0;
63         .long   0                       @ tag->u.core.pagesize = 0;
64         .long   0                       @ tag->u.core.rootdev = 0;
65         @ tag #2
66         .long   8                       @ tag->hdr.size = tag_size(tag_mem32);
67         .long   0x54410002              @ tag->hdr.tag = ATAG_MEM;
68         .long   CONFIG_MEMORY_SIZE      @ tag->u.mem.size = CONFIG_MEMORY_SIZE;
69         .long   CONFIG_MEMORY_START     @ @ tag->u.mem.start = CONFIG_MEMORY_START;
70         @ tag #3
71         .long   0                       @ tag->hdr.size = 0
72         .long   0                       @ tag->hdr.tag = ATAG_NONE;
75         /* Set board ID necessary for boot */
76         ldr     r7, 1f                          @ Set machine type register
77         adr     r8, __atags                     @ Set atag register
78         b       2f
80 1 :     .long MACH_TYPE
81 2 :
83 #endif /* CONFIG_ZBOOT_ROM */