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 */ 20 21#ifdef CONFIG_ZBOOT_ROM 22 23 .section ".start", "ax" 24 25 /* load board-specific initialization code */ 26#include <mach/zboot.h> 27 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 36 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 43 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 */ 57 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; 731: 74 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 79 801 : .long MACH_TYPE 812 : 82 83#endif /* CONFIG_ZBOOT_ROM */ 84