84 lines
2.3 KiB
ArmAsm
84 lines
2.3 KiB
ArmAsm
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/*
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* The head-file for SH-Mobile ARM platforms
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*
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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* Simon Horman <horms@verge.net.au>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifdef CONFIG_ZBOOT_ROM
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.section ".start", "ax"
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/* load board-specific initialization code */
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#include <mach/zboot.h>
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#if defined(CONFIG_ZBOOT_ROM_MMCIF) || defined(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI)
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/* Load image from MMC/SD */
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adr sp, __tmp_stack + 256
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ldr r0, __image_start
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ldr r1, __image_end
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subs r1, r1, r0
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ldr r0, __load_base
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bl mmc_loader
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/* Jump to loaded code */
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ldr r0, __loaded
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ldr r1, __image_start
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sub r0, r0, r1
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ldr r1, __load_base
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add pc, r0, r1
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__image_start:
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.long _start
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__image_end:
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.long _got_end
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__load_base:
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.long CONFIG_MEMORY_START + 0x02000000 @ Load at 32Mb into SDRAM
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__loaded:
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.long __continue
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.align
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__tmp_stack:
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.space 256
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__continue:
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#endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
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b 1f
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__atags:@ tag #1
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.long 12 @ tag->hdr.size = tag_size(tag_core);
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.long 0x54410001 @ tag->hdr.tag = ATAG_CORE;
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.long 0 @ tag->u.core.flags = 0;
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.long 0 @ tag->u.core.pagesize = 0;
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.long 0 @ tag->u.core.rootdev = 0;
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@ tag #2
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.long 8 @ tag->hdr.size = tag_size(tag_mem32);
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.long 0x54410002 @ tag->hdr.tag = ATAG_MEM;
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.long CONFIG_MEMORY_SIZE @ tag->u.mem.size = CONFIG_MEMORY_SIZE;
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.long CONFIG_MEMORY_START @ @ tag->u.mem.start = CONFIG_MEMORY_START;
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@ tag #3
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.long 0 @ tag->hdr.size = 0
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.long 0 @ tag->hdr.tag = ATAG_NONE;
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1:
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/* Set board ID necessary for boot */
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ldr r7, 1f @ Set machine type register
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adr r8, __atags @ Set atag register
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b 2f
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1 : .long MACH_TYPE
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2 :
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#endif /* CONFIG_ZBOOT_ROM */
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