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Commit 9a4af112 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Russell King
Browse files

ARM: 6515/1: Add zboot support for SuperH Mobile ARM 



When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

This is the non-board-specific framework portion of this patch-set.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarSimon Horman <horms@verge.net.au>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e8a7e48b

arch/arm/boot/compressed/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -45,6 +45,10 @@ else 
endif

endif



ifeq ($(CONFIG_ARCH_SHMOBILE),y)

OBJS		+= head-shmobile.o

endif



#

# We now have a PIC decompressor implementation.  Decompressors running

# from RAM should not define ZTEXTADDR.  Decompressors running directly

arch/arm/boot/compressed/head-shmobile.S

0 → 100644
+53 −0
Original line number Diff line number Diff line 
/*

 * The head-file for SH-Mobile ARM platforms

 *

 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

 * Simon Horman <horms@verge.net.au>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */



#ifdef CONFIG_ZBOOT_ROM



	.section	".start", "ax"



	/* load board-specific initialization code */

#include <mach/zboot.h>



	b	1f

__atags:@ tag #1

	.long	12			@ tag->hdr.size = tag_size(tag_core);

	.long	0x54410001		@ tag->hdr.tag = ATAG_CORE;

	.long   0			@ tag->u.core.flags = 0;

	.long	0			@ tag->u.core.pagesize = 0;

	.long	0			@ tag->u.core.rootdev = 0;

	@ tag #2

	.long	8			@ tag->hdr.size = tag_size(tag_mem32);

	.long	0x54410002		@ tag->hdr.tag = ATAG_MEM;

	.long	CONFIG_MEMORY_SIZE	@ tag->u.mem.size = CONFIG_MEMORY_SIZE;

	.long	CONFIG_MEMORY_START	@ @ tag->u.mem.start = CONFIG_MEMORY_START;

	@ tag #3

	.long	0			@ tag->hdr.size = 0

	.long	0			@ tag->hdr.tag = ATAG_NONE;

1:



	/* Set board ID necessary for boot */

	ldr	r7, 1f				@ Set machine type register

	adr	r8, __atags			@ Set atag register

	b	2f



1 :	.long MACH_TYPE

2 :



#endif /* CONFIG_ZBOOT_ROM */

arch/arm/mach-shmobile/include/mach/zboot.h

0 → 100644
+12 −0
Original line number Diff line number Diff line 
#ifndef ZBOOT_H

#define ZBOOT_H



/**************************************************

 *

 *		board specific settings

 *

 **************************************************/



#error "unsupported board."



#endif /* ZBOOT_H */