linux/arch/arm/mach-shmobile/include/mach/zboot_macros.h
Kuninori Morimoto 3d09fbcd26 ARM: 6514/1: mach-shmobile: 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 board-specific portion of this patch-set.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-05 08:40:21 +00:00

66 lines
999 B
C

#ifndef __ZBOOT_MACRO_H
#define __ZBOOT_MACRO_H
/* The LIST command is used to include comments in the script */
.macro LIST comment
.endm
/* The ED command is used to write a 32-bit word */
.macro ED, addr, data
LDR r0, 1f
LDR r1, 2f
STR r1, [r0]
B 3f
1 : .long \addr
2 : .long \data
3 :
.endm
/* The EW command is used to write a 16-bit word */
.macro EW, addr, data
LDR r0, 1f
LDR r1, 2f
STRH r1, [r0]
B 3f
1 : .long \addr
2 : .long \data
3 :
.endm
/* The EB command is used to write an 8-bit word */
.macro EB, addr, data
LDR r0, 1f
LDR r1, 2f
STRB r1, [r0]
B 3f
1 : .long \addr
2 : .long \data
3 :
.endm
/* The WAIT command is used to delay the execution */
.macro WAIT, time, reg
LDR r1, 1f
LDR r0, 2f
STR r0, [r1]
10 :
LDR r0, [r1]
CMP r0, #0x00000000
BNE 10b
NOP
B 3f
1 : .long \reg
2 : .long \time * 100
3 :
.endm
/* The DD command is used to read a 32-bit word */
.macro DD, start, end
LDR r1, 1f
B 2f
1 : .long \start
2 :
.endm
#endif /* __ZBOOT_MACRO_H */