linux/arch/arm/mach-pxa/mioa701_bootresume.S
Robert Jarzmik 999f633878 [ARM] pxa/MioA701: fix memory corruption.
In the resume bootstrap, the early disable address is wrong.
Fix it to RAM address 0xa020b000 instead of 0xa0200000, and
make it consistent with RESUME_ENABLE_ADDR in mioa701.c.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-11-22 20:57:21 +08:00

37 lines
946 B
ArmAsm

/* Bootloader to resume MIO A701
*
* 2007-1-12 Robert Jarzmik
*
* This code is licenced under the GPLv2.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
/*
* Note: Yes, part of the following code is located into the .data section.
* This is to allow jumpaddr to be accessed with a relative load
* while we can't rely on any MMU translation. We could have put
* sleep_save_sp in the .text section as well, but some setups might
* insist on it to be truly read-only.
*/
.data
ENTRY(mioa701_bootstrap)
0:
b 1f
ENTRY(mioa701_jumpaddr)
.word 0x40f00008 @ PSPR in no-MMU mode
1:
mov r0, #0xa0000000 @ Don't suppose memory access works
orr r0, r0, #0x00200000 @ even if it's supposed to
orr r0, r0, #0x0000b000
mov r1, #0
str r1, [r0] @ Early disable resume for next boot
ldr r0, mioa701_jumpaddr @ (Murphy's Law)
ldr r0, [r0]
mov pc, r0
2:
ENTRY(mioa701_bootstrap_lg)
.data
.word 2b-0b