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[ARM] 5014/1: Cleanup reset state before entering suspend or resetting. 

The kernel should clean stale bits from reset status, so that
they won't confuse the bootloader.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Dmitry Baryshkov 2008-04-21 11:54:13 +01:00 committed by Russell King
parent 406b1ea441
commit d3930614e6
2 changed files with 4 additions and 2 deletions
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4
arch/arm/mach-pxa/pm.c
View File

@ -46,8 +46,8 @@ int pxa_pm_enter(suspend_state_t state)
sleep_save_checksum += sleep_save[i];
}
/* Clear sleep reset status */
RCSR = RCSR_SMR;
/* Clear reset status */
RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
/* *** go zzz *** */
pxa_cpu_pm_fns->enter(state);

2
include/asm-arm/arch-pxa/system.h
View File

@ -22,6 +22,8 @@ static inline void arch_idle(void)
static inline void arch_reset(char mode)
{
RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
if (mode == 's') {
/* Jump into ROM at address 0 */
cpu_reset(0);