[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>

2 files changed, 4 insertions, 2 deletions

diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index 039194cbe477..ec1bbf333a3a 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -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);
diff --git a/include/asm-arm/arch-pxa/system.h b/include/asm-arm/arch-pxa/system.h
index 1d56a3ef89fd..a758a719180f 100644
--- a/include/asm-arm/arch-pxa/system.h
+++ b/include/asm-arm/arch-pxa/system.h
@@ -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);