ARM: 8284/1: sa1100: clear RCSR_SMR on resume

StrongARM core uses RCSR SMR bit to tell to bootloader that it was reset by entering the sleep mode. After we have resumed, there is little point in having that bit enabled. Moreover, if this bit is set before reboot, the bootloader can become confused. Thus clear the SMR bit on resume just before clearing the scratchpad (resume address) register. Cc: [email protected] Signed-off-by: Dmitry Eremin-Solenikov <[email protected]> Signed-off-by: Russell King <[email protected]>
mhuangwm · Jan 29, 2015 · e461894 · e461894
1 parent 1ff990c
commit e461894
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
@@ -81,6 +81,7 @@ static int sa11x0_pm_enter(suspend_state_t state)
 	/*
 	 * Ensure not to come back here if it wasn't intended
 	 */
+	RCSR = RCSR_SMR;
 	PSPR = 0;
 
 	/*