[PATCH 2/3] pm: at91: pm_suspend: MOR register KEY was missing

From: Wenyou Yang
Date: Wed Feb 11 2015 - 21:54:36 EST

From: Patrice Vilchez <patrice.vilchez@xxxxxxxxx>

Because writing the MOR register requires the PASSWD(0x37),
if missed, the write operation will be aborted.

Signed-off-by: Patrice Vilchez <patrice.vilchez@xxxxxxxxx>
arch/arm/mach-at91/pm_suspend.S | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
index 1c7256a..5347ad4 100644
--- a/arch/arm/mach-at91/pm_suspend.S
+++ b/arch/arm/mach-at91/pm_suspend.S
@@ -132,6 +132,7 @@ ENTRY(at91_pm_suspend_in_sram)
/* Turn off the main oscillator */
ldr tmp1, [pmc, #AT91_CKGR_MOR]
bic tmp1, tmp1, #AT91_PMC_MOSCEN
+ orr tmp1, tmp1, #AT91_PMC_KEY
str tmp1, [pmc, #AT91_CKGR_MOR]

@@ -149,6 +150,7 @@ skip_disable_main_clock:
/* Turn on the main oscillator */
ldr tmp1, [pmc, #AT91_CKGR_MOR]
orr tmp1, tmp1, #AT91_PMC_MOSCEN
+ orr tmp1, tmp1, #AT91_PMC_KEY
str tmp1, [pmc, #AT91_CKGR_MOR]


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/