[PATCH 3.13.y-ckt 086/156] ARM: at91: pm: fix at91rm9200 standby

From: Kamal Mostafa
Date: Tue Apr 07 2015 - 19:17:27 EST

3.13.11-ckt19 -stable review patch. If anyone has any objections, please let me know.


From: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>

commit 84e871660bebfddb9a62ebd6f19d02536e782f0a upstream.

at91rm9200 standby and suspend to ram has been broken since
00482a4078f4. It is wrongly using AT91_BASE_SYS which is a physical address
and actually doesn't correspond to any register on at91rm9200.

Use the correct at91_ramc_base[0] instead.

Fixes: 00482a4078f4 (ARM: at91: implement the standby function for pm/cpuidle)

Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
arch/arm/mach-at91/pm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index c5101dc..1d4df3b 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -45,7 +45,7 @@ static inline void at91rm9200_standby(void)
" mcr p15, 0, %0, c7, c0, 4\n\t"
" str %5, [%1, %2]"
- : "r" (0), "r" (AT91_BASE_SYS), "r" (AT91RM9200_SDRAMC_LPR),
+ : "r" (0), "r" (at91_ramc_base[0]), "r" (AT91RM9200_SDRAMC_LPR),
"r" (1), "r" (AT91RM9200_SDRAMC_SRR),
"r" (lpr));

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