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

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commit e461894dc2 upstream.

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.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Eremin-Solenikov
2015-01-15 03:06:22 +01:00
committed by Greg Kroah-Hartman
parent 0d998434ce
commit 49d9336fac
1 changed files with 1 additions and 0 deletions
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1
arch/arm/mach-sa1100/pm.c
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@@ -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;
/*