ARM: at91: implement the standby function for pm/cpuidle

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This patch groups the self-refresh on/cpu_do_idle/self-refresh off into
a single 'standby' function.

The standby routine for rm9200 has been turned into an asm routine to have
a better control of the self refresh and to prevent a memory access when
running this code.

Draining the write buffer is done automatically when switching for the self
refresh on sam9, so the instruction is added to the rm9200 only.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

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Daniel Lezcano 2012-01-25 00:56:08 +01:00 • committed by Nicolas Ferre

parent b59160f6c0

commit 00482a4078

3 changed files with 34 additions and 42 deletions

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11

arch/arm/mach-at91/cpuidle.c

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12

arch/arm/mach-at91/pm.c

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51

arch/arm/mach-at91/pm.h

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