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ARM: highbank: add a power request clear

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When we fail to power down, we need to clear out the power request.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Rob Herring 2012-12-30 10:15:06 -06:00 committed by Olof Johansson
parent 0b3455a71e
commit 9852910a0b
1 changed files with 15 additions and 0 deletions
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15
arch/arm/mach-highbank/sysregs.h
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@ -44,6 +44,15 @@ static inline void highbank_set_core_pwr(void)
writel_relaxed(1, sregs_base + SREG_CPU_PWR_CTRL(cpu));
}
static inline void highbank_clear_core_pwr(void)
{
int cpu = cpu_logical_map(smp_processor_id());
if (scu_base_addr)
scu_power_mode(scu_base_addr, SCU_PM_NORMAL);
else
writel_relaxed(0, sregs_base + SREG_CPU_PWR_CTRL(cpu));
}
static inline void highbank_set_pwr_suspend(void)
{
writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
@ -68,4 +77,10 @@ static inline void highbank_set_pwr_hard_reset(void)
highbank_set_core_pwr();
}
static inline void highbank_clear_pwr_request(void)
{
writel(~0UL, sregs_base + HB_SREG_A9_PWR_REQ);
highbank_clear_core_pwr();
}
#endif