diff options
| author | Bo Yan <byan@nvidia.com> | 2012-04-30 11:48:51 -0700 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2012-06-27 17:28:48 +0530 |
| commit | 170fc34a8f96552122231be6ed23a65584ea0310 (patch) | |
| tree | fd241dfc8fa0a57b67790918ecec0c82938f2fc5 /arch/arm/mach-tegra/sleep-t3.S | |
| parent | 7f01959d32aef2a43c7fcb42d0da3641ce641cbf (diff) | |
ARM: tegra11: Use wfi for power gating
Change-Id: I2331b92848c86f09866850d19d5b8a63d9190bca
Signed-off-by: Bo Yan <byan@nvidia.com>
Reviewed-on: http://git-master/r/99691
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/sleep-t3.S')
| -rw-r--r-- | arch/arm/mach-tegra/sleep-t3.S | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/sleep-t3.S b/arch/arm/mach-tegra/sleep-t3.S index 78f97d7d9c80..8c931348df2e 100644 --- a/arch/arm/mach-tegra/sleep-t3.S +++ b/arch/arm/mach-tegra/sleep-t3.S @@ -162,7 +162,11 @@ ENTRY(tegra3_cpu_reset) /* Clear this CPU's "event" and "interrupt" flags and power gate it when halting but not before it is in the "WFE" state. */ movw r12, FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | FLOW_CTRL_CSR_ENABLE - mov r4, #(1 << 4) +#if defined(CONFIG_ARCH_TEGRA_11x_SOC) + mov r4, #(1 << 8) @ wfi bitmap +#else + mov r4, #(1 << 4) @ wfe bitmap +#endif orr r12, r12, r4, lsl r3 str r12, [r1] @@ -184,7 +188,11 @@ delay_1: __cpu_reset_again: dsb .align 5 +#if defined(CONFIG_ARCH_TEGRA_11x_SOC) + wfi @ CPU should be power gated here +#else wfe @ CPU should be power gated here +#endif wfe_war: b __cpu_reset_again |