diff options
| author |   Joseph Lo <josephl@nvidia.com> | 2012-10-31 17:41:20 +0800 |
|---|---|---|
| committer |   Stephen Warren <swarren@nvidia.com> | 2012-11-15 15:09:21 -0700 |
| commit | 01459c69dd48badeb7833c3293e43f7b8ae75e31 (patch) | |
| tree | 4ebe32a49b2b81560c8fb5fc94c9937360f16618 /arch/arm/mach-tegra/flowctrl.h | |
| parent | ARM: tegra30: clocks: add CPU low-power function into tegra_cpu_car_ops (diff) | |
| download | linux-dev-01459c69dd48badeb7833c3293e43f7b8ae75e31.tar.xz linux-dev-01459c69dd48badeb7833c3293e43f7b8ae75e31.zip | |
ARM: tegra30: flowctrl: add cpu_suspend_exter/exit function
The flow controller can help CPU to go into suspend mode (powered-down
state). When CPU go into powered-down state, it needs some careful
settings before getting into and after leaving. The enter and exit
functions do that by configuring appropriate mode for flow controller.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/flowctrl.h')
| -rw-r--r-- | arch/arm/mach-tegra/flowctrl.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/flowctrl.h b/arch/arm/mach-tegra/flowctrl.h index 19428173855e..0798dec1832d 100644 --- a/arch/arm/mach-tegra/flowctrl.h +++ b/arch/arm/mach-tegra/flowctrl.h @@ -34,9 +34,17 @@ #define FLOW_CTRL_HALT_CPU1_EVENTS 0x14 #define FLOW_CTRL_CPU1_CSR 0x18 +#define TEGRA30_FLOW_CTRL_CSR_WFI_CPU0 (1 << 8) +#define TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP (0xF << 4) +#define TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP (0xF << 8) + #ifndef __ASSEMBLY__ +u32 flowctrl_read_cpu_csr(unsigned int cpuid); void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value); void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value); + +void flowctrl_cpu_suspend_enter(unsigned int cpuid); +void flowctrl_cpu_suspend_exit(unsigned int cpuid); #endif #endif |