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| author | Joseph Lo <josephl@nvidia.com> | 2013-07-19 17:25:25 +0800 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-07-19 10:07:14 -0600 |
| commit | 1b9e6b2745621984b4aad49b0386814815fb15e7 (patch) | |
| tree | 3b258ce7b8cdfe8cfb3c06d120bbba4dbedfcf70 /arch/arm/mach-sa1100 | |
| parent | 7e8b15dbc392cf3097f2d2e6dfbbf2e97318c553 (diff) | |
| download | blackbird-op-linux-1b9e6b2745621984b4aad49b0386814815fb15e7.tar.gz blackbird-op-linux-1b9e6b2745621984b4aad49b0386814815fb15e7.zip | |
ARM: tegra114: add low level support for CPU idle powered-down mode
The flow controller would take care the power sequence when CPU idle in
powered-down mode. It powered gate the CPU when CPU runs into WFI
instruction. And wake up the CPU when event be triggered.
The sequence is below.
* setting wfi bitmap for the CPU as the halt event in the
FLOW_CTRL_CPU_HALT_REG to monitor the CPU running into WFI,then power
gate it
* setting IRQ and FIQ as wake up event to wake up CPU when event triggered
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-sa1100')
0 files changed, 0 insertions, 0 deletions
