• Joseph Lo's avatar
    ARM: tegra30: cpuidle: add powered-down state for secondary CPUs · d457ef35
    Joseph Lo authored
    This supports power-gated idle on secondary CPUs for Tegra30. The
    secondary CPUs can go into powered-down state independently. When
    CPU goes into this state, it saves it's contexts and puts itself
    to flow controlled WFI state. After that, it will been power gated.
    
    Be aware of that, you may see the legacy power state "LP2" in the
    code which is exactly the same meaning of "CPU power down".
    
    Based on the work by:
    Scott Williams <scwilliams@nvidia.com>
    Signed-off-by: default avatarJoseph Lo <josephl@nvidia.com>
    Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
    d457ef35
sleep-tegra30.S 3.25 KB