PM Core for OMAP1 platforms. PM Core provides arch dependent routine to get/set operating points, hooks up with arhc independent PowerOP layer and utilizes clock/voltage framework to access hardware. PM Core is expected to handle additional arch specific actions required to accompany clock/voltage framework during operating points change (for example if simultaneous coupled clocks/voltage change needs special attention on a platform). Basic building block for PM Core layer is platform power parameter concept. Current OMAP implementation relies on "smart" virtual mpu clock introduced by OMAP1 clock framework (#define PM_CORE_USE_MPU_CLOCK). Since voltage framework is not merged into mainline yet routine to change voltage is temporary implemented in the PM Core for reference.
