Rockchip SRAM for pmu:
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------------------------------
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The sram of pmu is used to store the function of resume from maskrom(the 1st
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level loader). This is a common use of the "pmu-sram" because it keeps power
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even in low power states in the system.
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Required node properties:
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- compatible : should be "rockchip,rk3288-pmu-sram"
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- reg : physical base address and the size of the registers window
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Example:
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sram@ff720000 {
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compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";
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reg = <0xff720000 0x1000>;
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};
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