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| author | Heiko Stuebner <heiko@sntech.de> | 2013-06-17 22:17:16 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2014-03-01 17:21:53 +0100 |
| commit | 46b8219c519be424ab96b5b7fabee171c1e6b4c7 (patch) | |
| tree | 62b96c33951890d103a9c28ae785b8a0804c029b | |
| parent | de18e01478d3a65112521de04b67e9029b99f55d (diff) | |
| download | linux-46b8219c519be424ab96b5b7fabee171c1e6b4c7.tar.bz2 | |
ARM: rockchip: add power-management-unit
The pmu is needed to bring up the cores during smp operations and later
also other system parts. Therefore add a node and documentation for it.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Ulrich Prinz <ulrich.prinz@googlemail.com>
| -rw-r--r-- | Documentation/devicetree/bindings/arm/rockchip/pmu.txt | 16 | ||||
| -rw-r--r-- | arch/arm/boot/dts/rk3xxx.dtsi | 5 |
2 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu.txt b/Documentation/devicetree/bindings/arm/rockchip/pmu.txt new file mode 100644 index 000000000000..3ee9b428b2f7 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/rockchip/pmu.txt @@ -0,0 +1,16 @@ +Rockchip power-management-unit: +------------------------------- + +The pmu is used to turn off and on different power domains of the SoCs +This includes the power to the CPU cores. + +Required node properties: +- compatible value : = "rockchip,rk3066-pmu"; +- reg : physical base address and the size of the registers window + +Example: + + pmu@20004000 { + compatible = "rockchip,rk3066-pmu"; + reg = <0x20004000 0x100>; + }; diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi index 0a3d5b131eba..26e5a968d49d 100644 --- a/arch/arm/boot/dts/rk3xxx.dtsi +++ b/arch/arm/boot/dts/rk3xxx.dtsi @@ -31,6 +31,11 @@ reg = <0x1013c000 0x100>; }; + pmu@20004000 { + compatible = "rockchip,rk3066-pmu"; + reg = <0x20004000 0x100>; + }; + gic: interrupt-controller@1013d000 { compatible = "arm,cortex-a9-gic"; interrupt-controller; |