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ARM: rockchip: add power-management-unit

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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>
This commit is contained in:
Heiko Stuebner 2013-06-17 22:17:16 +02:00
parent de18e01478
commit 46b8219c51
2 changed files with 21 additions and 0 deletions
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16
Documentation/devicetree/bindings/arm/rockchip/pmu.txt Normal file
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@ -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>;
};

5
arch/arm/boot/dts/rk3xxx.dtsi
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@ -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;