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Date: Tue, 25 Feb 2014 12:48:24 +0100 From: Heiko Stübner <heiko@...ech.de> To: "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Cc: arm@...nel.org, Grant Likely <grant.likely@...aro.org>, Rob Herring <robherring2@...il.com>, devicetree@...r.kernel.org, Philipp Zabel <p.zabel@...gutronix.de>, linux-kernel@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Stephen Warren <swarren@...dotorg.org>, Ian Campbell <ijc+devicetree@...lion.org.uk> Subject: [PATCH v8 5/6] 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@...ech.de> Tested-by: Ulrich Prinz <ulrich.prinz@...glemail.com> --- Documentation/devicetree/bindings/arm/rockchip/pmu.txt | 16 ++++++++++++++++ arch/arm/boot/dts/rk3xxx.dtsi | 5 +++++ 2 files changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/rockchip/pmu.txt diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu.txt b/Documentation/devicetree/bindings/arm/rockchip/pmu.txt new file mode 100644 index 0000000..3ee9b42 --- /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@...04000 { + compatible = "rockchip,rk3066-pmu"; + reg = <0x20004000 0x100>; + }; diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi index 0a3d5b1..26e5a96 100644 --- a/arch/arm/boot/dts/rk3xxx.dtsi +++ b/arch/arm/boot/dts/rk3xxx.dtsi @@ -31,6 +31,11 @@ reg = <0x1013c000 0x100>; }; + pmu@...04000 { + compatible = "rockchip,rk3066-pmu"; + reg = <0x20004000 0x100>; + }; + gic: interrupt-controller@...3d000 { compatible = "arm,cortex-a9-gic"; interrupt-controller; -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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