ARM: rockchip: add power-management-unit
From: Heiko Stuebner <heiko@...> Date: Mon, 17 Jun 2013 22:17:16 +0200
Commit-Message
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@...> Tested-by: Ulrich Prinz <ulrich.prinz@...>
Patch-Comment
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
Statistics
- 21 lines added
- 0 lines removed
Changes
------------ Documentation/devicetree/bindings/arm/rockchip/pmu.txt ------------
new file mode 100644
index 0000000..3ee9b42
@@ -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>;
+ };
------------------------ arch/arm/boot/dts/rk3xxx.dtsi -------------------------
index 0a3d5b1..26e5a96 100644
@@ -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;