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Message-ID: <2033803.ve2pEnCxjZ@phil>
Date: Wed, 15 Jan 2014 22:43:11 +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 v6 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;
--
1.7.10.4
--
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