[PATCH 3/3] ARM: dts: AM33xx: Add RNG node
From: Lokesh Vutla <hidden>
Date: 2013-08-06 08:33:04
Also in:
linux-omap
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add the generic AM33xx RNG module's device tree data and enable it for the am335x-evm, am335x-evmsk, and am335x-bone platforms. Also add Documentation file describing the data for the RNG module. Signed-off-by: Lokesh Vutla <redacted> --- .../devicetree/bindings/hwrng/omap_rng.txt | 22 ++++++++++++++++++++ arch/arm/boot/dts/am335x-bone.dts | 4 ++++ arch/arm/boot/dts/am335x-evm.dts | 4 ++++ arch/arm/boot/dts/am335x-evmsk.dts | 4 ++++ arch/arm/boot/dts/am33xx.dtsi | 8 +++++++ 5 files changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwrng/omap_rng.txt
diff --git a/Documentation/devicetree/bindings/hwrng/omap_rng.txt b/Documentation/devicetree/bindings/hwrng/omap_rng.txt
new file mode 100644
index 0000000..6a62acd
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwrng/omap_rng.txt@@ -0,0 +1,22 @@ +OMAP SoC HWRNG Module + +Required properties: + +- compatible : Should contain entries for this and backward compatible + RNG versions: + - "ti,omap2-rng" for OMAP2. + - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX. + Note that these two versions are incompatible. +- ti,hwmods: Name of the hwmod associated with the RNG module +- reg : Offset and length of the register set for the module +- interrupts : the interrupt number for the RNG module. + Only used for "ti,omap4-rng". + +Example: +/* AM335x */ +rng: rng at 48310000 { + compatible = "ti,omap4-rng"; + ti,hwmods = "rng"; + reg = <0x48310000 0x2000>; + interrupts = <111>; +};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 444b4ed..46a3887 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts@@ -234,3 +234,7 @@ pinctrl-0 = <&davinci_mdio_default>; pinctrl-1 = <&davinci_mdio_sleep>; }; + +&rng { + status = "okay"; +};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 3aee1a4..ebfbebe1 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts@@ -488,3 +488,7 @@ ti,adc-channels = <4 5 6 7>; }; }; + +&rng { + status = "okay"; +};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 0c8ad17..6610a05 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts@@ -402,3 +402,7 @@ phy_id = <&davinci_mdio>, <1>; phy-mode = "rgmii-txid"; }; + +&rng { + status = "okay"; +};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 38b446b..b1e6205 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi@@ -530,5 +530,13 @@ #size-cells = <1>; status = "disabled"; }; + + rng: rng at 48310000 { + compatible = "ti,omap4-rng"; + ti,hwmods = "rng"; + reg = <0x48310000 0x2000>; + interrupts = <111>; + status = "disabled"; + }; }; };
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1.7.9.5