Add the generic AM33XX SHAM 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 SHAM module. [joelf@ti.com: Dropped interrupt-parrent property, documentation fixups] CC: Paul Walmsley Signed-off-by: Mark A. Greer Acked-by: Mark Rutland --- .../devicetree/bindings/crypto/omap-sham.txt | 28 ++++++++++++++++++++++ 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 | 9 +++++++ 5 files changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/crypto/omap-sham.txt --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/omap-sham.txt @@ -0,0 +1,28 @@ +OMAP SoC SHA crypto Module + +Required properties: + +- compatible : Should contain entries for this and backward compatible + SHAM versions: + - "ti,omap2-sham" for OMAP2 & OMAP3. + - "ti,omap4-sham" for OMAP4 and AM33XX. + Note that these two versions are incompatible. +- ti,hwmods: Name of the hwmod associated with the SHAM module +- reg : Offset and length of the register set for the module +- interrupts : the interrupt-specifier for the SHAM module. + +Optional properties: +- dmas: DMA specifiers for the rx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: DMA request name. Should be "rx" if a dma is present. + +Example: + /* AM335x */ + sham: sham@53100000 { + compatible = "ti,omap4-sham"; + ti,hwmods = "sham"; + reg = <0x53100000 0x200>; + interrupts = <109>; + dmas = <&edma 36>; + dma-names = "rx"; + }; --- a/arch/arm/boot/dts/am335x-bone.dts +++ b/arch/arm/boot/dts/am335x-bone.dts @@ -20,3 +20,7 @@ status = "okay"; vmmc-supply = <&ldo3_reg>; }; + +&sham { + status = "okay"; +}; --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -524,3 +524,7 @@ status = "okay"; vmmc-supply = <&vmmc_reg>; }; + +&sham { + status = "okay"; +}; --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -430,3 +430,7 @@ &gpio0 { ti,no-reset-on-init; }; + +&sham { + status = "okay"; +}; --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -707,5 +707,14 @@ #size-cells = <1>; status = "disabled"; }; + + sham: sham@53100000 { + compatible = "ti,omap4-sham"; + ti,hwmods = "sham"; + reg = <0x53100000 0x200>; + interrupts = <109>; + dmas = <&edma 36>; + dma-names = "rx"; + }; }; };