98 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
Add the generic AM33XX SHAM module's device tree data and
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enable it for the am335x-evm, am335x-evmsk, and am335x-bone
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platforms.  Also add Documentation file describing the data
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for the SHAM module.
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[joelf@ti.com: Dropped interrupt-parrent property, documentation fixups]
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CC: Paul Walmsley <paul@pwsan.com>
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Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
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Acked-by: Mark Rutland <mark.rutland@arm.com>
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---
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.../devicetree/bindings/crypto/omap-sham.txt       | 28 ++++++++++++++++++++++
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 arch/arm/boot/dts/am335x-bone.dts                  |  4 ++++
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 arch/arm/boot/dts/am335x-evm.dts                   |  4 ++++
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 arch/arm/boot/dts/am335x-evmsk.dts                 |  4 ++++
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 arch/arm/boot/dts/am33xx.dtsi                      |  9 +++++++
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 5 files changed, 49 insertions(+)
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 create mode 100644 Documentation/devicetree/bindings/crypto/omap-sham.txt
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/crypto/omap-sham.txt
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@@ -0,0 +1,28 @@
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+OMAP SoC SHA crypto Module
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+
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+Required properties:
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+
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+- compatible : Should contain entries for this and backward compatible
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+  SHAM versions:
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+  - "ti,omap2-sham" for OMAP2 & OMAP3.
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+  - "ti,omap4-sham" for OMAP4 and AM33XX.
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+  Note that these two versions are incompatible.
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+- ti,hwmods: Name of the hwmod associated with the SHAM module
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+- reg : Offset and length of the register set for the module
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+- interrupts : the interrupt-specifier for the SHAM module.
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+
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+Optional properties:
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+- dmas: DMA specifiers for the rx dma. See the DMA client binding,
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+	Documentation/devicetree/bindings/dma/dma.txt
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+- dma-names: DMA request name. Should be "rx" if a dma is present.
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+
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+Example:
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+	/* AM335x */
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+	sham: sham@53100000 {
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+		compatible = "ti,omap4-sham";
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+		ti,hwmods = "sham";
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+		reg = <0x53100000 0x200>;
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+		interrupts = <109>;
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+		dmas = <&edma 36>;
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+		dma-names = "rx";
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+	};
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--- a/arch/arm/boot/dts/am335x-bone.dts
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+++ b/arch/arm/boot/dts/am335x-bone.dts
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@@ -20,3 +20,7 @@
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 	status = "okay";
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 	vmmc-supply = <&ldo3_reg>;
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 };
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+
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+&sham {
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+	status = "okay";
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+};
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--- a/arch/arm/boot/dts/am335x-evm.dts
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+++ b/arch/arm/boot/dts/am335x-evm.dts
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@@ -524,3 +524,7 @@
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 	status = "okay";
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 	vmmc-supply = <&vmmc_reg>;
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 };
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+
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+&sham {
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+	status = "okay";
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+};
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--- a/arch/arm/boot/dts/am335x-evmsk.dts
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+++ b/arch/arm/boot/dts/am335x-evmsk.dts
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@@ -430,3 +430,7 @@
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 &gpio0 {
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 	ti,no-reset-on-init;
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 };
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+
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+&sham {
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+	status = "okay";
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+};
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--- a/arch/arm/boot/dts/am33xx.dtsi
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+++ b/arch/arm/boot/dts/am33xx.dtsi
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@@ -707,5 +707,14 @@
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 			#size-cells = <1>;
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 			status = "disabled";
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 		};
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+
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+		sham: sham@53100000 {
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+			compatible = "ti,omap4-sham";
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+			ti,hwmods = "sham";
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+			reg = <0x53100000 0x200>;
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+			interrupts = <109>;
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+			dmas = <&edma 36>;
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+			dma-names = "rx";
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+		};
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 	};
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 };
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