Commit 99919e5e authored by Mark A. Greer's avatar Mark A. Greer Committed by Benoit Cousson
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ARM: dts: AM33XX: Add AES data and documentation 



Add the generic AM33XX AES 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 AES module.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarMark A. Greer <mgreer@animalcreek.com>
Signed-off-by: default avatarJoel Fernandes <joelf@ti.com>
[joelf@ti.com: Dropped interrupt-parent property, documentation fixups]
Signed-off-by: default avatarBenoit Cousson <bcousson@baylibre.com>
parent f8302e1e

Documentation/devicetree/bindings/crypto/omap-aes.txt

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OMAP SoC AES crypto Module



Required properties:



- compatible : Should contain entries for this and backward compatible

  AES versions:

  - "ti,omap2-aes" for OMAP2.

  - "ti,omap3-aes" for OMAP3.

  - "ti,omap4-aes" for OMAP4 and AM33XX.

  Note that the OMAP2 and 3 versions are compatible (OMAP3 supports

  more algorithms) but they are incompatible with OMAP4.

- ti,hwmods: Name of the hwmod associated with the AES module

- reg : Offset and length of the register set for the module

- interrupts : the interrupt-specifier for the AES module.



Optional properties:

- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,

	Documentation/devicetree/bindings/dma/dma.txt

- dma-names: DMA request names should include "tx" and "rx" if present.



Example:

	/* AM335x */

	aes: aes@53500000 {

		compatible = "ti,omap4-aes";

		ti,hwmods = "aes";

		reg = <0x53500000 0xa0>;

		interrupts = <102>;

		dmas = <&edma 6>,

		       <&edma 5>;

		dma-names = "tx", "rx";

	};

arch/arm/boot/dts/am335x-bone.dts

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@@ -23,3 +23,7 @@ 
&sham {

	status = "okay";

};



&aes {

	status = "okay";

};

arch/arm/boot/dts/am335x-evm.dts

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@@ -527,3 +527,7 @@ 
&sham {

	status = "okay";

};



&aes {

	status = "okay";

};

arch/arm/boot/dts/am335x-evmsk.dts

+4 −0
Original line number Diff line number Diff line
@@ -429,3 +429,7 @@ 
&sham {

	status = "okay";

};



&aes {

	status = "okay";

};

arch/arm/boot/dts/am33xx.dtsi

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@@ -721,5 +721,15 @@ 
			dmas = <&edma 36>;

			dma-names = "rx";

		};



		aes: aes@53500000 {

			compatible = "ti,omap4-aes";

			ti,hwmods = "aes";

			reg = <0x53500000 0xa0>;

			interrupts = <102>;

			dmas = <&edma 6>,

			       <&edma 5>;

			dma-names = "tx", "rx";

		};

	};

};

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