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Add the generic AM33XX AES 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 AES module.
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[joelf@ti.com: Dropped interrupt-parent propert, 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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---
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.../devicetree/bindings/crypto/omap-aes.txt | 31 ++++++++++++++++++++++
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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 | 10 +++++++
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5 files changed, 53 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/crypto/omap-aes.txt
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/crypto/omap-aes.txt
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@@ -0,0 +1,31 @@
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+OMAP SoC AES 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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+ AES versions:
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+ - "ti,omap2-aes" for OMAP2.
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+ - "ti,omap3-aes" for OMAP3.
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+ - "ti,omap4-aes" for OMAP4 and AM33XX.
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+ Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
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+ more algorithms) but they are incompatible with OMAP4.
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+- ti,hwmods: Name of the hwmod associated with the AES 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 AES module.
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+
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+Optional properties:
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+- dmas: DMA specifiers for tx and 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 names should include "tx" and "rx" if present.
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+
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+Example:
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+ /* AM335x */
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+ aes: aes@53500000 {
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+ compatible = "ti,omap4-aes";
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+ ti,hwmods = "aes";
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+ reg = <0x53500000 0xa0>;
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+ interrupts = <102>;
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+ dmas = <&edma 6>,
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+ <&edma 5>;
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+ dma-names = "tx", "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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@@ -24,3 +24,7 @@
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&sham {
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status = "okay";
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};
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+
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+&aes {
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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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@@ -528,3 +528,7 @@
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&sham {
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status = "okay";
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};
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+
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+&aes {
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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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@@ -434,3 +434,7 @@
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&sham {
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status = "okay";
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};
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+
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+&aes {
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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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@@ -716,5 +716,15 @@
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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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+ aes: aes@53500000 {
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+ compatible = "ti,omap4-aes";
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+ ti,hwmods = "aes";
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+ reg = <0x53500000 0xa0>;
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+ interrupts = <102>;
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+ dmas = <&edma 6>,
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+ <&edma 5>;
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+ dma-names = "tx", "rx";
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+ };
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};
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};
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