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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 <paul@pwsan.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
---
.../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";
+ };
};
};
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