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authorJoel Fernandes <joelf@ti.com>2013-11-11 23:49:41 +0400
committerTony Lindgren <tony@atomide.com>2013-11-15 19:38:14 +0400
commit31844434239e30cc7419510921929194be41e637 (patch)
tree93023069d85a4d2abd450f8706d95c7ab92c26fc /Documentation
parentcd6d364f474491160bfd8cb4bad0637858023161 (diff)
downloadlinux-31844434239e30cc7419510921929194be41e637.tar.xz
doc: devicetree: Add bindings documentation for omap-des driver
Add documentation for the generic OMAP DES crypto modul describing the device tree bindings. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Joel Fernandes <joelf@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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+OMAP SoC DES crypto Module
+
+Required properties:
+
+- compatible : Should contain "ti,omap4-des"
+- ti,hwmods: Name of the hwmod associated with the DES module
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt-specifier for the DES module
+- clocks : A phandle to the functional clock node of the DES module
+ corresponding to each entry in clock-names
+- clock-names : Name of the functional clock, should be "fck"
+
+Optional properties:
+- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
+ Documentation/devicetree/bindings/dma/dma.txt
+ Each entry corresponds to an entry in dma-names
+- dma-names: DMA request names should include "tx" and "rx" if present
+
+Example:
+ /* DRA7xx SoC */
+ des: des@480a5000 {
+ compatible = "ti,omap4-des";
+ ti,hwmods = "des";
+ reg = <0x480a5000 0xa0>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&sdma 117>, <&sdma 116>;
+ dma-names = "tx", "rx";
+ clocks = <&l3_iclk_div>;
+ clock-names = "fck";
+ };