This adds the binding documenation for the Imagination Technologies hash accelerator that provides hardware acceleration for SHA1/SHA224/SHA256/MD5 hashes. This hardware will be present in the upcoming pistachio SoC. Signed-off-by: James Hartley <james.hartley@xxxxxxxxxx> --- .../devicetree/bindings/crypto/img-hash.txt | 26 ++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/crypto/img-hash.txt diff --git a/Documentation/devicetree/bindings/crypto/img-hash.txt b/Documentation/devicetree/bindings/crypto/img-hash.txt new file mode 100644 index 0000000..72764a8 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/img-hash.txt @@ -0,0 +1,26 @@ +* Imagination Technologies Ltd. Hash Accelerator + +The hash accelerator provides hardware hashing acceleration for +SHA1, SHA224, SHA256 and MD5 hashes + +Required properties: + +- compatible : "img,hash-accelerator" +- reg : Offset and length of the register set for the module, and the DMA port +- interrupts : The designated IRQ line for the hashing module. +- dmas : DMA specifier as per Documentation/devicetree/bindings/dma/dma.txt +- dma-names : Should be "tx" +- clocks : Clock specifier +- clock-names : "hash_clk" Used to clock data through the accelerator + +Example: + + hash: hash@18149600 { + compatible = "img,hash-accelerator"; + reg = <0x18149600 0x100, 0x18101100 0x4>; + interrupts = <59 4 2>; + dmas = <&dma 8 0xffffffff>; + dma-names = "tx"; + clocks = <&hash_clk>; + clock-names = "hash_clk"; + }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html