xref: /freebsd/sys/contrib/device-tree/Bindings/crypto/img-hash.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1Imagination Technologies hardware hash accelerator
2
3The hash accelerator provides hardware hashing acceleration for
4SHA1, SHA224, SHA256 and MD5 hashes
5
6Required properties:
7
8- compatible : "img,hash-accelerator"
9- reg : Offset and length of the register set for the module, and the DMA port
10- interrupts : The designated IRQ line for the hashing module.
11- dmas : DMA specifier as per Documentation/devicetree/bindings/dma/dma.txt
12- dma-names : Should be "tx"
13- clocks : Clock specifiers
14- clock-names : "sys" Used to clock the hash block registers
15		"hash" Used to clock data through the accelerator
16
17Example:
18
19	hash: hash@18149600 {
20	compatible = "img,hash-accelerator";
21		reg = <0x18149600 0x100>, <0x18101100 0x4>;
22		interrupts = <GIC_SHARED 59 IRQ_TYPE_LEVEL_HIGH>;
23		dmas = <&dma 8 0xffffffff 0>;
24		dma-names = "tx";
25		clocks = <&cr_periph SYS_CLK_HASH>, <&clk_periph PERIPH_CLK_ROM>;
26		clock-names = "sys", "hash";
27	};
28