The Keystone SA module has a hardware random generator module. This commit adds binding doc for the KS2 SA HWRNG driver. Signed-off-by: Vitaly Andrianov <vitalya@xxxxxx> Signed-off-by: Murali Karicheri <m-karicheri2@xxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> --- Documentation/devicetree/bindings/rng/ks-sa-rng.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/rng/ks-sa-rng.txt diff --git a/Documentation/devicetree/bindings/rng/ks-sa-rng.txt b/Documentation/devicetree/bindings/rng/ks-sa-rng.txt new file mode 100644 index 0000000..b7a65b4 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/ks-sa-rng.txt @@ -0,0 +1,21 @@ +Keystone SoC Hardware Random Number Generator(HWRNG) Module + +On Keystone SoCs HWRNG module is a submodule of the Security Accelerator. + +- compatible: should be "ti,keystone-rng" +- ti,syscon-sa-cfg: phandle to syscon node of the SA configuration registers. + This registers are shared between hwrng and crypto drivers. +- clocks: phandle to the reference clocks for the subsystem +- clock-names: functional clock name. Should be set to "fck" +- reg: HWRNG module register space + +Example: +/* K2HK */ + +rng@24000 { + compatible = "ti,keystone-rng"; + ti,syscon-sa-cfg = <&sa_config>; + clocks = <&clksa>; + clock-names = "fck"; + reg = <0x24000 0x1000>; +}; -- 2.7.4