[v2,1/2] dt-bindings: rng: add bindings doc for Keystone SA HWRNG driver

Message ID 1520962411-18208-2-git-send-email-vitalya@ti.com
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  • [v2,1/2] dt-bindings: rng: add bindings doc for Keystone SA HWRNG driver
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Commit Message

Vitaly Andrianov March 13, 2018, 5:33 p.m.
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@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 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

Patch

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>;
+};