summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorVitaly Andrianov <vitalya@ti.com>2018-03-13 13:33:30 -0400
committerHerbert Xu <herbert@gondor.apana.org.au>2018-03-23 23:40:05 +0800
commit2805894c1ee0e598d59f055b8225ce4d0d6b2a19 (patch)
tree8118e7718c79bd2708a8ab7f30153d5c90cffd44
parent1d17cbfbb55cd80890312dd8c64d0008b25b05c0 (diff)
dt-bindings: rng: add bindings doc for Keystone SA HWRNG driver
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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--Documentation/devicetree/bindings/rng/ks-sa-rng.txt21
1 files changed, 21 insertions, 0 deletions
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 000000000000..b7a65b487901
--- /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>;
+};