[PATCH V2 1/4] dt-bindings: fsl: scu: add ocotp binding

[Peng Fan]

NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as
system controller(SCU), the ocotp controller is being controlled
by the SCU, so Linux need use RPC to SCU for ocotp handling. This
patch adds binding doc for i.MX8 SCU OCOTP driver.

Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Aisheng Dong <aisheng.dong@xxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
Cc: Anson Huang <anson.huang@xxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---

V2:
 Move OCOTP to end, add example, add "scu"

 .../devicetree/bindings/arm/freescale/fsl,scu.txt  | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 5d7dbabbb784..f378922906f6 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -133,6 +133,18 @@ RTC bindings based on SCU Message Protocol
 Required properties:
 - compatible: should be "fsl,imx8qxp-sc-rtc";
 
+OCOTP bindings based on SCU Message Protocol
+------------------------------------------------------------
+Required properties:
+- compatible:		Should be "fsl,imx8qxp-scu-ocotp"
+- #address-cells:	Must be 1. Contains byte index
+- #size-cells:		Must be 1. Contains byte length
+
+Optional Child nodes:
+
+- Data cells of ocotp:
+  Detailed bindings are described in bindings/nvmem/nvmem.txt
+
 Example (imx8qxp):
 -------------
 aliases {
@@ -177,6 +189,16 @@ firmware {
 			...
 		};
 
+		ocotp: imx8qx-ocotp {
+			compatible = "fsl,imx8qxp-scu-ocotp";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			fec_mac0: mac@2c4 {
+				reg = <0x2c4 8>;
+			};
+		};
+
 		pd: imx8qx-pd {
 			compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
 			#power-domain-cells = <1>;
-- 
2.16.4