ARM: mxs: enable ocotp for i.MX23 and i.MX28

This patch enables On Chip OTP support for i.MX23 and i.MX28 SoCs,
but keeps the old compatible string.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index b995333..1c6c075 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -383,9 +383,11 @@
 			};
 
 			ocotp@8002c000 {
-				compatible = "fsl,ocotp";
+				compatible = "fsl,imx23-ocotp", "fsl,ocotp";
+				#address-cells = <1>;
+				#size-cells = <1>;
 				reg = <0x8002c000 0x2000>;
-				status = "disabled";
+				clocks = <&clks 15>;
 			};
 
 			axi-ahb@8002e000 {
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 4e073e8..c5b57d4 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -936,9 +936,11 @@
 			};
 
 			ocotp: ocotp@8002c000 {
-				compatible = "fsl,ocotp";
+				compatible = "fsl,imx28-ocotp", "fsl,ocotp";
+				#address-cells = <1>;
+				#size-cells = <1>;
 				reg = <0x8002c000 0x2000>;
-				status = "disabled";
+				clocks = <&clks 25>;
 			};
 
 			axi-ahb@8002e000 {