arm/dts: OMAP4: Add i2c controller nodes

Add i2c controllers nodes into the main ocp bus.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>

arch/arm/boot/dts/omap4.dtsi

@@ -127,5 +127,33 @@ uart4: serial@0x4806e000 {
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
 		};
+
+		i2c1: i2c@48070000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c1";
+		};
+
+		i2c2: i2c@48072000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c2";
+		};
+
+		i2c3: i2c@48060000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c3";
+		};
+
+		i2c4: i2c@48350000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c4";
+		};
 	};
 };