arm/dts: omap3-beagle: Add twl4030 and i2c EEPROM

Add required clock frequencies for the i2c client devices existing
on beagle board.

Add the twl4030 basic description with only the twl_rtc module.

Add the EEPROM node.

Based on original patch from Manju:
http://www.spinics.net/lists/linux-omap/msg55831.htmlSigned-off-by: NBenoit Cousson <b-cousson@ti.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NRob Herring <rob.herring@calxeda.com>

arch/arm/boot/dts/omap3-beagle.dts

@@ -18,3 +18,32 @@
 		reg = <0x80000000 0x20000000>; /* 512 MB */
 	};
 };
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+/include/ "twl4030.dtsi"
+
+&i2c2 {
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+
+	/*
+	 * Display monitor features are burnt in the EEPROM
+	 * as EDID data.
+	 */
+	eeprom@50 {
+		compatible = "ti,eeprom";
+		reg = <0x50>;
+	};
+};