ARM: OMAP4: Add local timer support for Device Tree

Add cortex-a9 local timer support for all OMAP4 based
SOCs using DT.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index cb18d2a..2b670ab 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -45,6 +45,12 @@
 		cache-level = <2>;
 	};
 
+	local-timer@0x48240600 {
+		compatible = "arm,cortex-a9-twd-timer";
+		reg = <0x48240600 0x20>;
+		interrupts = <1 13 0x304>;
+	};
+
 	/*
 	 * The soc node represents the soc top level view. It is uses for IPs
 	 * that are not memory mapped in the MPU view or for the MPU itself.