ARM: dts: pxa3xx: add gcu node

Add a device node for hardware graphic acceleration.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

arch/arm/boot/dts/pxa3xx.dtsi

@@ -300,4 +300,12 @@ timer@40a00000 {
 		clocks = <&clks CLK_OSTIMER>;
 		status = "okay";
 	};
+
+	gcu: display-controller@54000000 {
+		compatible = "marvell,pxa300-gcu";
+		reg = <0x54000000 0x1000>;
+		interrupts = <39>;
+		clocks = <&clks CLK_PXA300_GCU>;
+		status = "disabled";
+	};
 };