ARM: tegra: Add Tegra30 GMI support

Add a device node for the GMI controller found on Tegra30.
Signed-off-by: Mirza Krak <mirza.krak@gmail.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Colibri T20/T30 on EvalBoard V3.x and GMI-Memory Board
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30.dtsi

@@ -439,6 +439,19 @@ uarte: serial@70006400 {
 		status = "disabled";
 	};
 
+	gmi@70009000 {
+		compatible = "nvidia,tegra30-gmi";
+		reg = <0x70009000 0x1000>;
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0 0x48000000 0x7ffffff>;
+		clocks = <&tegra_car TEGRA30_CLK_NOR>;
+		clock-names = "gmi";
+		resets = <&tegra_car 42>;
+		reset-names = "gmi";
+		status = "disabled";
+	};
+
 	pwm: pwm@7000a000 {
 		compatible = "nvidia,tegra30-pwm", "nvidia,tegra20-pwm";
 		reg = <0x7000a000 0x100>;