ARM: tegra: Add External Memory Controller node on Tegra114

Add External Memory Controller node to the device-tree.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: clamor-s

arch/arm/boot/dts/nvidia/tegra114.dtsi

@@ -259,6 +259,8 @@
 		reg = <0x60006000 0x1000>;
 		#clock-cells = <1>;
 		#reset-cells = <1>;
+
+		nvidia,external-memory-controller = <&emc>;
 	};
 
 	flow-controller@60007000 {
@@ -655,6 +657,16 @@
 		#iommu-cells = <1>;
 	};
 
+	emc: external-memory-controller@7001b000 {
+		compatible = "nvidia,tegra114-emc";
+		reg = <0x7001b000 0x800>;
+		interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA114_CLK_EMC>;
+		clock-names = "emc";
+
+		nvidia,memory-controller = <&mc>;
+	};
+
 	hda@70030000 {
 		compatible = "nvidia,tegra114-hda", "nvidia,tegra30-hda";
 		reg = <0x70030000 0x10000>;