arm64: tegra: Enable QSPI on Jetson Nano

This patch enables QSPI on Jetson Nano.
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts

@@ -782,6 +782,18 @@ xbar_dmic2_ep: endpoint {
 		};
 	};
 
+	spi@70410000 {
+		status = "okay";
+
+		flash@0 {
+			compatible = "spi-nor";
+			reg = <0>;
+			spi-max-frequency = <104000000>;
+			spi-tx-bus-width = <2>;
+			spi-rx-bus-width = <2>;
+		};
+	};
+
 	clk32k_in: clock@0 {
 		compatible = "fixed-clock";
 		clock-frequency = <32768>;

arch/arm64/boot/dts/nvidia/tegra210.dtsi

@@ -1732,8 +1732,9 @@ spi@70410000 {
 		interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
 		#address-cells = <1>;
 		#size-cells = <0>;
-		clocks = <&tegra_car TEGRA210_CLK_QSPI>;
-		clock-names = "qspi";
+		clocks = <&tegra_car TEGRA210_CLK_QSPI>,
+			 <&tegra_car TEGRA210_CLK_QSPI_PM>;
+		clock-names = "qspi", "qspi_out";
 		resets = <&tegra_car 211>;
 		reset-names = "qspi";
 		dmas = <&apbdma 5>, <&apbdma 5>;