arm64: tegra: Add NVIDIA Jetson AGX Orin Developer Kit support

The Jetson AGX Orin Developer Kit is a continuation of the Jetson
Developer Kit line using the new NVIDIA Tegra234 (Orin) SoC.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/Makefile

@@ -12,3 +12,4 @@ dtb-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra194-p2972-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra194-p3509-0000+p3668-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra194-p3509-0000+p3668-0001.dtb
 dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-sim-vdk.dtb
+dtb-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-p3737-0000+p3701-0000.dtb

arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi

+// SPDX-License-Identifier: GPL-2.0
+
+#include "tegra234.dtsi"
+
+/ {
+	model = "NVIDIA Jetson AGX Orin";
+	compatible = "nvidia,p3701-0000", "nvidia,tegra234";
+
+	bus@0 {
+		mmc@3460000 {
+			status = "okay";
+			bus-width = <8>;
+			non-removable;
+			only-1-8-v;
+		};
+
+		rtc@c2a0000 {
+			status = "okay";
+		};
+
+		pmc@c360000 {
+			nvidia,invert-interrupt;
+		};
+	};
+};

arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts

+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "tegra234-p3701-0000.dtsi"
+#include "tegra234-p3737-0000.dtsi"
+
+/ {
+	model = "NVIDIA Jetson AGX Orin Developer Kit";
+	compatible = "nvidia,p3737-0000+p3701-0000", "nvidia,p3701-0000", "nvidia,tegra234";
+
+	aliases {
+		mmc3 = "/bus@0/mmc@3460000";
+		serial0 = &tcu;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+		stdout-path = "serial0:115200n8";
+	};
+
+	serial {
+		status = "okay";
+	};
+};

arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi

+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	compatible = "nvidia,p3737-0000";
+};