Commit 13b0aca3 authored by Thierry Reding's avatar Thierry Reding
Browse files

arm64: tegra: Support Jetson Orin NX 



This adds a device tree for the Jetson Orin NX module, which is Jetson
AGX Orin's little sibling with 6 or 8 ARM Cortex-A78AE cores, an Ampere
GPU (1024 GPU and 32 tensor cores) and a number of accelerators for
machine learning, image processing and more.

The Jetson Orin NX comes with either 8 or 16 GiB of 128-bit LPDDR5 and
supports NVME for mass storage.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent d89baa52

arch/arm64/boot/dts/nvidia/tegra234-p3767-0000.dtsi

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// SPDX-License-Identifier: GPL-2.0



#include "tegra234-p3767.dtsi"



/ {

	compatible = "nvidia,p3767-0000", "nvidia,tegra234";

	model = "NVIDIA Jetson Orin NX";



	bus@0 {

		hda@3510000 {

			nvidia,model = "NVIDIA Jetson Orin NX HDA";

		};

	};

};

arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi

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// SPDX-License-Identifier: GPL-2.0



#include "tegra234.dtsi"



/ {

	compatible = "nvidia,p3767", "nvidia,tegra234";



	bus@0 {

		i2c@3160000 {

			status = "okay";



			eeprom@50 {

				compatible = "atmel,24c02";

				reg = <0x50>;



				label = "module";

				vcc-supply = <&vdd_1v8_hs>;

				address-width = <8>;

				pagesize = <8>;

				size = <256>;

				read-only;

			};

		};



		spi@3270000 {

			status = "okay";



			flash@0 {

				compatible = "jedec,spi-nor";

				reg = <0>;

				spi-max-frequency = <136000000>;

				spi-tx-bus-width = <4>;

				spi-rx-bus-width = <4>;

			};

		};



		/*

		 * This only exists on Jetson Orin Nano Developer Kit (SKU 5)

		 * but UEFI needs this and will remove it on devices where it

		 * doesn't exist.

		 */

		mmc@3400000 {

			status = "okay";

			bus-width = <4>;

			cd-gpios = <&gpio TEGRA234_MAIN_GPIO(G, 7) GPIO_ACTIVE_HIGH>;

			disable-wp;

		};



		hda@3510000 {

			status = "okay";

		};



		padctl@3520000 {

			vclamp-usb-supply = <&vdd_1v8_ao>;

			avdd-usb-supply = <&vdd_3v3_ao>;

		};



		rtc@c2a0000 {

			status = "okay";

		};



		pmc@c360000 {

			nvidia,invert-interrupt;

		};

	};



	vdd_5v0_sys: regulator-vdd-5v0-sys {

		compatible = "regulator-fixed";

		regulator-name = "VDD_5V0_SYS";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-always-on;

	};



	vdd_1v8_hs: regulator-vdd-1v8-hs {

		compatible = "regulator-fixed";

		regulator-name = "VDD_1V8_HS";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

		regulator-always-on;

	};



	vdd_1v8_ao: regulator-vdd-1v8-ao {

		compatible = "regulator-fixed";

		regulator-name = "VDD_1V8_AO";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

		regulator-always-on;

		vin-supply = <&vdd_5v0_sys>;

	};



	vdd_3v3_ao: regulator-vdd-3v3-ao {

		compatible = "regulator-fixed";

		regulator-name = "VDD_3V3_AO";

		regulator-min-microvolt = <33000000>;

		regulator-max-microvolt = <33000000>;

		regulator-always-on;

		vin-supply = <&vdd_5v0_sys>;

	};



	thermal-zones {

		/*

		 * This monitoring is far from optimal, but it's good enough

		 * at this stage.

		 */

		cpu-thermal {

			polling-delay = <1000>;

			polling-delay-passive = <1000>;

			status = "okay";



			trips {

				critical {

					temperature = <104500>;

					hysteresis = <0>;

					type = "critical";

				};



				hot {

					temperature = <99000>;

					hysteresis = <1000>;

					type = "hot";

				};



				board_trip_passive: passive {

					temperature = <95000>;

					hysteresis = <2000>;

					type = "passive";

				};



				board_trip_active2: active-2 {

					temperature = <80000>;

					hysteresis = <4000>;

					type = "active";

				};



				board_trip_active1: active-1 {

					temperature = <65000>;

					hysteresis = <4000>;

					type = "active";

				};



				board_trip_active0: active-0 {

					temperature = <50000>;

					hysteresis = <4000>;

					type = "active";

				};

			};



			cooling-maps {

				passive {

					cooling-device = <&fan 3 3>;

					trip = <&board_trip_passive>;

				};



				active2 {

					cooling-device = <&fan 2 3>;

					trip = <&board_trip_active2>;

				};



				active1 {

					cooling-device = <&fan 1 2>;

					trip = <&board_trip_active1>;

				};



				active0 {

					cooling-device = <&fan 0 1>;

					trip = <&board_trip_active0>;

				};

			};

		};

	};

};