arch/arm64/boot/dts/nvidia/tegra194-p3668.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/nvidia/tegra194-p3668.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/nvidia/tegra194-p3668.dtsi
Extension
.dtsi
Size
6527 bytes
Lines
314
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#include "tegra194.dtsi"

#include <dt-bindings/mfd/max77620.h>

/ {
	aliases {
		ethernet0 = "/bus@0/ethernet@2490000";
		i2c0 = "/bpmp/i2c";
		i2c1 = "/bus@0/i2c@3160000";
		i2c2 = "/bus@0/i2c@c240000";
		i2c3 = "/bus@0/i2c@3180000";
		i2c4 = "/bus@0/i2c@3190000";
		i2c5 = "/bus@0/i2c@31c0000";
		i2c6 = "/bus@0/i2c@c250000";
		i2c7 = "/bus@0/i2c@31e0000";
		rtc0 = "/bpmp/i2c/pmic@3c";
		rtc1 = "/bus@0/rtc@c2a0000";
		serial0 = &tcu;
	};

	chosen {
		bootargs = "console=ttyTCU0,115200n8";
		stdout-path = "serial0:115200n8";
	};

	bus@0 {
		ethernet@2490000 {
			status = "okay";

			phy-reset-gpios = <&gpio TEGRA194_MAIN_GPIO(R, 1) GPIO_ACTIVE_LOW>;
			phy-handle = <&phy>;
			phy-mode = "rgmii-id";

			mdio {
				#address-cells = <1>;
				#size-cells = <0>;

				phy: ethernet-phy@0 {
					compatible = "ethernet-phy-ieee802.3-c22";
					reg = <0x0>;
					interrupt-parent = <&gpio>;
					interrupts = <TEGRA194_MAIN_GPIO(G, 4) IRQ_TYPE_LEVEL_LOW>;
					#phy-cells = <0>;
					wakeup-source;
				};
			};
		};

		memory-controller@2c00000 {
			status = "okay";
		};

		i2c@c250000 {
			status = "okay";

			power-sensor@40 {
				compatible = "ti,ina3221";
				reg = <0x40>;
				#address-cells = <1>;
				#size-cells = <0>;

				input@0 {
					reg = <0x0>;
					label = "VDD_IN";
					shunt-resistor-micro-ohms = <5000>;
				};
				input@1 {
					reg = <0x1>;
					label = "VDD_CPU_GPU_CV";

Annotation

Implementation Notes