arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi
Extension
.dtsi
Size
6413 bytes
Lines
279
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+ OR MIT)
/*
 * Copyright 2018 Boundary Devices
 * Copyright 2021 Lucas Stach <dev@lynxeye.de>
 */

#include "imx8mq.dtsi"

/ {
	model = "Boundary Devices i.MX8MQ Nitrogen8M";
	compatible = "boundary,imx8mq-nitrogen8m-som", "fsl,imx8mq";

	chosen {
		stdout-path = &uart1;
	};

	reg_1p8v: regulator-fixed-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "1P8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	reg_snvs: regulator-fixed-snvs {
		compatible = "regulator-fixed";
		regulator-name = "VDD_SNVS";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};
};

&{/opp-table/opp-800000000} {
	opp-microvolt = <1000000>;
};

&{/opp-table/opp-1000000000} {
	opp-microvolt = <1000000>;
};

&A53_0 {
	cpu-supply = <&reg_arm_dram>;
};

&A53_1 {
	cpu-supply = <&reg_arm_dram>;
};

&A53_2 {
	cpu-supply = <&reg_arm_dram>;
};

&A53_3 {
	cpu-supply = <&reg_arm_dram>;
};

&fec1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_fec1>;
	phy-mode = "rgmii-id";
	phy-handle = <&ethphy0>;
	fsl,magic-packet;

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

		ethphy0: ethernet-phy@4 {
			compatible = "ethernet-phy-ieee802.3-c22";
			reg = <4>;
			interrupt-parent = <&gpio1>;

Annotation

Implementation Notes