arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
Extension
.dts
Size
16362 bytes
Lines
702
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)
/*
 * Device Tree file for Boundary Devices i.MX8MMini Nitrogen8MM Rev2 board.
 * Adrien Grassein <adrien.grassein@gmail.com.com>
 */
/dts-v1/;
#include "imx8mm.dtsi"

/ {
	model = "Boundary Devices i.MX8MMini Nitrogen8MM Rev2";
	compatible = "boundary,imx8mm-nitrogen8mm", "fsl,imx8mm";

	reg_vref_1v8: regulator-vref-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "vref-1v8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	reg_vref_3v3: regulator-vref-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "vref-3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	reg_wlan_vmmc: regulator-wlan-vmmc {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_reg_wlan_vmmc>;
		regulator-name = "reg_wlan_vmmc";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		gpio = <&gpio3 20 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	sound-wm8960 {
		audio-cpu = <&sai1>;
		audio-codec = <&wm8960>;
		audio-routing =
			"Headphone Jack", "HP_L",
			"Headphone Jack", "HP_R",
			"Ext Spk", "SPK_LP",
			"Ext Spk", "SPK_LN",
			"Ext Spk", "SPK_RP",
			"Ext Spk", "SPK_RN",
			"RINPUT1", "Mic Jack",
			"Mic Jack", "MICB";
		compatible = "fsl,imx-audio-wm8960";
		/* JD2: hp detect high for headphone*/
		hp-det-gpios = <&gpio4 28 GPIO_ACTIVE_HIGH>;
		/* Jack is not stuffed */
		mic-det-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
		model = "wm8960-audio";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_sound_wm8960>;
	};
};

&A53_0 {
	cpu-supply = <&reg_buck3>;
};

&A53_1 {
	cpu-supply = <&reg_buck3>;
};

&A53_2 {
	cpu-supply = <&reg_buck3>;

Annotation

Implementation Notes