arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
Extension
.dtsi
Size
15542 bytes
Lines
545
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 2024 Variscite Ltd.
 *
 * Author: Tarang Raval <tarang.raval@siliconsignals.io>
 */

/dts-v1/;

#include <dt-bindings/phy/phy-imx8-pcie.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/usb/pd.h>
#include "imx8mp.dtsi"

/ {
	model = "Variscite VAR-SOM-MX8M Plus module";

	memory@40000000 {
		device_type = "memory";
		reg = <0x0 0x40000000 0 0xc0000000>,
		      <0x1 0x00000000 0 0xc0000000>;
	};

	iw61x_pwrseq: wifi-pwrseq {
		compatible = "mmc-pwrseq-simple";
		post-power-on-delay-ms = <100>;
		power-off-delay-us = <10000>;
		reset-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>, /* WIFI_RESET */
			      <&gpio2 19 GPIO_ACTIVE_LOW>; /* WIFI_PWR_EN */
	};

	reg_audio_supply: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "wm8904-supply";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	reg_phy_supply: regulator-phy-supply {
		compatible = "regulator-fixed";
		regulator-name = "phy-supply";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-enable-ramp-delay = <20000>;
		gpio = <&gpio2 20 GPIO_ACTIVE_HIGH>;
		enable-active-high;
		regulator-always-on;
	};

	reg_phy_vddio: regulator-phy-vddio {
		compatible = "regulator-fixed";
		regulator-name = "vddio-1v8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	sound {
		compatible = "simple-audio-card";
		simple-audio-card,bitclock-master = <&codec_dai>;
		simple-audio-card,format = "i2s";
		simple-audio-card,frame-master = <&codec_dai>;
		simple-audio-card,mclk-fs = <256>;
		simple-audio-card,name = "wm8904-audio";
		simple-audio-card,routing =
			"Headphone Jack", "HPOUTL",
			"Headphone Jack", "HPOUTR",
			"IN2L", "Line In Jack",
			"IN2R", "Line In Jack",
			"IN1L", "Microphone Jack",

Annotation

Implementation Notes