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

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

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
Extension
.dtsi
Size
29581 bytes
Lines
1208
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
/*
 * Copyright (C) 2021-2026 Marek Vasut
 */

#include "imx8mp.dtsi"

/ {
	model = "DH electronics i.MX8M Plus DHCOM SoM";
	compatible = "dh,imx8mp-dhcom-som", "fsl,imx8mp";

	aliases {
		ethernet0 = &eqos;
		ethernet1 = &fec;
		rtc0 = &rv3032;
		rtc1 = &snvs_rtc;
		spi0 = &flexspi;
	};

	memory@40000000 {
		device_type = "memory";
		/* Memory size 512 MiB..8 GiB will be filled by U-Boot */
		reg = <0x0 0x40000000 0 0x08000000>;
	};

	reg_eth_vio: regulator-eth-vio {
		compatible = "regulator-fixed";
		gpio = <&ioexp 2 GPIO_ACTIVE_LOW>;
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-name = "eth_vio";
		vin-supply = <&buck4>;
	};

	reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
		compatible = "regulator-fixed";
		enable-active-high;
		gpio = <&gpio2 19 0>; /* SD2_RESET */
		off-on-delay-us = <12000>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_usdhc2_vmmc>;
		regulator-max-microvolt = <3300000>;
		regulator-min-microvolt = <3300000>;
		regulator-name = "VDD_3V3_SD";
		startup-delay-us = <100>;
		vin-supply = <&buck4>;
	};

	reg_vdd_3p3v_awo: regulator-vdd-3p3v-awo {	/* VDD_3V3_AWO */
		compatible = "regulator-fixed";
		regulator-always-on;
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-name = "VDD_3P3V_AWO";
	};

	wlan_pwrseq: wifi-pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&ioexp 1 GPIO_ACTIVE_LOW>;
	};
};

&A53_0 {
	cpu-supply = <&buck2>;
};

&A53_1 {
	cpu-supply = <&buck2>;

Annotation

Implementation Notes