arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
Extension
.dts
Size
7378 bytes
Lines
352
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 (C) 2023 Marek Vasut <marex@denx.de>
 *
 * DHCOM iMX8MP variant:
 * DHCM-iMX8ML8-C160-R409-F1638-SPI16-GE-CAN2-SD-RTC-WBTA-ADC-T-RGB-CSI2-HS-I-01D2
 * DHCOM PCB number: 660-100 or newer
 * PDK3 PCB number: 669-100 or newer
 */

/dts-v1/;

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

/ {
	model = "DH electronics i.MX8M Plus DHCOM Premium Developer Kit (3)";
	compatible = "dh,imx8mp-dhcom-pdk3", "dh,imx8mp-dhcom-som",
		     "fsl,imx8mp";

	chosen {
		stdout-path = &uart1;
	};

	clk_ext_audio_codec: clock-codec {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <24000000>;
	};

	clk_xtal25: clock-xtal25 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <25000000>;
	};

	gpio-keys {
		compatible = "gpio-keys";

		button-0 {
			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>; /* GPIO A */
			label = "TA1-GPIO-A";
			linux,code = <KEY_A>;
			pinctrl-0 = <&pinctrl_dhcom_a>;
			pinctrl-names = "default";
			wakeup-source;
		};

		button-1 {
			gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; /* GPIO B */
			label = "TA2-GPIO-B";
			linux,code = <KEY_B>;
			pinctrl-0 = <&pinctrl_dhcom_b>;
			pinctrl-names = "default";
			wakeup-source;
		};

		button-2 {
			gpios = <&gpio5 2 GPIO_ACTIVE_LOW>; /* GPIO C */
			label = "TA3-GPIO-C";
			linux,code = <KEY_C>;
			pinctrl-0 = <&pinctrl_dhcom_c>;
			pinctrl-names = "default";
			wakeup-source;
		};

		button-3 {
			gpios = <&gpio5 22 GPIO_ACTIVE_LOW>; /* GPIO E */
			label = "TA4-GPIO-E";

Annotation

Implementation Notes