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

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

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-dhcom-picoitx.dts
Extension
.dts
Size
3467 bytes
Lines
180
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) 2023-2024 Marek Vasut <marex@denx.de>
 *
 * DHCOM iMX8MP variant:
 * DHCM-iMX8ML8-C160-R204-F1638-SPI16-E-SD-RTC-T-RGB-I-01D2
 * DHCOM PCB number: 660-200 or newer
 * PicoITX PCB number: 487-600 or newer
 */

/dts-v1/;

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

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

	chosen {
		stdout-path = &uart1;
	};

	led {
		compatible = "gpio-leds";

		led-0 {
			color = <LED_COLOR_ID_YELLOW>;
			default-state = "off";
			function = LED_FUNCTION_INDICATOR;
			gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>; /* GPIO I */
			pinctrl-0 = <&pinctrl_dhcom_i>;
			pinctrl-names = "default";
		};
	};
};

&eqos {	/* First ethernet */
	pinctrl-0 = <&pinctrl_eqos_rmii>;
	phy-handle = <&ethphy0f>;
	phy-mode = "rmii";

	assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_266M>,
				 <&clk IMX8MP_SYS_PLL2_100M>,
				 <&clk IMX8MP_SYS_PLL2_50M>;
	assigned-clock-rates = <0>, <100000000>, <50000000>;
};

&ethphy0g {	/* Micrel KSZ9131RNXI */
	status = "disabled";
};

&ethphy0f {	/* SMSC LAN8740Ai */
	status = "okay";
};

&fec {
	status = "disabled";
};

&flexcan1 {
	status = "okay";
};

&gpio1 {
	gpio-line-names =
		"DHCOM-G", "", "", "",
		"", "DHCOM-I", "PicoITX-HW0", "PicoITX-HW2",
		"DHCOM-B", "DHCOM-A", "", "DHCOM-H", "", "", "", "",

Annotation

Implementation Notes