arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts
Extension
.dts
Size
29951 bytes
Lines
1214
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) 2022 Marek Vasut <marex@denx.de>
 */

/dts-v1/;

#include <dt-bindings/net/qca-ar803x.h>
#include <dt-bindings/phy/phy-imx8-pcie.h>
#include "imx8mp.dtsi"

/ {
	model = "Data Modul i.MX8M Plus eDM SBC";
	compatible = "dmo,imx8mp-data-modul-edm-sbc", "fsl,imx8mp";

	aliases {
		rtc0 = &rtc;
		rtc1 = &snvs_rtc;
	};

	chosen {
		stdout-path = &uart3;
	};

	memory@40000000 {
		device_type = "memory";
		/* There are 1/2/4 GiB options, adjusted by bootloader. */
		reg = <0x0 0x40000000 0 0x40000000>;
	};

	backlight: backlight {
		compatible = "pwm-backlight";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_panel_backlight>;
		brightness-levels = <0 1 10 20 30 40 50 60 70 75 80 90 100>;
		default-brightness-level = <7>;
		enable-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
		pwms = <&pwm1 0 5000000 0>;
		/* Disabled by default, unless display board plugged in. */
		status = "disabled";
	};

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

	clk_pwm4: clock-pwm4 {
		compatible = "pwm-clock";
		#clock-cells = <0>;
		clock-frequency = <12000000>;
		clock-output-names = "codec-pwm4";
		/*
		 * 1 / 83 ns ~= 12 MHz , but since the PWM input clock is 24 MHz
		 * and the calculated PWM period is 1 and duty cycle is 50%, the
		 * result is exactly 12 MHz, which is fine for SGTL5000 MCLK.
		 */
		pwms = <&pwm4 0 83 0>;
	};

	hdmi-connector {
		compatible = "hdmi-connector";
		label = "J17";
		type = "a";

		port {
			hdmi_connector_in: endpoint {
				remote-endpoint = <&hdmi_tx_out>;
			};

Annotation

Implementation Notes