arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts
Extension
.dts
Size
24541 bytes
Lines
991
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-later OR MIT
/*
 * Copyright (c) 2023-2024 TQ-Systems GmbH <linux@ew.tq-group.com>,
 * D-82229 Seefeld, Germany.
 * Author: Martin Schmiedel
 * Author: Alexander Stein
 */

/dts-v1/;

#include <dt-bindings/leds/common.h>
#include <dt-bindings/net/ti-dp83867.h>
#include <dt-bindings/phy/phy-imx8-pcie.h>
#include <dt-bindings/pwm/pwm.h>
#include "imx8mp-tqma8mpql.dtsi"

/ {
	model = "TQ-Systems i.MX8MPlus TQMa8MPxL on MBa8MP-RAS314";
	compatible = "tq,imx8mp-tqma8mpql-mba8mp-ras314", "tq,imx8mp-tqma8mpql", "fsl,imx8mp";
	chassis-type = "embedded";

	chosen {
		stdout-path = &uart4;
	};

	aliases {
		mmc0 = &usdhc3;
		mmc1 = &usdhc2;
		mmc2 = &usdhc1;
		rtc0 = &pcf85063;
		rtc1 = &snvs_rtc;
	};

	/* X8 */
	backlight_lvds: backlight {
		compatible = "pwm-backlight";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_backlight>;
		pwms = <&pwm2 0 5000000 0>;
		brightness-levels = <0 4 8 16 32 64 128 255>;
		default-brightness-level = <7>;
		power-supply = <&reg_vcc_12v0>;
		enable-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
		status = "disabled";
	};

	/* X7 + X8 */
	display: display {
		/*
		 * Display is not fixed, so compatible has to be added from
		 * DT overlay
		 */
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_lvdsdisplay>;
		power-supply = <&reg_vcc_3v3>;
		enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
		backlight = <&backlight_lvds>;
		status = "disabled";
	};

	gpio-leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_gpioled>;

		led-1 {
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_STATUS;
			function-enumerator = <0>;
			gpios = <&gpio4 18 GPIO_ACTIVE_HIGH>;

Annotation

Implementation Notes