arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts
Extension
.dts
Size
7570 bytes
Lines
351
Domain
Architecture Layer
Bucket
arch/arm
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) 2025 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
 */

/dts-v1/;

#include "imx28.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	compatible = "amarula,imx28-rmm", "fsl,imx28";
	model = "Amarula i.MX28 rmm";

	memory@40000000 {
		reg = <0x40000000 0x08000000>;
		device_type = "memory";
	};

	backlight {
		compatible = "pwm-backlight";
		pwms = <&pwm 4 5000000 0>;
		brightness-levels = <0 255>;
		num-interpolated-steps = <255>;
		default-brightness-level = <255>;
		power-supply = <&reg_5v>;
	};

	beeper {
		compatible = "pwm-beeper";
		pwms = <&pwm 7 100000 0>;
	};

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

		led-0 {
			gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
			default-state = "off";
		};

		led-1 {
			gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
			default-state = "off";
		};

		led-2 {
			gpios = <&gpio3 17 GPIO_ACTIVE_HIGH>;
			default-state = "off";
		};
	};

	reg_1v8: regulator-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "1v8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	reg_3v3: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

Annotation

Implementation Notes