arch/arm64/boot/dts/freescale/mba8mx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/mba8mx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/mba8mx.dtsi
Extension
.dtsi
Size
8137 bytes
Lines
390
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 2020-2021 TQ-Systems GmbH
 */

#include <dt-bindings/net/ti-dp83867.h>

/* TQ-Systems GmbH MBa8Mx baseboard */

/ {
	backlight_lvds: backlight {
		compatible = "pwm-backlight";
		pwms = <&pwm3 0 5000000 0>;
		brightness-levels = <0 4 8 16 32 64 128 255>;
		default-brightness-level = <7>;
		power-supply = <&reg_12v>;
		enable-gpios = <&expander2 2 GPIO_ACTIVE_HIGH>;
		status = "disabled";
	};

	beeper {
		compatible = "pwm-beeper";
		pwms = <&pwm4 0 250000 0>;
		beeper-hz = <4000>;
		amp-supply = <&reg_vcc_3v3>;
	};

	chosen {
		stdout-path = &uart3;
	};

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

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_gpiobutton>;
		autorepeat;

		switch-1 {
			label = "switch1";
			linux,code = <BTN_0>;
			gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};

		btn2: switch-2 {
			label = "switch2";
			linux,code = <BTN_1>;
			gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};

		switch-3 {
			label = "switch3";
			linux,code = <BTN_2>;
			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};
	};

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

Annotation

Implementation Notes