arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-mini.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-mini.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-mini.dts
Extension
.dts
Size
9862 bytes
Lines
494
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) 2021 MediaTek Inc.
 * Authors: Frank Wunderlich <frank-w@public-files.de>
 *          Eric Woudstra <ericwouds@gmail.com>
 *          Tianling Shen <cnsztl@immortalwrt.org>
 */

/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/pinctrl/mt65xx.h>

#include "mt7986a.dtsi"

/ {
	model = "Bananapi BPI-R3 Mini";
	chassis-type = "embedded";
	compatible = "bananapi,bpi-r3mini", "mediatek,mt7986a";

	aliases {
		serial0 = &uart0;
		ethernet0 = &gmac0;
		ethernet1 = &gmac1;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	dcin: regulator-12v {
		compatible = "regulator-fixed";
		regulator-name = "12vd";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		regulator-boot-on;
		regulator-always-on;
	};

	fan: pwm-fan {
		compatible = "pwm-fan";
		#cooling-cells = <2>;
		/*
		 * The signal is inverted on this board and the PWM driver
		 * does not support polarity inversion.
		 */
		/* cooling level (0, 1, 2) */
		cooling-levels = <255 96 0>;
		pwms = <&pwm 0 10000>;
	};

	reg_1p8v: regulator-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "1.8vd";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
		vin-supply = <&dcin>;
	};

	reg_3p3v: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "3.3vd";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;

Annotation

Implementation Notes