arch/riscv/boot/dts/allwinner/sun20i-d1s-mangopi-mq.dts

Source file repositories/reference/linux-study-clean/arch/riscv/boot/dts/allwinner/sun20i-d1s-mangopi-mq.dts

File Facts

System
Linux kernel
Corpus path
arch/riscv/boot/dts/allwinner/sun20i-d1s-mangopi-mq.dts
Extension
.dts
Size
2356 bytes
Lines
129
Domain
Architecture Layer
Bucket
arch/riscv
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 Samuel Holland <samuel@sholland.org>

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

/dts-v1/;

#include "sun20i-d1s.dtsi"
#include "sun20i-common-regulators.dtsi"

/ {
	model = "MangoPi MQ";
	compatible = "widora,mangopi-mq", "allwinner,sun20i-d1s";

	aliases {
		ethernet0 = &rtl8189ftv;
		serial3 = &uart3;
	};

	chosen {
		stdout-path = "serial3:115200n8";
	};

	leds {
		compatible = "gpio-leds";

		led-0 {
			color = <LED_COLOR_ID_BLUE>;
			function = LED_FUNCTION_STATUS;
			gpios = <&pio 3 22 GPIO_ACTIVE_LOW>; /* PD22 */
		};
	};

	reg_avdd2v8: avdd2v8 {
		compatible = "regulator-fixed";
		regulator-name = "avdd2v8";
		regulator-min-microvolt = <2800000>;
		regulator-max-microvolt = <2800000>;
		vin-supply = <&reg_vcc_3v3>;
	};

	reg_dvdd: dvdd {
		compatible = "regulator-fixed";
		regulator-name = "dvdd";
		regulator-min-microvolt = <1200000>;
		regulator-max-microvolt = <1200000>;
		vin-supply = <&reg_vcc_3v3>;
	};

	reg_vcc_core: vcc-core {
		compatible = "regulator-fixed";
		regulator-name = "vcc-core";
		regulator-min-microvolt = <900000>;
		regulator-max-microvolt = <900000>;
		vin-supply = <&reg_vcc>;
	};

	wifi_pwrseq: wifi-pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&pio 6 12 GPIO_ACTIVE_LOW>; /* PG12 */
	};
};

&cpu0 {
	cpu-supply = <&reg_vcc_core>;
};

&dcxo {
	clock-frequency = <24000000>;

Annotation

Implementation Notes