arch/arm/boot/dts/allwinner/sun8i-h2-plus-bananapi-m2-zero.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun8i-h2-plus-bananapi-m2-zero.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun8i-h2-plus-bananapi-m2-zero.dts
Extension
.dts
Size
6204 bytes
Lines
274
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+ OR MIT)
/*
 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
 *
 * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
 *   Copyright (C) 2016 Chen-Yu Tsai <wens@csie.org>
 */

/dts-v1/;
#include "sun8i-h3.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "Banana Pi BPI-M2-Zero";
	compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus";

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
	};

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

	connector {
		compatible = "hdmi-connector";
		type = "c";

		port {
			hdmi_con_in: endpoint {
				remote-endpoint = <&hdmi_out_con>;
			};
		};
	};

	leds {
		compatible = "gpio-leds";

		pwr_led {
			label = "bananapi-m2-zero:red:pwr";
			gpios = <&r_pio 0 10 GPIO_ACTIVE_LOW>; /* PL10 */
			default-state = "on";
		};
	};

	gpio-keys {
		compatible = "gpio-keys";

		switch-4 {
			label = "power";
			linux,code = <KEY_POWER>;
			gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};
	};

	reg_vdd_cpux: vdd-cpux-regulator {
		compatible = "regulator-gpio";
		regulator-name = "vdd-cpux";
		regulator-type = "voltage";
		regulator-boot-on;
		regulator-always-on;
		regulator-min-microvolt = <1100000>;
		regulator-max-microvolt = <1300000>;
		regulator-ramp-delay = <50>; /* 4ms */

Annotation

Implementation Notes