arch/arm/boot/dts/allwinner/sun7i-a20-bananapi-m1-plus.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun7i-a20-bananapi-m1-plus.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun7i-a20-bananapi-m1-plus.dts
Extension
.dts
Size
5578 bytes
Lines
265
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

/dts-v1/;
#include "sun7i-a20.dtsi"
#include "sunxi-common-regulators.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

/ {
	model = "Banana Pi BPI-M1-Plus";
	compatible = "sinovoip,bpi-m1-plus", "allwinner,sun7i-a20";

	aliases {
		serial0 = &uart0;
	};

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

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

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

	leds {
		compatible = "gpio-leds";

		led-0 {
			label = "bananapi-m1-plus:green:usr";
			gpios = <&pio 7 24 GPIO_ACTIVE_HIGH>;
		};

		led-1 {
			label = "bananapi-m1-plus:pwr:usr";
			gpios = <&pio 7 25 GPIO_ACTIVE_HIGH>;
			default-state = "on";
		};
	};

	mmc3_pwrseq: pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&pio 7 22 GPIO_ACTIVE_LOW>; /* PH22 WL-PMU-EN */
	};

	reg_gmac_3v3: gmac-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "gmac-3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		startup-delay-us = <100000>;
		enable-active-high;
		gpio = <&pio 7 23 GPIO_ACTIVE_HIGH>;
	};
};

&ahci {
	status = "okay";
};

&codec {
	status = "okay";
};

&cpu0 {
	cpu-supply = <&reg_dcdc2>;

Annotation

Implementation Notes