arch/arm/boot/dts/allwinner/sun7i-a20-pcduino3.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun7i-a20-pcduino3.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun7i-a20-pcduino3.dts
Extension
.dts
Size
4799 bytes
Lines
228
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/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "LinkSprite pcDuino3";
	compatible = "linksprite,pcduino3", "allwinner,sun7i-a20";

	aliases {
		serial0 = &uart0;
	};

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

	leds {
		compatible = "gpio-leds";

		led-0 {
			label = "pcduino3:green:tx";
			gpios = <&pio 7 15 GPIO_ACTIVE_LOW>;
		};

		led-1 {
			label = "pcduino3:green:rx";
			gpios = <&pio 7 16 GPIO_ACTIVE_LOW>;
		};
	};

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

		key-back {
			label = "Key Back";
			linux,code = <KEY_BACK>;
			gpios = <&pio 7 17 GPIO_ACTIVE_LOW>;
		};

		key-home {
			label = "Key Home";
			linux,code = <KEY_HOME>;
			gpios = <&pio 7 18 GPIO_ACTIVE_LOW>;
		};

		key-menu {
			label = "Key Menu";
			linux,code = <KEY_MENU>;
			gpios = <&pio 7 19 GPIO_ACTIVE_LOW>;
		};
	};
};

&ahci {
	target-supply = <&reg_ahci_5v>;
	status = "okay";
};

&codec {
	status = "okay";
};

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

Annotation

Implementation Notes