arch/arm/boot/dts/allwinner/sun6i-a31-app4-evb1.dts

File Facts

System

Linux kernel

Corpus path

arch/arm/boot/dts/allwinner/sun6i-a31-app4-evb1.dts

Extension

.dts

Size

2618 bytes

Lines

83

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.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• sun6i-a31.dtsi
• sunxi-common-regulators.dtsi
• dt-bindings/gpio/gpio.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

/dts-v1/;
#include "sun6i-a31.dtsi"
#include "sunxi-common-regulators.dtsi"

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

/ {
	model = "Allwinner A31 APP4 EVB1 Evaluation Board";
	compatible = "allwinner,app4-evb1", "allwinner,sun6i-a31";

	aliases {
		serial0 = &uart0;
	};

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

&ehci0 {
	status = "okay";
};

&reg_usb1_vbus {
	gpio = <&pio 7 27 GPIO_ACTIVE_HIGH>;
	status = "okay";
};

&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_ph_pins>;
	status = "okay";
};

&usbphy {
	usb1_vbus-supply = <&reg_usb1_vbus>;
	status = "okay";
};

Annotation

• Immediate include surface: `sun6i-a31.dtsi`, `sunxi-common-regulators.dtsi`, `dt-bindings/gpio/gpio.h`.
• Atlas domain: Architecture Layer / arch/arm.
• Implementation status: atlas-only.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.