arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro-emmc.dts

File Facts

System

Linux kernel

Corpus path

arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro-emmc.dts

Extension

.dts

Size

2479 bytes

Lines

69

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

• sun7i-a20-olinuxino-micro.dts

Detected Declarations

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

Annotated Snippet

#include "sun7i-a20-olinuxino-micro.dts"

/ {
	model = "Olimex A20-OLinuXino-MICRO-eMMC";
	compatible = "olimex,a20-olinuxino-micro-emmc", "allwinner,sun7i-a20";

	mmc2_pwrseq: pwrseq {
		compatible = "mmc-pwrseq-emmc";
		reset-gpios = <&pio 2 16 GPIO_ACTIVE_LOW>;
	};
};

&mmc2 {
	vmmc-supply = <&reg_vcc3v3>;
	bus-width = <4>;
	non-removable;
	mmc-pwrseq = <&mmc2_pwrseq>;
	status = "okay";

	emmc: emmc@0 {
		reg = <0>;
		compatible = "mmc-card";
		broken-hpi;
	};
};

Annotation

• Immediate include surface: `sun7i-a20-olinuxino-micro.dts`.
• 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.