arch/arm/boot/dts/arm/versatile-ab-ib2.dts

File Facts

System

Linux kernel

Corpus path

arch/arm/boot/dts/arm/versatile-ab-ib2.dts

Extension

.dts

Size

668 bytes

Lines

31

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

• versatile-ab.dts

Detected Declarations

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

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * The Versatile AB with the IB2 expansion board mounted.
 * This works as a superset of the Versatile AB.
 */

#include "versatile-ab.dts"

/ {
	model = "ARM Versatile AB + IB2 board";

	/* Special IB2 control register */
	syscon@27000000 {
		compatible = "arm,versatile-ib2-syscon", "syscon", "simple-mfd";
		reg = <0x27000000 0x4>;
		ranges = <0x0 0x27000000 0x4>;
		#address-cells = <1>;
		#size-cells = <1>;

		led@0,4 {
			compatible = "register-bit-led";
			reg = <0x00 0x04>;
			offset = <0x00>;
			mask = <0x10>;
			label = "versatile-ib2:0";
			linux,default-trigger = "heartbeat";
			default-state = "on";
		};
	};
};

Annotation

• Immediate include surface: `versatile-ab.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.