arch/arm64/boot/dts/ti/k3-j721s2-evm-usb0-type-a.dtso

File Facts

System

Linux kernel

Corpus path

arch/arm64/boot/dts/ti/k3-j721s2-evm-usb0-type-a.dtso

Extension

.dtso

Size

594 bytes

Lines

29

Domain

Architecture Layer

Bucket

arch/arm64

Inferred role

Architecture Layer: arch/arm64

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

• dt-bindings/gpio/gpio.h

Detected Declarations

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

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only OR MIT
/**
 * DT Overlay for enabling USB0 instance of USB in the Host Mode of operation
 * with the Type-A Connector on the J7 common processor board.
 *
 * J7 Common Processor Board Product Link: https://www.ti.com/tool/J721EXCPXEVM
 *
 * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
 */

/dts-v1/;
/plugin/;

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

&exp_som {
	p0-hog {
		/* P0 - USB2.0_MUX_SEL */
		gpio-hog;
		gpios = <0 GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "USB2.0_MUX_SEL";
	};
};

&usb0 {
	dr_mode = "host";
};

Annotation

• Immediate include surface: `dt-bindings/gpio/gpio.h`.
• Atlas domain: Architecture Layer / arch/arm64.
• 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.