arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h

Extension

.h

Size

962 bytes

Lines

41

Domain

Architecture Layer

Bucket

arch/arm64

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

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

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

#ifndef __RZG3S_SMARC_SWITCHES_H__
#define __RZG3S_SMARC_SWITCHES_H__

/*
 * On-board switches' states:
 * @SW_OFF: switch's state is OFF
 * @SW_ON:  switch's state is ON
 */
#define SW_OFF		0
#define SW_ON		1

/*
 * SW_CONFIG[x] switches' states:
 * @SW_CONFIG2:
 *	SW_OFF - SD0 is connected to eMMC
 *	SW_ON  - SD0 is connected to uSD0 card
 * @SW_CONFIG3:
 *	SW_OFF - SD2 is connected to SoC
 *	SW_ON  - SCIF1, SSI0, IRQ0, IRQ1 connected to SoC
 */
#define SW_CONFIG2	SW_OFF
#define SW_CONFIG3	SW_ON

/*
 * SW_OPT_MUX[x] switches' states:
 * @SW_OPT_MUX4:
 *	SW_OFF - The SMARC SER0 signals are routed to M.2 Key E UART
 *	SW_ON  - The SMARC SER0 signals are routed to PMOD1
 */
#define SW_OPT_MUX4	SW_ON

#endif /* __RZG3S_SMARC_SWITCHES_H__ */

Annotation

• Atlas domain: Architecture Layer / arch/arm64.
• Implementation status: source implementation candidate.

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.