arch/sh/include/cpu-sh4/cpu/freq.h

Source file repositories/reference/linux-study-clean/arch/sh/include/cpu-sh4/cpu/freq.h

File Facts

System: Linux kernel
Corpus path: arch/sh/include/cpu-sh4/cpu/freq.h
Extension: .h
Size: 1995 bytes
Lines: 75
Domain: Architecture Layer
Bucket: arch/sh
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 __ASM_CPU_SH4_FREQ_H
#define __ASM_CPU_SH4_FREQ_H

#if defined(CONFIG_CPU_SUBTYPE_SH7722) || \
    defined(CONFIG_CPU_SUBTYPE_SH7723) || \
    defined(CONFIG_CPU_SUBTYPE_SH7343) || \
    defined(CONFIG_CPU_SUBTYPE_SH7366)
#define FRQCR		        0xa4150000
#define VCLKCR			0xa4150004
#define SCLKACR			0xa4150008
#define SCLKBCR			0xa415000c
#define IrDACLKCR		0xa4150010
#define MSTPCR0			0xa4150030
#define MSTPCR1			0xa4150034
#define MSTPCR2			0xa4150038
#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
#define	FRQCR			0xffc80000
#define	OSCCR			0xffc80018
#define	PLLCR			0xffc80024
#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
      defined(CONFIG_CPU_SUBTYPE_SH7780)
#define	FRQCR			0xffc80000
#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
#define FRQCRA			0xa4150000
#define FRQCRB			0xa4150004
#define VCLKCR			0xa4150048

#define FCLKACR			0xa4150008
#define FCLKBCR			0xa415000c
#define FRQCR			FRQCRA
#define SCLKACR			FCLKACR
#define SCLKBCR			FCLKBCR
#define FCLKACR			0xa4150008
#define FCLKBCR			0xa415000c
#define IrDACLKCR		0xa4150018

#define MSTPCR0			0xa4150030
#define MSTPCR1			0xa4150034
#define MSTPCR2			0xa4150038

#elif defined(CONFIG_CPU_SUBTYPE_SH7734)
#define FRQCR0			0xffc80000
#define FRQCR2			0xffc80008
#define FRQMR1			0xffc80014
#define FRQMR2			0xffc80018
#elif defined(CONFIG_CPU_SUBTYPE_SH7785)
#define FRQCR0			0xffc80000
#define FRQCR1			0xffc80004
#define FRQMR1			0xffc80014
#elif defined(CONFIG_CPU_SUBTYPE_SH7786)
#define FRQCR0			0xffc40000
#define FRQCR1			0xffc40004
#define FRQMR1			0xffc40014
#elif defined(CONFIG_CPU_SUBTYPE_SHX3)
#define FRQCR0			0xffc00000
#define FRQCR1			0xffc00004
#define FRQMR1			0xffc00014
#else
#define FRQCR			0xffc00000
#define FRQCR_PSTBY		0x0200
#define FRQCR_PLLEN		0x0400
#define FRQCR_CKOEN		0x0800
#endif
#define MIN_DIVISOR_NR		0
#define MAX_DIVISOR_NR		3

#endif /* __ASM_CPU_SH4_FREQ_H */

Annotation

Atlas domain: Architecture Layer / arch/sh.
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.