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

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

File Facts

System
Linux kernel
Corpus path
arch/sh/include/cpu-sh4/cpu/watchdog.h
Extension
.h
Size
1057 bytes
Lines
42
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __ASM_CPU_SH4_WATCHDOG_H
#define __ASM_CPU_SH4_WATCHDOG_H

#if defined(CONFIG_CPU_SUBTYPE_SH7785) || defined(CONFIG_CPU_SUBTYPE_SH7780)
/* Prefix definition */
#define WTBST_HIGH	0x55
/* Register definitions */
#define WTCNT_R		0xffcc0010 /*WDTCNT*/
#define WTCSR		0xffcc0004 /*WDTCSR*/
#define WTCNT		0xffcc0000 /*WDTST*/
#define WTST		WTCNT
#define WTBST		0xffcc0008 /*WDTBST*/
/* Register definitions */
#elif	defined(CONFIG_CPU_SUBTYPE_SH7722) || \
	defined(CONFIG_CPU_SUBTYPE_SH7723) || \
	defined(CONFIG_CPU_SUBTYPE_SH7724)
#define WTCNT		0xa4520000
#define WTCSR		0xa4520004
#else
/* Register definitions */
#define WTCNT		0xffc00008
#define WTCSR		0xffc0000c
#endif

/* Bit definitions */
#define WTCSR_TME	0x80
#define WTCSR_WT	0x40
#define WTCSR_RSTS	0x20
#define WTCSR_WOVF	0x10
#define WTCSR_IOVF	0x08

#endif /* __ASM_CPU_SH4_WATCHDOG_H */

Annotation

Implementation Notes