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Diffstat (limited to 'include/asm-sh/watchdog.h')
| -rw-r--r-- | include/asm-sh/watchdog.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/include/asm-sh/watchdog.h b/include/asm-sh/watchdog.h deleted file mode 100644 index d19ea62ef8c6..000000000000 --- a/include/asm-sh/watchdog.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * include/asm-sh/watchdog.h - * - * Copyright (C) 2002, 2003 Paul Mundt - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#ifndef __ASM_SH_WATCHDOG_H -#define __ASM_SH_WATCHDOG_H -#ifdef __KERNEL__ - -#include <linux/types.h> -#include <asm/cpu/watchdog.h> -#include <asm/io.h> - -/* - * See asm/cpu-sh2/watchdog.h for explanation of this stupidity.. - */ -#ifndef WTCNT_R -# define WTCNT_R WTCNT -#endif - -#ifndef WTCSR_R -# define WTCSR_R WTCSR -#endif - -#define WTCNT_HIGH 0x5a -#define WTCSR_HIGH 0xa5 - -#define WTCSR_CKS2 0x04 -#define WTCSR_CKS1 0x02 -#define WTCSR_CKS0 0x01 - -/* - * CKS0-2 supports a number of clock division ratios. At the time the watchdog - * is enabled, it defaults to a 41 usec overflow period .. we overload this to - * something a little more reasonable, and really can't deal with anything - * lower than WTCSR_CKS_1024, else we drop back into the usec range. - * - * Clock Division Ratio Overflow Period - * -------------------------------------------- - * 1/32 (initial value) 41 usecs - * 1/64 82 usecs - * 1/128 164 usecs - * 1/256 328 usecs - * 1/512 656 usecs - * 1/1024 1.31 msecs - * 1/2048 2.62 msecs - * 1/4096 5.25 msecs - */ -#define WTCSR_CKS_32 0x00 -#define WTCSR_CKS_64 0x01 -#define WTCSR_CKS_128 0x02 -#define WTCSR_CKS_256 0x03 -#define WTCSR_CKS_512 0x04 -#define WTCSR_CKS_1024 0x05 -#define WTCSR_CKS_2048 0x06 -#define WTCSR_CKS_4096 0x07 - -/** - * sh_wdt_read_cnt - Read from Counter - * Reads back the WTCNT value. - */ -static inline __u8 sh_wdt_read_cnt(void) -{ - return ctrl_inb(WTCNT_R); -} - -/** - * sh_wdt_write_cnt - Write to Counter - * @val: Value to write - * - * Writes the given value @val to the lower byte of the timer counter. - * The upper byte is set manually on each write. - */ -static inline void sh_wdt_write_cnt(__u8 val) -{ - ctrl_outw((WTCNT_HIGH << 8) | (__u16)val, WTCNT); -} - -/** - * sh_wdt_read_csr - Read from Control/Status Register - * - * Reads back the WTCSR value. - */ -static inline __u8 sh_wdt_read_csr(void) -{ - return ctrl_inb(WTCSR_R); -} - -/** - * sh_wdt_write_csr - Write to Control/Status Register - * @val: Value to write - * - * Writes the given value @val to the lower byte of the control/status - * register. The upper byte is set manually on each write. - */ -static inline void sh_wdt_write_csr(__u8 val) -{ - ctrl_outw((WTCSR_HIGH << 8) | (__u16)val, WTCSR); -} - -#endif /* __KERNEL__ */ -#endif /* __ASM_SH_WATCHDOG_H */ |