diff options
Diffstat (limited to 'include/asm-mips/mach-jazz/mc146818rtc.h')
| -rw-r--r-- | include/asm-mips/mach-jazz/mc146818rtc.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-mips/mach-jazz/mc146818rtc.h b/include/asm-mips/mach-jazz/mc146818rtc.h new file mode 100644 index 00000000000..f44fdba1998 --- /dev/null +++ b/include/asm-mips/mach-jazz/mc146818rtc.h @@ -0,0 +1,34 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1998, 2001, 03 by Ralf Baechle + * + * RTC routines for Jazz style attached Dallas chip. + */ +#ifndef __ASM_MACH_JAZZ_MC146818RTC_H +#define __ASM_MACH_JAZZ_MC146818RTC_H + +#include <asm/io.h> +#include <asm/jazz.h> + +#define RTC_PORT(x) (0x70 + (x)) +#define RTC_IRQ 8 + +static inline unsigned char CMOS_READ(unsigned long addr) +{ + outb_p(addr, RTC_PORT(0)); + + return *(char *)JAZZ_RTC_BASE; +} + +static inline void CMOS_WRITE(unsigned char data, unsigned long addr) +{ + outb_p(addr, RTC_PORT(0)); + *(char *)JAZZ_RTC_BASE = data; +} + +#define RTC_ALWAYS_BCD 0 + +#endif /* __ASM_MACH_JAZZ_MC146818RTC_H */ |