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/*
* 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 PC style attached Dallas chip.
*/
#ifndef __ASM_MACH_GENERIC_MC146818RTC_H
#define __ASM_MACH_GENERIC_MC146818RTC_H
#include <asm/io.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 inb_p(RTC_PORT(1));
}
static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
{
outb_p(addr, RTC_PORT(0));
outb_p(data, RTC_PORT(1));
}
#define RTC_ALWAYS_BCD 0
#ifndef mc146818_decode_year
#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
#endif
#endif /* __ASM_MACH_GENERIC_MC146818RTC_H */