49fa3c0869
Big endian RMs uses a different mc146818_decode_year than little endian RMs Correct mc146818_decode_year for years before 2000 Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
37 lines
882 B
C
37 lines
882 B
C
/*
|
|
* 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 1
|
|
|
|
#ifndef mc146818_decode_year
|
|
#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
|
|
#endif
|
|
|
|
#endif /* __ASM_MACH_GENERIC_MC146818RTC_H */
|