39 lines
925 B
C
39 lines
925 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
|
|
* Copyright (C) 2007 Thomas Bogendoerfer
|
|
*
|
|
* RTC routines for Jazz style attached Dallas chip.
|
|
*/
|
|
#ifndef __ASM_MACH_JAZZ_MC146818RTC_H
|
|
#define __ASM_MACH_JAZZ_MC146818RTC_H
|
|
|
|
#include <linux/delay.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 *(volatile char *)JAZZ_RTC_BASE;
|
|
}
|
|
|
|
static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
|
|
{
|
|
outb_p(addr, RTC_PORT(0));
|
|
*(volatile char *)JAZZ_RTC_BASE = data;
|
|
}
|
|
|
|
#define RTC_ALWAYS_BCD 0
|
|
|
|
#define mc146818_decode_year(year) ((year) + 1980)
|
|
|
|
#endif /* __ASM_MACH_JAZZ_MC146818RTC_H */
|