54 строки
1.2 KiB
C
54 строки
1.2 KiB
C
|
/*
|
||
|
|
* ds1742rtc.h - register definitions for the Real-Time-Clock / CMOS RAM
|
||
|
|
*
|
||
|
|
* Copyright (C) 1999-2001 Toshiba Corporation
|
||
|
|
* Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org)
|
||
|
|
*
|
||
|
|
* Permission is hereby granted to copy, modify and redistribute this code
|
||
|
|
* in terms of the GNU Library General Public License, Version 2 or later,
|
||
|
|
* at your option.
|
||
|
|
*/
|
||
|
|
#ifndef __LINUX_DS1742RTC_H
|
||
|
|
#define __LINUX_DS1742RTC_H
|
||
|
|
|
||
|
|
#include <asm/ds1742.h>
|
||
|
|
|
||
|
|
#define RTC_BRAM_SIZE 0x800
|
||
|
|
#define RTC_OFFSET 0x7f8
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Register summary
|
||
|
|
*/
|
||
|
|
#define RTC_CONTROL (RTC_OFFSET + 0)
|
||
|
|
#define RTC_CENTURY (RTC_OFFSET + 0)
|
||
|
|
#define RTC_SECONDS (RTC_OFFSET + 1)
|
||
|
|
#define RTC_MINUTES (RTC_OFFSET + 2)
|
||
|
|
#define RTC_HOURS (RTC_OFFSET + 3)
|
||
|
|
#define RTC_DAY (RTC_OFFSET + 4)
|
||
|
|
#define RTC_DATE (RTC_OFFSET + 5)
|
||
|
|
#define RTC_MONTH (RTC_OFFSET + 6)
|
||
|
|
#define RTC_YEAR (RTC_OFFSET + 7)
|
||
|
|
|
||
|
|
#define RTC_CENTURY_MASK 0x3f
|
||
|
|
#define RTC_SECONDS_MASK 0x7f
|
||
|
|
#define RTC_DAY_MASK 0x07
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bits in the Control/Century register
|
||
|
|
*/
|
||
|
|
#define RTC_WRITE 0x80
|
||
|
|
#define RTC_READ 0x40
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bits in the Seconds register
|
||
|
|
*/
|
||
|
|
#define RTC_STOP 0x80
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bits in the Day register
|
||
|
|
*/
|
||
|
|
#define RTC_BATT_FLAG 0x80
|
||
|
|
#define RTC_FREQ_TEST 0x40
|
||
|
|
|
||
|
|
#endif /* __LINUX_DS1742RTC_H */
|