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1/*
2 * ds1742rtc.h - register definitions for the Real-Time-Clock / CMOS RAM
3 *
4 * Copyright (C) 1999-2001 Toshiba Corporation
5 * Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org)
6 *
7 * Permission is hereby granted to copy, modify and redistribute this code
8 * in terms of the GNU Library General Public License, Version 2 or later,
9 * at your option.
10 */
11#ifndef __LINUX_DS1742RTC_H
12#define __LINUX_DS1742RTC_H
13
14#include <asm/ds1742.h>
15
16#define RTC_BRAM_SIZE 0x800
17#define RTC_OFFSET 0x7f8
18
19/*
20 * Register summary
21 */
22#define RTC_CONTROL (RTC_OFFSET + 0)
23#define RTC_CENTURY (RTC_OFFSET + 0)
24#define RTC_SECONDS (RTC_OFFSET + 1)
25#define RTC_MINUTES (RTC_OFFSET + 2)
26#define RTC_HOURS (RTC_OFFSET + 3)
27#define RTC_DAY (RTC_OFFSET + 4)
28#define RTC_DATE (RTC_OFFSET + 5)
29#define RTC_MONTH (RTC_OFFSET + 6)
30#define RTC_YEAR (RTC_OFFSET + 7)
31
32#define RTC_CENTURY_MASK 0x3f
33#define RTC_SECONDS_MASK 0x7f
34#define RTC_DAY_MASK 0x07
35
36/*
37 * Bits in the Control/Century register
38 */
39#define RTC_WRITE 0x80
40#define RTC_READ 0x40
41
42/*
43 * Bits in the Seconds register
44 */
45#define RTC_STOP 0x80
46
47/*
48 * Bits in the Day register
49 */
50#define RTC_BATT_FLAG 0x80
51#define RTC_FREQ_TEST 0x40
52
53#endif /* __LINUX_DS1742RTC_H */