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cd017fbd RB |
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 */ |