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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * RTC definitions for DECstation style attached Dallas DS1287 chip.
3 *
4 * Copyright (C) 1998, 2001 by Ralf Baechle
5 * Copyright (C) 1998 by Harald Koerfgen
Maciej W. Rozyckia5fc9c02005-07-01 16:10:40 +00006 * Copyright (C) 2002, 2005 Maciej W. Rozycki
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13#ifndef __ASM_MIPS_DEC_RTC_DEC_H
14#define __ASM_MIPS_DEC_RTC_DEC_H
15
16#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <asm/addrspace.h>
Maciej W. Rozyckia5fc9c02005-07-01 16:10:40 +000018#include <asm/dec/system.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019
20extern volatile u8 *dec_rtc_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
Maciej W. Rozyckia5fc9c02005-07-01 16:10:40 +000022#define RTC_PORT(x) CPHYSADDR((long)dec_rtc_base)
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#define RTC_IO_EXTENT dec_kn_slot_size
24#define RTC_IOMAPPED 0
25#undef RTC_IRQ
26
27#define RTC_DEC_YEAR 0x3f /* Where we store the real year on DECs. */
28
Linus Torvalds1da177e2005-04-16 15:20:36 -070029static inline unsigned char CMOS_READ(unsigned long addr)
30{
31 return dec_rtc_base[addr * 4];
32}
33
34static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
35{
36 dec_rtc_base[addr * 4] = data;
37}
38
39#define RTC_ALWAYS_BCD 0
40
41#endif /* __ASM_MIPS_DEC_RTC_DEC_H */