1/*
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
6 * Copyright (C) 2002, 2005  Maciej W. Rozycki
7 *
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>
17#include <asm/addrspace.h>
18#include <asm/dec/system.h>
19
20extern volatile u8 *dec_rtc_base;
21
22#define ARCH_RTC_LOCATION
23
24#define RTC_PORT(x)	CPHYSADDR((long)dec_rtc_base)
25#define RTC_IO_EXTENT	dec_kn_slot_size
26#define RTC_IOMAPPED	0
27#undef RTC_IRQ
28
29#define RTC_DEC_YEAR	0x3f	/* Where we store the real year on DECs.  */
30
31static inline unsigned char CMOS_READ(unsigned long addr)
32{
33	return dec_rtc_base[addr * 4];
34}
35
36static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
37{
38	dec_rtc_base[addr * 4] = data;
39}
40
41#define RTC_ALWAYS_BCD	0
42
43#endif /* __ASM_MIPS_DEC_RTC_DEC_H */
44