2 * RTC definitions for DECstation style attached Dallas DS1287 chip.
4 * Copyright (C) 1998, 2001 by Ralf Baechle
5 * Copyright (C) 1998 by Harald Koerfgen
6 * Copyright (C) 2002, 2005 Maciej W. Rozycki
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.
13 #ifndef __ASM_MIPS_DEC_RTC_DEC_H
14 #define __ASM_MIPS_DEC_RTC_DEC_H
16 #include <linux/types.h>
17 #include <asm/addrspace.h>
18 #include <asm/dec/system.h>
20 extern volatile u8 *dec_rtc_base;
22 #define ARCH_RTC_LOCATION
24 #define RTC_PORT(x) CPHYSADDR((long)dec_rtc_base)
25 #define RTC_IO_EXTENT dec_kn_slot_size
26 #define RTC_IOMAPPED 0
29 #define RTC_DEC_YEAR 0x3f /* Where we store the real year on DECs. */
31 static inline unsigned char CMOS_READ(unsigned long addr)
33 return dec_rtc_base[addr * 4];
36 static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
38 dec_rtc_base[addr * 4] = data;
41 #define RTC_ALWAYS_BCD 0
43 #endif /* __ASM_MIPS_DEC_RTC_DEC_H */