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