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kernel/linux-rt-4.4.41/arch/mips/include/asm/mach-dec/mc146818rtc.h 1.12 KB
5113f6f70   김현기   kernel add
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  /*
   * RTC definitions for DECstation style attached Dallas DS1287 chip.
   *
   * Copyright (C) 1998, 2001 by Ralf Baechle
   * Copyright (C) 1998 by Harald Koerfgen
   * Copyright (C) 2002, 2005  Maciej W. Rozycki
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version
   * 2 of the License, or (at your option) any later version.
   */
  #ifndef __ASM_MIPS_DEC_RTC_DEC_H
  #define __ASM_MIPS_DEC_RTC_DEC_H
  
  #include <linux/types.h>
  #include <asm/addrspace.h>
  #include <asm/dec/system.h>
  
  extern volatile u8 *dec_rtc_base;
  
  #define ARCH_RTC_LOCATION
  
  #define RTC_PORT(x)	CPHYSADDR((long)dec_rtc_base)
  #define RTC_IO_EXTENT	dec_kn_slot_size
  #define RTC_IOMAPPED	0
  #undef RTC_IRQ
  
  #define RTC_DEC_YEAR	0x3f	/* Where we store the real year on DECs.  */
  
  static inline unsigned char CMOS_READ(unsigned long addr)
  {
  	return dec_rtc_base[addr * 4];
  }
  
  static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
  {
  	dec_rtc_base[addr * 4] = data;
  }
  
  #define RTC_ALWAYS_BCD	0
  
  #endif /* __ASM_MIPS_DEC_RTC_DEC_H */