/*
   * Machine dependent access functions for RTC registers.
   */
  #ifndef _ASM_MC146818RTC_H
  #define _ASM_MC146818RTC_H
  
  #include <asm/arch/irqs.h>
  #include <asm/io.h>
  
  #ifndef RTC_PORT
  #define RTC_PORT(x)	(0x70 + (x))
  #define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
  #endif
  
  /*
   * The yet supported machines all access the RTC index register via
   * an ISA port access but the way to access the date register differs ...
   */
  #define CMOS_READ(addr) ({ \
  outb_p((addr),RTC_PORT(0)); \
  inb_p(RTC_PORT(1)); \
  })
  #define CMOS_WRITE(val, addr) ({ \
  outb_p((addr),RTC_PORT(0)); \
  outb_p((val),RTC_PORT(1)); \
  })
  
  #endif /* _ASM_MC146818RTC_H */