include/asm-mips64/m48t35.h

   1 /*
   2  *  Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
   3  */
   4
   5 #ifndef _ASM_M48T35_H
   6 #define _ASM_M48T35_H
   7
   8 struct m48t35_rtc {
   9         volatile u8         pad[0x7ff8];    /* starts at 0x7ff8 */
  10         volatile u8         control;
  11         volatile u8         sec;
  12         volatile u8         min;
  13         volatile u8         hour;
  14         volatile u8         day;
  15         volatile u8         date;
  16         volatile u8         month;
  17         volatile u8         year;
  18 };
  19
  20 #define M48T35_RTC_SET      0x80
  21 #define M48T35_RTC_STOPPED  0x80
  22 #define M48T35_RTC_READ     0x40
  23
  24 #ifndef BCD_TO_BIN
  25 #define BCD_TO_BIN(x)   ((x)=((x)&15) + ((x)>>4)*10)
  26 #endif
  27
  28 #ifndef BIN_TO_BCD
  29 #define BIN_TO_BCD(x)   ((x)=(((x)/10)<<4) + (x)%10)
  30 #endif
  31
  32 #endif