LXR linux-old/include/asm-mips64/m48t35.h

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