arch/mips/include/asm/m48t37.h

   1 /*
   2  *  Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
   3  */
   4 #ifndef _ASM_M48T37_H
   5 #define _ASM_M48T37_H
   6
   7 #include <linux/spinlock.h>
   8
   9 extern spinlock_t rtc_lock;
  10
  11 struct m48t37_rtc {
  12         volatile u8     pad[0x7ff0];    /* NVRAM */
  13         volatile u8     flags;
  14         volatile u8     century;
  15         volatile u8     alarm_sec;
  16         volatile u8     alarm_min;
  17         volatile u8     alarm_hour;
  18         volatile u8     alarm_data;
  19         volatile u8     interrupts;
  20         volatile u8     watchdog;
  21         volatile u8     control;
  22         volatile u8     sec;
  23         volatile u8     min;
  24         volatile u8     hour;
  25         volatile u8     day;
  26         volatile u8     date;
  27         volatile u8     month;
  28         volatile u8     year;
  29 };
  30
  31 #define M48T37_RTC_SET          0x80
  32 #define M48T37_RTC_STOPPED      0x80
  33 #define M48T37_RTC_READ         0x40
  34
  35 #endif /* _ASM_M48T37_H */