include/asm-ppc/m48t35.h

   1 /*
   2  *  Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
   3  *  and
   4  *  Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
   5  *  The 37 is the 35 plus alarm and century thus the offsets
   6  *  are shifted by the extra registers.
   7  */
   8
   9 #ifndef __PPC_M48T35_H
  10 #define __PPC_M48T35_H
  11
  12 /* RTC offsets */
  13 #define M48T35_RTC_FLAGS        (-8)    /* the negative regs are really T37 only */
  14 #define M48T35_RTC_CENTURY      (-7)
  15 #define M48T35_RTC_AL_SEC       (-6)
  16 #define M48T35_RTC_AL_MIN       (-5)
  17 #define M48T35_RTC_AL_HRS       (-4)
  18 #define M48T35_RTC_AL_DOM       (-3)
  19 #define M48T35_RTC_INTERRUPT    (-2)
  20 #define M48T35_RTC_WATCHDOG     (-1)
  21 #define M48T35_RTC_CONTROL      0       /* T35 starts here */
  22 #define M48T35_RTC_SECONDS      1
  23 #define M48T35_RTC_MINUTES      2
  24 #define M48T35_RTC_HOURS        3
  25 #define M48T35_RTC_DAY          4
  26 #define M48T35_RTC_DOM          5
  27 #define M48T35_RTC_MONTH        6
  28 #define M48T35_RTC_YEAR         7
  29
  30 /* this way help us know which bits go with which regs */
  31 #define M48T35_RTC_FLAGS_BL           0x10
  32 #define M48T35_RTC_FLAGS_AF           0x40
  33 #define M48T35_RTC_FLAGS_WDF          0x80
  34
  35 #define M48T35_RTC_INTERRUPT_AFE       0x80
  36 #define M48T35_RTC_INTERRUPT_ABE       0x20
  37 #define M48T35_RTC_INTERRUPT_ALL       (M48T35_RTC_INTERRUPT_AFE|M48T35_RTC_INTERRUPT_ABE)
  38
  39 #define M48T35_RTC_WATCHDOG_RB         0x03
  40 #define M48T35_RTC_WATCHDOG_BMB        0x7c
  41 #define M48T35_RTC_WATCHDOG_WDS        0x80
  42 #define M48T35_RTC_WATCHDOG_ALL        (M48T35_RTC_WATCHDOG_RB|M48T35_RTC_WATCHDOG_BMB|M48T35_RTC_W
  43
  44 #define M48T35_RTC_CONTROL_WRITE       0x80
  45 #define M48T35_RTC_CONTROL_READ        0x40
  46 #define M48T35_RTC_CONTROL_CAL_SIGN    0x20
  47 #define M48T35_RTC_CONTROL_CAL_VALUE   0x1f
  48 #define M48T35_RTC_CONTROL_LOCKED      (M48T35_RTC_WRITE|M48T35_RTC_READ)
  49 #define M48T35_RTC_CONTROL_CALIBRATION (M48T35_RTC_CONTROL_CAL_SIGN|M48T35_RTC_CONTROL_CAL_VALUE)
  50
  51 #define M48T35_RTC_SECONDS_SEC_1       0x0f
  52 #define M48T35_RTC_SECONDS_SEC_10      0x70
  53 #define M48T35_RTC_SECONDS_ST          0x80
  54 #define M48T35_RTC_SECONDS_SEC_ALL     (M48T35_RTC_SECONDS_SEC_1|M48T35_RTC_SECONDS_SEC_10)
  55
  56 #define M48T35_RTC_MINUTES_MIN_1       0x0f
  57 #define M48T35_RTC_MINUTES_MIN_10      0x70
  58 #define M48T35_RTC_MINUTES_MIN_ALL     (M48T35_RTC_MINUTES_MIN_1|M48T35_RTC_MINUTES_MIN_10)
  59
  60 #define M48T35_RTC_HOURS_HRS_1         0x0f
  61 #define M48T35_RTC_HOURS_HRS_10        0x30
  62 #define M48T35_RTC_HOURS_HRS_ALL       (M48T35_RTC_HOURS_HRS_1|M48T35_RTC_HOURS_HRS_10)
  63
  64 #define M48T35_RTC_DAY_DAY_1           0x03
  65 #define M48T35_RTC_DAY_FT              0x40
  66
  67 #define M48T35_RTC_ALARM_OFF           0x00
  68 #define M48T35_RTC_WATCHDOG_OFF        0x00
  69
  70
  71 /* legacy */
  72 #define M48T35_RTC_SET      0x80
  73 #define M48T35_RTC_STOPPED  0x80
  74 #define M48T35_RTC_READ     0x40
  75
  76
  77 #endif