| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 |