Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 |