diff options
| author | imp <imp@FreeBSD.org> | 2012-10-07 01:58:32 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2012-10-07 01:58:32 +0000 |
| commit | 1a947de79c3c25fc6fa4c7c03377661e6481e1bd (patch) | |
| tree | a13afb6824f3bfa3c346e416cd9f6a458e9a61f0 /sys/arm/at91/at91_rtcreg.h | |
| parent | 562e7d7aa0e0f73154a53f5d449bdfa0d3b83416 (diff) | |
| download | FreeBSD-src-1a947de79c3c25fc6fa4c7c03377661e6481e1bd.zip FreeBSD-src-1a947de79c3c25fc6fa4c7c03377661e6481e1bd.tar.gz | |
Use the RTC unit to get the time. This works on all known AT91SAM9*
processors, either on reboot or after power down with battery backup.
However, the AT91RM9200 RTC always resets on reboot making it just
about useless at the moment (if we support a low-power mode or an
extended sleep mode, it might become useful).
Submitted by: Ian Lepore
Diffstat (limited to 'sys/arm/at91/at91_rtcreg.h')
| -rw-r--r-- | sys/arm/at91/at91_rtcreg.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/sys/arm/at91/at91_rtcreg.h b/sys/arm/at91/at91_rtcreg.h index 1a02a64..923db0a 100644 --- a/sys/arm/at91/at91_rtcreg.h +++ b/sys/arm/at91/at91_rtcreg.h @@ -42,6 +42,10 @@ #define RTC_IMR 0x28 /* RTC Interrupt Mask Register */ #define RTC_VER 0x2c /* RTC Valid Entry Register */ +/* CR */ +#define RTC_CR_UPDTIM (0x1u << 0) /* Request update of time register */ +#define RTC_CR_UPDCAL (0x1u << 1) /* Request update of calendar reg. */ + /* TIMR */ #define RTC_TIMR_SEC_M 0x7fUL #define RTC_TIMR_SEC_S 0 @@ -71,14 +75,29 @@ #define RTC_CALR_DOW_M 0x00d0000UL #define RTC_CALR_DOW_S 21 #define RTC_CALR_DOW(x) FROMBCD(((x) & RTC_CALR_DOW_M) >> RTC_CALR_DOW_S) -#define RTC_CALR_DAY_M 0x3f00000UL +#define RTC_CALR_DAY_M 0x3f000000UL #define RTC_CALR_DAY_S 24 #define RTC_CALR_DAY(x) FROMBCD(((x) & RTC_CALR_DAY_M) >> RTC_CALR_DAY_S) #define RTC_CALR_MK(yr, mon, day, dow) \ - ((TOBCD((yr) / 100 + 19) << RTC_CALR_CEN_S) | \ + ((TOBCD((yr) / 100) << RTC_CALR_CEN_S) | \ (TOBCD((yr) % 100) << RTC_CALR_YEAR_S) | \ (TOBCD(mon) << RTC_CALR_MON_S) | \ (TOBCD(dow) << RTC_CALR_DOW_S) | \ (TOBCD(day) << RTC_CALR_DAY_S)) +/* SR */ + +#define RTC_SR_ACKUPD (0x1u << 0) /* Acknowledge for Update */ +#define RTC_SR_ALARM (0x1u << 1) /* Alarm Flag */ +#define RTC_SR_SECEV (0x1u << 2) /* Second Event */ +#define RTC_SR_TIMEV (0x1u << 3) /* Time Event */ +#define RTC_SR_CALEV (0x1u << 4) /* Calendar event */ + +/* VER */ + +#define RTC_VER_NVTIM (0x1 << 0) /* Non-valid time */ +#define RTC_VER_NVCAL (0x1 << 1) /* Non-valid calendar */ +#define RTC_VER_NVTIMALR (0x1 << 2) /* Non-valid time alarm */ +#define RTC_VER_NVCALALR (0x1 << 3) /* Non-valid calendar alarm */ + #endif /* ARM_AT91_AT91_RTCREG_H */ |
