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| author | Yuri Tikhonov <yur@emcraft.com> | 2008-03-20 17:56:04 +0300 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-03-20 21:48:46 +0100 |
| commit | b73a19e1609d0f705cbab8014ca17aefe89e4c76 (patch) | |
| tree | 4f6752b24fe118da445233479396497d516a1e50 /drivers/rtc/ds1306.c | |
| parent | 23e20aa6488e6c0622496549861bfdc74108debe (diff) | |
| download | u-boot-imx-b73a19e1609d0f705cbab8014ca17aefe89e4c76.zip u-boot-imx-b73a19e1609d0f705cbab8014ca17aefe89e4c76.tar.gz u-boot-imx-b73a19e1609d0f705cbab8014ca17aefe89e4c76.tar.bz2 | |
LWMON5: POST RTC fix
Modify the RTC API to provide one a status for the time reported by
the rtc_get() function:
0 - a reliable time is guaranteed,
< 0 - a reliable time isn't guaranteed (power fault, clock issues,
and so on).
The RTC chip drivers are responsible for providing this info if the
corresponding chip supports such functionality. If not - always
report that the time is reliable.
The POST RTC test was modified to detect the RTC faults utilizing
this new rtc_get() feature.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Diffstat (limited to 'drivers/rtc/ds1306.c')
| -rw-r--r-- | drivers/rtc/ds1306.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/rtc/ds1306.c b/drivers/rtc/ds1306.c index 89e433d..1c8ac7f 100644 --- a/drivers/rtc/ds1306.c +++ b/drivers/rtc/ds1306.c @@ -91,7 +91,7 @@ static void init_spi (void); /* ------------------------------------------------------------------------- */ /* read clock time from DS1306 and return it in *tmp */ -void rtc_get (struct rtc_time *tmp) +int rtc_get (struct rtc_time *tmp) { volatile immap_t *immap = (immap_t *) CFG_IMMR; unsigned char spi_byte; /* Data Byte */ @@ -141,6 +141,8 @@ void rtc_get (struct rtc_time *tmp) debug ("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, tmp->tm_hour, tmp->tm_min, tmp->tm_sec); + + return 0; } /* ------------------------------------------------------------------------- */ @@ -304,7 +306,7 @@ static unsigned char rtc_read (unsigned char reg); static void rtc_write (unsigned char reg, unsigned char val); /* read clock time from DS1306 and return it in *tmp */ -void rtc_get (struct rtc_time *tmp) +int rtc_get (struct rtc_time *tmp) { unsigned char sec, min, hour, mday, wday, mon, year; @@ -349,6 +351,8 @@ void rtc_get (struct rtc_time *tmp) debug ("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, tmp->tm_hour, tmp->tm_min, tmp->tm_sec); + + return 0; } /* ------------------------------------------------------------------------- */ |