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LWMON5: POST RTC fix

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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>
This commit is contained in:
Yuri Tikhonov
2008-03-20 17:56:04 +03:00
committed by Wolfgang Denk
parent 23e20aa648
commit b73a19e160
34 changed files with 146 additions and 45 deletions
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4
cpu/s3c44b0/cpu.c
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@@ -155,7 +155,7 @@ int dcache_status (void)
#define HEX2BCD(x) ((((x) / 10) << 4) + (x) % 10)
#endif
void rtc_get (struct rtc_time* tm)
int rtc_get (struct rtc_time* tm)
{
RTCCON |= 1;
tm->tm_year = BCD2HEX(BCDYEAR);
@@ -184,6 +184,8 @@ void rtc_get (struct rtc_time* tm)
tm->tm_year += 1900;
else
tm->tm_year += 2000;
return 0;
}
void rtc_set (struct rtc_time* tm)