From b73a19e1609d0f705cbab8014ca17aefe89e4c76 Mon Sep 17 00:00:00 2001 From: Yuri Tikhonov Date: Thu, 20 Mar 2008 17:56:04 +0300 Subject: 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 --- drivers/rtc/ds1374.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers/rtc/ds1374.c') diff --git a/drivers/rtc/ds1374.c b/drivers/rtc/ds1374.c index e773dd9261..f6bb2965a4 100644 --- a/drivers/rtc/ds1374.c +++ b/drivers/rtc/ds1374.c @@ -107,8 +107,8 @@ static void rtc_write_raw (uchar reg, uchar val); /* * Get the current time from the RTC */ -void rtc_get (struct rtc_time *tm){ - +int rtc_get (struct rtc_time *tm){ + int rel = 0; unsigned long time1, time2; unsigned int limit; unsigned char tmp; @@ -138,18 +138,23 @@ void rtc_get (struct rtc_time *tm){ if (time1 != time2) { printf("can't get consistent time from rtc chip\n"); + rel = -1; } DEBUGR ("Get RTC s since 1.1.1970: %d\n", time1); to_tm(time1, tm); /* To Gregorian Date */ - if (rtc_read(RTC_SR_ADDR) & RTC_SR_BIT_OSF) + if (rtc_read(RTC_SR_ADDR) & RTC_SR_BIT_OSF) { printf ("### Warning: RTC oscillator has stopped\n"); + rel = -1; + } DEBUGR ("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday, tm->tm_hour, tm->tm_min, tm->tm_sec); + + return rel; } /* -- cgit v1.2.3