The driver sets the weekday incorrectly when called by the 'date set' command.
Sunday is 1, Saturday is 7 unlike in U-Boot (see data sheet https://www.nxp.com/docs/en/data-sheet/MC146818.pdf, table 3).
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- drivers/rtc/mc146818.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/rtc/mc146818.c b/drivers/rtc/mc146818.c index 744c0f4d75..b98c39d821 100644 --- a/drivers/rtc/mc146818.c +++ b/drivers/rtc/mc146818.c @@ -143,7 +143,8 @@ static int mc146818_set(struct rtc_time *tmp)
mc146818_write8(RTC_YEAR, bin2bcd(tmp->tm_year % 100)); mc146818_write8(RTC_MONTH, bin2bcd(tmp->tm_mon)); - mc146818_write8(RTC_DAY_OF_WEEK, bin2bcd(tmp->tm_wday)); + /* Sunday = 1, Saturday = 7 */ + mc146818_write8(RTC_DAY_OF_WEEK, bin2bcd(tmp->tm_wday + 1)); mc146818_write8(RTC_DATE_OF_MONTH, bin2bcd(tmp->tm_mday)); mc146818_write8(RTC_HOURS, bin2bcd(tmp->tm_hour)); mc146818_write8(RTC_MINUTES, bin2bcd(tmp->tm_min));