I found a problem with keeping RTC time on reboot or power off even if battery is connected. The soc_get_rtc_failed routine in pmutil.c of apollolake SOC does not read and reset after read the General PM Configuration 1 register. As a result RTC always failed. Is there any Konfig what I overlooked or have soc_get_rtc_failed to be expanded?
Kind regards, Wolfgang Kamp