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Undo revision 9674 by Pau pajuelo (Talk)
IGEP Boards have two RTC clocks, each one located at MPU and PMIC:
* '''RTC System clock''': system clock is controlled by MPU using its internal RTC peripheral. Every boot-up, the default firmware (/etc/init.d/hwclock.sh) copies the hardware clock data from /dev/rtc to system clock data to keeps clock up to date.
* '''RTC Hardware clock''': hardware clock is controlled by PMIC using its internal RTC peripheral. RTC PMIC affords two behaviours:
