stephan@bananapipro:~$ dmesg | grep -i rtc
[ 3.939338] sunxi-rtc 1c20d00.rtc: rtc core: registered rtc-sunxi as rtc0
[ 3.939345] sunxi-rtc 1c20d00.rtc: RTC enabled
[ 3.962747] axp20x-i2c 0-0034: Backup (RTC) battery charging is disabled
Welcome to ARMBIAN 5.31 stable Debian GNU/Linux 8 (jessie) 4.11.6-sunxi