1 MOXA ART real-time clock
5 - compatible : Should be "moxa,moxart-rtc"
6 - rtc-sclk-gpios : RTC sclk gpio, with zero flags
7 - rtc-data-gpios : RTC data gpio, with zero flags
8 - rtc-reset-gpios : RTC reset gpio, with zero flags
13 compatible = "moxa,moxart-rtc";
14 rtc-sclk-gpios = <&gpio 5 0>;
15 rtc-data-gpios = <&gpio 6 0>;
16 rtc-reset-gpios = <&gpio 7 0>;