1 * sun4i/sun7i Real Time Clock
3 RTC controller for the Allwinner A10/A20
6 - compatible : Should be "allwinner,sun4i-a10-rtc" or "allwinner,sun7i-a20-rtc"
7 - reg: physical base address of the controller and length of memory mapped
9 - interrupts: IRQ line for the RTC.
14 compatible = "allwinner,sun4i-a10-rtc";
15 reg = <0x01c20d00 0x20>;