1* NXP PCF85063 Real Time Clock 2 3Required properties: 4- compatible: Should one of contain: 5 "nxp,pca85073a", 6 "nxp,pcf85063", 7 "nxp,pcf85063a", 8 "nxp,pcf85063tp", 9 "microcrystal,rv8263" 10- reg: I2C address for chip. 11 12Optional property: 13- quartz-load-femtofarads: The capacitive load of the quartz(x-tal), 14 expressed in femto Farad (fF). Valid values are 7000 and 12500. 15 Default value (if no value is specified) is 7000fF. 16 17Optional child node: 18- clock: Provide this if the square wave pin is used as boot-enabled fixed clock. 19 20Example: 21 22pcf85063: rtc@51 { 23 compatible = "nxp,pcf85063"; 24 reg = <0x51>; 25 quartz-load-femtofarads = <12500>; 26 27 clock { 28 compatible = "fixed-clock"; 29 #clock-cells = <0>; 30 clock-frequency = <32768>; 31 }; 32}; 33