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