Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt

   1 * NXP PCF85063 Real Time Clock
   2
   3 Required 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
  12 Optional 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
  17 Optional child node:
  18 - clock: Provide this if the square wave pin is used as boot-enabled fixed clock.
  19
  20 Example:
  21
  22 pcf85063: 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 };