tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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};