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,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};