xref: /freebsd-src/sys/contrib/device-tree/Bindings/rtc/rtc-opal.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotIBM OPAL real-time clock
2*c66ec88fSEmmanuel Vadot------------------------
3*c66ec88fSEmmanuel Vadot
4*c66ec88fSEmmanuel VadotRequired properties:
5*c66ec88fSEmmanuel Vadot- compatible: Should be "ibm,opal-rtc"
6*c66ec88fSEmmanuel Vadot
7*c66ec88fSEmmanuel VadotOptional properties:
8*c66ec88fSEmmanuel Vadot- wakeup-source: Decides if the wakeup is supported or not
9*c66ec88fSEmmanuel Vadot		 (Legacy property supported: "has-tpo")
10*c66ec88fSEmmanuel Vadot
11*c66ec88fSEmmanuel VadotExample:
12*c66ec88fSEmmanuel Vadot	rtc {
13*c66ec88fSEmmanuel Vadot		compatible = "ibm,opal-rtc";
14*c66ec88fSEmmanuel Vadot		wakeup-source;
15*c66ec88fSEmmanuel Vadot		phandle = <0x10000029>;
16*c66ec88fSEmmanuel Vadot		linux,phandle = <0x10000029>;
17*c66ec88fSEmmanuel Vadot	};
18