xref: /freebsd/sys/contrib/device-tree/Bindings/watchdog/mpc8xxx-wdt.txt (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1* Freescale mpc8xxx watchdog driver (For 83xx, 86xx and 8xx)
2
3Required properties:
4- compatible: Shall contain one of the following:
5	"mpc83xx_wdt" for an mpc83xx
6	"fsl,mpc8610-wdt" for an mpc86xx
7	"fsl,mpc823-wdt" for an mpc8xx
8- reg: base physical address and length of the area hosting the
9       watchdog registers.
10		On the 83xx, "Watchdog Timer Registers" area:	<0x200 0x100>
11		On the 86xx, "Watchdog Timer Registers" area:	<0xe4000 0x100>
12		On the 8xx, "General System Interface Unit" area: <0x0 0x10>
13
14Optional properties:
15- reg: additional physical address and length (4) of location of the
16       Reset Status Register (called RSTRSCR on the mpc86xx)
17		On the 83xx, it is located at offset 0x910
18		On the 86xx, it is located at offset 0xe0094
19		On the 8xx, it is located at offset 0x288
20
21Example:
22		WDT: watchdog@0 {
23		    compatible = "fsl,mpc823-wdt";
24		    reg = <0x0 0x10 0x288 0x4>;
25		};
26