tegrakernel/kernel/kernel-4.9/Documentation/devicetree/bindings/watchdog/ts4800-wdt.txt

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Technologic Systems Watchdog
Required properties:
- compatible: must be "technologic,ts4800-wdt"
- syscon: phandle / integer array that points to the syscon node which
describes the FPGA's syscon registers.
- phandle to FPGA's syscon
- offset to the watchdog register
Optional property:
- timeout-sec: contains the watchdog timeout in seconds.
Example:
syscon: syscon@b0010000 {
compatible = "syscon", "simple-mfd";
reg = <0xb0010000 0x3d>;
reg-io-width = <2>;
wdt@e {
compatible = "technologic,ts4800-wdt";
syscon = <&syscon 0xe>;
timeout-sec = <10>;
};
}