Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt

   1 Xilinx AXI/PLB soft-core watchdog Device Tree Bindings
   2 ---------------------------------------------------------
   3
   4 Required properties:
   5 - compatible            : Should be "xlnx,xps-timebase-wdt-1.00.a" or
   6                           "xlnx,xps-timebase-wdt-1.01.a".
   7 - reg                   : Physical base address and size
   8
   9 Optional properties:
  10 - clocks                : Input clock specifier. Refer to common clock
  11                           bindings.
  12 - clock-frequency       : Frequency of clock in Hz
  13 - xlnx,wdt-enable-once  : 0 - Watchdog can be restarted
  14                           1 - Watchdog can be enabled just once
  15 - xlnx,wdt-interval     : Watchdog timeout interval in 2^<val> clock cycles,
  16                           <val> is integer from 8 to 31.
  17
  18 Example:
  19 axi-timebase-wdt@40100000 {
  20         clock-frequency = <50000000>;
  21         compatible = "xlnx,xps-timebase-wdt-1.00.a";
  22         clocks = <&clkc 15>;
  23         reg = <0x40100000 0x10000>;
  24         xlnx,wdt-enable-once = <0x0>;
  25         xlnx,wdt-interval = <0x1b>;
  26 } ;