The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/watchdog/microchip,pic32-dmt.txt

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    1 * Microchip PIC32 Deadman Timer
    2 
    3 The deadman timer is used to reset the processor in the event of a software
    4 malfunction. It is a free-running instruction fetch timer, which is clocked
    5 whenever an instruction fetch occurs until a count match occurs.
    6 
    7 Required properties:
    8 - compatible: must be "microchip,pic32mzda-dmt".
    9 - reg: physical base address of the controller and length of memory mapped
   10   region.
   11 - clocks: phandle of source clk. Should be <&rootclk PB7CLK>.
   12 
   13 Example:
   14 
   15         watchdog@1f800a00 {
   16                 compatible = "microchip,pic32mzda-dmt";
   17                 reg = <0x1f800a00 0x80>;
   18                 clocks = <&rootclk PB7CLK>;
   19         };

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