Kernel-3.10.0-957.el7_reboot

Reboot property to control system reboot on PPC4xx systems:

By setting “reset_type” to one of the following values, the default
software reset mechanism may be overidden. Here the possible values of
“reset_type”:

  1 - PPC4xx core reset
  2 - PPC4xx chip reset
  3 - PPC4xx system reset (default)

Example:

    cpu@0 {
        device_type = "cpu";
        model = "PowerPC,440SPe";
        ...
        reset-type = <2>;    /* Use chip-reset */
    };