IOPWDOG(4) Device Drivers Manual (evbarm) IOPWDOG(4)

iopwdog
Intel I/O Processor Watchdog Timer

iopxs* at mainbus?
iopwdog* at iopxs?

The iopwdog driver supports the watchdog timer built-in to the following Intel I/O Processors:

The watchdog timer counts down at a fixed rate based on the clock speed of the XScale CPU core. The period of the watchdog timer cannot be changed, nor can the watchdog time be disabled once is has been enabled.

wdogctl(8)

The iopwdog device first appeared in NetBSD 2.0.

The iopwdog driver was written by Jason R. Thorpe <thorpej@wasabisystems.com> and contributed by Wasabi Systems, Inc.
August 2, 2002 NetBSD 9.4