1.\" $NetBSD: iopwdog.4,v 1.5 2014/03/18 18:20:40 riastradh Exp $ 2.\" 3.\" Copyright (c) 2002 Wasabi Systems, Inc. 4.\" All rights reserved. 5.\" 6.\" Written by Jason R. Thorpe for Wasabi Systems, Inc. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. All advertising materials mentioning features or use of this software 17.\" must display the following acknowledgement: 18.\" This product includes software developed for the NetBSD Project by 19.\" Wasabi Systems, Inc. 20.\" 4. The name of Wasabi Systems, Inc. may not be used to endorse 21.\" or promote products derived from this software without specific prior 22.\" written permission. 23.\" 24.\" THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 25.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 28.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34.\" POSSIBILITY OF SUCH DAMAGE. 35.\" 36.Dd August 2, 2002 37.Dt IOPWDOG 4 evbarm 38.Os 39.Sh NAME 40.Nm iopwdog 41.Nd Intel I/O Processor Watchdog Timer 42.Sh SYNOPSIS 43.Cd iopxs* at mainbus? 44.Cd iopwdog* at iopxs? 45.Sh DESCRIPTION 46The 47.Nm 48driver supports the watchdog timer built-in to the following Intel 49I/O Processors: 50.Bl -bullet 51.It 52Intel i80321 I/O Processor 53.El 54.Pp 55The watchdog timer counts down at a fixed rate based on the clock 56speed of the XScale CPU core. The period of the watchdog timer 57cannot be changed, nor can the watchdog time be disabled once is 58has been enabled. 59.Sh SEE ALSO 60.Xr wdogctl 8 61.Sh HISTORY 62The 63.Nm 64device first appeared in 65.Nx 2.0 . 66.Sh AUTHORS 67The 68.Nm 69driver was written by 70.An Jason R. Thorpe Aq Mt thorpej@wasabisystems.com 71and contributed by Wasabi Systems, Inc. 72