78 lines
3.0 KiB
Groff
78 lines
3.0 KiB
Groff
.\" $NetBSD: elansc.4,v 1.1 2002/08/12 03:45:25 thorpej Exp $
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.\"
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.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Jason R. Thorpe.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd August 11, 2002
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.Dt ELANSC 4
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.Os
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.Sh NAME
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.Nm elansc
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.Nd AMD Elan SC520 System Controller driver
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.Sh SYNOPSIS
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.Cd elansc* at pci? dev ? function ?
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.Sh DESCRIPTION
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The
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.Nm
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driver supports the system controller of the AMD Elan SC520 microcontroller.
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The SC520 consists of an AMD Am5x86 processor core, integrated PCI host
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controller, and several standard on-chip devices, such as NS16550-compatible
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UARTs, real-time clock, and timers.
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.Pp
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The Elan SC520 also provides several special on-chip devices. The following
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are supported by the
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.Nm
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driver:
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.Bl -bullet
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.It
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Watchdog timer. The watchdog timer may be configured for a 1
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second, 2 second, 4 second, 8 second, 16 second, or 32 second
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expiration period.
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.El
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.Sh SEE ALSO
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.Xr wdogctl 8
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.Sh HISTORY
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The
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.Nm
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device first appeared in
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.Nx 2.0 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by
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.An Jason R. Thorpe Aq thorpej@netbsd.org .
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.An Jasper Wallace
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provided the work-around for a hardware bug related to the watchdog timer
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in some steppings of the SC520 CPU.
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