52 lines
1.2 KiB
Groff
52 lines
1.2 KiB
Groff
.\" $NetBSD: gcscpcib.4,v 1.3 2008/03/05 13:28:15 xtraeme Exp $
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.\" $OpenBSD: glxpcib.4,v 1.7 2007/11/17 11:38:50 mbalmer Exp $
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.\"
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.\" Michael Shalayeff, 2007. Public Domain.
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.\"
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.Dd March 5, 2008
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.Dt GCSCPCIB 4
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.Os
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.Sh NAME
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.Nm gcscpcib
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.Nd "AMD CS553[56] PCI-ISA bridge with timecounter, watchdog timer, and GPIO"
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.Sh SYNOPSIS
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.Cd "gcscpcib* at pci? dev ? function ?"
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.Cd "gpio* at gcscpcib?"
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.Cd "isa* at gcscpcib?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the AMD Geode CS5535 and CS5536 Companion chip.
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This device contains a number of components, including a PCI-ISA bridge.
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Besides the core functionality, the
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.Nm
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driver implements a 32-bit 3.5 MHz timecounter, a watchdog timer device,
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and a GPIO device. The watchdog timer may be configured via the
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.Xr wdogctl 8
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utility and the GPIO pins can be manipulated via the
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.Xr gpioctl 8
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utility.
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.Sh SEE ALSO
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.Xr gpio 4 ,
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.Xr intro 4 ,
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.Xr isa 4 ,
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.Xr pci 4 ,
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.Xr pcib 4 ,
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.Xr gpioctl 8 ,
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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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driver first appeared in
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.Nx 5.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Michael Shalayeff
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and
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.An Yojiro UO .
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The GPIO parts were added by
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.An Marc Balmer Aq mbalmer@openbsd.org .
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