.\"     $OpenBSD: tsc.4,v 1.10 2015/11/21 08:04:20 jmc Exp $
.\"
.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Gregory McGarry.
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.\" modification, are permitted provided that the following conditions
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.Dd $Mdocdate: November 21 2015 $
.Dt TSC 4 alpha
.Os
.Sh NAME
.Nm tsc ,
.Nm tsp
.Nd DECchip 21272 and 21274 Core Logic chipset
.Sh SYNOPSIS
.Cd "tsc* at mainbus?"
.Cd "tsciic* at tsc?"
.Cd "tsp* at tsc?"
.Cd "pci* at tsp?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the DECchip 21272 (Tsunami) and
21274 (Titan) Core Logic chipsets found on most 21264-based
systems.
.Pp
The
.Nm tsp
driver attaches to it and provides support for the DECchip 21272 and 21274
built-in PCI controller.
.Pp
DECchip 21272 provides one PCI bus, while DECchip 21274 provides two distinct
PCI buses, the second one with AGP capabilities.
.Sh SEE ALSO
.Xr intro 4 ,
.\".Xr mainbus 4 ,
.Xr pci 4 ,
.Xr tsciic 4
.Sh BUGS
The AGP capabilities of the second PCI bus of DECchip 21274 are not currently
supported.