1.\" $OpenBSD: tsc.4,v 1.7 2009/10/02 18:01:47 miod Exp $ 2.\" 3.\" Copyright (c) 2001 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Gregory McGarry. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd $Mdocdate: October 2 2009 $ 31.Dt TSC 4 alpha 32.Os 33.Sh NAME 34.Nm tsc 35.Nd 36DECchip 21272 and 21274 Core Logic chipset 37.Sh SYNOPSIS 38.Cd "tsc* at mainbus?" 39.Cd "tsp* at tsc?" 40.Cd "pci* at tsp?" 41.Sh DESCRIPTION 42The 43.Nm 44driver provides support for the DECchip 21272 (Tsunami) and 4521274 (Titan) Core Logic chipset found on most 21264-based 46systems. 47.Pp 48The 49.Nm tsp 50driver attaches to it and provides support for the DECchip 21272 and 21274 51built-in PCI controller. 52.Pp 53DECchip 21272 provides one PCI bus, while DECchip 21274 provides two distinct 54PCI buses, the second one with AGP capabilities. 55.Sh SEE ALSO 56.Xr intro 4 , 57.\".Xr mainbus 4 , 58.Xr pci 4 59.Sh BUGS 60The AGP capabilities of the second PCI bus of DECchip 21274 are not currently 61supported. 62