From owner-freebsd-hackers Fri Feb 6 12:19:24 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA18138 for hackers-outgoing; Fri, 6 Feb 1998 12:19:24 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from plunger.gdeb.com (plunger.gdeb.com [153.11.11.3]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA17922 for ; Fri, 6 Feb 1998 12:18:56 -0800 (PST) (envelope-from deischen@iworks.InterWorks.org) Received: from clcrtr.clc.gdeb.com ([153.11.109.11]) by plunger.gdeb.com with ESMTP (1.37.109.16/CSC-E_1.8) id AA238165664; Fri, 6 Feb 1998 15:07:44 -0500 Received: from clcrtr.clc.gdeb.com (clcrtr [153.11.109.129]) by clcrtr.clc.gdeb.com (8.7.5/8.7.3) with SMTP id PAA12139; Fri, 6 Feb 1998 15:14:36 -0500 (EST) Message-Id: <34DB6F2C.41C67EA6@iworks.InterWorks.org> Date: Fri, 06 Feb 1998 15:14:36 -0500 From: "Daniel M. Eischen" X-Mailer: Mozilla 3.0Gold (X11; I; FreeBSD 2.1.5-RELEASE i386) Mime-Version: 1.0 To: bannai@best.com Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: VME support!! Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG X-To-Unsubscribe: mail to majordomo@FreeBSD.org "unsubscribe hackers" > I have a 486 board with a VME port. I intend to run FreeBSD on it and > interface to the VME boards that attach to it. As far as I can tell, there > is no support for a VME bus in FreeBSD. No, but this is something I really want also. We've got a similar Pentium-based board with a PCI<->VME bridge chip (Tundra) here at work. I'm busy on another project, and haven't had the chance to add support for this chip to FreeBSD. If all you want to do is be able to map VME addresses to the PCI bus, it isn't really that hard (given that you know how to program the bridge chip). You could write a simple driver to do this and make the VME addresse space available to a userland program. Adding support for multiple VME devices generating interrupts is more complicated though. > Can someone point me to any work which has been done in this area? I will > be getting the details and data sheet of the VME controller chip. The > board is sold by a company called Cyclone based out of Connecticut. I'm in CT also, but haven't heard of them. I just checked out their web site, and saw mostly i960 boards but no Pentiums. Dan Eischen deischen@gdeb.com