From owner-freebsd-hackers Wed Aug 26 17:05:00 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA21795 for freebsd-hackers-outgoing; Wed, 26 Aug 1998 17:05:00 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from zippy.dyn.ml.org (sf3-21.ppp.wenet.net [206.15.84.21]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA21778 for ; Wed, 26 Aug 1998 17:04:52 -0700 (PDT) (envelope-from garbanzo@hooked.net) Received: from localhost (garbanzo@localhost) by zippy.dyn.ml.org (8.9.1/8.8.8) with SMTP id RAA01215; Wed, 26 Aug 1998 17:00:31 -0700 (PDT) (envelope-from garbanzo@hooked.net) X-Authentication-Warning: zippy.dyn.ml.org: garbanzo owned process doing -bs Date: Wed, 26 Aug 1998 17:00:31 -0700 (PDT) From: Alex X-Sender: garbanzo@zippy.dyn.ml.org To: "Robert D. Keys" cc: Terry Lambert , freebsd-hackers@FreeBSD.ORG Subject: Re: PS/2 MCA Model 80 port --- (don't laugh too hard) In-Reply-To: <199808261329.JAA23923@seedlab1.cropsci.ncsu.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 26 Aug 1998, Robert D. Keys wrote: [...] > As a general premise.... maybe the port should use the standard IBM > scsi-1 controller, the 3c523 card, and scsi tape (I don't have any > info on the IBM 6157 (Cypher) tape drives or adapters. I do have a > Future Domain mca scsi controller, though, that I could use. Well, what about the old Adaptec SCSI adapter? I'm thinking that might be easier, because IIRC it's just a 1542 (whatever chip that uses) with MCA stuff around it. > OK, any info is appreciated. All I have are the minix and linux sources > and patches to work with, and some snippets of boot code from an old > dead 4.3BSD port to a hybrid RT-PS/2 that never made it in the real world. > I am expecting that between all of those bits and pieces, it should be > possible to get something to come up. The interrupt handling seems > to be the main thing, the A20 line handling, and some wierd adapter > probing. There was some NetBSD work at getting MCA support, the URL I have is: http://www.epcc.ed.ac.uk/~st/netbsd-mca.html dunno if it's still alive. - alex | "Contrary to popular belief, penguins are not the salvation of modern | | technology. Neither do they throw parties for the urban proletariat." | | Powered by FreeBSD http://www.freebsd.org/ | To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message