From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: EISA 53c825 - where to start? Date: 16 Nov 2004 09:22:27 -0600 Message-ID: <1100618553.2770.16.camel@mulgrave> References: Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from stat16.steeleye.com ([209.192.50.48]:42170 "EHLO hancock.sc.steeleye.com") by vger.kernel.org with ESMTP id S262017AbUKPPWl (ORCPT ); Tue, 16 Nov 2004 10:22:41 -0500 In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Meelis Roos Cc: Linux SCSI list On Tue, 2004-11-16 at 03:12, Meelis Roos wrote: > I have a Compaq Proliant 4500 with onboard EISA-connected NCR 53c825 > SCSI adapter. There is no EISA-aware version for this chip in Linux > AFAIK so I want to make one. EISA API is there, also several NCR/Sym/LSI > SCSI drivers. Which driver is the best to base the eisa work on? And > where should I start? :) Are you sure it's an 825? The reason I ask is because the 825 chip is both a SCSI chip and a PCI chip with on-board BIOS. The only real way I could see it working as EISA is if it were glued to a EISA<->PCI converter, which I didn't think existed. Also, the only way to get this to work will be to find out what the magic glue registers are and how they're mapped ... unless you have access to the HW specs for the box, this is going to be tricky to reverse engineer. James