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Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!agate!ihnp4.ucsd.edu!swrinde!pipex!uknet!cf-cm!isl-gate.elsy.cf.ac.uk!paul From: paul@isl-gate.elsy.cf.ac.uk (Paul) Subject: Re: Help with Pentium 90, Bt946C, install .... Message-ID: <1994Jul20.101525.23945@cm.cf.ac.uk> Sender: paul@isl-gate.elsy.cf.ac.uk (Paul) Organization: ELSYM, University of Wales, College of Cardiff, UK. References: <jaganeCsyx62.4Fo@netcom.com> <1994Jul16.173919.10018@palantir.p.tvt.se> Date: Wed, 20 Jul 1994 10:15:23 +0000 Lines: 40 In article <1994Jul16.173919.10018@palantir.p.tvt.se>, Paul Pries <paul@pp2.smc.south.telia.se> wrote: >jagane@netcom.com (Jagane D Sundar) writes: >: Here's what happens, >: The boot floppy loads the kernel, and asks for the FS floppy. >: Once I have the FS floppy in, the kernel detects all the hardware then >: says its trying to change root device to fd0a. That is the last I hear >: from the kernel. The kernel is frozen. Arrrggghhh!!!!! >: >Exactly the same thing happend to me, when I was trying out a Bt946C. >I switched to a 747 (EISA) instead, and all was well. There has been some >rumors saying that people are actually using the Bt-946C, but I've never >seen one in action... ;-) > >If you get it to work, _please_ tell me the trick... :-) I definitiely have a 946C working and once I did get it working I've had no problems with it. I'm not exactly sure how I got it working though :-) These are the things I played around with in my attempt. The above hang is probably due to misconfigured interrupts. The 946C doesn't seem to get autoconfigured properly like it should so you have to go into the Buslogic BIOS and manually configure it. Make sure you set the int channel to the same as the kernel (generic kernels expect the card at 12 I think). Make sure the trigger type is correct for your motherboard. Make sure the host adapter interrupt pin is set right. I don't actually know how to do this but changing from A to B brought my card to life. Are the PCI interrupt pins dependent on slot position or anything like that, how does this interrupt mapping work. Any PCI gurus out there who can give a brief intro into how PCI configuration takes place? Where can I get hold of the PCI 2 spec? -- Paul Richards, FreeBSD core team member. Intelligent Systems Laboratory, ELSYM ,University of Wales, College Cardiff Internet: paul@isl.cf.ac.uk, JANET(UK): RICHARDSDP@CARDIFF.AC.UK