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Xref: sserve comp.os.linux.misc:15723 comp.os.linux.development:9598 comp.os.386bsd.development:2195 comp.os.386bsd.questions:10487 comp.sys.ibm.pc.hardware.systems:3232 comp.sys.ibm.pc.hardware.storage:5905 comp.sys.ibm.pc.hardware.misc:5721 comp.periphs.scsi:20810 Newsgroups: comp.os.linux.misc,comp.os.linux.development,comp.os.386bsd.development,comp.os.386bsd.questions,comp.sys.ibm.pc.hardware.systems,comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc,comp.periphs.scsi Path: sserve!newshost.anu.edu.au!munnari.oz.au!bunyip.cc.uq.oz.au!harbinger.cc.monash.edu.au!msuinfo!agate!ihnp4.ucsd.edu!swrinde!pipex!sunic!ugle.unit.no!news.uit.no!terjem From: terjem@stud.cs.uit.no (Terje Normann Marthinussen) Subject: Re: BusLogi 445S and DMA Channel (NEW ANSWER) Sender: news@news.uit.no (News admin.) Message-ID: <1994May27.160149.6187@news.uit.no> Date: Fri, 27 May 1994 16:01:49 GMT References: <JKH.94May27001218@nx.ilo.dec.com> Organization: University of Tromsoe X-Newsreader: TIN [version 1.1 PL9] Followup-To: comp.os.linux.misc,comp.os.linux.development,comp.os.386bsd.development,comp.os.386bsd.questions,comp.sys.ibm.pc.hardware.systems,comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc,comp.periphs.scsi Lines: 43 Jordan Hubbard (jkh@nx.ilo.dec.com) wrote: : In article <2s2j80$1go@ebh.eb.ele.tue.nl> wjw@ebh.eb.ele.tue.nl (Willem Jan Withagen) writes: : Because this starts me wonder which kernel I should use with my 445S REV D : board under FreeBSD. I'm using the AHA kernel which works great for 16Mb : But I'm waiting for the 3.37 Eprom to go to 32MB. Should I use the BT : kernels for FreeBSD : You can use the Bt driver *now* for your Rev D board with 16MB - I do : this now. If we can get the bounce-buffering working for 1.1.5, : you'll also be able to go to 32MB with it. Whether or not the 3.37 : eprom fixes the >16MB DMA problem is, however, still an open question : for ANY of the operating systems. Buslogic claims success with 3.37, : yet I've now seen more than a few reports that tend to indicate that : they did NOT fix the problem. If this is the case, then the worst : that will happen with your FreeBSD 1.1.5 system is that it'll simply : "bounce" DMA >16MB and be a very small degree slower, but it'll work. : You'll know whether or not we got the bounce-buffer stuff working : properly in 1.1.5 when you see the release notes! I don't know if firmware 3.37 is the only thing needed. I got an entirely new board instead of the one I got originally. I think the Norwegian distributor said that you needed a Rev. E card to get this fixed (I got a Rev. E replacement). Originally I had a Rev. A card and it is more than the firmware that is different I think. The revision number etched into the backside of the circuit board istelf has gone from Rev. A to B. I couldn't see any difference on the board itself, but there is sveral chips of a different brand, and some others that I think have higher revision number (including the controller chip itself). Well, what I can say, is that the Rev. E card definately did fix my problem with more than 16MB of memory with OS/2 at least. So I believe that Rev. E cards should fix this under other OSs as well. Terje Marthinussen terjem@stud.cs.uit.no