Messages in this thread | | | Date | Tue, 12 Mar 2002 17:58:09 +0100 | From | Martin Dalecki <> | Subject | Re: [patch] My AMD IDE driver, v2.7 |
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Vojtech Pavlik wrote: > On Tue, Mar 12, 2002 at 05:43:17PM +0100, Martin Dalecki wrote: > >>Vojtech Pavlik wrote: >> >>>On Tue, Mar 12, 2002 at 05:26:20PM +0100, Martin Dalecki wrote: >>> >>> >>>>Vojtech Pavlik wrote: >>>> >>>> >>>> >>>> >>>>>Well, as much as I'd like to use safe pre-computed register values for >>>>>the chips, that ain't possible - even when we assumed the system bus >>>>>(PCI, VLB, whatever) was always 33 MHz, still the drives have various >>>>>ideas about what DMA and PIO modes should look like, see the tDMA and >>>>>tPIO entries in hdparm -t. >>>>> >>>>> >>>>Yes yes yes of course some of the drivers are confused. And I don't >>>>argue that precomputation is adequate right now. It just wasn't for >>>>the CMD640 those times... I only wanted to reffer to history and >>>>why my timings where different then the computed. >>>> >>>> >>>We may want to compare your original timings to what ide-timing.[ch] >>>will compute ... >>> >>Unfortunately there is no chance. I have abondony this board quite >>happy a long time ago... It was an 486 and I don't keep old >>shread around. Sorry I just don't have it at hand anylonger. >> > > You may happen to have the numbers, though - that should be enough. > > Btw, I have a CMD640B based PCI card lying around here, but never > managed to get it generate any interrupts, though the rest seems to be > working.
I remember that I have found them in some readme attached to the original dos drivers from CMD. Maybe it's still availabe on the net but really I don't have it anylongeranywhere archieved. And BTW.> The CMD640B was the variant which wasn't physically broken, as the CMD640 which had improper bus termination of the secondary channel.
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