Re: [patch] My AMD IDE driver, v2.7

Vojtech Pavlik
2002-03-12T16:51:08Z

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.

--
Vojtech Pavlik
SuSE Labs