Messages in this thread | | | Date | Tue, 18 Jul 2000 00:12:39 +0200 | From | Vojtech Pavlik <> | Subject | Re: VIA IDE driver, v1.5 (final) |
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On Mon, Jul 17, 2000 at 03:04:30PM -0700, David Ford wrote:
> Good to hear. I gather from Andre's postings that really a time constraint and > what needs to be mapped in pci config space. > > If I only had another dozen hours in a day..
I'll try to find the bit if it is there. I still don't have enough info (except for some T13 drafts) on how the 80-wire cable detection works in hardware. I don't like having to manually configure this either.
It could be the BIOSes just try UDMA66 and if they get CRC errors they fall back to a lower speed. It could be the BIOS can ask the drive if it sees an 80-wire cable.
Btw, UDMA mode 3 (44.4 MB/sec) works well even on 40-wire cables and has not much speed difference to udma66.
> Vojtech Pavlik wrote: > > > On Mon, Jul 17, 2000 at 05:41:59AM -0700, David Ford wrote: > > > Is this a permanent plan? More and more options are being hammered into the > > > append line and LILO has a limit as well as the limits of users understanding > > > that they need to put that there. > > > > Well, I removed the splitfifo= option too, so the number remains > > constant. Unfortunately there's no known way to find out whether the > > 80-wire cable is installed, so the ata66 option seems to be a reasonable > > solution. It's used for other IDE hardware (amd750) as well). > > -- > "The difference between 'involvement' and 'commitment' is like an > eggs-and-ham breakfast: the chicken was 'involved' - the pig was > 'committed'." > >
Content-Description: Card for David Ford
-- Vojtech Pavlik SuSE Labs
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