Messages in this thread | | | Date | Thu, 26 Nov 2009 19:17:00 +0300 | From | Sergei Shtylyov <> | Subject | Re: [PATCH 16/86] pata_efar: MWDMA0 is unsupported |
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Hello.
Bartlomiej Zolnierkiewicz wrote:
>>>>>>MWDMA0 timings cannot be met with the PIIX based controller >>>>>>programming interface.
>>>>>The efar documentation makes no reference to not being capable of MWDMA0, >>>>>so where does this come from ? No MWDMA0 is an Intel erratum it appears.
>>>>No MWDMA0 support is a common issue on all 'PIIX-like' controllers.
>>>>In case of this chipset while the (preliminary) documentation claims MWDMA0 >>>>support on the 'FEATURES' page the later 'programming guide' part describes >>>>only PIO0-4, SWDMA2, MWDMA1-2 and UDMA0-4 transfer modes as supported.
>>>Cool - I only have the original docs.
>> Hm, me too... perhaps worth putting in Jeff's documentation archive?
> Me too? I just have what 'The Good Uncle Google' has..
Well, I've googled for it and was unable to find any valid links even to my preliminary version anymore. Perhaps I haven't looked hard enough...
> -- > Bartlomiej Zolnierkiewicz
MBR, Sergei
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