Messages in this thread | | | Date | Thu, 03 Dec 2009 15:50:14 -0500 | From | Jeff Garzik <> | Subject | Re: [PATCH 16/86] pata_efar: MWDMA0 is unsupported |
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On 11/26/2009 10:15 AM, Alan Cox wrote: > On Thu, 26 Nov 2009 15:53:58 +0100 > Bartlomiej Zolnierkiewicz<bzolnier@gmail.com> wrote: > >> On Wednesday 25 November 2009 06:25:52 pm Alan Cox wrote: >>> On Wed, 25 Nov 2009 18:04:15 +0100 >>> Bartlomiej Zolnierkiewicz<bzolnier@gmail.com> wrote: >>> >>>> From: Bartlomiej Zolnierkiewicz<bzolnier@gmail.com> >>>> Subject: [PATCH] pata_efar: MWDMA0 is unsupported >>>> >>>> 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.
ACK Bart's patch, then?
This thread was a bit unclear, and I want to be certain (well, as certain as we can be :))
Jeff
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