Hello. Alan Cox 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@xxxxxxxxx> wrote:
From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> 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.
Hm, me too... perhaps worth putting in Jeff's documentation archive? MBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
