Messages in this thread | | | Date | Mon, 13 Aug 2007 14:30:32 +0100 | From | Alan Cox <> | Subject | Re: [PATCH] pata_artop: fix UDMA5 for AEC6280[R] and UDMA6 for AEC6880[R] |
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> > It would be nice to know why - is the cable detet coming out right on > > this ? > > The box has a short 40-wire cable, so pata_artop drops to udma/33 > while aec62xx does udma/100 without intervention. I added an override
Curious as both use the same cable detect logic.
> to artop6260_cable_detect() to make it return PATA40_SHORT on this > platform, and with that it does udma/100 as expected.
Patch would be good. Looks like there are a couple of cases anyway where artop needs platform specific uglies
> > Read performance fluctuates quite a bit, but seems to be 1-3 MB/s > slower than aec62xx on average. I compared lspci -vvxxx and the > only differences are a latency setting and some ROM thingy:
Latency shouldn't matter but you can tweak the driver to verify easily enough - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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