Re: IDE disk runs just in DMA/33 with 2.6.20.2 on nVidia CK804controller

From: Alan Cox
Date: Tue Mar 13 2007 - 08:37:42 EST


On Tue, 13 Mar 2007 13:13:12 +0100 (CET)
l.genoni@xxxxxxxxxxxxxx wrote:

> Hi,
> I reported this also for 2.6.20 kernel.
> new libata with controller nVidia CK804 initializes the disk in DMA/33,
> with with 2.6.19.5 and previous the disk is correctly inizialized in
> DMA/100.
> Tha cable is OK, and with older kernels the disks runs without troubles.

I have the pieces that fix all this, but not yet integrated into the main
tree. With 2.6.21rc3 you have 80 wire cables you may find that simply
hacking the driver to set ATA_CBL_PATA80 is sufficient, but maybe not.

Alan
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