RE: How to Force PIO mode on sata promise (Linux 2.6.10)

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Hi Clemens,

How did you disabled the DMA ?

David 

-----Message d'origine-----
De : Clemens Koller [mailto:[email protected]] 
Envoyé : mercredi 21 septembre 2005 16:15
À : David Sanchez
Cc : Jeff Garzik; [email protected]
Objet : Re: How to Force PIO mode on sata promise (Linux 2.6.10)

Hello, David, Jeff!

> I'm using the linux kernel 2.6.10 and busybox on an AMD db AU1550 with a
> hdd connected to the pata port of a PCI card (Promise PDC20579).

I'm using a PDC20269 (on Promise Ultra133TX2 card) w/ DMA disabled on
an embedded ppc (MPC8540). I cannot use DMA, too.
I guess it's a PCI IRQ/REQ/GNT problem on my board.
With DMA disabled I haven't had any problems on my system.
I am going to use a PDC20275 in the future.

My .config of a linux-2.6.13-rc7 is attached.

And... I know other guys with similar problems on embedded environments.
Unfortunately I wasn't able to have a closer look at this problem yet.

Best greets,

-- 
Clemens Koller
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