Re: [PATCH 2.6.22-rc7 3/3] libata: pata_via CX700 quirks

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On Thu, 5 Jul 2007 13:39:49 +0900
Tejun Heo <htejun@xxxxxxxxx> wrote:

> For some reason, via decided that combined SATA/PATA setup in sata_via
> isn't good enough and added a SATA port without SCR access to CX700.

(It seems to be an integrated PATA/SATA bridge of some sort)

> For yet another unknown reason, slave slot of the SATA port dislikes
> SETXFER.
> 
> This patch implements two quirks for CX700 - VIA_SATA_PATA and
> VIA_BAD_SLAVE_SETXFER.  SATA_PATA indicates that the first port is
> SATA and BAD_SLAVE_SETXFER indicates slave port may fail SETXFER.

This makes no sense. If the SETXFER failed how did the device get into
the mode it is in ? How will change down work ? Why does the old IDE
driver work ?

I think this needs a lot more explanation

NAK

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