Re: AHCI support Port Multiplier problem.

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Hello,

On Mon, Jan 10, 2011 at 07:54:29PM -0600, Robert Hancock wrote:
> I suspect that retrying with PMP=0 if the softreset with PMP=15
> failed to acquire a signature is likely the thing to do.

Of the non-platform ones, sb600 is the only one with this problem and
the workaround will unnecessarily lengthen response time for other
controllers.  I'd suggest implementing it as a quirk in libahci.c and
applying it only to the broken controllers.

Thanks.

-- 
tejun
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