On Wed, 29 Sep 2004 23:28:19 -0400, Jeff Garzik [off-list ref] wrote:

By default it only scans device 0, since SATA is a point-to-point
connection where there is no possibility for more than one device :)

However, some hardware chooses to emulate master/slave mode.  Use of
this, particularly on Vitesse/Intel, is highly discouraged in favor of
DPA mode.  I would prefer to not support master/slave mode at all.

I am using the DPA mode. There is no way to even have the controller
work in legacy mode with the sata driver. Although the generic IDE
driver can be tweaked to use that. And yes I agree, no point to
support the master/slave mode. It was done for backward compatibility
for whatever reason....
 

Technically speaking, one sets the ATA_FLAG_SLAVE_POSS flag to tell the
libata core to scan for device 1.

For some odd reason we are scanning device 1 on XScale IOP platform
with the exact same driver code. I'll have to investigate some more
and see why it's doing that.

-- 
-= Dave =-

Software Engineer - Advanced Development Engineering Team 
Storage Component Division - Intel Corp. 
mailto://dave.jiang @ intel
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