Re: [PATCH] libata: Add MMIO support to pata_sil680

[Guennadi Liakhovetski]

On Wed, 13 Feb 2008, Benjamin Herrenschmidt wrote:

> On Tue, 2008-02-12 at 15:58 +0000, Tim Ellis wrote:
> 
> > This change causes attached drives to no longer be detected and  
> > function on the PowerPC Buffalo Linkstation machines:
> > 
> > <7>pata_sil680 0000:00:0c.0: version 0.4.8
> > <6>sil680: 133MHz clock.
> > <6>scsi0 : pata_sil680
> > <6>scsi1 : pata_sil680
> > <6>ata1: PATA max UDMA/133 irq 18
> > <6>ata2: PATA max UDMA/133 irq 18
> > 
> > If I roll back this driver to before this change with 2.6.24.2 it works:
> 
> Hrm... and we need those patches for blades that have a sil680
> controller with no working PIO on the PCI host...
> 
> That's strange though. Somebody with knowledge of that HW (or specs) who
> can spot something ? Could it be an issue with timing ?
> 
> I don't have HW access to this machine. If somebody could send one to me
> I could do more investigation.

Ben, would an ssh access to such a machine and to a terminal server 
suffice?

Thanks
Guennadi
---
Guennadi Liakhovetski
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