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SubjectRe: sata dvdroms fails to be recognized by MCP55 controller with the 2.6.26.5 kernel
(restoring lkml and linux-ide.  please don't drop cc list)

Tejun Heo wrote:
> Hello,
>
> gettinther wrote:
>> 00:05.2 IDE interface: GeForce 8800 GT 512 MCP55 SATA Controller (rev
>> a2) (prog-if 85 [Master SecO PriO])
>
> Ah.. okay. MCP55. I've missed that part in the first message.
> sata_nv is a bit messed up for 2.6.26. What happened was...
>
> * During 2.6.26-rc, libata switched to prefer hardreset over softreset
> for various reasons.
>
> * After 2.6.26 release, sata_nv generic flavors (MCP55/66) were
> reported to have problems probing devices with hardreset. Hardreset
> simply doesn't work.
>
> * Patch posted to disable hardreset for generic but it accidentally
> disabled hardreset for all flavors (generic/nf2/3/ck804).
>
> * Which broke ck804.
>
> * Another patch posted to reinstate hardreset for nf2/3 and ck804.
>
> * It somehow mysteriously broke nf2/3. This is still being
> investigated.
>
> Sorry about the mess but I am puzzled too. I'll report back when I
> know more.
>
> Thanks.
>


--
tejun


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