Re: [loongson-PATCH-v1 24/27] fixup for FUJITSU disk

Martin K. Petersen
2009-05-25T19:11:54Z

>>>>> "Sergei" == Sergei Shtylyov <sshtylyov@ru.mvista.com> writes:

>> Could you please explain the issue with platform specific code a bit
>> more?

>> Is it related to a cable detection by any chance?

Sergei> I guess it's rdmsr()/wrmsr()...

Those are only used when the driver is explicitly loaded with
use_msr=1. The default is to use PCI config space/VSA.

In any case I have yet to see a CS5536 system whose BIOS sets the cable
detection bit. If that's the problem I guess we could add a quirk flag
to override the (lack of) BIOS setting.

--
Martin K. Petersen Oracle Linux Engineering