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

From: Martin K. Petersen
Date: Mon May 25 2009 - 15:12:01 EST

>>>>> "Sergei" == Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx> 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

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