sb600/sb700 ohci experimental patch

[Svein Skogen (listmail account)]

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Andriy Gapon wrote:
> on 24/09/2009 17:51 Hans Petter Selasky said the following:

*SNIP!*

> 
> Not sure how to interpret this.
> Either a timing issue, i.e. the register gets over-written some time after we
> program it.
> Or perhaps a bug in SMM code, i.e. when we generate an SMI (e.g. while doing
> ohci1 takeover) SMM code erroneously writes something to ohci0 ctrlhead.
> Or something else... :)

Could it be related to "USB Legacy Devices" in bios, and thus be the
same problem that was discussed recently (regarding HZ larger than 1000)?

An usb-legacy setup might explain both the register-changing _AND_ the
timing issue...

//Svein

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