svn commit: r198151 - in head/sys/dev: pci usb/controller

[John Baldwin]

On Friday 16 October 2009 1:09:22 am Andriy Gapon wrote:
> on 15/10/2009 23:07 Andrew Thompson said the following:
> > Author: thompsa
> > Date: Thu Oct 15 20:07:08 2009
> > New Revision: 198151
> > URL: http://svn.freebsd.org/changeset/base/198151
> > 
> > Log:
> >   Workaround buggy BIOS code in USB regard. By doing the BIOS to OS handover for
> >   all host controllers at the same time, we avoid problems where the BIOS will
> >   actually write to the USB registers of all the USB host controllers every time
> >   we handover one of them, and consequently reset the OS programmed values.
> 
> This should fix the boot-time problems with AMD SB600/SB7xx controllers.
> Many thanks to Hans for a lot of help.

At least one other system also exhibits this: Intel D850 motherboards (P4
system with RDRAM).  I think there is an amd64 PR about this as well that
may be for yet another system.

-- 
John Baldwin