svn commit: r261216 - head/sys/dev/pccbb

John Baldwin jhb at freebsd.org
Tue Feb 4 21:45:52 UTC 2014


On Sunday, February 02, 2014 5:34:58 pm Gavin Atkinson wrote:
> On Mon, 27 Jan 2014, John Baldwin wrote:
> > Author: jhb
> > Date: Mon Jan 27 19:49:52 2014
> > New Revision: 261216
> > URL: http://svnweb.freebsd.org/changeset/base/261216
> > 
> > Log:
> >   Explicitly enable I/O and memory decoding in the bridge's command register
> >   when activating an I/O or memory window on the CardBus bridge.
> 
> This fixes some, but not all of my machines.  One in particular, a Toshiba 
> M5 laptop, remains broken by r254263 even with this change.  Specificaly, 
> the laptop does not notice when a card is inserted.
> 
> The attached minimal patch gets things working again, though I don't know 
> if is the correct fix or if a more involved fix is required.
> 
> dmesg before and after that patch:
> 
> http://people.freebsd.org/~gavin/m5-dmesg-before.txt
> http://people.freebsd.org/~gavin/m5-dmesg-after.txt
> 
> The only difference is the cbb register dump, the one bit that I am 
> setting in the patch.

Your patch effectively reverts r254263.  It may be the correct thing to do,
but the question is why. :)  Can you provide 'pciconf -lbc' output for this
device?  (You can just do 'pciconf -lbc pccbb0' in HEAD now)

-- 
John Baldwin


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