[EXT] USB3 XHCI crashing with USB 3 hub on Octeon

Nicolas Saenz Julienne nsaenzjulienne at suse.de
Tue Feb 23 10:23:04 CET 2021


On Tue, 2021-02-23 at 09:15 +0100, Stefan Roese wrote:
> Hi Bin,
> Hi Aaron,
> 
> I've added Nicolas to Cc, as he also recently did some work on the
> physical vs virtual addresses in the xHCI driver.
> 
> On 23.02.21 09:07, Bin Meng wrote:
> > Hi Aaron,
> > 
> > On Tue, Feb 23, 2021 at 3:31 PM Aaron Williams <awilliams at marvell.com> wrote:
> > > 
> > > I have a follow-up. USB is working on our OcteonTX boards running 2020.10. It
> > > may be something specific to the Octeon port. Note that I did see a problem
> > > where the scratchpad memory is using direct pointers instead of physical
> > > addresses (which will not work on MIPS). As far as I know, however, the Octeon
> > > XHCI controller does not use the scratchpad memory.
> > > 
> > 
> > Do you plan to send a patch to convert the scratchpad pointer to
> > physical address?
> 
> Nicolas, did your patch also address the scratchpad area (sorry for not
> looking myself).

Yes, my patch took care of that :).

Regards,
Nicolas

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