[PATCH v2] usb: xhci: Workaround to fix the USB halted endpoint issues

[Tom Rini]

On Fri, Oct 13, 2023 at 11:11:04AM -0400, Da Xue wrote:
> On Fri, Oct 13, 2023 at 7:47 AM Marek Vasut <marex at denx.de> wrote:
> >
> > On 10/13/23 06:53, Venkatesh Yadav Abbarapu wrote:
> > > The xhci host controller driver trying to queue the URB's and it is
> > > getting halted at the endpoint, thereby hitting the BUG_ON's.
> > > Mostly these kind of random issues are seen on faulty boards.
> > > Removing these BUG_ON's from the U-Boot xhci code, as in Linux kernel
> > > xhci code BUG_ON/BUG's are removed entirely.
> > > Please also note, that BUG_ON() is not recommended any more in the Linux
> > > kernel.
> > > Similar issue has been observed on TI AM437x board and they created a patch
> > > in Linux kernel as below
> > > https://patches.linaro.org/project/linux-usb/patch/1390250711-25840-1-git-send-email-balbi@ti.com/
> > >
> > > Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu at amd.com>
> >
> > I already explained to Xilinx how to sync the driver with Linux and why
> > this is needed to move forward, multiple times, and even provided a
> > script which does most of the work automatically, since it is basically
> > automated process. Xilinx did not even bother to test the script and
> > provide any feedback.
> >
> > Until that happens, this patch is rejected.
> 
> This patch also causes all of the USB devices on certain platforms to
> not be detected:
> 
> scanning bus usb at c9000000 for devices... Device not responding to set address.
> 
>       USB device not accepting new address (error=80000000)

Yes, we are stuck at the impasse where the custodian is asking for
someone to try and do the re-sync, and everyone else will assist with
testing on other platforms, but the re-sync hasn't happened.  Can we
please get someone from AMD to attempt the re-sync?

-- 
Tom
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