Re: [PATCH] usb: dwc3: Enable GBit Ethernet on Odroid XU4

[Jochen Sprickerhof]

Hi Marek,

* Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> [2019-03-11 12:11]:
> Hi Jochen,
>
> On 2019-02-08 20:35, Jochen Sprickerhof wrote:
> > Hi Marek,
> >
> > * Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> [2019-02-08 13:36]:
> > > > > > On 21/01/19 16:02, Jochen Sprickerhof wrote:
> > > > > [..]
> > > > > > > I'm not sure why this it only works with the driver compiled into
> > > > > > > the
> > > > > > > kernel nor why it needs a hard reset or why it was the line was
> > > > > > > dropped
> > > > > > > when the patch was accepted. Would be great to get some feedback
> > > > > > > of the
> > > > > > > authors.
> > > > > > When XHCI driver is compiled into the kernel are the relevant PHY
> > > > > > drivers
> > > > > > compiled in as well?
> > > > > Only CONFIG_USB_PHY=y (I took the config from the
> > > > > linux-image-4.19.0-1-armmp_4.19.13-1_armhf.deb Debian package as a
> > > > > basis where this is the default).
> > >
> > > I confirm that on Odroid XU4 USB 3.0 works only when all related drivers
> > > (dwc3, xhci and exynos5 drd phy) are compiled into the kernel. If they
> > > are compiled as modules, USB 3.0 calibration doesn't work. The mentioned
> > > patch doesn't fix anything.
> >
> > I've just tried Linux v5.0-rc5 with the Debian config and
> > USB_XHCI_PLATFORM=y and it works, thanks!
> >
> > Is there a way to make it work with xhci compiled as a module, so it
> > would work in Debian out of the box?
>
> One more comment - 5000M mode will also work with everything compiled as
> modules (dwc3, exynos5 drd phy and xhci-plat) too. Just make sure that
> xhci-plat is loaded before dwc3. This would require some manual
> configuration, because autoloading will load xhci-plat after dwc3 probe
> and switch to host mode.

Thanks so much for the hint, this made it working :). I opened a bug 
with Debian:

https://bugs.debian.org/925167

Cheers Jochen

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