Hey Philippe, I took a second look at this and, it seems my previous suggestion was only partly valid. The kernel error you reported came from the driver in drivers/usb/musb/sunxi.c. Apparently, this is an Allwinner specific driver for M-USB. And I don't see it documented in the A10 user manual.
On the other hand, the USB host interfaces EHCI/OHCI do apply for the A10 SoC and this board. Linux has them defined in the DTB in arch/arm/boot/dts/sun4i-a10.dtsi (ehci0/1, ohci0/1). But probably that is for another patch/commit. Regards, Niek On Mon, Dec 30, 2019 at 2:56 PM Philippe Mathieu-Daudé <phi...@redhat.com> wrote: > On 12/30/19 12:33 PM, Niek Linnenbank wrote: > > Hello Philippe, > > > > I have a suggestion: probably you can apply (almost) the same patch to > > get USB > > working for A10 as I did in the Allwinner H3, in patch #4 "add USB host > > controller" [1] > > That way you can avoid the DTB modifications and with low effort get USB > > working as well for this board. > > As far as I can see, in Section 21.1 in the A10 user manual [2] has the > > same description > > as for the H3. It basically has the standard EHCI and OHCI interfaces. > > Oh good news. I guess in the long term we want a AllwinnerSoc parent > class where all common blocks are mapped, and A10/H3 children with the > differences. But we'll worry about that after your H3 series get merged. > > > [1] https://lists.gnu.org/archive/html/qemu-devel/2019-12/msg03266.html > > [2] https://linux-sunxi.org/File:Allwinner_A10_User_manual_V1.5.pdf > > > > Regards, > > Niek > > -- Niek Linnenbank
