On Thu, Jun 20, 2019 at 9:02 AM Andre Przywara <andre.przywara@xxxxxxx> wrote: > > In recent Allwinner SoCs the first USB host controller (HCI0) shares > the first PHY with the MUSB controller. Probably to make this sharing > work, we were avoiding to declare this in the DT. This has two > shortcomings: > - U-Boot (which uses the same .dts) cannot use this port without a PHY > linked, so we were loosing one USB port there. > - It requires the MUSB driver to be enabled and loaded, although we > don't actually use it. > > For those (64-bit) boards which use an USB-A socket for HCI0/MUSB, add > a "phys" property pointing to the USB PHY 0. > > This makes it work in U-Boot, also improves compatiblity when no MUSB > driver is loaded (for instance in distribution installers). > > Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> > --- > Hi, > > I have the feeling this belongs into the .dtsi, but cant't tell for sure > how this interacts with the MUSB driver. If need be, we can always pull > this up later, I guess. Have you tried if gadget mode and switching between gadget/host mode on an otg port still works? AFAICT that would be the main thing to worry about. ChenYu
