On 18/03/2019 11:11, Neil Armstrong wrote: > This patchset adds support for USB on Amlogic G12A SoCs. > > This patchset is composed with : > - bindings of the PHYs > - bindings of the USB Control Glue > - PHY Drivers > - USB Control Glue driver > > Device Tree nodes will be added in a separate patchset. > > The Amlogic G12A USB Complex is composed of : > - 2 USB Controllers : > * DWC3 for USB2 and USB3 Host functionality > * DWC2 for USB2 Peripheral functionality > - 2 USB2 OTG PHYs, only a single one will be routed to either DWC2 to DWC3 > - 1 USB3 PHY shared with PCIE funcionnality > - A Glue to control PHY routing, setup and OTG detection > > The Glue configures the UTMI 8bit interfaces for the USB2 PHYs, including > routing of the OTG PHY between the DWC3 and DWC2 controllers, and > setups the on-chip OTG mode selection for this PHY. > > This drivers supports the on-probe setup of the OTG mode, and manually > via the USB Role interface. The IRQ mode change detect is yet to be added > in a future patchset, mainly due to lack of hardware to validate on. > Resent with USB2 PHY registers documented Neil
