On 6/27/19 3:06 PM, Jean-Jacques Hiblot wrote:
Resend after rebasing on top of latest u-boot
The K2 platforms have shown boot issues after switching to the DWC3 generic driver. Those are due to the fact that the USB domains are not turned off before booting linux and the phy were not properly initialized. Fixing it by improving the DWC3-generic driver and handling the USB power domain in the PHY driver. At the same time this series introduce a new uclass (UCLASS_NOP) to replace usage of UCLASS_MISC in the USB wrapper because the MISC class now automatically binds all the child devices and that breaks the DWC3-generic driver.
Improvements to the DWC3 generic driver are:
- Fix it by switching to UCLASS_NOP
- core: read quirks properties from DT and apply the fixes.
- add a new host driver that uses the DWC3 core (more generic than xhci-dwc3). This should enable most platforms to drop their own version of the xhci-driver to use the generic one instead.
This series also removes the now unused xhci-zynqmp driver and tries to better manage the Kconfig options related to DWC3 gadget/host mode selection.
This has been tested with K2 and DRA7 platforms (host and device modes). Travis build: https://travis-ci.org/jjhiblot/u-boot/builds/515282720
Lemme put this in next and see what happens, thanks.