Hi Thomas, first of all, thanks for following the documentation when reporting a bug, much appreciated. Thomas JOURDAN <thomas.jourdan@xxxxxxxxx> writes: > On the UP2 board, it is not possible in device mode to get the USB3.0 > OTG port working at superspeed. It is unclear yet if it is a bug in > the Linux DWC3 driver or the board itself. > > I have tried many cables, different host computers (Windows or Linux), > and the connection always links at hi-speed. In host mode, it works > fine at super speed. I tried many kernels, from upboard official one > to latest RC version ans the problem persists. So, it doesn't work with UP's original kernel either? Then I'm pretty sure either the board doesn't support super speed on the micro-b connector, or the board is faulty. > GUID = 0x00041300 4.19. Cool, thanks for testing mainline > DCFG = 0x004e0814 maximum speed is set to super speed > [ 74.055170] g_ether gadget: high-speed config #2: RNDIS but it enumerates in high speed. From your trace.txt, I don't see the early enumeration phase, so I can't comment one what happened during that time. Care to rerun this so that we have early enumeration? I need to see a Reset Event on the trace as that's the first event when you first plug your usb cable. -- balbi
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