Hi, Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx> writes: >>>>>> We've noticed that when using usb ethernet adapters on HiKey, we >>>>>> occasionally see errors like: >>>>>> >>>>>> dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 0 - ChHltd set, >>>>>> but reason is unknown >>>>>> dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x06200029 >>>>>> >>>>>> dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 11 - ChHltd set, >>>>>> but reason is unknown >>>>>> dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029 >>>>>> >>>>>> Sometimes followed up by a usb error in the driver, something like: >>>>>> asix 1-1.2:1.0 eth0: asix_rx_fixup() Bad Header Length 0x36000807, offset 68 >>>>>> >>>>>> Curious if you've seen any reports like this? >>> >>> The core version is less than 2.71a, am I right? >> >> So it looks like its reporting 0x4f54300a for hsotg->regs + GSNPSID >> which looks like DWC2_CORE_REV_3_00a >> >>> Please send full debug log to do more investigation. >> >> Full dmesg, or is there special debugging you want me to enable? > > Full dmesg around issue. >> >>> Also send us regdump after connecting ethernet adapter. >> >> Sorry, can you clarify how to generate this? > > cat regdump. To locate dwc2 regdump file: cd /; find -name regdump this won't work if his distro doesn't mount debugfs. Please give complete instructions ;-) # mkdir -p /d # mount -t debugfs none /d # cd /d # find . -name regdump The directory name is the same name as the dwc2 device name, AFAICT. So, check your DTS for the name of the device. -- balbi
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