Having a few small issues getting started with the DK2 board following the rather excellent instructions (thanks Robert!) at Debian: Getting Started with the STM32MP157 , specifically the biggest issue is that my USB powers down after boot. Extracts from from syslog;
[ 14.896426] dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator [ 14.896835] dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator [ 14.985167] stm32-dwmac 5800a000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off [ 14.985239] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 15.028098] dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM [ 15.036614] dwc2 49000000.usb-otg: DWC OTG Controller [ 15.036694] dwc2 49000000.usb-otg: new USB bus registered, assigned bus number 2 [ 15.037272] dwc2 49000000.usb-otg: irq 53, io mem 0x49000000 [ 15.041225] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10 [ 15.041251] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 15.041263] usb usb2: Product: DWC OTG Controller [ 15.041274] usb usb2: Manufacturer: Linux 5.10.41-armv7-lpae-x41 dwc2_hsotg [ 15.041285] usb usb2: SerialNumber: 49000000.usb-otg [ 15.043447] hub 2-0:1.0: USB hub found [ 15.045352] hub 2-0:1.0: 1 port detected
…and if I have a usb memory stick plugged in at this point it will init it, but later;
[ 33.763695] vref: supplied by vdd [ 33.763930] reg11: supplied by vdd [ 33.764060] usb33: supplied by vdd_usb [ 33.764222] vref: disabling [ 33.764241] reg11: disabling [ 33.764268] vdda: disabling
…and my memory stick is still there as /dev/sda1, but gives me access errors. Really a bit stuck on this one!
The second issue is that I cannot bring up WiFi, but I’ll keep fighting on that one because I suspect the problem is between the screen and the keyboard rather than anywhere inside the SoC.