TQMa95xxLA - YOCTO Linux BSP documentation

Known Issues

Known Issues BSPs

Known Issues scarthgap-next

  • SCMI access to board resources from system manager not completely implemented

  • USB

    • The USB Type-C connector (X9 on MBa95xxCA) currently only supports USB device mode.

    • USB host is not supported when booting in serial download mode

      USB0 signals are routed to X9 when booting with serial download mode

    • USB dual role port X9 via USB1 is not supported with serial download mode

      USB1 controller is disabled in serial download mode to allow using USB0 as device on X9.

    • Serial download mode needs to be selected explicitely on dip switch S1,

      The dip switch S1 controls routing of USB signals to the USB dual role port X9. In case of no / invalid boot image on primary boot device the ROM loader automatic fallback to serial download mode does not work.

    • USB host support is disabled in U-Boot

  • Currently no separate boot image for serial downloader support is built.

    All required features are configured in the default boot image.

  • UBI / UBIFS images are enabled by default when using DISTRO=spaetzle[-nxp].

    The generated rootfs size must not exceed the size defined by UBI_LEB_SIZE and UBI_MAX_LEB_COUNT on machine level.