TQMLS102xA - YOCTO Linux BSP documentation

Known Issues

Known Issues BSPs

Known Issues scarthgap.TQ.ARM.BSP.0006

  • The power supply (VBUS) of the USB-OTG (X40) port can't be disabled on the MBLS102xA. The port must not be used in device mode.
  • Enumeration of USB devices connected to the USB-OTG port (X40) via a USB-OTG cable fails
  • After Power-On or restart the display might be blanked Use echo 0 > /sys/class/backlight/backlight/bl_power to unblank the display
  • HDMI's DDC channel is shared with on-board I2C. Not all displays might be supported due to address conflicts with DDC device IDs.
  • USB (X40) does not work
  • u-boot
    • Default MTD partition layout and boot script don't load files from UBIFS
    • No USB support
  • Linux: currently no out of the box support for Linux kernel on SPI-NOR
    • tq-image-small-debug image from spaetzle distribution is too large
  • RGB displays stay black although drivers are initialized properly