TQMa6ULx - YOCTO Linux BSP documentation


Known Issues

Known Issues BSPs

Known Issues scarthgap.TQ.ARM.BSP.0006

  • edt-ft5406 touch controller on some Glyn displays might cause CRC errors after restart using reboot command. At startup as well as during runtime. The device is still functioning though.
  • MBa6ULxL: DPI with Glyn / ETM0700 produces invalid color mapping. Output shows therefore wrong colors.
  • MBa6ULxL: accuracy of ADC is limited due to board layout.
  • Linux / DTB: when booting kernel versions from this BSP the disabling of fused IP in device tree before loading the OS may fail with U-Boot from older BSP versions. Device tree path names were changed several times in CPU device tree fragment to conform the device tree specification.
  • UBI / UBIFS images are enabled by default when using DISTRO=spaetzle. The generated rootfs size must not exceed the size defined by UBI_LEB_SIZE and UBI_MAX_LEB_COUNT on machine level. The distro definition and the image recipes tq-image-small-[debug] are intended for demonstration of howto generate a system running from SPI-NOR. This does not make any claims on feature / functional completeness.
  • Environment of U-Boot v2023.04 was reworked to use variable names that conforms with distroboot contract. The default environment of older U-Boot versions are incompatible.
  • MBa6ULx: USB devices at miniPCIe connector (X22) are not detected after POR. After warm reset devices enumerate.