TQMa91xxCA - YOCTO Linux BSP documentation

NFS boot: The interface to be used for NFS boot (netdev) has inverted order, compared to u-boot and Linux. Device renaming in Linux happens after mounting rootfs.
U-Boot:
- Not all USB sticks are detected properly.
- Using usb reset in U-Boot will give a warning from Type-C port controller.
  The USB controller is configured as device only via device tree to support serial download use case.
- boot from USB using uuu config displays misleading pinctrl / iomux warning.
  The UDC gadget driver warns not only for failed pinmux but also when no pinmux group is assigned in device tree.
- watchdog will reset the system after using wdt start [timeout].
  Watchdog is enabled but not configured for automatic servicing. If needed, CONFIG_WATCHDOG can be activated in defconfig.