start_file=start.elf fixup_file=fixup.dat kernel=u-boot.bin disable_overscan=1 # U-Boot requires a UART port. There are three options for enabling one: # 1. Disable Bluetooth with dtoverlay=disable-bt # 2. Swap Bluetooth to the mini UART with dtoverlay=miniuart-bt # 3. Enable the mini UART as primary with enable_uart=1 dtoverlay=disable-bt