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Foreward: Not sure if this better fits in board bring up, but I can't post there, so feel free to move if appropriate. I'm looking into the feasibility of using the Armbian build system to generate OS images for the Avnet MicroZed board. This board is based on the Xilinx Zynq 7000 platform, which is a SoC made up of a dual core 500 MHz CPU, and a Artix-7 generation FPGA. The CPU is nothing to write home about, but the FPGA opens up an interesting array of possibilities. Just in case you need an ARM board with 100+ GPIO, over two dozen serial ports, or your own function generator. Really, you're limited only by pin count, FPGA fabric usage, and what you can manage in Vivado. Xilinx also has an active presence on GitHub, and branches for kernels as new as 5.12, so sees active support. The big rub, is that the Zynq CPU boots off a VFAT partition, that contains a file named "boot.bin". This boot file combines the first stage bootloader (FSBL) and u-boot, and needs to execute a C application to assemble this file. The application is recently open sourced, and previously existing open source software also exists. But I'm not sure how best to integrate that with the build system, or identify that the platform u-boot package depends on this extra package.
