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+Polyhex Debix Model A
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+=====================
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+
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+DEBIX Model A is an industrial grade single board computer
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+powered by NXP i.MX 8M Plus applications processor
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+
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+https://www.debix.io/hardware/model-a.html
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+User Manual: [1]
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+
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+
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+How to build it
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+===============
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+
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+Configure buildroot:
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+
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+ $ make polyhex_debix_model_a_defconfig
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+
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+Change settings to fit your needs (optional):
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+
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+ $ make menuconfig
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+
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+Compile everything and build the rootfs image:
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+
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+ $ make
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+
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+
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+Result of the build
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+===================
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+
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+After building, the output/images directory contains:
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+
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+output/images/
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+├── bl31.bin
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+├── ddr_fw.bin -> /home/gilles/buildroot-dev/output/images/lpddr4_pmu_train_fw.bin
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+├── flash.bin
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+├── freescale
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+│ └── imx8mp-debix-model-a.dtb
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+├── genimage.cfg
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+├── Image
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+├── lpddr4_dmem_1d_v202201.bin
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+├── lpddr4_dmem_2d_v202201.bin
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+├── lpddr4_dmem_qb_v202201.bin
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+├── lpddr4_imem_1d_v202201.bin
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+├── lpddr4_imem_2d_v202201.bin
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+├── lpddr4_imem_qb_v202201.bin
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+├── lpddr4_pmu_train_1d_dmem_201904.bin
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+├── lpddr4_pmu_train_1d_dmem_202006.bin
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+├── lpddr4_pmu_train_1d_dmem.bin
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+├── lpddr4_pmu_train_1d_dmem_pad.bin
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+├── lpddr4_pmu_train_1d_fw.bin
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+├── lpddr4_pmu_train_1d_imem_201904.bin
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+├── lpddr4_pmu_train_1d_imem_202006.bin
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+├── lpddr4_pmu_train_1d_imem.bin
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+├── lpddr4_pmu_train_1d_imem_pad.bin
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+├── lpddr4_pmu_train_2d_dmem_201904.bin
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+├── lpddr4_pmu_train_2d_dmem_202006.bin
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+├── lpddr4_pmu_train_2d_dmem.bin
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+├── lpddr4_pmu_train_2d_dmem_pad.bin
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+├── lpddr4_pmu_train_2d_fw.bin
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+├── lpddr4_pmu_train_2d_imem_201904.bin
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+├── lpddr4_pmu_train_2d_imem_202006.bin
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+├── lpddr4_pmu_train_2d_imem.bin
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+├── lpddr4_pmu_train_2d_imem_pad.bin
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+├── lpddr4_pmu_train_fw.bin
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+├── lpddr4x_dmem_qb_v202306.bin
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+├── lpddr4x_dmem_qb_v202311.bin
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+├── lpddr4x_dmem_v202306.bin
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+├── lpddr4x_dmem_v202311.bin
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+├── lpddr4x_imem_qb_v202306.bin
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+├── lpddr4x_imem_qb_v202311.bin
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+├── lpddr4x_imem_v202306.bin
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+├── lpddr4x_imem_v202311.bin
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+├── rootfs.ext2
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+├── rootfs.ext4 -> rootfs.ext2
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+├── rootfs.tar
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+├── sdcard.img
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+├── u-boot.bin
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+└── u-boot-spl.bin
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+
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+
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+Flashing the SD card image
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+==========================
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+
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+To install the image on a SDCard simply copy sdcard.img to the storage (e.g. SD, eMMC)
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+
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+ $ sudo dd if=output/images/sdcard.img of=<your-sd-device>
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+
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+
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+Booting the board
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+=================
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+
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+To boot your newly created system:
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+- insert the SD card in the SD slot of the board;
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+- if you use a Debix I/O daughter card, follow the instructions provided
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+in [2], section 3.1 for the hardware connection between the main board
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+and the I/O daughter card. Then, put a micro USB cable into the I/0 daughter card
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+Debug USB Port and connect using a terminal emulator at 115200 bps, 8n1;
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+- if you do not use a Debix I/O daughter card, connect a USB-to-TTL serial cable to
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+the 40-pin header (J2) on the main board, the following way:
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+ USB-to-TTL cable GND pin to J2 pin 05
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+ USB-to-TTL cable TX pin to J2 pin 09
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+ USB-to-TTL cable RX pin to J2 pin 11
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+ connect using a terminal emulator at 115200 bps, 8n1;
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+- power on the board.
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+
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+Enjoy!
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+
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+
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+References
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+==========
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+[1] https://www.debix.io/Uploads/Temp/file/20250207/DEBIX%20User%20Manual-V3.5.pdf
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+[2] https://www.debix.io/Uploads/Temp/file/20241225/DEBIX%20IO%20Board%20User%20Manual-V1.1.pdf
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Gilles Talis