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*************************** Freescale i.MX8MN EVK board *************************** This file documents the Buildroot support for the i.MX8M Nano EVK board. Build ===== First, configure Buildroot for the i.MX8MN EVK board: make freescale_imx8mnevk_defconfig Build all components: make You will find in output/images/ the following files: - bl31.bin - boot.vfat - ddr4_201810_fw.bin - ddr_fw.bin - fsl-imx8mn-ddr4-evk.dtb - Image - imx8-boot-sd.bin - rootfs.ext2 - rootfs.ext4 - rootfs.tar - sdcard.img - u-boot.bin - u-boot.imx - u-boot.itb - u-boot-nodtb.bin - u-boot-spl.bin - u-boot-spl-ddr.bin Create a bootable SD card ========================= To determine the device associated to the SD card have a look in the /proc/partitions file: cat /proc/partitions Buildroot prepares a bootable "sdcard.img" image in the output/images/ directory, ready to be dumped on a SD card. Launch the following command as root: dd if=output/images/sdcard.img of=/dev/<your-sd-device> *** WARNING! This will destroy all the card content. Use with care! *** For details about the medium image layout, see the definition in board/freescale/common/imx/genimage.cfg.template_imx8. Boot the i.MX8MN EVK board ========================== To boot your newly created system (refer to the i.MX8MNano EVK Quick Start Guide [1] for guidance): - insert the SD card in the SD slot of the board; - Configure the switches as follows (X = "don't care"): SW1101: 1100XXXXXX [D1-D10] SW1102: XXXXXXXXXX [D1-D10] - put a micro USB cable into the Debug USB Port and connect using a terminal emulator at 115200 bps, 8n1; - power on the board. Enjoy! References ========== [1] https://www.nxp.com/design/development-boards/i-mx-evaluation-and-development-boards/evaluation-kit-for-the-i-mx-8m-nano-applications-processor:8MNANOD4-EVK