1*************************** 2Freescale i.MX8MM EVK board 3*************************** 4 5This file documents the Buildroot support for the Freescale i.MX8MM 6EVK board. 7 8Build 9===== 10 11First, configure Buildroot for the i.MX8MM EVK board: 12 13 make freescale_imx8mmevk_defconfig 14 15Build all components: 16 17 make 18 19You will find in output/images/ the following files: 20 - bl31.bin 21 - boot.vfat 22 - fsl-imx8mm-evk.dtb 23 - Image 24 - imx8-boot-sd.bin 25 - lpddr4_pmu_train_fw.bin 26 - rootfs.ext2 27 - rootfs.ext4 28 - rootfs.tar 29 - sdcard.img 30 - u-boot.bin 31 - u-boot.imx 32 - u-boot-nodtb.bin 33 - u-boot-spl-ddr.bin 34 35Create a bootable SD card 36========================= 37 38To determine the device associated to the SD card have a look in the 39/proc/partitions file: 40 41 cat /proc/partitions 42 43Buildroot prepares a bootable "sdcard.img" image in the output/images/ 44directory, ready to be dumped on a SD card. Launch the following 45command as root: 46 47 dd if=output/images/sdcard.img of=/dev/<your-sd-device> 48 49*** WARNING! This will destroy all the card content. Use with care! *** 50 51For details about the medium image layout, see the definition in 52board/freescale/common/imx/genimage.cfg.template_imx8. 53 54Boot the i.MX8MM EVK board 55========================== 56 57To boot your newly created system (refer to the i.MX8MMini EVK Quick Start Guide 58[1] for guidance): 59- insert the SD card in the SD slot of the board; 60- Configure the switches as follows: 61SW1101: 0110110010 [D1-D10] 62SW1102: 0001101000 [D1-D10] 63- put a micro USB cable into the Debug USB Port and connect using a terminal 64 emulator at 115200 bps, 8n1; 65- power on the board. 66 67Enjoy! 68 69References 70========== 71[1] https://www.nxp.com/document/guide/Get-Started-with-the-i.MX-8M-Mini-EVK:GS-iMX-8M-Mini-EVK 72