| *************************** |
| Freescale i.MX8MQ EVK board |
| *************************** |
| |
| This file documents the Buildroot support for the Freescale i.MX8MQ |
| EVK board. |
| |
| Build |
| ===== |
| |
| First, configure Buildroot for the i.MX8MQ EVK board: |
| |
| If you want to use the NXP kernel: |
| |
| make freescale_imx8mqevk_defconfig |
| |
| Or if you want to use a mainline kernel: |
| |
| make imx8mqevk_defconfig |
| |
| Build all components: |
| |
| make |
| |
| You will find in output/images/ the following files: |
| - bl31.bin |
| - boot.vfat |
| - fsl-imx8mq-evk.dtb |
| - Image |
| - imx8-boot-sd.bin |
| - lpddr4_pmu_train_fw.bin |
| - rootfs.ext2 |
| - rootfs.ext4 |
| - rootfs.tar |
| - sdcard.img |
| - signed_hdmi_imx8m.bin |
| - u-boot.bin |
| - u-boot.imx |
| - u-boot-nodtb.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.MX8MQ EVK board |
| ========================== |
| |
| To boot your newly created system: |
| - insert the SD card in the SD slot of the board; |
| - Configure the switches as follows: |
| SW801: ON ON OFF OFF |
| SW802: ON OFF |
| - put a micro USB cable into the Debug USB Port and connect using a terminal |
| emulator at 115200 bps, 8n1; |
| - power on the board. |
| |
| Enable HDMI output |
| ================== |
| |
| To enable HDMI output at boot you must provide the video kernel boot |
| argument. To set the video boot argument from U-Boot run after |
| stopping in U-Boot prompt: |
| |
| setenv mmcargs 'setenv bootargs console=${console} root=${mmcroot} video=HDMI-A-1:1920x1080-32@60' |
| saveenv |
| reset |
| |
| Change screen resolution to suit your connected display. |
| |
| Enjoy! |
