Dear NXP team,
I downloaded L4.9.51-ga_images_mx8mq package from below link:
https://www.nxp.com/webapp/Download?colCode=L4.9.51_IMX8MQ_GA&appType=license&location=null&_gl=1*oo....
I tried to flash the fsl-image-qt5-validation-imx-xwayland-imx8mqevk.sdcard in the package to an SD card on a Linux PC by the command:
sudo umount /dev/sdb
sudo dd if=fsl-image-validation-imx-xwayland-optee-imx8mqevk.sdcard of=/dev/sdb bs=1M && sync
sudo eject /dev/sdb
After flashing, I found the SD card failed to boot the i.MX8MQ EVK. Nothing except a corrupted character was printed out in the debug UART.
Then I tried the u-boot images imx-boot-imx8mqevk-sd.bin-flash_evk of some different releases downloaded from NXP's official websites, by using below command to flash to the SD card:
sudo dd if=imx-boot-imx8mqevk-sd.bin-flash_evk of=/dev/sdb bs=1k seek=33 conv=fsync
The results were as below:
Linux 4.9.51_IMX8MQ_ga - Failed to boot, just printed a corrupted character.
L4.14.78_1.0.0_ga_images_MX8MQEVK - Succeeded to run u-boot
Linux 5.15.52-2.1.0 - Succeeded to run u-boot
Then I realized something wrong with the Linux 4.9.51's u-boot image of that release. See the attachment of the file.
BTW: I used to build a Yocto project of imx-linux by using the below command as to get the 4.9.51's code:
repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-morty -m imx-4.9.51-8mq_ga.xml
After the bitbake successfully ran and the building was finished, I found the output image files:
fsl-image-validation-imx-imx8mqevk.rootfs.sdcard, and
imx-boot-imx8mqevk-sd.bin-flash_evk
had the same problem as the downloaded release images of Linux 4.9.51_IMX8MQ_ga: unable to boot into u-boot, just printed a corrupted character.
