Hi @CheneyDu,
There are three ways to add a custom splash screen on Linux described by some references like these:
Change Boot Logo [Khadas Docs]
How to Change the BSP Logos (variscite.com)
The first one is to enable the Uboot splash screen and add your custom image.
The second one is to use the actual splash screen provided by the Linux Kernel, here you will need to add a patch to the Linux Kernel directly on our Yocto Project BSP and build the Kernel to display your splash screen.
For these two options, you can follow the manuals shared by Kadas and Variscite, but these options have support for static images.
Regarding animation, unfortunately, NXP doesn’t provide any fully supported way to implement this splash screen. However, I could find an option to implement animations on the boot process named EasySplash you can find the documentation at the following link:
GitHub - OSSystems/EasySplash: EasySplash - tool for animated bootsplash screens
I hope this information will be helpful.
Have a great day!
Best regards, Brian.
