U-boot dynamically load drivers at runtime.

[romainmoura]

Hello,
Here is my problem, I have two different display version of a product for a single electronic board. I'll like to have only one u-boot binary for both version and correctly display the uboot splash screen. The problem is that I have no idea on how to dynamically load the display driver at runtime. My drivers are OK, I test with different compiled device tree file, it is fine. But is it possible to dynamically load a specific driver or boot on specific device tree file (and I'm not talking about dynamically point a device tree file for the kernel, this point is OK)?
For example, having two Device Tree Files (ex myBoard-disp7inch.dts and myBoard-disp10inch.dts) and, at an early boot stage, determine the connected display (based on the touch panel I2C for example) to load the good dts file (as it seems to be usually done for the kernel device tree files).
Thanks for your help

[Alejandro_Salas]

Hello @romainmoura !

Could you please refer to this Post:

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/u-boot-runtime-modify-Linux-device-tree-...

There is explained how to modify the device tree at runtime, Let me know if that thread can help to you.

Best regards!

[romainmoura]

Hello,

Thank you for this answer.

But this not what I'm looking for. This post is about modifying the Linux device tree, I'm looking for modifying the u-boot device tree or, at least, in the initialising function, select the drivers I want to load.

I got several display options for my devices, I need to check which one is connected to load the driver and display the u-boot splash screen.

Best regards,