When do we need to manually change PRELOADER generated files?

1

Hello,

The general scheme of building preloader is composed of:

handoff ->; preloader config + u-boot-spl source code ->; binary

So it is usually " automatic " build without any customization.

Yet, it seems that sometimes there might be a need to manually modify the code before building the binary:

I try to understand when do we manually change code.

I read somewhere that enabling the bridge is done from preloader:

https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/embedded/2016/how-and-when-can-i-enable-the-fpga2sdram-bridge-on-cyclone-v-soc.html

Does it mean that some file should be modified in order to enable the bridge or is it part of the code generator ?

When do we need to manually modify the generated code ?

Thank you,

ranran