SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
PCIe boot mode is not eXecute-In-Place (XIP). ROM code first copies boot image into on-chip RAM and then executes it.
The image copied should be within the first 0x18000 bytes of the area. Once the Root Complex has finished copying the image, then it needs to write the PCIe boot data address to 0x701BCFE0
For example, if the Root Complex loads the image at offset 0x1000, then when it is done it would write 0x70001000 (Internal RAM memory base + offset) to 0x701BCFE0. This will let the ROM know that this image is ready to be authenticated and processed.