SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
PCIe boot mode is not executable-in-place (XIP). ROM code first copies boot image into on-chip RAM and then executes it.
PCIe Boot Flow:
Once the PCIe link is up in J7AEP, R5 Rom waits for two specific checks to continue the Boot sequence.
The Host (root complex) after copying the full image has to write the Start address(32bit) of the Image on the address location (0x41CF3FE0).
The Host (root complex) after copying the Full image, it has to write a Magic Word (0xB17CEAD9) on the address location (0x41CF3FE4).