Hello Andrew, thanks for this series. On Wed, Feb 14, 2024 at 10:30:09AM -0600, Andrew Davis wrote: > The current address of TF-A in DRAM is just below the 512MB address line. > This means if the DRAM in a system is 512MB then TF-A is right at the > end of memory which is often reused, for instance U-Boot relocates itself > here. If a system has less than 512MB then that system wouldn't work at > all as TF-A would fail to load.
Do you expect issue with system with exactly 512MB of RAM? We have such a board available and this is something that was not on our radar. The way we handle this is with `verdin-am62.c:board_get_usable_ram_top()` There is also some other reserved memory just before the 512MB limit, not just the TF-A. Francesco
