What's the difference between ARM and other versions?What should I choose for TX3(S905X3)?

I am not sure how to select ARCH for TX3 (S905X3) when I compile 9.2.7 for tools/download-tool.Theoretically, you should have chosen aarch64, but the inject_bl301 and ceemmc tools were not in the source when you downloaded them.
After searching the source, we found that there are only ARM and those without ARM. What architecture platform is the one without ARM targeted at?
Anyway, for TX3 (S905X3), what exactly does Arch choose?arm?Or is it not selected by default?

A post was merged into an existing topic: Inject_bl301 404 Error