InfiniTime/tools/mcuboot
..
imgtool
assemble.py
flash.sh
gdb-boot.sh
imgtool.nix
imgtool.py
jgdb.sh
jl.sh
mcubin.bt
README
requirements.txt
setup.py

This whole folder comes from MCUBoot source files (commit 9015a5d404c2c688166cab81067be53c860d98f4).