ARM Trusted firmware is a reference implementation of secure world software for
ARMv8-A including Exception Level 3 (EL3) software. It provides a number of
standard ARM interfaces like Power State Coordination (PSCI), Trusted Board
Boot Requirements (TBBR) and Secure Monitor.
Note: the contents of this package are generally just consumed by bootloaders
such as u-boot. As such the binaries aren't of general interest to users.