Does the Raspberry Pi 5 Support UEFI?

Question

Does the Raspberry Pi 5 have UEFI support out of the box that adheres to the Arm system-ready standard?

cstanton · Accepted Answer

The current bootloader does not support UEFI as it is too much data to fit into the EEPROM. The size of the EEPROM is 16mbit (2mbyte), if there is a UEFI implementation that could fit within this size limitation then it may be possible to implement a U-Boot UEFI implementation with ACPI tables, but this will not be default or standard and has yet to be officially investigated or implemented. 
 There is a similar attempt for the Raspberry Pi 4, though size is still a factor .