=> fatload usb 0:1 0xa0000000 /efi/boot/bootaa64.efi
reading /efi/boot/bootaa64.efi
81456 bytes read in 75 ms (1 MiB/s)
=> bootefi 0xa0000000
## Starting EFI application at 0xa0000000 ...
WARNING: Invalid device tree, expect boot to fail
Scanning disks on usb...
Adding logical partition
Adding logical partition
Scanning disks on mmc...
MMC Device 1 not found
MMC Device 2 not found
MMC Device 3 not found
Found 7 disks