SST 25VF064C chip is not supported - it needs some additional operations before erase...
-rwxr-xr-x 8630 Makefile
-rw-r--r-- 24859 README.md
-rw-r--r-- 29043 READMEPL.md
drwxr-xr-x - bin
drwxr-xr-x - host_util
drwxr-xr-x - original_u-boot_images
drwxr-xr-x - u-boot