[U-Boot-Users] Reading mediacard compressed files

[Junior]

Hi All,
I have a media card that has one fat partition with a testfile.gzip (unrelated to the kernel).
I would like to read this file and uncompress it to SD memory.
Can this be done and if so, how do I achieve this?
I've enabled FAT support but fatinfo requires "dev[:part]" and I'm not sure what to
specify as my device and partition.

Thanks,
--Jr.