[U-Boot] Confusion when starting storage subsystems

[Alexander Holler]

Hello,

It would make me wonder if nobody else noticed it, but having to use

sata init
usb start
mmc rescan

to initialize storage subsystems isn't very convenient (or orthogonal in 
a more knowledgable looking speak). ;)

I don't know the reasons, but I remember that the mmc command to init 
the subsystem already changed at least once. So there must have been 
already some thoughts or discussions about that topic.

Regards,

Alexander Holler