quoted

This may not be the correct way to support the CF slot on Versatile
Express - it depends whether the CF slot on VE supports just CF
memory cards or whether it can take any CF card.

If the latter, then what may be inserted could be a CF network card,
and that means it's probably wrong to tell the kernel that what's
there is a PATA interface.

Interesting point.  I don't know whether we've tried plugging anything
else in...

Pawel, can you comment?

VE officially supports CF memory cards only (Arnd already referenced the
spec). So in this case CF == PATA.

Cheers!

Paweł