Kernel does not support eSata
The supplied kernel with marvell image 1.0 does not support the eSata plug.
Replacing the default kernel with 18.104.22.168 from http://sheeva.with-linux.com/sheeva/2.6.35/22.214.171.124/ provides full support for the eSata sheevaplug.
Solution: The kernel needs recompiling or upgrading to support the following config options:
Note that there are a number of other CONFIG_MACH settings which would probably support other variants of the plug.
Also available in: Atom