The POST ethernet test needed to be changed to dynamically determine
the count of ethernet devices. This code is cloned from the 4xx
ethernet driver.
Signed-off-by: Stefan Roese <sr@denx.de>
When CFG_POST_ETHER_EXT_LOOPBACK is defined, the ethernet POST
is not done using an internal loopback connection, but by assuming
that an external loopback connector is plugged into the board.
Signed-off-by: Stefan Roese <sr@denx.de>