ppc405ep emac driver loading problem

[M B]

Hi,
I'm porting vanilla 2.6.25-rc8 (arch=powerpc) to a new board. UART is
already working in the kernel and Uboot with UART and ethernet is also
working.
But I can't get the emac driver (ibm_newemac) working under Linux.
On boot emac_init get's called and exits normally, but no probe or
open will get called and no network devices (except lo) are known to
the kernel.

Do I have to do something more, than adding the mals and emacs to the
device tree? I haven't seen any 40x or 44x board in the platforms
folder doing something special for the emac.

Any hints?

Regards

Markus