Hi Andy!
Does the EC firmware of your system reside in the IFD EC partition or in the IFD BIOS partition? The former doesn't seem to be the case, since ifdtool complains about nor IFD EC region being present in the IFD. For the latter have a look at 51nb/x210 and mb/amd/mandolin where an FMAP EC section is defined in the board's fmd file and the EC firmware is put into that section via cbfstool; see the Makefile.inc of the nb51 EC support or the Mandolin board for that.
Regards Felix