Hi,
Dflash is not programmed by Pemicro debugger by default in case of CW2.10, so it is necessary to do some changes. Attached you will find dlfah.zip. Copy cfg file and bat file to this location:
c:\Program Files\Freescale\CW for MPC55xx and MPC56xx 2.10\pemicro\
Then open your project, press alt+F7, select Build Extras and change the setting as per attached picture.
Then change the paths in cfg and bat file, so it fits your project. Then it should program also dflash.
Notice that I created it for MPC5604P, so changed also the programming algorithm (PCP file) in configuration file (*.cfg) accordingly.
Regards,
Lukas