Yes !! Downloaded 6.6 and there is such dialog ! Now code is analyzed.
Thank you !

Can't find where to choose mpc5xx. File is loaded as ppc (big endian), but nothing was analyzed
http://prntscr.com/99voqu

Hi ! I've found here thread about mpc555 reverse engineering. My car is equipped with mpc555 & am29bl802 like delco. When I load flash dump into ida, it won't recognize and show me ppc code :( Probably I need to set rom start address or maybe something else .... PS. Firmware dump is in attachment.