In message E1ABnTR-0006lu-DD@sc8-sf-mx1.sourceforge.net you wrote:

I am working on mpc8245 based board. I have compiled the ppcboot with 64MB ram and its working fine and linux is ported successfully. But when I have configured the RAM to 128MB in ppcboot, I am getting the boot prompt and while loading linux its crashing . What can be the reason?

I already answered this question on the linuxppc-embedded.

There is nothing to add.

Wolfgang Denk