Unable to boot kernel 2.6 from u-boot 1.1.2 in MPC8540

Hi all,

I am currently working on a MPC8540 based custom board to port linux-2.6.x. 
 iam using  kernel-2.6.12 in which platform code  CCSRBAR   is set to 0xff70 0000 which is the
default value for 8540 found from HRM. it hangs at "Uncompressing kernel image...ok".Iam
using u-boot-1.1.2.



Should i edit anything in .config file?
or am i missing something anywhere?

 Could someone help me to solve this issue.

Thanks and Regards
Revathy