Hi Deepak,
In the quest of finding the code for relocation i have reached the start.s file present in u-boot-1.1.6\cpu\mpc83xx\ folder.
This is old code you're looking at. Best would be to look at current code although this doesn't help here.
Even its in assembly language (i dont know assembly language beyond movlw) i tried to understand that using the descriptions of the commands given in this site: http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.ai... but im not able to proceed much. Is there any better way to understand this.
The algorithm is implemented in assembler (at the relocate_code label), so understanding assembler a little bit will be a preliminary to understanding unless you have access to a device which we in german call a "Nürnberger Trichter" [its a mythical mechanical learning device] ;)
Cheers Detlev