In message 1098978366.c74c833cnishant.subs@myrealbox.com you wrote:

I have used the board/mpc8266ads.c, cpu/mpc8266ads.c and other related files as a base. I plan to modify them and compile u-boot for my custom board.

Can I use strataFlash.c in ppmc8260? What changes are necessary to make it work with mpc8266 code base?

No, you cannot, because there is no file with this name in the whole U-Boot tree.

Or do you mean board/ppmc8260/strataflash.c? That's different ('f' vs. 'F').

You can use that as a starting point.

What are the other changes necessary to initialize 2 flashes?

Obviously you need a driver that supports both types of flash chips, depending on which flash bank you are orking with.

Another doubt: Flash initialization lib_ppc/board.c/board_init_r()/flash_init() is done pretty late, after u-boot has relocated to RAM.

What is the objective of the initialization at such a late stage?

You cannot do it earlier, because then you are running code out of flash memory. It is impossible on most flash chips to read data and use any flash commands at the same time.

Best regards,

Wolfgang Denk