In message [ref] you wrote:

       Generally how bootloader/bootflash code detects
the size of RAM on the board? Is it hardcoded some
where in the bootflash code or is it detected using
memory chips ?

One method is to probe addresses (at N, 2*N, 4*N etc. starting with a
resonable value of N like 1 MB) until probing fails. See for  example
common/memsize.c in the U-Boot sources.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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