In message <firstname.lastname@example.org> 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.
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