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dynamic memory size


Hi,

I have a perhaps basic question on redboot.

Is redboot able to probe the actual physical memory on board and pass
it on linux command line ?
I could only see the #define which fix'es the installed memory.

Say we have 2 versions of board, with different h/w memory configurations, 
how can we probe and pass to linux kernel the correct mem=XXX size.

Please point to me the reference code / exisiting code / any patch
which has such memory detection thing.

( I know it can be done, as I have done it once on netbsd plattform
from user plane memory chips register reading and all )

Cheers,
Alfred

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