In message aa56107905050919099b9b06b@mail.gmail.com you wrote:
We are planning to use uboot on our system and wanted to know if u-boot can probe the memory installed on the system automatically and pass the correct mem size to linux kernel ?
Yes, it can. Actually this is the default behaviour.
Ummm... why didn't you have a look at the mailing list arcive instead of posting?
Way I could understand it was that the mem size and offset had to be compile time #define'ed ..
Wrong.
what if we want same image to work on 2 different memory configuration hardware ?
Just do it. It is up to you how you implement support for your board.
how does the memory probe work on PC etc ? bootloaders use BIOS Calls ?
BIOS? That's a different world. Wrong list.
how can I do this on my ixdp425 plattform ?
Have a look at common/memsize.c and how it's used on other boards.
Best regards,
Wolfgang Denk