Dear Parimala Baggiri,
please stop top-posting / full-quoting. Thanks.
In message CAD6P=4j2eGh16C6hB7Z8ahc8h6iPd+Na02Sn1NJEnbK+v+ntmA@mail.gmail.com you wrote:
Thank you for the reply. Could you please clarify me the following things about u-boot? To add more system RAM where should I change and whether it is SDRAM or SRAM?
I wrote: system RAM. On most systems this is SDRAM (or rather DDR these days).
I am using panda es board(omap4460), whose SDRAM starts at 0x80000000, after the boot, u-boot relocates to 0x80E80000, how can we know from where stack starts in SDRAM, to allocate the space for my standalone application? Is the Stacksize common for u-boot and standalone application?
James Chargin already explained most of the details - note that his explanation is pretty much genral; see also section "Memory Management" in the U-Boot README file.
Your SA application uses both the malloc arena and the stack that has been set up by U-Boot, so stack size is really only limited by the size of the System RAM.
Best regards,
Wolfgang Denk