Dear Sureshkumar Nagarathinam,
In message 839118.2412.qm@web112320.mail.gq1.yahoo.com you wrote:
Since the board has only 8MB of flash, I have modified the the TEXT_BASE to 0xFFF80000(as against 0xFE000000). I am able to access the DDR2 SDRAM(whole 128MB) , I tested it by writing & reading the patterns 0xaaaaaaaa & 0x555555555, So I assumed the D DR2 SDRAM timing are proper.
This is absolutely NO guarantee that the RAM is working correctly at all. You did not try any burst mode accesses. See the FAQ: http://www.denx.de/wiki/view/DULG/UBootCrashAfterRelocation
I would like to know the following
- What does the 'GOT(__bss_start) do?
It's the entry of __bss_start in the GOT (Global Offset Table). But you don't need to know this. It is unrelated to your problem.
- Do I have to change the linker script since I have changed the TEXT_BASE?
Are you sure you understood exactly what you changed, and why?
- Is there any other cause for hanging?
RAM not correctly initialized.
Best regards,
Wolfgang Denk