In message 1100610399.8f965bbcnishant.subs@myrealbox.com you wrote:
The Problem:
...
The last message printed is: "New Stack Pointer is: 0x1F3 6F48"
Yet another case of SDRAM initialization problems.
That is where I am stuck. Where does the execution control branch to? How do I figure out where the code is going? I know it does not reach in_ram because the first statements there is my code to glow the LEDs.
[Please use shorter lines. Maximum is some 70 characters or so.]
How do I debug u-boot? Should I use CodeWarrior or gdb? I have never used either of them before.
RTFM: see http://www.denx.de/twiki/bin/view/DULG/DebuggingUBoot
I don;t know if CW allows you to reload the symbol table to a relocation address. GDB does. All available documentation for U-Boot assumes you use GDB.
If I have to use CodeWarrior, how do I go about it?
Maybe there is soem documentation that comes with CW?
If I have to use gdb, what commands do I give? I have tried both 'gdb' and 'ppc_82xx-gdb'.
RTFM.
(gdb) target remote /dev/lp0 gives errors saying set_tty_state failed: Invalid argument
I don't know if your version of GDB supports the WireTAP debugger... There should be some documentation with the WireTAP debugger that explains how to use it?
Observations / attempts: u-boot 1.1.1 was meant for EP8260 rev. 1.1 (64Mb RAM, 16 Mb Flash)
I made the changes necessary for rev. 1.3 in board/ep8260/ep8260.h and include/configs/ep8260.h
Obviously you broke the SDRAM init sequence.
Best regards,
Wolfgang Denk