Hello,
I use a custumized at91sam9260-ek.
I could connect my board to the PC with Sam-ba and USB cable for uploading files to the NandFlash, Sdram and ...
Also I don't use dataflash on my board. I think I didn't need to it.
So I uploaded my files to the nandflash.

I used the original build root file from "www.at91.com" and angstrom build root from this site for uploading to the nandflash.
I could upload these files to the nand flash (bootstrap, bootloader, kernel and RFS) successfully.
But when I reset my board I have many errors.
If I use original build root, I have this state:
bootstrap : ok
bootloader: ok
kernel: ok
in the RFS, it stopped in port mapping.
If I reset the board, bootstrap,bootloader and kernel are ok, but in RFS a kernel panic error was occured.


But if I use the angstrom build root:
Some times the board will boot up successfully and I could access to the board with serial console and some times it has kernel panic error.


and If I use my customized Root File System, that I make it from a busybox:
again, some times it will be boot up successfully and some times has a kernel panic error.

I don't know the reason of this problem? I don't know that I have a hardware problem or this is a software problem?
I have no idea.
Any body has at91sam9260-ek? If yes inform me to sending my files for uploading in nand flash and test them.
Thank you.

Also I attach board schematic file.