Dear "Ulrich Gerster",
In message 4A5C8FD30200004D00014C9B@hochblauen.ba-loerrach.de you wrote:
Another strange thing is that I can't read from nand flash but I can =
write.
That's indeed strange. How do you know you can write then when you cannot read the data back for verification?
Your're right. I only use NAND Flash. At the moment I'm starting u-boot out of RAM using RedBoot. I'm assuming that U-Boot is writing something to the NAND Flash because if I enter a commad in U-Boot like "saveenv" or "nand write" my RedBoot is not working anymore after that. I have to reprogramm RedBoot in the Flash before I can boot it again.
So you just know that it's corrupting he previous content - for example, erase might be working. But you have no indication of a successful write operation, so you better do not assume that write was working.
Best regards,
Wolfgang Denk