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uBoot NAND saveenv problem



Hi All,

I need need some help setting up an integra C6A8168 EVM board. The main problem I'm having is that any attempts to save environment variables (using saveenv) at the uBoot prompt hangs the terminal. 

For example, I might do something like this:

TI8168_EVM# setenv serverip 1.2.3.4

TI8168_EVM# saveenv

Saving Environment to NAND...

Erasing Nand...

and that's it. It then does nothing. After some googling I'm thinking there are a couple of possibilities:

1). My EVM doesn't have NAND. I have no idea how to check this. Can someone suggest a way to tell?. A simply statement in the instructions on what it stands for might be useful!.

2). My dip switch setup is not correct (ie. no write permissions to write to NAND). I can find no sensible instructions on setting the dip switches on the EVM (labelled BOOT/CFG).

Any other ideas?. 

Ta in advance,

Dave