[U-Boot] Non-experimental U-Boot compilation

[Xu, Hong]

Hi,

> Dear all,
>      I am using the AT91SAM9G20EK kit and want to port Linux on this.

Actually Atmel has already done this, see http://www.linux4sam.org

> the AT91SAM9260ek configuration as it seems the closest. The problem is after 
> building the U-boot with the sources for this board, generating the .bin, 
> loading and a power on reset (POR), there isn't a command prompt exposed 
> (u-boot>). After POR, 1 1 2 1 1 2 continuosly prints on the hyperterminal. I 
> read from AT91.com that this is the expected behavior for the demo version.

Yes, this is the expected behaviour for the demo package. When you see this, it means you do not boot from the media where you burn your U-Boot into.

> What  is rge procedure to get the prompt ? Are there any separate configuration 
> settings?

AT91SAM9G20EK are well supported by both mainline code and Atmel's current binary. ( u-boot 1.3.4, a little bit old)
For detailed steps to run U-Boot/Linux on your board, still, goto http://www.linux4sam.org

BR,
Eric