On Aug 30, 2006, at 1:25 AM, Reddy Suneel-ASR125 wrote:

Hi

Can anyone know how to turn off MMU in MPC8540?

You can not turn the MMU off on the MPC8540 or any e500 based  
product.  You can emulate a 1:1 mapping if you so desire by  
preloading TLBs.

- kumar