Re: [U-Boot-Users] What are IBAT and DBAT?

Shawn wrote:

3. Can IBAT and DBAT be modified dynamically? For example, if I want to

access 0x70000000 ~ 0x78000000 temporarily, which is not defined in configuration header file, can I change the configuration of one of IBAT and DBAT pair, e.g. ibat2 and dbat2?

The Broadcom BMW board is based on the MPC8245, and it accesses part of that region of memory. You should use that code as an example.

However, I should note that, in U-Boot 1.0.0, the file "board/bmw/early_init.S" does not contain a GPL header.

-Robert DeLaGarza