When trying to port u-boot to a MPC8245 card, I'm not sure what IBAT
and
DBAT register work for. For example, sl8245.h defines 4 regions of
IBAT:
If you have to ask such a question this is an indication that you don't have the qualification to port U-Boot. When dealing with software on such a low level as the boot loader you need a thorough understanding of the hardware and it's internal workings. Without this you are lost.
:(. You didn't answer the questions though. I'm learning from practice. I don't recall I touched any IBAT/DBAT configuration when I ported ppcboot to a MPC855 board. So configuring them seems new to me.
Thank other guys here for giving me hints and references.
-Shawn.
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