Ben, FYI,

The latest 745x user manual is here:
 http://e-www.motorola.com/files/32bit/doc/ref_manual/MPC7450UM.pdf

Here are some relevant sections:
- 3.4.1.1 (p. 3-32) Enabling and Disabling the Data Cache
- 3.4.1.3 (p. 3-33) Enabling and Disabling the Instruction Cache
- 3.6.3.1.5 (p. 3-55) Flushing of L1, L2, and L3

I haven't much time to play with that at the moment, but you are
welcome to fix the code :)

Ben.


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