Proposed changes to io.h

[Dan Malek]

Matt Porter wrote:


> ..... If e500 wanted a version they
> can use the SPE option to add some code.

This isn't an issue (yet) for e500.  The only 64-bit external bus is
for the DDR.  The only functions using the quad word are for MTD flash,
and all flash is on the 32-bit local bus.


	-- Dan


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