RE: [ECOS] ARM port architecture questions

["Patrick Doyle" <wpd at delcomsys dot com>]

>
> Getting the MMU going should take you less time than it took to write
> this explanation :-)  Just look at (i.e. copy) the setup code from a
> working platform, such as the iPAQ or one of the ARM9 platforms.  Fill
> in the specifics in the hal_mmu_init() function and you're done.
>
I'll drop this now, since the consensus seems to be "use the MMU", but,
being a newcomer to the ARM architecture, how do I know that the MMU on one
part will be identical to that on another part.  The answer is "I (wpd)
don't know this."  So, I'll go an look at the iPAQ (since I want to learn
about that anyway) or one of the ARM9 platforms, find a data sheet that
documents the MMU on that platform, parse through the MMU setup, wonder
about why you chose to do that that way, wonder if it makes sense for me to
choose to do it the same way or not, find out that my MMU is slightly
different, etc...

If I were using a StrongARM, I would start with the iPAQ and not bother with
these questions.

But thanks for the pointers, I do appreciate them.

--wpd


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