On 04/18/2012 05:59 PM, Michael Schmitz wrote:
Greg,
Or do you want musb_io.h to check for
"!(defined(CONFIG_M68K)&& defined(CONFIG_MMU))" instead?
No, I would rather see just the defined(CONFIG_M68K), and no check for
CONFIG_MMU. I am pretty sure there is some similarity between the way
the Atari does ISA bus interfacing to what some of the ColdFire boards
do.
I sure hope you are wrong :-) But I think I saw some non-MMU Atari use
attempts mentioned on the list, and the ROM port ISA adapter could well
be used on non-MMU Ataris (though I'm not sure what address the ROM port
would be mapped at on those - I'm sure Andreas will know the details
there).
I wasn't referring to the ROM port exactly as it is on Atari playtforms.
But some ColdFire based boards I have seen do ISA busses with some
pretty funky wiring of addresses and data lines to be able to do 8bit
accesses on even and odd boundaries, but also allow 16bit accesses.
Regards
Greg
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Greg Ungerer -- Principal Engineer EMAIL: gerg@xxxxxxxxxxxx
SnapGear Group, McAfee PHONE: +61 7 3435 2888
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