They are a bit special because registers are in reverse little
endian format,
must be written in 32-bit chunks, and (all things point to) they
have hardware bugs.
Well.. first what is "reverse little endian" ? :-) Big endian ?
Nah. Little-endian, with a 32-bit bus swizzle. This is not the
same thing as big-endian when not all your registers are 32 bits.
Also, you can only write 32 bits, they don't use byte enables.
As for HW bugs, well, as long as we know them we can define a quirk
bit
and add the necessary workarounds to the driver :-)
The question is if the device is close enough to OHCI to declare it
as that in the device tree. I would say "yes".
Segher
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