Shouldn't it be enough to have a common compatible value in each
of these boards, e.g. "amcc,generic-ppc44x" and then just ignore the
specific type unless you need to do something special?
This is bad for the same reason that "amcc,44x-<blah>" compatible
values
are bad in device nodes. The definition of '*-44x-*' changes over
time as
new parts are added. Compatible values should always reflect an exact
part number.
I agree in general, but I also think that all 44x boards should be
regarded as the same machine time, in the same way that all powermacs
are detected as compatible with "Power Macintosh" or "MacRISC", or
how all sorts of serial ports claim compatibility with i8250.
And they can do that because a binding for those "compatible" names
exists, that describes exactly what it means for a device to be "i8250"
or "MacRISC" (well, in that last case, maybe such a binding exists, or
maybe it doesn't, but we don't know about it anyway, sigh).
Segher
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