Ah! That works --- thanks. No more panics. (I'm a little confused about the `port' range, since ppc doesn't have a separate I/O space like intel --- maybe it's a PCI thing.)
Of course, there are other problems: the modem doesn't work because Mac serial ports are Zilog Z8530-based and the kernel doesn't seem to support having both z8530 and 8250/1655x based ports in the same system.
The wavelan doesn't produce any errors but isn't moving any packets either; I probably just don't have it configured right.
I think it would be handy to have a README.non-i86 in the distribution with reported problems, workarounds, etc. on non-Intel platfdorms. (In particular, setting the memory range, which is obvious in retrospect.) I could write up a brief section on powerbooks.