| In the same vein, I finally got the USB controller in this same machine
 | working.  It needed the same IRQ fixup as the CBB (it only seems to like
 | IRQ 10), as well as a fixup to enable IO-memory in the PCI command register.
 | Neither of these is set up by my BIOS.

ftp://f77.nop.or.jp/users/uch/PCI/PCIBIOS-NetBSD-1.4L-991017.patch.gz 
This patch will help. (and also re-enumerate bus-order)
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UCHIYAMA Yasushi
uch@nop.or.jp