Hi Stefan,
I have to admit, that PCI I/O can't have worked until now on
Yosemite/Yellowstone. I just found a bug in
arch/ppc/platforms/4xx/yosemite.h:
-#define YOSEMITE_PCI_IO_BASE 0x00000000e0000000ULL
+#define YOSEMITE_PCI_IO_BASE 0x00000000e8000000ULL
Please give it a try and let me know if the problem is fixed.
Yes, that was it! Its all working now.
Thanks very much!
Dave