From: Benjamin Herrenschmidt <b...@kernel.crashing.org> Date: Wed, 20 May 2009 13:01:30 +1000
> For example, some of the OF parsing bits may fail to convert memory > addresses to IO addresses if the PCI host bridges have not been > discovered yet, potentially causing issues with matching of resources > between the early serial stuff and the generic serial driver (if you > use an IO driven UART, the PCI 8250 driver may not properly figure out > that what it's finding in its IO BARs is actually the same port as > what it gets from the platform code as the later will end up with > memory addresses rather than IO ones). That's one example. FWIW, I never run into this issue on sparc64 exactly because I fully resolve all resources when I populate the OF device tree in the kernel. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
