Hi all, I'm adding PCI support to the LEON sparc linux port and I have some questions for you. The pci controller is set up to have one 256 MB big window to which accesses generates PCI memory cycles and a 64 KB big window for IO cycles. First I configured the PCIBIOS_MIN_MEM/IO macros to match these windows and called pci_scan_bus() followed by pci_assign_unassigned_resources(). I got this working quite nicely but I realised that the PCI IO resources should be remapped by the kernel and not by the drivers. I'm not sure in which way to achieve this. I tried to replace the resource for pci devices with io from pcibios_fixup_bus somewhat like in the sparc32 port but that seemed to be ignored by the generic pci code. I based my pci layer port on the sparc32 version but have taken bits and pieces from other archs. Many archs seem to set the PCIBIOS_MIN_MEM/IO to 0 and use request_resource to setup iomem_resource and ioport_resource but I don't get that to work properly. Can someone provide any helpful pointers to how this should be done? Regards, Kristoffer Carlsson - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
