On Thursday 27 February 2014 14:38:32 Arnd Bergmann wrote:

quoted

+     pr_debug("Parsing ranges property...\n");
+     for_each_of_pci_range(&parser, &range) {
+             /* Read next ranges element */
+             pr_debug("pci_space: 0x%08x pci_addr:0x%016llx ",
+                             range.pci_space, range.pci_addr);
+             pr_debug("cpu_addr:0x%016llx size:0x%016llx\n",
+                                     range.cpu_addr, range.size);
+
+             /*
+              * If we failed translation or got a zero-sized region
+              * then skip this range
+              */
+             if (range.cpu_addr == OF_BAD_ADDR || range.size == 0)
+                     continue;
+
+             res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+             if (!res) {
+                     err = -ENOMEM;
+                     goto bridge_ranges_nomem;
+             }
+
+             of_pci_range_to_resource(&range, dev, res);
+
+             if (resource_type(res) == IORESOURCE_IO)
+                     *io_base = range.cpu_addr;
+
+             pci_add_resource_offset(resources, res,
+                             res->start - range.pci_addr);
+     }

This is not the correct resource for I/O space at all. Please talk
to Will, I've been over this with him in detail and he probably
understands it now. I assume you are both working in the same
building.

Sorry, I initially missed part of your changes in patch 1.
I think it's actually correct now.

	Arnd