PCI: xilinx: Remove unused platform data

[cascardo/linux.git] / drivers / pci / setup-bus.c

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 55641a3..c74059e 100644 (file)
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -695,11 +695,16 @@ static void __pci_setup_bridge(struct pci_bus *bus, unsigned long type)
        pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, bus->bridge_ctl);
 }
 
+void __weak pcibios_setup_bridge(struct pci_bus *bus, unsigned long type)
+{
+}
+
 void pci_setup_bridge(struct pci_bus *bus)
 {
        unsigned long type = IORESOURCE_IO | IORESOURCE_MEM |
                                  IORESOURCE_PREFETCH;
 
+       pcibios_setup_bridge(bus, type);
        __pci_setup_bridge(bus, type);
 }
 
@@ -1423,6 +1428,74 @@ void pci_bus_assign_resources(const struct pci_bus *bus)
 }
 EXPORT_SYMBOL(pci_bus_assign_resources);
 
+static void pci_claim_device_resources(struct pci_dev *dev)
+{
+       int i;
+
+       for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
+               struct resource *r = &dev->resource[i];
+
+               if (!r->flags || r->parent)
+                       continue;
+
+               pci_claim_resource(dev, i);
+       }
+}
+
+static void pci_claim_bridge_resources(struct pci_dev *dev)
+{
+       int i;
+
+       for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
+               struct resource *r = &dev->resource[i];
+
+               if (!r->flags || r->parent)
+                       continue;
+
+               pci_claim_bridge_resource(dev, i);
+       }
+}
+
+static void pci_bus_allocate_dev_resources(struct pci_bus *b)
+{
+       struct pci_dev *dev;
+       struct pci_bus *child;
+
+       list_for_each_entry(dev, &b->devices, bus_list) {
+               pci_claim_device_resources(dev);
+
+               child = dev->subordinate;
+               if (child)
+                       pci_bus_allocate_dev_resources(child);
+       }
+}
+
+static void pci_bus_allocate_resources(struct pci_bus *b)
+{
+       struct pci_bus *child;
+
+       /*
+        * Carry out a depth-first search on the PCI bus
+        * tree to allocate bridge apertures. Read the
+        * programmed bridge bases and recursively claim
+        * the respective bridge resources.
+        */
+       if (b->self) {
+               pci_read_bridge_bases(b);
+               pci_claim_bridge_resources(b->self);
+       }
+
+       list_for_each_entry(child, &b->children, node)
+               pci_bus_allocate_resources(child);
+}
+
+void pci_bus_claim_resources(struct pci_bus *b)
+{
+       pci_bus_allocate_resources(b);
+       pci_bus_allocate_dev_resources(b);
+}
+EXPORT_SYMBOL(pci_bus_claim_resources);
+
 static void __pci_bridge_assign_resources(const struct pci_dev *bridge,
                                          struct list_head *add_head,
                                          struct list_head *fail_head)