sparc64: If 'slot-names' property exist, create sysfs PCI slot information.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 592b03d85167231656812bb3e3df6a9dba462285..d7e1cf01dd2844849b36a4c302b70d4fb817d8fc 100644 (file)
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -1094,3 +1094,78 @@ static int __init pcibios_init(void)
        return 0;
 }
 subsys_initcall(pcibios_init);
+
+#ifdef CONFIG_SYSFS
+static void __devinit pci_bus_slot_names(struct device_node *node,
+                                        struct pci_bus *bus)
+{
+       const struct pci_slot_names {
+               u32     slot_mask;
+               char    names[0];
+       } *prop;
+       const char *sp;
+       int len, i;
+       u32 mask;
+
+       prop = of_get_property(node, "slot-names", &len);
+       if (!prop)
+               return;
+
+       mask = prop->slot_mask;
+       sp = prop->names;
+
+       if (ofpci_verbose)
+               printk("PCI: Making slots for [%s] mask[0x%02x]\n",
+                      node->full_name, mask);
+
+       i = 0;
+       while (mask) {
+               struct pci_slot *pci_slot;
+               u32 this_bit = 1 << i;
+
+               if (!(mask & this_bit)) {
+                       i++;
+                       continue;
+               }
+
+               if (ofpci_verbose)
+                       printk("PCI: Making slot [%s]\n", sp);
+
+               pci_slot = pci_create_slot(bus, i, sp, NULL);
+               if (IS_ERR(pci_slot))
+                       printk(KERN_ERR "PCI: pci_create_slot returned %ld\n",
+                              PTR_ERR(pci_slot));
+
+               sp += strlen(sp) + 1;
+               mask &= ~this_bit;
+               i++;
+       }
+}
+
+static int __init of_pci_slot_init(void)
+{
+       struct pci_bus *pbus = NULL;
+
+       while ((pbus = pci_find_next_bus(pbus)) != NULL) {
+               struct device_node *node;
+
+               if (pbus->self) {
+                       struct dev_archdata *sd = pbus->self->sysdata;
+
+                       /* PCI->PCI bridge */
+                       node = sd->prom_node;
+               } else {
+                       struct pci_pbm_info *pbm = pbus->sysdata;
+
+                       /* Host PCI controller */
+                       node = pbm->op->node;
+               }
+
+               pci_bus_slot_names(node, pbus);
+       }
+
+       return 0;
+}
+
+module_init(of_pci_slot_init);
+#endif