Merge branch 'master' of git://git.kernel.org/pub/scm/fs/xfs/xfs

[pandora-kernel.git] / arch / powerpc / kernel / pci_32.c

diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 7ad11e5..d473634 100644 (file)
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -20,6 +20,7 @@
 #include <asm/prom.h>
 #include <asm/sections.h>
 #include <asm/pci-bridge.h>
+#include <asm/ppc-pci.h>
 #include <asm/byteorder.h>
 #include <asm/uaccess.h>
 #include <asm/machdep.h>
@@ -43,8 +44,6 @@ static u8* pci_to_OF_bus_map;
  */
 static int pci_assign_all_buses;
 
-LIST_HEAD(hose_list);
-
 static int pci_bus_count;
 
 /* This will remain NULL for now, until isa-bridge.c is made common
@@ -219,16 +218,23 @@ scan_OF_pci_childs(struct device_node *parent, pci_OF_scan_iterator filter, void
 static struct device_node *scan_OF_for_pci_dev(struct device_node *parent,
                                               unsigned int devfn)
 {
-       struct device_node *np;
+       struct device_node *np, *cnp;
        const u32 *reg;
        unsigned int psize;
 
        for_each_child_of_node(parent, np) {
                reg = of_get_property(np, "reg", &psize);
-               if (reg == NULL || psize < 4)
-                       continue;
-               if (((reg[0] >> 8) & 0xff) == devfn)
+                if (reg && psize >= 4 && ((reg[0] >> 8) & 0xff) == devfn)
                        return np;
+
+               /* Note: some OFs create a parent node "multifunc-device" as
+                * a fake root for all functions of a multi-function device,
+                * we go down them as well. */
+                if (!strcmp(np->name, "multifunc-device")) {
+                        cnp = scan_OF_for_pci_dev(np, devfn);
+                        if (cnp)
+                                return cnp;
+                }
        }
        return NULL;
 }
@@ -266,9 +272,6 @@ pci_busdev_to_OF_node(struct pci_bus *bus, int devfn)
 {
        struct device_node *parent, *np;
 
-       if (!have_of)
-               return NULL;
-
        pr_debug("pci_busdev_to_OF_node(%d,0x%x)\n", bus->number, devfn);
        parent = scan_OF_for_pci_bus(bus);
        if (parent == NULL)
@@ -309,8 +312,6 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
        struct pci_controller* hose;
        struct pci_dev* dev = NULL;
        
-       if (!have_of)
-               return -ENODEV;
        /* Make sure it's really a PCI device */
        hose = pci_find_hose_for_OF_device(node);
        if (!hose || !hose->dn)
@@ -431,7 +432,7 @@ static int __init pcibios_init(void)
         * numbers vs. kernel bus numbers since we may have to
         * remap them.
         */
-       if (pci_assign_all_buses && have_of)
+       if (pci_assign_all_buses)
                pcibios_make_OF_bus_map();
 
        /* Call common code to handle resource allocation */
@@ -496,24 +497,6 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn)
        return result;
 }
 
-unsigned long pci_address_to_pio(phys_addr_t address)
-{
-       struct pci_controller *hose, *tmp;
-
-       list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
-               unsigned int size = hose->io_resource.end -
-                       hose->io_resource.start + 1;
-               if (address >= hose->io_base_phys &&
-                   address < (hose->io_base_phys + size)) {
-                       unsigned long base =
-                               (unsigned long)hose->io_base_virt - _IO_BASE;
-                       return base + (address - hose->io_base_phys);
-               }
-       }
-       return (unsigned int)-1;
-}
-EXPORT_SYMBOL(pci_address_to_pio);
-
 /*
  * Null PCI config access functions, for the case when we can't
  * find a hose.