1 files changed, 12 insertions, 37 deletions

diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 60dec2401c26..45b8109951fe 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -188,39 +188,19 @@ int is_python(struct device_node *dev)
         return 0;
 }
 
-static int get_phb_reg_prop(struct device_node *dev,
-                            unsigned int addr_size_words,
-                            struct reg_property64 *reg)
+static void python_countermeasures(struct device_node *dev)
 {
-        unsigned int *ui_ptr = NULL, len;
-
-        /* Found a PHB, now figure out where his registers are mapped. */
-        ui_ptr = (unsigned int *)get_property(dev, "reg", &len);
-        if (ui_ptr == NULL)
-                return 1;
-
-        if (addr_size_words == 1) {
-                reg->address = ((struct reg_property32 *)ui_ptr)->address;
-                reg->size    = ((struct reg_property32 *)ui_ptr)->size;
-        } else {
-                *reg = *((struct reg_property64 *)ui_ptr);
-        }
-
-        return 0;
-}
-
-static void python_countermeasures(struct device_node *dev,
-                                   unsigned int addr_size_words)
-{
-        struct reg_property64 reg_struct;
+        struct resource registers;
         void __iomem *chip_regs;
         volatile u32 val;
 
-        if (get_phb_reg_prop(dev, addr_size_words, &reg_struct))
+        if (of_address_to_resource(dev, 0, &registers)) {
+                printk(KERN_ERR "Can't get address for Python workarounds !\n");
                 return;
+        }
 
         /* Python's register file is 1 MB in size. */
-        chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000);
+        chip_regs = ioremap(registers.start & ~(0xfffffUL), 0x100000);
 
         /*
          * Firmware doesn't always clear this bit which is critical
@@ -301,11 +281,10 @@ static int phb_set_bus_ranges(struct device_node *dev,
 }
 
 static int __devinit setup_phb(struct device_node *dev,
-                               struct pci_controller *phb,
-                               unsigned int addr_size_words)
+                               struct pci_controller *phb)
 {
         if (is_python(dev))
-                python_countermeasures(dev, addr_size_words);
+                python_countermeasures(dev);
 
         if (phb_set_bus_ranges(dev, phb))
                 return 1;
@@ -320,8 +299,8 @@ unsigned long __init find_and_init_phbs(void)
 {
         struct device_node *node;
         struct pci_controller *phb;
-        unsigned int root_size_cells = 0;
         unsigned int index;
+        unsigned int root_size_cells = 0;
         unsigned int *opprop = NULL;
         struct device_node *root = of_find_node_by_path("/");
 
@@ -343,10 +322,11 @@ unsigned long __init find_and_init_phbs(void)
                 phb = pcibios_alloc_controller(node);
                 if (!phb)
                         continue;
-                setup_phb(node, phb, root_size_cells);
+                setup_phb(node, phb);
                 pci_process_bridge_OF_ranges(phb, node, 0);
                 pci_setup_phb_io(phb, index == 0);
 #ifdef CONFIG_PPC_PSERIES
+                /* XXX This code need serious fixing ... --BenH */
                 if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) {
                         int addr = root_size_cells * (index + 2) - 1;
                         mpic_assign_isu(pSeries_mpic, index, opprop[addr]);
@@ -381,22 +361,17 @@ unsigned long __init find_and_init_phbs(void)
 
 struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
 {
-        struct device_node *root = of_find_node_by_path("/");
-        unsigned int root_size_cells = 0;
         struct pci_controller *phb;
         int primary;
 
-        root_size_cells = prom_n_size_cells(root);
-
         primary = list_empty(&hose_list);
         phb = pcibios_alloc_controller(dn);
         if (!phb)
                 return NULL;
-        setup_phb(dn, phb, root_size_cells);
+        setup_phb(dn, phb);
         pci_process_bridge_OF_ranges(phb, dn, primary);
 
         pci_setup_phb_io_dynamic(phb, primary);
-        of_node_put(root);
 
         pci_devs_phb_init_dynamic(phb);
         scan_phb(phb);