diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index d7de3ec0bf83..5a5b24685081 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -187,7 +187,7 @@ static DEFINE_SPINLOCK(hose_spinlock);
 /*
  * pci_controller(phb) initialized common variables.
  */
-void __devinit pci_setup_pci_controller(struct pci_controller *hose)
+static void __devinit pci_setup_pci_controller(struct pci_controller *hose)
 {
 	memset(hose, 0, sizeof(struct pci_controller));
 
@@ -197,6 +197,65 @@ void __devinit pci_setup_pci_controller(struct pci_controller *hose)
 	spin_unlock(&hose_spinlock);
 }
 
+static void add_linux_pci_domain(struct device_node *dev,
+				 struct pci_controller *phb)
+{
+	struct property *of_prop;
+	unsigned int size;
+
+	of_prop = (struct property *)
+		get_property(dev, "linux,pci-domain", &size);
+	if (of_prop != NULL)
+		return;
+	WARN_ON(of_prop && size < sizeof(int));
+	if (of_prop && size < sizeof(int))
+		of_prop = NULL;
+	size = sizeof(struct property) + sizeof(int);
+	if (of_prop == NULL) {
+		if (mem_init_done)
+			of_prop = kmalloc(size, GFP_KERNEL);
+		else
+			of_prop = alloc_bootmem(size);
+	}
+	memset(of_prop, 0, sizeof(struct property));
+	of_prop->name = "linux,pci-domain";
+	of_prop->length = sizeof(int);
+	of_prop->value = (unsigned char *)&of_prop[1];
+	*((int *)of_prop->value) = phb->global_number;
+	prom_add_property(dev, of_prop);
+}
+
+struct pci_controller * pcibios_alloc_controller(struct device_node *dev)
+{
+	struct pci_controller *phb;
+
+	if (mem_init_done)
+		phb = kmalloc(sizeof(struct pci_controller), GFP_KERNEL);
+	else
+		phb = alloc_bootmem(sizeof (struct pci_controller));
+	if (phb == NULL)
+		return NULL;
+	pci_setup_pci_controller(phb);
+	phb->arch_data = dev;
+	phb->is_dynamic = mem_init_done;
+	if (dev)
+		add_linux_pci_domain(dev, phb);
+	return phb;
+}
+
+void pcibios_free_controller(struct pci_controller *phb)
+{
+	if (phb->arch_data) {
+		struct device_node *np = phb->arch_data;
+		int *domain = (int *)get_property(np,
+						  "linux,pci-domain", NULL);
+		if (domain)
+			*domain = -1;
+	}
+	if (phb->is_dynamic)
+		kfree(phb);
+}
+
 static void __init pcibios_claim_one_bus(struct pci_bus *b)
 {
 	struct pci_dev *dev;
@@ -907,9 +966,10 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 	 *			(size depending on dev->n_addr_cells)
 	 *   cells 4+5 or 5+6:	the size of the range
 	 */
-	rlen = 0;
-	hose->io_base_phys = 0;
 	ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
+	if (ranges == NULL)
+		return;
+	hose->io_base_phys = 0;
 	while ((rlen -= np * sizeof(unsigned int)) >= 0) {
 		res = NULL;
 		pci_space = ranges[0];
@@ -1107,6 +1167,8 @@ int remap_bus_range(struct pci_bus *bus)
 	
 	if (get_bus_io_range(bus, &start_phys, &start_virt, &size))
 		return 1;
+	if (start_phys == 0)
+		return 1;
 	printk("mapping IO %lx -> %lx, size: %lx\n", start_phys, start_virt, size);
 	if (__ioremap_explicit(start_phys, start_virt, size,
 			       _PAGE_NO_CACHE | _PAGE_GUARDED))
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 0e5a8e116653..60dec2401c26 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -304,75 +304,18 @@ static int __devinit setup_phb(struct device_node *dev,
 			       struct pci_controller *phb,
 			       unsigned int addr_size_words)
 {
-	pci_setup_pci_controller(phb);
-
 	if (is_python(dev))
 		python_countermeasures(dev, addr_size_words);
 
 	if (phb_set_bus_ranges(dev, phb))
 		return 1;
 
-	phb->arch_data = dev;
 	phb->ops = &rtas_pci_ops;
 	phb->buid = get_phb_buid(dev);
 
 	return 0;
 }
 
-static void __devinit add_linux_pci_domain(struct device_node *dev,
-					   struct pci_controller *phb,
-					   struct property *of_prop)
-{
-	memset(of_prop, 0, sizeof(struct property));
-	of_prop->name = "linux,pci-domain";
-	of_prop->length = sizeof(phb->global_number);
-	of_prop->value = (unsigned char *)&of_prop[1];
-	memcpy(of_prop->value, &phb->global_number, sizeof(phb->global_number));
-	prom_add_property(dev, of_prop);
-}
-
-static struct pci_controller * __init alloc_phb(struct device_node *dev,
-						unsigned int addr_size_words)
-{
-	struct pci_controller *phb;
-	struct property *of_prop;
-
-	phb = alloc_bootmem(sizeof(struct pci_controller));
-	if (phb == NULL)
-		return NULL;
-
-	of_prop = alloc_bootmem(sizeof(struct property) +
-				sizeof(phb->global_number));
-	if (!of_prop)
-		return NULL;
-
-	if (setup_phb(dev, phb, addr_size_words))
-		return NULL;
-
-	add_linux_pci_domain(dev, phb, of_prop);
-
-	return phb;
-}
-
-static struct pci_controller * __devinit alloc_phb_dynamic(struct device_node *dev, unsigned int addr_size_words)
-{
-	struct pci_controller *phb;
-
-	phb = (struct pci_controller *)kmalloc(sizeof(struct pci_controller),
-					       GFP_KERNEL);
-	if (phb == NULL)
-		return NULL;
-
-	if (setup_phb(dev, phb, addr_size_words))
-		return NULL;
-
-	phb->is_dynamic = 1;
-
-	/* TODO: linux,pci-domain? */
-
- 	return phb;
-}
-
 unsigned long __init find_and_init_phbs(void)
 {
 	struct device_node *node;
@@ -397,10 +340,10 @@ unsigned long __init find_and_init_phbs(void)
 		if (node->type == NULL || strcmp(node->type, "pci") != 0)
 			continue;
 
-		phb = alloc_phb(node, root_size_cells);
+		phb = pcibios_alloc_controller(node);
 		if (!phb)
 			continue;
-
+		setup_phb(node, phb, root_size_cells);
 		pci_process_bridge_OF_ranges(phb, node, 0);
 		pci_setup_phb_io(phb, index == 0);
 #ifdef CONFIG_PPC_PSERIES
@@ -446,10 +389,10 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
 	root_size_cells = prom_n_size_cells(root);
 
 	primary = list_empty(&hose_list);
-	phb = alloc_phb_dynamic(dn, root_size_cells);
+	phb = pcibios_alloc_controller(dn);
 	if (!phb)
 		return NULL;
-
+	setup_phb(dn, phb, root_size_cells);
 	pci_process_bridge_OF_ranges(phb, dn, primary);
 
 	pci_setup_phb_io_dynamic(phb, primary);
@@ -505,8 +448,7 @@ int pcibios_remove_root_bus(struct pci_controller *phb)
 	}
 
 	list_del(&phb->list_node);
-	if (phb->is_dynamic)
-		kfree(phb);
+	pcibios_free_controller(phb);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 4b75131773a6..dafc518fbb83 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -244,10 +244,9 @@ unsigned long __init find_and_init_phbs(void)
 		if (ret == 0) {
 			printk("bus %d appears to exist\n", bus);
 
-			phb = (struct pci_controller *)kmalloc(sizeof(struct pci_controller), GFP_KERNEL);
+			phb = pcibios_alloc_controller(NULL);
 			if (phb == NULL)
 				return -ENOMEM;
-			pci_setup_pci_controller(phb);
 
 			phb->pci_mem_offset = phb->local_number = bus;
 			phb->first_busno = bus;
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 895aeb3f75d0..f40451da037c 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -326,26 +326,12 @@ static int __init add_bridge(struct device_node *dev)
 		dev->full_name);
 	}
 
-	hose = alloc_bootmem(sizeof(struct pci_controller));
+	hose = pcibios_alloc_controller(dev);
 	if (hose == NULL)
 		return -ENOMEM;
-	pci_setup_pci_controller(hose);
-
-	hose->arch_data = dev;
 	hose->first_busno = bus_range ? bus_range[0] : 0;
 	hose->last_busno = bus_range ? bus_range[1] : 0xff;
 
-	of_prop = alloc_bootmem(sizeof(struct property) +
-				sizeof(hose->global_number));
-	if (of_prop) {
-		memset(of_prop, 0, sizeof(struct property));
-		of_prop->name = "linux,pci-domain";
-		of_prop->length = sizeof(hose->global_number);
-		of_prop->value = (unsigned char *)&of_prop[1];
-		memcpy(of_prop->value, &hose->global_number, sizeof(hose->global_number));
-		prom_add_property(dev, of_prop);
-	}
-
 	disp_name = NULL;
 	if (device_is_compatible(dev, "u3-agp")) {
 		setup_u3_agp(hose);
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index dfd41b9781a9..443be526cde7 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -640,15 +640,16 @@ static void __init setup_u3_ht(struct pci_controller* hose)
 	 * the reg address cell, we shall fix that by killing struct
 	 * reg_property and using some accessor functions instead
 	 */
-	hose->cfg_data = (volatile unsigned char *)ioremap(0xf2000000, 0x02000000);
+	hose->cfg_data = (volatile unsigned char *)ioremap(0xf2000000,
+							   0x02000000);
 
 	/*
-	 * /ht node doesn't expose a "ranges" property, so we "remove" regions that
-	 * have been allocated to AGP. So far, this version of the code doesn't assign
-	 * any of the 0xfxxxxxxx "fine" memory regions to /ht.
-	 * We need to fix that sooner or later by either parsing all child "ranges"
-	 * properties or figuring out the U3 address space decoding logic and
-	 * then read its configuration register (if any).
+	 * /ht node doesn't expose a "ranges" property, so we "remove"
+	 * regions that have been allocated to AGP. So far, this version of
+	 * the code doesn't assign any of the 0xfxxxxxxx "fine" memory regions
+	 * to /ht. We need to fix that sooner or later by either parsing all
+	 * child "ranges" properties or figuring out the U3 address space
+	 * decoding logic and then read its configuration register (if any).
 	 */
 	hose->io_base_phys = 0xf4000000;
 	hose->pci_io_size = 0x00400000;
@@ -671,10 +672,10 @@ static void __init setup_u3_ht(struct pci_controller* hose)
 		return;
 	}
 
-	/* We "remove" the AGP resources from the resources allocated to HT, that
-	 * is we create "holes". However, that code does assumptions that so far
-	 * happen to be true (cross fingers...), typically that resources in the
-	 * AGP node are properly ordered
+	/* We "remove" the AGP resources from the resources allocated to HT,
+	 * that is we create "holes". However, that code does assumptions
+	 * that so far happen to be true (cross fingers...), typically that
+	 * resources in the AGP node are properly ordered
 	 */
 	cur = 0;
 	for (i=0; i<3; i++) {
@@ -684,23 +685,30 @@ static void __init setup_u3_ht(struct pci_controller* hose)
 		/* We don't care about "fine" resources */
 		if (res->start >= 0xf0000000)
 			continue;
-		/* Check if it's just a matter of "shrinking" us in one direction */
+		/* Check if it's just a matter of "shrinking" us in one
+		 * direction
+		 */
 		if (hose->mem_resources[cur].start == res->start) {
 			DBG("U3/HT: shrink start of %d, %08lx -> %08lx\n",
-			    cur, hose->mem_resources[cur].start, res->end + 1);
+			    cur, hose->mem_resources[cur].start,
+			    res->end + 1);
 			hose->mem_resources[cur].start = res->end + 1;
 			continue;
 		}
 		if (hose->mem_resources[cur].end == res->end) {
 			DBG("U3/HT: shrink end of %d, %08lx -> %08lx\n",
-			    cur, hose->mem_resources[cur].end, res->start - 1);
+			    cur, hose->mem_resources[cur].end,
+			    res->start - 1);
 			hose->mem_resources[cur].end = res->start - 1;
 			continue;
 		}
 		/* No, it's not the case, we need a hole */
 		if (cur == 2) {
-			/* not enough resources for a hole, we drop part of the range */
-			printk(KERN_WARNING "Running out of resources for /ht host !\n");
+			/* not enough resources for a hole, we drop part
+			 * of the range
+			 */
+			printk(KERN_WARNING "Running out of resources"
+			       " for /ht host !\n");
 			hose->mem_resources[cur].end = res->start - 1;
 			continue;
 		}
@@ -714,17 +722,6 @@ static void __init setup_u3_ht(struct pci_controller* hose)
 		hose->mem_resources[cur-1].end = res->start - 1;
 	}
 }
-
-/* XXX this needs to be converged between ppc32 and ppc64... */
-static struct pci_controller * __init pcibios_alloc_controller(void)
-{
-	struct pci_controller *hose;
-
-	hose = alloc_bootmem(sizeof(struct pci_controller));
-	if (hose)
-		pci_setup_pci_controller(hose);
-	return hose;
-}
 #endif
 
 /*
@@ -756,11 +753,16 @@ static int __init add_bridge(struct device_node *dev)
 #endif
 	bus_range = (int *) get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
-		printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
-			       dev->full_name);
+		printk(KERN_WARNING "Can't get bus-range for %s, assume"
+		       " bus 0\n", dev->full_name);
 	}
 
+	/* XXX Different prototypes, to be merged */
+#ifdef CONFIG_PPC64
+	hose = pcibios_alloc_controller(dev);
+#else
 	hose = pcibios_alloc_controller();
+#endif
 	if (!hose)
 		return -ENOMEM;
 	hose->arch_data = dev;
@@ -768,7 +770,7 @@ static int __init add_bridge(struct device_node *dev)
 	hose->last_busno = bus_range ? bus_range[1] : 0xff;
 
 	disp_name = NULL;
-#ifdef CONFIG_POWER4
+#ifdef CONFIG_PPC64
 	if (device_is_compatible(dev, "u3-agp")) {
 		setup_u3_agp(hose);
 		disp_name = "U3-AGP";
diff --git a/include/asm-powerpc/ppc-pci.h b/include/asm-powerpc/ppc-pci.h
index 9896fade98a7..2e36e5a7f4f3 100644
--- a/include/asm-powerpc/ppc-pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -14,7 +14,6 @@
 
 extern unsigned long isa_io_base;
 
-extern void pci_setup_pci_controller(struct pci_controller *hose);
 extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
 extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
 
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
index efbdaece0cf0..cf04327a597a 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-ppc64/pci-bridge.h
@@ -61,12 +61,14 @@ struct pci_dn {
 	int	busno;			/* for pci devices */
 	int	bussubno;		/* for pci devices */
 	int	devfn;			/* for pci devices */
+
+#ifdef CONFIG_PPC_PSERIES
 	int	eeh_mode;		/* See eeh.h for possible EEH_MODEs */
 	int	eeh_config_addr;
 	int 	eeh_check_count;	/* # times driver ignored error */
 	int 	eeh_freeze_count;	/* # times this device froze up. */
 	int	eeh_is_bridge;		/* device is pci-to-pci bridge */
-
+#endif
 	int	pci_ext_config_space;	/* for pci devices */
 	struct  pci_controller *phb;	/* for pci devices */
 	struct	iommu_table *iommu_table;	/* for phb's or bridges */
@@ -74,9 +76,9 @@ struct pci_dn {
 	struct	device_node *node;	/* back-pointer to the device_node */
 #ifdef CONFIG_PPC_ISERIES
 	struct	list_head Device_List;
-	int		Irq;		/* Assigned IRQ */
-	int		Flags;		/* Possible flags(disable/bist)*/
-	u8		LogicalSlot;	/* Hv Slot Index for Tces */
+	int	Irq;			/* Assigned IRQ */
+	int	Flags;			/* Possible flags(disable/bist)*/
+	u8	LogicalSlot;		/* Hv Slot Index for Tces */
 #endif
 	u32	config_space[16];	/* saved PCI config space */
 };
@@ -136,6 +138,10 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
 	return PCI_DN(busdn)->phb;
 }
 
+extern struct pci_controller *
+pcibios_alloc_controller(struct device_node *dev);
+extern void pcibios_free_controller(struct pci_controller *phb);
+
 /* Return values for ppc_md.pci_probe_mode function */
 #define PCI_PROBE_NONE		-1	/* Don't look at this bus at all */
 #define PCI_PROBE_NORMAL	0	/* Do normal PCI probing */