diff --git a/arch/ppc/kernel/syscalls.c b/arch/ppc/kernel/syscalls.c
index 124313ce3c09..127f040de9de 100644
--- a/arch/ppc/kernel/syscalls.c
+++ b/arch/ppc/kernel/syscalls.c
@@ -41,10 +41,6 @@
 #include <asm/ipc.h>
 #include <asm/semaphore.h>
 
-void
-check_bugs(void)
-{
-}
 
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls..
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index 8189953a372c..a91daa324e88 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -89,11 +89,12 @@ drivers-$(CONFIG_OPROFILE)	+= arch/ppc64/oprofile/
 
 boot := arch/ppc64/boot
 
-boottarget-$(CONFIG_PPC_PSERIES) := zImage zImage.initrd
-boottarget-$(CONFIG_PPC_MAPLE) := zImage zImage.initrd
-boottarget-$(CONFIG_PPC_ISERIES) := vmlinux.sminitrd vmlinux.initrd vmlinux.sm
-boottarget-$(CONFIG_PPC_BPA) := zImage zImage.initrd
-$(boottarget-y): vmlinux
+boottargets-$(CONFIG_PPC_PSERIES) += zImage zImage.initrd
+boottargets-$(CONFIG_PPC_PMAC) += zImage.vmode zImage.initrd.vmode
+boottargets-$(CONFIG_PPC_MAPLE) += zImage zImage.initrd
+boottargets-$(CONFIG_PPC_ISERIES) += vmlinux.sminitrd vmlinux.initrd vmlinux.sm
+boottargets-$(CONFIG_PPC_BPA) += zImage zImage.initrd
+$(boottargets-y): vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
 bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage
@@ -131,10 +132,12 @@ include3/asm:
 	$(Q)ln -fsn $(srctree)/include/asm-powerpc include3/asm
 
 define archhelp
-  echo  '* zImage       - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
-  echo  '  zImage.initrd- Compressed kernel image with initrd attached,'
-  echo  '		   sourced from arch/$(ARCH)/boot/ramdisk.image.gz'
-  echo  '		   (arch/$(ARCH)/boot/zImage.initrd)'
+  echo  '  zImage.vmode        - Compressed kernel image (arch/$(ARCH)/boot/zImage.vmode)'
+  echo  '  zImage.initrd.vmode - Compressed kernel image with initrd attached,'
+  echo  '                        sourced from arch/$(ARCH)/boot/ramdisk.image.gz'
+  echo  '                        (arch/$(ARCH)/boot/zImage.initrd.vmode)'
+  echo  '  zImage              - zImage for pSeries machines'
+  echo  '  zImage.initrd       - zImage with initrd for pSeries machines'
 endef
 
 CLEAN_FILES += include/asm-ppc64/offsets.h
diff --git a/arch/ppc64/boot/Makefile b/arch/ppc64/boot/Makefile
index 2c5f5e73d00c..33fdc8710891 100644
--- a/arch/ppc64/boot/Makefile
+++ b/arch/ppc64/boot/Makefile
@@ -37,6 +37,9 @@ quiet_cmd_bootcc = BOOTCC  $@
 quiet_cmd_bootas = BOOTAS  $@
       cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
 
+quiet_cmd_bootld = BOOTLD  $@
+      cmd_bootld = $(CROSS32LD) $(BOOTLFLAGS) -o $@ $(2)
+
 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c
 	$(call if_changed_dep,bootcc)
 $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S
@@ -53,7 +56,7 @@ src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
 gz-sec  = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
 
 hostprogs-y		:= addnote addRamDisk
-targets 		+= zImage zImage.initrd imagesize.c \
+targets 		+= zImage.vmode zImage.initrd.vmode zImage zImage.initrd imagesize.c \
 			   $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
 			   $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
 			   $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
@@ -63,7 +66,7 @@ extra-y			:= initrd.o
 quiet_cmd_ramdisk = RAMDISK $@
       cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz $< $@
 
-quiet_cmd_stripvm = STRIP $@
+quiet_cmd_stripvm = STRIP   $@
       cmd_stripvm = $(STRIP) -s $< -o $@
 
 vmlinux.strip: vmlinux FORCE
@@ -71,12 +74,20 @@ vmlinux.strip: vmlinux FORCE
 $(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz FORCE
 	$(call if_changed,ramdisk)
 
-addsection = $(CROSS32OBJCOPY) $(1) \
-		--add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $(1)))=$(patsubst %.o,%.gz, $(1)) \
-		--set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $(1)))=$(OBJCOPYFLAGS)
+quiet_cmd_addsection = ADDSEC  $@
+      cmd_addsection = $(CROSS32OBJCOPY) $@ \
+		--add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(patsubst %.o,%.gz, $@) \
+		--set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(OBJCOPYFLAGS)
 
-quiet_cmd_addnote = ADDNOTE $@ 
-      cmd_addnote = $(CROSS32LD) $(BOOTLFLAGS) -o $@ $(obj-boot) && $(obj)/addnote $@
+quiet_cmd_imagesize = GENSIZE $@
+      cmd_imagesize = ls -l vmlinux.strip | \
+		awk '{printf "/* generated -- do not edit! */\n" "unsigned long vmlinux_filesize = %d;\n", $$5}' \
+		> $(obj)/imagesize.c && \
+		$(CROSS_COMPILE)nm -n vmlinux | tail -n 1 | \
+		awk '{printf "unsigned long vmlinux_memsize = 0x%s;\n", substr($$1,8)}' >> $(obj)/imagesize.c
+
+quiet_cmd_addnote = ADDNOTE $@
+      cmd_addnote = $(obj)/addnote $@
 
 $(call gz-sec, $(required)): $(obj)/kernel-%.gz: % FORCE
 	$(call if_changed,gzip)
@@ -85,28 +96,30 @@ $(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz
 	cp -f $(obj)/ramdisk.image.gz $@
 
 $(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz FORCE
-	touch $@
+	@touch $@
 
 $(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c FORCE
 	$(call if_changed_dep,bootcc)
-	$(call addsection, $@)
+	$(call cmd,addsection)
 
-$(obj)/zImage: obj-boot += $(call obj-sec, $(required))
-$(obj)/zImage: $(call obj-sec, $(required)) $(obj-boot) $(obj)/addnote FORCE
+$(obj)/zImage.vmode: obj-boot += $(call obj-sec, $(required))
+$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) FORCE
+	$(call cmd,bootld,$(obj-boot))
+
+$(obj)/zImage.initrd.vmode: obj-boot += $(call obj-sec, $(required) $(initrd))
+$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) FORCE
+	$(call cmd,bootld,$(obj-boot))
+
+$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote FORCE
+	@cp -f $< $@
 	$(call if_changed,addnote)
 
-$(obj)/zImage.initrd: obj-boot += $(call obj-sec, $(required) $(initrd))
-$(obj)/zImage.initrd: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(obj)/addnote FORCE
+$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote FORCE
+	@cp -f $< $@
 	$(call if_changed,addnote)
 
 $(obj)/imagesize.c: vmlinux.strip
-	@echo Generating $@
-	ls -l vmlinux.strip | \
-	awk '{printf "/* generated -- do not edit! */\n" \
-		"unsigned long vmlinux_filesize = %d;\n", $$5}' > $(obj)/imagesize.c
-	$(CROSS_COMPILE)nm -n vmlinux | tail -n 1 | \
-	awk '{printf "unsigned long vmlinux_memsize = 0x%s;\n", substr($$1,8)}' \
-		>> $(obj)/imagesize.c
+	$(call cmd,imagesize)
 
 install: $(CONFIGURE) $(BOOTIMAGE)
 	sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"
diff --git a/arch/ppc64/boot/main.c b/arch/ppc64/boot/main.c
index 99e68cfbe688..f7ec19a2d0b0 100644
--- a/arch/ppc64/boot/main.c
+++ b/arch/ppc64/boot/main.c
@@ -23,7 +23,8 @@ extern void flush_cache(void *, unsigned long);
 
 /* Value picked to match that used by yaboot */
 #define PROG_START	0x01400000
-#define RAM_END		(256<<20) // Fixme: use OF */
+#define RAM_END		(512<<20) // Fixme: use OF */
+#define	ONE_MB		0x100000
 
 static char *avail_ram;
 static char *begin_avail, *end_avail;
@@ -32,6 +33,7 @@ static unsigned int heap_use;
 static unsigned int heap_max;
 
 extern char _start[];
+extern char _end[];
 extern char _vmlinux_start[];
 extern char _vmlinux_end[];
 extern char _initrd_start[];
@@ -58,13 +60,13 @@ typedef void (*kernel_entry_t)( unsigned long,
 
 #undef DEBUG
 
-static unsigned long claim_base = PROG_START;
+static unsigned long claim_base;
 
 static unsigned long try_claim(unsigned long size)
 {
 	unsigned long addr = 0;
 
-	for(; claim_base < RAM_END; claim_base += 0x100000) {
+	for(; claim_base < RAM_END; claim_base += ONE_MB) {
 #ifdef DEBUG
 		printf("    trying: 0x%08lx\n\r", claim_base);
 #endif
@@ -95,7 +97,26 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
 	if (getprop(chosen_handle, "stdin", &stdin, sizeof(stdin)) != 4)
 		exit();
 
-	printf("\n\rzImage starting: loaded at 0x%x\n\r", (unsigned)_start);
+	printf("\n\rzImage starting: loaded at 0x%lx\n\r", (unsigned long) _start);
+
+	/*
+	 * The first available claim_base must be above the end of the
+	 * the loaded kernel wrapper file (_start to _end includes the
+	 * initrd image if it is present) and rounded up to a nice
+	 * 1 MB boundary for good measure.
+	 */
+
+	claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB);
+
+#if defined(PROG_START)
+	/*
+	 * Maintain a "magic" minimum address. This keeps some older
+	 * firmware platforms running.
+	 */
+
+	if (claim_base < PROG_START)
+		claim_base = PROG_START;
+#endif
 
 	/*
 	 * Now we try to claim some memory for the kernel itself
@@ -105,7 +126,7 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
 	 * size... In practice we add 1Mb, that is enough, but we should really
 	 * consider fixing the Makefile to put a _raw_ kernel in there !
 	 */
-	vmlinux_memsize += 0x100000;
+	vmlinux_memsize += ONE_MB;
 	printf("Allocating 0x%lx bytes for kernel ...\n\r", vmlinux_memsize);
 	vmlinux.addr = try_claim(vmlinux_memsize);
 	if (vmlinux.addr == 0) {
diff --git a/arch/ppc64/kernel/bpa_iic.c b/arch/ppc64/kernel/bpa_iic.c
index c8f3dc3fad70..0aaa878e19d3 100644
--- a/arch/ppc64/kernel/bpa_iic.c
+++ b/arch/ppc64/kernel/bpa_iic.c
@@ -205,6 +205,18 @@ static struct iic_regs __iomem *find_iic(int cpu)
 }
 
 #ifdef CONFIG_SMP
+
+/* Use the highest interrupt priorities for IPI */
+static inline int iic_ipi_to_irq(int ipi)
+{
+	return IIC_IPI_OFFSET + IIC_NUM_IPIS - 1 - ipi;
+}
+
+static inline int iic_irq_to_ipi(int irq)
+{
+	return IIC_NUM_IPIS - 1 - (irq - IIC_IPI_OFFSET);
+}
+
 void iic_setup_cpu(void)
 {
 	out_be64(&__get_cpu_var(iic).regs->prio, 0xff);
@@ -212,18 +224,20 @@ void iic_setup_cpu(void)
 
 void iic_cause_IPI(int cpu, int mesg)
 {
-	out_be64(&per_cpu(iic, cpu).regs->generate, mesg);
+	out_be64(&per_cpu(iic, cpu).regs->generate, (IIC_NUM_IPIS - 1 - mesg) << 4);
 }
 
 static irqreturn_t iic_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
 {
-
-	smp_message_recv(irq - IIC_IPI_OFFSET, regs);
+	smp_message_recv(iic_irq_to_ipi(irq), regs);
 	return IRQ_HANDLED;
 }
 
-static void iic_request_ipi(int irq, const char *name)
+static void iic_request_ipi(int ipi, const char *name)
 {
+	int irq;
+
+	irq = iic_ipi_to_irq(ipi);
 	/* IPIs are marked SA_INTERRUPT as they must run with irqs
 	 * disabled */
 	get_irq_desc(irq)->handler = &iic_pic;
@@ -233,10 +247,10 @@ static void iic_request_ipi(int irq, const char *name)
 
 void iic_request_IPIs(void)
 {
-	iic_request_ipi(IIC_IPI_OFFSET + PPC_MSG_CALL_FUNCTION, "IPI-call");
-	iic_request_ipi(IIC_IPI_OFFSET + PPC_MSG_RESCHEDULE, "IPI-resched");
+	iic_request_ipi(PPC_MSG_CALL_FUNCTION, "IPI-call");
+	iic_request_ipi(PPC_MSG_RESCHEDULE, "IPI-resched");
 #ifdef CONFIG_DEBUGGER
-	iic_request_ipi(IIC_IPI_OFFSET + PPC_MSG_DEBUGGER_BREAK, "IPI-debug");
+	iic_request_ipi(PPC_MSG_DEBUGGER_BREAK, "IPI-debug");
 #endif /* CONFIG_DEBUGGER */
 }
 #endif /* CONFIG_SMP */
diff --git a/arch/ppc64/kernel/eeh.c b/arch/ppc64/kernel/eeh.c
index 4c857a6516fc..ba93fd731222 100644
--- a/arch/ppc64/kernel/eeh.c
+++ b/arch/ppc64/kernel/eeh.c
@@ -254,6 +254,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
 static void __pci_addr_cache_insert_device(struct pci_dev *dev)
 {
 	struct device_node *dn;
+	struct pci_dn *pdn;
 	int i;
 	int inserted = 0;
 
@@ -265,8 +266,9 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
 	}
 
 	/* Skip any devices for which EEH is not enabled. */
-	if (!(dn->eeh_mode & EEH_MODE_SUPPORTED) ||
-	    dn->eeh_mode & EEH_MODE_NOCHECK) {
+	pdn = dn->data;
+	if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
+	    pdn->eeh_mode & EEH_MODE_NOCHECK) {
 #ifdef DEBUG
 		printk(KERN_INFO "PCI: skip building address cache for=%s\n",
 		       pci_name(dev));
@@ -415,6 +417,7 @@ int eeh_unregister_notifier(struct notifier_block *nb)
 static int read_slot_reset_state(struct device_node *dn, int rets[])
 {
 	int token, outputs;
+	struct pci_dn *pdn = dn->data;
 
 	if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) {
 		token = ibm_read_slot_reset_state2;
@@ -424,8 +427,8 @@ static int read_slot_reset_state(struct device_node *dn, int rets[])
 		outputs = 3;
 	}
 
-	return rtas_call(token, 3, outputs, rets, dn->eeh_config_addr,
-			 BUID_HI(dn->phb->buid), BUID_LO(dn->phb->buid));
+	return rtas_call(token, 3, outputs, rets, pdn->eeh_config_addr,
+			 BUID_HI(pdn->phb->buid), BUID_LO(pdn->phb->buid));
 }
 
 /**
@@ -534,6 +537,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 	unsigned long flags;
 	int rc, reset_state;
 	struct eeh_event  *event;
+	struct pci_dn *pdn;
 
 	__get_cpu_var(total_mmio_ffs)++;
 
@@ -542,14 +546,15 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 
 	if (!dn)
 		return 0;
+	pdn = dn->data;
 
 	/* Access to IO BARs might get this far and still not want checking. */
-	if (!(dn->eeh_mode & EEH_MODE_SUPPORTED) ||
-	    dn->eeh_mode & EEH_MODE_NOCHECK) {
+	if (!pdn->eeh_capable || !(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
+	    pdn->eeh_mode & EEH_MODE_NOCHECK) {
 		return 0;
 	}
 
-	if (!dn->eeh_config_addr) {
+	if (!pdn->eeh_config_addr) {
 		return 0;
 	}
 
@@ -557,7 +562,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 	 * If we already have a pending isolation event for this
 	 * slot, we know it's bad already, we don't need to check...
 	 */
-	if (dn->eeh_mode & EEH_MODE_ISOLATED) {
+	if (pdn->eeh_mode & EEH_MODE_ISOLATED) {
 		atomic_inc(&eeh_fail_count);
 		if (atomic_read(&eeh_fail_count) >= EEH_MAX_FAILS) {
 			/* re-read the slot reset state */
@@ -582,7 +587,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 	}
 
 	/* prevent repeated reports of this failure */
-	dn->eeh_mode |= EEH_MODE_ISOLATED;
+	pdn->eeh_mode |= EEH_MODE_ISOLATED;
 
 	reset_state = rets[0];
 
@@ -590,9 +595,9 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 	memset(slot_errbuf, 0, eeh_error_buf_size);
 
 	rc = rtas_call(ibm_slot_error_detail,
-	               8, 1, NULL, dn->eeh_config_addr,
-	               BUID_HI(dn->phb->buid),
-	               BUID_LO(dn->phb->buid), NULL, 0,
+	               8, 1, NULL, pdn->eeh_config_addr,
+	               BUID_HI(pdn->phb->buid),
+	               BUID_LO(pdn->phb->buid), NULL, 0,
 	               virt_to_phys(slot_errbuf),
 	               eeh_error_buf_size,
 	               1 /* Temporary Error */);
@@ -679,8 +684,9 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 	u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
 	u32 *regs;
 	int enable;
+	struct pci_dn *pdn = dn->data;
 
-	dn->eeh_mode = 0;
+	pdn->eeh_mode = 0;
 
 	if (status && strcmp(status, "ok") != 0)
 		return NULL;	/* ignore devices with bad status */
@@ -691,7 +697,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 
 	/* There is nothing to check on PCI to ISA bridges */
 	if (dn->type && !strcmp(dn->type, "isa")) {
-		dn->eeh_mode |= EEH_MODE_NOCHECK;
+		pdn->eeh_mode |= EEH_MODE_NOCHECK;
 		return NULL;
 	}
 
@@ -708,7 +714,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 		enable = 0;
 
 	if (!enable)
-		dn->eeh_mode |= EEH_MODE_NOCHECK;
+		pdn->eeh_mode |= EEH_MODE_NOCHECK;
 
 	/* Ok... see if this device supports EEH.  Some do, some don't,
 	 * and the only way to find out is to check each and every one. */
@@ -721,8 +727,8 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 				EEH_ENABLE);
 		if (ret == 0) {
 			eeh_subsystem_enabled = 1;
-			dn->eeh_mode |= EEH_MODE_SUPPORTED;
-			dn->eeh_config_addr = regs[0];
+			pdn->eeh_mode |= EEH_MODE_SUPPORTED;
+			pdn->eeh_config_addr = regs[0];
 #ifdef DEBUG
 			printk(KERN_DEBUG "EEH: %s: eeh enabled\n", dn->full_name);
 #endif
@@ -730,10 +736,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 
 			/* This device doesn't support EEH, but it may have an
 			 * EEH parent, in which case we mark it as supported. */
-			if (dn->parent && (dn->parent->eeh_mode & EEH_MODE_SUPPORTED)) {
+			if (dn->parent && dn->parent->data
+			    && (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) {
 				/* Parent supports EEH. */
-				dn->eeh_mode |= EEH_MODE_SUPPORTED;
-				dn->eeh_config_addr = dn->parent->eeh_config_addr;
+				pdn->eeh_mode |= EEH_MODE_SUPPORTED;
+				pdn->eeh_config_addr = PCI_DN(dn->parent)->eeh_config_addr;
 				return NULL;
 			}
 		}
@@ -790,11 +797,13 @@ void __init eeh_init(void)
 	for (phb = of_find_node_by_name(NULL, "pci"); phb;
 	     phb = of_find_node_by_name(phb, "pci")) {
 		unsigned long buid;
+		struct pci_dn *pci;
 
 		buid = get_phb_buid(phb);
-		if (buid == 0)
+		if (buid == 0 || phb->data == NULL)
 			continue;
 
+		pci = phb->data;
 		info.buid_lo = BUID_LO(buid);
 		info.buid_hi = BUID_HI(buid);
 		traverse_pci_devices(phb, early_enable_eeh, &info);
@@ -823,9 +832,9 @@ void eeh_add_device_early(struct device_node *dn)
 	struct pci_controller *phb;
 	struct eeh_early_enable_info info;
 
-	if (!dn)
+	if (!dn || !dn->data)
 		return;
-	phb = dn->phb;
+	phb = PCI_DN(dn)->phb;
 	if (NULL == phb || 0 == phb->buid) {
 		printk(KERN_WARNING "EEH: Expected buid but found none\n");
 		return;
diff --git a/arch/ppc64/kernel/iomap.c b/arch/ppc64/kernel/iomap.c
index 09a3062309e7..6160c8dbb7c5 100644
--- a/arch/ppc64/kernel/iomap.c
+++ b/arch/ppc64/kernel/iomap.c
@@ -22,13 +22,23 @@ unsigned int fastcall ioread16(void __iomem *addr)
 {
 	return readw(addr);
 }
+unsigned int fastcall ioread16be(void __iomem *addr)
+{
+	return in_be16(addr);
+}
 unsigned int fastcall ioread32(void __iomem *addr)
 {
 	return readl(addr);
 }
+unsigned int fastcall ioread32be(void __iomem *addr)
+{
+	return in_be32(addr);
+}
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
+EXPORT_SYMBOL(ioread16be);
 EXPORT_SYMBOL(ioread32);
+EXPORT_SYMBOL(ioread32be);
 
 void fastcall iowrite8(u8 val, void __iomem *addr)
 {
@@ -38,13 +48,23 @@ void fastcall iowrite16(u16 val, void __iomem *addr)
 {
 	writew(val, addr);
 }
+void fastcall iowrite16be(u16 val, void __iomem *addr)
+{
+	out_be16(addr, val);
+}
 void fastcall iowrite32(u32 val, void __iomem *addr)
 {
 	writel(val, addr);
 }
+void fastcall iowrite32be(u32 val, void __iomem *addr)
+{
+	out_be32(addr, val);
+}
 EXPORT_SYMBOL(iowrite8);
 EXPORT_SYMBOL(iowrite16);
+EXPORT_SYMBOL(iowrite16be);
 EXPORT_SYMBOL(iowrite32);
+EXPORT_SYMBOL(iowrite32be);
 
 /*
  * These are the "repeat read/write" functions. Note the
diff --git a/arch/ppc64/kernel/iommu.c b/arch/ppc64/kernel/iommu.c
index 845eebd1e28d..9032b6bfe036 100644
--- a/arch/ppc64/kernel/iommu.c
+++ b/arch/ppc64/kernel/iommu.c
@@ -438,7 +438,8 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl)
 
 void iommu_free_table(struct device_node *dn)
 {
-	struct iommu_table *tbl = dn->iommu_table;
+	struct pci_dn *pdn = dn->data;
+	struct iommu_table *tbl = pdn->iommu_table;
 	unsigned long bitmap_sz, i;
 	unsigned int order;
 
diff --git a/arch/ppc64/kernel/maple_pci.c b/arch/ppc64/kernel/maple_pci.c
index 53993999b265..5a8b4d8c2dd6 100644
--- a/arch/ppc64/kernel/maple_pci.c
+++ b/arch/ppc64/kernel/maple_pci.c
@@ -447,9 +447,9 @@ void __init maple_pci_init(void)
 	 */
 	if (u3_agp) {
 		struct device_node *np = u3_agp->arch_data;
-		np->busno = 0xf0;
+		PCI_DN(np)->busno = 0xf0;
 		for (np = np->child; np; np = np->sibling)
-			np->busno = 0xf0;
+			PCI_DN(np)->busno = 0xf0;
 	}
 
 	/* Tell pci.c to use the common resource allocation mecanism */
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 6d860c1d9fa0..c047663eb48d 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -1431,9 +1431,9 @@ _GLOBAL(sys_call_table)
 	.llong .sys_ni_syscall		/* 195 - 32bit only stat64 */
 	.llong .sys_ni_syscall		/* 32bit only lstat64 */
 	.llong .sys_ni_syscall		/* 32bit only fstat64 */
-	.llong .sys_ni_syscall		/* 32bit only pciconfig_read */
-	.llong .sys_ni_syscall		/* 32bit only pciconfig_write */
-	.llong .sys_ni_syscall		/* 32bit only pciconfig_iobase */
+	.llong .sys_pciconfig_read
+	.llong .sys_pciconfig_write
+	.llong .sys_pciconfig_iobase	/* 200 - pciconfig_iobase */
 	.llong .sys_ni_syscall		/* reserved for MacOnLinux */
 	.llong .sys_getdents64
 	.llong .sys_pivot_root
diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c
index 9d5e1e7fc389..f0fd7fbd6531 100644
--- a/arch/ppc64/kernel/pSeries_iommu.c
+++ b/arch/ppc64/kernel/pSeries_iommu.c
@@ -295,7 +295,7 @@ static void iommu_table_setparms_lpar(struct pci_controller *phb,
 				      struct iommu_table *tbl,
 				      unsigned int *dma_window)
 {
-	tbl->it_busno  = dn->bussubno;
+	tbl->it_busno  = PCI_DN(dn)->bussubno;
 
 	/* TODO: Parse field size properties properly. */
 	tbl->it_size   = (((unsigned long)dma_window[4] << 32) |
@@ -311,6 +311,7 @@ static void iommu_table_setparms_lpar(struct pci_controller *phb,
 static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 {
 	struct device_node *dn, *pdn;
+	struct pci_dn *pci;
 	struct iommu_table *tbl;
 
 	DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self);
@@ -325,6 +326,7 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 	 */
 
 	dn = pci_bus_to_OF_node(bus);
+	pci = dn->data;
 
 	if (!bus->self) {
 		/* Root bus */
@@ -341,18 +343,18 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 				 * alltogether. This leaves 768MB for the window.
 				 */
 				DBG("PHB has io-hole, reserving 256MB\n");
-				dn->phb->dma_window_size = 3 << 28;
-				dn->phb->dma_window_base_cur = 1 << 28;
+				pci->phb->dma_window_size = 3 << 28;
+				pci->phb->dma_window_base_cur = 1 << 28;
 			} else {
 				/* 1GB window by default */
-				dn->phb->dma_window_size = 1 << 30;
-				dn->phb->dma_window_base_cur = 0;
+				pci->phb->dma_window_size = 1 << 30;
+				pci->phb->dma_window_base_cur = 0;
 			}
 
 			tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
 
-			iommu_table_setparms(dn->phb, dn, tbl);
-			dn->iommu_table = iommu_init_table(tbl);
+			iommu_table_setparms(pci->phb, dn, tbl);
+			pci->iommu_table = iommu_init_table(tbl);
 		} else {
 			/* Do a 128MB table at root. This is used for the IDE
 			 * controller on some SMP-mode POWER4 machines. It
@@ -363,16 +365,16 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 			 * Allocate at offset 128MB to avoid having to deal
 			 * with ISA holes; 128MB table for IDE is plenty.
 			 */
-			dn->phb->dma_window_size = 1 << 27;
-			dn->phb->dma_window_base_cur = 1 << 27;
+			pci->phb->dma_window_size = 1 << 27;
+			pci->phb->dma_window_base_cur = 1 << 27;
 
 			tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
 
-			iommu_table_setparms(dn->phb, dn, tbl);
-			dn->iommu_table = iommu_init_table(tbl);
+			iommu_table_setparms(pci->phb, dn, tbl);
+			pci->iommu_table = iommu_init_table(tbl);
 
 			/* All child buses have 256MB tables */
-			dn->phb->dma_window_size = 1 << 28;
+			pci->phb->dma_window_size = 1 << 28;
 		}
 	} else {
 		pdn = pci_bus_to_OF_node(bus->parent);
@@ -386,12 +388,12 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 
 			tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
 
-			iommu_table_setparms(dn->phb, dn, tbl);
+			iommu_table_setparms(pci->phb, dn, tbl);
 
-			dn->iommu_table = iommu_init_table(tbl);
+			pci->iommu_table = iommu_init_table(tbl);
 		} else {
 			/* Lower than first child or under python, use parent table */
-			dn->iommu_table = pdn->iommu_table;
+			pci->iommu_table = PCI_DN(pdn)->iommu_table;
 		}
 	}
 }
@@ -401,6 +403,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 {
 	struct iommu_table *tbl;
 	struct device_node *dn, *pdn;
+	struct pci_dn *ppci;
 	unsigned int *dma_window = NULL;
 
 	DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
@@ -419,22 +422,24 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 		return;
 	}
 
-	if (!pdn->iommu_table) {
+	ppci = pdn->data;
+	if (!ppci->iommu_table) {
 		/* Bussubno hasn't been copied yet.
 		 * Do it now because iommu_table_setparms_lpar needs it.
 		 */
-		pdn->bussubno = bus->number;
+
+		ppci->bussubno = bus->number;
 
 		tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
 						    GFP_KERNEL);
 	
-		iommu_table_setparms_lpar(pdn->phb, pdn, tbl, dma_window);
+		iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
 
-		pdn->iommu_table = iommu_init_table(tbl);
+		ppci->iommu_table = iommu_init_table(tbl);
 	}
 
 	if (pdn != dn)
-		dn->iommu_table = pdn->iommu_table;
+		PCI_DN(dn)->iommu_table = ppci->iommu_table;
 }
 
 
@@ -449,11 +454,11 @@ static void iommu_dev_setup_pSeries(struct pci_dev *dev)
 	 */
 	mydn = dn = pci_device_to_OF_node(dev);
 
-	while (dn && dn->iommu_table == NULL)
+	while (dn && dn->data && PCI_DN(dn)->iommu_table == NULL)
 		dn = dn->parent;
 
-	if (dn) {
-		mydn->iommu_table = dn->iommu_table;
+	if (dn && dn->data) {
+		PCI_DN(mydn)->iommu_table = PCI_DN(dn)->iommu_table;
 	} else {
 		DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, dev->pretty_name);
 	}
@@ -463,10 +468,11 @@ static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long acti
 {
 	int err = NOTIFY_OK;
 	struct device_node *np = node;
+	struct pci_dn *pci = np->data;
 
 	switch (action) {
 	case PSERIES_RECONFIG_REMOVE:
-		if (np->iommu_table &&
+		if (pci->iommu_table &&
 		    get_property(np, "ibm,dma-window", NULL))
 			iommu_free_table(np);
 		break;
@@ -486,6 +492,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 	struct device_node *pdn, *dn;
 	struct iommu_table *tbl;
 	int *dma_window = NULL;
+	struct pci_dn *pci;
 
 	DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, dev->pretty_name);
 
@@ -497,8 +504,10 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 	 */
 	dn = pci_device_to_OF_node(dev);
 
-	for (pdn = dn; pdn && !pdn->iommu_table; pdn = pdn->parent) {
-		dma_window = (unsigned int *)get_property(pdn, "ibm,dma-window", NULL);
+	for (pdn = dn; pdn && pdn->data && !PCI_DN(pdn)->iommu_table;
+	     pdn = pdn->parent) {
+		dma_window = (unsigned int *)
+			get_property(pdn, "ibm,dma-window", NULL);
 		if (dma_window)
 			break;
 	}
@@ -515,20 +524,21 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 		DBG("Found DMA window, allocating table\n");
 	}
 
-	if (!pdn->iommu_table) {
+	pci = pdn->data;
+	if (!pci->iommu_table) {
 		/* iommu_table_setparms_lpar needs bussubno. */
-		pdn->bussubno = pdn->phb->bus->number;
+		pci->bussubno = pci->phb->bus->number;
 
 		tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
 						    GFP_KERNEL);
 
-		iommu_table_setparms_lpar(pdn->phb, pdn, tbl, dma_window);
+		iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
 
-		pdn->iommu_table = iommu_init_table(tbl);
+		pci->iommu_table = iommu_init_table(tbl);
 	}
 
 	if (pdn != dn)
-		dn->iommu_table = pdn->iommu_table;
+		PCI_DN(dn)->iommu_table = pci->iommu_table;
 }
 
 static void iommu_bus_setup_null(struct pci_bus *b) { }
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index b5ca7d8347e2..8447dcc2c2b3 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -21,6 +21,7 @@
 #include <linux/bootmem.h>
 #include <linux/mm.h>
 #include <linux/list.h>
+#include <linux/syscalls.h>
 
 #include <asm/processor.h>
 #include <asm/io.h>
@@ -837,9 +838,11 @@ int pcibios_scan_all_fns(struct pci_bus *bus, int devfn)
         * device tree.  If they are then we need to scan all the
         * functions of this slot.
         */
-       for (dn = busdn->child; dn; dn = dn->sibling)
-               if ((dn->devfn >> 3) == (devfn >> 3))
+       for (dn = busdn->child; dn; dn = dn->sibling) {
+	       struct pci_dn *pdn = dn->data;
+	       if (pdn && (pdn->devfn >> 3) == (devfn >> 3))
                        return 1;
+       }
 
        return 0;
 }
@@ -982,3 +985,62 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar,
 }
 
 #endif /* CONFIG_PPC_MULTIPLATFORM */
+
+
+#define IOBASE_BRIDGE_NUMBER	0
+#define IOBASE_MEMORY		1
+#define IOBASE_IO		2
+#define IOBASE_ISA_IO		3
+#define IOBASE_ISA_MEM		4
+
+long sys_pciconfig_iobase(long which, unsigned long in_bus,
+			  unsigned long in_devfn)
+{
+	struct pci_controller* hose;
+	struct list_head *ln;
+	struct pci_bus *bus = NULL;
+	struct device_node *hose_node;
+
+	/* Argh ! Please forgive me for that hack, but that's the
+	 * simplest way to get existing XFree to not lockup on some
+	 * G5 machines... So when something asks for bus 0 io base
+	 * (bus 0 is HT root), we return the AGP one instead.
+	 */
+#ifdef CONFIG_PPC_PMAC
+	if (systemcfg->platform == PLATFORM_POWERMAC &&
+	    machine_is_compatible("MacRISC4"))
+		if (in_bus == 0)
+			in_bus = 0xf0;
+#endif /* CONFIG_PPC_PMAC */
+
+	/* That syscall isn't quite compatible with PCI domains, but it's
+	 * used on pre-domains setup. We return the first match
+	 */
+
+	for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) {
+		bus = pci_bus_b(ln);
+		if (in_bus >= bus->number && in_bus < (bus->number + bus->subordinate))
+			break;
+		bus = NULL;
+	}
+	if (bus == NULL || bus->sysdata == NULL)
+		return -ENODEV;
+
+	hose_node = (struct device_node *)bus->sysdata;
+	hose = PCI_DN(hose_node)->phb;
+
+	switch (which) {
+	case IOBASE_BRIDGE_NUMBER:
+		return (long)hose->first_busno;
+	case IOBASE_MEMORY:
+		return (long)hose->pci_mem_offset;
+	case IOBASE_IO:
+		return (long)hose->io_base_phys;
+	case IOBASE_ISA_IO:
+		return (long)isa_io_base;
+	case IOBASE_ISA_MEM:
+		return -EINVAL;
+	}
+
+	return -EOPNOTSUPP;
+}
diff --git a/arch/ppc64/kernel/pci.h b/arch/ppc64/kernel/pci.h
index 26be78b13af1..5eb2cc320566 100644
--- a/arch/ppc64/kernel/pci.h
+++ b/arch/ppc64/kernel/pci.h
@@ -34,7 +34,6 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
 
 void pci_devs_phb_init(void);
 void pci_devs_phb_init_dynamic(struct pci_controller *phb);
-struct device_node *fetch_dev_dn(struct pci_dev *dev);
 
 /* PCI address cache management routines */
 void pci_addr_cache_insert_device(struct pci_dev *dev);
diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/ppc64/kernel/pci_dn.c
index ec345462afc3..a86389d07d57 100644
--- a/arch/ppc64/kernel/pci_dn.c
+++ b/arch/ppc64/kernel/pci_dn.c
@@ -23,6 +23,8 @@
 #include <linux/pci.h>
 #include <linux/string.h>
 #include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/bootmem.h>
 
 #include <asm/io.h>
 #include <asm/prom.h>
@@ -40,16 +42,26 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
 	struct pci_controller *phb = data;
 	int *type = (int *)get_property(dn, "ibm,pci-config-space-type", NULL);
 	u32 *regs;
+	struct pci_dn *pdn;
 
-	dn->phb = phb;
+	if (phb->is_dynamic)
+		pdn = kmalloc(sizeof(*pdn), GFP_KERNEL);
+	else
+		pdn = alloc_bootmem(sizeof(*pdn));
+	if (pdn == NULL)
+		return NULL;
+	memset(pdn, 0, sizeof(*pdn));
+	dn->data = pdn;
+	pdn->node = dn;
+	pdn->phb = phb;
 	regs = (u32 *)get_property(dn, "reg", NULL);
 	if (regs) {
 		/* First register entry is addr (00BBSS00)  */
-		dn->busno = (regs[0] >> 16) & 0xff;
-		dn->devfn = (regs[0] >> 8) & 0xff;
+		pdn->busno = (regs[0] >> 16) & 0xff;
+		pdn->devfn = (regs[0] >> 8) & 0xff;
 	}
 
-	dn->pci_ext_config_space = (type && *type == 1);
+	pdn->pci_ext_config_space = (type && *type == 1);
 	return NULL;
 }
 
@@ -112,10 +124,15 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
 void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
 {
 	struct device_node * dn = (struct device_node *) phb->arch_data;
+	struct pci_dn *pdn;
 
 	/* PHB nodes themselves must not match */
-	dn->devfn = dn->busno = -1;
-	dn->phb = phb;
+	update_dn_pci_info(dn, phb);
+	pdn = dn->data;
+	if (pdn) {
+		pdn->devfn = pdn->busno = -1;
+		pdn->phb = phb;
+	}
 
 	/* Update dn->phb ptrs for new phb and children devices */
 	traverse_pci_devices(dn, update_dn_pci_info, phb);
@@ -123,14 +140,17 @@ void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
 
 /*
  * Traversal func that looks for a <busno,devfcn> value.
- * If found, the device_node is returned (thus terminating the traversal).
+ * If found, the pci_dn is returned (thus terminating the traversal).
  */
 static void *is_devfn_node(struct device_node *dn, void *data)
 {
 	int busno = ((unsigned long)data >> 8) & 0xff;
 	int devfn = ((unsigned long)data) & 0xff;
+	struct pci_dn *pci = dn->data;
 
-	return ((devfn == dn->devfn) && (busno == dn->busno)) ? dn : NULL;
+	if (pci && (devfn == pci->devfn) && (busno == pci->busno))
+		return dn;
+	return NULL;
 }
 
 /*
@@ -149,13 +169,10 @@ static void *is_devfn_node(struct device_node *dn, void *data)
 struct device_node *fetch_dev_dn(struct pci_dev *dev)
 {
 	struct device_node *orig_dn = dev->sysdata;
-	struct pci_controller *phb = orig_dn->phb; /* assume same phb as orig_dn */
-	struct device_node *phb_dn;
 	struct device_node *dn;
 	unsigned long searchval = (dev->bus->number << 8) | dev->devfn;
 
-	phb_dn = phb->arch_data;
-	dn = traverse_pci_devices(phb_dn, is_devfn_node, (void *)searchval);
+	dn = traverse_pci_devices(orig_dn, is_devfn_node, (void *)searchval);
 	if (dn)
 		dev->sysdata = dn;
 	return dn;
@@ -165,11 +182,13 @@ EXPORT_SYMBOL(fetch_dev_dn);
 static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
 {
 	struct device_node *np = node;
+	struct pci_dn *pci;
 	int err = NOTIFY_OK;
 
 	switch (action) {
 	case PSERIES_RECONFIG_ADD:
-		update_dn_pci_info(np, np->parent->phb);
+		pci = np->parent->data;
+		update_dn_pci_info(np, pci->phb);
 		break;
 	default:
 		err = NOTIFY_DONE;
diff --git a/arch/ppc64/kernel/pci_iommu.c b/arch/ppc64/kernel/pci_iommu.c
index ef0a62b916be..14647e09c9cd 100644
--- a/arch/ppc64/kernel/pci_iommu.c
+++ b/arch/ppc64/kernel/pci_iommu.c
@@ -66,7 +66,7 @@ static inline struct iommu_table *devnode_table(struct device *dev)
 #endif /* CONFIG_PPC_ISERIES */
 
 #ifdef CONFIG_PPC_MULTIPLATFORM
-	return PCI_GET_DN(pdev)->iommu_table;
+	return PCI_DN(PCI_GET_DN(pdev))->iommu_table;
 #endif /* CONFIG_PPC_MULTIPLATFORM */
 }
 
diff --git a/arch/ppc64/kernel/pmac_feature.c b/arch/ppc64/kernel/pmac_feature.c
index 98ed2bccab1a..eb4e6c3f694d 100644
--- a/arch/ppc64/kernel/pmac_feature.c
+++ b/arch/ppc64/kernel/pmac_feature.c
@@ -674,6 +674,7 @@ void __init pmac_check_ht_link(void)
 #if 0 /* Disabled for now */
 	u32	ufreq, freq, ucfg, cfg;
 	struct device_node *pcix_node;
+	struct pci_dn *pdn;
 	u8  	px_bus, px_devfn;
 	struct pci_controller *px_hose;
 
@@ -687,9 +688,10 @@ void __init pmac_check_ht_link(void)
 		printk("No PCI-X bridge found\n");
 		return;
 	}
-	px_hose = pcix_node->phb;
-	px_bus = pcix_node->busno;
-	px_devfn = pcix_node->devfn;
+	pdn = pcix_node->data;
+	px_hose = pdn->phb;
+	px_bus = pdn->busno;
+	px_devfn = pdn->devfn;
 	
 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
 	early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
diff --git a/arch/ppc64/kernel/pmac_pci.c b/arch/ppc64/kernel/pmac_pci.c
index 71fe911ad183..d37bff2d7d40 100644
--- a/arch/ppc64/kernel/pmac_pci.c
+++ b/arch/ppc64/kernel/pmac_pci.c
@@ -242,7 +242,7 @@ static int u3_ht_skip_device(struct pci_controller *hose,
 	else
 		busdn = hose->arch_data;
 	for (dn = busdn->child; dn; dn = dn->sibling)
-		if (dn->devfn == devfn)
+		if (dn->data && PCI_DN(dn)->devfn == devfn)
 			break;
 	if (dn == NULL)
 		return -1;
@@ -746,9 +746,9 @@ void __init pmac_pci_init(void)
 	 */
 	if (u3_agp) {
 		struct device_node *np = u3_agp->arch_data;
-		np->busno = 0xf0;
+		PCI_DN(np)->busno = 0xf0;
 		for (np = np->child; np; np = np->sibling)
-			np->busno = 0xf0;
+			PCI_DN(np)->busno = 0xf0;
 	}
 
 	pmac_check_ht_link();
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index 6ad5a8467f87..7035deb6de92 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -1733,6 +1733,7 @@ static void of_node_release(struct kref *kref)
 	kfree(node->intrs);
 	kfree(node->addrs);
 	kfree(node->full_name);
+	kfree(node->data);
 	kfree(node);
 }
 
diff --git a/arch/ppc64/kernel/rtas_pci.c b/arch/ppc64/kernel/rtas_pci.c
index 1dccadaddd1d..4a9719b48abe 100644
--- a/arch/ppc64/kernel/rtas_pci.c
+++ b/arch/ppc64/kernel/rtas_pci.c
@@ -48,7 +48,7 @@ static int write_pci_config;
 static int ibm_read_pci_config;
 static int ibm_write_pci_config;
 
-static int config_access_valid(struct device_node *dn, int where)
+static int config_access_valid(struct pci_dn *dn, int where)
 {
 	if (where < 256)
 		return 1;
@@ -78,15 +78,17 @@ static int rtas_read_config(struct device_node *dn, int where, int size, u32 *va
 	int returnval = -1;
 	unsigned long buid, addr;
 	int ret;
+	struct pci_dn *pdn;
 
-	if (!dn)
+	if (!dn || !dn->data)
 		return PCIBIOS_DEVICE_NOT_FOUND;
-	if (!config_access_valid(dn, where))
+	pdn = dn->data;
+	if (!config_access_valid(pdn, where))
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	addr = ((where & 0xf00) << 20) | (dn->busno << 16) |
-		(dn->devfn << 8) | (where & 0xff);
-	buid = dn->phb->buid;
+	addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
+		(pdn->devfn << 8) | (where & 0xff);
+	buid = pdn->phb->buid;
 	if (buid) {
 		ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
 				addr, buid >> 32, buid & 0xffffffff, size);
@@ -98,8 +100,8 @@ static int rtas_read_config(struct device_node *dn, int where, int size, u32 *va
 	if (ret)
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
-	if (returnval == EEH_IO_ERROR_VALUE(size)
-	    && eeh_dn_check_failure (dn, NULL))
+	if (returnval == EEH_IO_ERROR_VALUE(size) &&
+	    eeh_dn_check_failure (dn, NULL))
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
 	return PCIBIOS_SUCCESSFUL;
@@ -118,24 +120,28 @@ static int rtas_pci_read_config(struct pci_bus *bus,
 
 	/* Search only direct children of the bus */
 	for (dn = busdn->child; dn; dn = dn->sibling)
-		if (dn->devfn == devfn && of_device_available(dn))
+		if (dn->data && PCI_DN(dn)->devfn == devfn
+		    && of_device_available(dn))
 			return rtas_read_config(dn, where, size, val);
+
 	return PCIBIOS_DEVICE_NOT_FOUND;
 }
 
-static int rtas_write_config(struct device_node *dn, int where, int size, u32 val)
+int rtas_write_config(struct device_node *dn, int where, int size, u32 val)
 {
 	unsigned long buid, addr;
 	int ret;
+	struct pci_dn *pdn;
 
-	if (!dn)
+	if (!dn || !dn->data)
 		return PCIBIOS_DEVICE_NOT_FOUND;
-	if (!config_access_valid(dn, where))
+	pdn = dn->data;
+	if (!config_access_valid(pdn, where))
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	addr = ((where & 0xf00) << 20) | (dn->busno << 16) |
-		(dn->devfn << 8) | (where & 0xff);
-	buid = dn->phb->buid;
+	addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
+		(pdn->devfn << 8) | (where & 0xff);
+	buid = pdn->phb->buid;
 	if (buid) {
 		ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr, buid >> 32, buid & 0xffffffff, size, (ulong) val);
 	} else {
@@ -161,7 +167,8 @@ static int rtas_pci_write_config(struct pci_bus *bus,
 
 	/* Search only direct children of the bus */
 	for (dn = busdn->child; dn; dn = dn->sibling)
-		if (dn->devfn == devfn && of_device_available(dn))
+		if (dn->data && PCI_DN(dn)->devfn == devfn
+		    && of_device_available(dn))
 			return rtas_write_config(dn, where, size, val);
 	return PCIBIOS_DEVICE_NOT_FOUND;
 }
diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c
index 214914a95a50..e93c13458910 100644
--- a/arch/ppc64/kernel/sys_ppc32.c
+++ b/arch/ppc64/kernel/sys_ppc32.c
@@ -708,62 +708,9 @@ asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubu
 				   compat_ptr(ubuf));
 }
 
-#define IOBASE_BRIDGE_NUMBER	0
-#define IOBASE_MEMORY		1
-#define IOBASE_IO		2
-#define IOBASE_ISA_IO		3
-#define IOBASE_ISA_MEM		4
-
 asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
 {
-#ifdef CONFIG_PCI
-	struct pci_controller* hose;
-	struct list_head *ln;
-	struct pci_bus *bus = NULL;
-	struct device_node *hose_node;
-
-	/* Argh ! Please forgive me for that hack, but that's the
-	 * simplest way to get existing XFree to not lockup on some
-	 * G5 machines... So when something asks for bus 0 io base
-	 * (bus 0 is HT root), we return the AGP one instead.
-	 */
-#ifdef CONFIG_PPC_PMAC
-	if (systemcfg->platform == PLATFORM_POWERMAC &&
-	    machine_is_compatible("MacRISC4"))
-		if (in_bus == 0)
-			in_bus = 0xf0;
-#endif /* CONFIG_PPC_PMAC */
-
-	/* That syscall isn't quite compatible with PCI domains, but it's
-	 * used on pre-domains setup. We return the first match
-	 */
-
-	for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) {
-		bus = pci_bus_b(ln);
-		if (in_bus >= bus->number && in_bus < (bus->number + bus->subordinate))
-			break;
-		bus = NULL;
-	}
-	if (bus == NULL || bus->sysdata == NULL)
-		return -ENODEV;
-
-	hose_node = (struct device_node *)bus->sysdata;
-	hose = hose_node->phb;
-
-	switch (which) {
-	case IOBASE_BRIDGE_NUMBER:
-		return (long)hose->first_busno;
-	case IOBASE_MEMORY:
-		return (long)hose->pci_mem_offset;
-	case IOBASE_IO:
-		return (long)hose->io_base_phys;
-	case IOBASE_ISA_IO:
-		return (long)isa_io_base;
-	case IOBASE_ISA_MEM:
-		return -EINVAL;
-	}
-#endif	/* CONFIG_PCI */
-	return -EOPNOTSUPP;
+	return sys_pciconfig_iobase(which, in_bus, in_devfn);
 }
 
 
diff --git a/arch/ppc64/kernel/syscalls.c b/arch/ppc64/kernel/syscalls.c
index a8cbb202b8cd..05f16633bd2c 100644
--- a/arch/ppc64/kernel/syscalls.c
+++ b/arch/ppc64/kernel/syscalls.c
@@ -46,10 +46,6 @@
 
 extern unsigned long wall_jiffies;
 
-void
-check_bugs(void)
-{
-}
 
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls..
diff --git a/arch/ppc64/kernel/u3_iommu.c b/arch/ppc64/kernel/u3_iommu.c
index b6e3bca4102d..41ea09cb9ac7 100644
--- a/arch/ppc64/kernel/u3_iommu.c
+++ b/arch/ppc64/kernel/u3_iommu.c
@@ -276,7 +276,7 @@ static void iommu_dev_setup_u3(struct pci_dev *dev)
 	dn = pci_device_to_OF_node(dev);
 
 	if (dn)
-		dn->iommu_table = &iommu_table_u3;
+		PCI_DN(dn)->iommu_table = &iommu_table_u3;
 }
 
 static void iommu_bus_setup_u3(struct pci_bus *bus)
@@ -291,7 +291,7 @@ static void iommu_bus_setup_u3(struct pci_bus *bus)
 	dn = pci_bus_to_OF_node(bus);
 
 	if (dn)
-		dn->iommu_table = &iommu_table_u3;
+		PCI_DN(dn)->iommu_table = &iommu_table_u3;
 }
 
 static void iommu_dev_setup_null(struct pci_dev *dev) { }
diff --git a/arch/ppc64/kernel/udbg.c b/arch/ppc64/kernel/udbg.c
index ed6766e21f5a..d49c3613c8ec 100644
--- a/arch/ppc64/kernel/udbg.c
+++ b/arch/ppc64/kernel/udbg.c
@@ -158,14 +158,20 @@ static struct console udbg_console = {
 	.index	= -1,
 };
 
+static int early_console_initialized;
+
 void __init disable_early_printk(void)
 {
+	if (!early_console_initialized)
+		return;
 	unregister_console(&udbg_console);
+	early_console_initialized = 0;
 }
 
 /* called by setup_system */
 void register_early_udbg_console(void)
 {
+	early_console_initialized = 1;
 	register_console(&udbg_console);
 }
 
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
index a14ab87df491..c2157c9c3acb 100644
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -554,12 +554,12 @@ void __init do_init_bootmem(void)
 	 * present.
 	 */
 	for (i=0; i < lmb.memory.cnt; i++)
-		free_bootmem(lmb_start_pfn(&lmb.memory, i),
+		free_bootmem(lmb.memory.region[i].base,
 			     lmb_size_bytes(&lmb.memory, i));
 
 	/* reserve the sections we're already using */
 	for (i=0; i < lmb.reserved.cnt; i++)
-		reserve_bootmem(lmb_start_pfn(&lmb.reserved, i),
+		reserve_bootmem(lmb.reserved.region[i].base,
 				lmb_size_bytes(&lmb.reserved, i));
 
 	for (i=0; i < lmb.memory.cnt; i++)
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index 4ada15111af0..ad1017da8656 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -134,7 +134,8 @@ static void rpadlpar_claim_one_bus(struct pci_bus *b)
 static int pci_add_secondary_bus(struct device_node *dn,
 		struct pci_dev *bridge_dev)
 {
-	struct pci_controller *hose = dn->phb;
+	struct pci_dn *pdn = dn->data;
+	struct pci_controller *hose = pdn->phb;
 	struct pci_bus *child;
 	u8 sec_busno;
 
@@ -159,7 +160,7 @@ static int pci_add_secondary_bus(struct device_node *dn,
 	if (hose->last_busno < child->number)
 		hose->last_busno = child->number;
 
-	dn->bussubno = child->number;
+	pdn->bussubno = child->number;
 
 	/* ioremap() for child bus, which may or may not succeed */
 	remap_bus_range(child);
@@ -183,11 +184,12 @@ static struct pci_dev *dlpar_find_new_dev(struct pci_bus *parent,
 
 static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn)
 {
-	struct pci_controller *hose = dn->phb;
+	struct pci_dn *pdn = dn->data;
+	struct pci_controller *hose = pdn->phb;
 	struct pci_dev *dev = NULL;
 
 	/* Scan phb bus for EADS device, adding new one to bus->devices */
-	if (!pci_scan_single_device(hose->bus, dn->devfn)) {
+	if (!pci_scan_single_device(hose->bus, pdn->devfn)) {
 		printk(KERN_ERR "%s: found no device on bus\n", __FUNCTION__);
 		return NULL;
 	}
@@ -269,6 +271,7 @@ static int dlpar_remove_root_bus(struct pci_controller *phb)
 static int dlpar_remove_phb(char *drc_name, struct device_node *dn)
 {
 	struct slot *slot;
+	struct pci_dn *pdn;
 	int rc = 0;
 
 	if (!rpaphp_find_pci_bus(dn))
@@ -285,12 +288,13 @@ static int dlpar_remove_phb(char *drc_name, struct device_node *dn)
 		}
 	}
 
-	BUG_ON(!dn->phb);
-	rc = dlpar_remove_root_bus(dn->phb);
+	pdn = dn->data;
+	BUG_ON(!pdn || !pdn->phb);
+	rc = dlpar_remove_root_bus(pdn->phb);
 	if (rc < 0)
 		return rc;
 
-	dn->phb = NULL;
+	pdn->phb = NULL;
 
 	return 0;
 }
@@ -299,7 +303,7 @@ static int dlpar_add_phb(char *drc_name, struct device_node *dn)
 {
 	struct pci_controller *phb;
 
-	if (dn->phb) {
+	if (PCI_DN(dn)->phb) {
 		/* PHB already exists */
 		return -EINVAL;
 	}
diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index 17a0279ebcb9..49e4d10a6488 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -51,10 +51,12 @@ static struct pci_bus *find_bus_among_children(struct pci_bus *bus,
 
 struct pci_bus *rpaphp_find_pci_bus(struct device_node *dn)
 {
-	if (!dn->phb || !dn->phb->bus)
+	struct pci_dn *pdn = dn->data;
+
+	if (!pdn  || !pdn->phb || !pdn->phb->bus)
 		return NULL;
 
-	return find_bus_among_children(dn->phb->bus, dn);
+	return find_bus_among_children(pdn->phb->bus, dn);
 }
 EXPORT_SYMBOL_GPL(rpaphp_find_pci_bus);
 
@@ -229,7 +231,7 @@ rpaphp_pci_config_slot(struct pci_bus *bus)
 	if (!dn || !dn->child)
 		return NULL;
 
-	slotno = PCI_SLOT(dn->child->devfn);
+	slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
 
 	/* pci_scan_slot should find all children */
 	num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index 42a6591e863f..611922c0b22f 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -363,7 +363,7 @@ static void __init offb_init_nodriver(struct device_node *dp)
 		address = (u_long) dp->addrs[i].address;
 
 #ifdef CONFIG_PPC64
-		address += dp->phb->pci_mem_offset;
+		address += ((struct pci_dn *)dp->data)->phb->pci_mem_offset;
 #endif
 
 		/* kludge for valkyrie */
diff --git a/include/asm-powerpc/8253pit.h b/include/asm-powerpc/8253pit.h
index 862708a749b0..b70d6e53b303 100644
--- a/include/asm-powerpc/8253pit.h
+++ b/include/asm-powerpc/8253pit.h
@@ -1,10 +1,10 @@
+#ifndef _ASM_POWERPC_8253PIT_H
+#define _ASM_POWERPC_8253PIT_H
+
 /*
  * 8253/8254 Programmable Interval Timer
  */
 
-#ifndef _8253PIT_H
-#define _8253PIT_H
-
 #define PIT_TICK_RATE	1193182UL
 
-#endif
+#endif	/* _ASM_POWERPC_8253PIT_H */
diff --git a/include/asm-powerpc/agp.h b/include/asm-powerpc/agp.h
index ca9e423307f4..885b4631a6cf 100644
--- a/include/asm-powerpc/agp.h
+++ b/include/asm-powerpc/agp.h
@@ -1,10 +1,8 @@
-#ifndef AGP_H
-#define AGP_H 1
+#ifndef _ASM_POWERPC_AGP_H
+#define _ASM_POWERPC_AGP_H
 
 #include <asm/io.h>
 
-/* nothing much needed here */
-
 #define map_page_into_agp(page)
 #define unmap_page_from_agp(page)
 #define flush_agp_mappings()
@@ -20,4 +18,4 @@
 #define free_gatt_pages(table, order)	\
 	free_pages((unsigned long)(table), (order))
 
-#endif
+#endif	/* _ASM_POWERPC_AGP_H */
diff --git a/include/asm-powerpc/bugs.h b/include/asm-powerpc/bugs.h
index 310187d0e33a..42fdb73e3068 100644
--- a/include/asm-powerpc/bugs.h
+++ b/include/asm-powerpc/bugs.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_BUGS_H
-#define _POWERPC_BUGS_H
+#ifndef _ASM_POWERPC_BUGS_H
+#define _ASM_POWERPC_BUGS_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -13,6 +13,6 @@
  * architecture-dependent bugs.
  */
 
-extern void check_bugs(void);
+static inline void check_bugs(void) { }
 
-#endif /* _POWERPC_BUGS_H */
+#endif	/* _ASM_POWERPC_BUGS_H */
diff --git a/include/asm-powerpc/errno.h b/include/asm-powerpc/errno.h
index 19f20bd41ae6..8c145fd17d86 100644
--- a/include/asm-powerpc/errno.h
+++ b/include/asm-powerpc/errno.h
@@ -1,5 +1,5 @@
-#ifndef _PPC_ERRNO_H
-#define _PPC_ERRNO_H
+#ifndef _ASM_POWERPC_ERRNO_H
+#define _ASM_POWERPC_ERRNO_H
 
 #include <asm-generic/errno.h>
 
@@ -8,4 +8,4 @@
 
 #define _LAST_ERRNO	516
 
-#endif
+#endif	/* _ASM_POWERPC_ERRNO_H */
diff --git a/include/asm-powerpc/ioctl.h b/include/asm-powerpc/ioctl.h
index 93c6acfdd0fd..8eb99848c402 100644
--- a/include/asm-powerpc/ioctl.h
+++ b/include/asm-powerpc/ioctl.h
@@ -1,5 +1,5 @@
-#ifndef _PPC_IOCTL_H
-#define _PPC_IOCTL_H
+#ifndef _ASM_POWERPC_IOCTL_H
+#define _ASM_POWERPC_IOCTL_H
 
 
 /*
@@ -66,4 +66,4 @@ extern unsigned int __invalid_size_argument_for_IOC;
 #define IOCSIZE_MASK	(_IOC_SIZEMASK << _IOC_SIZESHIFT)
 #define IOCSIZE_SHIFT	(_IOC_SIZESHIFT)
 
-#endif
+#endif	/* _ASM_POWERPC_IOCTL_H */
diff --git a/include/asm-powerpc/ioctls.h b/include/asm-powerpc/ioctls.h
index f5b7f2b055e7..5b94ff489b8b 100644
--- a/include/asm-powerpc/ioctls.h
+++ b/include/asm-powerpc/ioctls.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_PPC_IOCTLS_H
-#define _ASM_PPC_IOCTLS_H
+#ifndef _ASM_POWERPC_IOCTLS_H
+#define _ASM_POWERPC_IOCTLS_H
 
 #include <asm/ioctl.h>
 
@@ -104,4 +104,4 @@
 #define TIOCMIWAIT	0x545C	/* wait for a change on serial input line(s) */
 #define TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
 
-#endif /* _ASM_PPC_IOCTLS_H */
+#endif	/* _ASM_POWERPC_IOCTLS_H */
diff --git a/include/asm-powerpc/linkage.h b/include/asm-powerpc/linkage.h
index 291c2d01c44f..e1c4ac1cc4ba 100644
--- a/include/asm-powerpc/linkage.h
+++ b/include/asm-powerpc/linkage.h
@@ -1,6 +1,6 @@
-#ifndef __ASM_LINKAGE_H
-#define __ASM_LINKAGE_H
+#ifndef _ASM_POWERPC_LINKAGE_H
+#define _ASM_POWERPC_LINKAGE_H
 
 /* Nothing to see here... */
 
-#endif
+#endif	/* _ASM_POWERPC_LINKAGE_H */
diff --git a/include/asm-powerpc/mc146818rtc.h b/include/asm-powerpc/mc146818rtc.h
index a5619a2a1393..f2741c8b59a1 100644
--- a/include/asm-powerpc/mc146818rtc.h
+++ b/include/asm-powerpc/mc146818rtc.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_MC146818RTC_H
-#define _POWERPC_MC146818RTC_H
+#ifndef _ASM_POWERPC_MC146818RTC_H
+#define _ASM_POWERPC_MC146818RTC_H
 
 /*
  * Machine dependent access functions for RTC registers.
@@ -33,4 +33,4 @@ outb_p((val),RTC_PORT(1)); \
 })
 
 #endif	/* __KERNEL__ */
-#endif	/* _POWERPC_MC146818RTC_H */
+#endif	/* _ASM_POWERPC_MC146818RTC_H */
diff --git a/include/asm-powerpc/mman.h b/include/asm-powerpc/mman.h
index f2d55988d749..f5e5342fcac5 100644
--- a/include/asm-powerpc/mman.h
+++ b/include/asm-powerpc/mman.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_MMAN_H
-#define _POWERPC_MMAN_H
+#ifndef _ASM_POWERPC_MMAN_H
+#define _ASM_POWERPC_MMAN_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -49,4 +49,4 @@
 #define MAP_ANON	MAP_ANONYMOUS
 #define MAP_FILE	0
 
-#endif /* _POWERPC_MMAN_H */
+#endif	/* _ASM_POWERPC_MMAN_H */
diff --git a/include/asm-powerpc/module.h b/include/asm-powerpc/module.h
index 4438f4fd6524..7ecd05e03051 100644
--- a/include/asm-powerpc/module.h
+++ b/include/asm-powerpc/module.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_MODULE_H
-#define _POWERPC_MODULE_H
+#ifndef _ASM_POWERPC_MODULE_H
+#define _ASM_POWERPC_MODULE_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -74,4 +74,4 @@ struct exception_table_entry;
 void sort_ex_table(struct exception_table_entry *start,
 		   struct exception_table_entry *finish);
 
-#endif /* _POWERPC_MODULE_H */
+#endif	/* _ASM_POWERPC_MODULE_H */
diff --git a/include/asm-ppc/msgbuf.h b/include/asm-powerpc/msgbuf.h
similarity index 64%
rename from include/asm-ppc/msgbuf.h
rename to include/asm-powerpc/msgbuf.h
index 1053452a9376..dd76743c7537 100644
--- a/include/asm-ppc/msgbuf.h
+++ b/include/asm-powerpc/msgbuf.h
@@ -1,17 +1,25 @@
-#ifndef _PPC_MSGBUF_H
-#define _PPC_MSGBUF_H
+#ifndef _ASM_POWERPC_MSGBUF_H
+#define _ASM_POWERPC_MSGBUF_H
 
 /*
- * The msqid64_ds structure for the PPC architecture.
+ * The msqid64_ds structure for the PowerPC architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
  */
 
 struct msqid64_ds {
 	struct ipc64_perm msg_perm;
+#ifndef __powerpc64__
 	unsigned int	__unused1;
+#endif
 	__kernel_time_t msg_stime;	/* last msgsnd time */
+#ifndef __powerpc64__
 	unsigned int	__unused2;
+#endif
 	__kernel_time_t msg_rtime;	/* last msgrcv time */
+#ifndef __powerpc64__
 	unsigned int	__unused3;
+#endif
 	__kernel_time_t msg_ctime;	/* last change time */
 	unsigned long  msg_cbytes;	/* current number of bytes on queue */
 	unsigned long  msg_qnum;	/* number of messages in queue */
@@ -22,4 +30,4 @@ struct msqid64_ds {
 	unsigned long  __unused5;
 };
 
-#endif /* _PPC_MSGBUF_H */
+#endif	/* _ASM_POWERPC_MSGBUF_H */
diff --git a/include/asm-powerpc/namei.h b/include/asm-powerpc/namei.h
index 29c9ec832133..657443474a6a 100644
--- a/include/asm-powerpc/namei.h
+++ b/include/asm-powerpc/namei.h
@@ -1,14 +1,14 @@
+#ifndef _ASM_POWERPC_NAMEI_H
+#define _ASM_POWERPC_NAMEI_H
+
+#ifdef __KERNEL__
+
 /*
- * include/asm-ppc/namei.h
  * Adapted from include/asm-alpha/namei.h
  *
  * Included from fs/namei.c
  */
 
-#ifdef __KERNEL__
-#ifndef __PPC_NAMEI_H
-#define __PPC_NAMEI_H
-
 /* This dummy routine maybe changed to something useful
  * for /usr/gnemul/ emulation stuff.
  * Look at asm-sparc/namei.h for details.
@@ -16,5 +16,5 @@
 
 #define __emul_prefix() NULL
 
-#endif /* __PPC_NAMEI_H */
-#endif /* __KERNEL__ */
+#endif	/* __KERNEL__ */
+#endif	/* _ASM_POWERPC_NAMEI_H */
diff --git a/include/asm-ppc/param.h b/include/asm-powerpc/param.h
similarity index 70%
rename from include/asm-ppc/param.h
rename to include/asm-powerpc/param.h
index 6198b1657a45..bdc724f70884 100644
--- a/include/asm-ppc/param.h
+++ b/include/asm-powerpc/param.h
@@ -1,10 +1,10 @@
-#ifndef _ASM_PPC_PARAM_H
-#define _ASM_PPC_PARAM_H
+#ifndef _ASM_POWERPC_PARAM_H
+#define _ASM_POWERPC_PARAM_H
 
 #include <linux/config.h>
 
 #ifdef __KERNEL__
-#define HZ		CONFIG_HZ	/* internal timer frequency */
+#define HZ		CONFIG_HZ	/* internal kernel timer frequency */
 #define USER_HZ		100		/* for user interfaces in "ticks" */
 #define CLOCKS_PER_SEC	(USER_HZ)	/* frequency at which times() counts */
 #endif /* __KERNEL__ */
@@ -21,4 +21,4 @@
 
 #define MAXHOSTNAMELEN	64	/* max length of hostname */
 
-#endif
+#endif	/* _ASM_POWERPC_PARAM_H */
diff --git a/include/asm-powerpc/poll.h b/include/asm-powerpc/poll.h
index be5024913c62..edd2054da86b 100644
--- a/include/asm-powerpc/poll.h
+++ b/include/asm-powerpc/poll.h
@@ -1,5 +1,5 @@
-#ifndef __PPC_POLL_H
-#define __PPC_POLL_H
+#ifndef _ASM_POWERPC_POLL_H
+#define _ASM_POWERPC_POLL_H
 
 #define POLLIN		0x0001
 #define POLLPRI		0x0002
@@ -20,4 +20,4 @@ struct pollfd {
 	short revents;
 };
 
-#endif
+#endif	/* _ASM_POWERPC_POLL_H */
diff --git a/include/asm-powerpc/sembuf.h b/include/asm-powerpc/sembuf.h
index c98fc18fe805..99a41938ae3d 100644
--- a/include/asm-powerpc/sembuf.h
+++ b/include/asm-powerpc/sembuf.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SEMBUF_H
-#define _POWERPC_SEMBUF_H
+#ifndef _ASM_POWERPC_SEMBUF_H
+#define _ASM_POWERPC_SEMBUF_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -33,4 +33,4 @@ struct semid64_ds {
 	unsigned long	__unused4;
 };
 
-#endif /* _POWERPC_SEMBUF_H */
+#endif	/* _ASM_POWERPC_SEMBUF_H */
diff --git a/include/asm-powerpc/setup.h b/include/asm-powerpc/setup.h
new file mode 100644
index 000000000000..3d9740aae018
--- /dev/null
+++ b/include/asm-powerpc/setup.h
@@ -0,0 +1,9 @@
+#ifndef _ASM_POWERPC_SETUP_H
+#define _ASM_POWERPC_SETUP_H
+
+#ifdef __KERNEL__
+
+#define COMMAND_LINE_SIZE	512
+
+#endif	/* __KERNEL__ */
+#endif	/* _ASM_POWERPC_SETUP_H */
diff --git a/include/asm-powerpc/shmbuf.h b/include/asm-powerpc/shmbuf.h
index 29632db3b178..8efa39698b6c 100644
--- a/include/asm-powerpc/shmbuf.h
+++ b/include/asm-powerpc/shmbuf.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SHMBUF_H
-#define _POWERPC_SHMBUF_H
+#ifndef _ASM_POWERPC_SHMBUF_H
+#define _ASM_POWERPC_SHMBUF_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -21,19 +21,19 @@
 
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused1;
 #endif
 	__kernel_time_t		shm_atime;	/* last attach time */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused2;
 #endif
 	__kernel_time_t		shm_dtime;	/* last detach time */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused3;
 #endif
 	__kernel_time_t		shm_ctime;	/* last change time */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused4;
 #endif
 	size_t			shm_segsz;	/* size of segment (bytes) */
@@ -56,4 +56,4 @@ struct shminfo64 {
 	unsigned long	__unused4;
 };
 
-#endif /* _POWERPC_SHMBUF_H */
+#endif	/* _ASM_POWERPC_SHMBUF_H */
diff --git a/include/asm-powerpc/shmparam.h b/include/asm-powerpc/shmparam.h
index d6250602ae64..5cda42a6d39e 100644
--- a/include/asm-powerpc/shmparam.h
+++ b/include/asm-powerpc/shmparam.h
@@ -1,6 +1,6 @@
-#ifndef _PPC_SHMPARAM_H
-#define _PPC_SHMPARAM_H
+#ifndef _ASM_POWERPC_SHMPARAM_H
+#define _ASM_POWERPC_SHMPARAM_H
 
 #define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
 
-#endif /* _PPC_SHMPARAM_H */
+#endif	/* _ASM_POWERPC_SHMPARAM_H */
diff --git a/include/asm-powerpc/siginfo.h b/include/asm-powerpc/siginfo.h
index ae70b8010b19..538ea8ef509b 100644
--- a/include/asm-powerpc/siginfo.h
+++ b/include/asm-powerpc/siginfo.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SIGINFO_H
-#define _POWERPC_SIGINFO_H
+#ifndef _ASM_POWERPC_SIGINFO_H
+#define _ASM_POWERPC_SIGINFO_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -15,4 +15,4 @@
 
 #include <asm-generic/siginfo.h>
 
-#endif /* _POWERPC_SIGINFO_H */
+#endif	/* _ASM_POWERPC_SIGINFO_H */
diff --git a/include/asm-powerpc/socket.h b/include/asm-powerpc/socket.h
index 51a0cf5ee9f0..e4b8177d4acc 100644
--- a/include/asm-powerpc/socket.h
+++ b/include/asm-powerpc/socket.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SOCKET_H
-#define _POWERPC_SOCKET_H
+#ifndef _ASM_POWERPC_SOCKET_H
+#define _ASM_POWERPC_SOCKET_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -56,4 +56,4 @@
 
 #define SO_PEERSEC		31
 
-#endif /* _POWERPC_SOCKET_H */
+#endif	/* _ASM_POWERPC_SOCKET_H */
diff --git a/include/asm-powerpc/sockios.h b/include/asm-powerpc/sockios.h
index ef7ff664167e..590078d8ed28 100644
--- a/include/asm-powerpc/sockios.h
+++ b/include/asm-powerpc/sockios.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SOCKIOS_H
-#define _POWERPC_SOCKIOS_H
+#ifndef _ASM_POWERPC_SOCKIOS_H
+#define _ASM_POWERPC_SOCKIOS_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -16,4 +16,4 @@
 #define SIOCATMARK	0x8905
 #define SIOCGSTAMP	0x8906		/* Get stamp */
 
-#endif /* _POWERPC_SOCKIOS_H */
+#endif	/* _ASM_POWERPC_SOCKIOS_H */
diff --git a/include/asm-powerpc/string.h b/include/asm-powerpc/string.h
index 225575997392..8606a696c088 100644
--- a/include/asm-powerpc/string.h
+++ b/include/asm-powerpc/string.h
@@ -1,5 +1,5 @@
-#ifndef _PPC_STRING_H_
-#define _PPC_STRING_H_
+#ifndef _ASM_POWERPC_STRING_H
+#define _ASM_POWERPC_STRING_H
 
 #ifdef __KERNEL__
 
@@ -29,4 +29,4 @@ extern void * memchr(const void *,int,__kernel_size_t);
 
 #endif /* __KERNEL__ */
 
-#endif
+#endif	/* _ASM_POWERPC_STRING_H */
diff --git a/include/asm-powerpc/termbits.h b/include/asm-powerpc/termbits.h
index 2c5bf85a8c3c..ebf6055481dc 100644
--- a/include/asm-powerpc/termbits.h
+++ b/include/asm-powerpc/termbits.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_TERMBITS_H
-#define _POWERPC_TERMBITS_H
+#ifndef _ASM_POWERPC_TERMBITS_H
+#define _ASM_POWERPC_TERMBITS_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -188,4 +188,4 @@ struct termios {
 #define	TCSADRAIN	1
 #define	TCSAFLUSH	2
 
-#endif /* _POWERPC_TERMBITS_H */
+#endif	/* _ASM_POWERPC_TERMBITS_H */
diff --git a/include/asm-powerpc/termios.h b/include/asm-powerpc/termios.h
index 237533bb0e9f..c5b8e5358f83 100644
--- a/include/asm-powerpc/termios.h
+++ b/include/asm-powerpc/termios.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_TERMIOS_H
-#define _POWERPC_TERMIOS_H
+#ifndef _ASM_POWERPC_TERMIOS_H
+#define _ASM_POWERPC_TERMIOS_H
 
 /*
  * Liberally adapted from alpha/termios.h.  In particular, the c_cc[]
@@ -233,4 +233,4 @@ struct termio {
 
 #endif	/* __KERNEL__ */
 
-#endif	/* _POWERPC_TERMIOS_H */
+#endif	/* _ASM_POWERPC_TERMIOS_H */
diff --git a/include/asm-ppc/timex.h b/include/asm-powerpc/timex.h
similarity index 53%
rename from include/asm-ppc/timex.h
rename to include/asm-powerpc/timex.h
index cffc8712077c..51c5b316be55 100644
--- a/include/asm-ppc/timex.h
+++ b/include/asm-powerpc/timex.h
@@ -1,11 +1,11 @@
-/*
- * include/asm-ppc/timex.h
- *
- * ppc architecture timex specifications
- */
+#ifndef _ASM_POWERPC_TIMEX_H
+#define _ASM_POWERPC_TIMEX_H
+
 #ifdef __KERNEL__
-#ifndef _ASMppc_TIMEX_H
-#define _ASMppc_TIMEX_H
+
+/*
+ * PowerPC architecture timex specifications
+ */
 
 #include <linux/config.h>
 #include <asm/cputable.h>
@@ -14,14 +14,21 @@
 
 typedef unsigned long cycles_t;
 
-/*
- * For the "cycle" counter we use the timebase lower half.
- * Currently only used on SMP.
- */
-
 static inline cycles_t get_cycles(void)
 {
-	cycles_t ret = 0;
+	cycles_t ret;
+
+#ifdef __powerpc64__
+
+	__asm__ __volatile__("mftb %0" : "=r" (ret) : );
+
+#else
+	/*
+	 * For the "cycle" counter we use the timebase lower half.
+	 * Currently only used on SMP.
+	 */
+
+	ret = 0;
 
 	__asm__ __volatile__(
 		"98:	mftb %0\n"
@@ -33,8 +40,10 @@ static inline cycles_t get_cycles(void)
 		"	.long 99b\n"
 		".previous"
 		: "=r" (ret) : "i" (CPU_FTR_601));
+#endif
+
 	return ret;
 }
 
-#endif
-#endif /* __KERNEL__ */
+#endif	/* __KERNEL__ */
+#endif	/* _ASM_POWERPC_TIMEX_H */
diff --git a/include/asm-ppc64/topology.h b/include/asm-powerpc/topology.h
similarity index 92%
rename from include/asm-ppc64/topology.h
rename to include/asm-powerpc/topology.h
index 1e9b19073230..2512e3836bf4 100644
--- a/include/asm-ppc64/topology.h
+++ b/include/asm-powerpc/topology.h
@@ -1,11 +1,12 @@
-#ifndef _ASM_PPC64_TOPOLOGY_H
-#define _ASM_PPC64_TOPOLOGY_H
+#ifndef _ASM_POWERPC_TOPOLOGY_H
+#define _ASM_POWERPC_TOPOLOGY_H
 
 #include <linux/config.h>
-#include <asm/mmzone.h>
 
 #ifdef CONFIG_NUMA
 
+#include <asm/mmzone.h>
+
 static inline int cpu_to_node(int cpu)
 {
 	int node;
@@ -66,4 +67,4 @@ static inline int node_to_first_cpu(int node)
 
 #endif /* CONFIG_NUMA */
 
-#endif /* _ASM_PPC64_TOPOLOGY_H */
+#endif	/* _ASM_POWERPC_TOPOLOGY_H */
diff --git a/include/asm-powerpc/unaligned.h b/include/asm-powerpc/unaligned.h
index 45520d9b85d1..6c95dfa2652f 100644
--- a/include/asm-powerpc/unaligned.h
+++ b/include/asm-powerpc/unaligned.h
@@ -1,6 +1,7 @@
+#ifndef _ASM_POWERPC_UNALIGNED_H
+#define _ASM_POWERPC_UNALIGNED_H
+
 #ifdef __KERNEL__
-#ifndef __PPC_UNALIGNED_H
-#define __PPC_UNALIGNED_H
 
 /*
  * The PowerPC can do unaligned accesses itself in big endian mode.
@@ -14,5 +15,5 @@
 
 #define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
 
-#endif
-#endif /* __KERNEL__ */
+#endif	/* __KERNEL__ */
+#endif	/* _ASM_POWERPC_UNALIGNED_H */
diff --git a/include/asm-ppc/user.h b/include/asm-powerpc/user.h
similarity index 92%
rename from include/asm-ppc/user.h
rename to include/asm-powerpc/user.h
index d662b2151370..e59ade4b3dfb 100644
--- a/include/asm-ppc/user.h
+++ b/include/asm-powerpc/user.h
@@ -1,13 +1,14 @@
+#ifndef _ASM_POWERPC_USER_H
+#define _ASM_POWERPC_USER_H
+
 #ifdef __KERNEL__
-#ifndef _PPC_USER_H
-#define _PPC_USER_H
 
-/* Adapted from <asm-alpha/user.h> */
-
-#include <linux/ptrace.h>
+#include <asm/ptrace.h>
 #include <asm/page.h>
 
 /*
+ * Adapted from <asm-alpha/user.h>
+ *
  * Core file format: The core file is written in such a way that gdb
  * can understand it and provide useful information to the user (under
  * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
@@ -50,5 +51,5 @@ struct user {
 #define HOST_DATA_START_ADDR	(u.start_data)
 #define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
 
-#endif /* _PPC_USER_H */
-#endif /* __KERNEL__ */
+#endif	/* __KERNEL__ */
+#endif	/* _ASM_POWERPC_USER_H */
diff --git a/include/asm-ppc/setup.h b/include/asm-ppc/setup.h
deleted file mode 100644
index d2d19ee103df..000000000000
--- a/include/asm-ppc/setup.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_SETUP_H
-#define _PPC_SETUP_H
-
-#define m68k_num_memory num_memory
-#define m68k_memory memory
-
-#include <asm-m68k/setup.h>
-/* We have a bigger command line buffer. */
-#undef COMMAND_LINE_SIZE
-#define COMMAND_LINE_SIZE	512
-
-#endif /* _PPC_SETUP_H */
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/topology.h b/include/asm-ppc/topology.h
deleted file mode 100644
index 6a029bbba6e1..000000000000
--- a/include/asm-ppc/topology.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_PPC_TOPOLOGY_H
-#define _ASM_PPC_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* _ASM_PPC_TOPOLOGY_H */
diff --git a/include/asm-ppc64/msgbuf.h b/include/asm-ppc64/msgbuf.h
deleted file mode 100644
index 31c1cbf133cc..000000000000
--- a/include/asm-ppc64/msgbuf.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef _PPC64_MSGBUF_H
-#define _PPC64_MSGBUF_H
-
-/* 
- * The msqid64_ds structure for the PPC architecture.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-struct msqid64_ds {
-	struct ipc64_perm msg_perm;
-	__kernel_time_t msg_stime;	/* last msgsnd time */
-	__kernel_time_t msg_rtime;	/* last msgrcv time */
-	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned long  msg_cbytes;	/* current number of bytes on queue */
-	unsigned long  msg_qnum;	/* number of messages in queue */
-	unsigned long  msg_qbytes;	/* max number of bytes on queue */
-	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
-	__kernel_pid_t msg_lrpid;	/* last receive pid */
-	unsigned long  __unused1;
-	unsigned long  __unused2;
-};
-
-#endif /* _PPC64_MSGBUF_H */
diff --git a/include/asm-ppc64/param.h b/include/asm-ppc64/param.h
deleted file mode 100644
index 76c212d475b3..000000000000
--- a/include/asm-ppc64/param.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef _ASM_PPC64_PARAM_H
-#define _ASM_PPC64_PARAM_H
-
-#include <linux/config.h>
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifdef __KERNEL__
-# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
-# define USER_HZ	100		/* .. some user interfaces are in "ticks" */
-# define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE	4096
-
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */
-
-#endif /* _ASM_PPC64_PARAM_H */
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
index c4f9023ea5ed..6b4a5b1f695e 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-ppc64/pci-bridge.h
@@ -48,19 +48,52 @@ struct pci_controller {
 	unsigned long dma_window_size;
 };
 
+/*
+ * PCI stuff, for nodes representing PCI devices, pointed to
+ * by device_node->data.
+ */
+struct pci_controller;
+struct iommu_table;
+
+struct pci_dn {
+	int	busno;			/* for pci devices */
+	int	bussubno;		/* for pci devices */
+	int	devfn;			/* for pci devices */
+	int	eeh_mode;		/* See eeh.h for possible EEH_MODEs */
+	int	eeh_config_addr;
+	int	eeh_capable;		/* from firmware */
+	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 */
+
+	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 */
+	struct	pci_dev *pcidev;	/* back-pointer to the pci device */
+	struct	device_node *node;	/* back-pointer to the device_node */
+	u32	config_space[16];	/* saved PCI config space */
+};
+
+/* Get the pointer to a device_node's pci_dn */
+#define PCI_DN(dn)	((struct pci_dn *) (dn)->data)
+
 struct device_node *fetch_dev_dn(struct pci_dev *dev);
 
-/* Get a device_node from a pci_dev.  This code must be fast except in the case
- * where the sysdata is incorrect and needs to be fixed up (hopefully just once)
+/* Get a device_node from a pci_dev.  This code must be fast except
+ * in the case where the sysdata is incorrect and needs to be fixed
+ * up (this will only happen once).
+ * In this case the sysdata will have been inherited from a PCI host
+ * bridge or a PCI-PCI bridge further up the tree, so it will point
+ * to a valid struct pci_dn, just not the one we want.
  */
 static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev)
 {
 	struct device_node *dn = dev->sysdata;
+	struct pci_dn *pdn = dn->data;
 
-	if (dn->devfn == dev->devfn && dn->busno == dev->bus->number)
+	if (pdn && pdn->devfn == dev->devfn && pdn->busno == dev->bus->number)
 		return dn;	/* fast path.  sysdata is good */
-	else
-		return fetch_dev_dn(dev);
+	return fetch_dev_dn(dev);
 }
 
 static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
@@ -83,7 +116,7 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
 	struct device_node *busdn = bus->sysdata;
 
 	BUG_ON(busdn == NULL);
-	return busdn->phb;
+	return PCI_DN(busdn)->phb;
 }
 
 #endif
diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h
index dc5330b39509..c02ec1d6b909 100644
--- a/include/asm-ppc64/prom.h
+++ b/include/asm-ppc64/prom.h
@@ -116,14 +116,6 @@ struct property {
 	struct property *next;
 };
 
-/* NOTE: the device_node contains PCI specific info for pci devices.
- * This perhaps could be hung off the device_node with another struct,
- * but for now it is directly in the node.  The phb ptr is a good
- * indication of a real PCI node.  Other nodes leave these fields zeroed.
- */
-struct pci_controller;
-struct iommu_table;
-
 struct device_node {
 	char	*name;
 	char	*type;
@@ -135,16 +127,6 @@ struct device_node {
 	struct	interrupt_info *intrs;
 	char	*full_name;
 
-	/* PCI stuff probably doesn't belong here */
-	int	busno;			/* for pci devices */
-	int	bussubno;		/* for pci devices */
-	int	devfn;			/* for pci devices */
-	int	eeh_mode;		/* See eeh.h for possible EEH_MODEs */
-	int	eeh_config_addr;
-	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 */
-
 	struct	property *properties;
 	struct	device_node *parent;
 	struct	device_node *child;
@@ -154,6 +136,7 @@ struct device_node {
 	struct  proc_dir_entry *pde;	/* this node's proc directory */
 	struct  kref kref;
 	unsigned long _flags;
+	void	*data;
 };
 
 extern struct device_node *of_chosen;
diff --git a/include/asm-ppc64/segment.h b/include/asm-ppc64/segment.h
deleted file mode 100644
index d80fb68cc79e..000000000000
--- a/include/asm-ppc64/segment.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __PPC64_SEGMENT_H
-#define __PPC64_SEGMENT_H
-
-/* Only here because we have some old header files that expect it.. */
-
-#endif /* __PPC64_SEGMENT_H */
diff --git a/include/asm-ppc64/setup.h b/include/asm-ppc64/setup.h
deleted file mode 100644
index b257b8348c73..000000000000
--- a/include/asm-ppc64/setup.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _PPC_SETUP_H
-#define _PPC_SETUP_H
-
-#define COMMAND_LINE_SIZE 512
-
-#endif /* _PPC_SETUP_H */
diff --git a/include/asm-ppc64/timex.h b/include/asm-ppc64/timex.h
deleted file mode 100644
index 8db4da4064cd..000000000000
--- a/include/asm-ppc64/timex.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * linux/include/asm-ppc/timex.h
- *
- * PPC64 architecture timex specifications
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASMPPC64_TIMEX_H
-#define _ASMPPC64_TIMEX_H
-
-#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
-
-typedef unsigned long cycles_t;
-
-static inline cycles_t get_cycles(void)
-{
-	cycles_t ret;
-
-	__asm__ __volatile__("mftb %0" : "=r" (ret) : );
-	return ret;
-}
-
-#endif
diff --git a/include/asm-ppc64/user.h b/include/asm-ppc64/user.h
deleted file mode 100644
index d7d6554a421f..000000000000
--- a/include/asm-ppc64/user.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef _PPC_USER_H
-#define _PPC_USER_H
-
-/* Adapted from <asm-alpha/user.h> 
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <asm/ptrace.h>
-#include <asm/page.h>
-
-/*
- * Core file format: The core file is written in such a way that gdb
- * can understand it and provide useful information to the user (under
- * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
- * are as follows:
- *
- *  upage: 1 page consisting of a user struct that tells gdb
- *	what is present in the file.  Directly after this is a
- *	copy of the task_struct, which is currently not used by gdb,
- *	but it may come in handy at some point.  All of the registers
- *	are stored as part of the upage.  The upage should always be
- *	only one page long.
- *  data: The data segment follows next.  We use current->end_text to
- *	current->brk to pick up all of the user variables, plus any memory
- *	that may have been sbrk'ed.  No attempt is made to determine if a
- *	page is demand-zero or if a page is totally unused, we just cover
- *	the entire range.  All of the addresses are rounded in such a way
- *	that an integral number of pages is written.
- *  stack: We need the stack information in order to get a meaningful
- *	backtrace.  We need to write the data from usp to
- *	current->start_stack, so we round each of these in order to be able
- *	to write an integer number of pages.
- */
-struct user {
-	struct pt_regs	regs;			/* entire machine state */
-	size_t		u_tsize;		/* text size (pages) */
-	size_t		u_dsize;		/* data size (pages) */
-	size_t		u_ssize;		/* stack size (pages) */
-	unsigned long	start_code;		/* text starting address */
-	unsigned long	start_data;		/* data starting address */
-	unsigned long	start_stack;		/* stack starting address */
-	long int	signal;			/* signal causing core dump */
-	struct regs *	u_ar0;			/* help gdb find registers */
-	unsigned long	magic;			/* identifies a core file */
-	char		u_comm[32];		/* user command name */
-};
-
-#define NBPG			PAGE_SIZE
-#define UPAGES			1
-#define HOST_TEXT_START_ADDR	(u.start_code)
-#define HOST_DATA_START_ADDR	(u.start_data)
-#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
-
-#endif /* _PPC_USER_H */