Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  mtd/m25p80: add support to parse the partitions by OF node
  of/irq: of_irq.c needs to include linux/irq.h
  of/mips: Cleanup some include directives/files.
  of/mips: Add device tree support to MIPS
  of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch
  of/device: Rework to use common platform_device_alloc() for allocating devices
  of/xsysace: Fix OF probing on little-endian systems
  of: use __be32 types for big-endian device tree data
  of/irq: remove references to NO_IRQ in drivers/of/platform.c
  of/promtree: add package-to-path support to pdt
  of/promtree: add of_pdt namespace to pdt code
  of/promtree: no longer call prom_ functions directly; use an ops structure
  of/promtree: make drivers/of/pdt.c no longer sparc-only
  sparc: break out some PROM device-tree building code out into drivers/of
  of/sparc: convert various prom_* functions to use phandle
  sparc: stop exporting openprom.h header
  powerpc, of_serial: Endianness issues setting up the serial ports
  of: MTD: Fix OF probing on little-endian systems
  of: GPIO: Fix OF probing on little-endian systems

37 files changed, 371 insertions, 351 deletions

diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 427b13b4740f..bacbd3d41ec7 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -42,11 +42,6 @@
 #include <asm/sections.h>
 #include <asm/pci-bridge.h>
 
-void __init early_init_dt_scan_chosen_arch(unsigned long node)
-{
-	/* No Microblaze specific code here */
-}
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
 	memblock_add(base, size);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 784cf822963a..46cae2b163e4 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2128,6 +2128,13 @@ config SECCOMP
 
 	  If unsure, say Y. Only embedded should say N here.
 
+config USE_OF
+	bool "Flattened Device Tree support"
+	select OF
+	select OF_FLATTREE
+	help
+	  Include support for flattened device tree machine descriptions.
+
 endmenu
 
 config LOCKDEP_SUPPORT
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index dea4aed6478f..b003ed52ed17 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -16,6 +16,11 @@
 
 #include <irq.h>
 
+static inline void irq_dispose_mapping(unsigned int virq)
+{
+	return;
+}
+
 #ifdef CONFIG_I8259
 static inline int irq_canonicalize(int irq)
 {
diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
new file mode 100644
index 000000000000..f29b862d9db3
--- /dev/null
+++ b/arch/mips/include/asm/prom.h
@@ -0,0 +1,31 @@
+/*
+ *  arch/mips/include/asm/prom.h
+ *
+ *  Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#ifndef __ASM_MIPS_PROM_H
+#define __ASM_MIPS_PROM_H
+
+#ifdef CONFIG_OF
+#include <asm/bootinfo.h>
+
+/* which is compatible with the flattened device tree (FDT) */
+#define cmd_line arcs_cmdline
+
+extern int early_init_dt_scan_memory_arch(unsigned long node,
+	const char *uname, int depth, void *data);
+
+extern int reserve_mem_mach(unsigned long addr, unsigned long size);
+extern void free_mem_mach(unsigned long addr, unsigned long size);
+
+extern void device_tree_init(void);
+#else /* CONFIG_OF */
+static inline void device_tree_init(void) { }
+#endif /* CONFIG_OF */
+
+#endif /* _ASM_MIPS_PROM_H */
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 06f848299785..80884983270d 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -96,6 +96,8 @@ obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_SPINLOCK_TEST)	+= spinlock_test.o
 
+obj-$(CONFIG_OF)		+= prom.o
+
 CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
 
 obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT)	+= 8250-platform.o
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
new file mode 100644
index 000000000000..e000b278f024
--- /dev/null
+++ b/arch/mips/kernel/prom.c
@@ -0,0 +1,112 @@
+/*
+ * MIPS support for CONFIG_OF device tree support
+ *
+ * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/bootmem.h>
+#include <linux/initrd.h>
+#include <linux/debugfs.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <asm/page.h>
+#include <asm/prom.h>
+
+int __init early_init_dt_scan_memory_arch(unsigned long node,
+					  const char *uname, int depth,
+					  void *data)
+{
+	return early_init_dt_scan_memory(node, uname, depth, data);
+}
+
+void __init early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+	return add_memory_region(base, size, BOOT_MEM_RAM);
+}
+
+int __init reserve_mem_mach(unsigned long addr, unsigned long size)
+{
+	return reserve_bootmem(addr, size, BOOTMEM_DEFAULT);
+}
+
+void __init free_mem_mach(unsigned long addr, unsigned long size)
+{
+	return free_bootmem(addr, size);
+}
+
+u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+{
+	return virt_to_phys(
+		__alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS))
+		);
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init early_init_dt_setup_initrd_arch(unsigned long start,
+					    unsigned long end)
+{
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
+}
+#endif
+
+/*
+ * irq_create_of_mapping - Hook to resolve OF irq specifier into a Linux irq#
+ *
+ * Currently the mapping mechanism is trivial; simple flat hwirq numbers are
+ * mapped 1:1 onto Linux irq numbers.  Cascaded irq controllers are not
+ * supported.
+ */
+unsigned int irq_create_of_mapping(struct device_node *controller,
+				   const u32 *intspec, unsigned int intsize)
+{
+	return intspec[0];
+}
+EXPORT_SYMBOL_GPL(irq_create_of_mapping);
+
+void __init early_init_devtree(void *params)
+{
+	/* Setup flat device-tree pointer */
+	initial_boot_params = params;
+
+	/* Retrieve various informations from the /chosen node of the
+	 * device-tree, including the platform type, initrd location and
+	 * size, and more ...
+	 */
+	of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
+
+	/* Scan memory nodes */
+	of_scan_flat_dt(early_init_dt_scan_root, NULL);
+	of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
+}
+
+void __init device_tree_init(void)
+{
+	unsigned long base, size;
+
+	if (!initial_boot_params)
+		return;
+
+	base = virt_to_phys((void *)initial_boot_params);
+	size = initial_boot_params->totalsize;
+
+	/* Before we do anything, lets reserve the dt blob */
+	reserve_mem_mach(base, size);
+
+	unflatten_device_tree();
+
+	/* free the space reserved for the dt blob */
+	free_mem_mach(base, size);
+}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 85aef3fc6716..a6b900f2962b 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -31,6 +31,7 @@
 #include <asm/setup.h>
 #include <asm/smp-ops.h>
 #include <asm/system.h>
+#include <asm/prom.h>
 
 struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly;
 
@@ -487,6 +488,7 @@ static void __init arch_mem_init(char **cmdline_p)
 	}
 
 	bootmem_init();
+	device_tree_init();
 	sparse_init();
 	paging_init();
 }
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 9b626cfffce1..f62efdfd1769 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -162,13 +162,10 @@ static int ibmebus_create_device(struct device_node *dn)
 	dev->dev.bus = &ibmebus_bus_type;
 	dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
 
-	ret = of_device_register(dev);
-	if (ret) {
-		of_device_free(dev);
-		return ret;
-	}
-
-	return 0;
+	ret = of_device_add(dev);
+	if (ret)
+		platform_device_put(dev);
+	return ret;
 }
 
 static int ibmebus_create_devices(const struct of_device_id *matches)
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index c1fd0f9658fd..c834757bebc0 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -52,14 +52,14 @@ static int __init add_legacy_port(struct device_node *np, int want_index,
 				  phys_addr_t taddr, unsigned long irq,
 				  upf_t flags, int irq_check_parent)
 {
-	const u32 *clk, *spd;
+	const __be32 *clk, *spd;
 	u32 clock = BASE_BAUD * 16;
 	int index;
 
 	/* get clock freq. if present */
 	clk = of_get_property(np, "clock-frequency", NULL);
 	if (clk && *clk)
-		clock = *clk;
+		clock = be32_to_cpup(clk);
 
 	/* get default speed if present */
 	spd = of_get_property(np, "current-speed", NULL);
@@ -109,7 +109,7 @@ static int __init add_legacy_port(struct device_node *np, int want_index,
 	legacy_serial_infos[index].taddr = taddr;
 	legacy_serial_infos[index].np = of_node_get(np);
 	legacy_serial_infos[index].clock = clock;
-	legacy_serial_infos[index].speed = spd ? *spd : 0;
+	legacy_serial_infos[index].speed = spd ? be32_to_cpup(spd) : 0;
 	legacy_serial_infos[index].irq_check_parent = irq_check_parent;
 
 	printk(KERN_DEBUG "Found legacy serial port %d for %s\n",
@@ -168,7 +168,7 @@ static int __init add_legacy_soc_port(struct device_node *np,
 static int __init add_legacy_isa_port(struct device_node *np,
 				      struct device_node *isa_brg)
 {
-	const u32 *reg;
+	const __be32 *reg;
 	const char *typep;
 	int index = -1;
 	u64 taddr;
@@ -181,7 +181,7 @@ static int __init add_legacy_isa_port(struct device_node *np,
 		return -1;
 
 	/* Verify it's an IO port, we don't support anything else */
-	if (!(reg[0] & 0x00000001))
+	if (!(be32_to_cpu(reg[0]) & 0x00000001))
 		return -1;
 
 	/* Now look for an "ibm,aix-loc" property that gives us ordering
@@ -202,7 +202,7 @@ static int __init add_legacy_isa_port(struct device_node *np,
 		taddr = 0;
 
 	/* Add port, irq will be dealt with later */
-	return add_legacy_port(np, index, UPIO_PORT, reg[1], taddr,
+	return add_legacy_port(np, index, UPIO_PORT, be32_to_cpu(reg[1]), taddr,
 			       NO_IRQ, UPF_BOOT_AUTOCONF, 0);
 
 }
@@ -251,9 +251,9 @@ static int __init add_legacy_pci_port(struct device_node *np,
 	 * we get to their "reg" property
 	 */
 	if (np != pci_dev) {
-		const u32 *reg = of_get_property(np, "reg", NULL);
-		if (reg && (*reg < 4))
-			index = lindex = *reg;
+		const __be32 *reg = of_get_property(np, "reg", NULL);
+		if (reg && (be32_to_cpup(reg) < 4))
+			index = lindex = be32_to_cpup(reg);
 	}
 
 	/* Local index means it's the Nth port in the PCI chip. Unfortunately
@@ -507,7 +507,7 @@ static int __init check_legacy_serial_console(void)
 	struct device_node *prom_stdout = NULL;
 	int i, speed = 0, offset = 0;
 	const char *name;
-	const u32 *spd;
+	const __be32 *spd;
 
 	DBG(" -> check_legacy_serial_console()\n");
 
@@ -547,7 +547,7 @@ static int __init check_legacy_serial_console(void)
 	}
 	spd = of_get_property(prom_stdout, "current-speed", NULL);
 	if (spd)
-		speed = *spd;
+		speed = be32_to_cpup(spd);
 
 	if (strcmp(name, "serial") != 0)
 		goto not_found;
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index c3c6a8857544..9e3132db718b 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -364,10 +364,15 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
 	return 0;
 }
 
-void __init early_init_dt_scan_chosen_arch(unsigned long node)
+int __init early_init_dt_scan_chosen_ppc(unsigned long node, const char *uname,
+					 int depth, void *data)
 {
 	unsigned long *lprop;
 
+	/* Use common scan routine to determine if this is the chosen node */
+	if (early_init_dt_scan_chosen(node, uname, depth, data) == 0)
+		return 0;
+
 #ifdef CONFIG_PPC64
 	/* check if iommu is forced on or off */
 	if (of_get_flat_dt_prop(node, "linux,iommu-off", NULL) != NULL)
@@ -399,6 +404,9 @@ void __init early_init_dt_scan_chosen_arch(unsigned long node)
 	if (lprop)
 		crashk_res.end = crashk_res.start + *lprop - 1;
 #endif
+
+	/* break now */
+	return 1;
 }
 
 #ifdef CONFIG_PPC_PSERIES
@@ -683,7 +691,7 @@ void __init early_init_devtree(void *params)
 	 * device-tree, including the platform type, initrd location and
 	 * size, TCE reserve, and more ...
 	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
+	of_scan_flat_dt(early_init_dt_scan_chosen_ppc, NULL);
 
 	/* Scan memory nodes and rebuild MEMBLOCKs */
 	memblock_init();
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 3e9d31401fb2..8e7bafc5dd0e 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -19,6 +19,7 @@ config SPARC
 	bool
 	default y
 	select OF
+	select OF_PROMTREE
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_ARCH_KGDB if !SMP || SPARC64
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index deeb0fba8029..3c93f08ce187 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -7,7 +7,6 @@ header-y += display7seg.h
 header-y += envctrl.h
 header-y += fbio.h
 header-y += jsflash.h
-header-y += openprom.h
 header-y += openpromio.h
 header-y += perfctr.h
 header-y += psrcompat.h
diff --git a/arch/sparc/include/asm/floppy_32.h b/arch/sparc/include/asm/floppy_32.h
index c792830636de..86666f70322e 100644
--- a/arch/sparc/include/asm/floppy_32.h
+++ b/arch/sparc/include/asm/floppy_32.h
@@ -304,7 +304,8 @@ static struct linux_prom_registers fd_regs[2];
 static int sun_floppy_init(void)
 {
 	char state[128];
-	int tnode, fd_node, num_regs;
+	phandle tnode, fd_node;
+	int num_regs;
 	struct resource r;
 
 	use_virtual_dma = 1;
diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h
index 963e1a45c35f..81cd43432dc0 100644
--- a/arch/sparc/include/asm/openprom.h
+++ b/arch/sparc/include/asm/openprom.h
@@ -11,6 +11,8 @@
 #define LINUX_OPPROM_MAGIC      0x10010407
 
 #ifndef __ASSEMBLY__
+#include <linux/of.h>
+
 /* V0 prom device operations. */
 struct linux_dev_v0_funcs {
 	int (*v0_devopen)(char *device_str);
@@ -26,7 +28,7 @@ struct linux_dev_v0_funcs {
 
 /* V2 and later prom device operations. */
 struct linux_dev_v2_funcs {
-	int (*v2_inst2pkg)(int d);	/* Convert ihandle to phandle */
+	phandle (*v2_inst2pkg)(int d);	/* Convert ihandle to phandle */
 	char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
 	void (*v2_dumb_mem_free)(char *va, unsigned sz);
 
@@ -168,12 +170,12 @@ struct linux_romvec {
 
 /* Routines for traversing the prom device tree. */
 struct linux_nodeops {
-	int (*no_nextnode)(int node);
-	int (*no_child)(int node);
-	int (*no_proplen)(int node, const char *name);
-	int (*no_getprop)(int node, const char *name, char *val);
-	int (*no_setprop)(int node, const char *name, char *val, int len);
-	char * (*no_nextprop)(int node, char *name);
+	phandle (*no_nextnode)(phandle node);
+	phandle (*no_child)(phandle node);
+	int (*no_proplen)(phandle node, const char *name);
+	int (*no_getprop)(phandle node, const char *name, char *val);
+	int (*no_setprop)(phandle node, const char *name, char *val, int len);
+	char * (*no_nextprop)(phandle node, char *name);
 };
 
 /* More fun PROM structures for device probing. */
diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h
index 33e31ce6b31f..51296a6f5005 100644
--- a/arch/sparc/include/asm/oplib_32.h
+++ b/arch/sparc/include/asm/oplib_32.h
@@ -30,7 +30,7 @@ extern unsigned int prom_rev, prom_prev;
 /* Root node of the prom device tree, this stays constant after
  * initialization is complete.
  */
-extern int prom_root_node;
+extern phandle prom_root_node;
 
 /* Pointer to prom structure containing the device tree traversal
  * and usage utility functions.  Only prom-lib should use these,
@@ -178,68 +178,68 @@ extern void prom_putsegment(int context, unsigned long virt_addr,
 /* PROM device tree traversal functions... */
 
 /* Get the child node of the given node, or zero if no child exists. */
-extern int prom_getchild(int parent_node);
+extern phandle prom_getchild(phandle parent_node);
 
 /* Get the next sibling node of the given node, or zero if no further
  * siblings exist.
  */
-extern int prom_getsibling(int node);
+extern phandle prom_getsibling(phandle node);
 
 /* Get the length, at the passed node, of the given property type.
  * Returns -1 on error (ie. no such property at this node).
  */
-extern int prom_getproplen(int thisnode, const char *property);
+extern int prom_getproplen(phandle thisnode, const char *property);
 
 /* Fetch the requested property using the given buffer.  Returns
  * the number of bytes the prom put into your buffer or -1 on error.
  */
-extern int __must_check prom_getproperty(int thisnode, const char *property,
+extern int __must_check prom_getproperty(phandle thisnode, const char *property,
 					 char *prop_buffer, int propbuf_size);
 
 /* Acquire an integer property. */
-extern int prom_getint(int node, char *property);
+extern int prom_getint(phandle node, char *property);
 
 /* Acquire an integer property, with a default value. */
-extern int prom_getintdefault(int node, char *property, int defval);
+extern int prom_getintdefault(phandle node, char *property, int defval);
 
 /* Acquire a boolean property, 0=FALSE 1=TRUE. */
-extern int prom_getbool(int node, char *prop);
+extern int prom_getbool(phandle node, char *prop);
 
 /* Acquire a string property, null string on error. */
-extern void prom_getstring(int node, char *prop, char *buf, int bufsize);
+extern void prom_getstring(phandle node, char *prop, char *buf, int bufsize);
 
 /* Does the passed node have the given "name"? YES=1 NO=0 */
-extern int prom_nodematch(int thisnode, char *name);
+extern int prom_nodematch(phandle thisnode, char *name);
 
 /* Search all siblings starting at the passed node for "name" matching
  * the given string.  Returns the node on success, zero on failure.
  */
-extern int prom_searchsiblings(int node_start, char *name);
+extern phandle prom_searchsiblings(phandle node_start, char *name);
 
 /* Return the first property type, as a string, for the given node.
  * Returns a null string on error.
  */
-extern char *prom_firstprop(int node, char *buffer);
+extern char *prom_firstprop(phandle node, char *buffer);
 
 /* Returns the next property after the passed property for the given
  * node.  Returns null string on failure.
  */
-extern char *prom_nextprop(int node, char *prev_property, char *buffer);
+extern char *prom_nextprop(phandle node, char *prev_property, char *buffer);
 
 /* Returns phandle of the path specified */
-extern int prom_finddevice(char *name);
+extern phandle prom_finddevice(char *name);
 
 /* Returns 1 if the specified node has given property. */
-extern int prom_node_has_property(int node, char *property);
+extern int prom_node_has_property(phandle node, char *property);
 
 /* Set the indicated property at the given node with the passed value.
  * Returns the number of bytes of your value that the prom took.
  */
-extern int prom_setprop(int node, const char *prop_name, char *prop_value,
+extern int prom_setprop(phandle node, const char *prop_name, char *prop_value,
 			int value_size);
 
-extern int prom_pathtoinode(char *path);
-extern int prom_inst2pkg(int);
+extern phandle prom_pathtoinode(char *path);
+extern phandle prom_inst2pkg(int);
 
 /* Dorking with Bus ranges... */
 
@@ -247,13 +247,13 @@ extern int prom_inst2pkg(int);
 extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs);
 
 /* Apply ranges of any prom node (and optionally parent node as well) to registers. */
-extern void prom_apply_generic_ranges(int node, int parent,
+extern void prom_apply_generic_ranges(phandle node, phandle parent,
 				      struct linux_prom_registers *sbusregs, int nregs);
 
 /* CPU probing helpers.  */
-int cpu_find_by_instance(int instance, int *prom_node, int *mid);
-int cpu_find_by_mid(int mid, int *prom_node);
-int cpu_get_hwmid(int prom_node);
+int cpu_find_by_instance(int instance, phandle *prom_node, int *mid);
+int cpu_find_by_mid(int mid, phandle *prom_node);
+int cpu_get_hwmid(phandle prom_node);
 
 extern spinlock_t prom_lock;
 
diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index 3e0b2d62303d..c9cc078e3e31 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -16,7 +16,7 @@ extern char prom_version[];
 /* Root node of the prom device tree, this stays constant after
  * initialization is complete.
  */
-extern int prom_root_node;
+extern phandle prom_root_node;
 
 /* PROM stdin and stdout */
 extern int prom_stdin, prom_stdout;
@@ -24,7 +24,7 @@ extern int prom_stdin, prom_stdout;
 /* /chosen node of the prom device tree, this stays constant after
  * initialization is complete.
  */
-extern int prom_chosen_node;
+extern phandle prom_chosen_node;
 
 /* Helper values and strings in arch/sparc64/kernel/head.S */
 extern const char prom_peer_name[];
@@ -218,68 +218,69 @@ extern void prom_unmap(unsigned long size, unsigned long vaddr);
 /* PROM device tree traversal functions... */
 
 /* Get the child node of the given node, or zero if no child exists. */
-extern int prom_getchild(int parent_node);
+extern phandle prom_getchild(phandle parent_node);
 
 /* Get the next sibling node of the given node, or zero if no further
  * siblings exist.
  */
-extern int prom_getsibling(int node);
+extern phandle prom_getsibling(phandle node);
 
 /* Get the length, at the passed node, of the given property type.
  * Returns -1 on error (ie. no such property at this node).
  */
-extern int prom_getproplen(int thisnode, const char *property);
+extern int prom_getproplen(phandle thisnode, const char *property);
 
 /* Fetch the requested property using the given buffer.  Returns
  * the number of bytes the prom put into your buffer or -1 on error.
  */
-extern int prom_getproperty(int thisnode, const char *property,
+extern int prom_getproperty(phandle thisnode, const char *property,
 			    char *prop_buffer, int propbuf_size);
 
 /* Acquire an integer property. */
-extern int prom_getint(int node, const char *property);
+extern int prom_getint(phandle node, const char *property);
 
 /* Acquire an integer property, with a default value. */
-extern int prom_getintdefault(int node, const char *property, int defval);
+extern int prom_getintdefault(phandle node, const char *property, int defval);
 
 /* Acquire a boolean property, 0=FALSE 1=TRUE. */
-extern int prom_getbool(int node, const char *prop);
+extern int prom_getbool(phandle node, const char *prop);
 
 /* Acquire a string property, null string on error. */
-extern void prom_getstring(int node, const char *prop, char *buf, int bufsize);
+extern void prom_getstring(phandle node, const char *prop, char *buf,
+			   int bufsize);
 
 /* Does the passed node have the given "name"? YES=1 NO=0 */
-extern int prom_nodematch(int thisnode, const char *name);
+extern int prom_nodematch(phandle thisnode, const char *name);
 
 /* Search all siblings starting at the passed node for "name" matching
  * the given string.  Returns the node on success, zero on failure.
  */
-extern int prom_searchsiblings(int node_start, const char *name);
+extern phandle prom_searchsiblings(phandle node_start, const char *name);
 
 /* Return the first property type, as a string, for the given node.
  * Returns a null string on error. Buffer should be at least 32B long.
  */
-extern char *prom_firstprop(int node, char *buffer);
+extern char *prom_firstprop(phandle node, char *buffer);
 
 /* Returns the next property after the passed property for the given
  * node.  Returns null string on failure. Buffer should be at least 32B long.
  */
-extern char *prom_nextprop(int node, const char *prev_property, char *buffer);
+extern char *prom_nextprop(phandle node, const char *prev_property, char *buf);
 
 /* Returns 1 if the specified node has given property. */
-extern int prom_node_has_property(int node, const char *property);
+extern int prom_node_has_property(phandle node, const char *property);
 
 /* Returns phandle of the path specified */
-extern int prom_finddevice(const char *name);
+extern phandle prom_finddevice(const char *name);
 
 /* Set the indicated property at the given node with the passed value.
  * Returns the number of bytes of your value that the prom took.
  */
-extern int prom_setprop(int node, const char *prop_name, char *prop_value,
+extern int prom_setprop(phandle node, const char *prop_name, char *prop_value,
 			int value_size);
 
-extern int prom_pathtoinode(const char *path);
-extern int prom_inst2pkg(int);
+extern phandle prom_pathtoinode(const char *path);
+extern phandle prom_inst2pkg(int);
 extern int prom_service_exists(const char *service_name);
 extern void prom_sun4v_guest_soft_state(void);
 
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 291f12575edd..56bbaadef646 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -18,6 +18,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/types.h>
+#include <linux/of_pdt.h>
 #include <linux/proc_fs.h>
 #include <linux/mutex.h>
 #include <asm/atomic.h>
@@ -67,8 +68,8 @@ extern struct device_node *of_console_device;
 extern char *of_console_path;
 extern char *of_console_options;
 
-extern void (*prom_build_more)(struct device_node *dp, struct device_node ***nextp);
-extern char *build_full_name(struct device_node *dp);
+extern void irq_trans_init(struct device_node *dp);
+extern char *build_path_component(struct device_node *dp);
 
 #endif /* __KERNEL__ */
 #endif /* _SPARC_PROM_H */
diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c
index ee8d214cae1e..35f48837871a 100644
--- a/arch/sparc/kernel/auxio_32.c
+++ b/arch/sparc/kernel/auxio_32.c
@@ -23,7 +23,7 @@ static DEFINE_SPINLOCK(auxio_lock);
 
 void __init auxio_probe(void)
 {
-	int node, auxio_nd;
+	phandle node, auxio_nd;
 	struct linux_prom_registers auxregs[1];
 	struct resource r;
 
@@ -113,7 +113,7 @@ volatile unsigned char * auxio_power_register = NULL;
 void __init auxio_power_probe(void)
 {
 	struct linux_prom_registers regs;
-	int node;
+	phandle node;
 	struct resource r;
 
 	/* Attempt to find the sun4m power control node. */
diff --git a/arch/sparc/kernel/btext.c b/arch/sparc/kernel/btext.c
index 8cc2d56ffe9a..89aa4eb20cf5 100644
--- a/arch/sparc/kernel/btext.c
+++ b/arch/sparc/kernel/btext.c
@@ -40,7 +40,7 @@ static unsigned char *dispDeviceBase __force_data;
 
 static unsigned char vga_font[cmapsz];
 
-static int __init btext_initialize(unsigned int node)
+static int __init btext_initialize(phandle node)
 {
 	unsigned int width, height, depth, pitch;
 	unsigned long address = 0;
@@ -309,7 +309,7 @@ static struct console btext_console = {
 
 int __init btext_find_display(void)
 {
-	unsigned int node;
+	phandle node;
 	char type[32];
 	int ret;
 
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index 62dc7a021413..d2eddd6647cd 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -31,9 +31,9 @@ static char *cpu_mid_prop(void)
 	return "mid";
 }
 
-static int check_cpu_node(int nd, int *cur_inst,
-			  int (*compare)(int, int, void *), void *compare_arg,
-			  int *prom_node, int *mid)
+static int check_cpu_node(phandle nd, int *cur_inst,
+		int (*compare)(phandle, int, void *), void *compare_arg,
+		phandle *prom_node, int *mid)
 {
 	if (!compare(nd, *cur_inst, compare_arg)) {
 		if (prom_node)
@@ -51,8 +51,8 @@ static int check_cpu_node(int nd, int *cur_inst,
 	return -ENODEV;
 }
 
-static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg,
-			 int *prom_node, int *mid)
+static int __cpu_find_by(int (*compare)(phandle, int, void *),
+		void *compare_arg, phandle *prom_node, int *mid)
 {
 	struct device_node *dp;
 	int cur_inst;
@@ -71,7 +71,7 @@ static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg,
 	return -ENODEV;
 }
 
-static int cpu_instance_compare(int nd, int instance, void *_arg)
+static int cpu_instance_compare(phandle nd, int instance, void *_arg)
 {
 	int desired_instance = (int) _arg;
 
@@ -80,13 +80,13 @@ static int cpu_instance_compare(int nd, int instance, void *_arg)
 	return -ENODEV;
 }
 
-int cpu_find_by_instance(int instance, int *prom_node, int *mid)
+int cpu_find_by_instance(int instance, phandle *prom_node, int *mid)
 {
 	return __cpu_find_by(cpu_instance_compare, (void *)instance,
 			     prom_node, mid);
 }
 
-static int cpu_mid_compare(int nd, int instance, void *_arg)
+static int cpu_mid_compare(phandle nd, int instance, void *_arg)
 {
 	int desired_mid = (int) _arg;
 	int this_mid;
@@ -98,7 +98,7 @@ static int cpu_mid_compare(int nd, int instance, void *_arg)
 	return -ENODEV;
 }
 
-int cpu_find_by_mid(int mid, int *prom_node)
+int cpu_find_by_mid(int mid, phandle *prom_node)
 {
 	return __cpu_find_by(cpu_mid_compare, (void *)mid,
 			     prom_node, NULL);
@@ -108,7 +108,7 @@ int cpu_find_by_mid(int mid, int *prom_node)
  * address (0-3).  This gives us the true hardware mid, which might have
  * some other bits set.  On 4d hardware and software mids are the same.
  */
-int cpu_get_hwmid(int prom_node)
+int cpu_get_hwmid(phandle prom_node)
 {
 	return prom_getintdefault(prom_node, cpu_mid_prop(), -ENODEV);
 }
@@ -119,7 +119,8 @@ void __init device_scan(void)
 
 #ifndef CONFIG_SMP
 	{
-		int err, cpu_node;
+		phandle cpu_node;
+		int err;
 		err = cpu_find_by_instance(0, &cpu_node, NULL);
 		if (err) {
 			/* Probably a sun4e, Sun is trying to trick us ;-) */
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 6a7b4dbc8e09..2d51527d810f 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -282,5 +282,5 @@ void __init leon_init_IRQ(void)
 
 void __init leon_init(void)
 {
-	prom_build_more = &leon_node_init;
+	of_pdt_build_more = &leon_node_init;
 }
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index d36a8d391ca0..aeaa09a3c655 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -284,7 +284,7 @@ int __init pcic_probe(void)
 	struct linux_prom_registers regs[PROMREG_MAX];
 	struct linux_pbm_info* pbm;
 	char namebuf[64];
-	int node;
+	phandle node;
 	int err;
 
 	if (pcic0_up) {
@@ -440,7 +440,7 @@ static int __devinit pdev_to_pnode(struct linux_pbm_info *pbm,
 {
 	struct linux_prom_pci_registers regs[PROMREG_MAX];
 	int err;
-	int node = prom_getchild(pbm->prom_node);
+	phandle node = prom_getchild(pbm->prom_node);
 
 	while(node) {
 		err = prom_getproperty(node, "reg", 
diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h
index eeb04a782ec8..cf5fe1c0b024 100644
--- a/arch/sparc/kernel/prom.h
+++ b/arch/sparc/kernel/prom.h
@@ -4,12 +4,6 @@
 #include <linux/spinlock.h>
 #include <asm/prom.h>
 
-extern void * prom_early_alloc(unsigned long size);
-extern void irq_trans_init(struct device_node *dp);
-
-extern unsigned int prom_unique_id;
-
-extern char *build_path_component(struct device_node *dp);
 extern void of_console_init(void);
 
 extern unsigned int prom_early_allocated;
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index 1f830da2ddf2..ed25834328f4 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -20,14 +20,13 @@
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/of_pdt.h>
 #include <asm/prom.h>
 #include <asm/oplib.h>
 #include <asm/leon.h>
 
 #include "prom.h"
 
-void (*prom_build_more)(struct device_node *dp, struct device_node ***nextp);
-
 struct device_node *of_console_device;
 EXPORT_SYMBOL(of_console_device);
 
@@ -119,192 +118,47 @@ int of_find_in_proplist(const char *list, const char *match, int len)
 }
 EXPORT_SYMBOL(of_find_in_proplist);
 
-unsigned int prom_unique_id;
-
-static struct property * __init build_one_prop(phandle node, char *prev,
-					       char *special_name,
-					       void *special_val,
-					       int special_len)
+/*
+ * SPARC32 and SPARC64's prom_nextprop() do things differently
+ * here, despite sharing the same interface.  SPARC32 doesn't fill in 'buf',
+ * returning NULL on an error.  SPARC64 fills in 'buf', but sets it to an
+ * empty string upon error.
+ */
+static int __init handle_nextprop_quirks(char *buf, const char *name)
 {
-	static struct property *tmp = NULL;
-	struct property *p;
-	const char *name;
-
-	if (tmp) {
-		p = tmp;
-		memset(p, 0, sizeof(*p) + 32);
-		tmp = NULL;
-	} else {
-		p = prom_early_alloc(sizeof(struct property) + 32);
-		p->unique_id = prom_unique_id++;
-	}
-
-	p->name = (char *) (p + 1);
-	if (special_name) {
-		strcpy(p->name, special_name);
-		p->length = special_len;
-		p->value = prom_early_alloc(special_len);
-		memcpy(p->value, special_val, special_len);
-	} else {
-		if (prev == NULL) {
-			name = prom_firstprop(node, p->name);
-		} else {
-			name = prom_nextprop(node, prev, p->name);
-		}
+	if (!name || strlen(name) == 0)
+		return -1;
 
-		if (!name || strlen(name) == 0) {
-			tmp = p;
-			return NULL;
-		}
 #ifdef CONFIG_SPARC32
-		strcpy(p->name, name);
+	strcpy(buf, name);
 #endif
-		p->length = prom_getproplen(node, p->name);
-		if (p->length <= 0) {
-			p->length = 0;
-		} else {
-			int len;
-
-			p->value = prom_early_alloc(p->length + 1);
-			len = prom_getproperty(node, p->name, p->value,
-					       p->length);
-			if (len <= 0)
-				p->length = 0;
-			((unsigned char *)p->value)[p->length] = '\0';
-		}
-	}
-	return p;
-}
-
-static struct property * __init build_prop_list(phandle node)
-{
-	struct property *head, *tail;
-
-	head = tail = build_one_prop(node, NULL,
-				     ".node", &node, sizeof(node));
-
-	tail->next = build_one_prop(node, NULL, NULL, NULL, 0);
-	tail = tail->next;
-	while(tail) {
-		tail->next = build_one_prop(node, tail->name,
-					    NULL, NULL, 0);
-		tail = tail->next;
-	}
-
-	return head;
-}
-
-static char * __init get_one_property(phandle node, const char *name)
-{
-	char *buf = "<NULL>";
-	int len;
-
-	len = prom_getproplen(node, name);
-	if (len > 0) {
-		buf = prom_early_alloc(len);
-		len = prom_getproperty(node, name, buf, len);
-	}
-
-	return buf;
-}
-
-static struct device_node * __init prom_create_node(phandle node,
-						    struct device_node *parent)
-{
-	struct device_node *dp;
-
-	if (!node)
-		return NULL;
-
-	dp = prom_early_alloc(sizeof(*dp));
-	dp->unique_id = prom_unique_id++;
-	dp->parent = parent;
-
-	kref_init(&dp->kref);
-
-	dp->name = get_one_property(node, "name");
-	dp->type = get_one_property(node, "device_type");
-	dp->phandle = node;
-
-	dp->properties = build_prop_list(node);
-
-	irq_trans_init(dp);
-
-	return dp;
-}
-
-char * __init build_full_name(struct device_node *dp)
-{
-	int len, ourlen, plen;
-	char *n;
-
-	plen = strlen(dp->parent->full_name);
-	ourlen = strlen(dp->path_component_name);
-	len = ourlen + plen + 2;
-
-	n = prom_early_alloc(len);
-	strcpy(n, dp->parent->full_name);
-	if (!of_node_is_root(dp->parent)) {
-		strcpy(n + plen, "/");
-		plen++;
-	}
-	strcpy(n + plen, dp->path_component_name);
-
-	return n;
+	return 0;
 }
 
-static struct device_node * __init prom_build_tree(struct device_node *parent,
-						   phandle node,
-						   struct device_node ***nextp)
+static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
 {
-	struct device_node *ret = NULL, *prev_sibling = NULL;
-	struct device_node *dp;
-
-	while (1) {
-		dp = prom_create_node(node, parent);
-		if (!dp)
-			break;
-
-		if (prev_sibling)
-			prev_sibling->sibling = dp;
-
-		if (!ret)
-			ret = dp;
-		prev_sibling = dp;
-
-		*(*nextp) = dp;
-		*nextp = &dp->allnext;
-
-		dp->path_component_name = build_path_component(dp);
-		dp->full_name = build_full_name(dp);
-
-		dp->child = prom_build_tree(dp, prom_getchild(node), nextp);
-
-		if (prom_build_more)
-			prom_build_more(dp, nextp);
-
-		node = prom_getsibling(node);
-	}
+	const char *name;
 
-	return ret;
+	buf[0] = '\0';
+	name = prom_nextprop(node, prev, buf);
+	return handle_nextprop_quirks(buf, name);
 }
 
 unsigned int prom_early_allocated __initdata;
 
+static struct of_pdt_ops prom_sparc_ops __initdata = {
+	.nextprop = prom_common_nextprop,
+	.getproplen = prom_getproplen,
+	.getproperty = prom_getproperty,
+	.getchild = prom_getchild,
+	.getsibling = prom_getsibling,
+};
+
 void __init prom_build_devicetree(void)
 {
-	struct device_node **nextp;
-
-	allnodes = prom_create_node(prom_root_node, NULL);
-	allnodes->path_component_name = "";
-	allnodes->full_name = "/";
-
-	nextp = &allnodes->allnext;
-	allnodes->child = prom_build_tree(allnodes,
-					  prom_getchild(allnodes->phandle),
-					  &nextp);
+	of_pdt_build_devicetree(prom_root_node, &prom_sparc_ops);
 	of_console_init();
 
-	printk("PROM: Built device tree with %u bytes of memory.\n",
-	       prom_early_allocated);
+	pr_info("PROM: Built device tree with %u bytes of memory.\n",
+			prom_early_allocated);
 }
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 5f72de67588b..29bafe051bb1 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -315,7 +315,7 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_IP_PNP
 	if (!ic_set_manually) {
-		int chosen = prom_finddevice ("/chosen");
+		phandle chosen = prom_finddevice("/chosen");
 		u32 cl, sv, gw;
 		
 		cl = prom_getintdefault (chosen, "client-ip", 0);
diff --git a/arch/sparc/kernel/starfire.c b/arch/sparc/kernel/starfire.c
index 060d0f3a6151..a4446c0fb7a1 100644
--- a/arch/sparc/kernel/starfire.c
+++ b/arch/sparc/kernel/starfire.c
@@ -23,7 +23,7 @@ int this_is_starfire = 0;
 
 void check_if_starfire(void)
 {
-	int ssnode = prom_finddevice("/ssp-serial");
+	phandle ssnode = prom_finddevice("/ssp-serial");
 	if (ssnode != 0 && ssnode != -1)
 		this_is_starfire = 1;
 }
diff --git a/arch/sparc/kernel/tadpole.c b/arch/sparc/kernel/tadpole.c
index f476a5f4af6a..9aba8bd5a78b 100644
--- a/arch/sparc/kernel/tadpole.c
+++ b/arch/sparc/kernel/tadpole.c
@@ -100,7 +100,7 @@ static void swift_clockstop(void)
 
 void __init clock_stop_probe(void)
 {
-	unsigned int node, clk_nd;
+	phandle node, clk_nd;
 	char name[20];
     
 	prom_getstring(prom_root_node, "name", name, sizeof(name));
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 4c2572773b55..2f6ae1d1fb6b 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -88,7 +88,7 @@ static void __init read_obp_memory(const char *property,
 				   struct linux_prom64_registers *regs,
 				   int *num_ents)
 {
-	int node = prom_finddevice("/memory");
+	phandle node = prom_finddevice("/memory");
 	int prop_size = prom_getproplen(node, property);
 	int ents, ret, i;
 
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index b0b43aa5e45a..92319aa8b662 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -1262,7 +1262,8 @@ extern unsigned long bootmem_init(unsigned long *pages_avail);
 
 void __init srmmu_paging_init(void)
 {
-	int i, cpunode;
+	int i;
+	phandle cpunode;
 	char node_str[128];
 	pgd_t *pgd;
 	pmd_t *pmd;
@@ -1398,7 +1399,8 @@ static void __init srmmu_is_bad(void)
 
 static void __init init_vac_layout(void)
 {
-	int nd, cache_lines;
+	phandle nd;
+	int cache_lines;
 	char node_str[128];
 #ifdef CONFIG_SMP
 	int cpu = 0;
@@ -2082,7 +2084,7 @@ static void __init get_srmmu_type(void)
 
 	/* Next check for Fujitsu Swift. */
 	if(psr_typ == 0 && psr_vers == 4) {
-		int cpunode;
+		phandle cpunode;
 		char node_str[128];
 
 		/* Look if it is not a TurboSparc emulating Swift... */
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index 4289f90f8697..ddd0d86e508e 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -420,7 +420,7 @@ volatile unsigned long __iomem *sun4c_memerr_reg = NULL;
 
 void __init sun4c_probe_memerr_reg(void)
 {
-	int node;
+	phandle node;
 	struct linux_prom_registers regs[1];
 
 	node = prom_getchild(prom_root_node);
diff --git a/arch/sparc/prom/init_32.c b/arch/sparc/prom/init_32.c
index ccb36c7f9b8c..d342dba4dd54 100644
--- a/arch/sparc/prom/init_32.c
+++ b/arch/sparc/prom/init_32.c
@@ -20,7 +20,7 @@ enum prom_major_version prom_vers;
 unsigned int prom_rev, prom_prev;
 
 /* The root node of the prom device tree. */
-int prom_root_node;
+phandle prom_root_node;
 EXPORT_SYMBOL(prom_root_node);
 
 /* Pointer to the device tree operations structure. */
diff --git a/arch/sparc/prom/init_64.c b/arch/sparc/prom/init_64.c
index 7b00f89490a4..3ff911e7d25b 100644
--- a/arch/sparc/prom/init_64.c
+++ b/arch/sparc/prom/init_64.c
@@ -19,7 +19,7 @@ char prom_version[80];
 
 /* The root node of the prom device tree. */
 int prom_stdin, prom_stdout;
-int prom_chosen_node;
+phandle prom_chosen_node;
 
 /* You must call prom_init() before you attempt to use any of the
  * routines in the prom library.  It returns 0 on success, 1 on
@@ -30,7 +30,7 @@ extern void prom_cif_init(void *, void *);
 
 void __init prom_init(void *cif_handler, void *cif_stack)
 {
-	int node;
+	phandle node;
 
 	prom_cif_init(cif_handler, cif_stack);
 
diff --git a/arch/sparc/prom/memory.c b/arch/sparc/prom/memory.c
index fac7899a29c3..3f263a64857d 100644
--- a/arch/sparc/prom/memory.c
+++ b/arch/sparc/prom/memory.c
@@ -31,7 +31,8 @@ static int __init prom_meminit_v0(void)
 static int __init prom_meminit_v2(void)
 {
 	struct linux_prom_registers reg[64];
-	int node, size, num_ents, i;
+	phandle node;
+	int size, num_ents, i;
 
 	node = prom_searchsiblings(prom_getchild(prom_root_node), "memory");
 	size = prom_getproperty(node, "available", (char *) reg, sizeof(reg));
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index 6cb1581d6aef..d24bc44e361e 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -183,7 +183,8 @@ unsigned char prom_get_idprom(char *idbuf, int num_bytes)
 
 int prom_get_mmu_ihandle(void)
 {
-	int node, ret;
+	phandle node;
+	int ret;
 
 	if (prom_mmu_ihandle_cache != 0)
 		return prom_mmu_ihandle_cache;
@@ -201,7 +202,8 @@ int prom_get_mmu_ihandle(void)
 static int prom_get_memory_ihandle(void)
 {
 	static int memory_ihandle_cache;
-	int node, ret;
+	phandle node;
+	int ret;
 
 	if (memory_ihandle_cache != 0)
 		return memory_ihandle_cache;
diff --git a/arch/sparc/prom/ranges.c b/arch/sparc/prom/ranges.c
index aeff43e44e45..541fc829c207 100644
--- a/arch/sparc/prom/ranges.c
+++ b/arch/sparc/prom/ranges.c
@@ -68,7 +68,7 @@ EXPORT_SYMBOL(prom_apply_obio_ranges);
 
 void __init prom_ranges_init(void)
 {
-	int node, obio_node;
+	phandle node, obio_node;
 	int success;
 
 	num_obio_ranges = 0;
@@ -89,8 +89,8 @@ void __init prom_ranges_init(void)
 		prom_printf("PROMLIB: obio_ranges %d\n", num_obio_ranges);
 }
 
-void
-prom_apply_generic_ranges (int node, int parent, struct linux_prom_registers *regs, int nregs)
+void prom_apply_generic_ranges(phandle node, phandle parent,
+		struct linux_prom_registers *regs, int nregs)
 {
 	int success;
 	int num_ranges;
diff --git a/arch/sparc/prom/tree_32.c b/arch/sparc/prom/tree_32.c
index b21592f8e3fe..63e08e149774 100644
--- a/arch/sparc/prom/tree_32.c
+++ b/arch/sparc/prom/tree_32.c
@@ -20,10 +20,10 @@ extern void restore_current(void);
 static char promlib_buf[128];
 
 /* Internal version of prom_getchild that does not alter return values. */
-int __prom_getchild(int node)
+phandle __prom_getchild(phandle node)
 {
 	unsigned long flags;
-	int cnode;
+	phandle cnode;
 
 	spin_lock_irqsave(&prom_lock, flags);
 	cnode = prom_nodeops->no_child(node);
@@ -36,9 +36,9 @@ int __prom_getchild(int node)
 /* Return the child of node 'node' or zero if no this node has no
  * direct descendent.
  */
-int prom_getchild(int node)
+phandle prom_getchild(phandle node)
 {
-	int cnode;
+	phandle cnode;
 
 	if (node == -1)
 		return 0;
@@ -52,10 +52,10 @@ int prom_getchild(int node)
 EXPORT_SYMBOL(prom_getchild);
 
 /* Internal version of prom_getsibling that does not alter return values. */
-int __prom_getsibling(int node)
+phandle __prom_getsibling(phandle node)
 {
 	unsigned long flags;
-	int cnode;
+	phandle cnode;
 
 	spin_lock_irqsave(&prom_lock, flags);
 	cnode = prom_nodeops->no_nextnode(node);
@@ -68,9 +68,9 @@ int __prom_getsibling(int node)
 /* Return the next sibling of node 'node' or zero if no more siblings
  * at this level of depth in the tree.
  */
-int prom_getsibling(int node)
+phandle prom_getsibling(phandle node)
 {
-	int sibnode;
+	phandle sibnode;
 
 	if (node == -1)
 		return 0;
@@ -86,7 +86,7 @@ EXPORT_SYMBOL(prom_getsibling);
 /* Return the length in bytes of property 'prop' at node 'node'.
  * Return -1 on error.
  */
-int prom_getproplen(int node, const char *prop)
+int prom_getproplen(phandle node, const char *prop)
 {
 	int ret;
 	unsigned long flags;
@@ -106,7 +106,7 @@ EXPORT_SYMBOL(prom_getproplen);
  * 'buffer' which has a size of 'bufsize'.  If the acquisition
  * was successful the length will be returned, else -1 is returned.
  */
-int prom_getproperty(int node, const char *prop, char *buffer, int bufsize)
+int prom_getproperty(phandle node, const char *prop, char *buffer, int bufsize)
 {
 	int plen, ret;
 	unsigned long flags;
@@ -126,7 +126,7 @@ EXPORT_SYMBOL(prom_getproperty);
 /* Acquire an integer property and return its value.  Returns -1
  * on failure.
  */
-int prom_getint(int node, char *prop)
+int prom_getint(phandle node, char *prop)
 {
 	static int intprop;
 
@@ -140,7 +140,7 @@ EXPORT_SYMBOL(prom_getint);
 /* Acquire an integer property, upon error return the passed default
  * integer.
  */
-int prom_getintdefault(int node, char *property, int deflt)
+int prom_getintdefault(phandle node, char *property, int deflt)
 {
 	int retval;
 
@@ -152,7 +152,7 @@ int prom_getintdefault(int node, char *property, int deflt)
 EXPORT_SYMBOL(prom_getintdefault);
 
 /* Acquire a boolean property, 1=TRUE 0=FALSE. */
-int prom_getbool(int node, char *prop)
+int prom_getbool(phandle node, char *prop)
 {
 	int retval;
 
@@ -166,7 +166,7 @@ EXPORT_SYMBOL(prom_getbool);
  * string on error.  The char pointer is the user supplied string
  * buffer.
  */
-void prom_getstring(int node, char *prop, char *user_buf, int ubuf_size)
+void prom_getstring(phandle node, char *prop, char *user_buf, int ubuf_size)
 {
 	int len;
 
@@ -180,7 +180,7 @@ EXPORT_SYMBOL(prom_getstring);
 /* Does the device at node 'node' have name 'name'?
  * YES = 1   NO = 0
  */
-int prom_nodematch(int node, char *name)
+int prom_nodematch(phandle node, char *name)
 {
 	int error;
 
@@ -194,10 +194,11 @@ int prom_nodematch(int node, char *name)
 /* Search siblings at 'node_start' for a node with name
  * 'nodename'.  Return node if successful, zero if not.
  */
-int prom_searchsiblings(int node_start, char *nodename)
+phandle prom_searchsiblings(phandle node_start, char *nodename)
 {
 
-	int thisnode, error;
+	phandle thisnode;
+	int error;
 
 	for(thisnode = node_start; thisnode;
 	    thisnode=prom_getsibling(thisnode)) {
@@ -213,7 +214,7 @@ int prom_searchsiblings(int node_start, char *nodename)
 EXPORT_SYMBOL(prom_searchsiblings);
 
 /* Interal version of nextprop that does not alter return values. */
-char * __prom_nextprop(int node, char * oprop)
+char *__prom_nextprop(phandle node, char * oprop)
 {
 	unsigned long flags;
 	char *prop;
@@ -228,7 +229,7 @@ char * __prom_nextprop(int node, char * oprop)
 
 /* Return the first property name for node 'node'. */
 /* buffer is unused argument, but as v9 uses it, we need to have the same interface */
-char * prom_firstprop(int node, char *bufer)
+char *prom_firstprop(phandle node, char *bufer)
 {
 	if (node == 0 || node == -1)
 		return "";
@@ -241,7 +242,7 @@ EXPORT_SYMBOL(prom_firstprop);
  * at node 'node' .  Returns empty string if no more
  * property types for this node.
  */
-char * prom_nextprop(int node, char *oprop, char *buffer)
+char *prom_nextprop(phandle node, char *oprop, char *buffer)
 {
 	if (node == 0 || node == -1)
 		return "";
@@ -250,11 +251,11 @@ char * prom_nextprop(int node, char *oprop, char *buffer)
 }
 EXPORT_SYMBOL(prom_nextprop);
 
-int prom_finddevice(char *name)
+phandle prom_finddevice(char *name)
 {
 	char nbuf[128];
 	char *s = name, *d;
-	int node = prom_root_node, node2;
+	phandle node = prom_root_node, node2;
 	unsigned int which_io, phys_addr;
 	struct linux_prom_registers reg[PROMREG_MAX];
 
@@ -298,7 +299,7 @@ int prom_finddevice(char *name)
 }
 EXPORT_SYMBOL(prom_finddevice);
 
-int prom_node_has_property(int node, char *prop)
+int prom_node_has_property(phandle node, char *prop)
 {
 	char *current_property = "";
 
@@ -314,7 +315,7 @@ EXPORT_SYMBOL(prom_node_has_property);
 /* Set property 'pname' at node 'node' to value 'value' which has a length
  * of 'size' bytes.  Return the number of bytes the prom accepted.
  */
-int prom_setprop(int node, const char *pname, char *value, int size)
+int prom_setprop(phandle node, const char *pname, char *value, int size)
 {
 	unsigned long flags;
 	int ret;
@@ -329,9 +330,9 @@ int prom_setprop(int node, const char *pname, char *value, int size)
 }
 EXPORT_SYMBOL(prom_setprop);
 
-int prom_inst2pkg(int inst)
+phandle prom_inst2pkg(int inst)
 {
-	int node;
+	phandle node;
 	unsigned long flags;
 	
 	spin_lock_irqsave(&prom_lock, flags);
@@ -345,9 +346,10 @@ int prom_inst2pkg(int inst)
 /* Return 'node' assigned to a particular prom 'path'
  * FIXME: Should work for v0 as well
  */
-int prom_pathtoinode(char *path)
+phandle prom_pathtoinode(char *path)
 {
-	int node, inst;
+	phandle node;
+	int inst;
 	
 	inst = prom_devopen (path);
 	if (inst == -1) return 0;
diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c
index 9d3f9137a43a..691be68932f8 100644
--- a/arch/sparc/prom/tree_64.c
+++ b/arch/sparc/prom/tree_64.c
@@ -16,7 +16,7 @@
 #include <asm/oplib.h>
 #include <asm/ldc.h>
 
-static int prom_node_to_node(const char *type, int node)
+static phandle prom_node_to_node(const char *type, phandle node)
 {
 	unsigned long args[5];
 
@@ -28,20 +28,20 @@ static int prom_node_to_node(const char *type, int node)
 
 	p1275_cmd_direct(args);
 
-	return (int) args[4];
+	return (phandle) args[4];
 }
 
 /* Return the child of node 'node' or zero if no this node has no
  * direct descendent.
  */
-inline int __prom_getchild(int node)
+inline phandle __prom_getchild(phandle node)
 {
 	return prom_node_to_node("child", node);
 }
 
-inline int prom_getchild(int node)
+inline phandle prom_getchild(phandle node)
 {
-	int cnode;
+	phandle cnode;
 
 	if (node == -1)
 		return 0;
@@ -52,9 +52,9 @@ inline int prom_getchild(int node)
 }
 EXPORT_SYMBOL(prom_getchild);
 
-inline int prom_getparent(int node)
+inline phandle prom_getparent(phandle node)
 {
-	int cnode;
+	phandle cnode;
 
 	if (node == -1)
 		return 0;
@@ -67,14 +67,14 @@ inline int prom_getparent(int node)
 /* Return the next sibling of node 'node' or zero if no more siblings
  * at this level of depth in the tree.
  */
-inline int __prom_getsibling(int node)
+inline phandle __prom_getsibling(phandle node)
 {
 	return prom_node_to_node(prom_peer_name, node);
 }
 
-inline int prom_getsibling(int node)
+inline phandle prom_getsibling(phandle node)
 {
-	int sibnode;
+	phandle sibnode;
 
 	if (node == -1)
 		return 0;
@@ -89,7 +89,7 @@ EXPORT_SYMBOL(prom_getsibling);
 /* Return the length in bytes of property 'prop' at node 'node'.
  * Return -1 on error.
  */
-inline int prom_getproplen(int node, const char *prop)
+inline int prom_getproplen(phandle node, const char *prop)
 {
 	unsigned long args[6];
 
@@ -113,7 +113,7 @@ EXPORT_SYMBOL(prom_getproplen);
  * 'buffer' which has a size of 'bufsize'.  If the acquisition
  * was successful the length will be returned, else -1 is returned.
  */
-inline int prom_getproperty(int node, const char *prop,
+inline int prom_getproperty(phandle node, const char *prop,
 			    char *buffer, int bufsize)
 {
 	unsigned long args[8];
@@ -141,7 +141,7 @@ EXPORT_SYMBOL(prom_getproperty);
 /* Acquire an integer property and return its value.  Returns -1
  * on failure.
  */
-inline int prom_getint(int node, const char *prop)
+inline int prom_getint(phandle node, const char *prop)
 {
 	int intprop;
 
@@ -156,7 +156,7 @@ EXPORT_SYMBOL(prom_getint);
  * integer.
  */
 
-int prom_getintdefault(int node, const char *property, int deflt)
+int prom_getintdefault(phandle node, const char *property, int deflt)
 {
 	int retval;
 
@@ -169,7 +169,7 @@ int prom_getintdefault(int node, const char *property, int deflt)
 EXPORT_SYMBOL(prom_getintdefault);
 
 /* Acquire a boolean property, 1=TRUE 0=FALSE. */
-int prom_getbool(int node, const char *prop)
+int prom_getbool(phandle node, const char *prop)
 {
 	int retval;
 
@@ -184,7 +184,8 @@ EXPORT_SYMBOL(prom_getbool);
  * string on error.  The char pointer is the user supplied string
  * buffer.
  */
-void prom_getstring(int node, const char *prop, char *user_buf, int ubuf_size)
+void prom_getstring(phandle node, const char *prop, char *user_buf,
+		int ubuf_size)
 {
 	int len;
 
@@ -198,7 +199,7 @@ EXPORT_SYMBOL(prom_getstring);
 /* Does the device at node 'node' have name 'name'?
  * YES = 1   NO = 0
  */
-int prom_nodematch(int node, const char *name)
+int prom_nodematch(phandle node, const char *name)
 {
 	char namebuf[128];
 	prom_getproperty(node, "name", namebuf, sizeof(namebuf));
@@ -210,10 +211,10 @@ int prom_nodematch(int node, const char *name)
 /* Search siblings at 'node_start' for a node with name
  * 'nodename'.  Return node if successful, zero if not.
  */
-int prom_searchsiblings(int node_start, const char *nodename)
+phandle prom_searchsiblings(phandle node_start, const char *nodename)
 {
-
-	int thisnode, error;
+	phandle thisnode;
+	int error;
 	char promlib_buf[128];
 
 	for(thisnode = node_start; thisnode;
@@ -234,7 +235,7 @@ static const char *prom_nextprop_name = "nextprop";
 /* Return the first property type for node 'node'.
  * buffer should be at least 32B in length
  */
-inline char *prom_firstprop(int node, char *buffer)
+inline char *prom_firstprop(phandle node, char *buffer)
 {
 	unsigned long args[7];
 
@@ -260,7 +261,7 @@ EXPORT_SYMBOL(prom_firstprop);
  * at node 'node' .  Returns NULL string if no more
  * property types for this node.
  */
-inline char *prom_nextprop(int node, const char *oprop, char *buffer)
+inline char *prom_nextprop(phandle node, const char *oprop, char *buffer)
 {
 	unsigned long args[7];
 	char buf[32];
@@ -288,8 +289,7 @@ inline char *prom_nextprop(int node, const char *oprop, char *buffer)
 }
 EXPORT_SYMBOL(prom_nextprop);
 
-int
-prom_finddevice(const char *name)
+phandle prom_finddevice(const char *name)
 {
 	unsigned long args[5];
 
@@ -307,7 +307,7 @@ prom_finddevice(const char *name)
 }
 EXPORT_SYMBOL(prom_finddevice);
 
-int prom_node_has_property(int node, const char *prop)
+int prom_node_has_property(phandle node, const char *prop)
 {
 	char buf [32];
         
@@ -325,7 +325,7 @@ EXPORT_SYMBOL(prom_node_has_property);
  * of 'size' bytes.  Return the number of bytes the prom accepted.
  */
 int
-prom_setprop(int node, const char *pname, char *value, int size)
+prom_setprop(phandle node, const char *pname, char *value, int size)
 {
 	unsigned long args[8];
 
@@ -355,10 +355,10 @@ prom_setprop(int node, const char *pname, char *value, int size)
 }
 EXPORT_SYMBOL(prom_setprop);
 
-inline int prom_inst2pkg(int inst)
+inline phandle prom_inst2pkg(int inst)
 {
 	unsigned long args[5];
-	int node;
+	phandle node;
 	
 	args[0] = (unsigned long) "instance-to-package";
 	args[1] = 1;
@@ -377,10 +377,10 @@ inline int prom_inst2pkg(int inst)
 /* Return 'node' assigned to a particular prom 'path'
  * FIXME: Should work for v0 as well
  */
-int
-prom_pathtoinode(const char *path)
+phandle prom_pathtoinode(const char *path)
 {
-	int node, inst;
+	phandle node;
+	int inst;
 
 	inst = prom_devopen (path);
 	if (inst == 0)