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

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (41 commits)
  of: remove undefined request_OF_resource & release_OF_resource
  of/sparc: Remove sparc-local declaration of allnodes and devtree_lock
  of: move definition of of_chosen into common code.
  of: remove unused extern reference to devtree_lock
  of: put default string compare and #a/s-cell values into common header
  of/flattree: Don't assume HAVE_LMB
  of: protect linux/of.h with CONFIG_OF
  proc_devtree: fix THIS_MODULE without module.h
  of: Remove old and misplaced function declarations
  of/flattree: Make the kernel accept ePAPR style phandle information
  of/flattree: endian-convert members of boot_param_header
  of: assume big-endian properties, adding conversions where necessary
  of: use __be32 for cell value accessors
  of/flattree: use OF_ROOT_NODE_{SIZE,ADDR}_CELLS DEFAULT for fdt parsing
  of/flattree: use callback to setup initrd from /chosen
  proc_devtree: include linux/of.h
  of: make set_node_proc_entry private to proc_devtree.c
  of: include linux/proc_fs.h
  of/flattree: merge early_init_dt_scan_memory() common code
  of: add 'of_' prefix to machine_is_compatible()
  ...

28 files changed, 114 insertions, 1918 deletions

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index cd5837e298b..b008168ae94 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -130,6 +130,7 @@ config CMDLINE_FORCE
 
 config OF
 	def_bool y
+	select OF_FLATTREE
 
 config PROC_DEVICETREE
 	bool "Support for device tree in /proc"
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index ef3ec1d6ceb..03f45a96320 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -26,31 +26,11 @@
 #include <asm/irq.h>
 #include <asm/atomic.h>
 
-#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT	1
-#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT	1
-
-#define of_compat_cmp(s1, s2, l)	strncasecmp((s1), (s2), (l))
-#define of_prop_cmp(s1, s2)		strcmp((s1), (s2))
-#define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
-
-extern struct device_node *of_chosen;
-
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
-extern struct device_node *allnodes;	/* temporary while merging */
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
-/* For updating the device tree at runtime */
-extern void of_attach_node(struct device_node *);
-extern void of_detach_node(struct device_node *);
-
 /* Other Prototypes */
 extern int early_uartlite_console(void);
 
-extern struct resource *request_OF_resource(struct device_node *node,
-				int index, const char *name_postfix);
-extern int release_OF_resource(struct device_node *node, int index);
-
 /*
  * OF address retreival & translation
  */
diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c
index acf4574d0f1..1c6d684996d 100644
--- a/arch/microblaze/kernel/of_platform.c
+++ b/arch/microblaze/kernel/of_platform.c
@@ -185,7 +185,7 @@ EXPORT_SYMBOL(of_find_device_by_node);
 static int of_dev_phandle_match(struct device *dev, void *data)
 {
 	phandle *ph = data;
-	return to_of_device(dev)->node->linux_phandle == *ph;
+	return to_of_device(dev)->node->phandle == *ph;
 }
 
 struct of_device *of_find_device_by_phandle(phandle ph)
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index b817df172aa..a15ef6d67ca 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -42,698 +42,21 @@
 #include <asm/sections.h>
 #include <asm/pci-bridge.h>
 
-static int __initdata dt_root_addr_cells;
-static int __initdata dt_root_size_cells;
-
-typedef u32 cell_t;
-
-static struct boot_param_header *initial_boot_params;
-
-/* export that to outside world */
-struct device_node *of_chosen;
-
-static inline char *find_flat_dt_string(u32 offset)
-{
-	return ((char *)initial_boot_params) +
-		initial_boot_params->off_dt_strings + offset;
-}
-
-/**
- * This function is used to scan the flattened device-tree, it is
- * used to extract the memory informations at boot before we can
- * unflatten the tree
- */
-int __init of_scan_flat_dt(int (*it)(unsigned long node,
-				     const char *uname, int depth,
-				     void *data),
-			   void *data)
-{
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	int rc = 0;
-	int depth = -1;
-
-	do {
-		u32 tag = *((u32 *)p);
-		char *pathp;
-
-		p += 4;
-		if (tag == OF_DT_END_NODE) {
-			depth--;
-			continue;
-		}
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag == OF_DT_END)
-			break;
-		if (tag == OF_DT_PROP) {
-			u32 sz = *((u32 *)p);
-			p += 8;
-			if (initial_boot_params->version < 0x10)
-				p = _ALIGN(p, sz >= 8 ? 8 : 4);
-			p += sz;
-			p = _ALIGN(p, 4);
-			continue;
-		}
-		if (tag != OF_DT_BEGIN_NODE) {
-			printk(KERN_WARNING "Invalid tag %x scanning flattened"
-				" device tree !\n", tag);
-			return -EINVAL;
-		}
-		depth++;
-		pathp = (char *)p;
-		p = _ALIGN(p + strlen(pathp) + 1, 4);
-		if ((*pathp) == '/') {
-			char *lp, *np;
-			for (lp = NULL, np = pathp; *np; np++)
-				if ((*np) == '/')
-					lp = np+1;
-			if (lp != NULL)
-				pathp = lp;
-		}
-		rc = it(p, pathp, depth, data);
-		if (rc != 0)
-			break;
-	} while (1);
-
-	return rc;
-}
-
-unsigned long __init of_get_flat_dt_root(void)
-{
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-
-	while (*((u32 *)p) == OF_DT_NOP)
-		p += 4;
-	BUG_ON(*((u32 *)p) != OF_DT_BEGIN_NODE);
-	p += 4;
-	return _ALIGN(p + strlen((char *)p) + 1, 4);
-}
-
-/**
- * This function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
-				unsigned long *size)
-{
-	unsigned long p = node;
-
-	do {
-		u32 tag = *((u32 *)p);
-		u32 sz, noff;
-		const char *nstr;
-
-		p += 4;
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag != OF_DT_PROP)
-			return NULL;
-
-		sz = *((u32 *)p);
-		noff = *((u32 *)(p + 4));
-		p += 8;
-		if (initial_boot_params->version < 0x10)
-			p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-		nstr = find_flat_dt_string(noff);
-		if (nstr == NULL) {
-			printk(KERN_WARNING "Can't find property index"
-				" name !\n");
-			return NULL;
-		}
-		if (strcmp(name, nstr) == 0) {
-			if (size)
-				*size = sz;
-			return (void *)p;
-		}
-		p += sz;
-		p = _ALIGN(p, 4);
-	} while (1);
-}
-
-int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
-{
-	const char *cp;
-	unsigned long cplen, l;
-
-	cp = of_get_flat_dt_prop(node, "compatible", &cplen);
-	if (cp == NULL)
-		return 0;
-	while (cplen > 0) {
-		if (strncasecmp(cp, compat, strlen(compat)) == 0)
-			return 1;
-		l = strlen(cp) + 1;
-		cp += l;
-		cplen -= l;
-	}
-
-	return 0;
-}
-
-static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
-					unsigned long align)
-{
-	void *res;
-
-	*mem = _ALIGN(*mem, align);
-	res = (void *)*mem;
-	*mem += size;
-
-	return res;
-}
-
-static unsigned long __init unflatten_dt_node(unsigned long mem,
-					unsigned long *p,
-					struct device_node *dad,
-					struct device_node ***allnextpp,
-					unsigned long fpsize)
-{
-	struct device_node *np;
-	struct property *pp, **prev_pp = NULL;
-	char *pathp;
-	u32 tag;
-	unsigned int l, allocl;
-	int has_name = 0;
-	int new_format = 0;
-
-	tag = *((u32 *)(*p));
-	if (tag != OF_DT_BEGIN_NODE) {
-		printk("Weird tag at start of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	pathp = (char *)*p;
-	l = allocl = strlen(pathp) + 1;
-	*p = _ALIGN(*p + l, 4);
-
-	/* version 0x10 has a more compact unit name here instead of the full
-	 * path. we accumulate the full path size using "fpsize", we'll rebuild
-	 * it later. We detect this because the first character of the name is
-	 * not '/'.
-	 */
-	if ((*pathp) != '/') {
-		new_format = 1;
-		if (fpsize == 0) {
-			/* root node: special case. fpsize accounts for path
-			 * plus terminating zero. root node only has '/', so
-			 * fpsize should be 2, but we want to avoid the first
-			 * level nodes to have two '/' so we use fpsize 1 here
-			 */
-			fpsize = 1;
-			allocl = 2;
-		} else {
-			/* account for '/' and path size minus terminal 0
-			 * already in 'l'
-			 */
-			fpsize += l;
-			allocl = fpsize;
-		}
-	}
-
-	np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
-				__alignof__(struct device_node));
-	if (allnextpp) {
-		memset(np, 0, sizeof(*np));
-		np->full_name = ((char *)np) + sizeof(struct device_node);
-		if (new_format) {
-			char *p2 = np->full_name;
-			/* rebuild full path for new format */
-			if (dad && dad->parent) {
-				strcpy(p2, dad->full_name);
-#ifdef DEBUG
-				if ((strlen(p2) + l + 1) != allocl) {
-					pr_debug("%s: p: %d, l: %d, a: %d\n",
-						pathp, (int)strlen(p2),
-						l, allocl);
-				}
-#endif
-				p2 += strlen(p2);
-			}
-			*(p2++) = '/';
-			memcpy(p2, pathp, l);
-		} else
-			memcpy(np->full_name, pathp, l);
-		prev_pp = &np->properties;
-		**allnextpp = np;
-		*allnextpp = &np->allnext;
-		if (dad != NULL) {
-			np->parent = dad;
-			/* we temporarily use the next field as `last_child'*/
-			if (dad->next == NULL)
-				dad->child = np;
-			else
-				dad->next->sibling = np;
-			dad->next = np;
-		}
-		kref_init(&np->kref);
-	}
-	while (1) {
-		u32 sz, noff;
-		char *pname;
-
-		tag = *((u32 *)(*p));
-		if (tag == OF_DT_NOP) {
-			*p += 4;
-			continue;
-		}
-		if (tag != OF_DT_PROP)
-			break;
-		*p += 4;
-		sz = *((u32 *)(*p));
-		noff = *((u32 *)((*p) + 4));
-		*p += 8;
-		if (initial_boot_params->version < 0x10)
-			*p = _ALIGN(*p, sz >= 8 ? 8 : 4);
-
-		pname = find_flat_dt_string(noff);
-		if (pname == NULL) {
-			printk(KERN_INFO
-				"Can't find property name in list !\n");
-			break;
-		}
-		if (strcmp(pname, "name") == 0)
-			has_name = 1;
-		l = strlen(pname) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property),
-					__alignof__(struct property));
-		if (allnextpp) {
-			if (strcmp(pname, "linux,phandle") == 0) {
-				np->node = *((u32 *)*p);
-				if (np->linux_phandle == 0)
-					np->linux_phandle = np->node;
-			}
-			if (strcmp(pname, "ibm,phandle") == 0)
-				np->linux_phandle = *((u32 *)*p);
-			pp->name = pname;
-			pp->length = sz;
-			pp->value = (void *)*p;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-		}
-		*p = _ALIGN((*p) + sz, 4);
-	}
-	/* with version 0x10 we may not have the name property, recreate
-	 * it here from the unit name if absent
-	 */
-	if (!has_name) {
-		char *p1 = pathp, *ps = pathp, *pa = NULL;
-		int sz;
-
-		while (*p1) {
-			if ((*p1) == '@')
-				pa = p1;
-			if ((*p1) == '/')
-				ps = p1 + 1;
-			p1++;
-		}
-		if (pa < ps)
-			pa = p1;
-		sz = (pa - ps) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
-					__alignof__(struct property));
-		if (allnextpp) {
-			pp->name = "name";
-			pp->length = sz;
-			pp->value = pp + 1;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-			memcpy(pp->value, ps, sz - 1);
-			((char *)pp->value)[sz - 1] = 0;
-			pr_debug("fixed up name for %s -> %s\n", pathp,
-				(char *)pp->value);
-		}
-	}
-	if (allnextpp) {
-		*prev_pp = NULL;
-		np->name = of_get_property(np, "name", NULL);
-		np->type = of_get_property(np, "device_type", NULL);
-
-		if (!np->name)
-			np->name = "<NULL>";
-		if (!np->type)
-			np->type = "<NULL>";
-	}
-	while (tag == OF_DT_BEGIN_NODE) {
-		mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
-		tag = *((u32 *)(*p));
-	}
-	if (tag != OF_DT_END_NODE) {
-		printk(KERN_INFO "Weird tag at end of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	return mem;
-}
-
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-	unsigned long start, mem, size;
-	struct device_node **allnextp = &allnodes;
-
-	pr_debug(" -> unflatten_device_tree()\n");
-
-	/* First pass, scan for size */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-	size = (size | 3) + 1;
-
-	pr_debug("  size is %lx, allocating...\n", size);
-
-	/* Allocate memory for the expanded device tree */
-	mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-	mem = (unsigned long) __va(mem);
-
-	((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-	pr_debug("  unflattening %lx...\n", mem);
-
-	/* Second pass, do actual unflattening */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-	if (*((u32 *)start) != OF_DT_END)
-		printk(KERN_WARNING "Weird tag at end of tree: %08x\n",
-			*((u32 *)start));
-	if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-		printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-			((u32 *)mem)[size / 4]);
-	*allnextp = NULL;
-
-	/* Get pointer to OF "/chosen" node for use everywhere */
-	of_chosen = of_find_node_by_path("/chosen");
-	if (of_chosen == NULL)
-		of_chosen = of_find_node_by_path("/chosen@0");
-
-	pr_debug(" <- unflatten_device_tree()\n");
-}
-
-#define early_init_dt_scan_drconf_memory(node) 0
-
-static int __init early_init_dt_scan_cpus(unsigned long node,
-					  const char *uname, int depth,
-					  void *data)
-{
-	static int logical_cpuid;
-	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	const u32 *intserv;
-	int i, nthreads;
-	int found = 0;
-
-	/* We are scanning "cpu" nodes only */
-	if (type == NULL || strcmp(type, "cpu") != 0)
-		return 0;
-
-	/* Get physical cpuid */
-	intserv = of_get_flat_dt_prop(node, "reg", NULL);
-	nthreads = 1;
-
-	/*
-	 * Now see if any of these threads match our boot cpu.
-	 * NOTE: This must match the parsing done in smp_setup_cpu_maps.
-	 */
-	for (i = 0; i < nthreads; i++) {
-		/*
-		 * version 2 of the kexec param format adds the phys cpuid of
-		 * booted proc.
-		 */
-		if (initial_boot_params && initial_boot_params->version >= 2) {
-			if (intserv[i] ==
-					initial_boot_params->boot_cpuid_phys) {
-				found = 1;
-				break;
-			}
-		} else {
-			/*
-			 * Check if it's the boot-cpu, set it's hw index now,
-			 * unfortunately this format did not support booting
-			 * off secondary threads.
-			 */
-			if (of_get_flat_dt_prop(node,
-					"linux,boot-cpu", NULL) != NULL) {
-				found = 1;
-				break;
-			}
-		}
-
-#ifdef CONFIG_SMP
-		/* logical cpu id is always 0 on UP kernels */
-		logical_cpuid++;
-#endif
-	}
-
-	if (found) {
-		pr_debug("boot cpu: logical %d physical %d\n", logical_cpuid,
-			intserv[i]);
-		boot_cpuid = logical_cpuid;
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-static void __init early_init_dt_check_for_initrd(unsigned long node)
-{
-	unsigned long l;
-	u32 *prop;
-
-	pr_debug("Looking for initrd properties... ");
-
-	prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
-	if (prop) {
-		initrd_start = (unsigned long)
-					__va((u32)of_read_ulong(prop, l/4));
-
-		prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
-		if (prop) {
-			initrd_end = (unsigned long)
-					__va((u32)of_read_ulong(prop, 1/4));
-			initrd_below_start_ok = 1;
-		} else {
-			initrd_start = 0;
-		}
-	}
-
-	pr_debug("initrd_start=0x%lx  initrd_end=0x%lx\n",
-					initrd_start, initrd_end);
-}
-#else
-static inline void early_init_dt_check_for_initrd(unsigned long node)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-static int __init early_init_dt_scan_chosen(unsigned long node,
-				const char *uname, int depth, void *data)
-{
-	unsigned long l;
-	char *p;
-
-	pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
-
-	if (depth != 1 ||
-		(strcmp(uname, "chosen") != 0 &&
-				strcmp(uname, "chosen@0") != 0))
-		return 0;
-
-#ifdef CONFIG_KEXEC
-	lprop = (u64 *)of_get_flat_dt_prop(node,
-				"linux,crashkernel-base", NULL);
-	if (lprop)
-		crashk_res.start = *lprop;
-
-	lprop = (u64 *)of_get_flat_dt_prop(node,
-				"linux,crashkernel-size", NULL);
-	if (lprop)
-		crashk_res.end = crashk_res.start + *lprop - 1;
-#endif
-
-	early_init_dt_check_for_initrd(node);
-
-	/* Retreive command line */
-	p = of_get_flat_dt_prop(node, "bootargs", &l);
-	if (p != NULL && l > 0)
-		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
-
-#ifdef CONFIG_CMDLINE
-#ifndef CONFIG_CMDLINE_FORCE
-	if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
-#endif
-		strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif /* CONFIG_CMDLINE */
-
-	pr_debug("Command line is: %s\n", cmd_line);
-
-	/* break now */
-	return 1;
-}
-
-static int __init early_init_dt_scan_root(unsigned long node,
-				const char *uname, int depth, void *data)
-{
-	u32 *prop;
-
-	if (depth != 0)
-		return 0;
-
-	prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
-	dt_root_size_cells = (prop == NULL) ? 1 : *prop;
-	pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
-
-	prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
-	dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
-	pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
-
-	/* break now */
-	return 1;
-}
-
-static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
+void __init early_init_dt_scan_chosen_arch(unsigned long node)
 {
-	cell_t *p = *cellp;
-
-	*cellp = p + s;
-	return of_read_number(p, s);
+	/* No Microblaze specific code here */
 }
 
-static int __init early_init_dt_scan_memory(unsigned long node,
-				const char *uname, int depth, void *data)
+void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
-	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	cell_t *reg, *endp;
-	unsigned long l;
-
-	/* Look for the ibm,dynamic-reconfiguration-memory node */
-/*	if (depth == 1 &&
-		strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
-		return early_init_dt_scan_drconf_memory(node);
-*/
-	/* We are scanning "memory" nodes only */
-	if (type == NULL) {
-		/*
-		 * The longtrail doesn't have a device_type on the
-		 * /memory node, so look for the node called /memory@0.
-		 */
-		if (depth != 1 || strcmp(uname, "memory@0") != 0)
-			return 0;
-	} else if (strcmp(type, "memory") != 0)
-		return 0;
-
-	reg = (cell_t *)of_get_flat_dt_prop(node, "linux,usable-memory", &l);
-	if (reg == NULL)
-		reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
-	if (reg == NULL)
-		return 0;
-
-	endp = reg + (l / sizeof(cell_t));
-
-	pr_debug("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
-		uname, l, reg[0], reg[1], reg[2], reg[3]);
-
-	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
-		u64 base, size;
-
-		base = dt_mem_next_cell(dt_root_addr_cells, &reg);
-		size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-		if (size == 0)
-			continue;
-		pr_debug(" - %llx ,  %llx\n", (unsigned long long)base,
-			(unsigned long long)size);
-
-		lmb_add(base, size);
-	}
-	return 0;
+	lmb_add(base, size);
 }
 
-#ifdef CONFIG_PHYP_DUMP
-/**
- * phyp_dump_calculate_reserve_size() - reserve variable boot area 5% or arg
- *
- * Function to find the largest size we need to reserve
- * during early boot process.
- *
- * It either looks for boot param and returns that OR
- * returns larger of 256 or 5% rounded down to multiples of 256MB.
- *
- */
-static inline unsigned long phyp_dump_calculate_reserve_size(void)
+u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 {
-	unsigned long tmp;
-
-	if (phyp_dump_info->reserve_bootvar)
-		return phyp_dump_info->reserve_bootvar;
-
-	/* divide by 20 to get 5% of value */
-	tmp = lmb_end_of_DRAM();
-	do_div(tmp, 20);
-
-	/* round it down in multiples of 256 */
-	tmp = tmp & ~0x0FFFFFFFUL;
-
-	return (tmp > PHYP_DUMP_RMR_END ? tmp : PHYP_DUMP_RMR_END);
+	return lmb_alloc(size, align);
 }
 
-/**
- * phyp_dump_reserve_mem() - reserve all not-yet-dumped mmemory
- *
- * This routine may reserve memory regions in the kernel only
- * if the system is supported and a dump was taken in last
- * boot instance or if the hardware is supported and the
- * scratch area needs to be setup. In other instances it returns
- * without reserving anything. The memory in case of dump being
- * active is freed when the dump is collected (by userland tools).
- */
-static void __init phyp_dump_reserve_mem(void)
-{
-	unsigned long base, size;
-	unsigned long variable_reserve_size;
-
-	if (!phyp_dump_info->phyp_dump_configured) {
-		printk(KERN_ERR "Phyp-dump not supported on this hardware\n");
-		return;
-	}
-
-	if (!phyp_dump_info->phyp_dump_at_boot) {
-		printk(KERN_INFO "Phyp-dump disabled at boot time\n");
-		return;
-	}
-
-	variable_reserve_size = phyp_dump_calculate_reserve_size();
-
-	if (phyp_dump_info->phyp_dump_is_active) {
-		/* Reserve *everything* above RMR.Area freed by userland tools*/
-		base = variable_reserve_size;
-		size = lmb_end_of_DRAM() - base;
-
-		/* XXX crashed_ram_end is wrong, since it may be beyond
-		 * the memory_limit, it will need to be adjusted. */
-		lmb_reserve(base, size);
-
-		phyp_dump_info->init_reserve_start = base;
-		phyp_dump_info->init_reserve_size = size;
-	} else {
-		size = phyp_dump_info->cpu_state_size +
-			phyp_dump_info->hpte_region_size +
-			variable_reserve_size;
-		base = lmb_end_of_DRAM() - size;
-		lmb_reserve(base, size);
-		phyp_dump_info->init_reserve_start = base;
-		phyp_dump_info->init_reserve_size = size;
-	}
-}
-#else
-static inline void __init phyp_dump_reserve_mem(void) {}
-#endif /* CONFIG_PHYP_DUMP  && CONFIG_PPC_RTAS */
-
 #ifdef CONFIG_EARLY_PRINTK
 /* MS this is Microblaze specifig function */
 static int __init early_init_dt_scan_serial(unsigned long node,
@@ -775,11 +98,6 @@ void __init early_init_devtree(void *params)
 	/* Setup flat device-tree pointer */
 	initial_boot_params = params;
 
-#ifdef CONFIG_PHYP_DUMP
-	/* scan tree to see if dump occured during last boot */
-	of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
-#endif
-
 	/* Retrieve various informations from the /chosen node of the
 	 * device-tree, including the platform type, initrd location and
 	 * size, TCE reserve, and more ...
@@ -799,33 +117,18 @@ void __init early_init_devtree(void *params)
 
 	pr_debug("Phys. mem: %lx\n", (unsigned long) lmb_phys_mem_size());
 
-	pr_debug("Scanning CPUs ...\n");
-
-	/* Retreive CPU related informations from the flat tree
-	 * (altivec support, boot CPU ID, ...)
-	 */
-	of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
-
 	pr_debug(" <- early_init_devtree()\n");
 }
 
-/**
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int machine_is_compatible(const char *compat)
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init early_init_dt_setup_initrd_arch(unsigned long start,
+		unsigned long end)
 {
-	struct device_node *root;
-	int rc = 0;
-
-	root = of_find_node_by_path("/");
-	if (root) {
-		rc = of_device_is_compatible(root, compat);
-		of_node_put(root);
-	}
-	return rc;
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
 }
-EXPORT_SYMBOL(machine_is_compatible);
+#endif
 
 /*******
  *
@@ -838,273 +141,6 @@ EXPORT_SYMBOL(machine_is_compatible);
  *
  *******/
 
-/**
- *	of_find_node_by_phandle - Find a node given a phandle
- *	@handle:	phandle of the node to find
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-	struct device_node *np;
-
-	read_lock(&devtree_lock);
-	for (np = allnodes; np != NULL; np = np->allnext)
-		if (np->linux_phandle == handle)
-			break;
-	of_node_get(np);
-	read_unlock(&devtree_lock);
-	return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
-/**
- *	of_node_get - Increment refcount of a node
- *	@node:	Node to inc refcount, NULL is supported to
- *		simplify writing of callers
- *
- *	Returns node.
- */
-struct device_node *of_node_get(struct device_node *node)
-{
-	if (node)
-		kref_get(&node->kref);
-	return node;
-}
-EXPORT_SYMBOL(of_node_get);
-
-static inline struct device_node *kref_to_device_node(struct kref *kref)
-{
-	return container_of(kref, struct device_node, kref);
-}
-
-/**
- *	of_node_release - release a dynamically allocated node
- *	@kref:  kref element of the node to be released
- *
- *	In of_node_put() this function is passed to kref_put()
- *	as the destructor.
- */
-static void of_node_release(struct kref *kref)
-{
-	struct device_node *node = kref_to_device_node(kref);
-	struct property *prop = node->properties;
-
-	/* We should never be releasing nodes that haven't been detached. */
-	if (!of_node_check_flag(node, OF_DETACHED)) {
-		printk(KERN_INFO "WARNING: Bad of_node_put() on %s\n",
-			node->full_name);
-		dump_stack();
-		kref_init(&node->kref);
-		return;
-	}
-
-	if (!of_node_check_flag(node, OF_DYNAMIC))
-		return;
-
-	while (prop) {
-		struct property *next = prop->next;
-		kfree(prop->name);
-		kfree(prop->value);
-		kfree(prop);
-		prop = next;
-
-		if (!prop) {
-			prop = node->deadprops;
-			node->deadprops = NULL;
-		}
-	}
-	kfree(node->full_name);
-	kfree(node->data);
-	kfree(node);
-}
-
-/**
- *	of_node_put - Decrement refcount of a node
- *	@node:	Node to dec refcount, NULL is supported to
- *		simplify writing of callers
- *
- */
-void of_node_put(struct device_node *node)
-{
-	if (node)
-		kref_put(&node->kref, of_node_release);
-}
-EXPORT_SYMBOL(of_node_put);
-
-/*
- * Plug a device node into the tree and global list.
- */
-void of_attach_node(struct device_node *np)
-{
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	np->sibling = np->parent->child;
-	np->allnext = allnodes;
-	np->parent->child = np;
-	allnodes = np;
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
-/*
- * "Unplug" a node from the device tree.  The caller must hold
- * a reference to the node.  The memory associated with the node
- * is not freed until its refcount goes to zero.
- */
-void of_detach_node(struct device_node *np)
-{
-	struct device_node *parent;
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-
-	parent = np->parent;
-	if (!parent)
-		goto out_unlock;
-
-	if (allnodes == np)
-		allnodes = np->allnext;
-	else {
-		struct device_node *prev;
-		for (prev = allnodes;
-		     prev->allnext != np;
-		     prev = prev->allnext)
-			;
-		prev->allnext = np->allnext;
-	}
-
-	if (parent->child == np)
-		parent->child = np->sibling;
-	else {
-		struct device_node *prevsib;
-		for (prevsib = np->parent->child;
-		     prevsib->sibling != np;
-		     prevsib = prevsib->sibling)
-			;
-		prevsib->sibling = np->sibling;
-	}
-
-	of_node_set_flag(np, OF_DETACHED);
-
-out_unlock:
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
-/*
- * Add a property to a node
- */
-int prom_add_property(struct device_node *np, struct property *prop)
-{
-	struct property **next;
-	unsigned long flags;
-
-	prop->next = NULL;
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (strcmp(prop->name, (*next)->name) == 0) {
-			/* duplicate ! don't insert it */
-			write_unlock_irqrestore(&devtree_lock, flags);
-			return -1;
-		}
-		next = &(*next)->next;
-	}
-	*next = prop;
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_add_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Remove a property from a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, so it won't be found any more.
- */
-int prom_remove_property(struct device_node *np, struct property *prop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == prop) {
-			/* found the node */
-			*next = prop->next;
-			prop->next = np->deadprops;
-			np->deadprops = prop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to remove the proc node as well */
-	if (np->pde)
-		proc_device_tree_remove_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Update a property in a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, and add the new property to the
- * property list
- */
-int prom_update_property(struct device_node *np,
-			 struct property *newprop,
-			 struct property *oldprop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == oldprop) {
-			/* found the node */
-			newprop->next = oldprop->next;
-			*next = newprop;
-			oldprop->next = np->deadprops;
-			np->deadprops = oldprop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_update_prop(np->pde, newprop, oldprop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
 #if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
 static struct debugfs_blob_wrapper flat_dt_blob;
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index ba3948c7007..50c9af43e01 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -173,6 +173,7 @@ config PPC_OF
 
 config OF
 	def_bool y
+	select OF_FLATTREE
 
 config PPC_UDBG_16550
 	bool
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 2ab9cbd9882..ddd408a93b5 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -23,21 +23,8 @@
 #include <asm/irq.h>
 #include <asm/atomic.h>
 
-#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT	1
-#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT	1
-
-#define of_compat_cmp(s1, s2, l)	strcasecmp((s1), (s2))
-#define of_prop_cmp(s1, s2)		strcmp((s1), (s2))
-#define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
-
-extern struct device_node *of_chosen;
-
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
-/* For updating the device tree at runtime */
-extern void of_attach_node(struct device_node *);
-extern void of_detach_node(struct device_node *);
-
 #ifdef CONFIG_PPC32
 /*
  * PCI <-> OF matching functions
@@ -52,11 +39,6 @@ extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
 extern void pci_create_OF_bus_map(void);
 #endif
 
-extern struct resource *request_OF_resource(struct device_node* node,
-				int index, const char* name_postfix);
-extern int release_OF_resource(struct device_node* node, int index);
-
-
 /*
  * OF address retreival & translation
  */
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index 1a4fc0d11a0..666d08db319 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -214,7 +214,7 @@ EXPORT_SYMBOL(of_find_device_by_node);
 static int of_dev_phandle_match(struct device *dev, void *data)
 {
 	phandle *ph = data;
-	return to_of_device(dev)->node->linux_phandle == *ph;
+	return to_of_device(dev)->node->phandle == *ph;
 }
 
 struct of_device *of_find_device_by_phandle(phandle ph)
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index ccf56ac92de..d43fc65749c 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -224,7 +224,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
 	 * G5 machines... So when something asks for bus 0 io base
 	 * (bus 0 is HT root), we return the AGP one instead.
 	 */
-	if (in_bus == 0 && machine_is_compatible("MacRISC4")) {
+	if (in_bus == 0 && of_machine_is_compatible("MacRISC4")) {
 		struct device_node *agp;
 
 		agp = of_find_compatible_node(NULL, NULL, "u3-agp");
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 4ec30086246..43238b2054b 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -61,365 +61,12 @@
 #define DBG(fmt...)
 #endif
 
-
-static int __initdata dt_root_addr_cells;
-static int __initdata dt_root_size_cells;
-
 #ifdef CONFIG_PPC64
 int __initdata iommu_is_off;
 int __initdata iommu_force_on;
 unsigned long tce_alloc_start, tce_alloc_end;
 #endif
 
-typedef u32 cell_t;
-
-#if 0
-static struct boot_param_header *initial_boot_params __initdata;
-#else
-struct boot_param_header *initial_boot_params;
-#endif
-
-extern struct device_node *allnodes;	/* temporary while merging */
-
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
-/* export that to outside world */
-struct device_node *of_chosen;
-
-static inline char *find_flat_dt_string(u32 offset)
-{
-	return ((char *)initial_boot_params) +
-		initial_boot_params->off_dt_strings + offset;
-}
-
-/**
- * This function is used to scan the flattened device-tree, it is
- * used to extract the memory informations at boot before we can
- * unflatten the tree
- */
-int __init of_scan_flat_dt(int (*it)(unsigned long node,
-				     const char *uname, int depth,
-				     void *data),
-			   void *data)
-{
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	int rc = 0;
-	int depth = -1;
-
-	do {
-		u32 tag = *((u32 *)p);
-		char *pathp;
-		
-		p += 4;
-		if (tag == OF_DT_END_NODE) {
-			depth --;
-			continue;
-		}
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag == OF_DT_END)
-			break;
-		if (tag == OF_DT_PROP) {
-			u32 sz = *((u32 *)p);
-			p += 8;
-			if (initial_boot_params->version < 0x10)
-				p = _ALIGN(p, sz >= 8 ? 8 : 4);
-			p += sz;
-			p = _ALIGN(p, 4);
-			continue;
-		}
-		if (tag != OF_DT_BEGIN_NODE) {
-			printk(KERN_WARNING "Invalid tag %x scanning flattened"
-			       " device tree !\n", tag);
-			return -EINVAL;
-		}
-		depth++;
-		pathp = (char *)p;
-		p = _ALIGN(p + strlen(pathp) + 1, 4);
-		if ((*pathp) == '/') {
-			char *lp, *np;
-			for (lp = NULL, np = pathp; *np; np++)
-				if ((*np) == '/')
-					lp = np+1;
-			if (lp != NULL)
-				pathp = lp;
-		}
-		rc = it(p, pathp, depth, data);
-		if (rc != 0)
-			break;		
-	} while(1);
-
-	return rc;
-}
-
-unsigned long __init of_get_flat_dt_root(void)
-{
-	unsigned long p = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-
-	while(*((u32 *)p) == OF_DT_NOP)
-		p += 4;
-	BUG_ON (*((u32 *)p) != OF_DT_BEGIN_NODE);
-	p += 4;
-	return _ALIGN(p + strlen((char *)p) + 1, 4);
-}
-
-/**
- * This  function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
-				 unsigned long *size)
-{
-	unsigned long p = node;
-
-	do {
-		u32 tag = *((u32 *)p);
-		u32 sz, noff;
-		const char *nstr;
-
-		p += 4;
-		if (tag == OF_DT_NOP)
-			continue;
-		if (tag != OF_DT_PROP)
-			return NULL;
-
-		sz = *((u32 *)p);
-		noff = *((u32 *)(p + 4));
-		p += 8;
-		if (initial_boot_params->version < 0x10)
-			p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-		nstr = find_flat_dt_string(noff);
-		if (nstr == NULL) {
-			printk(KERN_WARNING "Can't find property index"
-			       " name !\n");
-			return NULL;
-		}
-		if (strcmp(name, nstr) == 0) {
-			if (size)
-				*size = sz;
-			return (void *)p;
-		}
-		p += sz;
-		p = _ALIGN(p, 4);
-	} while(1);
-}
-
-int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
-{
-	const char* cp;
-	unsigned long cplen, l;
-
-	cp = of_get_flat_dt_prop(node, "compatible", &cplen);
-	if (cp == NULL)
-		return 0;
-	while (cplen > 0) {
-		if (strncasecmp(cp, compat, strlen(compat)) == 0)
-			return 1;
-		l = strlen(cp) + 1;
-		cp += l;
-		cplen -= l;
-	}
-
-	return 0;
-}
-
-static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
-				       unsigned long align)
-{
-	void *res;
-
-	*mem = _ALIGN(*mem, align);
-	res = (void *)*mem;
-	*mem += size;
-
-	return res;
-}
-
-static unsigned long __init unflatten_dt_node(unsigned long mem,
-					      unsigned long *p,
-					      struct device_node *dad,
-					      struct device_node ***allnextpp,
-					      unsigned long fpsize)
-{
-	struct device_node *np;
-	struct property *pp, **prev_pp = NULL;
-	char *pathp;
-	u32 tag;
-	unsigned int l, allocl;
-	int has_name = 0;
-	int new_format = 0;
-
-	tag = *((u32 *)(*p));
-	if (tag != OF_DT_BEGIN_NODE) {
-		printk("Weird tag at start of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	pathp = (char *)*p;
-	l = allocl = strlen(pathp) + 1;
-	*p = _ALIGN(*p + l, 4);
-
-	/* version 0x10 has a more compact unit name here instead of the full
-	 * path. we accumulate the full path size using "fpsize", we'll rebuild
-	 * it later. We detect this because the first character of the name is
-	 * not '/'.
-	 */
-	if ((*pathp) != '/') {
-		new_format = 1;
-		if (fpsize == 0) {
-			/* root node: special case. fpsize accounts for path
-			 * plus terminating zero. root node only has '/', so
-			 * fpsize should be 2, but we want to avoid the first
-			 * level nodes to have two '/' so we use fpsize 1 here
-			 */
-			fpsize = 1;
-			allocl = 2;
-		} else {
-			/* account for '/' and path size minus terminal 0
-			 * already in 'l'
-			 */
-			fpsize += l;
-			allocl = fpsize;
-		}
-	}
-
-
-	np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
-				__alignof__(struct device_node));
-	if (allnextpp) {
-		memset(np, 0, sizeof(*np));
-		np->full_name = ((char*)np) + sizeof(struct device_node);
-		if (new_format) {
-			char *p = np->full_name;
-			/* rebuild full path for new format */
-			if (dad && dad->parent) {
-				strcpy(p, dad->full_name);
-#ifdef DEBUG
-				if ((strlen(p) + l + 1) != allocl) {
-					DBG("%s: p: %d, l: %d, a: %d\n",
-					    pathp, (int)strlen(p), l, allocl);
-				}
-#endif
-				p += strlen(p);
-			}
-			*(p++) = '/';
-			memcpy(p, pathp, l);
-		} else
-			memcpy(np->full_name, pathp, l);
-		prev_pp = &np->properties;
-		**allnextpp = np;
-		*allnextpp = &np->allnext;
-		if (dad != NULL) {
-			np->parent = dad;
-			/* we temporarily use the next field as `last_child'*/
-			if (dad->next == 0)
-				dad->child = np;
-			else
-				dad->next->sibling = np;
-			dad->next = np;
-		}
-		kref_init(&np->kref);
-	}
-	while(1) {
-		u32 sz, noff;
-		char *pname;
-
-		tag = *((u32 *)(*p));
-		if (tag == OF_DT_NOP) {
-			*p += 4;
-			continue;
-		}
-		if (tag != OF_DT_PROP)
-			break;
-		*p += 4;
-		sz = *((u32 *)(*p));
-		noff = *((u32 *)((*p) + 4));
-		*p += 8;
-		if (initial_boot_params->version < 0x10)
-			*p = _ALIGN(*p, sz >= 8 ? 8 : 4);
-
-		pname = find_flat_dt_string(noff);
-		if (pname == NULL) {
-			printk("Can't find property name in list !\n");
-			break;
-		}
-		if (strcmp(pname, "name") == 0)
-			has_name = 1;
-		l = strlen(pname) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property),
-					__alignof__(struct property));
-		if (allnextpp) {
-			if (strcmp(pname, "linux,phandle") == 0) {
-				np->node = *((u32 *)*p);
-				if (np->linux_phandle == 0)
-					np->linux_phandle = np->node;
-			}
-			if (strcmp(pname, "ibm,phandle") == 0)
-				np->linux_phandle = *((u32 *)*p);
-			pp->name = pname;
-			pp->length = sz;
-			pp->value = (void *)*p;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-		}
-		*p = _ALIGN((*p) + sz, 4);
-	}
-	/* with version 0x10 we may not have the name property, recreate
-	 * it here from the unit name if absent
-	 */
-	if (!has_name) {
-		char *p = pathp, *ps = pathp, *pa = NULL;
-		int sz;
-
-		while (*p) {
-			if ((*p) == '@')
-				pa = p;
-			if ((*p) == '/')
-				ps = p + 1;
-			p++;
-		}
-		if (pa < ps)
-			pa = p;
-		sz = (pa - ps) + 1;
-		pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
-					__alignof__(struct property));
-		if (allnextpp) {
-			pp->name = "name";
-			pp->length = sz;
-			pp->value = pp + 1;
-			*prev_pp = pp;
-			prev_pp = &pp->next;
-			memcpy(pp->value, ps, sz - 1);
-			((char *)pp->value)[sz - 1] = 0;
-			DBG("fixed up name for %s -> %s\n", pathp,
-				(char *)pp->value);
-		}
-	}
-	if (allnextpp) {
-		*prev_pp = NULL;
-		np->name = of_get_property(np, "name", NULL);
-		np->type = of_get_property(np, "device_type", NULL);
-
-		if (!np->name)
-			np->name = "<NULL>";
-		if (!np->type)
-			np->type = "<NULL>";
-	}
-	while (tag == OF_DT_BEGIN_NODE) {
-		mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
-		tag = *((u32 *)(*p));
-	}
-	if (tag != OF_DT_END_NODE) {
-		printk("Weird tag at end of node: %x\n", tag);
-		return mem;
-	}
-	*p += 4;
-	return mem;
-}
-
 static int __init early_parse_mem(char *p)
 {
 	if (!p)
@@ -446,7 +93,7 @@ static void __init move_device_tree(void)
 	DBG("-> move_device_tree\n");
 
 	start = __pa(initial_boot_params);
-	size = initial_boot_params->totalsize;
+	size = be32_to_cpu(initial_boot_params->totalsize);
 
 	if ((memory_limit && (start + size) > memory_limit) ||
 			overlaps_crashkernel(start, size)) {
@@ -459,54 +106,6 @@ static void __init move_device_tree(void)
 	DBG("<- move_device_tree\n");
 }
 
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-	unsigned long start, mem, size;
-	struct device_node **allnextp = &allnodes;
-
-	DBG(" -> unflatten_device_tree()\n");
-
-	/* First pass, scan for size */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-	size = (size | 3) + 1;
-
-	DBG("  size is %lx, allocating...\n", size);
-
-	/* Allocate memory for the expanded device tree */
-	mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-	mem = (unsigned long) __va(mem);
-
-	((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-	DBG("  unflattening %lx...\n", mem);
-
-	/* Second pass, do actual unflattening */
-	start = ((unsigned long)initial_boot_params) +
-		initial_boot_params->off_dt_struct;
-	unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-	if (*((u32 *)start) != OF_DT_END)
-		printk(KERN_WARNING "Weird tag at end of tree: %08x\n", *((u32 *)start));
-	if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-		printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-		       ((u32 *)mem)[size / 4] );
-	*allnextp = NULL;
-
-	/* Get pointer to OF "/chosen" node for use everywhere */
-	of_chosen = of_find_node_by_path("/chosen");
-	if (of_chosen == NULL)
-		of_chosen = of_find_node_by_path("/chosen@0");
-
-	DBG(" <- unflatten_device_tree()\n");
-}
-
 /*
  * ibm,pa-features is a per-cpu property that contains a string of
  * attribute descriptors, each of which has a 2 byte header plus up
@@ -763,48 +362,9 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
 	return 0;
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-static void __init early_init_dt_check_for_initrd(unsigned long node)
-{
-	unsigned long l;
-	u32 *prop;
-
-	DBG("Looking for initrd properties... ");
-
-	prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
-	if (prop) {
-		initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4));
-
-		prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
-		if (prop) {
-			initrd_end = (unsigned long)
-					__va(of_read_ulong(prop, l/4));
-			initrd_below_start_ok = 1;
-		} else {
-			initrd_start = 0;
-		}
-	}
-
-	DBG("initrd_start=0x%lx  initrd_end=0x%lx\n", initrd_start, initrd_end);
-}
-#else
-static inline void early_init_dt_check_for_initrd(unsigned long node)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-static int __init early_init_dt_scan_chosen(unsigned long node,
-					    const char *uname, int depth, void *data)
+void __init early_init_dt_scan_chosen_arch(unsigned long node)
 {
 	unsigned long *lprop;
-	unsigned long l;
-	char *p;
-
-	DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
-
-	if (depth != 1 ||
-	    (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
-		return 0;
 
 #ifdef CONFIG_PPC64
 	/* check if iommu is forced on or off */
@@ -815,17 +375,17 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
 #endif
 
 	/* mem=x on the command line is the preferred mechanism */
- 	lprop = of_get_flat_dt_prop(node, "linux,memory-limit", NULL);
- 	if (lprop)
- 		memory_limit = *lprop;
+	lprop = of_get_flat_dt_prop(node, "linux,memory-limit", NULL);
+	if (lprop)
+		memory_limit = *lprop;
 
 #ifdef CONFIG_PPC64
- 	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-start", NULL);
- 	if (lprop)
- 		tce_alloc_start = *lprop;
- 	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-end", NULL);
- 	if (lprop)
- 		tce_alloc_end = *lprop;
+	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-start", NULL);
+	if (lprop)
+		tce_alloc_start = *lprop;
+	lprop = of_get_flat_dt_prop(node, "linux,tce-alloc-end", NULL);
+	if (lprop)
+		tce_alloc_end = *lprop;
 #endif
 
 #ifdef CONFIG_KEXEC
@@ -837,51 +397,6 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
 	if (lprop)
 		crashk_res.end = crashk_res.start + *lprop - 1;
 #endif
-
-	early_init_dt_check_for_initrd(node);
-
-	/* Retreive command line */
- 	p = of_get_flat_dt_prop(node, "bootargs", &l);
-	if (p != NULL && l > 0)
-		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
-
-#ifdef CONFIG_CMDLINE
-	if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
-		strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif /* CONFIG_CMDLINE */
-
-	DBG("Command line is: %s\n", cmd_line);
-
-	/* break now */
-	return 1;
-}
-
-static int __init early_init_dt_scan_root(unsigned long node,
-					  const char *uname, int depth, void *data)
-{
-	u32 *prop;
-
-	if (depth != 0)
-		return 0;
-
-	prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
-	dt_root_size_cells = (prop == NULL) ? 1 : *prop;
-	DBG("dt_root_size_cells = %x\n", dt_root_size_cells);
-
-	prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
-	dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
-	DBG("dt_root_addr_cells = %x\n", dt_root_addr_cells);
-	
-	/* break now */
-	return 1;
-}
-
-static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
-{
-	cell_t *p = *cellp;
-
-	*cellp = p + s;
-	return of_read_number(p, s);
 }
 
 #ifdef CONFIG_PPC_PSERIES
@@ -893,22 +408,22 @@ static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
  */
 static int __init early_init_dt_scan_drconf_memory(unsigned long node)
 {
-	cell_t *dm, *ls, *usm;
+	__be32 *dm, *ls, *usm;
 	unsigned long l, n, flags;
 	u64 base, size, lmb_size;
 	unsigned int is_kexec_kdump = 0, rngs;
 
 	ls = of_get_flat_dt_prop(node, "ibm,lmb-size", &l);
-	if (ls == NULL || l < dt_root_size_cells * sizeof(cell_t))
+	if (ls == NULL || l < dt_root_size_cells * sizeof(__be32))
 		return 0;
 	lmb_size = dt_mem_next_cell(dt_root_size_cells, &ls);
 
 	dm = of_get_flat_dt_prop(node, "ibm,dynamic-memory", &l);
-	if (dm == NULL || l < sizeof(cell_t))
+	if (dm == NULL || l < sizeof(__be32))
 		return 0;
 
 	n = *dm++;	/* number of entries */
-	if (l < (n * (dt_root_addr_cells + 4) + 1) * sizeof(cell_t))
+	if (l < (n * (dt_root_addr_cells + 4) + 1) * sizeof(__be32))
 		return 0;
 
 	/* check if this is a kexec/kdump kernel. */
@@ -963,65 +478,47 @@ static int __init early_init_dt_scan_drconf_memory(unsigned long node)
 #define early_init_dt_scan_drconf_memory(node)	0
 #endif /* CONFIG_PPC_PSERIES */
 
-static int __init early_init_dt_scan_memory(unsigned long node,
-					    const char *uname, int depth, void *data)
+static int __init early_init_dt_scan_memory_ppc(unsigned long node,
+						const char *uname,
+						int depth, void *data)
 {
-	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	cell_t *reg, *endp;
-	unsigned long l;
-
-	/* Look for the ibm,dynamic-reconfiguration-memory node */
 	if (depth == 1 &&
 	    strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
 		return early_init_dt_scan_drconf_memory(node);
+	
+	return early_init_dt_scan_memory(node, uname, depth, data);
+}
 
-	/* We are scanning "memory" nodes only */
-	if (type == NULL) {
-		/*
-		 * The longtrail doesn't have a device_type on the
-		 * /memory node, so look for the node called /memory@0.
-		 */
-		if (depth != 1 || strcmp(uname, "memory@0") != 0)
-			return 0;
-	} else if (strcmp(type, "memory") != 0)
-		return 0;
-
-	reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l);
-	if (reg == NULL)
-		reg = of_get_flat_dt_prop(node, "reg", &l);
-	if (reg == NULL)
-		return 0;
-
-	endp = reg + (l / sizeof(cell_t));
-
-	DBG("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
-	    uname, l, reg[0], reg[1], reg[2], reg[3]);
-
-	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
-		u64 base, size;
+void __init early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+#if defined(CONFIG_PPC64)
+	if (iommu_is_off) {
+		if (base >= 0x80000000ul)
+			return;
+		if ((base + size) > 0x80000000ul)
+			size = 0x80000000ul - base;
+	}
+#endif
 
-		base = dt_mem_next_cell(dt_root_addr_cells, &reg);
-		size = dt_mem_next_cell(dt_root_size_cells, &reg);
+	lmb_add(base, size);
 
-		if (size == 0)
-			continue;
-		DBG(" - %llx ,  %llx\n", (unsigned long long)base,
-		    (unsigned long long)size);
-#ifdef CONFIG_PPC64
-		if (iommu_is_off) {
-			if (base >= 0x80000000ul)
-				continue;
-			if ((base + size) > 0x80000000ul)
-				size = 0x80000000ul - base;
-		}
-#endif
-		lmb_add(base, size);
+	memstart_addr = min((u64)memstart_addr, base);
+}
 
-		memstart_addr = min((u64)memstart_addr, base);
-	}
+u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+{
+	return lmb_alloc(size, align);
+}
 
-	return 0;
+#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
 
 static void __init early_reserve_mem(void)
 {
@@ -1186,7 +683,7 @@ void __init early_init_devtree(void *params)
 	/* Scan memory nodes and rebuild LMBs */
 	lmb_init();
 	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+	of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
 
 	/* Save command line for /proc/cmdline and then parse parameters */
 	strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
@@ -1234,25 +731,6 @@ void __init early_init_devtree(void *params)
 	DBG(" <- early_init_devtree()\n");
 }
 
-
-/**
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int machine_is_compatible(const char *compat)
-{
-	struct device_node *root;
-	int rc = 0;
-
-	root = of_find_node_by_path("/");
-	if (root) {
-		rc = of_device_is_compatible(root, compat);
-		of_node_put(root);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(machine_is_compatible);
-
 /*******
  *
  * New implementation of the OF "find" APIs, return a refcounted
@@ -1265,27 +743,6 @@ EXPORT_SYMBOL(machine_is_compatible);
  *******/
 
 /**
- *	of_find_node_by_phandle - Find a node given a phandle
- *	@handle:	phandle of the node to find
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-	struct device_node *np;
-
-	read_lock(&devtree_lock);
-	for (np = allnodes; np != 0; np = np->allnext)
-		if (np->linux_phandle == handle)
-			break;
-	of_node_get(np);
-	read_unlock(&devtree_lock);
-	return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
-/**
  *	of_find_next_cache_node - Find a node's subsidiary cache
  *	@np:	node of type "cpu" or "cache"
  *
@@ -1316,138 +773,6 @@ struct device_node *of_find_next_cache_node(struct device_node *np)
 	return NULL;
 }
 
-/**
- *	of_node_get - Increment refcount of a node
- *	@node:	Node to inc refcount, NULL is supported to
- *		simplify writing of callers
- *
- *	Returns node.
- */
-struct device_node *of_node_get(struct device_node *node)
-{
-	if (node)
-		kref_get(&node->kref);
-	return node;
-}
-EXPORT_SYMBOL(of_node_get);
-
-static inline struct device_node * kref_to_device_node(struct kref *kref)
-{
-	return container_of(kref, struct device_node, kref);
-}
-
-/**
- *	of_node_release - release a dynamically allocated node
- *	@kref:  kref element of the node to be released
- *
- *	In of_node_put() this function is passed to kref_put()
- *	as the destructor.
- */
-static void of_node_release(struct kref *kref)
-{
-	struct device_node *node = kref_to_device_node(kref);
-	struct property *prop = node->properties;
-
-	/* We should never be releasing nodes that haven't been detached. */
-	if (!of_node_check_flag(node, OF_DETACHED)) {
-		printk("WARNING: Bad of_node_put() on %s\n", node->full_name);
-		dump_stack();
-		kref_init(&node->kref);
-		return;
-	}
-
-	if (!of_node_check_flag(node, OF_DYNAMIC))
-		return;
-
-	while (prop) {
-		struct property *next = prop->next;
-		kfree(prop->name);
-		kfree(prop->value);
-		kfree(prop);
-		prop = next;
-
-		if (!prop) {
-			prop = node->deadprops;
-			node->deadprops = NULL;
-		}
-	}
-	kfree(node->full_name);
-	kfree(node->data);
-	kfree(node);
-}
-
-/**
- *	of_node_put - Decrement refcount of a node
- *	@node:	Node to dec refcount, NULL is supported to
- *		simplify writing of callers
- *
- */
-void of_node_put(struct device_node *node)
-{
-	if (node)
-		kref_put(&node->kref, of_node_release);
-}
-EXPORT_SYMBOL(of_node_put);
-
-/*
- * Plug a device node into the tree and global list.
- */
-void of_attach_node(struct device_node *np)
-{
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	np->sibling = np->parent->child;
-	np->allnext = allnodes;
-	np->parent->child = np;
-	allnodes = np;
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
-/*
- * "Unplug" a node from the device tree.  The caller must hold
- * a reference to the node.  The memory associated with the node
- * is not freed until its refcount goes to zero.
- */
-void of_detach_node(struct device_node *np)
-{
-	struct device_node *parent;
-	unsigned long flags;
-
-	write_lock_irqsave(&devtree_lock, flags);
-
-	parent = np->parent;
-	if (!parent)
-		goto out_unlock;
-
-	if (allnodes == np)
-		allnodes = np->allnext;
-	else {
-		struct device_node *prev;
-		for (prev = allnodes;
-		     prev->allnext != np;
-		     prev = prev->allnext)
-			;
-		prev->allnext = np->allnext;
-	}
-
-	if (parent->child == np)
-		parent->child = np->sibling;
-	else {
-		struct device_node *prevsib;
-		for (prevsib = np->parent->child;
-		     prevsib->sibling != np;
-		     prevsib = prevsib->sibling)
-			;
-		prevsib->sibling = np->sibling;
-	}
-
-	of_node_set_flag(np, OF_DETACHED);
-
-out_unlock:
-	write_unlock_irqrestore(&devtree_lock, flags);
-}
-
 #ifdef CONFIG_PPC_PSERIES
 /*
  * Fix up the uninitialized fields in a new device node:
@@ -1479,9 +804,9 @@ static int of_finish_dynamic_node(struct device_node *node)
 	if (machine_is(powermac))
 		return -ENODEV;
 
-	/* fix up new node's linux_phandle field */
+	/* fix up new node's phandle field */
 	if ((ibm_phandle = of_get_property(node, "ibm,phandle", NULL)))
-		node->linux_phandle = *ibm_phandle;
+		node->phandle = *ibm_phandle;
 
 out:
 	of_node_put(parent);
@@ -1520,120 +845,6 @@ static int __init prom_reconfig_setup(void)
 __initcall(prom_reconfig_setup);
 #endif
 
-/*
- * Add a property to a node
- */
-int prom_add_property(struct device_node* np, struct property* prop)
-{
-	struct property **next;
-	unsigned long flags;
-
-	prop->next = NULL;	
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (strcmp(prop->name, (*next)->name) == 0) {
-			/* duplicate ! don't insert it */
-			write_unlock_irqrestore(&devtree_lock, flags);
-			return -1;
-		}
-		next = &(*next)->next;
-	}
-	*next = prop;
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_add_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Remove a property from a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, so it won't be found any more.
- */
-int prom_remove_property(struct device_node *np, struct property *prop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == prop) {
-			/* found the node */
-			*next = prop->next;
-			prop->next = np->deadprops;
-			np->deadprops = prop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to remove the proc node as well */
-	if (np->pde)
-		proc_device_tree_remove_prop(np->pde, prop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-/*
- * Update a property in a node.  Note that we don't actually
- * remove it, since we have given out who-knows-how-many pointers
- * to the data using get-property.  Instead we just move the property
- * to the "dead properties" list, and add the new property to the
- * property list
- */
-int prom_update_property(struct device_node *np,
-			 struct property *newprop,
-			 struct property *oldprop)
-{
-	struct property **next;
-	unsigned long flags;
-	int found = 0;
-
-	write_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (*next == oldprop) {
-			/* found the node */
-			newprop->next = oldprop->next;
-			*next = newprop;
-			oldprop->next = np->deadprops;
-			np->deadprops = oldprop;
-			found = 1;
-			break;
-		}
-		next = &(*next)->next;
-	}
-	write_unlock_irqrestore(&devtree_lock, flags);
-
-	if (!found)
-		return -ENODEV;
-
-#ifdef CONFIG_PROC_DEVICETREE
-	/* try to add to proc as well if it was initialized */
-	if (np->pde)
-		proc_device_tree_update_prop(np->pde, newprop, oldprop);
-#endif /* CONFIG_PROC_DEVICETREE */
-
-	return 0;
-}
-
-
 /* Find the device node for a given logical cpu number, also returns the cpu
  * local thread number (index in ibm,interrupt-server#s) if relevant and
  * asked for (non NULL)
diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
index 1b426050a2f..0125604d096 100644
--- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c
+++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
@@ -80,8 +80,8 @@ static void xes_mpc85xx_configure_l2(void __iomem *l2_base)
 	printk(KERN_INFO "xes_mpc85xx: Enabling L2 as cache\n");
 
 	ctl = MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2I;
-	if (machine_is_compatible("MPC8540") ||
-	    machine_is_compatible("MPC8560"))
+	if (of_machine_is_compatible("MPC8540") ||
+	    of_machine_is_compatible("MPC8560"))
 		/*
 		 * Assume L2 SRAM is used fully for cache, so set
 		 * L2BLKSZ (bits 4:5) to match L2SIZ (bits 2:3).
diff --git a/arch/powerpc/platforms/cell/cbe_powerbutton.c b/arch/powerpc/platforms/cell/cbe_powerbutton.c
index dcddaa5fcb6..f75a4daa4ca 100644
--- a/arch/powerpc/platforms/cell/cbe_powerbutton.c
+++ b/arch/powerpc/platforms/cell/cbe_powerbutton.c
@@ -48,7 +48,7 @@ static int __init cbe_powerbutton_init(void)
 	int ret = 0;
 	struct input_dev *dev;
 
-	if (!machine_is_compatible("IBM,CBPLUS-1.0")) {
+	if (!of_machine_is_compatible("IBM,CBPLUS-1.0")) {
 		printk(KERN_ERR "%s: Not a cell blade.\n", __func__);
 		ret = -ENODEV;
 		goto out;
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c
index 5e0a191764f..608fd2b584c 100644
--- a/arch/powerpc/platforms/cell/ras.c
+++ b/arch/powerpc/platforms/cell/ras.c
@@ -255,7 +255,7 @@ static int __init cbe_sysreset_init(void)
 {
 	struct cbe_pmd_regs __iomem *regs;
 
-	sysreset_hack = machine_is_compatible("IBM,CBPLUS-1.0");
+	sysreset_hack = of_machine_is_compatible("IBM,CBPLUS-1.0");
 	if (!sysreset_hack)
 		return 0;
 
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index 4c506c1463c..891f18e337a 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -457,7 +457,7 @@ neighbour_spu(int cbe, struct device_node *target, struct device_node *avoid)
 			continue;
 		vic_handles = of_get_property(spu_dn, "vicinity", &lenp);
 		for (i=0; i < (lenp / sizeof(phandle)); i++) {
-			if (vic_handles[i] == target->linux_phandle)
+			if (vic_handles[i] == target->phandle)
 				return spu;
 		}
 	}
@@ -499,7 +499,7 @@ static void init_affinity_node(int cbe)
 
 			if (strcmp(name, "spe") == 0) {
 				spu = devnode_spu(cbe, vic_dn);
-				avoid_ph = last_spu_dn->linux_phandle;
+				avoid_ph = last_spu_dn->phandle;
 			} else {
 				/*
 				 * "mic-tm" and "bif0" nodes do not have
@@ -514,7 +514,7 @@ static void init_affinity_node(int cbe)
 					last_spu->has_mem_affinity = 1;
 					spu->has_mem_affinity = 1;
 				}
-				avoid_ph = vic_dn->linux_phandle;
+				avoid_ph = vic_dn->phandle;
 			}
 
 			list_add_tail(&spu->aff_list, &last_spu->aff_list);
diff --git a/arch/powerpc/platforms/pasemi/cpufreq.c b/arch/powerpc/platforms/pasemi/cpufreq.c
index be2527a516e..d35e0520abf 100644
--- a/arch/powerpc/platforms/pasemi/cpufreq.c
+++ b/arch/powerpc/platforms/pasemi/cpufreq.c
@@ -304,8 +304,8 @@ static struct cpufreq_driver pas_cpufreq_driver = {
 
 static int __init pas_cpufreq_init(void)
 {
-	if (!machine_is_compatible("PA6T-1682M") &&
-	    !machine_is_compatible("pasemi,pwrficient"))
+	if (!of_machine_is_compatible("PA6T-1682M") &&
+	    !of_machine_is_compatible("pasemi,pwrficient"))
 		return -ENODEV;
 
 	return cpufreq_register_driver(&pas_cpufreq_driver);
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 08d94e4cedd..d4f127d1814 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -657,31 +657,31 @@ static int __init pmac_cpufreq_setup(void)
 	cur_freq = (*value) / 1000;
 
 	/*  Check for 7447A based MacRISC3 */
-	if (machine_is_compatible("MacRISC3") &&
+	if (of_machine_is_compatible("MacRISC3") &&
 	    of_get_property(cpunode, "dynamic-power-step", NULL) &&
 	    PVR_VER(mfspr(SPRN_PVR)) == 0x8003) {
 		pmac_cpufreq_init_7447A(cpunode);
 	/* Check for other MacRISC3 machines */
-	} else if (machine_is_compatible("PowerBook3,4") ||
-		   machine_is_compatible("PowerBook3,5") ||
-		   machine_is_compatible("MacRISC3")) {
+	} else if (of_machine_is_compatible("PowerBook3,4") ||
+		   of_machine_is_compatible("PowerBook3,5") ||
+		   of_machine_is_compatible("MacRISC3")) {
 		pmac_cpufreq_init_MacRISC3(cpunode);
 	/* Else check for iBook2 500/600 */
-	} else if (machine_is_compatible("PowerBook4,1")) {
+	} else if (of_machine_is_compatible("PowerBook4,1")) {
 		hi_freq = cur_freq;
 		low_freq = 400000;
 		set_speed_proc = pmu_set_cpu_speed;
 		is_pmu_based = 1;
 	}
 	/* Else check for TiPb 550 */
-	else if (machine_is_compatible("PowerBook3,3") && cur_freq == 550000) {
+	else if (of_machine_is_compatible("PowerBook3,3") && cur_freq == 550000) {
 		hi_freq = cur_freq;
 		low_freq = 500000;
 		set_speed_proc = pmu_set_cpu_speed;
 		is_pmu_based = 1;
 	}
 	/* Else check for TiPb 400 & 500 */
-	else if (machine_is_compatible("PowerBook3,2")) {
+	else if (of_machine_is_compatible("PowerBook3,2")) {
 		/* We only know about the 400 MHz and the 500Mhz model
 		 * they both have 300 MHz as low frequency
 		 */
diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c
index 708c7513337..3ed288e68ec 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_64.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_64.c
@@ -398,11 +398,11 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
 	int rc = -ENODEV;
 
 	/* Check supported platforms */
-	if (machine_is_compatible("PowerMac8,1") ||
-	    machine_is_compatible("PowerMac8,2") ||
-	    machine_is_compatible("PowerMac9,1"))
+	if (of_machine_is_compatible("PowerMac8,1") ||
+	    of_machine_is_compatible("PowerMac8,2") ||
+	    of_machine_is_compatible("PowerMac9,1"))
 		use_volts_smu = 1;
-	else if (machine_is_compatible("PowerMac11,2"))
+	else if (of_machine_is_compatible("PowerMac11,2"))
 		use_volts_vdnap = 1;
 	else
 		return -ENODEV;
@@ -729,9 +729,9 @@ static int __init g5_cpufreq_init(void)
 		return -ENODEV;
 	}
 
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		rc = g5_pm72_cpufreq_init(cpus);
 #ifdef CONFIG_PMAC_SMU
 	else
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index fbc9bbd74db..33e815f4466 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2426,7 +2426,7 @@ static int __init probe_motherboard(void)
 	    }
 	}
 	for(i=0; i<ARRAY_SIZE(pmac_mb_defs); i++) {
-	    if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
+	    if (of_machine_is_compatible(pmac_mb_defs[i].model_string)) {
 		pmac_mb = pmac_mb_defs[i];
 		goto found;
 	    }
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index 96d5ce50364..ede49e78a8d 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -842,7 +842,7 @@ struct pmf_function *__pmf_find_function(struct device_node *target,
 	list_for_each_entry(func, &dev->functions, link) {
 		if (name && strcmp(name, func->name))
 			continue;
-		if (func->phandle && target->node != func->phandle)
+		if (func->phandle && target->phandle != func->phandle)
 			continue;
 		if ((func->flags & flags) == 0)
 			continue;
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index b40c22d697f..6898e8241cd 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -693,9 +693,9 @@ static void __init smp_core99_setup(int ncpus)
 #ifdef CONFIG_PPC64
 
 	/* i2c based HW sync on some G5s */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		smp_core99_setup_i2c_hwsync(ncpus);
 
 	/* pfunc based HW sync on recent G5s */
@@ -713,7 +713,7 @@ static void __init smp_core99_setup(int ncpus)
 #else /* CONFIG_PPC64 */
 
 	/* GPIO based HW sync on ppc32 Core99 */
-	if (pmac_tb_freeze == NULL && !machine_is_compatible("MacRISC4")) {
+	if (pmac_tb_freeze == NULL && !of_machine_is_compatible("MacRISC4")) {
 		struct device_node *cpu;
 		const u32 *tbprop = NULL;
 
@@ -750,7 +750,7 @@ static void __init smp_core99_setup(int ncpus)
 #endif
 
 	/* 32 bits SMP can't NAP */
-	if (!machine_is_compatible("MacRISC4"))
+	if (!of_machine_is_compatible("MacRISC4"))
 		powersave_nap = 0;
 }
 
@@ -852,7 +852,7 @@ static void __devinit smp_core99_setup_cpu(int cpu_nr)
 		/* If we didn't start the second CPU, we must take
 		 * it off the bus
 		 */
-		if (machine_is_compatible("MacRISC4") &&
+		if (of_machine_is_compatible("MacRISC4") &&
 		    num_online_cpus() < 2)		
 			g5_phy_disable_cpu1();
 #endif /* CONFIG_PPC64 */
diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c
index 1810e4226e5..48211ca134c 100644
--- a/arch/powerpc/platforms/powermac/time.c
+++ b/arch/powerpc/platforms/powermac/time.c
@@ -317,9 +317,9 @@ void __init pmac_calibrate_decr(void)
 	 * calibration. That's better since the VIA itself seems
 	 * to be slightly off. --BenH
 	 */
-	if (!machine_is_compatible("MacRISC2") &&
-	    !machine_is_compatible("MacRISC3") &&
-	    !machine_is_compatible("MacRISC4"))
+	if (!of_machine_is_compatible("MacRISC2") &&
+	    !of_machine_is_compatible("MacRISC3") &&
+	    !of_machine_is_compatible("MacRISC4"))
 		if (via_calibrate_decr())
 			return;
 
@@ -328,7 +328,7 @@ void __init pmac_calibrate_decr(void)
 	 * probably implement calibration based on the KL timer on these
 	 * machines anyway... -BenH
 	 */
-	if (machine_is_compatible("PowerMac3,5"))
+	if (of_machine_is_compatible("PowerMac3,5"))
 		if (via_calibrate_decr())
 			return;
 #endif
diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c
index 9490157da62..d83135a9830 100644
--- a/arch/powerpc/platforms/powermac/udbg_scc.c
+++ b/arch/powerpc/platforms/powermac/udbg_scc.c
@@ -132,9 +132,9 @@ void udbg_scc_init(int force_scc)
 		scc_inittab[1] = in_8(sccc);
 		out_8(sccc, 12);
 		scc_inittab[3] = in_8(sccc);
-	} else if (machine_is_compatible("RackMac1,1")
-		   || machine_is_compatible("RackMac1,2")
-		   || machine_is_compatible("MacRISC4")) {
+	} else if (of_machine_is_compatible("RackMac1,1")
+		   || of_machine_is_compatible("RackMac1,2")
+		   || of_machine_is_compatible("MacRISC4")) {
 		/* Xserves and G5s default to 57600 */
 		scc_inittab[1] = 0;
 		scc_inittab[3] = 0;
diff --git a/arch/powerpc/sysdev/grackle.c b/arch/powerpc/sysdev/grackle.c
index 5da37c2f22e..cf27df6e508 100644
--- a/arch/powerpc/sysdev/grackle.c
+++ b/arch/powerpc/sysdev/grackle.c
@@ -56,9 +56,9 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
 void __init setup_grackle(struct pci_controller *hose)
 {
 	setup_indirect_pci(hose, 0xfec00000, 0xfee00000, 0);
-	if (machine_is_compatible("PowerMac1,1"))
+	if (of_machine_is_compatible("PowerMac1,1"))
 		ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS);
-	if (machine_is_compatible("AAPL,PowerBook1998"))
+	if (of_machine_is_compatible("AAPL,PowerBook1998"))
 		grackle_set_loop_snoop(hose, 1);
 #if 0	/* Disabled for now, HW problems ??? */
 	grackle_set_stg(hose, 1);
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index b171ae8de90..b062de9424a 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -59,7 +59,7 @@ static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg,
 
 	cur_inst = 0;
 	for_each_node_by_type(dp, "cpu") {
-		int err = check_cpu_node(dp->node, &cur_inst,
+		int err = check_cpu_node(dp->phandle, &cur_inst,
 					 compare, compare_arg,
 					 prom_node, mid);
 		if (!err) {
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 53a58b34984..da527b33ebc 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -433,7 +433,7 @@ build_resources:
 	if (!parent)
 		dev_set_name(&op->dev, "root");
 	else
-		dev_set_name(&op->dev, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->phandle);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 0a6f2d1798d..b3d4cb5d21b 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -676,7 +676,7 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
 	if (!parent)
 		dev_set_name(&op->dev, "root");
 	else
-		dev_set_name(&op->dev, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->phandle);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",
diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h
index 453397fe5e1..a8591ef2636 100644
--- a/arch/sparc/kernel/prom.h
+++ b/arch/sparc/kernel/prom.h
@@ -4,9 +4,6 @@
 #include <linux/spinlock.h>
 #include <asm/prom.h>
 
-extern struct device_node *allnodes;	/* temporary while merging */
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
 extern void * prom_early_alloc(unsigned long size);
 extern void irq_trans_init(struct device_node *dp);
 
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index d80a65d9e89..57ac9e28be0 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -37,18 +37,6 @@ EXPORT_SYMBOL(of_console_path);
 char *of_console_options;
 EXPORT_SYMBOL(of_console_options);
 
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-	struct device_node *np;
-
-	for (np = allnodes; np; np = np->allnext)
-		if (np->node == handle)
-			break;
-
-	return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
 int of_getintprop_default(struct device_node *np, const char *name, int def)
 {
 	struct property *prop;
@@ -89,7 +77,7 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len
 			void *old_val = prop->value;
 			int ret;
 
-			ret = prom_setprop(dp->node, name, val, len);
+			ret = prom_setprop(dp->phandle, name, val, len);
 
 			err = -EINVAL;
 			if (ret >= 0) {
@@ -236,7 +224,7 @@ static struct device_node * __init prom_create_node(phandle node,
 
 	dp->name = get_one_property(node, "name");
 	dp->type = get_one_property(node, "device_type");
-	dp->node = node;
+	dp->phandle = node;
 
 	dp->properties = build_prop_list(node);
 
@@ -313,7 +301,7 @@ void __init prom_build_devicetree(void)
 
 	nextp = &allnodes->allnext;
 	allnodes->child = prom_build_tree(allnodes,
-					  prom_getchild(allnodes->node),
+					  prom_getchild(allnodes->phandle),
 					  &nextp);
 	of_console_init();
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index aa36223497b..eb14844a002 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -370,7 +370,7 @@ static int __cpuinit smp_boot_one_cpu(unsigned int cpu)
 	} else {
 		struct device_node *dp = of_find_node_by_cpuid(cpu);
 
-		prom_startcpu(dp->node, entry, cookie);
+		prom_startcpu(dp->phandle, entry, cookie);
 	}
 
 	for (timeout = 0; timeout < 50000; timeout++) {