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()
  ...

2 files changed, 90 insertions, 47 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index e7facd8fbce8..f6d9cbc39c9c 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -19,6 +19,11 @@
 #include <linux/bitops.h>
 #include <linux/kref.h>
 #include <linux/mod_devicetable.h>
+#include <linux/spinlock.h>
+
+#include <asm/byteorder.h>
+
+#ifdef CONFIG_OF
 
 typedef u32 phandle;
 typedef u32 ihandle;
@@ -39,10 +44,7 @@ struct of_irq_controller;
 struct device_node {
         const char *name;
         const char *type;
-        phandle node;
-#if !defined(CONFIG_SPARC)
-        phandle linux_phandle;
-#endif
+        phandle phandle;
         char    *full_name;
 
         struct  property *properties;
@@ -63,6 +65,11 @@ struct device_node {
 #endif
 };
 
+/* Pointer for first entry in chain of all nodes. */
+extern struct device_node *allnodes;
+extern struct device_node *of_chosen;
+extern rwlock_t devtree_lock;
+
 static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
 {
         return test_bit(flag, &n->_flags);
@@ -73,12 +80,6 @@ static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
         set_bit(flag, &n->_flags);
 }
 
-static inline void
-set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
-{
-        dn->pde = de;
-}
-
 extern struct device_node *of_find_all_nodes(struct device_node *prev);
 
 #if defined(CONFIG_SPARC)
@@ -101,26 +102,36 @@ extern void of_node_put(struct device_node *node);
  */
 
 /* Helper to read a big number; size is in cells (not bytes) */
-static inline u64 of_read_number(const u32 *cell, int size)
+static inline u64 of_read_number(const __be32 *cell, int size)
 {
         u64 r = 0;
         while (size--)
-                r = (r << 32) | *(cell++);
+                r = (r << 32) | be32_to_cpu(*(cell++));
         return r;
 }
 
 /* Like of_read_number, but we want an unsigned long result */
-#ifdef CONFIG_PPC32
-static inline unsigned long of_read_ulong(const u32 *cell, int size)
+static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 {
-        return cell[size-1];
+        /* toss away upper bits if unsigned long is smaller than u64 */
+        return of_read_number(cell, size);
 }
-#else
-#define of_read_ulong(cell, size)       of_read_number(cell, size)
-#endif
 
 #include <asm/prom.h>
 
+/* Default #address and #size cells.  Allow arch asm/prom.h to override */
+#if !defined(OF_ROOT_NODE_ADDR_CELLS_DEFAULT)
+#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
+#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
+#endif
+
+/* Default string compare functions, Allow arch asm/prom.h to override */
+#if !defined(of_compat_cmp)
+#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))
+#endif
+
 /* flag descriptions */
 #define OF_DYNAMIC      1 /* node and properties were allocated via kmalloc */
 #define OF_DETACHED     2 /* node has been detached from the device tree */
@@ -187,4 +198,19 @@ extern int of_parse_phandles_with_args(struct device_node *np,
         const char *list_name, const char *cells_name, int index,
         struct device_node **out_node, const void **out_args);
 
+extern int of_machine_is_compatible(const char *compat);
+
+extern int prom_add_property(struct device_node* np, struct property* prop);
+extern int prom_remove_property(struct device_node *np, struct property *prop);
+extern int prom_update_property(struct device_node *np,
+                                struct property *newprop,
+                                struct property *oldprop);
+
+#if defined(CONFIG_OF_DYNAMIC)
+/* For updating the device tree at runtime */
+extern void of_attach_node(struct device_node *);
+extern void of_detach_node(struct device_node *);
+#endif
+
+#endif /* CONFIG_OF */
 #endif /* _LINUX_OF_H */
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 41d432b13553..a1ca92ccb0ff 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -42,45 +42,62 @@
  * ends when size is 0
  */
 struct boot_param_header {
-        u32     magic;                  /* magic word OF_DT_HEADER */
-        u32     totalsize;              /* total size of DT block */
-        u32     off_dt_struct;          /* offset to structure */
-        u32     off_dt_strings;         /* offset to strings */
-        u32     off_mem_rsvmap;         /* offset to memory reserve map */
-        u32     version;                /* format version */
-        u32     last_comp_version;      /* last compatible version */
+        __be32  magic;                  /* magic word OF_DT_HEADER */
+        __be32  totalsize;              /* total size of DT block */
+        __be32  off_dt_struct;          /* offset to structure */
+        __be32  off_dt_strings;         /* offset to strings */
+        __be32  off_mem_rsvmap;         /* offset to memory reserve map */
+        __be32  version;                /* format version */
+        __be32  last_comp_version;      /* last compatible version */
         /* version 2 fields below */
-        u32     boot_cpuid_phys;        /* Physical CPU id we're booting on */
+        __be32  boot_cpuid_phys;        /* Physical CPU id we're booting on */
         /* version 3 fields below */
-        u32     dt_strings_size;        /* size of the DT strings block */
+        __be32  dt_strings_size;        /* size of the DT strings block */
         /* version 17 fields below */
-        u32     dt_struct_size;         /* size of the DT structure block */
+        __be32  dt_struct_size;         /* size of the DT structure block */
 };
 
+/* TBD: Temporary export of fdt globals - remove when code fully merged */
+extern int __initdata dt_root_addr_cells;
+extern int __initdata dt_root_size_cells;
+extern struct boot_param_header *initial_boot_params;
+
 /* For scanning the flat device-tree at boot time */
-extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
-                                            const char *uname, int depth,
-                                            void *data),
-                                  void *data);
-extern void __init *of_get_flat_dt_prop(unsigned long node, const char *name,
-                                        unsigned long *size);
-extern int __init of_flat_dt_is_compatible(unsigned long node,
-                                           const char *name);
-extern unsigned long __init of_get_flat_dt_root(void);
+extern char *find_flat_dt_string(u32 offset);
+extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
+                                     int depth, void *data),
+                           void *data);
+extern void *of_get_flat_dt_prop(unsigned long node, const char *name,
+                                 unsigned long *size);
+extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
+extern unsigned long of_get_flat_dt_root(void);
+extern void early_init_dt_scan_chosen_arch(unsigned long node);
+extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
+                                     int depth, void *data);
+extern void early_init_dt_check_for_initrd(unsigned long node);
+extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
+                                     int depth, void *data);
+extern void early_init_dt_add_memory_arch(u64 base, u64 size);
+extern u64 early_init_dt_alloc_memory_arch(u64 size, u64 align);
+extern u64 dt_mem_next_cell(int s, __be32 **cellp);
+
+/*
+ * If BLK_DEV_INITRD, the fdt early init code will call this function,
+ * to be provided by the arch code. start and end are specified as
+ * physical addresses.
+ */
+#ifdef CONFIG_BLK_DEV_INITRD
+extern void early_init_dt_setup_initrd_arch(unsigned long start,
+                                            unsigned long end);
+#endif
+
+/* Early flat tree scan hooks */
+extern int early_init_dt_scan_root(unsigned long node, const char *uname,
+                                   int depth, void *data);
 
 /* Other Prototypes */
-extern void finish_device_tree(void);
 extern void unflatten_device_tree(void);
 extern void early_init_devtree(void *);
-extern int machine_is_compatible(const char *compat);
-extern void print_properties(struct device_node *node);
-extern int prom_n_intr_cells(struct device_node* np);
-extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
-extern int prom_add_property(struct device_node* np, struct property* prop);
-extern int prom_remove_property(struct device_node *np, struct property *prop);
-extern int prom_update_property(struct device_node *np,
-                                struct property *newprop,
-                                struct property *oldprop);
 
 #endif /* __ASSEMBLY__ */
 #endif /* _LINUX_OF_FDT_H */