4 * Definitions for talking to the Open Firmware PROM on
5 * Power Macintosh and other computers.
7 * Copyright (C) 1996-2005 Paul Mackerras.
9 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
10 * Updates for SPARC64 by David S. Miller
11 * Derived from PowerPC and Sparc prom.h files by Stephen Rothwell, IBM Corp.
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
18 #include <linux/types.h>
19 #include <linux/bitops.h>
20 #include <linux/mod_devicetable.h>
29 struct property *next;
31 unsigned int unique_id;
36 /* flag descriptions */
37 #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
38 #define OF_DETACHED 2 /* node has been detached from the device tree */
40 #define OF_BAD_ADDR ((u64)-1)
42 extern struct device_node *of_find_node_by_name(struct device_node *from,
44 #define for_each_node_by_name(dn, name) \
45 for (dn = of_find_node_by_name(NULL, name); dn; \
46 dn = of_find_node_by_name(dn, name))
47 extern struct device_node *of_find_node_by_type(struct device_node *from,
49 #define for_each_node_by_type(dn, type) \
50 for (dn = of_find_node_by_type(NULL, type); dn; \
51 dn = of_find_node_by_type(dn, type))
52 extern struct device_node *of_find_compatible_node(struct device_node *from,
53 const char *type, const char *compat);
54 #define for_each_compatible_node(dn, type, compatible) \
55 for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
56 dn = of_find_compatible_node(dn, type, compatible))
57 extern struct device_node *of_find_matching_node(struct device_node *from,
58 const struct of_device_id *matches);
59 #define for_each_matching_node(dn, matches) \
60 for (dn = of_find_matching_node(NULL, matches); dn; \
61 dn = of_find_matching_node(dn, matches))
62 extern struct device_node *of_find_node_by_path(const char *path);
63 extern struct device_node *of_find_node_by_phandle(phandle handle);
64 extern struct device_node *of_get_parent(const struct device_node *node);
65 extern struct device_node *of_get_next_parent(struct device_node *node);
66 extern struct device_node *of_get_next_child(const struct device_node *node,
67 struct device_node *prev);
68 #define for_each_child_of_node(parent, child) \
69 for (child = of_get_next_child(parent, NULL); child != NULL; \
70 child = of_get_next_child(parent, child))
72 extern struct device_node *of_find_node_with_property(
73 struct device_node *from, const char *prop_name);
74 #define for_each_node_with_property(dn, prop_name) \
75 for (dn = of_find_node_with_property(NULL, prop_name); dn; \
76 dn = of_find_node_with_property(dn, prop_name))
78 extern struct property *of_find_property(const struct device_node *np,
81 extern int of_device_is_compatible(const struct device_node *device,
83 extern int of_device_is_available(const struct device_node *device);
84 extern const void *of_get_property(const struct device_node *node,
87 extern int of_n_addr_cells(struct device_node *np);
88 extern int of_n_size_cells(struct device_node *np);
89 extern const struct of_device_id *of_match_node(
90 const struct of_device_id *matches, const struct device_node *node);
91 extern int of_modalias_node(struct device_node *node, char *modalias, int len);
92 extern struct device_node *of_parse_phandle(struct device_node *np,
93 const char *phandle_name,
95 extern int of_parse_phandles_with_args(struct device_node *np,
96 const char *list_name, const char *cells_name, int index,
97 struct device_node **out_node, const void **out_args);
99 #endif /* _LINUX_OF_H */