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author | Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> | 2010-11-18 15:54:59 -0800 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-12-29 16:53:45 -0700 |
commit | 9706a36e35c4ce04f28a62cfe1205b4e3b0dd13c (patch) | |
tree | 12f378664e5fa9fe560b281fa56214772df3f6ab /include/linux/of_fdt.h | |
parent | e6ce1324e4f08b0d984340201a125806dae0e9a6 (diff) | |
download | linux-stable-9706a36e35c4ce04f28a62cfe1205b4e3b0dd13c.tar.gz linux-stable-9706a36e35c4ce04f28a62cfe1205b4e3b0dd13c.tar.bz2 linux-stable-9706a36e35c4ce04f28a62cfe1205b4e3b0dd13c.zip |
of/flattree: Add non-boottime device tree functions
In preparation for providing run-time handling of device trees, factor
out some of the basic functions so that they take an arbitrary blob,
rather than relying on the single boot-time tree.
V2:
- functions have of_fdt_* names
- removed find_flat_dt_string
- blob argument is first
Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/of_fdt.h')
-rw-r--r-- | include/linux/of_fdt.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 7bbf5b328438..70c5b736f0a3 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -58,6 +58,17 @@ struct boot_param_header { }; #if defined(CONFIG_OF_FLATTREE) + +/* For scanning an arbitrary device-tree at any time */ +extern char *of_fdt_get_string(struct boot_param_header *blob, u32 offset); +extern void *of_fdt_get_property(struct boot_param_header *blob, + unsigned long node, + const char *name, + unsigned long *size); +extern int of_fdt_is_compatible(struct boot_param_header *blob, + unsigned long node, + const char *compat); + /* 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; |