diff options
| author | Rob Herring <robh@kernel.org> | 2014-04-22 12:55:10 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2014-04-30 00:59:18 -0500 |
| commit | c0556d3f2c3f42eaed049139ce6f0899ecdb0217 (patch) | |
| tree | 9bfbb3c61b640a8492e95f0cdff10c9734376c09 | |
| parent | 1d1a661da4c8468b3fa6f567b2b1f8cdeafa847a (diff) | |
of/fdt: introduce of_get_flat_dt_size
Add a wrapper function to retrieve the FDT size from the FDT header. This
is primarily to avoid libfdt include paths for the whole kernel.
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>
| -rw-r--r-- | drivers/of/fdt.c | 8 | ||||
| -rw-r--r-- | include/linux/of_fdt.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index d9e64504cda..358bcf0500d 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -554,6 +554,14 @@ unsigned long __init of_get_flat_dt_root(void) } /** + * of_get_flat_dt_size - Return the total size of the FDT + */ +int __init of_get_flat_dt_size(void) +{ + return fdt_totalsize(initial_boot_params); +} + +/** * of_get_flat_dt_prop - Given a node in the flat blob, return the property ptr * * This function can be used within scan_flattened_dt callback to get diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 348dae2c8a3..e10099c9599 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -92,6 +92,7 @@ extern const void *of_get_flat_dt_prop(unsigned long node, const char *name, extern int of_flat_dt_is_compatible(unsigned long node, const char *name); extern int of_flat_dt_match(unsigned long node, const char *const *matches); extern unsigned long of_get_flat_dt_root(void); +extern int of_get_flat_dt_size(void); extern int early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data); |