diff options
| author | Simon Glass <sjg@chromium.org> | 2014-07-23 06:55:16 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-07-23 14:07:26 +0100 |
| commit | 3234aa4babd79bf92239409145db4fda2f505051 (patch) | |
| tree | 61691075181b112acc3326a982026f01ea2770c5 /lib | |
| parent | c910e2e2da49036496a5b8b34425043675218d51 (diff) | |
fdt: Add a function to get the node offset of an alias
This simple function returns the node offset of a named alias.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fdtdec.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 1b4ae9f417a..eb5aa20526f 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -365,6 +365,21 @@ int fdtdec_get_alias_seq(const void *blob, const char *base, int offset, return -ENOENT; } +int fdtdec_get_alias_node(const void *blob, const char *name) +{ + const char *prop; + int alias_node; + int len; + + if (!blob) + return -FDT_ERR_NOTFOUND; + alias_node = fdt_path_offset(blob, "/aliases"); + prop = fdt_getprop(blob, alias_node, name, &len); + if (!prop) + return -FDT_ERR_NOTFOUND; + return fdt_path_offset(blob, prop); +} + int fdtdec_check_fdt(void) { /* |