add fdt_get_symbol() and fdt_get_symbol_namelen() functions

The fdt_get_symbol_namelen() function will be used in a subsequent
patch.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 11 insertions, 0 deletions

diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c
index 7faa7a6..c4c520c 100644
--- a/libfdt/fdt_ro.c
+++ b/libfdt/fdt_ro.c
@@ -545,6 +545,17 @@ const char *fdt_get_alias(const void *fdt, const char *name)
 	return fdt_get_alias_namelen(fdt, name, strlen(name));
 }
 
+const char *fdt_get_symbol_namelen(const void *fdt,
+				   const char *name, int namelen)
+{
+	return fdt_path_getprop_namelen(fdt, "/__symbols__", name, namelen, NULL);
+}
+
+const char *fdt_get_symbol(const void *fdt, const char *name)
+{
+	return fdt_get_symbol_namelen(fdt, name, strlen(name));
+}
+
 int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
 {
 	int pdepth = 0, p = 0;