efi_loader: efi_dp_from_file() expect UTF-8 path

[oweals/u-boot.git] / lib / fdtdec.c

diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index d0ba8889733592001dc41d3a4a77a54270c6ce4c..3ee786b57940df4b12f89cce3003f2c2a252c9e0 100644 (file)
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1261,6 +1261,35 @@ __weak void *board_fdt_blob_setup(void)
 }
 #endif
 
+int fdtdec_set_ethernet_mac_address(void *fdt, const u8 *mac, size_t size)
+{
+       const char *path;
+       int offset, err;
+
+       if (!is_valid_ethaddr(mac))
+               return -EINVAL;
+
+       path = fdt_get_alias(fdt, "ethernet");
+       if (!path)
+               return 0;
+
+       debug("ethernet alias found: %s\n", path);
+
+       offset = fdt_path_offset(fdt, path);
+       if (offset < 0) {
+               debug("ethernet alias points to absent node %s\n", path);
+               return -ENOENT;
+       }
+
+       err = fdt_setprop_inplace(fdt, offset, "local-mac-address", mac, size);
+       if (err < 0)
+               return err;
+
+       debug("MAC address: %pM\n", mac);
+
+       return 0;
+}
+
 static int fdtdec_init_reserved_memory(void *blob)
 {
        int na, ns, node, err;