diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fdtdec.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index d0ba888973..3ee786b579 100644 --- 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; |