diff options
Diffstat (limited to 'board/sifive/fu540/fu540.c')
| -rw-r--r-- | board/sifive/fu540/fu540.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/board/sifive/fu540/fu540.c b/board/sifive/fu540/fu540.c index 11daf1a75a..47a2090251 100644 --- a/board/sifive/fu540/fu540.c +++ b/board/sifive/fu540/fu540.c @@ -122,10 +122,20 @@ static void fu540_setup_macaddr(u32 serialnum) int misc_init_r(void) { - /* Set ethaddr environment variable if not set */ - if (!env_get("ethaddr")) - fu540_setup_macaddr(fu540_read_serialnum()); - + u32 serial_num; + char buf[9] = {0}; + + /* Set ethaddr environment variable from board serial number */ + if (!env_get("serial#")) { + serial_num = fu540_read_serialnum(); + if (!serial_num) { + WARN(true, "Board serial number should not be 0 !!\n"); + return 0; + } + snprintf(buf, sizeof(buf), "%08x", serial_num); + env_set("serial#", buf); + fu540_setup_macaddr(serial_num); + } return 0; } |