diff options
| author | Sagar Shrikant Kadam <sagar.kadam@sifive.com> | 2019-08-12 07:57:40 -0700 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2019-09-03 09:29:54 +0800 |
| commit | cba0635386df71f7f39d940938811fdf279f83d2 (patch) | |
| tree | 922a6f163282a1e409c828b43474aa82dea4c05e /board/sifive | |
| parent | 4dfea4b5cd68b86dd47d1333f1871a402087deaa (diff) | |
riscv: sifive: fu540: set serial environment variable from otp
This patch sets the serial# environment variable by reading the
board serial number from the OTP memory region.
Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'board/sifive')
| -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; } |