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author | Paul Kocialkowski <contact@paulk.fr> | 2015-07-20 13:17:13 (GMT) |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2015-08-13 00:47:38 (GMT) |
commit | 169ecb4a83c86dba7d19442de05310f0c068f0d1 (patch) | |
tree | 97129279b9a6c782885dc8210327db13e982aefc | |
parent | 957efd4b5766e5ab68b032615c1a99f89ad01d86 (diff) | |
download | u-boot-fsl-qoriq-169ecb4a83c86dba7d19442de05310f0c068f0d1.tar.xz |
sniper: Serial number support, obtained from die ID
The OMAP3 has some die-specific ID bits that we can use to give the device a
(more or less) unique serial number. This is particularly useful for e.g. USB.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
-rw-r--r-- | board/lge/sniper/sniper.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/board/lge/sniper/sniper.c b/board/lge/sniper/sniper.c index 44d422d..f26855d 100644 --- a/board/lge/sniper/sniper.c +++ b/board/lge/sniper/sniper.c @@ -70,7 +70,9 @@ int board_init(void) int misc_init_r(void) { + char serial_string[17] = { 0 }; char reboot_mode[2] = { 0 }; + u32 dieid[4] = { 0 }; /* Reboot mode */ @@ -82,6 +84,17 @@ int misc_init_r(void) omap_reboot_mode_clear(); } + /* Serial number */ + + get_dieid((u32 *)&dieid); + + if (!getenv("serial#")) { + snprintf(serial_string, sizeof(serial_string), + "%08x%08x", dieid[0], dieid[3]); + + setenv("serial#", serial_string); + } + return 0; } |