From 169ecb4a83c86dba7d19442de05310f0c068f0d1 Mon Sep 17 00:00:00 2001 From: Paul Kocialkowski Date: Mon, 20 Jul 2015 15:17:13 +0200 Subject: [PATCH] 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 --- board/lge/sniper/sniper.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/board/lge/sniper/sniper.c b/board/lge/sniper/sniper.c index 44d422da1b..f26855dd39 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; } -- 2.39.5