diff options
| author | Dirk Behme <dirk.behme@googlemail.com> | 2009-03-12 19:30:50 +0100 |
|---|---|---|
| committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-03-13 23:17:43 +0100 |
| commit | e6a6a704151c2d7e4a7b485545b48a6020ccca17 (patch) | |
| tree | c49fa6462c2d8c043919a68e67eed1edff8fa218 /cpu/arm_cortexa8/omap3/sys_info.c | |
| parent | 3c92217732edfc0016c3cbdc828471d013d23a36 (diff) | |
OMAP3: Add support for OMAP3 die ID
Read and store OMAP3 die ID in U-Boot environment.
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
Diffstat (limited to 'cpu/arm_cortexa8/omap3/sys_info.c')
| -rw-r--r-- | cpu/arm_cortexa8/omap3/sys_info.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/cpu/arm_cortexa8/omap3/sys_info.c b/cpu/arm_cortexa8/omap3/sys_info.c index 28a102091a..b385b912b4 100644 --- a/cpu/arm_cortexa8/omap3/sys_info.c +++ b/cpu/arm_cortexa8/omap3/sys_info.c @@ -36,6 +36,32 @@ static gpmc_csx_t *gpmc_cs_base = (gpmc_csx_t *)GPMC_CONFIG_CS0_BASE; static sdrc_t *sdrc_base = (sdrc_t *)OMAP34XX_SDRC_BASE; static ctrl_t *ctrl_base = (ctrl_t *)OMAP34XX_CTRL_BASE; +/***************************************************************** + * dieid_num_r(void) - read and set die ID + *****************************************************************/ +void dieid_num_r(void) +{ + ctrl_id_t *id_base = (ctrl_id_t *)OMAP34XX_ID_L4_IO_BASE; + char *uid_s, die_id[34]; + u32 id[4]; + + memset(die_id, 0, sizeof(die_id)); + + uid_s = getenv("dieid#"); + + if (uid_s == NULL) { + id[3] = readl(&id_base->die_id_0); + id[2] = readl(&id_base->die_id_1); + id[1] = readl(&id_base->die_id_2); + id[0] = readl(&id_base->die_id_3); + sprintf(die_id, "%08x%08x%08x%08x", id[0], id[1], id[2], id[3]); + setenv("dieid#", die_id); + uid_s = die_id; + } + + printf("Die ID #%s\n", uid_s); +} + /****************************************** * get_cpu_type(void) - extract cpu info ******************************************/ |