diff options
Diffstat (limited to 'arch/arm/mach-imx/ele_ahab.c')
| -rw-r--r-- | arch/arm/mach-imx/ele_ahab.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/ele_ahab.c b/arch/arm/mach-imx/ele_ahab.c index c13d9f0e00e..647daeb6562 100644 --- a/arch/arm/mach-imx/ele_ahab.c +++ b/arch/arm/mach-imx/ele_ahab.c @@ -624,6 +624,31 @@ static int do_ahab_return_lifecycle(struct cmd_tbl *cmdtp, int flag, int argc, c return CMD_RET_SUCCESS; } +static int do_ahab_derive(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + ulong key; + size_t key_size; + char seed[] = "_ELE_AHAB_SEED_"; + + if (argc != 3) + return CMD_RET_USAGE; + + key = hextoul(argv[1], NULL); + key_size = simple_strtoul(argv[2], NULL, 10); + if (key_size != 16 && key_size != 32) { + printf("key size can only be 16 or 32\n"); + return CMD_RET_FAILURE; + } + + if (ele_derive_huk((u8 *)key, key_size, seed, sizeof(seed))) { + printf("Error in AHAB derive\n"); + return CMD_RET_FAILURE; + } + + return CMD_RET_SUCCESS; +} + static int do_ahab_commit(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { @@ -680,6 +705,12 @@ U_BOOT_CMD(ahab_return_lifecycle, CONFIG_SYS_MAXARGS, 1, do_ahab_return_lifecycl "addr - Return lifecycle message block signed by OEM SRK\n" ); +U_BOOT_CMD(ahab_derive, CONFIG_SYS_MAXARGS, 3, do_ahab_derive, + "Derive the hardware unique key", + "addr [16|32]\n" + "Store at addr the derivation of the HUK on 16 or 32 bytes.\n" +); + U_BOOT_CMD(ahab_commit, CONFIG_SYS_MAXARGS, 1, do_ahab_commit, "commit into the fuses any new SRK revocation and FW version information\n" "that have been found into the NXP (ELE FW) and OEM containers", |