diff options
Diffstat (limited to 'board/cr50/board.c')
| -rw-r--r-- | board/cr50/board.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/board/cr50/board.c b/board/cr50/board.c index 09b0ef022f..46a642b676 100644 --- a/board/cr50/board.c +++ b/board/cr50/board.c @@ -727,6 +727,23 @@ void i2cs_set_pinmux(void) GWRITE_FIELD(PINMUX, EXITEN0, DIOA1, 1); /* enable powerdown exit */ } +/* Determine key type based on the key ID. */ +static const char *key_type(uint32_t key_id) +{ + + /* + * It is a mere convention, but all prod keys are required to have key + * IDs such, that bit D2 is set, and all dev keys are required to have + * key IDs such, that bit D2 is not set. + * + * This convention is enforced at the key generation time. + */ + if (key_id & (1 << 2)) + return "prod"; + else + return "dev"; +} + static int command_sysinfo(int argc, char **argv) { enum system_image_copy_t active; @@ -743,12 +760,12 @@ static int command_sysinfo(int argc, char **argv) active = system_get_ro_image_copy(); vaddr = get_program_memory_addr(active); h = (const struct SignedHeader *)vaddr; - ccprintf("RO keyid: 0x%08x\n", h->keyid); + ccprintf("RO keyid: 0x%08x(%s)\n", h->keyid, key_type(h->keyid)); active = system_get_image_copy(); vaddr = get_program_memory_addr(active); h = (const struct SignedHeader *)vaddr; - ccprintf("RW keyid: 0x%08x\n", h->keyid); + ccprintf("RW keyid: 0x%08x(%s)\n", h->keyid, key_type(h->keyid)); ccprintf("DEV_ID: 0x%08x 0x%08x\n", GREG32(FUSE, DEV_ID0), GREG32(FUSE, DEV_ID1)); |