diff options
Diffstat (limited to 'src/mainboard/google/corsola')
| -rw-r--r-- | src/mainboard/google/corsola/chromeos.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/mainboard/google/corsola/chromeos.c b/src/mainboard/google/corsola/chromeos.c index 7d36a170fd..9717f9c2e1 100644 --- a/src/mainboard/google/corsola/chromeos.c +++ b/src/mainboard/google/corsola/chromeos.c @@ -2,8 +2,10 @@ #include <bootmode.h> #include <boot/coreboot_tables.h> +#include <ec/google/chromeec/ec.h> #include <gpio.h> #include <security/tpm/tis.h> +#include <stdbool.h> #include "gpio.h" @@ -45,8 +47,21 @@ void fill_lb_gpios(struct lb_gpios *gpios) int get_ec_is_trusted(void) { + uint32_t rev; + bool has_cr50 = false; + + /* + * Kingler and Krabby's rev 0 boards both use Cr50 instead of Ti50. In order to share + * the same firmware with newer rev, get the board rev from CBI, and ignore + * TPM_GOOGLE_TI50 when rev is 0. + */ + if (CONFIG(BOARD_GOOGLE_KINGLER) || CONFIG(BOARD_GOOGLE_KRABBY)) { + if (google_chromeec_cbi_get_board_version(&rev) == 0 && rev == 0) + has_cr50 = true; + } + /* With Ti50, VB2_CONTEXT_EC_TRUSTED should be set according to the boot mode. */ - if (CONFIG(TPM_GOOGLE_TI50)) + if (CONFIG(TPM_GOOGLE_TI50) && !has_cr50) return 0; /* EC is trusted if not in RW. This is active low. */ |