diff options
| -rw-r--r-- | src/drivers/tpm/cr50.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/drivers/tpm/cr50.c b/src/drivers/tpm/cr50.c index 1d6c69196f..4ab01fbf92 100644 --- a/src/drivers/tpm/cr50.c +++ b/src/drivers/tpm/cr50.c @@ -142,6 +142,14 @@ enum cb_err cr50_set_board_cfg(void) bool cr50_is_long_interrupt_pulse_enabled(void) { + /* + * Ti50 FW versions under 0.15 don't support the board cfg register, + * and all Ti50 versions only support long IRQ pulses. + * TODO: Remove this after all Ti50 stocks uprev to 0.15 or above. + */ + if (CONFIG(MAINBOARD_NEEDS_I2C_TI50_WORKAROUND)) + return true; + return !!(cr50_get_board_cfg() & CR50_BOARD_CFG_100US_READY_PULSE); } |