diff options
Diffstat (limited to 'src/mainboard/google/trogdor/romstage.c')
| -rw-r--r-- | src/mainboard/google/trogdor/romstage.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mainboard/google/trogdor/romstage.c b/src/mainboard/google/trogdor/romstage.c index 8b6f1dec8da8..e110460a1b44 100644 --- a/src/mainboard/google/trogdor/romstage.c +++ b/src/mainboard/google/trogdor/romstage.c @@ -5,6 +5,8 @@ #include <soc/qclib_common.h> #include <soc/watchdog.h> +#include "board.h" + static void prepare_usb(void) { /* @@ -22,4 +24,10 @@ void platform_romstage_main(void) /* QCLib: DDR init & train */ qclib_load_and_run(); + + /* This rail needs to be stable by the time we take the FPMCU out of + reset in ramstage, so already turn it on here. This needs to happen + at least 200ms after this pin was first driven low in the bootblock. */ + if (CONFIG(TROGDOR_HAS_FINGERPRINT)) + gpio_output(GPIO_EN_FP_RAILS, 1); } |