diff options
| -rw-r--r-- | common/system.c | 11 | ||||
| -rw-r--r-- | include/system.h | 9 |
2 files changed, 17 insertions, 3 deletions
diff --git a/common/system.c b/common/system.c index a8b9961b74..e188acc136 100644 --- a/common/system.c +++ b/common/system.c @@ -503,6 +503,13 @@ const char *ec_image_to_string(enum ec_image copy) return image_names[copy < ARRAY_SIZE(image_names) ? copy : 0]; } +__overridable void board_pulse_entering_rw(void) +{ + gpio_set_level(GPIO_EC_ENTERING_RW, 1); + usleep(MSEC); + gpio_set_level(GPIO_EC_ENTERING_RW, 0); +} + /** * Jump to what we hope is the init address of an image. * @@ -523,9 +530,7 @@ static void jump_to_image(uintptr_t init_addr) * drop it again so we don't leak power through the pulldown in the * Silego. */ - gpio_set_level(GPIO_ENTERING_RW, 1); - usleep(MSEC); - gpio_set_level(GPIO_ENTERING_RW, 0); + board_pulse_entering_rw(); /* * Since in EFS2, USB/PD won't be enabled in RO or if it's enabled in diff --git a/include/system.h b/include/system.h index be213bf2fe..c50c44797b 100644 --- a/include/system.h +++ b/include/system.h @@ -348,6 +348,15 @@ const char *system_get_chip_revision(void); int system_get_chip_unique_id(uint8_t **id); /** + * Optional board-level function to pulse EC_ENTERING_RW. + * + * This should ONLY be overridden in very rare circumstances! AKA there better + * be a good reason why you're overriding this! + * The function ***MUST*** assert EC_ENTERING_RW for 1ms and then deassert it. + */ +__override_proto void board_pulse_entering_rw(void); + +/** * Optional board-level callback functions to read a unique serial number per * chip. Default implementation reads from flash/otp (flash/otp_read_serial). */ |