diff options
Diffstat (limited to 'util')
| -rwxr-xr-x | util/flash_ec | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/util/flash_ec b/util/flash_ec index e256b9509a..b6bb70600f 100755 --- a/util/flash_ec +++ b/util/flash_ec @@ -163,6 +163,8 @@ DEFINE_boolean raiden "${FLAGS_FALSE}" \ DEFINE_string read "" "Pathname of the file to store EC firmware image." DEFINE_boolean ro "${FLAGS_FALSE}" \ "Write only the read-only partition" +DEFINE_boolean servo_micro_uart_rx_rework "${FLAGS_FALSE}" \ + "The servo micro for flashing has b/143163043#comment3 rework" DEFINE_integer timeout 600 \ "Timeout for flashing the EC, measured in seconds." DEFINE_boolean verbose "${FLAGS_FALSE}" \ @@ -431,6 +433,29 @@ ccd_ec_boot0() { dut_control ccd_ec_boot_mode_$2:$1 } +servo_micro_ec_boot0() { + # Some devices (e.g. hatch) control the RX UART pin via an on-board + # circuit that is controlled by the EC_FLASH_ODL pin. For those boards, + # we want to continue to drive the EC_FLASH_ODL if they do not have the + # servo micro rework listed below. + if [[ "${FLAGS_servo_micro_uart_rx_rework}" == ${FLAGS_TRUE} ]]; then + info "Servo micro $2 mode: $1 (using rx_rework)" + + # Setting the test point allows the EC_TX_SERVO_RX line + # to be driven by the servo for 'on' value. 'off' value + # lets the EC drive the EC_TX_SERVO_RX net. + # + # HW Rework (b/143163043#comment3): + # - Disconnect U45.1 from ground + # - Connected U45.1 to TP1 pad + dut_control tp1:$1 + dut_control servo_micro_ec_boot_mode_$2:$1 + else + info "Servo micro $2 mode: $1 (using FW_UP_L)" + dut-control ec_boot_mode:$1 + fi +} + servo_ec_boot0() { dut_control ec_boot_mode:$1 } @@ -453,6 +478,8 @@ ec_switch_boot0() { fi if [[ "${SERVO_TYPE}" =~ "ccd_cr50" ]] ; then stype=ccd + elif [[ "${SERVO_TYPE}" =~ "servo_micro" ]] ; then + stype=servo_micro elif [[ "${SERVO_TYPE}" =~ "servo" ]] ; then stype=servo else |