hana: Add EC console USART internal pull-up
This change prevents the floating RX console pin from entering unwanted
commands.
BRANCH=oak
TEST=manual
load on hana and probe USART RX pin
@@ -106,7 +106,7 @@ GPIO(SPI2_NSS_DB, PIN(F, 6), GPIO_OUT_HIGH) /* daughterboard */
/* sensor power control */
GPIO(SENSOR_PWR_EN_L, PIN(D, 11), GPIO_OUT_LOW)
-ALTERNATE(PIN_MASK(A, 0x0600), 1, MODULE_UART, 0) /* USART1: PA9/PA10 */
+ALTERNATE(PIN_MASK(A, 0x0600), 1, MODULE_UART, GPIO_PULL_UP) /* USART1: PA9/PA10 */
ALTERNATE(PIN_MASK(B, 0x00c0), 1, MODULE_I2C, 0) /* I2C MASTER:PB6/7 */
ALTERNATE(PIN_MASK(B, 0x6000), 5, MODULE_I2C, 0) /* I2C MASTER:PB13/14 */
ALTERNATE(PIN_MASK(A, 0x00f0), 0, MODULE_SPI, 0) /* SPI SLAVE:PA4/5/6/7 */
