diff options
| -rw-r--r-- | board/cr50/gpio.inc | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/board/cr50/gpio.inc b/board/cr50/gpio.inc index 8c698e549f..532fc67ff3 100644 --- a/board/cr50/gpio.inc +++ b/board/cr50/gpio.inc @@ -116,6 +116,12 @@ GPIO(I2C_SDA_INA, PIN(0, 13), GPIO_INPUT) * up the pinmux in board.c will have to change as well. */ GPIO(I2CS_SDA, PIN(0, 14), GPIO_INPUT) +/* + * Fake open drain on EC_TX_CR50_RX_OUT. When asserted, the signal can be used + * to enable UART programming mode on the EC. The signal needs to fake open + * drain so it can still be used as the cr50 rx signal when it is deasserted. + */ +GPIO(EC_TX_CR50_RX_OUT, PIN(0, 15), GPIO_ODR_HIGH) /* Unimplemented signals which we need to emulate for now */ /* TODO(wfrichar): Half the boards don't use this signal. Take it out. */ @@ -173,10 +179,11 @@ PINMUX(FUNC(UART2_RX), B6, DIO_INPUT) /* EC console */ * driving the cr50 uart TX at the same time as servo is driving those pins may * damage both servo and cr50. */ -PINMUX(GPIO(DETECT_AP), A3, DIO_INPUT) -PINMUX(GPIO(DETECT_EC), B6, DIO_INPUT) -PINMUX(GPIO(EC_TX_CR50_RX), B6, DIO_INPUT) -PINMUX(GPIO(DETECT_SERVO), B5, DIO_INPUT) +PINMUX(GPIO(DETECT_AP), A3, DIO_INPUT) +PINMUX(GPIO(DETECT_EC), B6, DIO_INPUT) +PINMUX(GPIO(EC_TX_CR50_RX), B6, DIO_INPUT) +PINMUX(GPIO(EC_TX_CR50_RX_OUT), B6, DIO_INPUT) +PINMUX(GPIO(DETECT_SERVO), B5, DIO_INPUT) /* * I2CS pins are bi-directional and would be configured here as shown. However, |