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hana: Add EC console USART internal pull-up

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This change prevents the floating RX console pin from entering unwanted
commands.

BRANCH=oak
BUG=b:67033247
TEST=manual
  load on hana and probe USART RX pin

Change-Id: I6dc05e03f82dcc71ea6f957f93c5fe7c6b65d2bf
Signed-off-by: Rong Chang <rongchang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/722381
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
This commit is contained in:
Rong Chang
2017-10-17 11:16:39 +08:00
committed by chrome-bot
parent ccfc005fa4
commit 67c8adc817
1 changed files with 1 additions and 1 deletions
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2
board/elm/gpio.inc
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@@ -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 */