diff options
Diffstat (limited to 'board/it8xxx2_evb/gpio.inc')
| -rw-r--r-- | board/it8xxx2_evb/gpio.inc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/board/it8xxx2_evb/gpio.inc b/board/it8xxx2_evb/gpio.inc new file mode 100644 index 0000000000..dd4b88e416 --- /dev/null +++ b/board/it8xxx2_evb/gpio.inc @@ -0,0 +1,73 @@ +/* -*- mode:c -*- + * + * Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* Declare symbolic names for all the GPIOs that we care about. + * Note: Those with interrupt handlers must be declared first. */ + +GPIO_INT(POWER_BUTTON_L, PIN(E, 4), GPIO_INT_BOTH | GPIO_PULL_UP, power_button_interrupt) +#ifndef CONFIG_HOSTCMD_ESPI +GPIO_INT(PCH_PLTRST_L, PIN(E, 3), GPIO_INT_BOTH | GPIO_PULL_UP, lpcrst_interrupt) +#endif +GPIO_INT(LID_OPEN, PIN(E, 2), GPIO_INT_BOTH | GPIO_PULL_UP, lid_interrupt) +GPIO_INT(WP_L, PIN(I, 4), GPIO_INT_BOTH | GPIO_PULL_UP, switch_interrupt) /* Write protect input */ +#ifdef CONFIG_LOW_POWER_IDLE +GPIO_INT(UART1_RX, PIN(B, 0), GPIO_INT_FALLING | GPIO_PULL_UP, uart_deepsleep_interrupt) /* UART1 RX input */ +#endif + +GPIO(PCH_SMI_L, PIN(D, 3), GPIO_OUT_HIGH) +GPIO(PCH_SCI_L, PIN(D, 4), GPIO_OUT_HIGH) +GPIO(GATE_A20_H, PIN(B, 5), GPIO_OUT_HIGH) +GPIO(SYS_RESET_L, PIN(B, 6), GPIO_OUT_HIGH) +GPIO(LPC_CLKRUN_L, PIN(H, 0), GPIO_OUT_LOW) +GPIO(PCH_WAKE_L, PIN(B, 7), GPIO_ODR_HIGH) /* Wake signal from EC to PCH */ + +GPIO(I2C_A_SCL, PIN(B, 3), GPIO_INPUT) +GPIO(I2C_A_SDA, PIN(B, 4), GPIO_INPUT) +GPIO(I2C_B_SCL, PIN(C, 1), GPIO_INPUT) +GPIO(I2C_B_SDA, PIN(C, 2), GPIO_INPUT) +#ifdef CONFIG_IT83XX_SMCLK2_ON_GPC7 +GPIO(I2C_C_SCL, PIN(C, 7), GPIO_INPUT) +#else +GPIO(I2C_C_SCL, PIN(F, 6), GPIO_INPUT) +#endif +GPIO(I2C_C_SDA, PIN(F, 7), GPIO_INPUT) + +GPIO(I2C_E_SCL, PIN(E, 0), GPIO_INPUT) +GPIO(I2C_E_SDA, PIN(E, 7), GPIO_INPUT) + +#ifdef CONFIG_UART_HOST +GPIO(UART2_SIN1, PIN(H, 1), GPIO_INPUT) +GPIO(UART2_SOUT1, PIN(H, 2), GPIO_INPUT) +#endif + +/* KSO/KSI pins can be used as GPIO input. */ +GPIO(BOARD_VERSION1, PIN(KSO_H, 5), GPIO_INPUT) +GPIO(BOARD_VERSION2, PIN(KSO_H, 6), GPIO_INPUT) +GPIO(BOARD_VERSION3, PIN(KSO_H, 7), GPIO_INPUT) + +/* Unimplemented signals which we need to emulate for now */ +UNIMPLEMENTED(ENTERING_RW) + +ALTERNATE(PIN_MASK(B, 0x03), 1, MODULE_UART, GPIO_PULL_UP) /* UART1 */ +#ifdef CONFIG_UART_HOST +ALTERNATE(PIN_MASK(H, 0x06), 1, MODULE_UART, 0) /* UART2 */ +#endif +ALTERNATE(PIN_MASK(A, 0x40), 3, MODULE_SPI_MASTER, 0) /* SSCK of SPI */ +ALTERNATE(PIN_MASK(C, 0x28), 3, MODULE_SPI_MASTER, 0) /* SMOSI/SMISO of SPI */ +ALTERNATE(PIN_MASK(G, 0x01), 3, MODULE_SPI_MASTER, 0) /* SSCE1# of SPI */ +ALTERNATE(PIN_MASK(G, 0x04), 3, MODULE_SPI_MASTER, 0) /* SSCE0# of SPI */ +ALTERNATE(PIN_MASK(A, 0x80), 1, MODULE_PWM, 0) /* PWM7 for FAN1 */ +ALTERNATE(PIN_MASK(D, 0x40), 3, MODULE_PWM, 0) /* TACH0A for FAN1 */ +ALTERNATE(PIN_MASK(B, 0x18), 1, MODULE_I2C, 0) /* I2C A SCL/SDA */ +#ifdef CONFIG_IT83XX_SMCLK2_ON_GPC7 +ALTERNATE(PIN_MASK(C, 0x86), 1, MODULE_I2C, 0) /* I2C B SCL/SDA, C SCL */ +ALTERNATE(PIN_MASK(F, 0x80), 1, MODULE_I2C, 0) /* I2C C SDA */ +#else +ALTERNATE(PIN_MASK(C, 0x06), 1, MODULE_I2C, 0) /* I2C B SCL/SDA */ +ALTERNATE(PIN_MASK(F, 0xC0), 1, MODULE_I2C, 0) /* I2C C SCL/SDA */ +#endif +ALTERNATE(PIN_MASK(E, 0x81), 1, MODULE_I2C, 0) /* I2C E SCL/SDA E0/E7 */ |