137 lines
4.6 KiB
C
137 lines
4.6 KiB
C
/* pinmux_board_galileo.c - pin out mapping for the Galileo board */
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <nanokernel.h>
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#include <board.h>
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#include <device.h>
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#include <init.h>
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#include <pinmux.h>
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#include <i2c.h>
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#include <gpio.h>
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#include <pwm.h>
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#include <pinmux/pinmux.h>
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#include "pinmux_galileo.h"
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/* Alter this table to change the default pin settings on the Galileo Gen2
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* boards. Specifically change the PINMUX_FUNC_* value to represent the
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* functionaltiy desired
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*/
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static struct pin_config mux_config[PINMUX_NUM_PINS] = {
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/* pin, selected mode <mode A, mode B, mode C, mode D> */
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/* Analog Inputs */
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{ 0, PINMUX_FUNC_C }, /* GPIO3 (out), GPIO3 (in), UART0_RXD, NA */
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{ 1, PINMUX_FUNC_C }, /* GPIO4 (out), GPIO4 (in), UART0_TXD, NA */
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{ 2, PINMUX_FUNC_C }, /* GPIO5 (out), GPIO5 (in), UART1_RXD, NA */
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{ 3, PINMUX_FUNC_C }, /* GPIO6 (out), GPIO6 (in), UART1_TXD, PWM.LED1 */
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{ 4, PINMUX_FUNC_B }, /* GPIO_SUS4 (out), GPIO_SUS4 (in), NA, NA */
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{ 5, PINMUX_FUNC_B }, /* GPIO8 (out), GPIO8 (in), PWM.LED3, NA */
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{ 6, PINMUX_FUNC_B }, /* GPIO9 (out), GPIO9 (in), PWM.LED5, NA */
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{ 7, PINMUX_FUNC_A }, /* EXP1.P0_6 (out), EXP1.P0_6 (in), NA, NA */
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{ 8, PINMUX_FUNC_A }, /* EXP1.P1_0 (out), EXP1.P1_0 (in), NA, NA */
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{ 9, PINMUX_FUNC_B }, /* GPIO_SUS2 (out), GPIO_SUS2 (in), PWM.LED7, NA */
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#if defined(CONFIG_SPI_INTEL_PORT_1)
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{ 10, PINMUX_FUNC_A }, /* GPIO2 (out), GPIO2 (in), PWM.LED11, NA */
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{ 11, PINMUX_FUNC_D }, /* GPIO_SUS3 (out), GPIO_SUS3 (in), PWM.LED9, SPI1_MOSI */
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{ 12, PINMUX_FUNC_C }, /* GPIO7 (out), GPIO7 (in), SPI1_MISO, NA */
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{ 13, PINMUX_FUNC_C }, /* GPIO_SUS5 (out), GPIO_SUS5(in), SPI1_SCK, NA */
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#else
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{ 10, PINMUX_FUNC_B }, /* GPIO2 (out), GPIO2 (in), PWM.LED11, NA */
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{ 11, PINMUX_FUNC_B }, /* GPIO_SUS3 (out), GPIO_SUS3 (in), PWM.LED9, SPI1_MOSI */
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{ 12, PINMUX_FUNC_B }, /* GPIO7 (out), GPIO7 (in), SPI1_MISO, NA */
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{ 13, PINMUX_FUNC_B }, /* GPIO_SUS5 (out), GPIO_SUS5(in), SPI1_SCK, NA */
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#endif
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{ 14, PINMUX_FUNC_B }, /* EXP2.P0_0 (out)/ADC.IN0, EXP2.P0_0 (in)/ADC.IN0, NA, NA */
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{ 15, PINMUX_FUNC_B }, /* EXP2.P0_2 (out)/ADC.IN1, EXP2.P0_2 (in)/ADC.IN1, NA, NA */
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{ 16, PINMUX_FUNC_B }, /* EXP2.P0_4 (out)/ADC.IN2, EXP2.P0_4 (in)/ADC.IN2, NA, NA */
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{ 17, PINMUX_FUNC_B }, /* EXP2.P0_6 (out)/ADC.IN3, EXP2.P0_6 (in)/ADC.IN3, NA, NA */
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{ 18, PINMUX_FUNC_C }, /* EXP2.P1_0 (out), ADC.IN4, I2C_SDA, NA */
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{ 19, PINMUX_FUNC_C }, /* EXP2.P1_2 (out), ADC.IN5, I2C_SCL, NA */
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};
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struct galileo_data galileo_pinmux_driver = {
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.exp0 = NULL,
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.exp1 = NULL,
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.exp2 = NULL,
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.pwm0 = NULL,
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.mux_config = mux_config,
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};
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static int pinmux_galileo_initialize(struct device *port)
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{
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struct galileo_data *dev = port->driver_data;
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int i;
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/* Grab the EXP0, EXP1, EXP2, and PWM0 now by name */
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dev->exp0 = device_get_binding(CONFIG_PINMUX_GALILEO_EXP0_NAME);
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if (!dev->exp0) {
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return -EINVAL;
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}
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dev->exp1 = device_get_binding(CONFIG_PINMUX_GALILEO_EXP1_NAME);
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if (!dev->exp1) {
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return -EINVAL;
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}
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dev->exp2 = device_get_binding(CONFIG_PINMUX_GALILEO_EXP2_NAME);
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if (!dev->exp2) {
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return -EINVAL;
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}
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dev->pwm0 = device_get_binding(CONFIG_PINMUX_GALILEO_PWM0_NAME);
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if (!dev->pwm0) {
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return -EINVAL;
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}
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dev->gpio_dw = device_get_binding(CONFIG_PINMUX_GALILEO_GPIO_DW_NAME);
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if (!dev->gpio_dw) {
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return -EINVAL;
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}
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dev->gpio_core = device_get_binding(
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CONFIG_PINMUX_GALILEO_GPIO_INTEL_CW_NAME);
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if (!dev->gpio_core) {
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return -EINVAL;
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}
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dev->gpio_resume = device_get_binding(
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CONFIG_PINMUX_GALILEO_GPIO_INTEL_RW_NAME);
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if (!dev->gpio_resume) {
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return -EINVAL;
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}
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/*
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* Now that we have everything, let us start parsing everything
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* from the above mapping as selected by the end user
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*/
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for (i = 0; i < PINMUX_NUM_PINS; i++) {
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_galileo_pinmux_set_pin(port,
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mux_config[i].pin_num,
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mux_config[i].mode);
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}
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return 0;
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}
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/*
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* This needs to be a level 2 or later init process due to the following
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* dependency chain:
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* 0 - I2C
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* 1 - PCA9535 and PCAL9685
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* 2 - pinmux
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*/
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DEVICE_INIT(pmux, PINMUX_NAME, &pinmux_galileo_initialize,
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&galileo_pinmux_driver, NULL,
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SECONDARY, CONFIG_PINMUX_INIT_PRIORITY);
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