nuttx/boards/arm/rp2040/raspberrypi-pico/src/rp2040_boardinitialize.c

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/****************************************************************************
* boards/arm/rp2040/raspberrypi-pico/src/rp2040_boardinitialize.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "arm_internal.h"
#include "rp2040_gpio.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: rp2040_boardearlyinitialize
*
* Description:
*
****************************************************************************/
void rp2040_boardearlyinitialize(void)
{
rp2040_gpio_initialize();
/* Disable IE on GPIO 26-29 */
clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(26));
clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(27));
clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(28));
clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(29));
/* Set board LED pin */
rp2040_gpio_init(BOARD_GPIO_LED_PIN);
rp2040_gpio_setdir(BOARD_GPIO_LED_PIN, true);
rp2040_gpio_put(BOARD_GPIO_LED_PIN, true);
/* Set default UART pin */
#if defined(CONFIG_RP2040_UART0) && CONFIG_RP2040_UART0_GPIO >= 0
rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO,
RP2040_GPIO_FUNC_UART); /* TX */
rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO + 1,
RP2040_GPIO_FUNC_UART); /* RX */
#ifdef CONFIG_SERIAL_OFLOWCONTROL
rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO + 2,
RP2040_GPIO_FUNC_UART); /* CTS */
#endif
#ifdef CONFIG_SERIAL_IFLOWCONTROL
rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO + 3,
RP2040_GPIO_FUNC_UART); /* RTS */
#endif
#endif
#if defined(CONFIG_RP2040_UART1) && CONFIG_RP2040_UART1_GPIO >= 0
rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO,
RP2040_GPIO_FUNC_UART); /* TX */
rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO + 1,
RP2040_GPIO_FUNC_UART); /* RX */
#ifdef CONFIG_SERIAL_OFLOWCONTROL
rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO + 2,
RP2040_GPIO_FUNC_UART); /* CTS */
#endif
#ifdef CONFIG_SERIAL_IFLOWCONTROL
rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO + 3,
RP2040_GPIO_FUNC_UART); /* RTS */
#endif
#endif
}
/****************************************************************************
* Name: rp2040_boardinitialize
*
* Description:
*
****************************************************************************/
void rp2040_boardinitialize(void)
{
/* Set default I2C pin */
#if defined(CONFIG_RP2040_I2C0) && CONFIG_RP2040_I2C0_GPIO >= 0
rp2040_gpio_set_function(CONFIG_RP2040_I2C0_GPIO,
RP2040_GPIO_FUNC_I2C); /* SDA */
rp2040_gpio_set_function(CONFIG_RP2040_I2C0_GPIO + 1,
RP2040_GPIO_FUNC_I2C); /* SCL */
rp2040_gpio_set_pulls(CONFIG_RP2040_I2C0_GPIO, true, false); /* Pull up */
rp2040_gpio_set_pulls(CONFIG_RP2040_I2C0_GPIO + 1, true, false);
#endif
#if defined(CONFIG_RP2040_I2C1) && CONFIG_RP2040_I2C1_GPIO >= 0
rp2040_gpio_set_function(CONFIG_RP2040_I2C1_GPIO,
RP2040_GPIO_FUNC_I2C); /* SDA */
rp2040_gpio_set_function(CONFIG_RP2040_I2C1_GPIO + 1,
RP2040_GPIO_FUNC_I2C); /* SCL */
rp2040_gpio_set_pulls(CONFIG_RP2040_I2C1_GPIO, true, false); /* Pull up */
rp2040_gpio_set_pulls(CONFIG_RP2040_I2C1_GPIO + 1, true, false);
#endif
/* Set default SPI pin */
#if defined(CONFIG_RP2040_SPI0) && CONFIG_RP2040_SPI0_GPIO >= 0
rp2040_gpio_set_function(CONFIG_RP2040_SPI0_GPIO,
RP2040_GPIO_FUNC_SPI); /* RX */
rp2040_gpio_set_function(CONFIG_RP2040_SPI0_GPIO + 2,
RP2040_GPIO_FUNC_SPI); /* SCK */
rp2040_gpio_set_function(CONFIG_RP2040_SPI0_GPIO + 3,
RP2040_GPIO_FUNC_SPI); /* TX */
/* CSn is controlled by board-specific logic */
rp2040_gpio_init(CONFIG_RP2040_SPI0_GPIO + 1); /* CSn */
rp2040_gpio_setdir(CONFIG_RP2040_SPI0_GPIO + 1, true);
rp2040_gpio_put(CONFIG_RP2040_SPI0_GPIO + 1, true);
#endif
#if defined(CONFIG_RP2040_SPI1) && CONFIG_RP2040_SPI1_GPIO >= 0
rp2040_gpio_set_function(CONFIG_RP2040_SPI1_GPIO,
RP2040_GPIO_FUNC_SPI); /* RX */
rp2040_gpio_set_function(CONFIG_RP2040_SPI1_GPIO + 2,
RP2040_GPIO_FUNC_SPI); /* SCK */
rp2040_gpio_set_function(CONFIG_RP2040_SPI1_GPIO + 3,
RP2040_GPIO_FUNC_SPI); /* TX */
/* CSn is controlled by board-specific logic */
rp2040_gpio_init(CONFIG_RP2040_SPI1_GPIO + 1); /* CSn */
rp2040_gpio_setdir(CONFIG_RP2040_SPI1_GPIO + 1, true);
rp2040_gpio_put(CONFIG_RP2040_SPI1_GPIO + 1, true);
#endif
}