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