| /**************************************************************************** |
| * boards/arm/rp23xx/common/src/rp23xx_common_initialize.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 "rp23xx_gpio.h" |
| #include "rp23xx_uniqueid.h" |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Name: rp23xx_common_earlyinitialize |
| * |
| * Description: |
| * This is the early initialization common to all RP23XX boards. |
| * It configures the UART pins so the system console can be used. |
| ****************************************************************************/ |
| |
| void rp23xx_common_earlyinitialize(void) |
| { |
| rp23xx_gpio_initialize(); |
| |
| /* Disable IE on GPIO 26-29 */ |
| |
| clrbits_reg32(RP23XX_PADS_BANK0_GPIO_IE, RP23XX_PADS_BANK0_GPIO(26)); |
| clrbits_reg32(RP23XX_PADS_BANK0_GPIO_IE, RP23XX_PADS_BANK0_GPIO(27)); |
| clrbits_reg32(RP23XX_PADS_BANK0_GPIO_IE, RP23XX_PADS_BANK0_GPIO(28)); |
| clrbits_reg32(RP23XX_PADS_BANK0_GPIO_IE, RP23XX_PADS_BANK0_GPIO(29)); |
| |
| /* Set default UART pin */ |
| |
| #ifdef CONFIG_RP23XX_UART0 |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART0_TX_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* TX */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART0_RX_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* RX */ |
| #ifdef CONFIG_SERIAL_OFLOWCONTROL |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART0_CTS_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* CTS */ |
| #endif |
| #ifdef CONFIG_SERIAL_IFLOWCONTROL |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART0_RTS_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* RTS */ |
| #endif |
| #endif |
| |
| #ifdef CONFIG_RP23XX_UART1 |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART1_TX_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* TX */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART1_RX_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* RX */ |
| #ifdef CONFIG_SERIAL_OFLOWCONTROL |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART1_CTS_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* CTS */ |
| #endif |
| #ifdef CONFIG_SERIAL_IFLOWCONTROL |
| rp23xx_gpio_set_function(CONFIG_RP23XX_UART1_RTS_GPIO, |
| RP23XX_GPIO_FUNC_UART); /* RTS */ |
| #endif |
| #endif |
| |
| #if defined(CONFIG_RP23XX_CLK_GPOUT0) |
| rp23xx_gpio_set_function(RP23XX_GPIO_PIN_CLK_GPOUT0, |
| RP23XX_GPIO_FUNC_GPCK); |
| #endif |
| #if defined(CONFIG_RP23XX_CLK_GPOUT1) |
| rp23xx_gpio_set_function(RP23XX_GPIO_PIN_CLK_GPOUT1, |
| RP23XX_GPIO_FUNC_GPCK); |
| #endif |
| #if defined(CONFIG_RP23XX_CLK_GPOUT2) |
| rp23xx_gpio_set_function(RP23XX_GPIO_PIN_CLK_GPOUT2, |
| RP23XX_GPIO_FUNC_GPCK); |
| #endif |
| #if defined(CONFIG_RP23XX_CLK_GPOUT3) |
| rp23xx_gpio_set_function(RP23XX_GPIO_PIN_CLK_GPOUT3, |
| RP23XX_GPIO_FUNC_GPCK); |
| #endif |
| } |
| |
| /**************************************************************************** |
| * Name: rp23xx_common_initialize |
| * |
| * Description: |
| * It configures the pin assignments that were not done in the early |
| * initialization. |
| ****************************************************************************/ |
| |
| void rp23xx_common_initialize(void) |
| { |
| #ifdef CONFIG_BOARDCTL_UNIQUEID |
| rp23xx_uniqueid_initialize(); |
| #endif |
| |
| /* Set default I2C pin */ |
| |
| #ifdef CONFIG_RP23XX_I2C0 |
| rp23xx_gpio_set_function(CONFIG_RP23XX_I2C0_SDA_GPIO, |
| RP23XX_GPIO_FUNC_I2C); /* SDA */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_I2C0_SCL_GPIO, |
| RP23XX_GPIO_FUNC_I2C); /* SCL */ |
| |
| rp23xx_gpio_set_pulls(CONFIG_RP23XX_I2C0_SDA_GPIO, true, false); /* Pull up */ |
| rp23xx_gpio_set_pulls(CONFIG_RP23XX_I2C0_SCL_GPIO, true, false); |
| #endif |
| |
| #ifdef CONFIG_RP23XX_I2C1 |
| rp23xx_gpio_set_function(CONFIG_RP23XX_I2C1_SDA_GPIO, |
| RP23XX_GPIO_FUNC_I2C); /* SDA */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_I2C1_SCL_GPIO, |
| RP23XX_GPIO_FUNC_I2C); /* SCL */ |
| |
| rp23xx_gpio_set_pulls(CONFIG_RP23XX_I2C1_SDA_GPIO, true, false); /* Pull up */ |
| rp23xx_gpio_set_pulls(CONFIG_RP23XX_I2C1_SCL_GPIO, true, false); |
| #endif |
| |
| /* Set default SPI pin */ |
| |
| #ifdef CONFIG_RP23XX_SPI0 |
| rp23xx_gpio_set_function(CONFIG_RP23XX_SPI0_RX_GPIO, |
| RP23XX_GPIO_FUNC_SPI); /* RX */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_SPI0_SCK_GPIO, |
| RP23XX_GPIO_FUNC_SPI); /* SCK */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_SPI0_TX_GPIO, |
| RP23XX_GPIO_FUNC_SPI); /* TX */ |
| |
| /* CSn is controlled by board-specific logic */ |
| |
| rp23xx_gpio_init(CONFIG_RP23XX_SPI0_CS_GPIO); /* CSn */ |
| rp23xx_gpio_setdir(CONFIG_RP23XX_SPI0_CS_GPIO, true); |
| rp23xx_gpio_put(CONFIG_RP23XX_SPI0_CS_GPIO, true); |
| #endif |
| |
| #ifdef CONFIG_RP23XX_SPI1 |
| rp23xx_gpio_set_function(CONFIG_RP23XX_SPI1_RX_GPIO, |
| RP23XX_GPIO_FUNC_SPI); /* RX */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_SPI1_SCK_GPIO, |
| RP23XX_GPIO_FUNC_SPI); /* SCK */ |
| rp23xx_gpio_set_function(CONFIG_RP23XX_SPI1_TX_GPIO, |
| RP23XX_GPIO_FUNC_SPI); /* TX */ |
| |
| /* CSn is controlled by board-specific logic */ |
| |
| rp23xx_gpio_init(CONFIG_RP23XX_SPI1_CS_GPIO); /* CSn */ |
| rp23xx_gpio_setdir(CONFIG_RP23XX_SPI1_CS_GPIO, true); |
| rp23xx_gpio_put(CONFIG_RP23XX_SPI1_CS_GPIO, true); |
| #endif |
| } |
