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e96fb6b118
Includes a Mini-UART NSH console for the 4B, tested on the 4GB RAM model. Part of an I2C driver which can only read, boiler-plate for a SPI driver, and a GPIO driver with limited pins. Some tools are present for automatically fetching the boot files and creating the `config.txt` file based on selected Kconfig options.
123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/****************************************************************************
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* boards/arm64/bcm2711/raspberrypi-4b/src/rpi4b_bringup.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 "rpi4b.h"
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <syslog.h>
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#if defined(CONFIG_BCM2711_I2C_DRIVER)
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#include "bcm2711_i2cdev.h"
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#endif /* defined(CONFIG_BCM2711_I2C) */
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: rpi4b_bringup
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*
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* Description:
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* Bring up board features
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*
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****************************************************************************/
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int rpi4b_bringup(void)
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{
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int ret = OK;
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/* Initialize GPIO driver. */
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#if defined(CONFIG_DEV_GPIO)
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ret = bcm2711_dev_gpio_init();
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize GPIO driver: %d\n.", ret);
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}
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#endif // defined(CONFIG_DEV_GPIO)
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/* Initialize I2C interfaces. */
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#if defined(CONFIG_BCM2711_I2C)
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#if defined(CONFIG_BCM2711_I2C0)
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ret = bcm2711_i2cdev_initialize(0);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C0: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C0) */
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#if defined(CONFIG_BCM2711_I2C1)
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ret = bcm2711_i2cdev_initialize(1);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C1: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C1) */
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#if defined(CONFIG_BCM2711_I2C2)
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ret = bcm2711_i2cdev_initialize(2);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C2: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C2) */
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#if defined(CONFIG_BCM2711_I2C3)
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ret = bcm2711_i2cdev_initialize(3);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C3: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C3) */
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#if defined(CONFIG_BCM2711_I2C4)
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ret = bcm2711_i2cdev_initialize(4);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C4: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C4) */
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#if defined(CONFIG_BCM2711_I2C5)
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ret = bcm2711_i2cdev_initialize(5);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C5: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C5) */
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#if defined(CONFIG_BCM2711_I2C6)
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ret = bcm2711_i2cdev_initialize(6);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize I2C6: %d\n", ret);
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}
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#endif /* defined(CONFIG_BCM2711_I2C6) */
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#endif /* defined(CONFIG_BCM2711_I2C) */
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return ret;
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}
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