/**************************************************************************** * boards/arm/stm32h7/stm32h747i-disco/src/stm32_bringup.c * * Copyright (C) 2019 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include "stm32h747i-disco.h" #ifdef CONFIG_BUTTONS # include #endif #ifdef HAVE_RTC_DRIVER # include # include "stm32_rtc.h" #endif /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: stm32_i2c_register * * Description: * Register one I2C drivers for the I2C tool. * ****************************************************************************/ #if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL) static void stm32_i2c_register(int bus) { FAR struct i2c_master_s *i2c; int ret; i2c = stm32_i2cbus_initialize(bus); if (i2c == NULL) { syslog(LOG_ERR, "ERROR: Failed to get I2C%d interface\n", bus); } else { ret = i2c_register(i2c, bus); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to register I2C%d driver: %d\n", bus, ret); stm32_i2cbus_uninitialize(i2c); } } } #endif /**************************************************************************** * Name: stm32_i2ctool * * Description: * Register I2C drivers for the I2C tool. * ****************************************************************************/ #if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL) static void stm32_i2ctool(void) { #ifdef CONFIG_STM32H7_I2C1 stm32_i2c_register(1); #endif #ifdef CONFIG_STM32H7_I2C2 stm32_i2c_register(2); #endif #ifdef CONFIG_STM32H7_I2C3 stm32_i2c_register(3); #endif #ifdef CONFIG_STM32H7_I2C4 stm32_i2c_register(4); #endif } #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: stm32_bringup * * Description: * Perform architecture-specific initialization * * CONFIG_BOARD_LATE_INITIALIZE=y : * Called from board_late_initialize(). * * CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y && * CONFIG_NSH_ARCHINIT: * Called from the NSH library * ****************************************************************************/ int stm32_bringup(void) { int ret = OK; #ifdef HAVE_RTC_DRIVER FAR struct rtc_lowerhalf_s *lower; #endif UNUSED(ret); #if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL) stm32_i2ctool(); #endif #ifdef CONFIG_FS_PROCFS #ifdef CONFIG_STM32_CCM_PROCFS /* Register the CCM procfs entry. This must be done before the procfs is * mounted. */ (void)ccm_procfs_register(); #endif /* CONFIG_STM32_CCM_PROCFS */ /* Mount the procfs file system */ ret = mount(NULL, STM32_PROCFS_MOUNTPOINT, "procfs", 0, NULL); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to mount the PROC filesystem: %d (%d)\n", ret, errno); } #endif /* CONFIG_FS_PROCFS */ #ifdef HAVE_RTC_DRIVER /* Instantiate the STM32 lower-half RTC driver */ lower = stm32_rtc_lowerhalf(); if (!lower) { syslog(LOG_ERR, "ERROR: Failed to instantiate the RTC lower-half driver\n"); return -ENOMEM; } else { /* Bind the lower half driver and register the combined RTC driver * as /dev/rtc0 */ ret = rtc_initialize(0, lower); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to bind/register the RTC driver: %d\n", ret); return ret; } } #endif #ifdef CONFIG_BUTTONS /* Register the BUTTON driver */ ret = btn_lower_initialize("/dev/buttons"); if (ret < 0) { syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret); } #endif /* CONFIG_BUTTONS */ #ifdef CONFIG_ADC /* Initialize ADC and register the ADC driver. */ ret = stm32_adc_setup(); if (ret < 0) { syslog(LOG_ERR, "ERROR: stm32_adc_setup failed: %d\n", ret); } #endif /* CONFIG_ADC */ #if defined(CONFIG_FAT_DMAMEMORY) if (stm32_dma_alloc_init() < 0) { syslog(LOG_ERR, "DMA alloc FAILED"); } #endif #ifdef HAVE_SDIO /* Initialize the SDIO block driver */ ret = stm32_sdio_initialize(); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to initialize MMC/SD driver: %d\n", ret); } #endif return OK; }