/************************************************************************************ * configs/stm32f4discovery/src/up_boot.c * arch/arm/src/board/up_boot.c * * Copyright (C) 2011-2012 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 "up_arch.h" #include "stm32f4discovery-internal.h" /************************************************************************************ * Definitions ************************************************************************************/ /************************************************************************************ * Private Functions ************************************************************************************/ /************************************************************************************ * Public Functions ************************************************************************************/ /************************************************************************************ * Name: stm32_boardinitialize * * Description: * All STM32 architectures must provide the following entry point. This entry point * is called early in the intitialization -- after all memory has been configured * and mapped but before any devices have been initialized. * ************************************************************************************/ void stm32_boardinitialize(void) { /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function * stm32_spiinitialize() has been brought into the link. */ #if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2) || defined(CONFIG_STM32_SPI3) if (stm32_spiinitialize) { stm32_spiinitialize(); } #endif /* Initialize USB if the 1) OTG FS controller is in the configuration and 2) * disabled, and 3) the weak function stm32_usbinitialize() has been brought * into the build. Presumeably either CONFIG_USBDEV or CONFIG_USBHOST is also * selected. */ #ifdef CONFIG_STM32_OTGFS if (stm32_usbinitialize) { stm32_usbinitialize(); } #endif /* Configure on-board LEDs if LED support has been selected. */ #ifdef CONFIG_ARCH_LEDS board_led_initialize(); #endif } /**************************************************************************** * Name: board_initialize * * Description: * If CONFIG_BOARD_INITIALIZE is selected, then an additional * initialization call will be performed in the boot-up sequence to a * function called board_initialize(). board_initialize() will be * called immediately after up_intiialize() is called and just before the * initial application is started. This additional initialization phase * may be used, for example, to initialize board-specific device drivers. * ****************************************************************************/ #ifdef CONFIG_BOARD_INITIALIZE void board_initialize(void) { /* Perform NSH initialization here instead of from the NSH. This * alternative NSH initialization is necessary when NSH is ran in user-space * but the initialization function must run in kernel space. */ #if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_NSH_ARCHINIT) (void)nsh_archinitialize(); #endif } #endif