nuttx/boards/arm/stm32/stm32f103-minimum/src/stm32_boot.c

/****************************************************************************
 * boards/arm/stm32/stm32f103-minimum/src/stm32_boot.c
 *
 *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *           Laurent Latil <laurent@latil.nom.fr>
 *
 * 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 <nuttx/config.h>
#include <nuttx/spi/spi.h>
#include <debug.h>

#include <nuttx/board.h>
#include <arch/board/board.h>

#include "up_arch.h"
#include "stm32f103_minimum.h"

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: stm32_boardinitialize
 *
 * Description:
 *   All STM32 architectures must provide the following entry point.  This entry point
 *   is called early in the initialization -- after all memory has been configured
 *   and mapped but before any devices have been initialized.
 *
 ****************************************************************************/

void stm32_boardinitialize(void)
{
  /* Configure on-board LEDs if LED support has been selected. */

#ifdef CONFIG_ARCH_LEDS
  board_autoled_initialize();
#endif

  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
   * stm32_spidev_initialize() has been brought into the link.
   */

#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
  stm32_spidev_initialize();
#endif

   /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
    * disabled, and 3) the weak function stm32_usbinitialize() has been brought
    * into the build.
    */

#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)
  stm32_usbinitialize();
#endif
}

/****************************************************************************
 * Name: board_late_initialize
 *
 * Description:
 *   If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional initialization call
 *   will be performed in the boot-up sequence to a function called
 *   board_late_initialize().  board_late_initialize() will be called immediately after
 *   up_initialize() 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_LATE_INITIALIZE
void board_late_initialize(void)
{
#ifndef CONFIG_LIB_BOARDCTL
  /* Perform board initialization here instead of from the board_app_initialize(). */

  stm32_bringup();
#endif
}
#endif