nuttx/configs/stm32f4discovery/src/stm32_boot.c
Gregory Nutt a76e137ce2 Squashed commit of the following:
sched/init/nx_start.c:  Add support for CONFIG_BOARD_DRIVER_INITIALIZE.  If this option is selected then nx_start() will call a board-provided function board_driver_initialize() immediately after calling up_initialize().

    Rename CONFIG_BOARD_INITIALIZE to CONFIG_BOARD_LATE_INITIALIZE.

    Raname board_initialize() to board_late_initialize()
2019-02-18 15:32:00 -06:00

140 lines
4.8 KiB
C

/****************************************************************************
* configs/stm32f4discovery/src/stm32_boot.c
*
* Copyright (C) 2011-2012, 2015, 2018 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "itm.h"
#include "stm32.h"
#include "stm32f4discovery.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)
{
#ifdef CONFIG_SCHED_CRITMONITOR
/* Make sure the high speed cycle counter is running. It will be started
* automatically only if a debugger is connected.
*/
putreg32(0xc5acce55, ITM_LAR);
modifyreg32(DWT_CTRL, 0, DWT_CTRL_CYCCNTENA_MASK);
#endif
#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2) || defined(CONFIG_STM32_SPI3)
/* 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 (stm32_spidev_initialize)
{
stm32_spidev_initialize();
}
#endif
#ifdef CONFIG_STM32_OTGFS
/* 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. Presumably either CONFIG_USBDEV or CONFIG_USBHOST is also
* selected.
*/
if (stm32_usbinitialize)
{
stm32_usbinitialize();
}
#endif
#ifdef HAVE_NETMONITOR
/* Configure board resources to support networking. */
if (stm32_netinitialize)
{
stm32_netinitialize();
}
#endif
#ifdef CONFIG_ARCH_LEDS
/* Configure on-board LEDs if LED support has been selected. */
board_autoled_initialize();
#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)
{
/* Perform board-specific initialization */
(void)stm32_bringup();
}
#endif