a76e137ce2
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()
156 lines
5.6 KiB
C
156 lines
5.6 KiB
C
/************************************************************************************
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* configs/sama5d4-ek/src/sam_boot.c
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*
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* Copyright (C) 2014-2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include "sam_sckc.h"
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#include "sama5d4-ek.h"
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/************************************************************************************
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* Private Functions
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************************************************************************************/
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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/************************************************************************************
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* Name: sam_boardinitialize
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*
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* Description:
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* All SAMA5 architectures must provide the following entry point. This entry
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* point is called early in the initialization -- after all memory has been
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* configured and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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void sam_boardinitialize(void)
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{
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#ifdef CONFIG_SAMA5D4EK_SLOWCLOCK
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/* Enable the external slow clock */
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sam_sckc_enable(true);
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#endif
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/* Configure SPI chip selects if 1) SPI is enable, and 2) the weak function
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* sam_spidev_initialize() has been brought into the link.
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*/
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#if defined(CONFIG_SAMA5_SPI0) || defined(CONFIG_SAMA5_SPI1) || \
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defined(CONFIG_SAMA5_SPI2)
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if (sam_spidev_initialize)
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{
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sam_spidev_initialize();
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}
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#endif
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#if defined(CONFIG_SAMA5_DDRCS) && !defined(CONFIG_SAMA5_BOOT_SDRAM)
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/* Configure SDRAM if (1) SDRAM has been enalbled in the NuttX configuration and
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* (2) if we are not currently running out of SDRAM. If we are now running out
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* of SDRAM then we have to assume that some second level bootloader has properly
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* configured SDRAM for our use.
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*/
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sam_sdram_config();
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#endif
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/* Initialize USB if the 1) the HS host or device controller is in the
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* configuration and 2) the weak function sam_usbinitialize() has been brought
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* into the build. Presumeably either CONFIG_USBDEV or CONFIG_USBHOST is also
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* selected.
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*/
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#if defined(CONFIG_SAMA5_UHPHS) || defined(CONFIG_SAMA5_UDPHS)
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if (sam_usbinitialize)
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{
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sam_usbinitialize();
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}
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#endif
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/* Configure board resources to support networkingif the 1) networking is enabled,
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* 2) the EMAC or GMAC module is enabled, and 2) the weak function
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* sam_netinitialize() has been brought into the build.
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*/
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#ifdef HAVE_NETWORK
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if (sam_netinitialize)
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{
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sam_netinitialize();
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}
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#endif
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#ifdef CONFIG_ARCH_LEDS
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/* Configure on-board LEDs if LED support has been selected. */
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board_autoled_initialize();
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#endif
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}
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/****************************************************************************
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* Name: board_late_initialize
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*
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* Description:
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* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
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* initialization call will be performed in the boot-up sequence to a
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* function called board_late_initialize(). board_late_initialize() will be
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* called immediately after up_intiialize() is called and just before the
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* initial application is started. This additional initialization phase
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* may be used, for example, to initialize board-specific device drivers.
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*
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****************************************************************************/
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#ifdef CONFIG_BOARD_LATE_INITIALIZE
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void board_late_initialize(void)
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{
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/* Perform board initialization */
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(void)sam_bringup();
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}
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#endif /* CONFIG_BOARD_LATE_INITIALIZE */
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