151 lines
5.6 KiB
C
151 lines
5.6 KiB
C
/************************************************************************************
|
|
* configs/sama5d3x-ek/src/sam_boot.c
|
|
*
|
|
* Copyright (C) 2013 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 "sama5d3x-ek.h"
|
|
|
|
/************************************************************************************
|
|
* Pre-processor Definitions
|
|
************************************************************************************/
|
|
|
|
/************************************************************************************
|
|
* Private Functions
|
|
************************************************************************************/
|
|
|
|
/************************************************************************************
|
|
* Public Functions
|
|
************************************************************************************/
|
|
|
|
/************************************************************************************
|
|
* Name: sam_boardinitialize
|
|
*
|
|
* Description:
|
|
* All SAMA5 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 sam_boardinitialize(void)
|
|
{
|
|
/* Configure SPI chip selects if 1) SPI is enable, and 2) the weak function
|
|
* sam_spiinitialize() has been brought into the link.
|
|
*/
|
|
|
|
#if defined(CONFIG_SAMA5_SPI0) || defined(CONFIG_SAMA5_SPI1)
|
|
if (sam_spiinitialize)
|
|
{
|
|
sam_spiinitialize();
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SAMA5_DDRCS) && !defined(CONFIG_SAMA5_BOOT_SDRAM)
|
|
|
|
/* Configure SDRAM if (1) SDRAM has been enabled in the NuttX configuration and
|
|
* (2) if we are not currently running out of SDRAM. If we are now running out
|
|
* of SDRAM then we have to assume that some second level bootloader has properly
|
|
* configured SDRAM for our use.
|
|
*/
|
|
|
|
sam_sdram_config();
|
|
|
|
#endif
|
|
|
|
/* Initialize USB if the 1) the HS host or device controller is in the
|
|
* configuration and 2) the weak function sam_usbinitialize() has been brought
|
|
* into the build. Presumeably either CONFIG_USBDEV or CONFIG_USBHOST is also
|
|
* selected.
|
|
*/
|
|
|
|
#if defined(CONFIG_SAMA5_UHPHS) || defined(CONFIG_SAMA5_UDPHS)
|
|
if (sam_usbinitialize)
|
|
{
|
|
sam_usbinitialize();
|
|
}
|
|
#endif
|
|
|
|
/* Configure board resources to support networking if the 1) networking is enabled,
|
|
* 2) the EMAC or GMAC module is enabled, and 2) the weak function
|
|
* sam_netinitialize() has been brought into the build.
|
|
*/
|
|
|
|
#ifdef HAVE_NETWORK
|
|
if (sam_netinitialize)
|
|
{
|
|
sam_netinitialize();
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_LEDS
|
|
/* Configure on-board LEDs if LED support has been selected. */
|
|
|
|
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 /* CONFIG_BOARD_INITIALIZE */
|