/************************************************************************************ * configs/sam4s-xplained-pro/src/sam_boot.c * * Copyright (C) 2014-2015 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 #include #include "sam4s-xplained-pro.h" /************************************************************************************ * Definitions ************************************************************************************/ /************************************************************************************ * Private Functions ************************************************************************************/ /************************************************************************************ * Public Functions ************************************************************************************/ /************************************************************************************ * Name: sam_boardinitialize * * Description: * All SAM3U 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 sam_boardinitialize(void) { #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_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_INITIALIZE void board_initialize(void) { #if (defined(CONFIG_SAM34_WDT) && !defined(CONFIG_WDT_DISABLE_ON_RESET)) /* Configure watchdog timer and enable kicker kernel thread. */ DEBUGASSERT(up_wdginitialize() >= 0); #endif #ifndef CONFIG_ARCH_LEDS /* Initialize user led */ sam_ledinit(); #endif #ifdef CONFIG_TIMER /* Registers the timers and starts any async processes (which may include the scheduler) */ sam_timerinitialize(); #endif } #endif /* CONFIG_BOARD_INITIALIZE */