100 lines
3.9 KiB
C
100 lines
3.9 KiB
C
/****************************************************************************
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* configs/efm32-g8xx-stk/src/efm32_boot.c
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*
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* Copyright (C) 2014 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 <nuttx/board.h>
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#include "efm32_gpio.h"
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#include "efm32_start.h"
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#include "efm32-g8xx-stk.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: efm32_boardinitialize
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*
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* Description:
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* All EFM32 architectures must provide the following entry point. This
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* entry point is called early in the initialization before any devices
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* have been initialized.
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*
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****************************************************************************/
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void efm32_boardinitialize(void)
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{
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#ifdef CONFIG_EFM32_UART0
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/* The control MCU acts as a board controller (BC). There is a UART
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* connection between the EFM and the BC. The connection is made by
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* setting the EFM_BC_EN (PD13) line high. The EFM can then use the BSP to
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* send commands to the BC. When EFM_BC_EN is low, EFM_BC_TX and EFM_BC_RX
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* can be used by other applications.
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*/
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efm32_configgpio(GPIO_BC_EN);
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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_initialize
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*
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* Description:
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* If CONFIG_BOARD_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_initialize(). board_initialize() will be
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* called immediately after up_initialize() 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_INITIALIZE
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void board_initialize(void)
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{
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}
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#endif
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