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