nuttx/arch/arm/src/sama5/sam_serialinit.c

112 lines
3.6 KiB
C

/****************************************************************************
* arch/arm/src/sama5/sam_serialinit.c
*
* Copyright (C) 2015 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 "sam_config.h"
#include "sam_dbgu.h"
#include "sam_serial.h"
#ifdef USE_SERIALDRIVER
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sam_earlyserialinit
*
* Description:
* Performs the low level serial initialization early so that the serial
* console will be available during bootup. This must be called
* before up_serialinit.
*
****************************************************************************/
void sam_earlyserialinit(void)
{
/* NOTE: All PIO configuration for the USARTs was performed in
* sam_lowsetup
*/
#if defined(SAMA5_HAVE_UART) || defined(SAMA5_HAVE_USART)
/* Initialize UART/USART drivers */
uart_earlyserialinit();
#endif
#ifdef SAMA5_HAVE_FLEXCOM_USART
/* Initialize Flexcom USARTs */
flexus_earlyserialinit();
#endif
}
/****************************************************************************
* Name: up_serialinit
*
* Description:
* Register all serial console and serial ports. This assumes
* that up_earlyserialinit was called previously.
*
****************************************************************************/
void up_serialinit(void)
{
#if defined(SAMA5_HAVE_UART) || defined(SAMA5_HAVE_USART)
/* Register UART/USART drivers */
uart_serialinit();
#endif
#ifdef SAMA5_HAVE_FLEXCOM_USART
/* Register Flexcom USART drivers */
flexus_serialinit();
#endif
/* Register the DBGU as well */
#ifdef CONFIG_SAMA5_DBGU
sam_dbgu_register();
#endif
}
#endif /* USE_SERIALDRIVER */