nuttx/arch/xtensa/src/common/xtensa_etherstub.c

/****************************************************************************
 * arch/xtensa/src/common/xtensa_etherstub.c
 *
 *   Copyright (C) 2016 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 "xtensa.h"

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: up_netinitialize (stub)
 *
 * Description:
 *   This is a stub version os up_netinitialize.  Normally, up_netinitialize
 *   is defined in board/xyz_network.c for board-specific Ethernet
 *   implementations, or chip/xyx_ethernet.c for chip-specific Ethernet
 *   implementations.  The stub version here is used in the corner case where
 *   the network is enable yet there is no Ethernet driver to be initialized.
 *   In this case, up_initialize will still try to call up_netinitialize()
 *   when one does not exist.  This corner case would occur if, for example,
 *   only a USB network interface is being used or perhaps if a SLIP is
 *   being used).
 *
 *   Use of this stub is deprecated.  The preferred mechanism is to use
 *   CONFIG_NETDEV_LATEINIT=y to suppress the call to up_netinitialize() in
 *   up_initialize().  Then this stub would not be needed.
 *
 ****************************************************************************/

void up_netinitialize(void)
{
}