2.3-InternetRadio/nutos/nut/arch/arm/dev/atmel/at91init.c

/*
 * Copyright (C) 2006 by egnite Software GmbH. All rights reserved.
 *
 * 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 of the copyright holders nor the names of
 *    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,
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 *
 * For additional information see http://www.ethernut.de/
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 */

/*
 * $Log$
 * Revision 1.2  2006/06/28 17:10:15  haraldkipp
 * Include more general header file for ARM.
 *
 * Revision 1.1  2006/03/02 19:43:11  haraldkipp
 * Added MCU specific hardware initialization routine. This should be done
 * later for all MCUs to avoid contaminating NutInit() with MCU specific
 * stuff. For the AT91 the spurious interrupt handler has been added,
 * which fixes SF 1440948.
 *
 */

#include <arch/arm.h>
#include <dev/irqreg.h>

/*!
 * \brief External interrupt 1 entry.
 */
static void SpuriousEntry(void) NUT_NAKED_FUNC;
void SpuriousEntry(void)
{
    IRQ_ENTRY();
    IRQ_EXIT();
}

/*!
 * \brief AT91 specific initialization.
 */
void McuInit(void)
{
    /* Set the vector. */
    outr(AIC_SPU, (unsigned int)SpuriousEntry);
}