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[/] [ao486/] [trunk/] [syn/] [components/] [vga/] [software/] [exe_bsp/] [HAL/] [src/] [alt_load.c] - Blame information for rev 2

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1 2 alfik
/******************************************************************************
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*                                                                             *
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* License Agreement                                                           *
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*                                                                             *
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* Copyright (c) 2004-2005 Altera Corporation, San Jose, California, USA.      *
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* All rights reserved.                                                        *
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*                                                                             *
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* Permission is hereby granted, free of charge, to any person obtaining a     *
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* copy of this software and associated documentation files (the "Software"),  *
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* to deal in the Software without restriction, including without limitation   *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,    *
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* and/or sell copies of the Software, and to permit persons to whom the       *
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* Software is furnished to do so, subject to the following conditions:        *
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*                                                                             *
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* The above copyright notice and this permission notice shall be included in  *
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* all copies or substantial portions of the Software.                         *
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*                                                                             *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,    *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING     *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER         *
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* DEALINGS IN THE SOFTWARE.                                                   *
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*                                                                             *
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* This agreement shall be governed in all respects by the laws of the State   *
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* of California and by the laws of the United States of America.              *
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*                                                                             *
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* Altera does not recommend, suggest or require that this reference design    *
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* file be used in conjunction or combination with any other product.          *
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******************************************************************************/
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#include "sys/alt_load.h"
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#include "sys/alt_cache.h"
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/*
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 * Linker defined symbols.
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 */
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extern void __flash_rwdata_start;
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extern void __ram_rwdata_start;
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extern void __ram_rwdata_end;
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extern void __flash_rodata_start;
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extern void __ram_rodata_start;
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extern void __ram_rodata_end;
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extern void __flash_exceptions_start;
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extern void __ram_exceptions_start;
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extern void __ram_exceptions_end;
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/*
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 * alt_load() is called when the code is executing from flash. In this case
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 * there is no bootloader, so this application is responsible for loading to
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 * RAM any sections that are required.
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 */
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void alt_load (void)
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{
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  /*
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   * Copy the .rwdata section.
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   */
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  alt_load_section (&__flash_rwdata_start,
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                                &__ram_rwdata_start,
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                                &__ram_rwdata_end);
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  /*
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   * Copy the exception handler.
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   */
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  alt_load_section (&__flash_exceptions_start,
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                                &__ram_exceptions_start,
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                                &__ram_exceptions_end);
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  /*
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   * Copy the .rodata section.
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   */
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  alt_load_section (&__flash_rodata_start,
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                                &__ram_rodata_start,
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                                &__ram_rodata_end);
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  /*
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   * Now ensure that the caches are in synch.
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   */
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  alt_dcache_flush_all();
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  alt_icache_flush_all();
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}

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