//==========================================================================
//
//      flash_query.c
//
//      Flash programming - query device
//
//==========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under    
// the terms of the GNU General Public License as published by the Free     
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// version.                                                                 
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
// for more details.                                                        
//
// You should have received a copy of the GNU General Public License        
// along with eCos; if not, write to the Free Software Foundation, Inc.,    
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// General Public License v2.                                               
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// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas
// Date:         2000-07-26
// Purpose:      
// Description:  
//              
//####DESCRIPTIONEND####
//
//==========================================================================

#include "flash.h"

#include <pkgconf/hal.h>
#include <cyg/hal/hal_arch.h>


#define CNT 20*1000*10  // Approx 200ms

int
flash_query(unsigned char *data)
	__attribute__ ((section (".2ram.flash_query")));
int
flash_query(unsigned char *data)
{
    volatile unsigned long *lROM;
    volatile unsigned char *cROM;
    int i, cnt;

    lROM = (unsigned long *)0x41000000;
    cROM = (unsigned char *)0x41000000;

    lROM[0] = FLASH_Read_ID;
    for (cnt = CNT;  cnt > 0;  cnt--) ;
    for (i = 0;  i < 8;  i++) {
        *data++ = cROM[i];
    }
    lROM[0] = FLASH_Reset;

    return 0;
}
