emif.c

基于ti 6416dsk的flashburn程序。

/*******************************************************************************
 * Copyright 2004-2005 - Software Design Solutions, Inc.  All rights reserved.
 *
 * Portions of this work have been provided under license with Texas 
 * Instruments Inc.
 * 
 * $RCSfile: emif.c,v $
 * $Revision: 1.2 $
 * 
 * Description: TMS320C6416 DSK emif code
 *
 * NOTES: Assumptions:
 *             TMS320C6416 DSK
 *             CPLD connected to EMIF B, TBCE0
 *             AMD29LV400BT flash connected to EMIF B, TBCE1
 *             SDRAM connected to EMIF A, TACE0
 *
 ******************************************************************************/
#define emif_c

/*---- compilation control switches ----------------------------------------*/

/*****************************************************************************
* INCLUDE FILES
*****************************************************************************/
/*---- system and platform files -------------------------------------------*/
#include <stdlib.h>
#include <stdio.h>
#include <c6x.h>
/*---- program files -------------------------------------------------------*/

#include "c6416dsk.h"
#include "emif.h"

/*****************************************************************************
* EXTERNAL REFERENCE    
*****************************************************************************/
/*---- data declarations ---------------------------------------------------*/

/*---- function prototypes -------------------------------------------------*/

/*****************************************************************************
* PUBLIC DECLARATIONS 
*****************************************************************************/

/*---- data declarations ---------------------------------------------------*/

/*****************************************************************************
* PRIVATE DECLARATIONS  
*****************************************************************************/
/*---- context -------------------------------------------------------------*/

/*---- data declarations ---------------------------------------------------*/
        
/*---- function prototypes -------------------------------------------------*/

/*---- macros --------------------------------------------------------------*/

/*****************************************************************************
* PUBLIC FUNCTION DEFINITIONS
*****************************************************************************/
/*****************************************************************************
* NAME:   EMIF_Init()
*
* DESCRIPTION: Setup the DSK EMIF A and B.       
*       
* NOTES:
*   
*****************************************************************************/

void EMIF_Init( void )
{
    EMIFA_Config EmifA;
    EMIFB_Config EmifB;

    // These settings are for 720 MHz operation but will also work at 600 MHz 
    EMIFA_getConfig( &EmifA );
    EmifA.gblctl =  0x00012070;
    EmifA.cectl0 =  0xffffffd3;
    EmifA.sdctl  =  0x47115000;
    EmifA.sdtim  =  0x00000618;  // Optimally 0x750 at 720 MHz
    EmifA.sdext  =  0x001faf4d;
    EMIFA_config( &EmifA );
    
    EMIFB_getConfig( &EmifB );
    EmifB.gblctl = 0x00002060;
    EmifB.cectl0 = 0x02a08a00;
    EmifB.cectl1 = 0x02a08a00;
    EMIFB_config( &EmifB );
    
    return;
}