emif.c

针对ti c6713 dsk的flashburn烧写程序

/*******************************************************************************
 * 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: TMS320C64xx TEB emif code
 *
 * NOTES: Assumptions:
 *             TMS320C64x TEB
 *             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 "c6713dsk.h"
#include "emif.h"
#include "csl_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 )
{
    EMIF_Config emifCfg0 = {
        0x60                                  |
        EMIF_FMKS(GBLCTL, NOHOLD, DISABLE)    |
        EMIF_FMKS(GBLCTL, CLK1EN, DISABLE)    |
        EMIF_FMKS(GBLCTL, CLK2EN, ENABLE),

        EMIF_FMKS(CECTL, WRSETUP, DEFAULT)    |
        EMIF_FMKS(CECTL, WRSTRB, DEFAULT)     |
        EMIF_FMKS(CECTL, WRHLD, DEFAULT)      |
        EMIF_FMKS(CECTL, RDSETUP, DEFAULT)    |
        EMIF_FMKS(CECTL, TA, OF(2))           |
        EMIF_FMKS(CECTL, RDSTRB, DEFAULT)     |
        EMIF_FMKS(CECTL, MTYPE, SDRAM32)      |
        EMIF_FMKS(CECTL, RDHLD, DEFAULT),
                
        EMIF_FMKS(CECTL, WRSETUP, OF(0))      |
        EMIF_FMKS(CECTL, WRSTRB, OF(8))       |
        EMIF_FMKS(CECTL, WRHLD, OF(0))        |
        EMIF_FMKS(CECTL, RDSETUP, OF(0))      |
        EMIF_FMKS(CECTL, TA, OF(2))           |
        EMIF_FMKS(CECTL, RDSTRB, OF(8))       |
        EMIF_FMKS(CECTL, MTYPE, ASYNC8)       |
        EMIF_FMKS(CECTL, RDHLD, OF(0)),
        
        EMIF_FMKS(CECTL, WRSETUP, OF(2))      |
        EMIF_FMKS(CECTL, WRSTRB, OF(10))      |
        EMIF_FMKS(CECTL, WRHLD, OF(2))        |
        EMIF_FMKS(CECTL, RDSETUP, OF(2))      |
        EMIF_FMKS(CECTL, TA, OF(2))           |
        EMIF_FMKS(CECTL, RDSTRB, OF(10))      |
        EMIF_FMKS(CECTL, MTYPE, ASYNC32)      |
        EMIF_FMKS(CECTL, RDHLD, OF(2)),

        EMIF_FMKS(CECTL, WRSETUP, OF(2))      |
        EMIF_FMKS(CECTL, WRSTRB, OF(10))      |
        EMIF_FMKS(CECTL, WRHLD, OF(2))        |
        EMIF_FMKS(CECTL, RDSETUP, OF(2))      |
        EMIF_FMKS(CECTL, TA, OF(2))           |
        EMIF_FMKS(CECTL, RDSTRB, OF(10))      |
        EMIF_FMKS(CECTL, MTYPE, ASYNC32)      |
        EMIF_FMKS(CECTL, RDHLD, OF(2)),
        
        EMIF_FMKS(SDCTL, SDBSZ, 4BANKS)       |
        EMIF_FMKS(SDCTL, SDRSZ, 12ROW)        |
        EMIF_FMKS(SDCTL, SDCSZ, 8COL)         |
        EMIF_FMKS(SDCTL, RFEN, ENABLE)        |
        EMIF_FMKS(SDCTL, INIT, YES)           |
        EMIF_FMKS(SDCTL, TRCD, OF(1))         |
        EMIF_FMKS(SDCTL, TRP, OF(1))          |
        EMIF_FMKS(SDCTL, TRC, OF(5)),
    
        EMIF_FMKS(SDTIM, CNTR, OF(0))         |
        EMIF_FMKS(SDTIM, PERIOD, OF(1400)),

        EMIF_FMKS(SDEXT, WR2RD, OF(0))        |
        EMIF_FMKS(SDEXT, WR2DEAC, OF(2))      |
        EMIF_FMKS(SDEXT, WR2WR, OF(1))        |
        EMIF_FMKS(SDEXT, R2WDQM, OF(1))       |
        EMIF_FMKS(SDEXT, RD2WR, OF(0))        |
        EMIF_FMKS(SDEXT, RD2DEAC, OF(1))      |
        EMIF_FMKS(SDEXT, RD2RD, OF(0))        |
        EMIF_FMKS(SDEXT, THZP, OF(2))         |
        EMIF_FMKS(SDEXT, TWR, OF(1))          |
        EMIF_FMKS(SDEXT, TRRD, OF(0))         |
        EMIF_FMKS(SDEXT, TRAS, OF(4))         |
        EMIF_FMKS(SDEXT, TCL, OF(1))         
    };
    EMIF_config( &emifCfg0 );
        
    return;
}