intel_p30_2x16.c

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        }

        *gpulCurAddr    = FLASH_CLEAR_STATUS;
        gbUnlocked      = FALSE;

        //
        // Increment to the next block.
        //
        //gpulCurAddr += FLASH_BLOCK_SIZE>>2;
        gpulCurAddr+= sBlockInfo[gdwCurEraseRegion].block_size>>2;

	//
	//go to the next bloxk
	//
	 gdwCurEraseBlock = gdwCurEraseBlock+1;
	 if(gdwCurEraseBlock>=sBlockInfo[gdwCurEraseRegion].blocks)
	 {
		gdwCurEraseBlock=0;
		gdwCurEraseRegion=gdwCurEraseRegion+1;
		//
		//return error the current postiotn > the Flash MAX length
		//
		if(gdwCurEraseRegion>=gdwNumEraseRegion)
			return FALSE;
	 }



    }


    //
    // Erase the Flash
    //
    while((DWORD)gpulCurAddr < (gdwStartAddr + gdwLength))
    {

        //
        // Clear the lock bits if the flash block was locked.
        //
        *gpulCurAddr = FLASH_LOCK_BIT;
        *gpulCurAddr = FLASH_LOCK_CLEAR;
        *gpulCurAddr = FLASH_READ_STATUS;

        //
        // Wait for the Flash block command to succeed.
        //
        bSuccess = WaitForReady(gpulCurAddr, 10000, EXT_STATUS_WBUFFER_READY);
        *gpulCurAddr  = FLASH_CLEAR_STATUS;
        
        if(!bSuccess)
        {
            break;
        }


        //
        // Erase the flash block
        //
        *gpulCurAddr = FLASH_BLOCK_ERASE;
        *gpulCurAddr = FLASH_BLOCK_ERASE_RESUME;
        *gpulCurAddr = FLASH_READ_STATUS;
        
        //
        // Wait for the Flash block command to succeed.
        //
        bSuccess = WaitForReady(gpulCurAddr, 10000, EXT_STATUS_WBUFFER_READY);
        *gpulCurAddr  = FLASH_CLEAR_STATUS;
        
        if(!bSuccess)
        {
            break;
        }

        //
        // Occasionally write out a dot so they don't think
        // the system is dead.
        //
        EdbgOutputDebugString(".");
        
        //
        // Increment to the next block.
        //
        //gpulCurAddr += FLASH_BLOCK_SIZE>>2;
        gpulCurAddr+= sBlockInfo[gdwCurEraseRegion].block_size>>2;

	//
	//go to the next bloxk
	//
	 gdwCurEraseBlock = gdwCurEraseBlock+1;
	 if(gdwCurEraseBlock>=sBlockInfo[gdwCurEraseRegion].blocks)
	 {
		gdwCurEraseBlock=0;
		gdwCurEraseRegion=gdwCurEraseRegion+1;
		//
		//return error the current postiotn > the Flash MAX length
		//
		if(gdwCurEraseRegion>=gdwNumEraseRegion)
			return FALSE;
	 }



    }        
    return bSuccess;
}

extern volatile int bStop;
//****************************************************************************
// WriteFlashJ3_2x16
//****************************************************************************
//  Writes to J3 Flash.  Different from parameters than  OEMWriteFlash.
//
//  dwDest       -  Address in flash where the start of the downloaded image 
//                  is to be written. Note that if this is not a flash 
//                  block-aligned address, the platform code will need 
//                  to take this into account and handle it as a special
//                  case. 
//
//  dwSource     -  Location of the Flash Cache.
//
//  dwLength     -  Length of the image, in bytes, to be written to flash. 
// 
//
BOOL  WriteFlashP30_2x16(DWORD dwDest, DWORD dwSource, DWORD dwLength)
{
    ULONG               ulCount;
    ULONG               ulEndCount;
    volatile PULONG     pulBlockAddress;
    volatile PULONG     pulDest, pulSource;
    ULONG              usWordsToWrite;
    ULONG               ulStart,ulCurrent;
    BOOL                bSuccess;
    ULONG               ulAddDelay;

    ULONG ulBufferSizeLen=0;	

    ulCount     = 0;
    pulDest     = (PULONG)dwDest;
    pulSource   = (PULONG)dwSource;


//
//get the current region and block index
//
   GotEraseFlashSectorIndex_P30_2X16(dwDest);
	
    while( ulCount < dwLength)
    {   

#if(FCLOCK<=166)     
        //
        // Calculate the block address
        //
        gdwCurEraseBlockMask	=	~(sBlockInfo[gdwCurEraseRegion].block_size-1);
        pulBlockAddress = (ULONG *)(((ULONG)&pulDest[ulCount>>2]) &  gdwCurEraseBlockMask);        
        
        //
        // Write the Flash to buffer command until the flash is ready.
        //
        ulStart = GetSystemTimeInMsec();
        ulAddDelay = 1;
        do
        {    
            *pulBlockAddress = FLASH_WRITE_TO_BUFFER;
            
            //
            // Check to make sure that we are not in a loop.
            //
            ulCurrent = GetSystemTimeInMsec();
            if(ulStart + 10000 <ulCurrent)
            {
                EdbgOutputDebugString("FLASH_WRITE_TO_BUFFER - Failed\n.");
                EdbgOutputDebugString("pulBlockAddress  = %x.\n",(ULONG)pulBlockAddress);
                EdbgOutputDebugString("*pulBlockAddress = %x.\n",(ULONG)*pulBlockAddress);
                *pulBlockAddress = FLASH_READ_STATUS;
                EdbgOutputDebugString("*FLASH_READ_STATUS pulBlockAddress = %x.\n",(ULONG)*pulBlockAddress);
                while(1);
                return FALSE;
            }                
            DelayInuSec(ulAddDelay);
            ulAddDelay =(ulAddDelay<<1);
        }            
        while((*pulBlockAddress & EXT_STATUS_WBUFFER_READY)!= EXT_STATUS_WBUFFER_READY);
        
        //
        // Program the Flash size to be written.
        //
        usWordsToWrite = (gdwFlashBufferSize - 1)>>2;
        *pulBlockAddress = (usWordsToWrite<<16) | usWordsToWrite;
        
        ulEndCount  = ulCount + gdwFlashBufferSize;

	ulBufferSizeLen = ulBufferSizeLen+gdwFlashBufferSize;

	
        do
        {
            pulDest[ulCount>>2] = pulSource[ulCount>>2]; 
            ulCount += sizeof(ULONG);
	        //
			// Account for timing problem.
			//
			do
			{
			} while(!(*pulBlockAddress & EXT_STATUS_WBUFFER_READY) && (ulAddDelay-- != 0));
        } while(ulCount < ulEndCount);


	if(ulBufferSizeLen>sBlockInfo[gdwCurEraseRegion].block_size)
	{
		ulBufferSizeLen=0;
		//
		//go to the next bloxk
		//
		 gdwCurEraseBlock = gdwCurEraseBlock+1;
		 if(gdwCurEraseBlock>=sBlockInfo[gdwCurEraseRegion].blocks)
		 {
			gdwCurEraseBlock=0;
			gdwCurEraseRegion=gdwCurEraseRegion+1;
			//
			//return error the current postiotn > the Flash MAX length
			//
			if(gdwCurEraseRegion>=gdwNumEraseRegion)
				return FALSE;
		 }


	}

		
        //
        // End of programming the block.
        //
        *pulBlockAddress = FLASH_BLOCK_PROGRAM_RESUME;

        // DelayInuSec(500);
        
        //
        // Occasionally write out a dot so they don't think
        // the system is dead.
        //
        if(((ULONG)&pulDest[ulCount>>2] & (sBlockInfo[gdwCurEraseRegion].block_size - 1)) == 0)
        {
            EdbgOutputDebugString(".");
        }            
        
        //
        // Wait for the Flash block command to succeed.
        //
        bSuccess = WaitForReady(pulBlockAddress, 6000, EXT_STATUS_WBUFFER_READY);
        if(!bSuccess)
        {
            EdbgOutputDebugString("FLASH_BLOCK_PROGRAM_RESUME - Failed\n.");
            EdbgOutputDebugString("pulBlockAddress  = %x.\n",(ULONG)pulBlockAddress);
            EdbgOutputDebugString("*pulBlockAddress = %x.\n",(ULONG)*pulBlockAddress);
            *pulBlockAddress = FLASH_READ_STATUS;
            EdbgOutputDebugString("*FLASH_READ_STATUS pulBlockAddress = %x.\n",(ULONG)*pulBlockAddress);
            while(1);
            break;
        }            
    }        
    *pulBlockAddress =  FLASH_READ_MODE;
    return TRUE;
#else
	int i;
	int ulCountCmp;
	ulCountCmp = ulCount;


	//EdbgOutputDebugString("200\r\n");

	for(i=0;( i<(sBlockInfo[gdwCurEraseRegion].block_size/2)) && (ulCount < dwLength); i++)
	//for(i=0; i<4096 && ulCount < dwLength; i++)
	{
		pulDest[ulCount>>1] = 0x00400040;	//#define     FLASH_WRITE_WORD    0x0040

		pulDest[ulCount>>1] = pulSource[ulCount>>1];
		bSuccess = WaitForReady(&pulDest[ulCount>>1], 50000, EXT_STATUS_WBUFFER_READY);
		if( !bSuccess )
		{
			EdbgOutputDebugString("\r\nfail at 0x%x 0x%x\r\n.",
				(ULONG) (&pulDest[ulCount>>1]),
				(ULONG) (&pulSource[ulCount>>1]));
			while (1);
			return bSuccess;
		}
		//if( ulCount % 1023 == 0)
		//	EdbgOutputDebugString("+");
		ulCount += sizeof(ULONG);
	}

	if( bSuccess )
	{
		pulDest[ulCountCmp>>1] = FLASH_READ_MODE;

		for(i=0; (i<(sBlockInfo[gdwCurEraseRegion].block_size/2)) && (ulCountCmp < (int)dwLength); i++)
		//for(i=0; i<4096 && ulCountCmp < dwLength; i++)
		{
			// verify pargramed word
			unsigned short t;
			//pusDest[ulCountCmp>>1] = FLASH_READ_MODE;
			t = pulDest[ulCountCmp>>1];
			if( t != pulSource[ulCountCmp>>1] )
			{
				bSuccess = FALSE;
				EdbgOutputDebugString("\r\nmismatch at 0x%x 0x%x 0x%x != 0x%x  failed\r\n.",
					(ULONG) (&pulDest[ulCountCmp>>1]),
					(ULONG) (&pulSource[ulCountCmp>>1]),
					t,
					pulSource[ulCountCmp>>1] );
				while(1);
				return bSuccess;			
			}		
			//if( ulCountCmp % 1023 == 0)
			//	EdbgOutputDebugString("-");
			ulCountCmp += sizeof(ULONGT);
		}
	}
	EdbgOutputDebugString(".");

	//
	//go to the next bloxk
	//
	 gdwCurEraseBlock = gdwCurEraseBlock+1;
	 if(gdwCurEraseBlock>=sBlockInfo[gdwCurEraseRegion].blocks)
	 {
		gdwCurEraseBlock=0;
		gdwCurEraseRegion=gdwCurEraseRegion+1;
		//
		//return error the current postiotn > the Flash MAX length
		//
		if(gdwCurEraseRegion>=gdwNumEraseRegion)
			return FALSE;
	 }
	 
    pulBlockAddress = (unsigned long*)PHYSICAL_ADDR_FLASH_INTEL;         

    *pulBlockAddress =  FLASH_READ_MODE;

    return TRUE;
   
#endif


}



//****************************************************************************
// WaitForReady
//****************************************************************************
// Wait until the flash is ready.
// 
//
static int  WaitForReady
(
    volatile ULONG *pFlash, 
    ULONG ulTimeoutInMsec, 
    ULONG ulBitField
)
{
    ULONG       ulStart;
    ULONG       ulCurrent;
    BOOL        bSuccess = FALSE;
   
    ulStart = GetSystemTimeInMsec();
    do
    {
        //
        // See if there are errors.
        //
        if((*pFlash & ulBitField)== ulBitField)
        {
            bSuccess = TRUE;
            break;
        }
        
        //
        // Get the current time.
        //
        ulCurrent = GetSystemTimeInMsec();
    } while(ulCurrent<ulStart + ulTimeoutInMsec);

    if(!bSuccess)
    {
        EdbgOutputDebugString("*pFlash        = %x .\n",(ULONG)*pFlash);
    }        
    
    return bSuccess;
}