sdk7a404_strataflash.c

sharp flash blob 的烧写代码

 *
 * Processing:
 *     See function.
 *
 * Parameters: None
 *
 * Outputs: None
 *
 * Returns: The total number of available bytes for all devices in FLASH
 *
 * Notes: None
 *
 **********************************************************************/
UNS_32 cfi_getdevsize(void)
{
    return cfi_dg.devsize;
}

/***********************************************************************
 *
 * Function: cfi_clear_block_lock
 *
 * Purpose: Clear a block lock
 *
 * Processing:
 *     See function.
 *
 * Parameters: 
 *     block: Block to unlock
 *
 * Outputs: None
 *
 * Returns: Nothing
 *
 * Notes: None
 *
 **********************************************************************/
void cfi_clear_block_lock(UNS_32 block)
{
    UNS_32 *addr = (UNS_32 *) cfi_get_block_address(block);
    UNS_32 tmp;
    /* Clear block lock */
    flash_write(addr, CFI32_SET_BLOCK_COMMAND);
    flash_write(addr, CFI32_CONFIRM_CLEAR_BLOCK_COMMAND);

    /* Wait until operation is complete */
    tmp=cfi_wait_read(addr);

    cfi_clear_status(addr);
}

/***********************************************************************
 *
 * Function: cfi_set_block_lock
 *
 * Purpose: Set a block lock
 *
 * Processing:
 *     See function.
 *
 * Parameters: 
 *     block: Block to lock
 *
 * Outputs: None
 *
 * Returns: Nothing
 *
 * Notes: None
 *
 **********************************************************************/
void cfi_set_block_lock(UNS_32 block)
{
    UNS_32 *addr = (UNS_32 *) cfi_get_block_address(block);
    int ret;
    
    /* Set block lock */
    flash_write(addr, CFI32_SET_BLOCK_COMMAND);
    flash_write(addr, CFI32_CONFIRM_SET_BLOCK_COMMAND);

    /* Wait until operation is complete */
    ret=cfi_read_status(addr);

   // if (ret=)
    cfi_wait_read(addr);

    cfi_clear_status(addr);
}

/***********************************************************************
 *
 * Function: cfi_get_block_count
 *
 * Purpose: Returns the total number of blocks in FLASH
 *
 * Processing:
 *     See function.
 *
 * Parameters: None
 *
 * Outputs: None
 *
 * Returns: Returns the total number of blocks in FLASH
 *
 * Notes: None
 *
 **********************************************************************/
UNS_32 cfi_get_block_count(void)
{
    return cfi_dg.blocks;
}

/***********************************************************************
 *
 * Function: cfi_get_block_address
 *
 * Purpose: Returns the starting address of the block
 *
 * Processing:
 *     See function.
 *
 * Parameters:
 *     block: Block to return starting address to
 *
 * Outputs: None
 *
 * Returns: Returns the starting address of the block
 *
 * Notes: None
 *
 **********************************************************************/
UNS_32 cfi_get_block_address(UNS_32 block)
{
    return cfi_dg.blk_addr[block];
}

/***********************************************************************
 *
 * Function: cfi_get_block_size
 *
 * Purpose: Returns the size of the block
 *
 * Processing:
 *     See function.
 *
 * Parameters:
 *     block: Block to return size of
 *
 * Outputs: None
 *
 * Returns: Returns the size of the block
 *
 * Notes: None
 *
 **********************************************************************/
UNS_32 cfi_get_block_size(UNS_32 block)
{
    return cfi_dg.blk_size[block];
}

/***********************************************************************
 *
 * Function: cfi_get_wb_size
 *
 * Purpose: Returns the size of the write buffer
 *
 * Processing:
 *     See function.
 *
 * Parameters: None
 *
 * Outputs: None
 *
 * Returns: Returns the size of the write buffer (in 32-bit words)
 *
 * Notes: None
 *
 **********************************************************************/
UNS_32 cfi_get_wb_size(void)
{
    return cfi_dg.wb_size;
}

/***********************************************************************
 *
 * Function: cfi_get_block_from_address
 *
 * Purpose: Returns the block number for the passed address
 *
 * Processing:
 *     See function.
 *
 * Parameters:
 *     addr: Address to return block number for
 *
 * Outputs: None
 *
 * Returns:
 *     Returns the block number for the passed address, or 0xFFFFFFFF
 *     if the block was not found for the address
 *
 * Notes: None
 *
 **********************************************************************/
UNS_32 cfi_get_block_from_address(UNS_32 *addr)
{
    UNS_32 found_block = 0xFFFFFFFF, block, saddr;

    /* Search all block address ranges until found */
    block = 0;
    saddr = (UNS_32) addr;
    while ((block < cfi_dg.blocks) && (found_block == 0xFFFFFFFF))
    {
        if ((saddr >= cfi_dg.blk_addr[block]) &&
            (saddr < (cfi_dg.blk_addr[block]) + cfi_dg.blk_size[block]))
        {
            /* Block found */
            found_block = block;
        }

        block++;
    }

    return found_block;
}

/***********************************************************************
 *
 * Function: cfi_erase_block
 *
 * Purpose: Erases a block of FLASH
 *
 * Processing:
 *     See function.
 *
 * Parameters:
 *     block: Block to erase
 *
 * Outputs: None
 *
 * Returns: Nothing
 *
 * Notes: None
 *
 **********************************************************************/
void cfi_erase_block(UNS_32 block)
{
    volatile UNS_32 *addr = (UNS_32 *) cfi_get_block_address(block);
    
    /* Erase lock */
    flash_write(addr, CFI32_BLOCKERASE_COMMAND);
    flash_write(addr, CFI32_CONFIRM_CLEAR_BLOCK_COMMAND);

    /* Wait until operation is complete */
    cfi_wait_read(addr);
    cfi_clear_status(addr);
}

/***********************************************************************
 *
 * Function: cfi_erase_device
 *
 * Purpose: Erases the entire FLASH device
 *
 * Processing:
 *     See function.
 *
 * Parameters: None
 *
 * Outputs: None
 *
 * Returns: Nothing
 *
 * Notes: None
 *
 **********************************************************************/
void cfi_erase_device(void)
{
    UNS_32 block;

    /* Erase all blocks */
    for (block = 0; block <= cfi_dg.blocks; block++)
    {
        cfi_clear_block_lock(block);
        cfi_erase_block(block);
        cfi_set_block_lock(block);
    }
}

/***********************************************************************
 *
 * Function: cfi_write
 *
 * Purpose: Write a single value (32-bits) to the FLASH devices
 *
 * Processing:
 *     See function.
 *
 * Parameters: 
 *     addr: Address to program
 *     val:  32-bit value to program at address
 *
 * Outputs: None
 *
 * Returns: Nothing
 *
 * Notes: The FLASH block must have been previously unlocked
 *
 **********************************************************************/
void cfi_writeword(volatile UNS_32 *addr,
                   UNS_32 val)
{
    UNS_32 tmp;
    flash_write(addr, CFI32_BYTEWRITE_COMMAND);
    flash_write(addr, val);

    /* Wait until device is read */
    tmp=cfi_wait_read(addr);
    cfi_clear_status(addr);
}

/***********************************************************************
 *
 * Function: cfi_exitprog_mode
 *
 * Purpose: Return FLASH devices to normal mode
 *
 * Processing:
 *     See function.
 *
 * Parameters: 
 *     addr: Any address of StrataFlash device
 *
 * Outputs: None
 *
 * Returns: Nothing
 *
 * Notes: None
 *
 **********************************************************************/
void cfi_exitprog_mode(volatile UNS_32 *addr)
{
    /* Exit programming mode */
    flash_write(addr, CFI32_WRITE_EXIT_COMMAND);
}

/***********************************************************************
 *
 * Function: cfi_write_to_buffer
 *
 * Purpose: Write data to FLASH (using buffer)
 *
 * Processing:
 *     See function.
 *
 * Parameters: 
 *     src:   Address of source data
 *     dest:  Address of FLASH to write data to
 *     words: Number of 32-bit words to write
 *
 * Outputs: None
 *
 * Returns: The number of actual 32-bit words written
 *
 * Notes: None
 *
 **********************************************************************/
INT_32 cfi_write_to_buffer(UNS_32 *src,
                           volatile UNS_32 *dest,
                           INT_32 words)
{
    UNS_32 count, *bsave;

    /* Get block number from this address */
    count = cfi_get_block_from_address((UNS_32 *) dest);

    /* Get starting block address of this block */
    bsave = (UNS_32 *) cfi_get_block_address(count);

    if (words > 0)
    {
        /* Block write command */
        flash_write(bsave, CFI32_BLOCK_WRITE_COMMAND);

        /* Wait until device is ready */
        cfi_wait_read(bsave);

        /* Write count (in bytes) limited to buffer size */
        if (words > cfi_dg.wb_size)
        {
            words = cfi_dg.wb_size;
        }

        /* Since the write buffer size is expected in bytes and we
           store the value in 32-bit words, convert the write count to
           a byte size first */
        flash_write(bsave, (words | (words << 16)));

        /* Write all data or until the write buffer is full,
           whichever comes first */
        count = 0;
        while ((words > 0) && (count < cfi_dg.wb_size))
        {
            /* Start programming */
            flash_write(dest, src[count]);
            dest++;
            count++;
            words--;
        }

        /* Confirm buffer write */
        flash_write(bsave, CFI32_CONFIRM_BUFWRITE_COMMAND);

        /* Wait until device is ready */
        cfi_wait_read(bsave);
    }

    return count;
}


/// creator add 
#define flash_base_addr 0x0000000
#define data_start_addr 0xc0000000
#define data_size 0x00020000	// 128k


#define MAIN_BLOCK_SIZE_32                   0x00040000 //256KB total, 128KB for each memory
#define MAIN_BLOCK_NUM_32						128

#define MAIN_BLOCK_SIZE	MAIN_BLOCK_SIZE_32

#define BLOB_FLASH_LEN 0x20000

#define BLOCK_SIZE 0x40000 	///256k for each erase block

int v_start( void )
{

	UNS_32 ret, data_write;
	unsigned char  *d;
	int i,j;
	unsigned long  *  src_addr;
	UNS_32 *tmp_addr  ;  ///should be 0x00000000
	unsigned long block_size;

	
	src_addr = data_start_addr;   ///should be 0xc0000000


	d=0x71000000;	///写cpld上的flash Register
	*d=(*d|0xff);
	
	//ret=cfi_detect(0x0);

	//cfi_erase_device();
	//while(1);	


	tmp_addr  = 0x0;
	block_size = 0x20000;

	/*for blob*/
	{
	
		        flash_write(tmp_addr, CFI32_SET_BLOCK_COMMAND);
		        flash_write(tmp_addr, CFI32_CONFIRM_CLEAR_BLOCK_COMMAND);
			cfi_wait_read(tmp_addr);
			cfi_clear_status(tmp_addr);

		        flash_write(tmp_addr, CFI32_BLOCKERASE_COMMAND);
		        flash_write(tmp_addr, CFI32_CONFIRM_CLEAR_BLOCK_COMMAND);
			cfi_wait_read(tmp_addr);
			cfi_clear_status(tmp_addr);
			
			for( j=0; j<block_size; j+=4 )
			{
					data_write = *src_addr++ ;
					cfi_writeword((volatile UNS_32 *)tmp_addr, data_write);
					tmp_addr = tmp_addr + 1;
					
			}

			flash_write(tmp_addr-block_size, CFI32_SET_BLOCK_COMMAND);
	    		flash_write(tmp_addr-block_size, CFI32_CONFIRM_SET_BLOCK_COMMAND);
	    		flash_write(tmp_addr-block_size, CFI32_CLEAR_STATUS_COMMAND);

			
		
	}

		
	return ret;
}