nor_flash.h

i.MX31 NOR_flash(SPANSION_S71WS256ND0) bootloader src

/*-----------------------------------------------------------------------------				
* File:  nor_flash.h
*-----------------------------------------------------------------------
*             (C) Copyright 2001 Metrowerks Corp.
*                 ALL RIGHTS RESERVED .
*
*   THIS IS  CONFIDENTIAL  PROPRIETARY SOURCE CODE OF METROWERKS CORP.
*
*          The copyright notice above does not evidence any
*         actual or intended publication of such source code.
*-----------------------------------------------------------------------
*
* Description:  
*  This file contains the defines for NOR Flash 16bit (S29WSxxxN MirrorBit Flash Family )
*
* History:
*
* 23-Oct-2004    ZeldaL      Initial version 
*-----------------------------------------------------------------------------*/
#ifndef FLASH_H_H
#define FLASH_H_H
#define FLASH_RESET_CODE_LEN    2048

/* Return codes from flash_status */
#define STATUS_READY    0       /* ready for action */
#define STATUS_BUSY     1       /* operation in progress */
#define STATUS_ERSUSP   2       /* erase suspended */
#define STATUS_TIMEOUT  3       /* operation timed out */
#define STATUS_ERROR    4       /* unclassified but unhappy status */

// Mask status return code
#define MASK_STATUS_ERSUSP   0x0040       /* erase suspended */
#define MASK_STATUS_READY    0       /* ready for action */
#define MASK_STATUS_TIMEOUT  0x0020       /* operation timed out */

#define LED_BLINK_COUNT 100   

#define FLASH_MANUFACTURE_ID 0x0001  
#define FLASH_DEV_ID 0x227E  

#define FC_UNLOCK1				0x00AA
#define FC_UNLOCK2				0x0055
#define FC_ERASE_SETUP			0x0080
#define FC_SECTOR_ERASE			0x0030
#define FC_ALL_SECTORS_ERASE	0x0010
#define FC_PROGRAM				0x00A0
#define FC_RESET				0x00F0
#define FC_DEV_ID				0x0090

#define FC_BUFFER_PROGRAM		   0x0025
#define FC_BUFFER_PROGRAM_CONFIRM  0x0029


#define FA_BYTE_UNLOCK_1		0xAAA
#define FA_BYTE_UNLOCK_2		0x555
#define FA_BYTE_COMMAND			0xAAA

#define FA_WORD_UNLOCK_1		0xAAA //(0x555 < 1)
#define FA_WORD_UNLOCK_2		0x554 // (0x2AA < 1)
#define FA_WORD_COMMAND			0xAAA //(0x555 < 1)


#define FS_ERASE_DONE			0x00FF

#define FLASH_BYTE_1       1
#define FLASH_BYTES_2      2

#define MAX_ERR 5

#define ERASE_POLL_LIMIT	0x10000000
//#define ERASE_POLL_LIMIT	0x01000000 after orig
//#define PROGRAM_POLL_LIMIT	0x10000 orig
#define PROGRAM_POLL_LIMIT	0x100

#endif