nfdc2048.c

cpc-1631的BSP包for VxWorks操作系统

/*
 * $Log:   V:/nfdc2048.c_v  $
 * 
 *    Rev 1.27   06 Oct 1997 18:37:34   ANDRY
 * no COBUX
 *
 *    Rev 1.26   06 Oct 1997 18:04:34   ANDRY
 * 16-bit access only for interleave 2 cards, COBUX
 *
 *    Rev 1.25   05 Oct 1997 12:02:32   danig
 * Support chip ID 0xEA
 *
 *    Rev 1.24   10 Sep 1997 16:14:08   danig
 * Got rid of generic names
 *
 *    Rev 1.23   08 Sep 1997 17:47:00   danig
 * fixed setAddress for big-endian
 *
 *    Rev 1.22   04 Sep 1997 13:59:44   danig
 * Debug messages
 *
 *    Rev 1.21   31 Aug 1997 15:18:04   danig
 * Registration routine return status
 *
 *    Rev 1.20   28 Aug 1997 17:47:08   danig
 * Buffer\remapped per socket
 *
 *    Rev 1.19   28 Jul 1997 15:10:36   danig
 * setPowerOnCallback & moved standard typedefs to flbase.h
 *
 *    Rev 1.18   24 Jul 1997 18:04:12   amirban
 * FAR to FAR0
 *
 *    Rev 1.17   21 Jul 1997 18:56:00   danig
 * nandBuffer static
 *
 *    Rev 1.16   20 Jul 1997 18:21:14   danig
 * Moved vendorID and chipID to Vars
 *
 *    Rev 1.15   20 Jul 1997 17:15:06   amirban
 * Added Toshiba 8MB
 *
 *    Rev 1.14   07 Jul 1997 15:22:26   amirban
 * Ver 2.0
 *
 *    Rev 1.13   02 Jul 1997 14:59:22   danig
 * More wait for socket to power up
 *
 *    Rev 1.12   01 Jul 1997 13:39:54   danig
 * Wait for socket to power up
 *
 *    Rev 1.11   22 Jun 1997 18:34:32   danig
 * Documentation
 *
 *    Rev 1.10   12 Jun 1997 17:22:24   amirban
 * Allow long extra read/writes
 *
 *    Rev 1.9   08 Jun 1997 19:18:06   danig
 * BIG_PAGE & FULL_PAGE moved to flash.h
 *
 *    Rev 1.8   08 Jun 1997 17:03:40   amirban
 * Fast Toshiba and power on callback
 *
 *    Rev 1.7   05 Jun 1997 12:31:38   amirban
 * Write corrections, and att reg changes
 *
 *    Rev 1.6   03 Jun 1997 18:45:14   danig
 * powerUp()
 *
 *    Rev 1.5   01 Jun 1997 13:42:52   amirban
 * Rewrite of read/write extra + major reduction
 *
 *    Rev 1.4   25 May 1997 16:41:38   amirban
 * Bg-endian, Toshiba fix & simplifications
 *
 *    Rev 1.3   18 May 1997 17:34:50   amirban
 * Use 'dataError'
 *
 *    Rev 1.2   23 Apr 1997 11:02:14   danig
 * Update to TFFS revision 1.12
 *
 *    Rev 1.1   15 Apr 1997 18:48:02   danig
 * Fixed FAR pointer issues.
 *
 *    Rev 1.0   08 Apr 1997 18:29:28   danig
 * Initial revision.
 */

/************************************************************************/
/*                                                                      */
/*		FAT-FTL Lite Software Development Kit			*/
/*		Copyright (C) M-Systems Ltd. 1995-1997			*/
/*									*/
/************************************************************************/


#include "flflash.h"
#include "reedsol.h"

#undef NFDC2048	/* Support NFDC2048 ASIC controller */

#define MAX_FLASH_DEVICES   16

#define PAGES_PER_BLOCK     32/*16*/          /* 16 pages per block on a single chip*/
#define SYNDROM_BYTES       6            /* Number of syndrom bytes: 5 + 1 parity*/

/* Flash IDs*/
#define KM29N16000_FLASH    0xec64
#define KM29N32000_FLASH    0xece5
#define KM29V64000_FLASH    0xece6
#define NM29N16_FLASH       0x8f64
#define NM29N32_FLASH	    0x8fe5
#define NM29N64_FLASH       0x8fe6
#define TC5816_FLASH        0x9864
#define TC5832_FLASH        0x98e5
#define TC5864_FLASH        0x98e6
#define K9f1208_FLASH         0xec76

/* Flash commands:*/
#define SERIAL_DATA_INPUT   0x80
#define READ_MODE           0x00
#define READ_MODE_2         0x50
#define RESET_FLASH         0xff
#define SETUP_WRITE         0x10
#define SETUP_ERASE         0x60
#define CONFIRM_ERASE       0xd0
#define READ_STATUS         0x70
#define READ_ID             0x90
#define SUSPEND_ERASE       0xb0
#define REGISTER_READ       0xe0

extern int nand_get_id(void);
extern int nand_wite_page(UINT32 block,UINT8 page,UINT8 *buf);
extern int nand_read_page(UINT32 block,UINT8 page,UINT8 *buf_ret);
extern int nand_erase_block(UINT32 block);

/* commands for moving flash pointer to areeas A,B or C of page*/
typedef enum  { AREA_A = READ_MODE, AREA_B = 0x1, AREA_C = READ_MODE_2 } PointerOp;

typedef union {  unsigned short w ; unsigned char b ;  } WordByte;


	/*觚