mxc_nb_nfc.h

i.mx31 3DS平台Nandboot引导程序源码

/*
 *  misc/source/bootloader/nandboot/mxc_nb_uart.h
 *
 *  Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*!
 * @file ipl/mxc_nb_nfc.h
 * 
 * @brief This file contains the NAND Flash Controller register information. 
 *
 * 
 * @ingroup NANDboot
 */
 
#ifndef MXC_NB_NFC_H
#define MXC_NB_NFC_H

#ifdef MX21
#include "mxc_setup_mx21.h"
#endif
/*!
 * Base address for NFC 
 */
#ifdef MX21
#define NFC_BASE  0xdf003000
#else
#define NFC_BASE 0xB8000000
#endif

/*!
 * RAM address where SPL code will be copied 
 */
#ifdef MX21
#define SPL_DEST_ADDR (U16 *)0xc1000000
#else
#define SPL_DEST_ADDR (U16 *)0x80005000
#endif



/*!
 * @name Addresses for NFC registers
 */

/*! @{ */

/*!
 * NFC buffer size register
 */
#define NFC_BUF_SIZE            (*((volatile U16 *)(NFC_BASE+0xE00)))

/*!
 * NFC RAM buffer address register
 */
#define NFC_BUFFER_ADDR         (*((volatile U16 *)(NFC_BASE+0xE04)))

/*!
 * NFC flash address register
 */
#define NFC_FLASH_ADDR          (*((volatile U16 *)(NFC_BASE+0xE06)))

/*!
 * NFC flash command register
 */
#define NFC_FLASH_CMD           (*((volatile U16 *)(NFC_BASE+0xE08)))

/*!
 * NFC configuration register 
 */
#define NFC_CONFIG              (*((volatile U16 *)(NFC_BASE+0xE0A)))

/*!
 * NFC status register
 */
#define NFC_STATUS_RESULT       (*((volatile U16 *)(NFC_BASE+0xE0C)))

/*!
 * NFC spare area result register 
 */
#define MFC_RSLTSPARE_AREA      (*((volatile U16 *)(NFC_BASE+0xE10)))

/*!
 * NFC write protect register 
 */
#define NFC_WRPROT              (*((volatile U16 *)(NFC_BASE+0xE12)))

/*!
 * NFC start block address register for unlocking buffer
 */
#define NFC_UNLOCKSTART_BLKADDR (*((volatile U16 *)(NFC_BASE+0xE14)))

/*!
 * NFC end block address register for unlocking buffer
 */
#define NFC_UNLOCKEND_BLKADDR   (*((volatile U16 *)(NFC_BASE+0xE16)))

/*!
 * NFC write protect status register 
 */
#define NFC_NF_WRPRST           (*((volatile U16 *)(NFC_BASE+0xE18)))

/*!
 * NFC configuration register 1 
 */
#define NFC_CONFIG1             (*((volatile U16 *)(NFC_BASE+0xE1A)))

/*!
 * NFC configuration register 2 
 */
#define NFC_CONFIG2             (*((volatile U16 *)(NFC_BASE+0xE1C)))

/*! @} */

/*!
 * @name NFC RAM buffer main area addresses 
 */
/*! @{ */
/*!
 * NFC RAM buffer main area 0 address 
 */
#define MAIN_AREA0              (volatile U16 *)(NFC_BASE+0x000)

/*!
 * NFC RAM buffer main area 1 address 
 */
#define MAIN_AREA1              (volatile U16 *)(NFC_BASE+0x200)

/*!
 * NFC RAM buffer main area 2 address 
 */
#define MAIN_AREA2              (volatile U16 *)(NFC_BASE+0x400)

/*!
 * NFC RAM buffer main area 3 address 
 */
#define MAIN_AREA3              (volatile U16 *)(NFC_BASE+0x600)

/*! @} */

/*!
 * @name NFC Spare buffer area addresses
 */
/*! @{ */

/*!
 * NFC Spare buffer area 0 address
 */
#define SPARE_AREA0             (volatile U16 *)(NFC_BASE+0x800)

/*!
 * NFC Spare buffer area 1 address
 */
#define SPARE_AREA1             (volatile U16 *)(NFC_BASE+0x810)

/*!
 * NFC Spare buffer area 2 address
 */
#define SPARE_AREA2             (volatile U16 *)(NFC_BASE+0x820)

/*!
 * NFC Spare buffer area 3 address
 */
#define SPARE_AREA3             (volatile U16 *)(NFC_BASE+0x830)
/*! @} */

/*!
 * This defines the 16 bit NAND Flash
 */
#define NAND_WIDTH_16      0

/*!
 * This defines the NAND Flash page size in bytes
 */
#define NAND_PAGE_SIZE      2048

/*!
 * @name NFC CONFIG2 register values
 */
/*! @{ */
/*!
 * Set INT to 0, FCMD to 1, rest to 0 in NFC_CONFIG2 Register for Command
 * operation
 */
#define NFC_CMD            0x1

/*!
 * Set INT to 0, FADD to 1, rest to 0 in NFC_CONFIG2 Register for Address
 * operation
 */
#define NFC_ADDR           0x2

/*!
 * Set INT to 0, FDI to 1, rest to 0 in NFC_CONFIG2 Register for Input
 * operation
 */
#define NFC_INPUT          0x4

/*!
 * Set INT to 0, FDO to 001, rest to 0 in NFC_CONFIG2 Register for Data Output
 * operation
 */
#define NFC_OUTPUT         0x8

/*!
 * Set INT to 0, FD0 to 010, rest to 0 in NFC_CONFIG2 Register for Read ID
 * operation
 */
#define NFC_ID             0x10

/*!
 * Set INT to 0, FDO to 100, rest to 0 in NFC_CONFIG2 Register for Read Status
 * operation
 */
#define NFC_STATUS         0x20

/*!
 * Set INT to 1, rest to 0 in NFC_CONFIG2 Register for Read Status
 * operation
 */
#define NFC_INT            0x8000
/*! @} */

/* Other configuration register values */
#define NFC_SP_EN           (1 << 2)
#define NFC_ECC_EN          (1 << 3)
#define NFC_INT_MSK         (1 << 4)
#define NFC_BIG             (1 << 5)
#define NFC_RST             (1 << 6)
#define NFC_CE              (1 << 7)

/*
 * Define delays in msec for NAND device operations
 */
#define TWC_US_DELAY    25      /* tWC = 50 ns, total = 528*50 ns */
#define TRC_US_DELAY    25
#define TRST_US_DELAY   500
#define TPROG_US_DELAY  200
#define TBERS_US_DELAY_1 1500
#define TBERS_US_DELAY_2 1500
#define TR_US_DELAY     20

/*
 * Standard NAND flash commands, from nand.h
 */
#define NAND_CMD_READ0          0
#define NAND_CMD_READ1          1
#define NAND_CMD_PAGEPROG       0x10
#define NAND_CMD_READOOB        0x50
#define NAND_CMD_ERASE1         0x60
#define NAND_CMD_STATUS         0x70
#define NAND_CMD_STATUS_MULTI   0x71
#define NAND_CMD_SEQIN          0x80
#define NAND_CMD_READID         0x90
#define NAND_CMD_ERASE2         0xd0
#define NAND_CMD_RESET          0xff

/* Extended commands for large page devices */
#define NAND_CMD_READSTART      0x30
#define NAND_CMD_CACHEDPROG     0x15

/* Status bits */
#define NAND_STATUS_FAIL        0x01
#define NAND_STATUS_FAIL_N1     0x02
#define NAND_STATUS_TRUE_READY  0x20
#define NAND_STATUS_READY       0x40
#define NAND_STATUS_WP          0x80

#endif /* MXC_NB_NFC_H */