/* * (C) Copyright 2003 * Data Flash Atmel Description File * Author : Hamid Ikdoumi (Atmel) * * See file CREDITS for list of people who contributed to this * project. * * 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 Name : dataflash.h */ /* Object : Data Flash Atmel Description File */ /* Translator : */ /* */ /* 1.0 03/04/01 HI : Creation */ /* 1.2 20/10/02 FB : Adapatation Service and Lib v3 */ /*----------------------------------------------------------------------*/ #ifndef _DataFlash_h #define _DataFlash_h #include <asm/arch/hardware.h> #include "config.h" /*number of protected area*/ #ifdef CONFIG_NEW_PARTITION # define NB_DATAFLASH_AREA 6 #else # define NB_DATAFLASH_AREA 4 #endif #ifdef CFG_NO_FLASH /*----------------------------------------------------------------------- * return codes from flash_write(): */ # define ERR_OK 0 # define ERR_TIMOUT 1 # define ERR_NOT_ERASED 2 # define ERR_PROTECTED 4 # define ERR_INVAL 8 # define ERR_ALIGN 16 # define ERR_UNKNOWN_FLASH_VENDOR 32 # define ERR_UNKNOWN_FLASH_TYPE 64 # define ERR_PROG_ERROR 128 /*----------------------------------------------------------------------- * Protection Flags for flash_protect(): */ # define FLAG_PROTECT_SET 0x01 # define FLAG_PROTECT_CLEAR 0x02 # define FLAG_PROTECT_INVALID 0x03 /*----------------------------------------------------------------------- * Set Environment according to label: */ # define FLAG_SETENV 0x80 #endif /* CFG_NO_FLASH */ /*define the area structure*/ typedef struct { unsigned long start; unsigned long end; unsigned char protected; unsigned char setenv; unsigned char label[20]; } dataflash_protect_t; typedef unsigned int AT91S_DataFlashStatus; /*----------------------------------------------------------------------*/ /* DataFlash Structures */ /*----------------------------------------------------------------------*/ /*---------------------------------------------*/ /* DataFlash Descriptor Structure Definition */ /*---------------------------------------------*/ typedef struct _AT91S_DataflashDesc { unsigned char *tx_cmd_pt; unsigned int tx_cmd_size; unsigned char *rx_cmd_pt; unsigned int rx_cmd_size; unsigned char *tx_data_pt; unsigned int tx_data_size; unsigned char *rx_data_pt; unsigned int rx_data_size; volatile unsigned char state; volatile unsigned char DataFlash_state; unsigned char command[8]; } AT91S_DataflashDesc, *AT91PS_DataflashDesc; /*---------------------------------------------*/ /* DataFlash device definition structure */ /*---------------------------------------------*/ typedef struct _AT91S_Dataflash { int pages_number; /* dataflash page number */ int pages_size; /* dataflash page size */ int page_offset; /* page offset in command */ int byte_mask; /* byte mask in command */ int cs; dataflash_protect_t area_list[NB_DATAFLASH_AREA]; /* area protection status */ } AT91S_DataflashFeatures, *AT91PS_DataflashFeatures; /*---------------------------------------------*/ /* DataFlash Structure Definition */ /*---------------------------------------------*/ typedef struct _AT91S_DataFlash { AT91PS_DataflashDesc pDataFlashDesc; /* dataflash descriptor */ AT91PS_DataflashFeatures pDevice; /* Pointer on a dataflash features array */ } AT91S_DataFlash, *AT91PS_DataFlash; typedef struct _AT91S_DATAFLASH_INFO { AT91S_DataflashDesc Desc; AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */ unsigned long logical_address; unsigned long end_address; unsigned int id; /* device id */ } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO; /*-------------------------------------------------------------------------------------------------*/ #define AT45DB161 0x2c #define AT45DB321 0x34 #define AT45DB642 0x3c #define AT45DB128 0x10 #define PAGES_PER_BLOCK 8 #define AT91C_DATAFLASH_TIMEOUT 10000 /* For AT91F_DataFlashWaitReady */ /* DataFlash return value */ #define DATAFLASH_BUSY 0x00 #define DATAFLASH_OK 0x01 #define DATAFLASH_ERROR 0x02 #define DATAFLASH_MEMORY_OVERFLOW 0x03 #define DATAFLASH_BAD_COMMAND 0x04 #define DATAFLASH_BAD_ADDRESS 0x05 /* Driver State */ #define IDLE 0x0 #define BUSY 0x1 #define ERROR 0x2 /* DataFlash Driver State */ #define GET_STATUS 0x0F /*-------------------------------------------------------------------------------------------------*/ /* Command Definition */ /*-------------------------------------------------------------------------------------------------*/ /* READ COMMANDS */ #define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */ #define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */ #define DB_PAGE_READ 0xD2 /* Main memory page read */ #define DB_BUF1_READ 0xD4 /* Buffer 1 read */ #define DB_BUF2_READ 0xD6 /* Buffer 2 read */ #define DB_STATUS 0xD7 /* Status Register */ /* PROGRAM and ERASE COMMANDS */ #define DB_BUF1_WRITE 0x84 /* Buffer 1 write */ #define DB_BUF2_WRITE 0x87 /* Buffer 2 write */ #define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */ #define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */ #define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */ #define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */ #define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */ #define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */ #define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */ #define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */ #define DB_PAGE_ERASE 0x81 /* Page Erase */ #define DB_BLOCK_ERASE 0x50 /* Block Erase */ #define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */ #define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */ #define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */ #define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */ /* ADDITIONAL COMMANDS */ #define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */ #define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */ #define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */ #define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */ #define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */ #define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */ /*-------------------------------------------------------------------------------------------------*/ extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size); extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr); extern int addr2ram(ulong addr); extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr); extern int addr_dataflash (unsigned long addr); extern int read_dataflash (unsigned long addr, unsigned long size, char *result); extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size); extern void dataflash_print_info (void); extern void dataflash_perror (int err); #ifdef CONFIG_NEW_DF_PARTITION extern int AT91F_DataflashSetEnv (void); #endif #endif #endif