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Diffstat (limited to 'include/dataflash.h')
| -rw-r--r-- | include/dataflash.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/include/dataflash.h b/include/dataflash.h new file mode 100644 index 0000000..cc4badf --- /dev/null +++ b/include/dataflash.h @@ -0,0 +1,176 @@ +/* + * (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" + + +typedef struct { + unsigned long base; /* logical base address for a bank */ + unsigned long size; /* total bank size */ + unsigned long page_count; + unsigned long page_size; + unsigned long id; /* device id */ + unsigned char protect[CFG_MAX_DATAFLASH_PAGES]; /* page protection status */ +} dataflash_info_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; +} 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 int id; /* device id */ + unsigned char protect[CFG_MAX_DATAFLASH_PAGES]; /* page protection status */ +} AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO; + + +/*-------------------------------------------------------------------------------------------------*/ + +#define AT45DB161 0x2c +#define AT45DB321 0x34 +#define AT45DB642 0x3c + +#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 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); + +#endif |