| /* |
| * (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 "config.h" |
| |
| /*number of protected area*/ |
| #define NB_DATAFLASH_AREA 5 |
| |
| #ifdef CONFIG_SYS_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 /* CONFIG_SYS_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; |
| |
| struct dataflash_addr { |
| unsigned long addr; |
| int cs; |
| }; |
| /*-------------------------------------------------------------------------------------------------*/ |
| #define AT45DB161 0x2c |
| #define AT45DB021 0x14 |
| #define AT45DB081 0x24 |
| #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_dest, unsigned long addr_src, |
| unsigned long size); |
| extern int AT91F_DataflashInit(void); |
| |
| extern void dataflash_print_info (void); |
| extern void dataflash_perror (int err); |
| extern void AT91F_DataflashSetEnv (void); |
| |
| extern struct dataflash_addr cs[CONFIG_SYS_MAX_DATAFLASH_BANKS]; |
| extern dataflash_protect_t area_list[NB_DATAFLASH_AREA]; |
| extern AT91S_DATAFLASH_INFO dataflash_info[]; |
| #endif |
