3 * Data Flash Atmel Description File
4 * Author : Hamid Ikdoumi (Atmel)
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 /* File Name : dataflash.h */
26 /* Object : Data Flash Atmel Description File */
29 /* 1.0 03/04/01 HI : Creation */
30 /* 1.2 20/10/02 FB : Adapatation Service and Lib v3 */
31 /*----------------------------------------------------------------------*/
37 #include <asm/arch/hardware.h>
40 /*number of protected area*/
41 #define NB_DATAFLASH_AREA 4
43 /*define the area structure*/
47 unsigned char protected;
48 } dataflash_protect_t;
50 typedef unsigned int AT91S_DataFlashStatus;
52 /*----------------------------------------------------------------------*/
53 /* DataFlash Structures */
54 /*----------------------------------------------------------------------*/
56 /*---------------------------------------------*/
57 /* DataFlash Descriptor Structure Definition */
58 /*---------------------------------------------*/
59 typedef struct _AT91S_DataflashDesc {
60 unsigned char *tx_cmd_pt;
61 unsigned int tx_cmd_size;
62 unsigned char *rx_cmd_pt;
63 unsigned int rx_cmd_size;
64 unsigned char *tx_data_pt;
65 unsigned int tx_data_size;
66 unsigned char *rx_data_pt;
67 unsigned int rx_data_size;
68 volatile unsigned char state;
69 volatile unsigned char DataFlash_state;
70 unsigned char command[8];
71 } AT91S_DataflashDesc, *AT91PS_DataflashDesc;
73 /*---------------------------------------------*/
74 /* DataFlash device definition structure */
75 /*---------------------------------------------*/
76 typedef struct _AT91S_Dataflash {
77 int pages_number; /* dataflash page number */
78 int pages_size; /* dataflash page size */
79 int page_offset; /* page offset in command */
80 int byte_mask; /* byte mask in command */
82 dataflash_protect_t area_list[NB_DATAFLASH_AREA]; /* area protection status */
83 } AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
85 /*---------------------------------------------*/
86 /* DataFlash Structure Definition */
87 /*---------------------------------------------*/
88 typedef struct _AT91S_DataFlash {
89 AT91PS_DataflashDesc pDataFlashDesc; /* dataflash descriptor */
90 AT91PS_DataflashFeatures pDevice; /* Pointer on a dataflash features array */
91 } AT91S_DataFlash, *AT91PS_DataFlash;
94 typedef struct _AT91S_DATAFLASH_INFO {
96 AT91S_DataflashDesc Desc;
97 AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
98 unsigned long logical_address;
99 unsigned int id; /* device id */
100 } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
103 /*-------------------------------------------------------------------------------------------------*/
105 #define AT45DB161 0x2c
106 #define AT45DB321 0x34
107 #define AT45DB642 0x3c
108 #define AT45DB128 0x10
110 #define AT91C_DATAFLASH_TIMEOUT 10000 /* For AT91F_DataFlashWaitReady */
112 /* DataFlash return value */
113 #define DATAFLASH_BUSY 0x00
114 #define DATAFLASH_OK 0x01
115 #define DATAFLASH_ERROR 0x02
116 #define DATAFLASH_MEMORY_OVERFLOW 0x03
117 #define DATAFLASH_BAD_COMMAND 0x04
118 #define DATAFLASH_BAD_ADDRESS 0x05
126 /* DataFlash Driver State */
127 #define GET_STATUS 0x0F
129 /*-------------------------------------------------------------------------------------------------*/
130 /* Command Definition */
131 /*-------------------------------------------------------------------------------------------------*/
134 #define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */
135 #define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */
136 #define DB_PAGE_READ 0xD2 /* Main memory page read */
137 #define DB_BUF1_READ 0xD4 /* Buffer 1 read */
138 #define DB_BUF2_READ 0xD6 /* Buffer 2 read */
139 #define DB_STATUS 0xD7 /* Status Register */
141 /* PROGRAM and ERASE COMMANDS */
142 #define DB_BUF1_WRITE 0x84 /* Buffer 1 write */
143 #define DB_BUF2_WRITE 0x87 /* Buffer 2 write */
144 #define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */
145 #define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */
146 #define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */
147 #define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */
148 #define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */
149 #define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */
150 #define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */
151 #define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */
152 #define DB_PAGE_ERASE 0x81 /* Page Erase */
153 #define DB_BLOCK_ERASE 0x50 /* Block Erase */
154 #define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */
155 #define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */
156 #define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */
157 #define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */
159 /* ADDITIONAL COMMANDS */
160 #define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */
161 #define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */
162 #define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */
163 #define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */
164 #define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */
165 #define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */
167 /*-------------------------------------------------------------------------------------------------*/
169 extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size);
170 extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr);
171 extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
172 extern int addr_dataflash (unsigned long addr);
173 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
174 extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size);
175 extern void dataflash_print_info (void);
176 extern void dataflash_perror (int err);