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 5
45 /*-----------------------------------------------------------------------
46 * return codes from flash_write():
50 # define ERR_NOT_ERASED 2
51 # define ERR_PROTECTED 4
54 # define ERR_UNKNOWN_FLASH_VENDOR 32
55 # define ERR_UNKNOWN_FLASH_TYPE 64
56 # define ERR_PROG_ERROR 128
58 /*-----------------------------------------------------------------------
59 * Protection Flags for flash_protect():
61 # define FLAG_PROTECT_SET 0x01
62 # define FLAG_PROTECT_CLEAR 0x02
63 # define FLAG_PROTECT_INVALID 0x03
65 /*-----------------------------------------------------------------------
66 * Set Environment according to label:
68 # define FLAG_SETENV 0x80
69 #endif /* CFG_NO_FLASH */
71 /*define the area structure*/
75 unsigned char protected;
77 unsigned char label
[20];
78 } dataflash_protect_t
;
80 typedef unsigned int AT91S_DataFlashStatus
;
82 /*----------------------------------------------------------------------*/
83 /* DataFlash Structures */
84 /*----------------------------------------------------------------------*/
86 /*---------------------------------------------*/
87 /* DataFlash Descriptor Structure Definition */
88 /*---------------------------------------------*/
89 typedef struct _AT91S_DataflashDesc
{
90 unsigned char *tx_cmd_pt
;
91 unsigned int tx_cmd_size
;
92 unsigned char *rx_cmd_pt
;
93 unsigned int rx_cmd_size
;
94 unsigned char *tx_data_pt
;
95 unsigned int tx_data_size
;
96 unsigned char *rx_data_pt
;
97 unsigned int rx_data_size
;
98 volatile unsigned char state
;
99 volatile unsigned char DataFlash_state
;
100 unsigned char command
[8];
101 } AT91S_DataflashDesc
, *AT91PS_DataflashDesc
;
103 /*---------------------------------------------*/
104 /* DataFlash device definition structure */
105 /*---------------------------------------------*/
106 typedef struct _AT91S_Dataflash
{
107 int pages_number
; /* dataflash page number */
108 int pages_size
; /* dataflash page size */
109 int page_offset
; /* page offset in command */
110 int byte_mask
; /* byte mask in command */
112 dataflash_protect_t area_list
[NB_DATAFLASH_AREA
]; /* area protection status */
113 } AT91S_DataflashFeatures
, *AT91PS_DataflashFeatures
;
115 /*---------------------------------------------*/
116 /* DataFlash Structure Definition */
117 /*---------------------------------------------*/
118 typedef struct _AT91S_DataFlash
{
119 AT91PS_DataflashDesc pDataFlashDesc
; /* dataflash descriptor */
120 AT91PS_DataflashFeatures pDevice
; /* Pointer on a dataflash features array */
121 } AT91S_DataFlash
, *AT91PS_DataFlash
;
124 typedef struct _AT91S_DATAFLASH_INFO
{
126 AT91S_DataflashDesc Desc
;
127 AT91S_DataflashFeatures Device
; /* Pointer on a dataflash features array */
128 unsigned long logical_address
;
129 unsigned long end_address
;
130 unsigned int id
; /* device id */
131 } AT91S_DATAFLASH_INFO
, *AT91PS_DATAFLASH_INFO
;
134 /*-------------------------------------------------------------------------------------------------*/
136 #define AT45DB161 0x2c
137 #define AT45DB321 0x34
138 #define AT45DB642 0x3c
139 #define AT45DB128 0x10
140 #define PAGES_PER_BLOCK 8
142 #define AT91C_DATAFLASH_TIMEOUT 10000 /* For AT91F_DataFlashWaitReady */
144 /* DataFlash return value */
145 #define DATAFLASH_BUSY 0x00
146 #define DATAFLASH_OK 0x01
147 #define DATAFLASH_ERROR 0x02
148 #define DATAFLASH_MEMORY_OVERFLOW 0x03
149 #define DATAFLASH_BAD_COMMAND 0x04
150 #define DATAFLASH_BAD_ADDRESS 0x05
158 /* DataFlash Driver State */
159 #define GET_STATUS 0x0F
161 /*-------------------------------------------------------------------------------------------------*/
162 /* Command Definition */
163 /*-------------------------------------------------------------------------------------------------*/
166 #define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */
167 #define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */
168 #define DB_PAGE_READ 0xD2 /* Main memory page read */
169 #define DB_BUF1_READ 0xD4 /* Buffer 1 read */
170 #define DB_BUF2_READ 0xD6 /* Buffer 2 read */
171 #define DB_STATUS 0xD7 /* Status Register */
173 /* PROGRAM and ERASE COMMANDS */
174 #define DB_BUF1_WRITE 0x84 /* Buffer 1 write */
175 #define DB_BUF2_WRITE 0x87 /* Buffer 2 write */
176 #define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */
177 #define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */
178 #define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */
179 #define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */
180 #define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */
181 #define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */
182 #define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */
183 #define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */
184 #define DB_PAGE_ERASE 0x81 /* Page Erase */
185 #define DB_BLOCK_ERASE 0x50 /* Block Erase */
186 #define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */
187 #define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */
188 #define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */
189 #define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */
191 /* ADDITIONAL COMMANDS */
192 #define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */
193 #define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */
194 #define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */
195 #define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */
196 #define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */
197 #define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */
199 /*-------------------------------------------------------------------------------------------------*/
201 extern int size_dataflash (AT91PS_DataFlash pdataFlash
, unsigned long addr
, unsigned long size
);
202 extern int prot_dataflash (AT91PS_DataFlash pdataFlash
, unsigned long addr
);
203 extern int addr2ram(ulong addr
);
204 extern int dataflash_real_protect (int flag
, unsigned long start_addr
, unsigned long end_addr
);
205 extern int addr_dataflash (unsigned long addr
);
206 extern int read_dataflash (unsigned long addr
, unsigned long size
, char *result
);
207 extern int write_dataflash (unsigned long addr
, unsigned long dest
, unsigned long size
);
208 extern void dataflash_print_info (void);
209 extern void dataflash_perror (int err
);
211 #ifdef CONFIG_NEW_DF_PARTITION
212 extern int AT91F_DataflashSetEnv (void); #endif