3 * Data Flash Atmel Description File
4 * Author : Hamid Ikdoumi (Atmel)
6 * SPDX-License-Identifier: GPL-2.0+
9 /* File Name : dataflash.h */
10 /* Object : Data Flash Atmel Description File */
13 /* 1.0 03/04/01 HI : Creation */
14 /* 1.2 20/10/02 FB : Adapatation Service and Lib v3 */
15 /*----------------------------------------------------------------------*/
23 /*number of protected area*/
24 #define NB_DATAFLASH_AREA 5
26 #ifdef CONFIG_SYS_NO_FLASH
28 /*-----------------------------------------------------------------------
29 * return codes from flash_write():
33 # define ERR_NOT_ERASED 2
34 # define ERR_PROTECTED 4
37 # define ERR_UNKNOWN_FLASH_VENDOR 32
38 # define ERR_UNKNOWN_FLASH_TYPE 64
39 # define ERR_PROG_ERROR 128
41 /*-----------------------------------------------------------------------
42 * Protection Flags for flash_protect():
44 # define FLAG_PROTECT_SET 0x01
45 # define FLAG_PROTECT_CLEAR 0x02
46 # define FLAG_PROTECT_INVALID 0x03
48 /*-----------------------------------------------------------------------
49 * Set Environment according to label:
51 # define FLAG_SETENV 0x80
52 #endif /* CONFIG_SYS_NO_FLASH */
54 /*define the area structure*/
58 unsigned char protected;
60 unsigned char label[20];
61 } dataflash_protect_t;
63 typedef unsigned int AT91S_DataFlashStatus;
65 /*----------------------------------------------------------------------*/
66 /* DataFlash Structures */
67 /*----------------------------------------------------------------------*/
69 /*---------------------------------------------*/
70 /* DataFlash Descriptor Structure Definition */
71 /*---------------------------------------------*/
72 typedef struct _AT91S_DataflashDesc {
73 unsigned char *tx_cmd_pt;
74 unsigned int tx_cmd_size;
75 unsigned char *rx_cmd_pt;
76 unsigned int rx_cmd_size;
77 unsigned char *tx_data_pt;
78 unsigned int tx_data_size;
79 unsigned char *rx_data_pt;
80 unsigned int rx_data_size;
81 volatile unsigned char state;
82 volatile unsigned char DataFlash_state;
83 unsigned char command[8];
84 } AT91S_DataflashDesc, *AT91PS_DataflashDesc;
86 /*---------------------------------------------*/
87 /* DataFlash device definition structure */
88 /*---------------------------------------------*/
89 typedef struct _AT91S_Dataflash {
90 int pages_number; /* dataflash page number */
91 int pages_size; /* dataflash page size */
92 int page_offset; /* page offset in command */
93 int byte_mask; /* byte mask in command */
95 dataflash_protect_t area_list[NB_DATAFLASH_AREA]; /* area protection status */
96 } AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
98 /*---------------------------------------------*/
99 /* DataFlash Structure Definition */
100 /*---------------------------------------------*/
101 typedef struct _AT91S_DataFlash {
102 AT91PS_DataflashDesc pDataFlashDesc; /* dataflash descriptor */
103 AT91PS_DataflashFeatures pDevice; /* Pointer on a dataflash features array */
104 } AT91S_DataFlash, *AT91PS_DataFlash;
107 typedef struct _AT91S_DATAFLASH_INFO {
109 AT91S_DataflashDesc Desc;
110 AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
111 unsigned long logical_address;
112 unsigned long end_address;
113 unsigned int id; /* device id */
114 } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
116 struct dataflash_addr {
120 /*-------------------------------------------------------------------------------------------------*/
121 #define AT45DB161 0x2c
122 #define AT45DB021 0x14
123 #define AT45DB081 0x24
124 #define AT45DB321 0x34
125 #define AT45DB642 0x3c
126 #define AT45DB128 0x10
127 #define PAGES_PER_BLOCK 8
129 #define AT91C_DATAFLASH_TIMEOUT 10000 /* For AT91F_DataFlashWaitReady */
131 /* DataFlash return value */
132 #define DATAFLASH_BUSY 0x00
133 #define DATAFLASH_OK 0x01
134 #define DATAFLASH_ERROR 0x02
135 #define DATAFLASH_MEMORY_OVERFLOW 0x03
136 #define DATAFLASH_BAD_COMMAND 0x04
137 #define DATAFLASH_BAD_ADDRESS 0x05
145 /* DataFlash Driver State */
146 #define GET_STATUS 0x0F
148 /*-------------------------------------------------------------------------------------------------*/
149 /* Command Definition */
150 /*-------------------------------------------------------------------------------------------------*/
153 #define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */
154 #define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */
155 #define DB_PAGE_READ 0xD2 /* Main memory page read */
156 #define DB_BUF1_READ 0xD4 /* Buffer 1 read */
157 #define DB_BUF2_READ 0xD6 /* Buffer 2 read */
158 #define DB_STATUS 0xD7 /* Status Register */
160 /* PROGRAM and ERASE COMMANDS */
161 #define DB_BUF1_WRITE 0x84 /* Buffer 1 write */
162 #define DB_BUF2_WRITE 0x87 /* Buffer 2 write */
163 #define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */
164 #define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */
165 #define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */
166 #define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */
167 #define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */
168 #define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */
169 #define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */
170 #define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */
171 #define DB_PAGE_ERASE 0x81 /* Page Erase */
172 #define DB_BLOCK_ERASE 0x50 /* Block Erase */
173 #define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */
174 #define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */
175 #define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */
176 #define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */
178 /* ADDITIONAL COMMANDS */
179 #define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */
180 #define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */
181 #define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */
182 #define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */
183 #define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */
184 #define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */
186 /*-------------------------------------------------------------------------------------------------*/
188 extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size);
189 extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr);
190 extern int addr2ram(ulong addr);
191 extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
192 extern int addr_dataflash (unsigned long addr);
193 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
194 extern int write_dataflash(unsigned long addr_dest, unsigned long addr_src,
196 extern int AT91F_DataflashInit(void);
198 extern void dataflash_print_info (void);
199 extern void dataflash_perror (int err);
200 extern void AT91F_DataflashSetEnv (void);
202 extern struct dataflash_addr cs[CONFIG_SYS_MAX_DATAFLASH_BANKS];
203 extern dataflash_protect_t area_list[NB_DATAFLASH_AREA];
204 extern AT91S_DATAFLASH_INFO dataflash_info[];