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33#ifndef _DataFlash_h
34#define _DataFlash_h
35
36
37#include <asm/arch/hardware.h>
38#include "config.h"
39
40
41#define NB_DATAFLASH_AREA 5
42
43#ifdef CONFIG_SYS_NO_FLASH
44
45
46
47
48# define ERR_OK 0
49# define ERR_TIMOUT 1
50# define ERR_NOT_ERASED 2
51# define ERR_PROTECTED 4
52# define ERR_INVAL 8
53# define ERR_ALIGN 16
54# define ERR_UNKNOWN_FLASH_VENDOR 32
55# define ERR_UNKNOWN_FLASH_TYPE 64
56# define ERR_PROG_ERROR 128
57
58
59
60
61# define FLAG_PROTECT_SET 0x01
62# define FLAG_PROTECT_CLEAR 0x02
63# define FLAG_PROTECT_INVALID 0x03
64
65
66
67
68# define FLAG_SETENV 0x80
69#endif
70
71
72typedef struct {
73 unsigned long start;
74 unsigned long end;
75 unsigned char protected;
76 unsigned char setenv;
77 unsigned char label[20];
78} dataflash_protect_t;
79
80typedef unsigned int AT91S_DataFlashStatus;
81
82
83
84
85
86
87
88
89typedef 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;
102
103
104
105
106typedef struct _AT91S_Dataflash {
107 int pages_number;
108 int pages_size;
109 int page_offset;
110 int byte_mask;
111 int cs;
112 dataflash_protect_t area_list[NB_DATAFLASH_AREA];
113} AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
114
115
116
117
118typedef struct _AT91S_DataFlash {
119 AT91PS_DataflashDesc pDataFlashDesc;
120 AT91PS_DataflashFeatures pDevice;
121} AT91S_DataFlash, *AT91PS_DataFlash;
122
123
124typedef struct _AT91S_DATAFLASH_INFO {
125
126 AT91S_DataflashDesc Desc;
127 AT91S_DataflashFeatures Device;
128 unsigned long logical_address;
129 unsigned long end_address;
130 unsigned int id;
131} AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
132
133struct dataflash_addr {
134 unsigned long addr;
135 int cs;
136};
137
138#define AT45DB161 0x2c
139#define AT45DB021 0x14
140#define AT45DB081 0x24
141#define AT45DB321 0x34
142#define AT45DB642 0x3c
143#define AT45DB128 0x10
144#define PAGES_PER_BLOCK 8
145
146#define AT91C_DATAFLASH_TIMEOUT 10000
147
148
149#define DATAFLASH_BUSY 0x00
150#define DATAFLASH_OK 0x01
151#define DATAFLASH_ERROR 0x02
152#define DATAFLASH_MEMORY_OVERFLOW 0x03
153#define DATAFLASH_BAD_COMMAND 0x04
154#define DATAFLASH_BAD_ADDRESS 0x05
155
156
157
158#define IDLE 0x0
159#define BUSY 0x1
160#define ERROR 0x2
161
162
163#define GET_STATUS 0x0F
164
165
166
167
168
169
170#define DB_CONTINUOUS_ARRAY_READ 0xE8
171#define DB_BURST_ARRAY_READ 0xE8
172#define DB_PAGE_READ 0xD2
173#define DB_BUF1_READ 0xD4
174#define DB_BUF2_READ 0xD6
175#define DB_STATUS 0xD7
176
177
178#define DB_BUF1_WRITE 0x84
179#define DB_BUF2_WRITE 0x87
180#define DB_BUF1_PAGE_ERASE_PGM 0x83
181#define DB_BUF1_PAGE_ERASE_FASTPGM 0x93
182#define DB_BUF2_PAGE_ERASE_PGM 0x86
183#define DB_BUF2_PAGE_ERASE_FASTPGM 0x96
184#define DB_BUF1_PAGE_PGM 0x88
185#define DB_BUF1_PAGE_FASTPGM 0x98
186#define DB_BUF2_PAGE_PGM 0x89
187#define DB_BUF2_PAGE_FASTPGM 0x99
188#define DB_PAGE_ERASE 0x81
189#define DB_BLOCK_ERASE 0x50
190#define DB_PAGE_PGM_BUF1 0x82
191#define DB_PAGE_FASTPGM_BUF1 0x92
192#define DB_PAGE_PGM_BUF2 0x85
193#define DB_PAGE_FastPGM_BUF2 0x95
194
195
196#define DB_PAGE_2_BUF1_TRF 0x53
197#define DB_PAGE_2_BUF2_TRF 0x55
198#define DB_PAGE_2_BUF1_CMP 0x60
199#define DB_PAGE_2_BUF2_CMP 0x61
200#define DB_AUTO_PAGE_PGM_BUF1 0x58
201#define DB_AUTO_PAGE_PGM_BUF2 0x59
202
203
204
205extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size);
206extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr);
207extern int addr2ram(ulong addr);
208extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
209extern int addr_dataflash (unsigned long addr);
210extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
211extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size);
212extern void dataflash_print_info (void);
213extern void dataflash_perror (int err);
214extern void AT91F_DataflashSetEnv (void);
215
216extern struct dataflash_addr cs[CONFIG_SYS_MAX_DATAFLASH_BANKS];
217extern dataflash_protect_t area_list[NB_DATAFLASH_AREA];
218extern AT91S_DATAFLASH_INFO dataflash_info[];
219#endif
220