mtd: vf610_nfc: remove read on SEQIN
[oweals/u-boot.git] / drivers / mtd / dataflash.c
1 /*
2  * LowLevel function for ATMEL DataFlash support
3  * Author : Hamid Ikdoumi (Atmel)
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7 #include <common.h>
8 #include <config.h>
9 #include <asm/hardware.h>
10 #include <dataflash.h>
11
12 static AT91S_DataFlash DataFlashInst;
13
14 extern void AT91F_SpiInit (void);
15 extern int AT91F_DataflashProbe (int i, AT91PS_DataflashDesc pDesc);
16 extern int AT91F_DataFlashRead (AT91PS_DataFlash pDataFlash,
17                                 unsigned long addr,
18                                 unsigned long size, char *buffer);
19 extern int AT91F_DataFlashWrite( AT91PS_DataFlash pDataFlash,
20                                 unsigned char *src,
21                                 int dest,
22                                 int size );
23
24 int AT91F_DataflashInit (void)
25 {
26         int i, j;
27         int dfcode;
28         int part;
29         int found[CONFIG_SYS_MAX_DATAFLASH_BANKS];
30         unsigned char protected;
31
32         AT91F_SpiInit ();
33
34         for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) {
35                 found[i] = 0;
36                 dataflash_info[i].Desc.state = IDLE;
37                 dataflash_info[i].id = 0;
38                 dataflash_info[i].Device.pages_number = 0;
39                 dfcode = AT91F_DataflashProbe (cs[i].cs,
40                                 &dataflash_info[i].Desc);
41
42                 switch (dfcode) {
43                 case AT45DB021:
44                         dataflash_info[i].Device.pages_number = 1024;
45                         dataflash_info[i].Device.pages_size = 264;
46                         dataflash_info[i].Device.page_offset = 9;
47                         dataflash_info[i].Device.byte_mask = 0x300;
48                         dataflash_info[i].Device.cs = cs[i].cs;
49                         dataflash_info[i].Desc.DataFlash_state = IDLE;
50                         dataflash_info[i].logical_address = cs[i].addr;
51                         dataflash_info[i].id = dfcode;
52                         found[i] += dfcode;;
53                         break;
54
55                 case AT45DB081:
56                         dataflash_info[i].Device.pages_number = 4096;
57                         dataflash_info[i].Device.pages_size = 264;
58                         dataflash_info[i].Device.page_offset = 9;
59                         dataflash_info[i].Device.byte_mask = 0x300;
60                         dataflash_info[i].Device.cs = cs[i].cs;
61                         dataflash_info[i].Desc.DataFlash_state = IDLE;
62                         dataflash_info[i].logical_address = cs[i].addr;
63                         dataflash_info[i].id = dfcode;
64                         found[i] += dfcode;;
65                         break;
66
67                 case AT45DB161:
68                         dataflash_info[i].Device.pages_number = 4096;
69                         dataflash_info[i].Device.pages_size = 528;
70                         dataflash_info[i].Device.page_offset = 10;
71                         dataflash_info[i].Device.byte_mask = 0x300;
72                         dataflash_info[i].Device.cs = cs[i].cs;
73                         dataflash_info[i].Desc.DataFlash_state = IDLE;
74                         dataflash_info[i].logical_address = cs[i].addr;
75                         dataflash_info[i].id = dfcode;
76                         found[i] += dfcode;;
77                         break;
78
79                 case AT45DB321:
80                         dataflash_info[i].Device.pages_number = 8192;
81                         dataflash_info[i].Device.pages_size = 528;
82                         dataflash_info[i].Device.page_offset = 10;
83                         dataflash_info[i].Device.byte_mask = 0x300;
84                         dataflash_info[i].Device.cs = cs[i].cs;
85                         dataflash_info[i].Desc.DataFlash_state = IDLE;
86                         dataflash_info[i].logical_address = cs[i].addr;
87                         dataflash_info[i].id = dfcode;
88                         found[i] += dfcode;;
89                         break;
90
91                 case AT45DB642:
92                         dataflash_info[i].Device.pages_number = 8192;
93                         dataflash_info[i].Device.pages_size = 1056;
94                         dataflash_info[i].Device.page_offset = 11;
95                         dataflash_info[i].Device.byte_mask = 0x700;
96                         dataflash_info[i].Device.cs = cs[i].cs;
97                         dataflash_info[i].Desc.DataFlash_state = IDLE;
98                         dataflash_info[i].logical_address = cs[i].addr;
99                         dataflash_info[i].id = dfcode;
100                         found[i] += dfcode;;
101                         break;
102
103                 case AT45DB128:
104                         dataflash_info[i].Device.pages_number = 16384;
105                         dataflash_info[i].Device.pages_size = 1056;
106                         dataflash_info[i].Device.page_offset = 11;
107                         dataflash_info[i].Device.byte_mask = 0x700;
108                         dataflash_info[i].Device.cs = cs[i].cs;
109                         dataflash_info[i].Desc.DataFlash_state = IDLE;
110                         dataflash_info[i].logical_address = cs[i].addr;
111                         dataflash_info[i].id = dfcode;
112                         found[i] += dfcode;;
113                         break;
114
115                 default:
116                         dfcode = 0;
117                         break;
118                 }
119                 /* set the last area end to the dataflash size*/
120                 dataflash_info[i].end_address =
121                                 (dataflash_info[i].Device.pages_number *
122                                 dataflash_info[i].Device.pages_size) - 1;
123
124                 part = 0;
125                 /* set the area addresses */
126                 for(j = 0; j < NB_DATAFLASH_AREA; j++) {
127                         if(found[i]!=0) {
128                                 dataflash_info[i].Device.area_list[j].start =
129                                         area_list[part].start +
130                                         dataflash_info[i].logical_address;
131                                 if(area_list[part].end == 0xffffffff) {
132                                         dataflash_info[i].Device.area_list[j].end =
133                                                 dataflash_info[i].end_address +
134                                                 dataflash_info[i].logical_address;
135                                 } else {
136                                         dataflash_info[i].Device.area_list[j].end =
137                                                 area_list[part].end +
138                                                 dataflash_info[i].logical_address;
139                                 }
140                                 protected = area_list[part].protected;
141                                 /* Set the environment according to the label...*/
142                                 if(protected == FLAG_PROTECT_INVALID) {
143                                         dataflash_info[i].Device.area_list[j].protected =
144                                                 FLAG_PROTECT_INVALID;
145                                 } else {
146                                         dataflash_info[i].Device.area_list[j].protected =
147                                                 protected;
148                                 }
149                                 strcpy((char*)(dataflash_info[i].Device.area_list[j].label),
150                                                 (const char *)area_list[part].label);
151                         }
152                         part++;
153                 }
154         }
155         return found[0];
156 }
157
158 void AT91F_DataflashSetEnv (void)
159 {
160         int i, j;
161         int part;
162         unsigned char env;
163         unsigned char s[32];    /* Will fit a long int in hex */
164         unsigned long start;
165
166         for (i = 0, part= 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) {
167                 for(j = 0; j < NB_DATAFLASH_AREA; j++) {
168                         env = area_list[part].setenv;
169                         /* Set the environment according to the label...*/
170                         if((env & FLAG_SETENV) == FLAG_SETENV) {
171                                 start = dataflash_info[i].Device.area_list[j].start;
172                                 sprintf((char*) s,"%lX",start);
173                                 setenv((char*) area_list[part].label,(char*) s);
174                         }
175                         part++;
176                 }
177         }
178 }
179
180 void dataflash_print_info (void)
181 {
182         int i, j;
183
184         for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) {
185                 if (dataflash_info[i].id != 0) {
186                         printf("DataFlash:");
187                         switch (dataflash_info[i].id) {
188                         case AT45DB021:
189                                 printf("AT45DB021\n");
190                                 break;
191                         case AT45DB161:
192                                 printf("AT45DB161\n");
193                                 break;
194
195                         case AT45DB321:
196                                 printf("AT45DB321\n");
197                                 break;
198
199                         case AT45DB642:
200                                 printf("AT45DB642\n");
201                                 break;
202                         case AT45DB128:
203                                 printf("AT45DB128\n");
204                                 break;
205                         }
206
207                         printf("Nb pages: %6d\n"
208                                 "Page Size: %6d\n"
209                                 "Size=%8d bytes\n"
210                                 "Logical address: 0x%08X\n",
211                                 (unsigned int) dataflash_info[i].Device.pages_number,
212                                 (unsigned int) dataflash_info[i].Device.pages_size,
213                                 (unsigned int) dataflash_info[i].Device.pages_number *
214                                 dataflash_info[i].Device.pages_size,
215                                 (unsigned int) dataflash_info[i].logical_address);
216                         for (j = 0; j < NB_DATAFLASH_AREA; j++) {
217                                 switch(dataflash_info[i].Device.area_list[j].protected) {
218                                 case    FLAG_PROTECT_SET:
219                                 case    FLAG_PROTECT_CLEAR:
220                                         printf("Area %i:\t%08lX to %08lX %s", j,
221                                                 dataflash_info[i].Device.area_list[j].start,
222                                                 dataflash_info[i].Device.area_list[j].end,
223                                                 (dataflash_info[i].Device.area_list[j].protected==FLAG_PROTECT_SET) ? "(RO)" : "    ");
224                                                 printf(" %s\n", dataflash_info[i].Device.area_list[j].label);
225                                         break;
226                                 case    FLAG_PROTECT_INVALID:
227                                         break;
228                                 }
229                         }
230                 }
231         }
232 }
233
234 /*---------------------------------------------------------------------------*/
235 /* Function Name       : AT91F_DataflashSelect                               */
236 /* Object              : Select the correct device                           */
237 /*---------------------------------------------------------------------------*/
238 AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash,
239                                 unsigned long *addr)
240 {
241         char addr_valid = 0;
242         int i;
243
244         for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++)
245                 if ( dataflash_info[i].id
246                         && ((((int) *addr) & 0xFF000000) ==
247                         dataflash_info[i].logical_address)) {
248                         addr_valid = 1;
249                         break;
250                 }
251         if (!addr_valid) {
252                 pFlash = (AT91PS_DataFlash) 0;
253                 return pFlash;
254         }
255         pFlash->pDataFlashDesc = &(dataflash_info[i].Desc);
256         pFlash->pDevice = &(dataflash_info[i].Device);
257         *addr -= dataflash_info[i].logical_address;
258         return (pFlash);
259 }
260
261 /*---------------------------------------------------------------------------*/
262 /* Function Name       : addr_dataflash                                      */
263 /* Object              : Test if address is valid                            */
264 /*---------------------------------------------------------------------------*/
265 int addr_dataflash (unsigned long addr)
266 {
267         int addr_valid = 0;
268         int i;
269
270         for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) {
271                 if ((((int) addr) & 0xFF000000) ==
272                         dataflash_info[i].logical_address) {
273                         addr_valid = 1;
274                         break;
275                 }
276         }
277
278         return addr_valid;
279 }
280
281 /*---------------------------------------------------------------------------*/
282 /* Function Name       : size_dataflash                                      */
283 /* Object              : Test if address is valid regarding the size         */
284 /*---------------------------------------------------------------------------*/
285 int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr,
286                         unsigned long size)
287 {
288         /* is outside the dataflash */
289         if (((int)addr & 0x0FFFFFFF) > (pdataFlash->pDevice->pages_size *
290                 pdataFlash->pDevice->pages_number)) return 0;
291         /* is too large for the dataflash */
292         if (size > ((pdataFlash->pDevice->pages_size *
293                 pdataFlash->pDevice->pages_number) -
294                 ((int)addr & 0x0FFFFFFF))) return 0;
295
296         return 1;
297 }
298
299 /*---------------------------------------------------------------------------*/
300 /* Function Name       : prot_dataflash                                      */
301 /* Object              : Test if destination area is protected               */
302 /*---------------------------------------------------------------------------*/
303 int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr)
304 {
305         int area;
306
307         /* find area */
308         for (area = 0; area < NB_DATAFLASH_AREA; area++) {
309                 if ((addr >= pdataFlash->pDevice->area_list[area].start) &&
310                         (addr < pdataFlash->pDevice->area_list[area].end))
311                         break;
312         }
313         if (area == NB_DATAFLASH_AREA)
314                 return -1;
315
316         /*test protection value*/
317         if (pdataFlash->pDevice->area_list[area].protected == FLAG_PROTECT_SET)
318                 return 0;
319         if (pdataFlash->pDevice->area_list[area].protected == FLAG_PROTECT_INVALID)
320                 return 0;
321
322         return 1;
323 }
324
325 /*--------------------------------------------------------------------------*/
326 /* Function Name       : dataflash_real_protect                             */
327 /* Object              : protect/unprotect area                             */
328 /*--------------------------------------------------------------------------*/
329 int dataflash_real_protect (int flag, unsigned long start_addr,
330                                 unsigned long end_addr)
331 {
332         int i,j, area1, area2, addr_valid = 0;
333
334         /* find dataflash */
335         for (i = 0; i < CONFIG_SYS_MAX_DATAFLASH_BANKS; i++) {
336                 if ((((int) start_addr) & 0xF0000000) ==
337                         dataflash_info[i].logical_address) {
338                                 addr_valid = 1;
339                                 break;
340                 }
341         }
342         if (!addr_valid) {
343                 return -1;
344         }
345         /* find start area */
346         for (area1 = 0; area1 < NB_DATAFLASH_AREA; area1++) {
347                 if (start_addr == dataflash_info[i].Device.area_list[area1].start)
348                         break;
349         }
350         if (area1 == NB_DATAFLASH_AREA) return -1;
351         /* find end area */
352         for (area2 = 0; area2 < NB_DATAFLASH_AREA; area2++) {
353                 if (end_addr == dataflash_info[i].Device.area_list[area2].end)
354                         break;
355         }
356         if (area2 == NB_DATAFLASH_AREA)
357                 return -1;
358
359         /*set protection value*/
360         for(j = area1; j < area2 + 1 ; j++)
361                 if(dataflash_info[i].Device.area_list[j].protected
362                                 != FLAG_PROTECT_INVALID) {
363                         if (flag == 0) {
364                                 dataflash_info[i].Device.area_list[j].protected
365                                         = FLAG_PROTECT_CLEAR;
366                         } else {
367                                 dataflash_info[i].Device.area_list[j].protected
368                                         = FLAG_PROTECT_SET;
369                         }
370                 }
371
372         return (area2 - area1 + 1);
373 }
374
375 /*---------------------------------------------------------------------------*/
376 /* Function Name       : read_dataflash                                      */
377 /* Object              : dataflash memory read                               */
378 /*---------------------------------------------------------------------------*/
379 int read_dataflash (unsigned long addr, unsigned long size, char *result)
380 {
381         unsigned long AddrToRead = addr;
382         AT91PS_DataFlash pFlash = &DataFlashInst;
383
384         pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead);
385
386         if (pFlash == 0)
387                 return ERR_UNKNOWN_FLASH_TYPE;
388
389         if (size_dataflash(pFlash,addr,size) == 0)
390                 return ERR_INVAL;
391
392         return (AT91F_DataFlashRead (pFlash, AddrToRead, size, result));
393 }
394
395 /*---------------------------------------------------------------------------*/
396 /* Function Name       : write_dataflash                                     */
397 /* Object              : write a block in dataflash                          */
398 /*---------------------------------------------------------------------------*/
399 int write_dataflash (unsigned long addr_dest, unsigned long addr_src,
400                         unsigned long size)
401 {
402         unsigned long AddrToWrite = addr_dest;
403         AT91PS_DataFlash pFlash = &DataFlashInst;
404
405         pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite);
406
407         if (pFlash == 0)
408                 return ERR_UNKNOWN_FLASH_TYPE;
409
410         if (size_dataflash(pFlash,addr_dest,size) == 0)
411                 return ERR_INVAL;
412
413         if (prot_dataflash(pFlash,addr_dest) == 0)
414                 return ERR_PROTECTED;
415
416         if (AddrToWrite == -1)
417                 return -1;
418
419         return AT91F_DataFlashWrite (pFlash, (uchar *)addr_src,
420                                                 AddrToWrite, size);
421 }
422
423 void dataflash_perror (int err)
424 {
425         switch (err) {
426         case ERR_OK:
427                 break;
428         case ERR_TIMOUT:
429                 printf("Timeout writing to DataFlash\n");
430                 break;
431         case ERR_PROTECTED:
432                 printf("Can't write to protected/invalid DataFlash sectors\n");
433                 break;
434         case ERR_INVAL:
435                 printf("Outside available DataFlash\n");
436                 break;
437         case ERR_UNKNOWN_FLASH_TYPE:
438                 printf("Unknown Type of DataFlash\n");
439                 break;
440         case ERR_PROG_ERROR:
441                 printf("General DataFlash Programming Error\n");
442                 break;
443         default:
444                 printf("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err);
445                 break;
446         }
447 }