]> git.ipfire.org Git - people/ms/u-boot.git/blob - drivers/mtd/dataflash.c
projects / people / ms / u-boot.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'denx'
[people/ms/u-boot.git] / drivers / mtd / dataflash.c
1 /* LowLevel function for ATMEL DataFlash support
2 * Author : Hamid Ikdoumi (Atmel)
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17 * MA 02111-1307 USA
18 *
19 */
20 #include <common.h>
21 #include <config.h>
22 #ifdef CONFIG_HAS_DATAFLASH
23 #include <asm/hardware.h>
24 #include <dataflash.h>
25
26 AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS];
27 static AT91S_DataFlash DataFlashInst;
28
29 #ifdef CONFIG_AT91SAM9260EK
30 int cs[][CFG_MAX_DATAFLASH_BANKS] = {
31 {CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */
32 {CFG_DATAFLASH_LOGIC_ADDR_CS1, 1}
33 };
34 #elif defined(CONFIG_AT91SAM9263EK)
35 int cs[][CFG_MAX_DATAFLASH_BANKS] = {
36 {CFG_DATAFLASH_LOGIC_ADDR_CS0, 0} /* Logical adress, CS */
37 };
38 #else
39 int cs[][CFG_MAX_DATAFLASH_BANKS] = {
40 {CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */
41 {CFG_DATAFLASH_LOGIC_ADDR_CS3, 3}
42 };
43 #endif
44
45 /*define the area offsets*/
46 #if defined(CONFIG_AT91SAM9261EK) || defined(CONFIG_AT91SAM9260EK) || defined(CONFIG_AT91SAM9263EK)
47 #if defined(CONFIG_NEW_PARTITION)
48 dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
49 {0x00000000, 0x00003FFF, FLAG_PROTECT_SET, 0, "Bootstrap"}, /* ROM code */
50 {0x00004200, 0x000083FF, FLAG_PROTECT_CLEAR, 0, "Environment"}, /* u-boot environment */
51 {0x00008400, 0x0003DDFF, FLAG_PROTECT_SET, 0, "U-Boot"}, /* u-boot code */
52 {0x0003DE00, 0x00041FFF, FLAG_PROTECT_CLEAR, FLAG_SETENV, "MON"}, /* Room for alternative boot monitor */
53 {0x00042000, 0x0018BFFF, FLAG_PROTECT_CLEAR, FLAG_SETENV, "OS"}, /* data area size to tune */
54 {0x0018C000, 0xFFFFFFFF, FLAG_PROTECT_CLEAR, FLAG_SETENV, "FS"}, /* data area size to tune */
55 };
56 #else
57 dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
58 {0, 0x3fff, FLAG_PROTECT_SET}, /* ROM code */
59 {0x4000, 0x7fff, FLAG_PROTECT_CLEAR}, /* u-boot environment */
60 {0x8000, 0x37fff, FLAG_PROTECT_SET}, /* u-boot code */
61 {0x38000, 0x1fffff, FLAG_PROTECT_CLEAR}, /* data area size to tune */
62 };
63 #endif
64 #elif defined(CONFIG_NEW_PARTITION)
65 /*define the area offsets*/
66 /* Invalid partitions should be defined with start > end */
67 dataflash_protect_t area_list[NB_DATAFLASH_AREA*CFG_MAX_DATAFLASH_BANKS] = {
68 {0x00000000, 0x000083ff, FLAG_PROTECT_SET, 0, "Bootstrap"}, /* ROM code */
69 {0x00008400, 0x00020fff, FLAG_PROTECT_SET, 0, "U-Boot"}, /* u-boot code */
70 {0x00021000, 0x000293ff, FLAG_PROTECT_CLEAR, 0, "Environment"}, /* u-boot environment 8Kb */
71 {0x00029400, 0x00041fff, FLAG_PROTECT_INVALID, 0, "<Unused>"}, /* Rest of Sector 1 */
72 {0x00042000, 0x0018Bfff, FLAG_PROTECT_CLEAR, FLAG_SETENV, "OS"}, /* data area size to tune */
73 {0x0018C000, 0xffffffff, FLAG_PROTECT_CLEAR, FLAG_SETENV, "FS"}, /* data area size to tune */
74
75 {0x00000000, 0xffffffff, FLAG_PROTECT_CLEAR, FLAG_SETENV, "Data"}, /* data area */
76 {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
77 {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
78 {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
79 {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
80 {0xffffffff, 0x00000000, FLAG_PROTECT_INVALID, 0, "<Invalid>"}, /* Invalid */
81 };
82 #else
83 dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
84 {0, 0x7fff, FLAG_PROTECT_SET}, /* ROM code */
85 {0x8000, 0x1ffff, FLAG_PROTECT_SET}, /* u-boot code */
86 {0x20000, 0x27fff, FLAG_PROTECT_CLEAR}, /* u-boot environment */
87 {0x28000, 0x1fffff, FLAG_PROTECT_CLEAR}, /* data area size to tune */
88 };
89 #endif
90
91 extern void AT91F_SpiInit (void);
92 extern int AT91F_DataflashProbe (int i, AT91PS_DataflashDesc pDesc);
93 extern int AT91F_DataFlashRead (AT91PS_DataFlash pDataFlash,
94 unsigned long addr,
95 unsigned long size, char *buffer);
96 extern int AT91F_DataFlashWrite( AT91PS_DataFlash pDataFlash,
97 unsigned char *src,
98 int dest,
99 int size );
100
101 int AT91F_DataflashInit (void)
102 {
103 int i, j;
104 int dfcode;
105 int part = 0;
106 int last_part;
107 int found[CFG_MAX_DATAFLASH_BANKS];
108 unsigned char protected;
109
110 AT91F_SpiInit ();
111
112 for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
113 found[i] = 0;
114 dataflash_info[i].Desc.state = IDLE;
115 dataflash_info[i].id = 0;
116 dataflash_info[i].Device.pages_number = 0;
117 dfcode = AT91F_DataflashProbe (cs[i][1],
118 &dataflash_info[i].Desc);
119
120 switch (dfcode) {
121 case AT45DB161:
122 dataflash_info[i].Device.pages_number = 4096;
123 dataflash_info[i].Device.pages_size = 528;
124 dataflash_info[i].Device.page_offset = 10;
125 dataflash_info[i].Device.byte_mask = 0x300;
126 dataflash_info[i].Device.cs = cs[i][1];
127 dataflash_info[i].Desc.DataFlash_state = IDLE;
128 dataflash_info[i].logical_address = cs[i][0];
129 dataflash_info[i].id = dfcode;
130 found[i] += dfcode;;
131 break;
132
133 case AT45DB321:
134 dataflash_info[i].Device.pages_number = 8192;
135 dataflash_info[i].Device.pages_size = 528;
136 dataflash_info[i].Device.page_offset = 10;
137 dataflash_info[i].Device.byte_mask = 0x300;
138 dataflash_info[i].Device.cs = cs[i][1];
139 dataflash_info[i].Desc.DataFlash_state = IDLE;
140 dataflash_info[i].logical_address = cs[i][0];
141 dataflash_info[i].id = dfcode;
142 found[i] += dfcode;;
143 break;
144
145 case AT45DB642:
146 dataflash_info[i].Device.pages_number = 8192;
147 dataflash_info[i].Device.pages_size = 1056;
148 dataflash_info[i].Device.page_offset = 11;
149 dataflash_info[i].Device.byte_mask = 0x700;
150 dataflash_info[i].Device.cs = cs[i][1];
151 dataflash_info[i].Desc.DataFlash_state = IDLE;
152 dataflash_info[i].logical_address = cs[i][0];
153 dataflash_info[i].id = dfcode;
154 found[i] += dfcode;;
155 break;
156
157 case AT45DB128:
158 dataflash_info[i].Device.pages_number = 16384;
159 dataflash_info[i].Device.pages_size = 1056;
160 dataflash_info[i].Device.page_offset = 11;
161 dataflash_info[i].Device.byte_mask = 0x700;
162 dataflash_info[i].Device.cs = cs[i][1];
163 dataflash_info[i].Desc.DataFlash_state = IDLE;
164 dataflash_info[i].logical_address = cs[i][0];
165 dataflash_info[i].id = dfcode;
166 found[i] += dfcode;;
167 break;
168
169 default:
170 dfcode = 0;
171 break;
172 }
173 /* set the last area end to the dataflash size*/
174 area_list[NB_DATAFLASH_AREA -1].end =
175 (dataflash_info[i].Device.pages_number *
176 dataflash_info[i].Device.pages_size)-1;
177
178 last_part=0;
179 /* set the area addresses */
180 for(j = 0; j<NB_DATAFLASH_AREA; j++) {
181 if(found[i]!=0) {
182 dataflash_info[i].Device.area_list[j].start =
183 area_list[part].start +
184 dataflash_info[i].logical_address;
185 if(area_list[part].end == 0xffffffff) {
186 dataflash_info[i].Device.area_list[j].end =
187 dataflash_info[i].end_address +
188 dataflash_info [i].logical_address;
189 last_part = 1;
190 } else {
191 dataflash_info[i].Device.area_list[j].end =
192 area_list[part].end +
193 dataflash_info[i].logical_address;
194 }
195 protected = area_list[part].protected;
196 /* Set the environment according to the label...*/
197 if(protected == FLAG_PROTECT_INVALID) {
198 dataflash_info[i].Device.area_list[j].protected =
199 FLAG_PROTECT_INVALID;
200 } else {
201 dataflash_info[i].Device.area_list[j].protected =
202 protected;
203 }
204 strcpy((char*)(dataflash_info[i].Device.area_list[j].label),
205 (const char *)area_list[part].label);
206 }
207 part++;
208 }
209 }
210 return found[0];
211 }
212
213 #ifdef CONFIG_NEW_DF_PARTITION
214 int AT91F_DataflashSetEnv (void)
215 {
216 int i, j;
217 int part;
218 unsigned char env;
219 unsigned char s[32]; /* Will fit a long int in hex */
220 unsigned long start;
221 for (i = 0, part= 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
222 for(j = 0; j<NB_DATAFLASH_AREA; j++) {
223 env = area_list[part].setenv;
224 /* Set the environment according to the label...*/
225 if((env & FLAG_SETENV) == FLAG_SETENV) {
226 start =
227 dataflash_info[i].Device.area_list[j].start;
228 sprintf(s,"%X",start);
229 setenv(area_list[part].label,s);
230 }
231 part++;
232 }
233 }
234 }
235 #endif
236
237 void dataflash_print_info (void)
238 {
239 int i, j;
240
241 for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
242 if (dataflash_info[i].id != 0) {
243 printf("DataFlash:");
244 switch (dataflash_info[i].id) {
245 case AT45DB161:
246 printf("AT45DB161\n");
247 break;
248
249 case AT45DB321:
250 printf("AT45DB321\n");
251 break;
252
253 case AT45DB642:
254 printf("AT45DB642\n");
255 break;
256 case AT45DB128:
257 printf("AT45DB128\n");
258 break;
259 }
260
261 printf("Nb pages: %6d\n"
262 "Page Size: %6d\n"
263 "Size=%8d bytes\n"
264 "Logical address: 0x%08X\n",
265 (unsigned int) dataflash_info[i].Device.pages_number,
266 (unsigned int) dataflash_info[i].Device.pages_size,
267 (unsigned int) dataflash_info[i].Device.pages_number *
268 dataflash_info[i].Device.pages_size,
269 (unsigned int) dataflash_info[i].logical_address);
270 for (j=0; j< NB_DATAFLASH_AREA; j++) {
271 switch(dataflash_info[i].Device.area_list[j].protected) {
272 case FLAG_PROTECT_SET:
273 case FLAG_PROTECT_CLEAR:
274 printf("Area %i:\t%08lX to %08lX %s", j,
275 dataflash_info[i].Device.area_list[j].start,
276 dataflash_info[i].Device.area_list[j].end,
277 (dataflash_info[i].Device.area_list[j].protected==FLAG_PROTECT_SET) ? "(RO)" : " ");
278 #ifdef CONFIG_NEW_DF_PARTITION
279 printf(" %s\n", dataflash_info[i].Device.area_list[j].label);
280 #else
281 printf("\n");
282 #endif
283 break;
284 #ifdef CONFIG_NEW_DF_PARTITION
285 case FLAG_PROTECT_INVALID:
286 break;
287 #endif
288 }
289 }
290 }
291 }
292 }
293
294
295 /*---------------------------------------------------------------------------*/
296 /* Function Name : AT91F_DataflashSelect */
297 /* Object : Select the correct device */
298 /*---------------------------------------------------------------------------*/
299 AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash,
300 unsigned long *addr)
301 {
302 char addr_valid = 0;
303 int i;
304
305 for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++)
306 if ( dataflash_info[i].id
307 && ((((int) *addr) & 0xFF000000) ==
308 dataflash_info[i].logical_address)) {
309 addr_valid = 1;
310 break;
311 }
312 if (!addr_valid) {
313 pFlash = (AT91PS_DataFlash) 0;
314 return pFlash;
315 }
316 pFlash->pDataFlashDesc = &(dataflash_info[i].Desc);
317 pFlash->pDevice = &(dataflash_info[i].Device);
318 *addr -= dataflash_info[i].logical_address;
319 return (pFlash);
320 }
321
322 /*---------------------------------------------------------------------------*/
323 /* Function Name : addr_dataflash */
324 /* Object : Test if address is valid */
325 /*---------------------------------------------------------------------------*/
326 int addr_dataflash (unsigned long addr)
327 {
328 int addr_valid = 0;
329 int i;
330
331 for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
332 if ((((int) addr) & 0xFF000000) ==
333 dataflash_info[i].logical_address) {
334 addr_valid = 1;
335 break;
336 }
337 }
338
339 return addr_valid;
340 }
341 /*---------------------------------------------------------------------------*/
342 /* Function Name : size_dataflash */
343 /* Object : Test if address is valid regarding the size */
344 /*---------------------------------------------------------------------------*/
345 int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr,
346 unsigned long size)
347 {
348 /* is outside the dataflash */
349 if (((int)addr & 0x0FFFFFFF) > (pdataFlash->pDevice->pages_size *
350 pdataFlash->pDevice->pages_number)) return 0;
351 /* is too large for the dataflash */
352 if (size > ((pdataFlash->pDevice->pages_size *
353 pdataFlash->pDevice->pages_number) -
354 ((int)addr & 0x0FFFFFFF))) return 0;
355
356 return 1;
357 }
358 /*---------------------------------------------------------------------------*/
359 /* Function Name : prot_dataflash */
360 /* Object : Test if destination area is protected */
361 /*---------------------------------------------------------------------------*/
362 int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr)
363 {
364 int area;
365 /* find area */
366 for (area=0; area < NB_DATAFLASH_AREA; area++) {
367 if ((addr >= pdataFlash->pDevice->area_list[area].start) &&
368 (addr < pdataFlash->pDevice->area_list[area].end))
369 break;
370 }
371 if (area == NB_DATAFLASH_AREA)
372 return -1;
373
374 /*test protection value*/
375 if (pdataFlash->pDevice->area_list[area].protected == FLAG_PROTECT_SET)
376 return 0;
377 if (pdataFlash->pDevice->area_list[area].protected == FLAG_PROTECT_INVALID)
378 return 0;
379
380 return 1;
381 }
382 /*--------------------------------------------------------------------------*/
383 /* Function Name : dataflash_real_protect */
384 /* Object : protect/unprotect area */
385 /*--------------------------------------------------------------------------*/
386 int dataflash_real_protect (int flag, unsigned long start_addr,
387 unsigned long end_addr)
388 {
389 int i,j, area1, area2, addr_valid = 0;
390 /* find dataflash */
391 for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
392 if ((((int) start_addr) & 0xF0000000) ==
393 dataflash_info[i].logical_address) {
394 addr_valid = 1;
395 break;
396 }
397 }
398 if (!addr_valid) {
399 return -1;
400 }
401 /* find start area */
402 for (area1=0; area1 < NB_DATAFLASH_AREA; area1++) {
403 if (start_addr == dataflash_info[i].Device.area_list[area1].start)
404 break;
405 }
406 if (area1 == NB_DATAFLASH_AREA) return -1;
407 /* find end area */
408 for (area2=0; area2 < NB_DATAFLASH_AREA; area2++) {
409 if (end_addr == dataflash_info[i].Device.area_list[area2].end)
410 break;
411 }
412 if (area2 == NB_DATAFLASH_AREA)
413 return -1;
414
415 /*set protection value*/
416 for(j = area1; j < area2+1 ; j++)
417 if(dataflash_info[i].Device.area_list[j].protected
418 != FLAG_PROTECT_INVALID) {
419 if (flag == 0) {
420 dataflash_info[i].Device.area_list[j].protected
421 = FLAG_PROTECT_CLEAR;
422 } else {
423 dataflash_info[i].Device.area_list[j].protected
424 = FLAG_PROTECT_SET;
425 }
426 }
427
428 return (area2-area1+1);
429 }
430
431 /*---------------------------------------------------------------------------*/
432 /* Function Name : read_dataflash */
433 /* Object : dataflash memory read */
434 /*---------------------------------------------------------------------------*/
435 int read_dataflash (unsigned long addr, unsigned long size, char *result)
436 {
437 unsigned long AddrToRead = addr;
438 AT91PS_DataFlash pFlash = &DataFlashInst;
439
440 pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead);
441
442 if (pFlash == 0)
443 return ERR_UNKNOWN_FLASH_TYPE;
444
445 if (size_dataflash(pFlash,addr,size) == 0)
446 return ERR_INVAL;
447
448 return (AT91F_DataFlashRead (pFlash, AddrToRead, size, result));
449 }
450
451
452 /*---------------------------------------------------------------------------*/
453 /* Function Name : write_dataflash */
454 /* Object : write a block in dataflash */
455 /*---------------------------------------------------------------------------*/
456 int write_dataflash (unsigned long addr_dest, unsigned long addr_src,
457 unsigned long size)
458 {
459 unsigned long AddrToWrite = addr_dest;
460 AT91PS_DataFlash pFlash = &DataFlashInst;
461
462 pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite);
463
464 if (pFlash == 0)
465 return ERR_UNKNOWN_FLASH_TYPE;
466
467 if (size_dataflash(pFlash,addr_dest,size) == 0)
468 return ERR_INVAL;
469
470 if (prot_dataflash(pFlash,addr_dest) == 0)
471 return ERR_PROTECTED;
472
473 if (AddrToWrite == -1)
474 return -1;
475
476 return AT91F_DataFlashWrite (pFlash, (uchar *)addr_src,
477 AddrToWrite, size);
478 }
479
480
481 void dataflash_perror (int err)
482 {
483 switch (err) {
484 case ERR_OK:
485 break;
486 case ERR_TIMOUT:
487 printf("Timeout writing to DataFlash\n");
488 break;
489 case ERR_PROTECTED:
490 printf("Can't write to protected/invalid DataFlash sectors\n");
491 break;
492 case ERR_INVAL:
493 printf("Outside available DataFlash\n");
494 break;
495 case ERR_UNKNOWN_FLASH_TYPE:
496 printf("Unknown Type of DataFlash\n");
497 break;
498 case ERR_PROG_ERROR:
499 printf("General DataFlash Programming Error\n");
500 break;
501 default:
502 printf("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err);
503 break;
504 }
505 }
506
507 #endif
"Das U-Boot" Source Tree