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Michael Schwingen81b20cc2007-12-07 23:35:02 +01001/*
2 * (C) Copyright 2007
3 * Michael Schwingen, <michael@schwingen.org>
4 *
5 * based in great part on jedec_probe.c from linux kernel:
6 * (C) 2000 Red Hat. GPL'd.
7 * Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
26 *
27 */
28
29/* The DEBUG define must be before common to enable debugging */
30/*#define DEBUG*/
31
32#include <common.h>
33#include <asm/processor.h>
34#include <asm/io.h>
35#include <asm/byteorder.h>
36#include <environment.h>
37
38#define P_ID_AMD_STD CFI_CMDSET_AMD_LEGACY
39
Michael Schwingen81b20cc2007-12-07 23:35:02 +010040/* AMD */
Stefan Roese0192d7d2008-07-08 12:57:14 +020041#define AM29DL800BB 0x22CB
Michael Schwingen81b20cc2007-12-07 23:35:02 +010042#define AM29DL800BT 0x224A
43
David Müller3b8b2402010-12-21 10:09:56 +010044#define AM29F400BB 0x22AB
Michael Schwingen81b20cc2007-12-07 23:35:02 +010045#define AM29F800BB 0x2258
46#define AM29F800BT 0x22D6
47#define AM29LV400BB 0x22BA
48#define AM29LV400BT 0x22B9
49#define AM29LV800BB 0x225B
50#define AM29LV800BT 0x22DA
51#define AM29LV160DT 0x22C4
52#define AM29LV160DB 0x2249
53#define AM29F017D 0x003D
54#define AM29F016D 0x00AD
55#define AM29F080 0x00D5
56#define AM29F040 0x00A4
57#define AM29LV040B 0x004F
58#define AM29F032B 0x0041
59#define AM29F002T 0x00B0
60
61/* SST */
62#define SST39LF800 0x2781
63#define SST39LF160 0x2782
64#define SST39VF1601 0x234b
65#define SST39LF512 0x00D4
66#define SST39LF010 0x00D5
67#define SST39LF020 0x00D6
68#define SST39LF040 0x00D7
69#define SST39SF010A 0x00B5
70#define SST39SF020A 0x00B6
71
Niklaus Giger3a7b2c22009-07-22 17:13:24 +020072/* MXIC */
73#define MX29LV040 0x004F
74
75/* WINBOND */
76#define W39L040A 0x00D6
77
78/* AMIC */
79#define A29L040 0x0092
80
81/* EON */
82#define EN29LV040A 0x004F
Michael Schwingen81b20cc2007-12-07 23:35:02 +010083
84/*
85 * Unlock address sets for AMD command sets.
86 * Intel command sets use the MTD_UADDR_UNNECESSARY.
87 * Each identifier, except MTD_UADDR_UNNECESSARY, and
88 * MTD_UADDR_NO_SUPPORT must be defined below in unlock_addrs[].
89 * MTD_UADDR_NOT_SUPPORTED must be 0 so that structure
90 * initialization need not require initializing all of the
91 * unlock addresses for all bit widths.
92 */
93enum uaddr {
94 MTD_UADDR_NOT_SUPPORTED = 0, /* data width not supported */
95 MTD_UADDR_0x0555_0x02AA,
96 MTD_UADDR_0x0555_0x0AAA,
97 MTD_UADDR_0x5555_0x2AAA,
98 MTD_UADDR_0x0AAA_0x0555,
99 MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */
100 MTD_UADDR_UNNECESSARY, /* Does not require any address */
101};
102
103
104struct unlock_addr {
105 u32 addr1;
106 u32 addr2;
107};
108
109
110/*
111 * I don't like the fact that the first entry in unlock_addrs[]
112 * exists, but is for MTD_UADDR_NOT_SUPPORTED - and, therefore,
113 * should not be used. The problem is that structures with
114 * initializers have extra fields initialized to 0. It is _very_
115 * desireable to have the unlock address entries for unsupported
116 * data widths automatically initialized - that means that
117 * MTD_UADDR_NOT_SUPPORTED must be 0 and the first entry here
118 * must go unused.
119 */
120static const struct unlock_addr unlock_addrs[] = {
121 [MTD_UADDR_NOT_SUPPORTED] = {
122 .addr1 = 0xffff,
123 .addr2 = 0xffff
124 },
125
126 [MTD_UADDR_0x0555_0x02AA] = {
127 .addr1 = 0x0555,
128 .addr2 = 0x02aa
129 },
130
131 [MTD_UADDR_0x0555_0x0AAA] = {
132 .addr1 = 0x0555,
133 .addr2 = 0x0aaa
134 },
135
136 [MTD_UADDR_0x5555_0x2AAA] = {
137 .addr1 = 0x5555,
138 .addr2 = 0x2aaa
139 },
140
141 [MTD_UADDR_0x0AAA_0x0555] = {
142 .addr1 = 0x0AAA,
143 .addr2 = 0x0555
144 },
145
146 [MTD_UADDR_DONT_CARE] = {
147 .addr1 = 0x0000, /* Doesn't matter which address */
148 .addr2 = 0x0000 /* is used - must be last entry */
149 },
150
151 [MTD_UADDR_UNNECESSARY] = {
152 .addr1 = 0x0000,
153 .addr2 = 0x0000
154 }
155};
156
157
158struct amd_flash_info {
159 const __u16 mfr_id;
160 const __u16 dev_id;
161 const char *name;
162 const int DevSize;
163 const int NumEraseRegions;
164 const int CmdSet;
165 const __u8 uaddr[4]; /* unlock addrs for 8, 16, 32, 64 */
166 const ulong regions[6];
167};
168
169#define ERASEINFO(size,blocks) (size<<8)|(blocks-1)
170
171#define SIZE_64KiB 16
172#define SIZE_128KiB 17
173#define SIZE_256KiB 18
174#define SIZE_512KiB 19
175#define SIZE_1MiB 20
176#define SIZE_2MiB 21
177#define SIZE_4MiB 22
178#define SIZE_8MiB 23
179
180static const struct amd_flash_info jedec_table[] = {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200181#ifdef CONFIG_SYS_FLASH_LEGACY_256Kx8
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100182 {
Stefan Roese28745db2009-01-29 11:21:38 +0100183 .mfr_id = (u16)SST_MANUFACT,
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100184 .dev_id = SST39LF020,
185 .name = "SST 39LF020",
Stefan Roese9692c272007-12-08 08:25:09 +0100186 .uaddr = {
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100187 [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
188 },
189 .DevSize = SIZE_256KiB,
190 .CmdSet = P_ID_AMD_STD,
191 .NumEraseRegions= 1,
192 .regions = {
193 ERASEINFO(0x01000,64),
194 }
Stefan Roese9692c272007-12-08 08:25:09 +0100195 },
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100196#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200197#ifdef CONFIG_SYS_FLASH_LEGACY_512Kx8
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100198 {
Stefan Roese28745db2009-01-29 11:21:38 +0100199 .mfr_id = (u16)AMD_MANUFACT,
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100200 .dev_id = AM29LV040B,
201 .name = "AMD AM29LV040B",
202 .uaddr = {
203 [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
204 },
205 .DevSize = SIZE_512KiB,
206 .CmdSet = P_ID_AMD_STD,
207 .NumEraseRegions= 1,
208 .regions = {
209 ERASEINFO(0x10000,8),
210 }
211 },
212 {
Stefan Roese28745db2009-01-29 11:21:38 +0100213 .mfr_id = (u16)SST_MANUFACT,
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100214 .dev_id = SST39LF040,
215 .name = "SST 39LF040",
Stefan Roese9692c272007-12-08 08:25:09 +0100216 .uaddr = {
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100217 [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
218 },
219 .DevSize = SIZE_512KiB,
220 .CmdSet = P_ID_AMD_STD,
221 .NumEraseRegions= 1,
222 .regions = {
223 ERASEINFO(0x01000,128),
224 }
Stefan Roese9692c272007-12-08 08:25:09 +0100225 },
Niklaus Giger94f92792008-12-08 17:24:08 +0100226 {
Stefan Roese28745db2009-01-29 11:21:38 +0100227 .mfr_id = (u16)STM_MANUFACT,
Niklaus Giger94f92792008-12-08 17:24:08 +0100228 .dev_id = STM_ID_M29W040B,
229 .name = "ST Micro M29W040B",
230 .uaddr = {
231 [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
232 },
233 .DevSize = SIZE_512KiB,
234 .CmdSet = P_ID_AMD_STD,
235 .NumEraseRegions= 1,
236 .regions = {
237 ERASEINFO(0x10000,8),
238 }
239 },
Niklaus Giger3a7b2c22009-07-22 17:13:24 +0200240 {
241 .mfr_id = (u16)MX_MANUFACT,
242 .dev_id = MX29LV040,
243 .name = "MXIC MX29LV040",
244 .uaddr = {
245 [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
246 },
247 .DevSize = SIZE_512KiB,
248 .CmdSet = P_ID_AMD_STD,
249 .NumEraseRegions= 1,
250 .regions = {
251 ERASEINFO(0x10000, 8),
252 }
253 },
254 {
255 .mfr_id = (u16)WINB_MANUFACT,
256 .dev_id = W39L040A,
257 .name = "WINBOND W39L040A",
258 .uaddr = {
259 [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
260 },
261 .DevSize = SIZE_512KiB,
262 .CmdSet = P_ID_AMD_STD,
263 .NumEraseRegions= 1,
264 .regions = {
265 ERASEINFO(0x10000, 8),
266 }
267 },
268 {
269 .mfr_id = (u16)AMIC_MANUFACT,
270 .dev_id = A29L040,
271 .name = "AMIC A29L040",
272 .uaddr = {
273 [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
274 },
275 .DevSize = SIZE_512KiB,
276 .CmdSet = P_ID_AMD_STD,
277 .NumEraseRegions= 1,
278 .regions = {
279 ERASEINFO(0x10000, 8),
280 }
281 },
282 {
283 .mfr_id = (u16)EON_MANUFACT,
284 .dev_id = EN29LV040A,
285 .name = "EON EN29LV040A",
286 .uaddr = {
287 [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
288 },
289 .DevSize = SIZE_512KiB,
290 .CmdSet = P_ID_AMD_STD,
291 .NumEraseRegions= 1,
292 .regions = {
293 ERASEINFO(0x10000, 8),
294 }
295 },
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100296#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200297#ifdef CONFIG_SYS_FLASH_LEGACY_512Kx16
Tor Krill90447ec2008-03-28 11:29:10 +0100298 {
Stefan Roese28745db2009-01-29 11:21:38 +0100299 .mfr_id = (u16)AMD_MANUFACT,
David Müller3b8b2402010-12-21 10:09:56 +0100300 .dev_id = AM29F400BB,
301 .name = "AMD AM29F400BB",
302 .uaddr = {
303 [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
304 },
305 .DevSize = SIZE_512KiB,
306 .CmdSet = CFI_CMDSET_AMD_LEGACY,
307 .NumEraseRegions= 4,
308 .regions = {
309 ERASEINFO(0x04000, 1),
310 ERASEINFO(0x02000, 2),
311 ERASEINFO(0x08000, 1),
312 ERASEINFO(0x10000, 7),
313 }
314 },
315 {
316 .mfr_id = (u16)AMD_MANUFACT,
Tor Krill90447ec2008-03-28 11:29:10 +0100317 .dev_id = AM29LV400BB,
318 .name = "AMD AM29LV400BB",
319 .uaddr = {
320 [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
321 },
322 .DevSize = SIZE_512KiB,
323 .CmdSet = CFI_CMDSET_AMD_LEGACY,
324 .NumEraseRegions= 4,
325 .regions = {
326 ERASEINFO(0x04000,1),
327 ERASEINFO(0x02000,2),
328 ERASEINFO(0x08000,1),
329 ERASEINFO(0x10000,7),
330 }
331 },
Guennadi Liakhovetski79498392008-08-05 15:36:39 +0200332 {
Stefan Roese28745db2009-01-29 11:21:38 +0100333 .mfr_id = (u16)AMD_MANUFACT,
Guennadi Liakhovetski79498392008-08-05 15:36:39 +0200334 .dev_id = AM29LV800BB,
335 .name = "AMD AM29LV800BB",
336 .uaddr = {
337 [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
338 },
339 .DevSize = SIZE_1MiB,
340 .CmdSet = CFI_CMDSET_AMD_LEGACY,
341 .NumEraseRegions= 4,
342 .regions = {
343 ERASEINFO(0x04000, 1),
344 ERASEINFO(0x02000, 2),
345 ERASEINFO(0x08000, 1),
346 ERASEINFO(0x10000, 15),
347 }
348 },
Tor Krill90447ec2008-03-28 11:29:10 +0100349#endif
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100350};
351
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100352static inline void fill_info(flash_info_t *info, const struct amd_flash_info *jedec_entry, ulong base)
353{
354 int i,j;
355 int sect_cnt;
356 int size_ratio;
357 int total_size;
358 enum uaddr uaddr_idx;
359
360 size_ratio = info->portwidth / info->chipwidth;
361
362 debug("Found JEDEC Flash: %s\n", jedec_entry->name);
363 info->vendor = jedec_entry->CmdSet;
364 /* Todo: do we need device-specific timeouts? */
365 info->erase_blk_tout = 30000;
366 info->buffer_write_tout = 1000;
367 info->write_tout = 100;
368 info->name = jedec_entry->name;
369
370 /* copy unlock addresses from device table to CFI info struct. This
371 is just here because the addresses are in the table anyway - if
372 the flash is not detected due to wrong unlock addresses,
373 flash_detect_legacy would have to try all of them before we even
374 get here. */
375 switch(info->chipwidth) {
376 case FLASH_CFI_8BIT:
377 uaddr_idx = jedec_entry->uaddr[0];
378 break;
379 case FLASH_CFI_16BIT:
380 uaddr_idx = jedec_entry->uaddr[1];
381 break;
382 case FLASH_CFI_32BIT:
383 uaddr_idx = jedec_entry->uaddr[2];
384 break;
385 default:
386 uaddr_idx = MTD_UADDR_NOT_SUPPORTED;
387 break;
388 }
389
390 debug("unlock address index %d\n", uaddr_idx);
391 info->addr_unlock1 = unlock_addrs[uaddr_idx].addr1;
392 info->addr_unlock2 = unlock_addrs[uaddr_idx].addr2;
393 debug("unlock addresses are 0x%x/0x%x\n", info->addr_unlock1, info->addr_unlock2);
394
395 sect_cnt = 0;
396 total_size = 0;
397 for (i = 0; i < jedec_entry->NumEraseRegions; i++) {
398 ulong erase_region_size = jedec_entry->regions[i] >> 8;
399 ulong erase_region_count = (jedec_entry->regions[i] & 0xff) + 1;
400
401 total_size += erase_region_size * erase_region_count;
402 debug ("erase_region_count = %d erase_region_size = %d\n",
403 erase_region_count, erase_region_size);
404 for (j = 0; j < erase_region_count; j++) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200405 if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) {
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100406 printf("ERROR: too many flash sectors\n");
407 break;
408 }
409 info->start[sect_cnt] = base;
410 base += (erase_region_size * size_ratio);
411 sect_cnt++;
412 }
413 }
414 info->sector_count = sect_cnt;
415 info->size = total_size * size_ratio;
416}
417
418/*-----------------------------------------------------------------------
419 * match jedec ids against table. If a match is found, fill flash_info entry
420 */
421int jedec_flash_match(flash_info_t *info, ulong base)
422{
423 int ret = 0;
424 int i;
425 ulong mask = 0xFFFF;
426 if (info->chipwidth == 1)
427 mask = 0xFF;
428
429 for (i = 0; i < ARRAY_SIZE(jedec_table); i++) {
430 if ((jedec_table[i].mfr_id & mask) == (info->manufacturer_id & mask) &&
431 (jedec_table[i].dev_id & mask) == (info->device_id & mask)) {
432 fill_info(info, &jedec_table[i], base);
433 ret = 1;
434 break;
435 }
436 }
437 return ret;
438}