1 /*
2    Common Flash Interface probe code.
3    (C) 2000 Red Hat. GPL'd.
4    See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
5    for the standard this probe goes back to.
6 
7    Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com
8 */
9 
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/types.h>
13 #include <linux/kernel.h>
14 #include <asm/io.h>
15 #include <asm/byteorder.h>
16 #include <linux/errno.h>
17 #include <linux/slab.h>
18 #include <linux/interrupt.h>
19 
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/map.h>
22 #include <linux/mtd/cfi.h>
23 #include <linux/mtd/gen_probe.h>
24 
25 /* AMD */
26 #define AM29DL800BB	0x22CB
27 #define AM29DL800BT	0x224A
28 
29 #define AM29F800BB	0x2258
30 #define AM29F800BT	0x22D6
31 #define AM29LV400BB	0x22BA
32 #define AM29LV400BT	0x22B9
33 #define AM29LV800BB	0x225B
34 #define AM29LV800BT	0x22DA
35 #define AM29LV160DT	0x22C4
36 #define AM29LV160DB	0x2249
37 #define AM29F017D	0x003D
38 #define AM29F016D	0x00AD
39 #define AM29F080	0x00D5
40 #define AM29F040	0x00A4
41 #define AM29LV040B	0x004F
42 #define AM29F032B	0x0041
43 #define AM29F002T	0x00B0
44 #define AM29SL800DB	0x226B
45 #define AM29SL800DT	0x22EA
46 
47 /* Atmel */
48 #define AT49BV512	0x0003
49 #define AT29LV512	0x003d
50 #define AT49BV16X	0x00C0
51 #define AT49BV16XT	0x00C2
52 #define AT49BV32X	0x00C8
53 #define AT49BV32XT	0x00C9
54 
55 /* Eon */
56 #define EN29LV400AT	0x22B9
57 #define EN29LV400AB	0x22BA
58 #define EN29SL800BB	0x226B
59 #define EN29SL800BT	0x22EA
60 
61 /* Fujitsu */
62 #define MBM29F040C	0x00A4
63 #define MBM29F800BA	0x2258
64 #define MBM29LV650UE	0x22D7
65 #define MBM29LV320TE	0x22F6
66 #define MBM29LV320BE	0x22F9
67 #define MBM29LV160TE	0x22C4
68 #define MBM29LV160BE	0x2249
69 #define MBM29LV800BA	0x225B
70 #define MBM29LV800TA	0x22DA
71 #define MBM29LV400TC	0x22B9
72 #define MBM29LV400BC	0x22BA
73 
74 /* Hyundai */
75 #define HY29F002T	0x00B0
76 
77 /* Intel */
78 #define I28F004B3T	0x00d4
79 #define I28F004B3B	0x00d5
80 #define I28F400B3T	0x8894
81 #define I28F400B3B	0x8895
82 #define I28F008S5	0x00a6
83 #define I28F016S5	0x00a0
84 #define I28F008SA	0x00a2
85 #define I28F008B3T	0x00d2
86 #define I28F008B3B	0x00d3
87 #define I28F800B3T	0x8892
88 #define I28F800B3B	0x8893
89 #define I28F016S3	0x00aa
90 #define I28F016B3T	0x00d0
91 #define I28F016B3B	0x00d1
92 #define I28F160B3T	0x8890
93 #define I28F160B3B	0x8891
94 #define I28F320B3T	0x8896
95 #define I28F320B3B	0x8897
96 #define I28F640B3T	0x8898
97 #define I28F640B3B	0x8899
98 #define I28F640C3B	0x88CD
99 #define I28F160F3T	0x88F3
100 #define I28F160F3B	0x88F4
101 #define I28F160C3T	0x88C2
102 #define I28F160C3B	0x88C3
103 #define I82802AB	0x00ad
104 #define I82802AC	0x00ac
105 
106 /* Macronix */
107 #define MX29LV040C	0x004F
108 #define MX29LV160T	0x22C4
109 #define MX29LV160B	0x2249
110 #define MX29F040	0x00A4
111 #define MX29F016	0x00AD
112 #define MX29F002T	0x00B0
113 #define MX29F004T	0x0045
114 #define MX29F004B	0x0046
115 
116 /* NEC */
117 #define UPD29F064115	0x221C
118 
119 /* PMC */
120 #define PM49FL002	0x006D
121 #define PM49FL004	0x006E
122 #define PM49FL008	0x006A
123 
124 /* Sharp */
125 #define LH28F640BF	0x00B0
126 
127 /* ST - www.st.com */
128 #define M29F800AB	0x0058
129 #define M29W800DT	0x22D7
130 #define M29W800DB	0x225B
131 #define M29W400DT	0x00EE
132 #define M29W400DB	0x00EF
133 #define M29W160DT	0x22C4
134 #define M29W160DB	0x2249
135 #define M29W040B	0x00E3
136 #define M50FW040	0x002C
137 #define M50FW080	0x002D
138 #define M50FW016	0x002E
139 #define M50LPW080       0x002F
140 #define M50FLW080A	0x0080
141 #define M50FLW080B	0x0081
142 #define PSD4256G6V	0x00e9
143 
144 /* SST */
145 #define SST29EE020	0x0010
146 #define SST29LE020	0x0012
147 #define SST29EE512	0x005d
148 #define SST29LE512	0x003d
149 #define SST39LF800	0x2781
150 #define SST39LF160	0x2782
151 #define SST39VF1601	0x234b
152 #define SST39VF3201	0x235b
153 #define SST39WF1601	0x274b
154 #define SST39WF1602	0x274a
155 #define SST39LF512	0x00D4
156 #define SST39LF010	0x00D5
157 #define SST39LF020	0x00D6
158 #define SST39LF040	0x00D7
159 #define SST39SF010A	0x00B5
160 #define SST39SF020A	0x00B6
161 #define SST39SF040	0x00B7
162 #define SST49LF004B	0x0060
163 #define SST49LF040B	0x0050
164 #define SST49LF008A	0x005a
165 #define SST49LF030A	0x001C
166 #define SST49LF040A	0x0051
167 #define SST49LF080A	0x005B
168 #define SST36VF3203	0x7354
169 
170 /* Toshiba */
171 #define TC58FVT160	0x00C2
172 #define TC58FVB160	0x0043
173 #define TC58FVT321	0x009A
174 #define TC58FVB321	0x009C
175 #define TC58FVT641	0x0093
176 #define TC58FVB641	0x0095
177 
178 /* Winbond */
179 #define W49V002A	0x00b0
180 
181 
182 /*
183  * Unlock address sets for AMD command sets.
184  * Intel command sets use the MTD_UADDR_UNNECESSARY.
185  * Each identifier, except MTD_UADDR_UNNECESSARY, and
186  * MTD_UADDR_NO_SUPPORT must be defined below in unlock_addrs[].
187  * MTD_UADDR_NOT_SUPPORTED must be 0 so that structure
188  * initialization need not require initializing all of the
189  * unlock addresses for all bit widths.
190  */
191 enum uaddr {
192 	MTD_UADDR_NOT_SUPPORTED = 0,	/* data width not supported */
193 	MTD_UADDR_0x0555_0x02AA,
194 	MTD_UADDR_0x0555_0x0AAA,
195 	MTD_UADDR_0x5555_0x2AAA,
196 	MTD_UADDR_0x0AAA_0x0554,
197 	MTD_UADDR_0x0AAA_0x0555,
198 	MTD_UADDR_0xAAAA_0x5555,
199 	MTD_UADDR_DONT_CARE,		/* Requires an arbitrary address */
200 	MTD_UADDR_UNNECESSARY,		/* Does not require any address */
201 };
202 
203 
204 struct unlock_addr {
205 	uint32_t addr1;
206 	uint32_t addr2;
207 };
208 
209 
210 /*
211  * I don't like the fact that the first entry in unlock_addrs[]
212  * exists, but is for MTD_UADDR_NOT_SUPPORTED - and, therefore,
213  * should not be used.  The  problem is that structures with
214  * initializers have extra fields initialized to 0.  It is _very_
215  * desirable to have the unlock address entries for unsupported
216  * data widths automatically initialized - that means that
217  * MTD_UADDR_NOT_SUPPORTED must be 0 and the first entry here
218  * must go unused.
219  */
220 static const struct unlock_addr  unlock_addrs[] = {
221 	[MTD_UADDR_NOT_SUPPORTED] = {
222 		.addr1 = 0xffff,
223 		.addr2 = 0xffff
224 	},
225 
226 	[MTD_UADDR_0x0555_0x02AA] = {
227 		.addr1 = 0x0555,
228 		.addr2 = 0x02aa
229 	},
230 
231 	[MTD_UADDR_0x0555_0x0AAA] = {
232 		.addr1 = 0x0555,
233 		.addr2 = 0x0aaa
234 	},
235 
236 	[MTD_UADDR_0x5555_0x2AAA] = {
237 		.addr1 = 0x5555,
238 		.addr2 = 0x2aaa
239 	},
240 
241 	[MTD_UADDR_0x0AAA_0x0554] = {
242 		.addr1 = 0x0AAA,
243 		.addr2 = 0x0554
244 	},
245 
246 	[MTD_UADDR_0x0AAA_0x0555] = {
247 		.addr1 = 0x0AAA,
248 		.addr2 = 0x0555
249 	},
250 
251 	[MTD_UADDR_0xAAAA_0x5555] = {
252 		.addr1 = 0xaaaa,
253 		.addr2 = 0x5555
254 	},
255 
256 	[MTD_UADDR_DONT_CARE] = {
257 		.addr1 = 0x0000,      /* Doesn't matter which address */
258 		.addr2 = 0x0000       /* is used - must be last entry */
259 	},
260 
261 	[MTD_UADDR_UNNECESSARY] = {
262 		.addr1 = 0x0000,
263 		.addr2 = 0x0000
264 	}
265 };
266 
267 struct amd_flash_info {
268 	const char *name;
269 	const uint16_t mfr_id;
270 	const uint16_t dev_id;
271 	const uint8_t dev_size;
272 	const uint8_t nr_regions;
273 	const uint16_t cmd_set;
274 	const uint32_t regions[6];
275 	const uint8_t devtypes;		/* Bitmask for x8, x16 etc. */
276 	const uint8_t uaddr;		/* unlock addrs for 8, 16, 32, 64 */
277 };
278 
279 #define ERASEINFO(size,blocks) (size<<8)|(blocks-1)
280 
281 #define SIZE_64KiB  16
282 #define SIZE_128KiB 17
283 #define SIZE_256KiB 18
284 #define SIZE_512KiB 19
285 #define SIZE_1MiB   20
286 #define SIZE_2MiB   21
287 #define SIZE_4MiB   22
288 #define SIZE_8MiB   23
289 
290 
291 /*
292  * Please keep this list ordered by manufacturer!
293  * Fortunately, the list isn't searched often and so a
294  * slow, linear search isn't so bad.
295  */
296 static const struct amd_flash_info jedec_table[] = {
297 	{
298 		.mfr_id		= CFI_MFR_AMD,
299 		.dev_id		= AM29F032B,
300 		.name		= "AMD AM29F032B",
301 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
302 		.devtypes	= CFI_DEVICETYPE_X8,
303 		.dev_size	= SIZE_4MiB,
304 		.cmd_set	= P_ID_AMD_STD,
305 		.nr_regions	= 1,
306 		.regions	= {
307 			ERASEINFO(0x10000,64)
308 		}
309 	}, {
310 		.mfr_id		= CFI_MFR_AMD,
311 		.dev_id		= AM29LV160DT,
312 		.name		= "AMD AM29LV160DT",
313 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
314 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
315 		.dev_size	= SIZE_2MiB,
316 		.cmd_set	= P_ID_AMD_STD,
317 		.nr_regions	= 4,
318 		.regions	= {
319 			ERASEINFO(0x10000,31),
320 			ERASEINFO(0x08000,1),
321 			ERASEINFO(0x02000,2),
322 			ERASEINFO(0x04000,1)
323 		}
324 	}, {
325 		.mfr_id		= CFI_MFR_AMD,
326 		.dev_id		= AM29LV160DB,
327 		.name		= "AMD AM29LV160DB",
328 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
329 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
330 		.dev_size	= SIZE_2MiB,
331 		.cmd_set	= P_ID_AMD_STD,
332 		.nr_regions	= 4,
333 		.regions	= {
334 			ERASEINFO(0x04000,1),
335 			ERASEINFO(0x02000,2),
336 			ERASEINFO(0x08000,1),
337 			ERASEINFO(0x10000,31)
338 		}
339 	}, {
340 		.mfr_id		= CFI_MFR_AMD,
341 		.dev_id		= AM29LV400BB,
342 		.name		= "AMD AM29LV400BB",
343 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
344 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
345 		.dev_size	= SIZE_512KiB,
346 		.cmd_set	= P_ID_AMD_STD,
347 		.nr_regions	= 4,
348 		.regions	= {
349 			ERASEINFO(0x04000,1),
350 			ERASEINFO(0x02000,2),
351 			ERASEINFO(0x08000,1),
352 			ERASEINFO(0x10000,7)
353 		}
354 	}, {
355 		.mfr_id		= CFI_MFR_AMD,
356 		.dev_id		= AM29LV400BT,
357 		.name		= "AMD AM29LV400BT",
358 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
359 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
360 		.dev_size	= SIZE_512KiB,
361 		.cmd_set	= P_ID_AMD_STD,
362 		.nr_regions	= 4,
363 		.regions	= {
364 			ERASEINFO(0x10000,7),
365 			ERASEINFO(0x08000,1),
366 			ERASEINFO(0x02000,2),
367 			ERASEINFO(0x04000,1)
368 		}
369 	}, {
370 		.mfr_id		= CFI_MFR_AMD,
371 		.dev_id		= AM29LV800BB,
372 		.name		= "AMD AM29LV800BB",
373 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
374 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
375 		.dev_size	= SIZE_1MiB,
376 		.cmd_set	= P_ID_AMD_STD,
377 		.nr_regions	= 4,
378 		.regions	= {
379 			ERASEINFO(0x04000,1),
380 			ERASEINFO(0x02000,2),
381 			ERASEINFO(0x08000,1),
382 			ERASEINFO(0x10000,15),
383 		}
384 	}, {
385 /* add DL */
386 		.mfr_id		= CFI_MFR_AMD,
387 		.dev_id		= AM29DL800BB,
388 		.name		= "AMD AM29DL800BB",
389 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
390 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
391 		.dev_size	= SIZE_1MiB,
392 		.cmd_set	= P_ID_AMD_STD,
393 		.nr_regions	= 6,
394 		.regions	= {
395 			ERASEINFO(0x04000,1),
396 			ERASEINFO(0x08000,1),
397 			ERASEINFO(0x02000,4),
398 			ERASEINFO(0x08000,1),
399 			ERASEINFO(0x04000,1),
400 			ERASEINFO(0x10000,14)
401 		}
402 	}, {
403 		.mfr_id		= CFI_MFR_AMD,
404 		.dev_id		= AM29DL800BT,
405 		.name		= "AMD AM29DL800BT",
406 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
407 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
408 		.dev_size	= SIZE_1MiB,
409 		.cmd_set	= P_ID_AMD_STD,
410 		.nr_regions	= 6,
411 		.regions	= {
412 			ERASEINFO(0x10000,14),
413 			ERASEINFO(0x04000,1),
414 			ERASEINFO(0x08000,1),
415 			ERASEINFO(0x02000,4),
416 			ERASEINFO(0x08000,1),
417 			ERASEINFO(0x04000,1)
418 		}
419 	}, {
420 		.mfr_id		= CFI_MFR_AMD,
421 		.dev_id		= AM29F800BB,
422 		.name		= "AMD AM29F800BB",
423 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
424 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
425 		.dev_size	= SIZE_1MiB,
426 		.cmd_set	= P_ID_AMD_STD,
427 		.nr_regions	= 4,
428 		.regions	= {
429 			ERASEINFO(0x04000,1),
430 			ERASEINFO(0x02000,2),
431 			ERASEINFO(0x08000,1),
432 			ERASEINFO(0x10000,15),
433 		}
434 	}, {
435 		.mfr_id		= CFI_MFR_AMD,
436 		.dev_id		= AM29LV800BT,
437 		.name		= "AMD AM29LV800BT",
438 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
439 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
440 		.dev_size	= SIZE_1MiB,
441 		.cmd_set	= P_ID_AMD_STD,
442 		.nr_regions	= 4,
443 		.regions	= {
444 			ERASEINFO(0x10000,15),
445 			ERASEINFO(0x08000,1),
446 			ERASEINFO(0x02000,2),
447 			ERASEINFO(0x04000,1)
448 		}
449 	}, {
450 		.mfr_id		= CFI_MFR_AMD,
451 		.dev_id		= AM29F800BT,
452 		.name		= "AMD AM29F800BT",
453 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
454 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
455 		.dev_size	= SIZE_1MiB,
456 		.cmd_set	= P_ID_AMD_STD,
457 		.nr_regions	= 4,
458 		.regions	= {
459 			ERASEINFO(0x10000,15),
460 			ERASEINFO(0x08000,1),
461 			ERASEINFO(0x02000,2),
462 			ERASEINFO(0x04000,1)
463 		}
464 	}, {
465 		.mfr_id		= CFI_MFR_AMD,
466 		.dev_id		= AM29F017D,
467 		.name		= "AMD AM29F017D",
468 		.devtypes	= CFI_DEVICETYPE_X8,
469 		.uaddr		= MTD_UADDR_DONT_CARE,
470 		.dev_size	= SIZE_2MiB,
471 		.cmd_set	= P_ID_AMD_STD,
472 		.nr_regions	= 1,
473 		.regions	= {
474 			ERASEINFO(0x10000,32),
475 		}
476 	}, {
477 		.mfr_id		= CFI_MFR_AMD,
478 		.dev_id		= AM29F016D,
479 		.name		= "AMD AM29F016D",
480 		.devtypes	= CFI_DEVICETYPE_X8,
481 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
482 		.dev_size	= SIZE_2MiB,
483 		.cmd_set	= P_ID_AMD_STD,
484 		.nr_regions	= 1,
485 		.regions	= {
486 			ERASEINFO(0x10000,32),
487 		}
488 	}, {
489 		.mfr_id		= CFI_MFR_AMD,
490 		.dev_id		= AM29F080,
491 		.name		= "AMD AM29F080",
492 		.devtypes	= CFI_DEVICETYPE_X8,
493 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
494 		.dev_size	= SIZE_1MiB,
495 		.cmd_set	= P_ID_AMD_STD,
496 		.nr_regions	= 1,
497 		.regions	= {
498 			ERASEINFO(0x10000,16),
499 		}
500 	}, {
501 		.mfr_id		= CFI_MFR_AMD,
502 		.dev_id		= AM29F040,
503 		.name		= "AMD AM29F040",
504 		.devtypes	= CFI_DEVICETYPE_X8,
505 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
506 		.dev_size	= SIZE_512KiB,
507 		.cmd_set	= P_ID_AMD_STD,
508 		.nr_regions	= 1,
509 		.regions	= {
510 			ERASEINFO(0x10000,8),
511 		}
512 	}, {
513 		.mfr_id		= CFI_MFR_AMD,
514 		.dev_id		= AM29LV040B,
515 		.name		= "AMD AM29LV040B",
516 		.devtypes	= CFI_DEVICETYPE_X8,
517 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
518 		.dev_size	= SIZE_512KiB,
519 		.cmd_set	= P_ID_AMD_STD,
520 		.nr_regions	= 1,
521 		.regions	= {
522 			ERASEINFO(0x10000,8),
523 		}
524 	}, {
525 		.mfr_id		= CFI_MFR_AMD,
526 		.dev_id		= AM29F002T,
527 		.name		= "AMD AM29F002T",
528 		.devtypes	= CFI_DEVICETYPE_X8,
529 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
530 		.dev_size	= SIZE_256KiB,
531 		.cmd_set	= P_ID_AMD_STD,
532 		.nr_regions	= 4,
533 		.regions	= {
534 			ERASEINFO(0x10000,3),
535 			ERASEINFO(0x08000,1),
536 			ERASEINFO(0x02000,2),
537 			ERASEINFO(0x04000,1),
538 		}
539 	}, {
540 		.mfr_id		= CFI_MFR_AMD,
541 		.dev_id		= AM29SL800DT,
542 		.name		= "AMD AM29SL800DT",
543 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
544 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
545 		.dev_size	= SIZE_1MiB,
546 		.cmd_set	= P_ID_AMD_STD,
547 		.nr_regions	= 4,
548 		.regions	= {
549 			ERASEINFO(0x10000,15),
550 			ERASEINFO(0x08000,1),
551 			ERASEINFO(0x02000,2),
552 			ERASEINFO(0x04000,1),
553 		}
554 	}, {
555 		.mfr_id		= CFI_MFR_AMD,
556 		.dev_id		= AM29SL800DB,
557 		.name		= "AMD AM29SL800DB",
558 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
559 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
560 		.dev_size	= SIZE_1MiB,
561 		.cmd_set	= P_ID_AMD_STD,
562 		.nr_regions	= 4,
563 		.regions	= {
564 			ERASEINFO(0x04000,1),
565 			ERASEINFO(0x02000,2),
566 			ERASEINFO(0x08000,1),
567 			ERASEINFO(0x10000,15),
568 		}
569 	}, {
570 		.mfr_id		= CFI_MFR_ATMEL,
571 		.dev_id		= AT49BV512,
572 		.name		= "Atmel AT49BV512",
573 		.devtypes	= CFI_DEVICETYPE_X8,
574 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
575 		.dev_size	= SIZE_64KiB,
576 		.cmd_set	= P_ID_AMD_STD,
577 		.nr_regions	= 1,
578 		.regions	= {
579 			ERASEINFO(0x10000,1)
580 		}
581 	}, {
582 		.mfr_id		= CFI_MFR_ATMEL,
583 		.dev_id		= AT29LV512,
584 		.name		= "Atmel AT29LV512",
585 		.devtypes	= CFI_DEVICETYPE_X8,
586 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
587 		.dev_size	= SIZE_64KiB,
588 		.cmd_set	= P_ID_AMD_STD,
589 		.nr_regions	= 1,
590 		.regions	= {
591 			ERASEINFO(0x80,256),
592 			ERASEINFO(0x80,256)
593 		}
594 	}, {
595 		.mfr_id		= CFI_MFR_ATMEL,
596 		.dev_id		= AT49BV16X,
597 		.name		= "Atmel AT49BV16X",
598 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
599 		.uaddr		= MTD_UADDR_0x0555_0x0AAA,	/* ???? */
600 		.dev_size	= SIZE_2MiB,
601 		.cmd_set	= P_ID_AMD_STD,
602 		.nr_regions	= 2,
603 		.regions	= {
604 			ERASEINFO(0x02000,8),
605 			ERASEINFO(0x10000,31)
606 		}
607 	}, {
608 		.mfr_id		= CFI_MFR_ATMEL,
609 		.dev_id		= AT49BV16XT,
610 		.name		= "Atmel AT49BV16XT",
611 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
612 		.uaddr		= MTD_UADDR_0x0555_0x0AAA,	/* ???? */
613 		.dev_size	= SIZE_2MiB,
614 		.cmd_set	= P_ID_AMD_STD,
615 		.nr_regions	= 2,
616 		.regions	= {
617 			ERASEINFO(0x10000,31),
618 			ERASEINFO(0x02000,8)
619 		}
620 	}, {
621 		.mfr_id		= CFI_MFR_ATMEL,
622 		.dev_id		= AT49BV32X,
623 		.name		= "Atmel AT49BV32X",
624 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
625 		.uaddr		= MTD_UADDR_0x0555_0x0AAA,	/* ???? */
626 		.dev_size	= SIZE_4MiB,
627 		.cmd_set	= P_ID_AMD_STD,
628 		.nr_regions	= 2,
629 		.regions	= {
630 			ERASEINFO(0x02000,8),
631 			ERASEINFO(0x10000,63)
632 		}
633 	}, {
634 		.mfr_id		= CFI_MFR_ATMEL,
635 		.dev_id		= AT49BV32XT,
636 		.name		= "Atmel AT49BV32XT",
637 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
638 		.uaddr		= MTD_UADDR_0x0555_0x0AAA,	/* ???? */
639 		.dev_size	= SIZE_4MiB,
640 		.cmd_set	= P_ID_AMD_STD,
641 		.nr_regions	= 2,
642 		.regions	= {
643 			ERASEINFO(0x10000,63),
644 			ERASEINFO(0x02000,8)
645 		}
646 	}, {
647 		.mfr_id		= CFI_MFR_EON,
648 		.dev_id		= EN29LV400AT,
649 		.name		= "Eon EN29LV400AT",
650 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
651 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
652 		.dev_size	= SIZE_512KiB,
653 		.cmd_set	= P_ID_AMD_STD,
654 		.nr_regions	= 4,
655 		.regions	= {
656 			ERASEINFO(0x10000,7),
657 			ERASEINFO(0x08000,1),
658 			ERASEINFO(0x02000,2),
659 			ERASEINFO(0x04000,1),
660 		}
661 	}, {
662 		.mfr_id		= CFI_MFR_EON,
663 		.dev_id		= EN29LV400AB,
664 		.name		= "Eon EN29LV400AB",
665 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
666 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
667 		.dev_size	= SIZE_512KiB,
668 		.cmd_set	= P_ID_AMD_STD,
669 		.nr_regions	= 4,
670 		.regions	= {
671 			ERASEINFO(0x04000,1),
672 			ERASEINFO(0x02000,2),
673 			ERASEINFO(0x08000,1),
674 			ERASEINFO(0x10000,7),
675 		}
676 	}, {
677 		.mfr_id		= CFI_MFR_EON,
678 		.dev_id		= EN29SL800BT,
679 		.name		= "Eon EN29SL800BT",
680 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
681 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
682 		.dev_size	= SIZE_1MiB,
683 		.cmd_set	= P_ID_AMD_STD,
684 		.nr_regions	= 4,
685 		.regions	= {
686 			ERASEINFO(0x10000,15),
687 			ERASEINFO(0x08000,1),
688 			ERASEINFO(0x02000,2),
689 			ERASEINFO(0x04000,1),
690 		}
691 	}, {
692 		.mfr_id		= CFI_MFR_EON,
693 		.dev_id		= EN29SL800BB,
694 		.name		= "Eon EN29SL800BB",
695 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
696 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
697 		.dev_size	= SIZE_1MiB,
698 		.cmd_set	= P_ID_AMD_STD,
699 		.nr_regions	= 4,
700 		.regions	= {
701 			ERASEINFO(0x04000,1),
702 			ERASEINFO(0x02000,2),
703 			ERASEINFO(0x08000,1),
704 			ERASEINFO(0x10000,15),
705 		}
706 	}, {
707 		.mfr_id		= CFI_MFR_FUJITSU,
708 		.dev_id		= MBM29F040C,
709 		.name		= "Fujitsu MBM29F040C",
710 		.devtypes	= CFI_DEVICETYPE_X8,
711 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
712 		.dev_size	= SIZE_512KiB,
713 		.cmd_set	= P_ID_AMD_STD,
714 		.nr_regions	= 1,
715 		.regions	= {
716 			ERASEINFO(0x10000,8)
717 		}
718 	}, {
719 		.mfr_id		= CFI_MFR_FUJITSU,
720 		.dev_id		= MBM29F800BA,
721 		.name		= "Fujitsu MBM29F800BA",
722 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
723 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
724 		.dev_size	= SIZE_1MiB,
725 		.cmd_set	= P_ID_AMD_STD,
726 		.nr_regions	= 4,
727 		.regions	= {
728 			ERASEINFO(0x04000,1),
729 			ERASEINFO(0x02000,2),
730 			ERASEINFO(0x08000,1),
731 			ERASEINFO(0x10000,15),
732 		}
733 	}, {
734 		.mfr_id		= CFI_MFR_FUJITSU,
735 		.dev_id		= MBM29LV650UE,
736 		.name		= "Fujitsu MBM29LV650UE",
737 		.devtypes	= CFI_DEVICETYPE_X8,
738 		.uaddr		= MTD_UADDR_DONT_CARE,
739 		.dev_size	= SIZE_8MiB,
740 		.cmd_set	= P_ID_AMD_STD,
741 		.nr_regions	= 1,
742 		.regions	= {
743 			ERASEINFO(0x10000,128)
744 		}
745 	}, {
746 		.mfr_id		= CFI_MFR_FUJITSU,
747 		.dev_id		= MBM29LV320TE,
748 		.name		= "Fujitsu MBM29LV320TE",
749 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
750 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
751 		.dev_size	= SIZE_4MiB,
752 		.cmd_set	= P_ID_AMD_STD,
753 		.nr_regions	= 2,
754 		.regions	= {
755 			ERASEINFO(0x10000,63),
756 			ERASEINFO(0x02000,8)
757 		}
758 	}, {
759 		.mfr_id		= CFI_MFR_FUJITSU,
760 		.dev_id		= MBM29LV320BE,
761 		.name		= "Fujitsu MBM29LV320BE",
762 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
763 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
764 		.dev_size	= SIZE_4MiB,
765 		.cmd_set	= P_ID_AMD_STD,
766 		.nr_regions	= 2,
767 		.regions	= {
768 			ERASEINFO(0x02000,8),
769 			ERASEINFO(0x10000,63)
770 		}
771 	}, {
772 		.mfr_id		= CFI_MFR_FUJITSU,
773 		.dev_id		= MBM29LV160TE,
774 		.name		= "Fujitsu MBM29LV160TE",
775 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
776 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
777 		.dev_size	= SIZE_2MiB,
778 		.cmd_set	= P_ID_AMD_STD,
779 		.nr_regions	= 4,
780 		.regions	= {
781 			ERASEINFO(0x10000,31),
782 			ERASEINFO(0x08000,1),
783 			ERASEINFO(0x02000,2),
784 			ERASEINFO(0x04000,1)
785 		}
786 	}, {
787 		.mfr_id		= CFI_MFR_FUJITSU,
788 		.dev_id		= MBM29LV160BE,
789 		.name		= "Fujitsu MBM29LV160BE",
790 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
791 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
792 		.dev_size	= SIZE_2MiB,
793 		.cmd_set	= P_ID_AMD_STD,
794 		.nr_regions	= 4,
795 		.regions	= {
796 			ERASEINFO(0x04000,1),
797 			ERASEINFO(0x02000,2),
798 			ERASEINFO(0x08000,1),
799 			ERASEINFO(0x10000,31)
800 		}
801 	}, {
802 		.mfr_id		= CFI_MFR_FUJITSU,
803 		.dev_id		= MBM29LV800BA,
804 		.name		= "Fujitsu MBM29LV800BA",
805 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
806 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
807 		.dev_size	= SIZE_1MiB,
808 		.cmd_set	= P_ID_AMD_STD,
809 		.nr_regions	= 4,
810 		.regions	= {
811 			ERASEINFO(0x04000,1),
812 			ERASEINFO(0x02000,2),
813 			ERASEINFO(0x08000,1),
814 			ERASEINFO(0x10000,15)
815 		}
816 	}, {
817 		.mfr_id		= CFI_MFR_FUJITSU,
818 		.dev_id		= MBM29LV800TA,
819 		.name		= "Fujitsu MBM29LV800TA",
820 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
821 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
822 		.dev_size	= SIZE_1MiB,
823 		.cmd_set	= P_ID_AMD_STD,
824 		.nr_regions	= 4,
825 		.regions	= {
826 			ERASEINFO(0x10000,15),
827 			ERASEINFO(0x08000,1),
828 			ERASEINFO(0x02000,2),
829 			ERASEINFO(0x04000,1)
830 		}
831 	}, {
832 		.mfr_id		= CFI_MFR_FUJITSU,
833 		.dev_id		= MBM29LV400BC,
834 		.name		= "Fujitsu MBM29LV400BC",
835 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
836 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
837 		.dev_size	= SIZE_512KiB,
838 		.cmd_set	= P_ID_AMD_STD,
839 		.nr_regions	= 4,
840 		.regions	= {
841 			ERASEINFO(0x04000,1),
842 			ERASEINFO(0x02000,2),
843 			ERASEINFO(0x08000,1),
844 			ERASEINFO(0x10000,7)
845 		}
846 	}, {
847 		.mfr_id		= CFI_MFR_FUJITSU,
848 		.dev_id		= MBM29LV400TC,
849 		.name		= "Fujitsu MBM29LV400TC",
850 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
851 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
852 		.dev_size	= SIZE_512KiB,
853 		.cmd_set	= P_ID_AMD_STD,
854 		.nr_regions	= 4,
855 		.regions	= {
856 			ERASEINFO(0x10000,7),
857 			ERASEINFO(0x08000,1),
858 			ERASEINFO(0x02000,2),
859 			ERASEINFO(0x04000,1)
860 		}
861 	}, {
862 		.mfr_id		= CFI_MFR_HYUNDAI,
863 		.dev_id		= HY29F002T,
864 		.name		= "Hyundai HY29F002T",
865 		.devtypes	= CFI_DEVICETYPE_X8,
866 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
867 		.dev_size	= SIZE_256KiB,
868 		.cmd_set	= P_ID_AMD_STD,
869 		.nr_regions	= 4,
870 		.regions	= {
871 			ERASEINFO(0x10000,3),
872 			ERASEINFO(0x08000,1),
873 			ERASEINFO(0x02000,2),
874 			ERASEINFO(0x04000,1),
875 		}
876 	}, {
877 		.mfr_id		= CFI_MFR_INTEL,
878 		.dev_id		= I28F004B3B,
879 		.name		= "Intel 28F004B3B",
880 		.devtypes	= CFI_DEVICETYPE_X8,
881 		.uaddr		= MTD_UADDR_UNNECESSARY,
882 		.dev_size	= SIZE_512KiB,
883 		.cmd_set	= P_ID_INTEL_STD,
884 		.nr_regions	= 2,
885 		.regions	= {
886 			ERASEINFO(0x02000, 8),
887 			ERASEINFO(0x10000, 7),
888 		}
889 	}, {
890 		.mfr_id		= CFI_MFR_INTEL,
891 		.dev_id		= I28F004B3T,
892 		.name		= "Intel 28F004B3T",
893 		.devtypes	= CFI_DEVICETYPE_X8,
894 		.uaddr		= MTD_UADDR_UNNECESSARY,
895 		.dev_size	= SIZE_512KiB,
896 		.cmd_set	= P_ID_INTEL_STD,
897 		.nr_regions	= 2,
898 		.regions	= {
899 			ERASEINFO(0x10000, 7),
900 			ERASEINFO(0x02000, 8),
901 		}
902 	}, {
903 		.mfr_id		= CFI_MFR_INTEL,
904 		.dev_id		= I28F400B3B,
905 		.name		= "Intel 28F400B3B",
906 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
907 		.uaddr		= MTD_UADDR_UNNECESSARY,
908 		.dev_size	= SIZE_512KiB,
909 		.cmd_set	= P_ID_INTEL_STD,
910 		.nr_regions	= 2,
911 		.regions	= {
912 			ERASEINFO(0x02000, 8),
913 			ERASEINFO(0x10000, 7),
914 		}
915 	}, {
916 		.mfr_id		= CFI_MFR_INTEL,
917 		.dev_id		= I28F400B3T,
918 		.name		= "Intel 28F400B3T",
919 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
920 		.uaddr		= MTD_UADDR_UNNECESSARY,
921 		.dev_size	= SIZE_512KiB,
922 		.cmd_set	= P_ID_INTEL_STD,
923 		.nr_regions	= 2,
924 		.regions	= {
925 			ERASEINFO(0x10000, 7),
926 			ERASEINFO(0x02000, 8),
927 		}
928 	}, {
929 		.mfr_id		= CFI_MFR_INTEL,
930 		.dev_id		= I28F008B3B,
931 		.name		= "Intel 28F008B3B",
932 		.devtypes	= CFI_DEVICETYPE_X8,
933 		.uaddr		= MTD_UADDR_UNNECESSARY,
934 		.dev_size	= SIZE_1MiB,
935 		.cmd_set	= P_ID_INTEL_STD,
936 		.nr_regions	= 2,
937 		.regions	= {
938 			ERASEINFO(0x02000, 8),
939 			ERASEINFO(0x10000, 15),
940 		}
941 	}, {
942 		.mfr_id		= CFI_MFR_INTEL,
943 		.dev_id		= I28F008B3T,
944 		.name		= "Intel 28F008B3T",
945 		.devtypes	= CFI_DEVICETYPE_X8,
946 		.uaddr		= MTD_UADDR_UNNECESSARY,
947 		.dev_size	= SIZE_1MiB,
948 		.cmd_set	= P_ID_INTEL_STD,
949 		.nr_regions	= 2,
950 		.regions	= {
951 			ERASEINFO(0x10000, 15),
952 			ERASEINFO(0x02000, 8),
953 		}
954 	}, {
955 		.mfr_id		= CFI_MFR_INTEL,
956 		.dev_id		= I28F008S5,
957 		.name		= "Intel 28F008S5",
958 		.devtypes	= CFI_DEVICETYPE_X8,
959 		.uaddr		= MTD_UADDR_UNNECESSARY,
960 		.dev_size	= SIZE_1MiB,
961 		.cmd_set	= P_ID_INTEL_EXT,
962 		.nr_regions	= 1,
963 		.regions	= {
964 			ERASEINFO(0x10000,16),
965 		}
966 	}, {
967 		.mfr_id		= CFI_MFR_INTEL,
968 		.dev_id		= I28F016S5,
969 		.name		= "Intel 28F016S5",
970 		.devtypes	= CFI_DEVICETYPE_X8,
971 		.uaddr		= MTD_UADDR_UNNECESSARY,
972 		.dev_size	= SIZE_2MiB,
973 		.cmd_set	= P_ID_INTEL_EXT,
974 		.nr_regions	= 1,
975 		.regions	= {
976 			ERASEINFO(0x10000,32),
977 		}
978 	}, {
979 		.mfr_id		= CFI_MFR_INTEL,
980 		.dev_id		= I28F008SA,
981 		.name		= "Intel 28F008SA",
982 		.devtypes	= CFI_DEVICETYPE_X8,
983 		.uaddr		= MTD_UADDR_UNNECESSARY,
984 		.dev_size	= SIZE_1MiB,
985 		.cmd_set	= P_ID_INTEL_STD,
986 		.nr_regions	= 1,
987 		.regions	= {
988 			ERASEINFO(0x10000, 16),
989 		}
990 	}, {
991 		.mfr_id		= CFI_MFR_INTEL,
992 		.dev_id		= I28F800B3B,
993 		.name		= "Intel 28F800B3B",
994 		.devtypes	= CFI_DEVICETYPE_X16,
995 		.uaddr		= MTD_UADDR_UNNECESSARY,
996 		.dev_size	= SIZE_1MiB,
997 		.cmd_set	= P_ID_INTEL_STD,
998 		.nr_regions	= 2,
999 		.regions	= {
1000 			ERASEINFO(0x02000, 8),
1001 			ERASEINFO(0x10000, 15),
1002 		}
1003 	}, {
1004 		.mfr_id		= CFI_MFR_INTEL,
1005 		.dev_id		= I28F800B3T,
1006 		.name		= "Intel 28F800B3T",
1007 		.devtypes	= CFI_DEVICETYPE_X16,
1008 		.uaddr		= MTD_UADDR_UNNECESSARY,
1009 		.dev_size	= SIZE_1MiB,
1010 		.cmd_set	= P_ID_INTEL_STD,
1011 		.nr_regions	= 2,
1012 		.regions	= {
1013 			ERASEINFO(0x10000, 15),
1014 			ERASEINFO(0x02000, 8),
1015 		}
1016 	}, {
1017 		.mfr_id		= CFI_MFR_INTEL,
1018 		.dev_id		= I28F016B3B,
1019 		.name		= "Intel 28F016B3B",
1020 		.devtypes	= CFI_DEVICETYPE_X8,
1021 		.uaddr		= MTD_UADDR_UNNECESSARY,
1022 		.dev_size	= SIZE_2MiB,
1023 		.cmd_set	= P_ID_INTEL_STD,
1024 		.nr_regions	= 2,
1025 		.regions	= {
1026 			ERASEINFO(0x02000, 8),
1027 			ERASEINFO(0x10000, 31),
1028 		}
1029 	}, {
1030 		.mfr_id		= CFI_MFR_INTEL,
1031 		.dev_id		= I28F016S3,
1032 		.name		= "Intel I28F016S3",
1033 		.devtypes	= CFI_DEVICETYPE_X8,
1034 		.uaddr		= MTD_UADDR_UNNECESSARY,
1035 		.dev_size	= SIZE_2MiB,
1036 		.cmd_set	= P_ID_INTEL_STD,
1037 		.nr_regions	= 1,
1038 		.regions	= {
1039 			ERASEINFO(0x10000, 32),
1040 		}
1041 	}, {
1042 		.mfr_id		= CFI_MFR_INTEL,
1043 		.dev_id		= I28F016B3T,
1044 		.name		= "Intel 28F016B3T",
1045 		.devtypes	= CFI_DEVICETYPE_X8,
1046 		.uaddr		= MTD_UADDR_UNNECESSARY,
1047 		.dev_size	= SIZE_2MiB,
1048 		.cmd_set	= P_ID_INTEL_STD,
1049 		.nr_regions	= 2,
1050 		.regions	= {
1051 			ERASEINFO(0x10000, 31),
1052 			ERASEINFO(0x02000, 8),
1053 		}
1054 	}, {
1055 		.mfr_id		= CFI_MFR_INTEL,
1056 		.dev_id		= I28F160B3B,
1057 		.name		= "Intel 28F160B3B",
1058 		.devtypes	= CFI_DEVICETYPE_X16,
1059 		.uaddr		= MTD_UADDR_UNNECESSARY,
1060 		.dev_size	= SIZE_2MiB,
1061 		.cmd_set	= P_ID_INTEL_STD,
1062 		.nr_regions	= 2,
1063 		.regions	= {
1064 			ERASEINFO(0x02000, 8),
1065 			ERASEINFO(0x10000, 31),
1066 		}
1067 	}, {
1068 		.mfr_id		= CFI_MFR_INTEL,
1069 		.dev_id		= I28F160B3T,
1070 		.name		= "Intel 28F160B3T",
1071 		.devtypes	= CFI_DEVICETYPE_X16,
1072 		.uaddr		= MTD_UADDR_UNNECESSARY,
1073 		.dev_size	= SIZE_2MiB,
1074 		.cmd_set	= P_ID_INTEL_STD,
1075 		.nr_regions	= 2,
1076 		.regions	= {
1077 			ERASEINFO(0x10000, 31),
1078 			ERASEINFO(0x02000, 8),
1079 		}
1080 	}, {
1081 		.mfr_id		= CFI_MFR_INTEL,
1082 		.dev_id		= I28F320B3B,
1083 		.name		= "Intel 28F320B3B",
1084 		.devtypes	= CFI_DEVICETYPE_X16,
1085 		.uaddr		= MTD_UADDR_UNNECESSARY,
1086 		.dev_size	= SIZE_4MiB,
1087 		.cmd_set	= P_ID_INTEL_STD,
1088 		.nr_regions	= 2,
1089 		.regions	= {
1090 			ERASEINFO(0x02000, 8),
1091 			ERASEINFO(0x10000, 63),
1092 		}
1093 	}, {
1094 		.mfr_id		= CFI_MFR_INTEL,
1095 		.dev_id		= I28F320B3T,
1096 		.name		= "Intel 28F320B3T",
1097 		.devtypes	= CFI_DEVICETYPE_X16,
1098 		.uaddr		= MTD_UADDR_UNNECESSARY,
1099 		.dev_size	= SIZE_4MiB,
1100 		.cmd_set	= P_ID_INTEL_STD,
1101 		.nr_regions	= 2,
1102 		.regions	= {
1103 			ERASEINFO(0x10000, 63),
1104 			ERASEINFO(0x02000, 8),
1105 		}
1106 	}, {
1107 		.mfr_id		= CFI_MFR_INTEL,
1108 		.dev_id		= I28F640B3B,
1109 		.name		= "Intel 28F640B3B",
1110 		.devtypes	= CFI_DEVICETYPE_X16,
1111 		.uaddr		= MTD_UADDR_UNNECESSARY,
1112 		.dev_size	= SIZE_8MiB,
1113 		.cmd_set	= P_ID_INTEL_STD,
1114 		.nr_regions	= 2,
1115 		.regions	= {
1116 			ERASEINFO(0x02000, 8),
1117 			ERASEINFO(0x10000, 127),
1118 		}
1119 	}, {
1120 		.mfr_id		= CFI_MFR_INTEL,
1121 		.dev_id		= I28F640B3T,
1122 		.name		= "Intel 28F640B3T",
1123 		.devtypes	= CFI_DEVICETYPE_X16,
1124 		.uaddr		= MTD_UADDR_UNNECESSARY,
1125 		.dev_size	= SIZE_8MiB,
1126 		.cmd_set	= P_ID_INTEL_STD,
1127 		.nr_regions	= 2,
1128 		.regions	= {
1129 			ERASEINFO(0x10000, 127),
1130 			ERASEINFO(0x02000, 8),
1131 		}
1132 	}, {
1133 		.mfr_id		= CFI_MFR_INTEL,
1134 		.dev_id		= I28F640C3B,
1135 		.name		= "Intel 28F640C3B",
1136 		.devtypes	= CFI_DEVICETYPE_X16,
1137 		.uaddr		= MTD_UADDR_UNNECESSARY,
1138 		.dev_size	= SIZE_8MiB,
1139 		.cmd_set	= P_ID_INTEL_STD,
1140 		.nr_regions	= 2,
1141 		.regions	= {
1142 			ERASEINFO(0x02000, 8),
1143 			ERASEINFO(0x10000, 127),
1144 		}
1145 	}, {
1146 		.mfr_id		= CFI_MFR_INTEL,
1147 		.dev_id		= I82802AB,
1148 		.name		= "Intel 82802AB",
1149 		.devtypes	= CFI_DEVICETYPE_X8,
1150 		.uaddr		= MTD_UADDR_UNNECESSARY,
1151 		.dev_size	= SIZE_512KiB,
1152 		.cmd_set	= P_ID_INTEL_EXT,
1153 		.nr_regions	= 1,
1154 		.regions	= {
1155 			ERASEINFO(0x10000,8),
1156 		}
1157 	}, {
1158 		.mfr_id		= CFI_MFR_INTEL,
1159 		.dev_id		= I82802AC,
1160 		.name		= "Intel 82802AC",
1161 		.devtypes	= CFI_DEVICETYPE_X8,
1162 		.uaddr		= MTD_UADDR_UNNECESSARY,
1163 		.dev_size	= SIZE_1MiB,
1164 		.cmd_set	= P_ID_INTEL_EXT,
1165 		.nr_regions	= 1,
1166 		.regions	= {
1167 			ERASEINFO(0x10000,16),
1168 		}
1169 	}, {
1170 		.mfr_id		= CFI_MFR_MACRONIX,
1171 		.dev_id		= MX29LV040C,
1172 		.name		= "Macronix MX29LV040C",
1173 		.devtypes	= CFI_DEVICETYPE_X8,
1174 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1175 		.dev_size	= SIZE_512KiB,
1176 		.cmd_set	= P_ID_AMD_STD,
1177 		.nr_regions	= 1,
1178 		.regions	= {
1179 			ERASEINFO(0x10000,8),
1180 		}
1181 	}, {
1182 		.mfr_id		= CFI_MFR_MACRONIX,
1183 		.dev_id		= MX29LV160T,
1184 		.name		= "MXIC MX29LV160T",
1185 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1186 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1187 		.dev_size	= SIZE_2MiB,
1188 		.cmd_set	= P_ID_AMD_STD,
1189 		.nr_regions	= 4,
1190 		.regions	= {
1191 			ERASEINFO(0x10000,31),
1192 			ERASEINFO(0x08000,1),
1193 			ERASEINFO(0x02000,2),
1194 			ERASEINFO(0x04000,1)
1195 		}
1196 	}, {
1197 		.mfr_id		= CFI_MFR_NEC,
1198 		.dev_id		= UPD29F064115,
1199 		.name		= "NEC uPD29F064115",
1200 		.devtypes	= CFI_DEVICETYPE_X16,
1201 		.uaddr		= MTD_UADDR_0xAAAA_0x5555,
1202 		.dev_size	= SIZE_8MiB,
1203 		.cmd_set	= P_ID_AMD_STD,
1204 		.nr_regions	= 3,
1205 		.regions	= {
1206 			ERASEINFO(0x2000,8),
1207 			ERASEINFO(0x10000,126),
1208 			ERASEINFO(0x2000,8),
1209 		}
1210 	}, {
1211 		.mfr_id		= CFI_MFR_MACRONIX,
1212 		.dev_id		= MX29LV160B,
1213 		.name		= "MXIC MX29LV160B",
1214 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1215 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1216 		.dev_size	= SIZE_2MiB,
1217 		.cmd_set	= P_ID_AMD_STD,
1218 		.nr_regions	= 4,
1219 		.regions	= {
1220 			ERASEINFO(0x04000,1),
1221 			ERASEINFO(0x02000,2),
1222 			ERASEINFO(0x08000,1),
1223 			ERASEINFO(0x10000,31)
1224 		}
1225 	}, {
1226 		.mfr_id		= CFI_MFR_MACRONIX,
1227 		.dev_id		= MX29F040,
1228 		.name		= "Macronix MX29F040",
1229 		.devtypes	= CFI_DEVICETYPE_X8,
1230 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1231 		.dev_size	= SIZE_512KiB,
1232 		.cmd_set	= P_ID_AMD_STD,
1233 		.nr_regions	= 1,
1234 		.regions	= {
1235 			ERASEINFO(0x10000,8),
1236 		}
1237 	}, {
1238 		.mfr_id		= CFI_MFR_MACRONIX,
1239 		.dev_id		= MX29F016,
1240 		.name		= "Macronix MX29F016",
1241 		.devtypes	= CFI_DEVICETYPE_X8,
1242 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1243 		.dev_size	= SIZE_2MiB,
1244 		.cmd_set	= P_ID_AMD_STD,
1245 		.nr_regions	= 1,
1246 		.regions	= {
1247 			ERASEINFO(0x10000,32),
1248 		}
1249 	}, {
1250 		.mfr_id		= CFI_MFR_MACRONIX,
1251 		.dev_id		= MX29F004T,
1252 		.name		= "Macronix MX29F004T",
1253 		.devtypes	= CFI_DEVICETYPE_X8,
1254 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1255 		.dev_size	= SIZE_512KiB,
1256 		.cmd_set	= P_ID_AMD_STD,
1257 		.nr_regions	= 4,
1258 		.regions	= {
1259 			ERASEINFO(0x10000,7),
1260 			ERASEINFO(0x08000,1),
1261 			ERASEINFO(0x02000,2),
1262 			ERASEINFO(0x04000,1),
1263 		}
1264 	}, {
1265 		.mfr_id		= CFI_MFR_MACRONIX,
1266 		.dev_id		= MX29F004B,
1267 		.name		= "Macronix MX29F004B",
1268 		.devtypes	= CFI_DEVICETYPE_X8,
1269 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1270 		.dev_size	= SIZE_512KiB,
1271 		.cmd_set	= P_ID_AMD_STD,
1272 		.nr_regions	= 4,
1273 		.regions	= {
1274 			ERASEINFO(0x04000,1),
1275 			ERASEINFO(0x02000,2),
1276 			ERASEINFO(0x08000,1),
1277 			ERASEINFO(0x10000,7),
1278 		}
1279 	}, {
1280 		.mfr_id		= CFI_MFR_MACRONIX,
1281 		.dev_id		= MX29F002T,
1282 		.name		= "Macronix MX29F002T",
1283 		.devtypes	= CFI_DEVICETYPE_X8,
1284 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1285 		.dev_size	= SIZE_256KiB,
1286 		.cmd_set	= P_ID_AMD_STD,
1287 		.nr_regions	= 4,
1288 		.regions	= {
1289 			ERASEINFO(0x10000,3),
1290 			ERASEINFO(0x08000,1),
1291 			ERASEINFO(0x02000,2),
1292 			ERASEINFO(0x04000,1),
1293 		}
1294 	}, {
1295 		.mfr_id		= CFI_MFR_PMC,
1296 		.dev_id		= PM49FL002,
1297 		.name		= "PMC Pm49FL002",
1298 		.devtypes	= CFI_DEVICETYPE_X8,
1299 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1300 		.dev_size	= SIZE_256KiB,
1301 		.cmd_set	= P_ID_AMD_STD,
1302 		.nr_regions	= 1,
1303 		.regions	= {
1304 			ERASEINFO( 0x01000, 64 )
1305 		}
1306 	}, {
1307 		.mfr_id		= CFI_MFR_PMC,
1308 		.dev_id		= PM49FL004,
1309 		.name		= "PMC Pm49FL004",
1310 		.devtypes	= CFI_DEVICETYPE_X8,
1311 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1312 		.dev_size	= SIZE_512KiB,
1313 		.cmd_set	= P_ID_AMD_STD,
1314 		.nr_regions	= 1,
1315 		.regions	= {
1316 			ERASEINFO( 0x01000, 128 )
1317 		}
1318 	}, {
1319 		.mfr_id		= CFI_MFR_PMC,
1320 		.dev_id		= PM49FL008,
1321 		.name		= "PMC Pm49FL008",
1322 		.devtypes	= CFI_DEVICETYPE_X8,
1323 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1324 		.dev_size	= SIZE_1MiB,
1325 		.cmd_set	= P_ID_AMD_STD,
1326 		.nr_regions	= 1,
1327 		.regions	= {
1328 			ERASEINFO( 0x01000, 256 )
1329 		}
1330 	}, {
1331 		.mfr_id		= CFI_MFR_SHARP,
1332 		.dev_id		= LH28F640BF,
1333 		.name		= "LH28F640BF",
1334 		.devtypes	= CFI_DEVICETYPE_X16,
1335 		.uaddr		= MTD_UADDR_UNNECESSARY,
1336 		.dev_size	= SIZE_8MiB,
1337 		.cmd_set	= P_ID_INTEL_EXT,
1338 		.nr_regions	= 2,
1339 		.regions	= {
1340 			ERASEINFO(0x10000, 127),
1341 			ERASEINFO(0x02000, 8),
1342 		}
1343 	}, {
1344 		.mfr_id		= CFI_MFR_SST,
1345 		.dev_id		= SST39LF512,
1346 		.name		= "SST 39LF512",
1347 		.devtypes	= CFI_DEVICETYPE_X8,
1348 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1349 		.dev_size	= SIZE_64KiB,
1350 		.cmd_set	= P_ID_AMD_STD,
1351 		.nr_regions	= 1,
1352 		.regions	= {
1353 			ERASEINFO(0x01000,16),
1354 		}
1355 	}, {
1356 		.mfr_id		= CFI_MFR_SST,
1357 		.dev_id		= SST39LF010,
1358 		.name		= "SST 39LF010",
1359 		.devtypes	= CFI_DEVICETYPE_X8,
1360 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1361 		.dev_size	= SIZE_128KiB,
1362 		.cmd_set	= P_ID_AMD_STD,
1363 		.nr_regions	= 1,
1364 		.regions	= {
1365 			ERASEINFO(0x01000,32),
1366 		}
1367 	}, {
1368 		.mfr_id		= CFI_MFR_SST,
1369 		.dev_id		= SST29EE020,
1370 		.name		= "SST 29EE020",
1371 		.devtypes	= CFI_DEVICETYPE_X8,
1372 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1373 		.dev_size	= SIZE_256KiB,
1374 		.cmd_set	= P_ID_SST_PAGE,
1375 		.nr_regions	= 1,
1376 		.regions = {ERASEINFO(0x01000,64),
1377 		}
1378 	}, {
1379 		.mfr_id		= CFI_MFR_SST,
1380 		.dev_id		= SST29LE020,
1381 		.name		= "SST 29LE020",
1382 		.devtypes	= CFI_DEVICETYPE_X8,
1383 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1384 		.dev_size	= SIZE_256KiB,
1385 		.cmd_set	= P_ID_SST_PAGE,
1386 		.nr_regions	= 1,
1387 		.regions = {ERASEINFO(0x01000,64),
1388 		}
1389 	}, {
1390 		.mfr_id		= CFI_MFR_SST,
1391 		.dev_id		= SST39LF020,
1392 		.name		= "SST 39LF020",
1393 		.devtypes	= CFI_DEVICETYPE_X8,
1394 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1395 		.dev_size	= SIZE_256KiB,
1396 		.cmd_set	= P_ID_AMD_STD,
1397 		.nr_regions	= 1,
1398 		.regions	= {
1399 			ERASEINFO(0x01000,64),
1400 		}
1401 	}, {
1402 		.mfr_id		= CFI_MFR_SST,
1403 		.dev_id		= SST39LF040,
1404 		.name		= "SST 39LF040",
1405 		.devtypes	= CFI_DEVICETYPE_X8,
1406 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1407 		.dev_size	= SIZE_512KiB,
1408 		.cmd_set	= P_ID_AMD_STD,
1409 		.nr_regions	= 1,
1410 		.regions	= {
1411 			ERASEINFO(0x01000,128),
1412 		}
1413 	}, {
1414 		.mfr_id		= CFI_MFR_SST,
1415 		.dev_id		= SST39SF010A,
1416 		.name		= "SST 39SF010A",
1417 		.devtypes	= CFI_DEVICETYPE_X8,
1418 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1419 		.dev_size	= SIZE_128KiB,
1420 		.cmd_set	= P_ID_AMD_STD,
1421 		.nr_regions	= 1,
1422 		.regions	= {
1423 			ERASEINFO(0x01000,32),
1424 		}
1425 	}, {
1426 		.mfr_id		= CFI_MFR_SST,
1427 		.dev_id		= SST39SF020A,
1428 		.name		= "SST 39SF020A",
1429 		.devtypes	= CFI_DEVICETYPE_X8,
1430 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1431 		.dev_size	= SIZE_256KiB,
1432 		.cmd_set	= P_ID_AMD_STD,
1433 		.nr_regions	= 1,
1434 		.regions	= {
1435 			ERASEINFO(0x01000,64),
1436 		}
1437 	}, {
1438 		.mfr_id		= CFI_MFR_SST,
1439 		.dev_id		= SST39SF040,
1440 		.name		= "SST 39SF040",
1441 		.devtypes	= CFI_DEVICETYPE_X8,
1442 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1443 		.dev_size	= SIZE_512KiB,
1444 		.cmd_set	= P_ID_AMD_STD,
1445 		.nr_regions	= 1,
1446 		.regions	= {
1447 			ERASEINFO(0x01000,128),
1448 		}
1449 	}, {
1450 		.mfr_id		= CFI_MFR_SST,
1451 		.dev_id		= SST49LF040B,
1452 		.name		= "SST 49LF040B",
1453 		.devtypes	= CFI_DEVICETYPE_X8,
1454 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1455 		.dev_size	= SIZE_512KiB,
1456 		.cmd_set	= P_ID_AMD_STD,
1457 		.nr_regions	= 1,
1458 		.regions	= {
1459 			ERASEINFO(0x01000,128),
1460 		}
1461 	}, {
1462 
1463 		.mfr_id		= CFI_MFR_SST,
1464 		.dev_id		= SST49LF004B,
1465 		.name		= "SST 49LF004B",
1466 		.devtypes	= CFI_DEVICETYPE_X8,
1467 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1468 		.dev_size	= SIZE_512KiB,
1469 		.cmd_set	= P_ID_AMD_STD,
1470 		.nr_regions	= 1,
1471 		.regions	= {
1472 			ERASEINFO(0x01000,128),
1473 		}
1474 	}, {
1475 		.mfr_id		= CFI_MFR_SST,
1476 		.dev_id		= SST49LF008A,
1477 		.name		= "SST 49LF008A",
1478 		.devtypes	= CFI_DEVICETYPE_X8,
1479 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1480 		.dev_size	= SIZE_1MiB,
1481 		.cmd_set	= P_ID_AMD_STD,
1482 		.nr_regions	= 1,
1483 		.regions	= {
1484 			ERASEINFO(0x01000,256),
1485 		}
1486 	}, {
1487 		.mfr_id		= CFI_MFR_SST,
1488 		.dev_id		= SST49LF030A,
1489 		.name		= "SST 49LF030A",
1490 		.devtypes	= CFI_DEVICETYPE_X8,
1491 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1492 		.dev_size	= SIZE_512KiB,
1493 		.cmd_set	= P_ID_AMD_STD,
1494 		.nr_regions	= 1,
1495 		.regions	= {
1496 			ERASEINFO(0x01000,96),
1497 		}
1498 	}, {
1499 		.mfr_id		= CFI_MFR_SST,
1500 		.dev_id		= SST49LF040A,
1501 		.name		= "SST 49LF040A",
1502 		.devtypes	= CFI_DEVICETYPE_X8,
1503 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1504 		.dev_size	= SIZE_512KiB,
1505 		.cmd_set	= P_ID_AMD_STD,
1506 		.nr_regions	= 1,
1507 		.regions	= {
1508 			ERASEINFO(0x01000,128),
1509 		}
1510 	}, {
1511 		.mfr_id		= CFI_MFR_SST,
1512 		.dev_id		= SST49LF080A,
1513 		.name		= "SST 49LF080A",
1514 		.devtypes	= CFI_DEVICETYPE_X8,
1515 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1516 		.dev_size	= SIZE_1MiB,
1517 		.cmd_set	= P_ID_AMD_STD,
1518 		.nr_regions	= 1,
1519 		.regions	= {
1520 			ERASEINFO(0x01000,256),
1521 		}
1522 	}, {
1523 		.mfr_id		= CFI_MFR_SST,     /* should be CFI */
1524 		.dev_id		= SST39LF160,
1525 		.name		= "SST 39LF160",
1526 		.devtypes	= CFI_DEVICETYPE_X16,
1527 		.uaddr		= MTD_UADDR_0xAAAA_0x5555,
1528 		.dev_size	= SIZE_2MiB,
1529 		.cmd_set	= P_ID_AMD_STD,
1530 		.nr_regions	= 2,
1531 		.regions	= {
1532 			ERASEINFO(0x1000,256),
1533 			ERASEINFO(0x1000,256)
1534 		}
1535 	}, {
1536 		.mfr_id		= CFI_MFR_SST,     /* should be CFI */
1537 		.dev_id		= SST39VF1601,
1538 		.name		= "SST 39VF1601",
1539 		.devtypes	= CFI_DEVICETYPE_X16,
1540 		.uaddr		= MTD_UADDR_0xAAAA_0x5555,
1541 		.dev_size	= SIZE_2MiB,
1542 		.cmd_set	= P_ID_AMD_STD,
1543 		.nr_regions	= 2,
1544 		.regions	= {
1545 			ERASEINFO(0x1000,256),
1546 			ERASEINFO(0x1000,256)
1547 		}
1548 	}, {
1549 		/* CFI is broken: reports AMD_STD, but needs custom uaddr */
1550 		.mfr_id		= CFI_MFR_SST,
1551 		.dev_id		= SST39WF1601,
1552 		.name		= "SST 39WF1601",
1553 		.devtypes	= CFI_DEVICETYPE_X16,
1554 		.uaddr		= MTD_UADDR_0xAAAA_0x5555,
1555 		.dev_size	= SIZE_2MiB,
1556 		.cmd_set	= P_ID_AMD_STD,
1557 		.nr_regions	= 2,
1558 		.regions	= {
1559 			ERASEINFO(0x1000,256),
1560 			ERASEINFO(0x1000,256)
1561 		}
1562 	}, {
1563 		/* CFI is broken: reports AMD_STD, but needs custom uaddr */
1564 		.mfr_id		= CFI_MFR_SST,
1565 		.dev_id		= SST39WF1602,
1566 		.name		= "SST 39WF1602",
1567 		.devtypes	= CFI_DEVICETYPE_X16,
1568 		.uaddr		= MTD_UADDR_0xAAAA_0x5555,
1569 		.dev_size	= SIZE_2MiB,
1570 		.cmd_set	= P_ID_AMD_STD,
1571 		.nr_regions	= 2,
1572 		.regions	= {
1573 			ERASEINFO(0x1000,256),
1574 			ERASEINFO(0x1000,256)
1575 		}
1576 	}, {
1577 		.mfr_id		= CFI_MFR_SST,     /* should be CFI */
1578 		.dev_id		= SST39VF3201,
1579 		.name		= "SST 39VF3201",
1580 		.devtypes	= CFI_DEVICETYPE_X16,
1581 		.uaddr		= MTD_UADDR_0xAAAA_0x5555,
1582 		.dev_size	= SIZE_4MiB,
1583 		.cmd_set	= P_ID_AMD_STD,
1584 		.nr_regions	= 4,
1585 		.regions	= {
1586 			ERASEINFO(0x1000,256),
1587 			ERASEINFO(0x1000,256),
1588 			ERASEINFO(0x1000,256),
1589 			ERASEINFO(0x1000,256)
1590 		}
1591 	}, {
1592 		.mfr_id		= CFI_MFR_SST,
1593 		.dev_id		= SST36VF3203,
1594 		.name		= "SST 36VF3203",
1595 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1596 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1597 		.dev_size	= SIZE_4MiB,
1598 		.cmd_set	= P_ID_AMD_STD,
1599 		.nr_regions	= 1,
1600 		.regions	= {
1601 			ERASEINFO(0x10000,64),
1602 		}
1603 	}, {
1604 		.mfr_id		= CFI_MFR_ST,
1605 		.dev_id		= M29F800AB,
1606 		.name		= "ST M29F800AB",
1607 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1608 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1609 		.dev_size	= SIZE_1MiB,
1610 		.cmd_set	= P_ID_AMD_STD,
1611 		.nr_regions	= 4,
1612 		.regions	= {
1613 			ERASEINFO(0x04000,1),
1614 			ERASEINFO(0x02000,2),
1615 			ERASEINFO(0x08000,1),
1616 			ERASEINFO(0x10000,15),
1617 		}
1618 	}, {
1619 		.mfr_id		= CFI_MFR_ST,	/* FIXME - CFI device? */
1620 		.dev_id		= M29W800DT,
1621 		.name		= "ST M29W800DT",
1622 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1623 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1624 		.dev_size	= SIZE_1MiB,
1625 		.cmd_set	= P_ID_AMD_STD,
1626 		.nr_regions	= 4,
1627 		.regions	= {
1628 			ERASEINFO(0x10000,15),
1629 			ERASEINFO(0x08000,1),
1630 			ERASEINFO(0x02000,2),
1631 			ERASEINFO(0x04000,1)
1632 		}
1633 	}, {
1634 		.mfr_id		= CFI_MFR_ST,	/* FIXME - CFI device? */
1635 		.dev_id		= M29W800DB,
1636 		.name		= "ST M29W800DB",
1637 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1638 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1639 		.dev_size	= SIZE_1MiB,
1640 		.cmd_set	= P_ID_AMD_STD,
1641 		.nr_regions	= 4,
1642 		.regions	= {
1643 			ERASEINFO(0x04000,1),
1644 			ERASEINFO(0x02000,2),
1645 			ERASEINFO(0x08000,1),
1646 			ERASEINFO(0x10000,15)
1647 		}
1648 	},  {
1649 		.mfr_id         = CFI_MFR_ST,
1650 		.dev_id         = M29W400DT,
1651 		.name           = "ST M29W400DT",
1652 		.devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1653 		.uaddr          = MTD_UADDR_0x0AAA_0x0555,
1654 		.dev_size       = SIZE_512KiB,
1655 		.cmd_set        = P_ID_AMD_STD,
1656 		.nr_regions     = 4,
1657 		.regions        = {
1658 			ERASEINFO(0x04000,7),
1659 			ERASEINFO(0x02000,1),
1660 			ERASEINFO(0x08000,2),
1661 			ERASEINFO(0x10000,1)
1662 		}
1663 	}, {
1664 		.mfr_id         = CFI_MFR_ST,
1665 		.dev_id         = M29W400DB,
1666 		.name           = "ST M29W400DB",
1667 		.devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1668 		.uaddr          = MTD_UADDR_0x0AAA_0x0555,
1669 		.dev_size       = SIZE_512KiB,
1670 		.cmd_set        = P_ID_AMD_STD,
1671 		.nr_regions     = 4,
1672 		.regions        = {
1673 			ERASEINFO(0x04000,1),
1674 			ERASEINFO(0x02000,2),
1675 			ERASEINFO(0x08000,1),
1676 			ERASEINFO(0x10000,7)
1677 		}
1678 	}, {
1679 		.mfr_id		= CFI_MFR_ST,	/* FIXME - CFI device? */
1680 		.dev_id		= M29W160DT,
1681 		.name		= "ST M29W160DT",
1682 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1683 		.uaddr		= MTD_UADDR_0x0555_0x02AA,	/* ???? */
1684 		.dev_size	= SIZE_2MiB,
1685 		.cmd_set	= P_ID_AMD_STD,
1686 		.nr_regions	= 4,
1687 		.regions	= {
1688 			ERASEINFO(0x10000,31),
1689 			ERASEINFO(0x08000,1),
1690 			ERASEINFO(0x02000,2),
1691 			ERASEINFO(0x04000,1)
1692 		}
1693 	}, {
1694 		.mfr_id		= CFI_MFR_ST,	/* FIXME - CFI device? */
1695 		.dev_id		= M29W160DB,
1696 		.name		= "ST M29W160DB",
1697 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1698 		.uaddr		= MTD_UADDR_0x0555_0x02AA,	/* ???? */
1699 		.dev_size	= SIZE_2MiB,
1700 		.cmd_set	= P_ID_AMD_STD,
1701 		.nr_regions	= 4,
1702 		.regions	= {
1703 			ERASEINFO(0x04000,1),
1704 			ERASEINFO(0x02000,2),
1705 			ERASEINFO(0x08000,1),
1706 			ERASEINFO(0x10000,31)
1707 		}
1708 	}, {
1709 		.mfr_id		= CFI_MFR_ST,
1710 		.dev_id		= M29W040B,
1711 		.name		= "ST M29W040B",
1712 		.devtypes	= CFI_DEVICETYPE_X8,
1713 		.uaddr		= MTD_UADDR_0x0555_0x02AA,
1714 		.dev_size	= SIZE_512KiB,
1715 		.cmd_set	= P_ID_AMD_STD,
1716 		.nr_regions	= 1,
1717 		.regions	= {
1718 			ERASEINFO(0x10000,8),
1719 		}
1720 	}, {
1721 		.mfr_id		= CFI_MFR_ST,
1722 		.dev_id		= M50FW040,
1723 		.name		= "ST M50FW040",
1724 		.devtypes	= CFI_DEVICETYPE_X8,
1725 		.uaddr		= MTD_UADDR_UNNECESSARY,
1726 		.dev_size	= SIZE_512KiB,
1727 		.cmd_set	= P_ID_INTEL_EXT,
1728 		.nr_regions	= 1,
1729 		.regions	= {
1730 			ERASEINFO(0x10000,8),
1731 		}
1732 	}, {
1733 		.mfr_id		= CFI_MFR_ST,
1734 		.dev_id		= M50FW080,
1735 		.name		= "ST M50FW080",
1736 		.devtypes	= CFI_DEVICETYPE_X8,
1737 		.uaddr		= MTD_UADDR_UNNECESSARY,
1738 		.dev_size	= SIZE_1MiB,
1739 		.cmd_set	= P_ID_INTEL_EXT,
1740 		.nr_regions	= 1,
1741 		.regions	= {
1742 			ERASEINFO(0x10000,16),
1743 		}
1744 	}, {
1745 		.mfr_id		= CFI_MFR_ST,
1746 		.dev_id		= M50FW016,
1747 		.name		= "ST M50FW016",
1748 		.devtypes	= CFI_DEVICETYPE_X8,
1749 		.uaddr		= MTD_UADDR_UNNECESSARY,
1750 		.dev_size	= SIZE_2MiB,
1751 		.cmd_set	= P_ID_INTEL_EXT,
1752 		.nr_regions	= 1,
1753 		.regions	= {
1754 			ERASEINFO(0x10000,32),
1755 		}
1756 	}, {
1757 		.mfr_id		= CFI_MFR_ST,
1758 		.dev_id		= M50LPW080,
1759 		.name		= "ST M50LPW080",
1760 		.devtypes	= CFI_DEVICETYPE_X8,
1761 		.uaddr		= MTD_UADDR_UNNECESSARY,
1762 		.dev_size	= SIZE_1MiB,
1763 		.cmd_set	= P_ID_INTEL_EXT,
1764 		.nr_regions	= 1,
1765 		.regions	= {
1766 			ERASEINFO(0x10000,16),
1767 		},
1768 	}, {
1769 		.mfr_id		= CFI_MFR_ST,
1770 		.dev_id		= M50FLW080A,
1771 		.name		= "ST M50FLW080A",
1772 		.devtypes	= CFI_DEVICETYPE_X8,
1773 		.uaddr		= MTD_UADDR_UNNECESSARY,
1774 		.dev_size	= SIZE_1MiB,
1775 		.cmd_set	= P_ID_INTEL_EXT,
1776 		.nr_regions	= 4,
1777 		.regions	= {
1778 			ERASEINFO(0x1000,16),
1779 			ERASEINFO(0x10000,13),
1780 			ERASEINFO(0x1000,16),
1781 			ERASEINFO(0x1000,16),
1782 		}
1783 	}, {
1784 		.mfr_id		= CFI_MFR_ST,
1785 		.dev_id		= M50FLW080B,
1786 		.name		= "ST M50FLW080B",
1787 		.devtypes	= CFI_DEVICETYPE_X8,
1788 		.uaddr		= MTD_UADDR_UNNECESSARY,
1789 		.dev_size	= SIZE_1MiB,
1790 		.cmd_set	= P_ID_INTEL_EXT,
1791 		.nr_regions	= 4,
1792 		.regions	= {
1793 			ERASEINFO(0x1000,16),
1794 			ERASEINFO(0x1000,16),
1795 			ERASEINFO(0x10000,13),
1796 			ERASEINFO(0x1000,16),
1797 		}
1798 	}, {
1799 		.mfr_id		= 0xff00 | CFI_MFR_ST,
1800 		.dev_id		= 0xff00 | PSD4256G6V,
1801 		.name		= "ST PSD4256G6V",
1802 		.devtypes	= CFI_DEVICETYPE_X16,
1803 		.uaddr		= MTD_UADDR_0x0AAA_0x0554,
1804 		.dev_size	= SIZE_1MiB,
1805 		.cmd_set	= P_ID_AMD_STD,
1806 		.nr_regions	= 1,
1807 		.regions	= {
1808 			ERASEINFO(0x10000,16),
1809 		}
1810 	}, {
1811 		.mfr_id		= CFI_MFR_TOSHIBA,
1812 		.dev_id		= TC58FVT160,
1813 		.name		= "Toshiba TC58FVT160",
1814 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1815 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1816 		.dev_size	= SIZE_2MiB,
1817 		.cmd_set	= P_ID_AMD_STD,
1818 		.nr_regions	= 4,
1819 		.regions	= {
1820 			ERASEINFO(0x10000,31),
1821 			ERASEINFO(0x08000,1),
1822 			ERASEINFO(0x02000,2),
1823 			ERASEINFO(0x04000,1)
1824 		}
1825 	}, {
1826 		.mfr_id		= CFI_MFR_TOSHIBA,
1827 		.dev_id		= TC58FVB160,
1828 		.name		= "Toshiba TC58FVB160",
1829 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1830 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1831 		.dev_size	= SIZE_2MiB,
1832 		.cmd_set	= P_ID_AMD_STD,
1833 		.nr_regions	= 4,
1834 		.regions	= {
1835 			ERASEINFO(0x04000,1),
1836 			ERASEINFO(0x02000,2),
1837 			ERASEINFO(0x08000,1),
1838 			ERASEINFO(0x10000,31)
1839 		}
1840 	}, {
1841 		.mfr_id		= CFI_MFR_TOSHIBA,
1842 		.dev_id		= TC58FVB321,
1843 		.name		= "Toshiba TC58FVB321",
1844 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1845 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1846 		.dev_size	= SIZE_4MiB,
1847 		.cmd_set	= P_ID_AMD_STD,
1848 		.nr_regions	= 2,
1849 		.regions	= {
1850 			ERASEINFO(0x02000,8),
1851 			ERASEINFO(0x10000,63)
1852 		}
1853 	}, {
1854 		.mfr_id		= CFI_MFR_TOSHIBA,
1855 		.dev_id		= TC58FVT321,
1856 		.name		= "Toshiba TC58FVT321",
1857 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1858 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1859 		.dev_size	= SIZE_4MiB,
1860 		.cmd_set	= P_ID_AMD_STD,
1861 		.nr_regions	= 2,
1862 		.regions	= {
1863 			ERASEINFO(0x10000,63),
1864 			ERASEINFO(0x02000,8)
1865 		}
1866 	}, {
1867 		.mfr_id		= CFI_MFR_TOSHIBA,
1868 		.dev_id		= TC58FVB641,
1869 		.name		= "Toshiba TC58FVB641",
1870 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1871 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1872 		.dev_size	= SIZE_8MiB,
1873 		.cmd_set	= P_ID_AMD_STD,
1874 		.nr_regions	= 2,
1875 		.regions	= {
1876 			ERASEINFO(0x02000,8),
1877 			ERASEINFO(0x10000,127)
1878 		}
1879 	}, {
1880 		.mfr_id		= CFI_MFR_TOSHIBA,
1881 		.dev_id		= TC58FVT641,
1882 		.name		= "Toshiba TC58FVT641",
1883 		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1884 		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
1885 		.dev_size	= SIZE_8MiB,
1886 		.cmd_set	= P_ID_AMD_STD,
1887 		.nr_regions	= 2,
1888 		.regions	= {
1889 			ERASEINFO(0x10000,127),
1890 			ERASEINFO(0x02000,8)
1891 		}
1892 	}, {
1893 		.mfr_id		= CFI_MFR_WINBOND,
1894 		.dev_id		= W49V002A,
1895 		.name		= "Winbond W49V002A",
1896 		.devtypes	= CFI_DEVICETYPE_X8,
1897 		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
1898 		.dev_size	= SIZE_256KiB,
1899 		.cmd_set	= P_ID_AMD_STD,
1900 		.nr_regions	= 4,
1901 		.regions	= {
1902 			ERASEINFO(0x10000, 3),
1903 			ERASEINFO(0x08000, 1),
1904 			ERASEINFO(0x02000, 2),
1905 			ERASEINFO(0x04000, 1),
1906 		}
1907 	}
1908 };
1909 
jedec_read_mfr(struct map_info * map,uint32_t base,struct cfi_private * cfi)1910 static inline u32 jedec_read_mfr(struct map_info *map, uint32_t base,
1911 	struct cfi_private *cfi)
1912 {
1913 	map_word result;
1914 	unsigned long mask;
1915 	int bank = 0;
1916 
1917 	/* According to JEDEC "Standard Manufacturer's Identification Code"
1918 	 * (http://www.jedec.org/download/search/jep106W.pdf)
1919 	 * several first banks can contain 0x7f instead of actual ID
1920 	 */
1921 	do {
1922 		uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), map, cfi);
1923 		mask = (1 << (cfi->device_type * 8)) - 1;
1924 		if (ofs >= map->size)
1925 			return 0;
1926 		result = map_read(map, base + ofs);
1927 		bank++;
1928 	} while ((result.x[0] & mask) == CFI_MFR_CONTINUATION);
1929 
1930 	return result.x[0] & mask;
1931 }
1932 
jedec_read_id(struct map_info * map,uint32_t base,struct cfi_private * cfi)1933 static inline u32 jedec_read_id(struct map_info *map, uint32_t base,
1934 	struct cfi_private *cfi)
1935 {
1936 	map_word result;
1937 	unsigned long mask;
1938 	u32 ofs = cfi_build_cmd_addr(1, map, cfi);
1939 	mask = (1 << (cfi->device_type * 8)) -1;
1940 	result = map_read(map, base + ofs);
1941 	return result.x[0] & mask;
1942 }
1943 
jedec_reset(u32 base,struct map_info * map,struct cfi_private * cfi)1944 static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi)
1945 {
1946 	/* Reset */
1947 
1948 	/* after checking the datasheets for SST, MACRONIX and ATMEL
1949 	 * (oh and incidentaly the jedec spec - 3.5.3.3) the reset
1950 	 * sequence is *supposed* to be 0xaa at 0x5555, 0x55 at
1951 	 * 0x2aaa, 0xF0 at 0x5555 this will not affect the AMD chips
1952 	 * as they will ignore the writes and don't care what address
1953 	 * the F0 is written to */
1954 	if (cfi->addr_unlock1) {
1955 		pr_debug( "reset unlock called %x %x \n",
1956 		       cfi->addr_unlock1,cfi->addr_unlock2);
1957 		cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
1958 		cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
1959 	}
1960 
1961 	cfi_send_gen_cmd(0xF0, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
1962 	/* Some misdesigned Intel chips do not respond for 0xF0 for a reset,
1963 	 * so ensure we're in read mode.  Send both the Intel and the AMD command
1964 	 * for this.  Intel uses 0xff for this, AMD uses 0xff for NOP, so
1965 	 * this should be safe.
1966 	 */
1967 	cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);
1968 	/* FIXME - should have reset delay before continuing */
1969 }
1970 
1971 
cfi_jedec_setup(struct map_info * map,struct cfi_private * cfi,int index)1972 static int cfi_jedec_setup(struct map_info *map, struct cfi_private *cfi, int index)
1973 {
1974 	int i,num_erase_regions;
1975 	uint8_t uaddr;
1976 
1977 	if (!(jedec_table[index].devtypes & cfi->device_type)) {
1978 		pr_debug("Rejecting potential %s with incompatible %d-bit device type\n",
1979 		      jedec_table[index].name, 4 * (1<<cfi->device_type));
1980 		return 0;
1981 	}
1982 
1983 	printk(KERN_INFO "Found: %s\n",jedec_table[index].name);
1984 
1985 	num_erase_regions = jedec_table[index].nr_regions;
1986 
1987 	cfi->cfiq = kmalloc(sizeof(struct cfi_ident) + num_erase_regions * 4, GFP_KERNEL);
1988 	if (!cfi->cfiq) {
1989 		//xx printk(KERN_WARNING "%s: kmalloc failed for CFI ident structure\n", map->name);
1990 		return 0;
1991 	}
1992 
1993 	memset(cfi->cfiq, 0, sizeof(struct cfi_ident));
1994 
1995 	cfi->cfiq->P_ID = jedec_table[index].cmd_set;
1996 	cfi->cfiq->NumEraseRegions = jedec_table[index].nr_regions;
1997 	cfi->cfiq->DevSize = jedec_table[index].dev_size;
1998 	cfi->cfi_mode = CFI_MODE_JEDEC;
1999 	cfi->sector_erase_cmd = CMD(0x30);
2000 
2001 	for (i=0; i<num_erase_regions; i++){
2002 		cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i];
2003 	}
2004 	cfi->cmdset_priv = NULL;
2005 
2006 	/* This may be redundant for some cases, but it doesn't hurt */
2007 	cfi->mfr = jedec_table[index].mfr_id;
2008 	cfi->id = jedec_table[index].dev_id;
2009 
2010 	uaddr = jedec_table[index].uaddr;
2011 
2012 	/* The table has unlock addresses in _bytes_, and we try not to let
2013 	   our brains explode when we see the datasheets talking about address
2014 	   lines numbered from A-1 to A18. The CFI table has unlock addresses
2015 	   in device-words according to the mode the device is connected in */
2016 	cfi->addr_unlock1 = unlock_addrs[uaddr].addr1 / cfi->device_type;
2017 	cfi->addr_unlock2 = unlock_addrs[uaddr].addr2 / cfi->device_type;
2018 
2019 	return 1;	/* ok */
2020 }
2021 
2022 
2023 /*
2024  * There is a BIG problem properly ID'ing the JEDEC device and guaranteeing
2025  * the mapped address, unlock addresses, and proper chip ID.  This function
2026  * attempts to minimize errors.  It is doubtfull that this probe will ever
2027  * be perfect - consequently there should be some module parameters that
2028  * could be manually specified to force the chip info.
2029  */
jedec_match(uint32_t base,struct map_info * map,struct cfi_private * cfi,const struct amd_flash_info * finfo)2030 static inline int jedec_match( uint32_t base,
2031 			       struct map_info *map,
2032 			       struct cfi_private *cfi,
2033 			       const struct amd_flash_info *finfo )
2034 {
2035 	int rc = 0;           /* failure until all tests pass */
2036 	u32 mfr, id;
2037 	uint8_t uaddr;
2038 
2039 	/*
2040 	 * The IDs must match.  For X16 and X32 devices operating in
2041 	 * a lower width ( X8 or X16 ), the device ID's are usually just
2042 	 * the lower byte(s) of the larger device ID for wider mode.  If
2043 	 * a part is found that doesn't fit this assumption (device id for
2044 	 * smaller width mode is completely unrealated to full-width mode)
2045 	 * then the jedec_table[] will have to be augmented with the IDs
2046 	 * for different widths.
2047 	 */
2048 	switch (cfi->device_type) {
2049 	case CFI_DEVICETYPE_X8:
2050 		mfr = (uint8_t)finfo->mfr_id;
2051 		id = (uint8_t)finfo->dev_id;
2052 
2053 		/* bjd: it seems that if we do this, we can end up
2054 		 * detecting 16bit flashes as an 8bit device, even though
2055 		 * there aren't.
2056 		 */
2057 		if (finfo->dev_id > 0xff) {
2058 			pr_debug("%s(): ID is not 8bit\n",
2059 			       __func__);
2060 			goto match_done;
2061 		}
2062 		break;
2063 	case CFI_DEVICETYPE_X16:
2064 		mfr = (uint16_t)finfo->mfr_id;
2065 		id = (uint16_t)finfo->dev_id;
2066 		break;
2067 	case CFI_DEVICETYPE_X32:
2068 		mfr = (uint16_t)finfo->mfr_id;
2069 		id = (uint32_t)finfo->dev_id;
2070 		break;
2071 	default:
2072 		printk(KERN_WARNING
2073 		       "MTD %s(): Unsupported device type %d\n",
2074 		       __func__, cfi->device_type);
2075 		goto match_done;
2076 	}
2077 	if ( cfi->mfr != mfr || cfi->id != id ) {
2078 		goto match_done;
2079 	}
2080 
2081 	/* the part size must fit in the memory window */
2082 	pr_debug("MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n",
2083 	       __func__, base, 1 << finfo->dev_size, base + (1 << finfo->dev_size) );
2084 	if ( base + cfi_interleave(cfi) * ( 1 << finfo->dev_size ) > map->size ) {
2085 		pr_debug("MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n",
2086 		       __func__, finfo->mfr_id, finfo->dev_id,
2087 		       1 << finfo->dev_size );
2088 		goto match_done;
2089 	}
2090 
2091 	if (! (finfo->devtypes & cfi->device_type))
2092 		goto match_done;
2093 
2094 	uaddr = finfo->uaddr;
2095 
2096 	pr_debug("MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n",
2097 	       __func__, cfi->addr_unlock1, cfi->addr_unlock2 );
2098 	if ( MTD_UADDR_UNNECESSARY != uaddr && MTD_UADDR_DONT_CARE != uaddr
2099 	     && ( unlock_addrs[uaddr].addr1 / cfi->device_type != cfi->addr_unlock1 ||
2100 		  unlock_addrs[uaddr].addr2 / cfi->device_type != cfi->addr_unlock2 ) ) {
2101 		pr_debug("MTD %s(): 0x%.4x 0x%.4x did not match\n",
2102 			__func__,
2103 			unlock_addrs[uaddr].addr1,
2104 			unlock_addrs[uaddr].addr2);
2105 		goto match_done;
2106 	}
2107 
2108 	/*
2109 	 * Make sure the ID's disappear when the device is taken out of
2110 	 * ID mode.  The only time this should fail when it should succeed
2111 	 * is when the ID's are written as data to the same
2112 	 * addresses.  For this rare and unfortunate case the chip
2113 	 * cannot be probed correctly.
2114 	 * FIXME - write a driver that takes all of the chip info as
2115 	 * module parameters, doesn't probe but forces a load.
2116 	 */
2117 	pr_debug("MTD %s(): check ID's disappear when not in ID mode\n",
2118 	       __func__ );
2119 	jedec_reset( base, map, cfi );
2120 	mfr = jedec_read_mfr( map, base, cfi );
2121 	id = jedec_read_id( map, base, cfi );
2122 	if ( mfr == cfi->mfr && id == cfi->id ) {
2123 		pr_debug("MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n"
2124 		       "You might need to manually specify JEDEC parameters.\n",
2125 			__func__, cfi->mfr, cfi->id );
2126 		goto match_done;
2127 	}
2128 
2129 	/* all tests passed - mark  as success */
2130 	rc = 1;
2131 
2132 	/*
2133 	 * Put the device back in ID mode - only need to do this if we
2134 	 * were truly frobbing a real device.
2135 	 */
2136 	pr_debug("MTD %s(): return to ID mode\n", __func__ );
2137 	if (cfi->addr_unlock1) {
2138 		cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
2139 		cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
2140 	}
2141 	cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
2142 	/* FIXME - should have a delay before continuing */
2143 
2144  match_done:
2145 	return rc;
2146 }
2147 
2148 
jedec_probe_chip(struct map_info * map,__u32 base,unsigned long * chip_map,struct cfi_private * cfi)2149 static int jedec_probe_chip(struct map_info *map, __u32 base,
2150 			    unsigned long *chip_map, struct cfi_private *cfi)
2151 {
2152 	int i;
2153 	enum uaddr uaddr_idx = MTD_UADDR_NOT_SUPPORTED;
2154 	u32 probe_offset1, probe_offset2;
2155 
2156  retry:
2157 	if (!cfi->numchips) {
2158 		uaddr_idx++;
2159 
2160 		if (MTD_UADDR_UNNECESSARY == uaddr_idx)
2161 			return 0;
2162 
2163 		cfi->addr_unlock1 = unlock_addrs[uaddr_idx].addr1 / cfi->device_type;
2164 		cfi->addr_unlock2 = unlock_addrs[uaddr_idx].addr2 / cfi->device_type;
2165 	}
2166 
2167 	/* Make certain we aren't probing past the end of map */
2168 	if (base >= map->size) {
2169 		printk(KERN_NOTICE
2170 			"Probe at base(0x%08x) past the end of the map(0x%08lx)\n",
2171 			base, map->size -1);
2172 		return 0;
2173 
2174 	}
2175 	/* Ensure the unlock addresses we try stay inside the map */
2176 	probe_offset1 = cfi_build_cmd_addr(cfi->addr_unlock1, map, cfi);
2177 	probe_offset2 = cfi_build_cmd_addr(cfi->addr_unlock2, map, cfi);
2178 	if (	((base + probe_offset1 + map_bankwidth(map)) >= map->size) ||
2179 		((base + probe_offset2 + map_bankwidth(map)) >= map->size))
2180 		goto retry;
2181 
2182 	/* Reset */
2183 	jedec_reset(base, map, cfi);
2184 
2185 	/* Autoselect Mode */
2186 	if(cfi->addr_unlock1) {
2187 		cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
2188 		cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
2189 	}
2190 	cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
2191 	/* FIXME - should have a delay before continuing */
2192 
2193 	if (!cfi->numchips) {
2194 		/* This is the first time we're called. Set up the CFI
2195 		   stuff accordingly and return */
2196 
2197 		cfi->mfr = jedec_read_mfr(map, base, cfi);
2198 		cfi->id = jedec_read_id(map, base, cfi);
2199 		pr_debug("Search for id:(%02x %02x) interleave(%d) type(%d)\n",
2200 			cfi->mfr, cfi->id, cfi_interleave(cfi), cfi->device_type);
2201 		for (i = 0; i < ARRAY_SIZE(jedec_table); i++) {
2202 			if ( jedec_match( base, map, cfi, &jedec_table[i] ) ) {
2203 				pr_debug("MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n",
2204 				       __func__, cfi->mfr, cfi->id,
2205 				       cfi->addr_unlock1, cfi->addr_unlock2 );
2206 				if (!cfi_jedec_setup(map, cfi, i))
2207 					return 0;
2208 				goto ok_out;
2209 			}
2210 		}
2211 		goto retry;
2212 	} else {
2213 		uint16_t mfr;
2214 		uint16_t id;
2215 
2216 		/* Make sure it is a chip of the same manufacturer and id */
2217 		mfr = jedec_read_mfr(map, base, cfi);
2218 		id = jedec_read_id(map, base, cfi);
2219 
2220 		if ((mfr != cfi->mfr) || (id != cfi->id)) {
2221 			printk(KERN_DEBUG "%s: Found different chip or no chip at all (mfr 0x%x, id 0x%x) at 0x%x\n",
2222 			       map->name, mfr, id, base);
2223 			jedec_reset(base, map, cfi);
2224 			return 0;
2225 		}
2226 	}
2227 
2228 	/* Check each previous chip locations to see if it's an alias */
2229 	for (i=0; i < (base >> cfi->chipshift); i++) {
2230 		unsigned long start;
2231 		if(!test_bit(i, chip_map)) {
2232 			continue; /* Skip location; no valid chip at this address */
2233 		}
2234 		start = i << cfi->chipshift;
2235 		if (jedec_read_mfr(map, start, cfi) == cfi->mfr &&
2236 		    jedec_read_id(map, start, cfi) == cfi->id) {
2237 			/* Eep. This chip also looks like it's in autoselect mode.
2238 			   Is it an alias for the new one? */
2239 			jedec_reset(start, map, cfi);
2240 
2241 			/* If the device IDs go away, it's an alias */
2242 			if (jedec_read_mfr(map, base, cfi) != cfi->mfr ||
2243 			    jedec_read_id(map, base, cfi) != cfi->id) {
2244 				printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
2245 				       map->name, base, start);
2246 				return 0;
2247 			}
2248 
2249 			/* Yes, it's actually got the device IDs as data. Most
2250 			 * unfortunate. Stick the new chip in read mode
2251 			 * too and if it's the same, assume it's an alias. */
2252 			/* FIXME: Use other modes to do a proper check */
2253 			jedec_reset(base, map, cfi);
2254 			if (jedec_read_mfr(map, base, cfi) == cfi->mfr &&
2255 			    jedec_read_id(map, base, cfi) == cfi->id) {
2256 				printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
2257 				       map->name, base, start);
2258 				return 0;
2259 			}
2260 		}
2261 	}
2262 
2263 	/* OK, if we got to here, then none of the previous chips appear to
2264 	   be aliases for the current one. */
2265 	set_bit((base >> cfi->chipshift), chip_map); /* Update chip map */
2266 	cfi->numchips++;
2267 
2268 ok_out:
2269 	/* Put it back into Read Mode */
2270 	jedec_reset(base, map, cfi);
2271 
2272 	printk(KERN_INFO "%s: Found %d x%d devices at 0x%x in %d-bit bank\n",
2273 	       map->name, cfi_interleave(cfi), cfi->device_type*8, base,
2274 	       map->bankwidth*8);
2275 
2276 	return 1;
2277 }
2278 
2279 static struct chip_probe jedec_chip_probe = {
2280 	.name = "JEDEC",
2281 	.probe_chip = jedec_probe_chip
2282 };
2283 
jedec_probe(struct map_info * map)2284 static struct mtd_info *jedec_probe(struct map_info *map)
2285 {
2286 	/*
2287 	 * Just use the generic probe stuff to call our CFI-specific
2288 	 * chip_probe routine in all the possible permutations, etc.
2289 	 */
2290 	return mtd_do_chip_probe(map, &jedec_chip_probe);
2291 }
2292 
2293 static struct mtd_chip_driver jedec_chipdrv = {
2294 	.probe	= jedec_probe,
2295 	.name	= "jedec_probe",
2296 	.module	= THIS_MODULE
2297 };
2298 
jedec_probe_init(void)2299 static int __init jedec_probe_init(void)
2300 {
2301 	register_mtd_chip_driver(&jedec_chipdrv);
2302 	return 0;
2303 }
2304 
jedec_probe_exit(void)2305 static void __exit jedec_probe_exit(void)
2306 {
2307 	unregister_mtd_chip_driver(&jedec_chipdrv);
2308 }
2309 
2310 module_init(jedec_probe_init);
2311 module_exit(jedec_probe_exit);
2312 
2313 MODULE_LICENSE("GPL");
2314 MODULE_AUTHOR("Erwin Authried <eauth@softsys.co.at> et al.");
2315 MODULE_DESCRIPTION("Probe code for JEDEC-compliant flash chips");
2316