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1 | /* | |
2 | * (C) Copyright 2002-2004 | |
3 | * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com | |
4 | * | |
5 | * Copyright (C) 2003 Arabella Software Ltd. | |
6 | * Yuli Barcohen <yuli@arabellasw.com> | |
7 | * | |
8 | * Copyright (C) 2004 | |
9 | * Ed Okerson | |
10 | * | |
11 | * Copyright (C) 2006 | |
12 | * Tolunay Orkun <listmember@orkun.us> | |
13 | * | |
14 | * See file CREDITS for list of people who contributed to this | |
15 | * project. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or | |
18 | * modify it under the terms of the GNU General Public License as | |
19 | * published by the Free Software Foundation; either version 2 of | |
20 | * the License, or (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
30 | * MA 02111-1307 USA | |
31 | * | |
32 | */ | |
33 | ||
34 | /* The DEBUG define must be before common to enable debugging */ | |
35 | /* #define DEBUG */ | |
36 | ||
37 | #include <common.h> | |
38 | #include <asm/processor.h> | |
39 | #include <asm/io.h> | |
40 | #include <asm/byteorder.h> | |
41 | #include <environment.h> | |
42 | #include <mtd/cfi_flash.h> | |
43 | ||
44 | /* | |
45 | * This file implements a Common Flash Interface (CFI) driver for | |
46 | * U-Boot. | |
47 | * | |
48 | * The width of the port and the width of the chips are determined at | |
49 | * initialization. These widths are used to calculate the address for | |
50 | * access CFI data structures. | |
51 | * | |
52 | * References | |
53 | * JEDEC Standard JESD68 - Common Flash Interface (CFI) | |
54 | * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes | |
55 | * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets | |
56 | * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet | |
57 | * AMD CFI Specification, Release 2.0 December 1, 2001 | |
58 | * AMD/Spansion Application Note: Migration from Single-byte to Three-byte | |
59 | * Device IDs, Publication Number 25538 Revision A, November 8, 2001 | |
60 | * | |
61 | * Define CONFIG_SYS_WRITE_SWAPPED_DATA, if you have to swap the Bytes between | |
62 | * reading and writing ... (yes there is such a Hardware). | |
63 | */ | |
64 | ||
65 | #ifndef CONFIG_SYS_FLASH_BANKS_LIST | |
66 | #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE } | |
67 | #endif | |
68 | ||
69 | static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT }; | |
70 | static uint flash_verbose = 1; | |
71 | ||
72 | /* use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined */ | |
73 | #ifdef CONFIG_SYS_MAX_FLASH_BANKS_DETECT | |
74 | # define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT | |
75 | #else | |
76 | # define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS | |
77 | #endif | |
78 | ||
79 | flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */ | |
80 | ||
81 | /* | |
82 | * Check if chip width is defined. If not, start detecting with 8bit. | |
83 | */ | |
84 | #ifndef CONFIG_SYS_FLASH_CFI_WIDTH | |
85 | #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_8BIT | |
86 | #endif | |
87 | ||
88 | static void __flash_write8(u8 value, void *addr) | |
89 | { | |
90 | __raw_writeb(value, addr); | |
91 | } | |
92 | ||
93 | static void __flash_write16(u16 value, void *addr) | |
94 | { | |
95 | __raw_writew(value, addr); | |
96 | } | |
97 | ||
98 | static void __flash_write32(u32 value, void *addr) | |
99 | { | |
100 | __raw_writel(value, addr); | |
101 | } | |
102 | ||
103 | static void __flash_write64(u64 value, void *addr) | |
104 | { | |
105 | /* No architectures currently implement __raw_writeq() */ | |
106 | *(volatile u64 *)addr = value; | |
107 | } | |
108 | ||
109 | static u8 __flash_read8(void *addr) | |
110 | { | |
111 | return __raw_readb(addr); | |
112 | } | |
113 | ||
114 | static u16 __flash_read16(void *addr) | |
115 | { | |
116 | return __raw_readw(addr); | |
117 | } | |
118 | ||
119 | static u32 __flash_read32(void *addr) | |
120 | { | |
121 | return __raw_readl(addr); | |
122 | } | |
123 | ||
124 | static u64 __flash_read64(void *addr) | |
125 | { | |
126 | /* No architectures currently implement __raw_readq() */ | |
127 | return *(volatile u64 *)addr; | |
128 | } | |
129 | ||
130 | #ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS | |
131 | void flash_write8(u8 value, void *addr)__attribute__((weak, alias("__flash_write8"))); | |
132 | void flash_write16(u16 value, void *addr)__attribute__((weak, alias("__flash_write16"))); | |
133 | void flash_write32(u32 value, void *addr)__attribute__((weak, alias("__flash_write32"))); | |
134 | void flash_write64(u64 value, void *addr)__attribute__((weak, alias("__flash_write64"))); | |
135 | u8 flash_read8(void *addr)__attribute__((weak, alias("__flash_read8"))); | |
136 | u16 flash_read16(void *addr)__attribute__((weak, alias("__flash_read16"))); | |
137 | u32 flash_read32(void *addr)__attribute__((weak, alias("__flash_read32"))); | |
138 | u64 flash_read64(void *addr)__attribute__((weak, alias("__flash_read64"))); | |
139 | #else | |
140 | #define flash_write8 __flash_write8 | |
141 | #define flash_write16 __flash_write16 | |
142 | #define flash_write32 __flash_write32 | |
143 | #define flash_write64 __flash_write64 | |
144 | #define flash_read8 __flash_read8 | |
145 | #define flash_read16 __flash_read16 | |
146 | #define flash_read32 __flash_read32 | |
147 | #define flash_read64 __flash_read64 | |
148 | #endif | |
149 | ||
150 | /*----------------------------------------------------------------------- | |
151 | */ | |
152 | #if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) | |
153 | flash_info_t *flash_get_info(ulong base) | |
154 | { | |
155 | int i; | |
156 | flash_info_t * info = 0; | |
157 | ||
158 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { | |
159 | info = & flash_info[i]; | |
160 | if (info->size && info->start[0] <= base && | |
161 | base <= info->start[0] + info->size - 1) | |
162 | break; | |
163 | } | |
164 | ||
165 | return i == CONFIG_SYS_MAX_FLASH_BANKS ? 0 : info; | |
166 | } | |
167 | #endif | |
168 | ||
169 | unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect) | |
170 | { | |
171 | if (sect != (info->sector_count - 1)) | |
172 | return info->start[sect + 1] - info->start[sect]; | |
173 | else | |
174 | return info->start[0] + info->size - info->start[sect]; | |
175 | } | |
176 | ||
177 | /*----------------------------------------------------------------------- | |
178 | * create an address based on the offset and the port width | |
179 | */ | |
180 | static inline void * | |
181 | flash_map (flash_info_t * info, flash_sect_t sect, uint offset) | |
182 | { | |
183 | unsigned int byte_offset = offset * info->portwidth; | |
184 | ||
185 | return (void *)(info->start[sect] + byte_offset); | |
186 | } | |
187 | ||
188 | static inline void flash_unmap(flash_info_t *info, flash_sect_t sect, | |
189 | unsigned int offset, void *addr) | |
190 | { | |
191 | } | |
192 | ||
193 | /*----------------------------------------------------------------------- | |
194 | * make a proper sized command based on the port and chip widths | |
195 | */ | |
196 | static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf) | |
197 | { | |
198 | int i; | |
199 | int cword_offset; | |
200 | int cp_offset; | |
201 | #if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
202 | u32 cmd_le = cpu_to_le32(cmd); | |
203 | #endif | |
204 | uchar val; | |
205 | uchar *cp = (uchar *) cmdbuf; | |
206 | ||
207 | for (i = info->portwidth; i > 0; i--){ | |
208 | cword_offset = (info->portwidth-i)%info->chipwidth; | |
209 | #if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
210 | cp_offset = info->portwidth - i; | |
211 | val = *((uchar*)&cmd_le + cword_offset); | |
212 | #else | |
213 | cp_offset = i - 1; | |
214 | val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1); | |
215 | #endif | |
216 | cp[cp_offset] = (cword_offset >= sizeof(u32)) ? 0x00 : val; | |
217 | } | |
218 | } | |
219 | ||
220 | #ifdef DEBUG | |
221 | /*----------------------------------------------------------------------- | |
222 | * Debug support | |
223 | */ | |
224 | static void print_longlong (char *str, unsigned long long data) | |
225 | { | |
226 | int i; | |
227 | char *cp; | |
228 | ||
229 | cp = (char *) &data; | |
230 | for (i = 0; i < 8; i++) | |
231 | sprintf (&str[i * 2], "%2.2x", *cp++); | |
232 | } | |
233 | ||
234 | static void flash_printqry (struct cfi_qry *qry) | |
235 | { | |
236 | u8 *p = (u8 *)qry; | |
237 | int x, y; | |
238 | ||
239 | for (x = 0; x < sizeof(struct cfi_qry); x += 16) { | |
240 | debug("%02x : ", x); | |
241 | for (y = 0; y < 16; y++) | |
242 | debug("%2.2x ", p[x + y]); | |
243 | debug(" "); | |
244 | for (y = 0; y < 16; y++) { | |
245 | unsigned char c = p[x + y]; | |
246 | if (c >= 0x20 && c <= 0x7e) | |
247 | debug("%c", c); | |
248 | else | |
249 | debug("."); | |
250 | } | |
251 | debug("\n"); | |
252 | } | |
253 | } | |
254 | #endif | |
255 | ||
256 | ||
257 | /*----------------------------------------------------------------------- | |
258 | * read a character at a port width address | |
259 | */ | |
260 | static inline uchar flash_read_uchar (flash_info_t * info, uint offset) | |
261 | { | |
262 | uchar *cp; | |
263 | uchar retval; | |
264 | ||
265 | cp = flash_map (info, 0, offset); | |
266 | #if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
267 | retval = flash_read8(cp); | |
268 | #else | |
269 | retval = flash_read8(cp + info->portwidth - 1); | |
270 | #endif | |
271 | flash_unmap (info, 0, offset, cp); | |
272 | return retval; | |
273 | } | |
274 | ||
275 | /*----------------------------------------------------------------------- | |
276 | * read a word at a port width address, assume 16bit bus | |
277 | */ | |
278 | static inline ushort flash_read_word (flash_info_t * info, uint offset) | |
279 | { | |
280 | ushort *addr, retval; | |
281 | ||
282 | addr = flash_map (info, 0, offset); | |
283 | retval = flash_read16 (addr); | |
284 | flash_unmap (info, 0, offset, addr); | |
285 | return retval; | |
286 | } | |
287 | ||
288 | ||
289 | /*----------------------------------------------------------------------- | |
290 | * read a long word by picking the least significant byte of each maximum | |
291 | * port size word. Swap for ppc format. | |
292 | */ | |
293 | static ulong flash_read_long (flash_info_t * info, flash_sect_t sect, | |
294 | uint offset) | |
295 | { | |
296 | uchar *addr; | |
297 | ulong retval; | |
298 | ||
299 | #ifdef DEBUG | |
300 | int x; | |
301 | #endif | |
302 | addr = flash_map (info, sect, offset); | |
303 | ||
304 | #ifdef DEBUG | |
305 | debug ("long addr is at %p info->portwidth = %d\n", addr, | |
306 | info->portwidth); | |
307 | for (x = 0; x < 4 * info->portwidth; x++) { | |
308 | debug ("addr[%x] = 0x%x\n", x, flash_read8(addr + x)); | |
309 | } | |
310 | #endif | |
311 | #if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
312 | retval = ((flash_read8(addr) << 16) | | |
313 | (flash_read8(addr + info->portwidth) << 24) | | |
314 | (flash_read8(addr + 2 * info->portwidth)) | | |
315 | (flash_read8(addr + 3 * info->portwidth) << 8)); | |
316 | #else | |
317 | retval = ((flash_read8(addr + 2 * info->portwidth - 1) << 24) | | |
318 | (flash_read8(addr + info->portwidth - 1) << 16) | | |
319 | (flash_read8(addr + 4 * info->portwidth - 1) << 8) | | |
320 | (flash_read8(addr + 3 * info->portwidth - 1))); | |
321 | #endif | |
322 | flash_unmap(info, sect, offset, addr); | |
323 | ||
324 | return retval; | |
325 | } | |
326 | ||
327 | /* | |
328 | * Write a proper sized command to the correct address | |
329 | */ | |
330 | void flash_write_cmd (flash_info_t * info, flash_sect_t sect, | |
331 | uint offset, u32 cmd) | |
332 | { | |
333 | ||
334 | void *addr; | |
335 | cfiword_t cword; | |
336 | ||
337 | addr = flash_map (info, sect, offset); | |
338 | flash_make_cmd (info, cmd, &cword); | |
339 | switch (info->portwidth) { | |
340 | case FLASH_CFI_8BIT: | |
341 | debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr, cmd, | |
342 | cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); | |
343 | flash_write8(cword.c, addr); | |
344 | break; | |
345 | case FLASH_CFI_16BIT: | |
346 | debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr, | |
347 | cmd, cword.w, | |
348 | info->chipwidth << CFI_FLASH_SHIFT_WIDTH); | |
349 | flash_write16(cword.w, addr); | |
350 | break; | |
351 | case FLASH_CFI_32BIT: | |
352 | debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr, | |
353 | cmd, cword.l, | |
354 | info->chipwidth << CFI_FLASH_SHIFT_WIDTH); | |
355 | flash_write32(cword.l, addr); | |
356 | break; | |
357 | case FLASH_CFI_64BIT: | |
358 | #ifdef DEBUG | |
359 | { | |
360 | char str[20]; | |
361 | ||
362 | print_longlong (str, cword.ll); | |
363 | ||
364 | debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n", | |
365 | addr, cmd, str, | |
366 | info->chipwidth << CFI_FLASH_SHIFT_WIDTH); | |
367 | } | |
368 | #endif | |
369 | flash_write64(cword.ll, addr); | |
370 | break; | |
371 | } | |
372 | ||
373 | /* Ensure all the instructions are fully finished */ | |
374 | sync(); | |
375 | ||
376 | flash_unmap(info, sect, offset, addr); | |
377 | } | |
378 | ||
379 | static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect) | |
380 | { | |
381 | flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START); | |
382 | flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK); | |
383 | } | |
384 | ||
385 | /*----------------------------------------------------------------------- | |
386 | */ | |
387 | static int flash_isequal (flash_info_t * info, flash_sect_t sect, | |
388 | uint offset, uchar cmd) | |
389 | { | |
390 | void *addr; | |
391 | cfiword_t cword; | |
392 | int retval; | |
393 | ||
394 | addr = flash_map (info, sect, offset); | |
395 | flash_make_cmd (info, cmd, &cword); | |
396 | ||
397 | debug ("is= cmd %x(%c) addr %p ", cmd, cmd, addr); | |
398 | switch (info->portwidth) { | |
399 | case FLASH_CFI_8BIT: | |
400 | debug ("is= %x %x\n", flash_read8(addr), cword.c); | |
401 | retval = (flash_read8(addr) == cword.c); | |
402 | break; | |
403 | case FLASH_CFI_16BIT: | |
404 | debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w); | |
405 | retval = (flash_read16(addr) == cword.w); | |
406 | break; | |
407 | case FLASH_CFI_32BIT: | |
408 | debug ("is= %8.8x %8.8lx\n", flash_read32(addr), cword.l); | |
409 | retval = (flash_read32(addr) == cword.l); | |
410 | break; | |
411 | case FLASH_CFI_64BIT: | |
412 | #ifdef DEBUG | |
413 | { | |
414 | char str1[20]; | |
415 | char str2[20]; | |
416 | ||
417 | print_longlong (str1, flash_read64(addr)); | |
418 | print_longlong (str2, cword.ll); | |
419 | debug ("is= %s %s\n", str1, str2); | |
420 | } | |
421 | #endif | |
422 | retval = (flash_read64(addr) == cword.ll); | |
423 | break; | |
424 | default: | |
425 | retval = 0; | |
426 | break; | |
427 | } | |
428 | flash_unmap(info, sect, offset, addr); | |
429 | ||
430 | return retval; | |
431 | } | |
432 | ||
433 | /*----------------------------------------------------------------------- | |
434 | */ | |
435 | static int flash_isset (flash_info_t * info, flash_sect_t sect, | |
436 | uint offset, uchar cmd) | |
437 | { | |
438 | void *addr; | |
439 | cfiword_t cword; | |
440 | int retval; | |
441 | ||
442 | addr = flash_map (info, sect, offset); | |
443 | flash_make_cmd (info, cmd, &cword); | |
444 | switch (info->portwidth) { | |
445 | case FLASH_CFI_8BIT: | |
446 | retval = ((flash_read8(addr) & cword.c) == cword.c); | |
447 | break; | |
448 | case FLASH_CFI_16BIT: | |
449 | retval = ((flash_read16(addr) & cword.w) == cword.w); | |
450 | break; | |
451 | case FLASH_CFI_32BIT: | |
452 | retval = ((flash_read32(addr) & cword.l) == cword.l); | |
453 | break; | |
454 | case FLASH_CFI_64BIT: | |
455 | retval = ((flash_read64(addr) & cword.ll) == cword.ll); | |
456 | break; | |
457 | default: | |
458 | retval = 0; | |
459 | break; | |
460 | } | |
461 | flash_unmap(info, sect, offset, addr); | |
462 | ||
463 | return retval; | |
464 | } | |
465 | ||
466 | /*----------------------------------------------------------------------- | |
467 | */ | |
468 | static int flash_toggle (flash_info_t * info, flash_sect_t sect, | |
469 | uint offset, uchar cmd) | |
470 | { | |
471 | void *addr; | |
472 | cfiword_t cword; | |
473 | int retval; | |
474 | ||
475 | addr = flash_map (info, sect, offset); | |
476 | flash_make_cmd (info, cmd, &cword); | |
477 | switch (info->portwidth) { | |
478 | case FLASH_CFI_8BIT: | |
479 | retval = flash_read8(addr) != flash_read8(addr); | |
480 | break; | |
481 | case FLASH_CFI_16BIT: | |
482 | retval = flash_read16(addr) != flash_read16(addr); | |
483 | break; | |
484 | case FLASH_CFI_32BIT: | |
485 | retval = flash_read32(addr) != flash_read32(addr); | |
486 | break; | |
487 | case FLASH_CFI_64BIT: | |
488 | retval = ( (flash_read32( addr ) != flash_read32( addr )) || | |
489 | (flash_read32(addr+4) != flash_read32(addr+4)) ); | |
490 | break; | |
491 | default: | |
492 | retval = 0; | |
493 | break; | |
494 | } | |
495 | flash_unmap(info, sect, offset, addr); | |
496 | ||
497 | return retval; | |
498 | } | |
499 | ||
500 | /* | |
501 | * flash_is_busy - check to see if the flash is busy | |
502 | * | |
503 | * This routine checks the status of the chip and returns true if the | |
504 | * chip is busy. | |
505 | */ | |
506 | static int flash_is_busy (flash_info_t * info, flash_sect_t sect) | |
507 | { | |
508 | int retval; | |
509 | ||
510 | switch (info->vendor) { | |
511 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
512 | case CFI_CMDSET_INTEL_STANDARD: | |
513 | case CFI_CMDSET_INTEL_EXTENDED: | |
514 | retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE); | |
515 | break; | |
516 | case CFI_CMDSET_AMD_STANDARD: | |
517 | case CFI_CMDSET_AMD_EXTENDED: | |
518 | #ifdef CONFIG_FLASH_CFI_LEGACY | |
519 | case CFI_CMDSET_AMD_LEGACY: | |
520 | #endif | |
521 | retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE); | |
522 | break; | |
523 | default: | |
524 | retval = 0; | |
525 | } | |
526 | debug ("flash_is_busy: %d\n", retval); | |
527 | return retval; | |
528 | } | |
529 | ||
530 | /*----------------------------------------------------------------------- | |
531 | * wait for XSR.7 to be set. Time out with an error if it does not. | |
532 | * This routine does not set the flash to read-array mode. | |
533 | */ | |
534 | static int flash_status_check (flash_info_t * info, flash_sect_t sector, | |
535 | ulong tout, char *prompt) | |
536 | { | |
537 | ulong start; | |
538 | ||
539 | #if CONFIG_SYS_HZ != 1000 | |
540 | tout *= CONFIG_SYS_HZ/1000; | |
541 | #endif | |
542 | ||
543 | /* Wait for command completion */ | |
544 | start = get_timer (0); | |
545 | while (flash_is_busy (info, sector)) { | |
546 | if (get_timer (start) > tout) { | |
547 | printf ("Flash %s timeout at address %lx data %lx\n", | |
548 | prompt, info->start[sector], | |
549 | flash_read_long (info, sector, 0)); | |
550 | flash_write_cmd (info, sector, 0, info->cmd_reset); | |
551 | return ERR_TIMOUT; | |
552 | } | |
553 | udelay (1); /* also triggers watchdog */ | |
554 | } | |
555 | return ERR_OK; | |
556 | } | |
557 | ||
558 | /*----------------------------------------------------------------------- | |
559 | * Wait for XSR.7 to be set, if it times out print an error, otherwise | |
560 | * do a full status check. | |
561 | * | |
562 | * This routine sets the flash to read-array mode. | |
563 | */ | |
564 | static int flash_full_status_check (flash_info_t * info, flash_sect_t sector, | |
565 | ulong tout, char *prompt) | |
566 | { | |
567 | int retcode; | |
568 | ||
569 | retcode = flash_status_check (info, sector, tout, prompt); | |
570 | switch (info->vendor) { | |
571 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
572 | case CFI_CMDSET_INTEL_EXTENDED: | |
573 | case CFI_CMDSET_INTEL_STANDARD: | |
574 | if ((retcode != ERR_OK) | |
575 | && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) { | |
576 | retcode = ERR_INVAL; | |
577 | printf ("Flash %s error at address %lx\n", prompt, | |
578 | info->start[sector]); | |
579 | if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS | | |
580 | FLASH_STATUS_PSLBS)) { | |
581 | puts ("Command Sequence Error.\n"); | |
582 | } else if (flash_isset (info, sector, 0, | |
583 | FLASH_STATUS_ECLBS)) { | |
584 | puts ("Block Erase Error.\n"); | |
585 | retcode = ERR_NOT_ERASED; | |
586 | } else if (flash_isset (info, sector, 0, | |
587 | FLASH_STATUS_PSLBS)) { | |
588 | puts ("Locking Error\n"); | |
589 | } | |
590 | if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) { | |
591 | puts ("Block locked.\n"); | |
592 | retcode = ERR_PROTECTED; | |
593 | } | |
594 | if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS)) | |
595 | puts ("Vpp Low Error.\n"); | |
596 | } | |
597 | flash_write_cmd (info, sector, 0, info->cmd_reset); | |
598 | break; | |
599 | default: | |
600 | break; | |
601 | } | |
602 | return retcode; | |
603 | } | |
604 | ||
605 | /*----------------------------------------------------------------------- | |
606 | */ | |
607 | static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c) | |
608 | { | |
609 | #if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
610 | unsigned short w; | |
611 | unsigned int l; | |
612 | unsigned long long ll; | |
613 | #endif | |
614 | ||
615 | switch (info->portwidth) { | |
616 | case FLASH_CFI_8BIT: | |
617 | cword->c = c; | |
618 | break; | |
619 | case FLASH_CFI_16BIT: | |
620 | #if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
621 | w = c; | |
622 | w <<= 8; | |
623 | cword->w = (cword->w >> 8) | w; | |
624 | #else | |
625 | cword->w = (cword->w << 8) | c; | |
626 | #endif | |
627 | break; | |
628 | case FLASH_CFI_32BIT: | |
629 | #if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
630 | l = c; | |
631 | l <<= 24; | |
632 | cword->l = (cword->l >> 8) | l; | |
633 | #else | |
634 | cword->l = (cword->l << 8) | c; | |
635 | #endif | |
636 | break; | |
637 | case FLASH_CFI_64BIT: | |
638 | #if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) | |
639 | ll = c; | |
640 | ll <<= 56; | |
641 | cword->ll = (cword->ll >> 8) | ll; | |
642 | #else | |
643 | cword->ll = (cword->ll << 8) | c; | |
644 | #endif | |
645 | break; | |
646 | } | |
647 | } | |
648 | ||
649 | /* | |
650 | * Loop through the sector table starting from the previously found sector. | |
651 | * Searches forwards or backwards, dependent on the passed address. | |
652 | */ | |
653 | static flash_sect_t find_sector (flash_info_t * info, ulong addr) | |
654 | { | |
655 | static flash_sect_t saved_sector = 0; /* previously found sector */ | |
656 | flash_sect_t sector = saved_sector; | |
657 | ||
658 | while ((info->start[sector] < addr) | |
659 | && (sector < info->sector_count - 1)) | |
660 | sector++; | |
661 | while ((info->start[sector] > addr) && (sector > 0)) | |
662 | /* | |
663 | * also decrements the sector in case of an overshot | |
664 | * in the first loop | |
665 | */ | |
666 | sector--; | |
667 | ||
668 | saved_sector = sector; | |
669 | return sector; | |
670 | } | |
671 | ||
672 | /*----------------------------------------------------------------------- | |
673 | */ | |
674 | static int flash_write_cfiword (flash_info_t * info, ulong dest, | |
675 | cfiword_t cword) | |
676 | { | |
677 | void *dstaddr = (void *)dest; | |
678 | int flag; | |
679 | flash_sect_t sect = 0; | |
680 | char sect_found = 0; | |
681 | ||
682 | /* Check if Flash is (sufficiently) erased */ | |
683 | switch (info->portwidth) { | |
684 | case FLASH_CFI_8BIT: | |
685 | flag = ((flash_read8(dstaddr) & cword.c) == cword.c); | |
686 | break; | |
687 | case FLASH_CFI_16BIT: | |
688 | flag = ((flash_read16(dstaddr) & cword.w) == cword.w); | |
689 | break; | |
690 | case FLASH_CFI_32BIT: | |
691 | flag = ((flash_read32(dstaddr) & cword.l) == cword.l); | |
692 | break; | |
693 | case FLASH_CFI_64BIT: | |
694 | flag = ((flash_read64(dstaddr) & cword.ll) == cword.ll); | |
695 | break; | |
696 | default: | |
697 | flag = 0; | |
698 | break; | |
699 | } | |
700 | if (!flag) | |
701 | return ERR_NOT_ERASED; | |
702 | ||
703 | /* Disable interrupts which might cause a timeout here */ | |
704 | flag = disable_interrupts (); | |
705 | ||
706 | switch (info->vendor) { | |
707 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
708 | case CFI_CMDSET_INTEL_EXTENDED: | |
709 | case CFI_CMDSET_INTEL_STANDARD: | |
710 | flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS); | |
711 | flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE); | |
712 | break; | |
713 | case CFI_CMDSET_AMD_EXTENDED: | |
714 | case CFI_CMDSET_AMD_STANDARD: | |
715 | sect = find_sector(info, dest); | |
716 | flash_unlock_seq (info, sect); | |
717 | flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_WRITE); | |
718 | sect_found = 1; | |
719 | break; | |
720 | #ifdef CONFIG_FLASH_CFI_LEGACY | |
721 | case CFI_CMDSET_AMD_LEGACY: | |
722 | sect = find_sector(info, dest); | |
723 | flash_unlock_seq (info, 0); | |
724 | flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE); | |
725 | sect_found = 1; | |
726 | break; | |
727 | #endif | |
728 | } | |
729 | ||
730 | switch (info->portwidth) { | |
731 | case FLASH_CFI_8BIT: | |
732 | flash_write8(cword.c, dstaddr); | |
733 | break; | |
734 | case FLASH_CFI_16BIT: | |
735 | flash_write16(cword.w, dstaddr); | |
736 | break; | |
737 | case FLASH_CFI_32BIT: | |
738 | flash_write32(cword.l, dstaddr); | |
739 | break; | |
740 | case FLASH_CFI_64BIT: | |
741 | flash_write64(cword.ll, dstaddr); | |
742 | break; | |
743 | } | |
744 | ||
745 | /* re-enable interrupts if necessary */ | |
746 | if (flag) | |
747 | enable_interrupts (); | |
748 | ||
749 | if (!sect_found) | |
750 | sect = find_sector (info, dest); | |
751 | ||
752 | return flash_full_status_check (info, sect, info->write_tout, "write"); | |
753 | } | |
754 | ||
755 | #ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE | |
756 | ||
757 | static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp, | |
758 | int len) | |
759 | { | |
760 | flash_sect_t sector; | |
761 | int cnt; | |
762 | int retcode; | |
763 | void *src = cp; | |
764 | void *dst = (void *)dest; | |
765 | void *dst2 = dst; | |
766 | int flag = 0; | |
767 | uint offset = 0; | |
768 | unsigned int shift; | |
769 | uchar write_cmd; | |
770 | ||
771 | switch (info->portwidth) { | |
772 | case FLASH_CFI_8BIT: | |
773 | shift = 0; | |
774 | break; | |
775 | case FLASH_CFI_16BIT: | |
776 | shift = 1; | |
777 | break; | |
778 | case FLASH_CFI_32BIT: | |
779 | shift = 2; | |
780 | break; | |
781 | case FLASH_CFI_64BIT: | |
782 | shift = 3; | |
783 | break; | |
784 | default: | |
785 | retcode = ERR_INVAL; | |
786 | goto out_unmap; | |
787 | } | |
788 | ||
789 | cnt = len >> shift; | |
790 | ||
791 | while ((cnt-- > 0) && (flag == 0)) { | |
792 | switch (info->portwidth) { | |
793 | case FLASH_CFI_8BIT: | |
794 | flag = ((flash_read8(dst2) & flash_read8(src)) == | |
795 | flash_read8(src)); | |
796 | src += 1, dst2 += 1; | |
797 | break; | |
798 | case FLASH_CFI_16BIT: | |
799 | flag = ((flash_read16(dst2) & flash_read16(src)) == | |
800 | flash_read16(src)); | |
801 | src += 2, dst2 += 2; | |
802 | break; | |
803 | case FLASH_CFI_32BIT: | |
804 | flag = ((flash_read32(dst2) & flash_read32(src)) == | |
805 | flash_read32(src)); | |
806 | src += 4, dst2 += 4; | |
807 | break; | |
808 | case FLASH_CFI_64BIT: | |
809 | flag = ((flash_read64(dst2) & flash_read64(src)) == | |
810 | flash_read64(src)); | |
811 | src += 8, dst2 += 8; | |
812 | break; | |
813 | } | |
814 | } | |
815 | if (!flag) { | |
816 | retcode = ERR_NOT_ERASED; | |
817 | goto out_unmap; | |
818 | } | |
819 | ||
820 | src = cp; | |
821 | sector = find_sector (info, dest); | |
822 | ||
823 | switch (info->vendor) { | |
824 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
825 | case CFI_CMDSET_INTEL_STANDARD: | |
826 | case CFI_CMDSET_INTEL_EXTENDED: | |
827 | write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ? | |
828 | FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER; | |
829 | flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); | |
830 | flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS); | |
831 | flash_write_cmd (info, sector, 0, write_cmd); | |
832 | retcode = flash_status_check (info, sector, | |
833 | info->buffer_write_tout, | |
834 | "write to buffer"); | |
835 | if (retcode == ERR_OK) { | |
836 | /* reduce the number of loops by the width of | |
837 | * the port */ | |
838 | cnt = len >> shift; | |
839 | flash_write_cmd (info, sector, 0, cnt - 1); | |
840 | while (cnt-- > 0) { | |
841 | switch (info->portwidth) { | |
842 | case FLASH_CFI_8BIT: | |
843 | flash_write8(flash_read8(src), dst); | |
844 | src += 1, dst += 1; | |
845 | break; | |
846 | case FLASH_CFI_16BIT: | |
847 | flash_write16(flash_read16(src), dst); | |
848 | src += 2, dst += 2; | |
849 | break; | |
850 | case FLASH_CFI_32BIT: | |
851 | flash_write32(flash_read32(src), dst); | |
852 | src += 4, dst += 4; | |
853 | break; | |
854 | case FLASH_CFI_64BIT: | |
855 | flash_write64(flash_read64(src), dst); | |
856 | src += 8, dst += 8; | |
857 | break; | |
858 | default: | |
859 | retcode = ERR_INVAL; | |
860 | goto out_unmap; | |
861 | } | |
862 | } | |
863 | flash_write_cmd (info, sector, 0, | |
864 | FLASH_CMD_WRITE_BUFFER_CONFIRM); | |
865 | retcode = flash_full_status_check ( | |
866 | info, sector, info->buffer_write_tout, | |
867 | "buffer write"); | |
868 | } | |
869 | ||
870 | break; | |
871 | ||
872 | case CFI_CMDSET_AMD_STANDARD: | |
873 | case CFI_CMDSET_AMD_EXTENDED: | |
874 | flash_unlock_seq(info,0); | |
875 | ||
876 | #ifdef CONFIG_FLASH_SPANSION_S29WS_N | |
877 | offset = ((unsigned long)dst - info->start[sector]) >> shift; | |
878 | #endif | |
879 | flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER); | |
880 | cnt = len >> shift; | |
881 | flash_write_cmd(info, sector, offset, cnt - 1); | |
882 | ||
883 | switch (info->portwidth) { | |
884 | case FLASH_CFI_8BIT: | |
885 | while (cnt-- > 0) { | |
886 | flash_write8(flash_read8(src), dst); | |
887 | src += 1, dst += 1; | |
888 | } | |
889 | break; | |
890 | case FLASH_CFI_16BIT: | |
891 | while (cnt-- > 0) { | |
892 | flash_write16(flash_read16(src), dst); | |
893 | src += 2, dst += 2; | |
894 | } | |
895 | break; | |
896 | case FLASH_CFI_32BIT: | |
897 | while (cnt-- > 0) { | |
898 | flash_write32(flash_read32(src), dst); | |
899 | src += 4, dst += 4; | |
900 | } | |
901 | break; | |
902 | case FLASH_CFI_64BIT: | |
903 | while (cnt-- > 0) { | |
904 | flash_write64(flash_read64(src), dst); | |
905 | src += 8, dst += 8; | |
906 | } | |
907 | break; | |
908 | default: | |
909 | retcode = ERR_INVAL; | |
910 | goto out_unmap; | |
911 | } | |
912 | ||
913 | flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM); | |
914 | retcode = flash_full_status_check (info, sector, | |
915 | info->buffer_write_tout, | |
916 | "buffer write"); | |
917 | break; | |
918 | ||
919 | default: | |
920 | debug ("Unknown Command Set\n"); | |
921 | retcode = ERR_INVAL; | |
922 | break; | |
923 | } | |
924 | ||
925 | out_unmap: | |
926 | return retcode; | |
927 | } | |
928 | #endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */ | |
929 | ||
930 | ||
931 | /*----------------------------------------------------------------------- | |
932 | */ | |
933 | int flash_erase (flash_info_t * info, int s_first, int s_last) | |
934 | { | |
935 | int rcode = 0; | |
936 | int prot; | |
937 | flash_sect_t sect; | |
938 | ||
939 | if (info->flash_id != FLASH_MAN_CFI) { | |
940 | puts ("Can't erase unknown flash type - aborted\n"); | |
941 | return 1; | |
942 | } | |
943 | if ((s_first < 0) || (s_first > s_last)) { | |
944 | puts ("- no sectors to erase\n"); | |
945 | return 1; | |
946 | } | |
947 | ||
948 | prot = 0; | |
949 | for (sect = s_first; sect <= s_last; ++sect) { | |
950 | if (info->protect[sect]) { | |
951 | prot++; | |
952 | } | |
953 | } | |
954 | if (prot) { | |
955 | printf ("- Warning: %d protected sectors will not be erased!\n", | |
956 | prot); | |
957 | } else if (flash_verbose) { | |
958 | putc ('\n'); | |
959 | } | |
960 | ||
961 | ||
962 | for (sect = s_first; sect <= s_last; sect++) { | |
963 | if (info->protect[sect] == 0) { /* not protected */ | |
964 | switch (info->vendor) { | |
965 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
966 | case CFI_CMDSET_INTEL_STANDARD: | |
967 | case CFI_CMDSET_INTEL_EXTENDED: | |
968 | flash_write_cmd (info, sect, 0, | |
969 | FLASH_CMD_CLEAR_STATUS); | |
970 | flash_write_cmd (info, sect, 0, | |
971 | FLASH_CMD_BLOCK_ERASE); | |
972 | flash_write_cmd (info, sect, 0, | |
973 | FLASH_CMD_ERASE_CONFIRM); | |
974 | break; | |
975 | case CFI_CMDSET_AMD_STANDARD: | |
976 | case CFI_CMDSET_AMD_EXTENDED: | |
977 | flash_unlock_seq (info, sect); | |
978 | flash_write_cmd (info, sect, | |
979 | info->addr_unlock1, | |
980 | AMD_CMD_ERASE_START); | |
981 | flash_unlock_seq (info, sect); | |
982 | flash_write_cmd (info, sect, 0, | |
983 | AMD_CMD_ERASE_SECTOR); | |
984 | break; | |
985 | #ifdef CONFIG_FLASH_CFI_LEGACY | |
986 | case CFI_CMDSET_AMD_LEGACY: | |
987 | flash_unlock_seq (info, 0); | |
988 | flash_write_cmd (info, 0, info->addr_unlock1, | |
989 | AMD_CMD_ERASE_START); | |
990 | flash_unlock_seq (info, 0); | |
991 | flash_write_cmd (info, sect, 0, | |
992 | AMD_CMD_ERASE_SECTOR); | |
993 | break; | |
994 | #endif | |
995 | default: | |
996 | debug ("Unkown flash vendor %d\n", | |
997 | info->vendor); | |
998 | break; | |
999 | } | |
1000 | ||
1001 | if (flash_full_status_check | |
1002 | (info, sect, info->erase_blk_tout, "erase")) { | |
1003 | rcode = 1; | |
1004 | } else if (flash_verbose) | |
1005 | putc ('.'); | |
1006 | } | |
1007 | } | |
1008 | ||
1009 | if (flash_verbose) | |
1010 | puts (" done\n"); | |
1011 | ||
1012 | return rcode; | |
1013 | } | |
1014 | ||
1015 | /*----------------------------------------------------------------------- | |
1016 | */ | |
1017 | void flash_print_info (flash_info_t * info) | |
1018 | { | |
1019 | int i; | |
1020 | ||
1021 | if (info->flash_id != FLASH_MAN_CFI) { | |
1022 | puts ("missing or unknown FLASH type\n"); | |
1023 | return; | |
1024 | } | |
1025 | ||
1026 | printf ("%s FLASH (%d x %d)", | |
1027 | info->name, | |
1028 | (info->portwidth << 3), (info->chipwidth << 3)); | |
1029 | if (info->size < 1024*1024) | |
1030 | printf (" Size: %ld kB in %d Sectors\n", | |
1031 | info->size >> 10, info->sector_count); | |
1032 | else | |
1033 | printf (" Size: %ld MB in %d Sectors\n", | |
1034 | info->size >> 20, info->sector_count); | |
1035 | printf (" "); | |
1036 | switch (info->vendor) { | |
1037 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
1038 | printf ("Intel Prog Regions"); | |
1039 | break; | |
1040 | case CFI_CMDSET_INTEL_STANDARD: | |
1041 | printf ("Intel Standard"); | |
1042 | break; | |
1043 | case CFI_CMDSET_INTEL_EXTENDED: | |
1044 | printf ("Intel Extended"); | |
1045 | break; | |
1046 | case CFI_CMDSET_AMD_STANDARD: | |
1047 | printf ("AMD Standard"); | |
1048 | break; | |
1049 | case CFI_CMDSET_AMD_EXTENDED: | |
1050 | printf ("AMD Extended"); | |
1051 | break; | |
1052 | #ifdef CONFIG_FLASH_CFI_LEGACY | |
1053 | case CFI_CMDSET_AMD_LEGACY: | |
1054 | printf ("AMD Legacy"); | |
1055 | break; | |
1056 | #endif | |
1057 | default: | |
1058 | printf ("Unknown (%d)", info->vendor); | |
1059 | break; | |
1060 | } | |
1061 | printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x%02X", | |
1062 | info->manufacturer_id, info->device_id); | |
1063 | if (info->device_id == 0x7E) { | |
1064 | printf("%04X", info->device_id2); | |
1065 | } | |
1066 | printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n", | |
1067 | info->erase_blk_tout, | |
1068 | info->write_tout); | |
1069 | if (info->buffer_size > 1) { | |
1070 | printf (" Buffer write timeout: %ld ms, " | |
1071 | "buffer size: %d bytes\n", | |
1072 | info->buffer_write_tout, | |
1073 | info->buffer_size); | |
1074 | } | |
1075 | ||
1076 | puts ("\n Sector Start Addresses:"); | |
1077 | for (i = 0; i < info->sector_count; ++i) { | |
1078 | if ((i % 5) == 0) | |
1079 | printf ("\n"); | |
1080 | #ifdef CONFIG_SYS_FLASH_EMPTY_INFO | |
1081 | int k; | |
1082 | int size; | |
1083 | int erased; | |
1084 | volatile unsigned long *flash; | |
1085 | ||
1086 | /* | |
1087 | * Check if whole sector is erased | |
1088 | */ | |
1089 | size = flash_sector_size(info, i); | |
1090 | erased = 1; | |
1091 | flash = (volatile unsigned long *) info->start[i]; | |
1092 | size = size >> 2; /* divide by 4 for longword access */ | |
1093 | for (k = 0; k < size; k++) { | |
1094 | if (*flash++ != 0xffffffff) { | |
1095 | erased = 0; | |
1096 | break; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | /* print empty and read-only info */ | |
1101 | printf (" %08lX %c %s ", | |
1102 | info->start[i], | |
1103 | erased ? 'E' : ' ', | |
1104 | info->protect[i] ? "RO" : " "); | |
1105 | #else /* ! CONFIG_SYS_FLASH_EMPTY_INFO */ | |
1106 | printf (" %08lX %s ", | |
1107 | info->start[i], | |
1108 | info->protect[i] ? "RO" : " "); | |
1109 | #endif | |
1110 | } | |
1111 | putc ('\n'); | |
1112 | return; | |
1113 | } | |
1114 | ||
1115 | /*----------------------------------------------------------------------- | |
1116 | * This is used in a few places in write_buf() to show programming | |
1117 | * progress. Making it a function is nasty because it needs to do side | |
1118 | * effect updates to digit and dots. Repeated code is nasty too, so | |
1119 | * we define it once here. | |
1120 | */ | |
1121 | #ifdef CONFIG_FLASH_SHOW_PROGRESS | |
1122 | #define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) \ | |
1123 | if (flash_verbose) { \ | |
1124 | dots -= dots_sub; \ | |
1125 | if ((scale > 0) && (dots <= 0)) { \ | |
1126 | if ((digit % 5) == 0) \ | |
1127 | printf ("%d", digit / 5); \ | |
1128 | else \ | |
1129 | putc ('.'); \ | |
1130 | digit--; \ | |
1131 | dots += scale; \ | |
1132 | } \ | |
1133 | } | |
1134 | #else | |
1135 | #define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) | |
1136 | #endif | |
1137 | ||
1138 | /*----------------------------------------------------------------------- | |
1139 | * Copy memory to flash, returns: | |
1140 | * 0 - OK | |
1141 | * 1 - write timeout | |
1142 | * 2 - Flash not erased | |
1143 | */ | |
1144 | int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) | |
1145 | { | |
1146 | ulong wp; | |
1147 | uchar *p; | |
1148 | int aln; | |
1149 | cfiword_t cword; | |
1150 | int i, rc; | |
1151 | #ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE | |
1152 | int buffered_size; | |
1153 | #endif | |
1154 | #ifdef CONFIG_FLASH_SHOW_PROGRESS | |
1155 | int digit = CONFIG_FLASH_SHOW_PROGRESS; | |
1156 | int scale = 0; | |
1157 | int dots = 0; | |
1158 | ||
1159 | /* | |
1160 | * Suppress if there are fewer than CONFIG_FLASH_SHOW_PROGRESS writes. | |
1161 | */ | |
1162 | if (cnt >= CONFIG_FLASH_SHOW_PROGRESS) { | |
1163 | scale = (int)((cnt + CONFIG_FLASH_SHOW_PROGRESS - 1) / | |
1164 | CONFIG_FLASH_SHOW_PROGRESS); | |
1165 | } | |
1166 | #endif | |
1167 | ||
1168 | /* get lower aligned address */ | |
1169 | wp = (addr & ~(info->portwidth - 1)); | |
1170 | ||
1171 | /* handle unaligned start */ | |
1172 | if ((aln = addr - wp) != 0) { | |
1173 | cword.l = 0; | |
1174 | p = (uchar *)wp; | |
1175 | for (i = 0; i < aln; ++i) | |
1176 | flash_add_byte (info, &cword, flash_read8(p + i)); | |
1177 | ||
1178 | for (; (i < info->portwidth) && (cnt > 0); i++) { | |
1179 | flash_add_byte (info, &cword, *src++); | |
1180 | cnt--; | |
1181 | } | |
1182 | for (; (cnt == 0) && (i < info->portwidth); ++i) | |
1183 | flash_add_byte (info, &cword, flash_read8(p + i)); | |
1184 | ||
1185 | rc = flash_write_cfiword (info, wp, cword); | |
1186 | if (rc != 0) | |
1187 | return rc; | |
1188 | ||
1189 | wp += i; | |
1190 | FLASH_SHOW_PROGRESS(scale, dots, digit, i); | |
1191 | } | |
1192 | ||
1193 | /* handle the aligned part */ | |
1194 | #ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE | |
1195 | buffered_size = (info->portwidth / info->chipwidth); | |
1196 | buffered_size *= info->buffer_size; | |
1197 | while (cnt >= info->portwidth) { | |
1198 | /* prohibit buffer write when buffer_size is 1 */ | |
1199 | if (info->buffer_size == 1) { | |
1200 | cword.l = 0; | |
1201 | for (i = 0; i < info->portwidth; i++) | |
1202 | flash_add_byte (info, &cword, *src++); | |
1203 | if ((rc = flash_write_cfiword (info, wp, cword)) != 0) | |
1204 | return rc; | |
1205 | wp += info->portwidth; | |
1206 | cnt -= info->portwidth; | |
1207 | continue; | |
1208 | } | |
1209 | ||
1210 | /* write buffer until next buffered_size aligned boundary */ | |
1211 | i = buffered_size - (wp % buffered_size); | |
1212 | if (i > cnt) | |
1213 | i = cnt; | |
1214 | if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK) | |
1215 | return rc; | |
1216 | i -= i & (info->portwidth - 1); | |
1217 | wp += i; | |
1218 | src += i; | |
1219 | cnt -= i; | |
1220 | FLASH_SHOW_PROGRESS(scale, dots, digit, i); | |
1221 | } | |
1222 | #else | |
1223 | while (cnt >= info->portwidth) { | |
1224 | cword.l = 0; | |
1225 | for (i = 0; i < info->portwidth; i++) { | |
1226 | flash_add_byte (info, &cword, *src++); | |
1227 | } | |
1228 | if ((rc = flash_write_cfiword (info, wp, cword)) != 0) | |
1229 | return rc; | |
1230 | wp += info->portwidth; | |
1231 | cnt -= info->portwidth; | |
1232 | FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth); | |
1233 | } | |
1234 | #endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */ | |
1235 | ||
1236 | if (cnt == 0) { | |
1237 | return (0); | |
1238 | } | |
1239 | ||
1240 | /* | |
1241 | * handle unaligned tail bytes | |
1242 | */ | |
1243 | cword.l = 0; | |
1244 | p = (uchar *)wp; | |
1245 | for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) { | |
1246 | flash_add_byte (info, &cword, *src++); | |
1247 | --cnt; | |
1248 | } | |
1249 | for (; i < info->portwidth; ++i) | |
1250 | flash_add_byte (info, &cword, flash_read8(p + i)); | |
1251 | ||
1252 | return flash_write_cfiword (info, wp, cword); | |
1253 | } | |
1254 | ||
1255 | /*----------------------------------------------------------------------- | |
1256 | */ | |
1257 | #ifdef CONFIG_SYS_FLASH_PROTECTION | |
1258 | ||
1259 | int flash_real_protect (flash_info_t * info, long sector, int prot) | |
1260 | { | |
1261 | int retcode = 0; | |
1262 | ||
1263 | switch (info->vendor) { | |
1264 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
1265 | case CFI_CMDSET_INTEL_STANDARD: | |
1266 | case CFI_CMDSET_INTEL_EXTENDED: | |
1267 | flash_write_cmd (info, sector, 0, | |
1268 | FLASH_CMD_CLEAR_STATUS); | |
1269 | flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT); | |
1270 | if (prot) | |
1271 | flash_write_cmd (info, sector, 0, | |
1272 | FLASH_CMD_PROTECT_SET); | |
1273 | else | |
1274 | flash_write_cmd (info, sector, 0, | |
1275 | FLASH_CMD_PROTECT_CLEAR); | |
1276 | break; | |
1277 | case CFI_CMDSET_AMD_EXTENDED: | |
1278 | case CFI_CMDSET_AMD_STANDARD: | |
1279 | /* U-Boot only checks the first byte */ | |
1280 | if (info->manufacturer_id == (uchar)ATM_MANUFACT) { | |
1281 | if (prot) { | |
1282 | flash_unlock_seq (info, 0); | |
1283 | flash_write_cmd (info, 0, | |
1284 | info->addr_unlock1, | |
1285 | ATM_CMD_SOFTLOCK_START); | |
1286 | flash_unlock_seq (info, 0); | |
1287 | flash_write_cmd (info, sector, 0, | |
1288 | ATM_CMD_LOCK_SECT); | |
1289 | } else { | |
1290 | flash_write_cmd (info, 0, | |
1291 | info->addr_unlock1, | |
1292 | AMD_CMD_UNLOCK_START); | |
1293 | if (info->device_id == ATM_ID_BV6416) | |
1294 | flash_write_cmd (info, sector, | |
1295 | 0, ATM_CMD_UNLOCK_SECT); | |
1296 | } | |
1297 | } | |
1298 | break; | |
1299 | #ifdef CONFIG_FLASH_CFI_LEGACY | |
1300 | case CFI_CMDSET_AMD_LEGACY: | |
1301 | flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); | |
1302 | flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT); | |
1303 | if (prot) | |
1304 | flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET); | |
1305 | else | |
1306 | flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR); | |
1307 | #endif | |
1308 | }; | |
1309 | ||
1310 | if ((retcode = | |
1311 | flash_full_status_check (info, sector, info->erase_blk_tout, | |
1312 | prot ? "protect" : "unprotect")) == 0) { | |
1313 | ||
1314 | info->protect[sector] = prot; | |
1315 | ||
1316 | /* | |
1317 | * On some of Intel's flash chips (marked via legacy_unlock) | |
1318 | * unprotect unprotects all locking. | |
1319 | */ | |
1320 | if ((prot == 0) && (info->legacy_unlock)) { | |
1321 | flash_sect_t i; | |
1322 | ||
1323 | for (i = 0; i < info->sector_count; i++) { | |
1324 | if (info->protect[i]) | |
1325 | flash_real_protect (info, i, 1); | |
1326 | } | |
1327 | } | |
1328 | } | |
1329 | return retcode; | |
1330 | } | |
1331 | ||
1332 | /*----------------------------------------------------------------------- | |
1333 | * flash_read_user_serial - read the OneTimeProgramming cells | |
1334 | */ | |
1335 | void flash_read_user_serial (flash_info_t * info, void *buffer, int offset, | |
1336 | int len) | |
1337 | { | |
1338 | uchar *src; | |
1339 | uchar *dst; | |
1340 | ||
1341 | dst = buffer; | |
1342 | src = flash_map (info, 0, FLASH_OFFSET_USER_PROTECTION); | |
1343 | flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID); | |
1344 | memcpy (dst, src + offset, len); | |
1345 | flash_write_cmd (info, 0, 0, info->cmd_reset); | |
1346 | flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src); | |
1347 | } | |
1348 | ||
1349 | /* | |
1350 | * flash_read_factory_serial - read the device Id from the protection area | |
1351 | */ | |
1352 | void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset, | |
1353 | int len) | |
1354 | { | |
1355 | uchar *src; | |
1356 | ||
1357 | src = flash_map (info, 0, FLASH_OFFSET_INTEL_PROTECTION); | |
1358 | flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID); | |
1359 | memcpy (buffer, src + offset, len); | |
1360 | flash_write_cmd (info, 0, 0, info->cmd_reset); | |
1361 | flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src); | |
1362 | } | |
1363 | ||
1364 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
1365 | ||
1366 | /*----------------------------------------------------------------------- | |
1367 | * Reverse the order of the erase regions in the CFI QRY structure. | |
1368 | * This is needed for chips that are either a) correctly detected as | |
1369 | * top-boot, or b) buggy. | |
1370 | */ | |
1371 | static void cfi_reverse_geometry(struct cfi_qry *qry) | |
1372 | { | |
1373 | unsigned int i, j; | |
1374 | u32 tmp; | |
1375 | ||
1376 | for (i = 0, j = qry->num_erase_regions - 1; i < j; i++, j--) { | |
1377 | tmp = qry->erase_region_info[i]; | |
1378 | qry->erase_region_info[i] = qry->erase_region_info[j]; | |
1379 | qry->erase_region_info[j] = tmp; | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | /*----------------------------------------------------------------------- | |
1384 | * read jedec ids from device and set corresponding fields in info struct | |
1385 | * | |
1386 | * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct | |
1387 | * | |
1388 | */ | |
1389 | static void cmdset_intel_read_jedec_ids(flash_info_t *info) | |
1390 | { | |
1391 | flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); | |
1392 | flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID); | |
1393 | udelay(1000); /* some flash are slow to respond */ | |
1394 | info->manufacturer_id = flash_read_uchar (info, | |
1395 | FLASH_OFFSET_MANUFACTURER_ID); | |
1396 | info->device_id = flash_read_uchar (info, | |
1397 | FLASH_OFFSET_DEVICE_ID); | |
1398 | flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); | |
1399 | } | |
1400 | ||
1401 | static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry) | |
1402 | { | |
1403 | info->cmd_reset = FLASH_CMD_RESET; | |
1404 | ||
1405 | cmdset_intel_read_jedec_ids(info); | |
1406 | flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI); | |
1407 | ||
1408 | #ifdef CONFIG_SYS_FLASH_PROTECTION | |
1409 | /* read legacy lock/unlock bit from intel flash */ | |
1410 | if (info->ext_addr) { | |
1411 | info->legacy_unlock = flash_read_uchar (info, | |
1412 | info->ext_addr + 5) & 0x08; | |
1413 | } | |
1414 | #endif | |
1415 | ||
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | static void cmdset_amd_read_jedec_ids(flash_info_t *info) | |
1420 | { | |
1421 | ushort bankId = 0; | |
1422 | uchar manuId; | |
1423 | ||
1424 | flash_write_cmd(info, 0, 0, AMD_CMD_RESET); | |
1425 | flash_unlock_seq(info, 0); | |
1426 | flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID); | |
1427 | udelay(1000); /* some flash are slow to respond */ | |
1428 | ||
1429 | manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID); | |
1430 | /* JEDEC JEP106Z specifies ID codes up to bank 7 */ | |
1431 | while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) { | |
1432 | bankId += 0x100; | |
1433 | manuId = flash_read_uchar (info, | |
1434 | bankId | FLASH_OFFSET_MANUFACTURER_ID); | |
1435 | } | |
1436 | info->manufacturer_id = manuId; | |
1437 | ||
1438 | switch (info->chipwidth){ | |
1439 | case FLASH_CFI_8BIT: | |
1440 | info->device_id = flash_read_uchar (info, | |
1441 | FLASH_OFFSET_DEVICE_ID); | |
1442 | if (info->device_id == 0x7E) { | |
1443 | /* AMD 3-byte (expanded) device ids */ | |
1444 | info->device_id2 = flash_read_uchar (info, | |
1445 | FLASH_OFFSET_DEVICE_ID2); | |
1446 | info->device_id2 <<= 8; | |
1447 | info->device_id2 |= flash_read_uchar (info, | |
1448 | FLASH_OFFSET_DEVICE_ID3); | |
1449 | } | |
1450 | break; | |
1451 | case FLASH_CFI_16BIT: | |
1452 | info->device_id = flash_read_word (info, | |
1453 | FLASH_OFFSET_DEVICE_ID); | |
1454 | break; | |
1455 | default: | |
1456 | break; | |
1457 | } | |
1458 | flash_write_cmd(info, 0, 0, AMD_CMD_RESET); | |
1459 | } | |
1460 | ||
1461 | static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry) | |
1462 | { | |
1463 | info->cmd_reset = AMD_CMD_RESET; | |
1464 | ||
1465 | cmdset_amd_read_jedec_ids(info); | |
1466 | flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI); | |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | #ifdef CONFIG_FLASH_CFI_LEGACY | |
1472 | static void flash_read_jedec_ids (flash_info_t * info) | |
1473 | { | |
1474 | info->manufacturer_id = 0; | |
1475 | info->device_id = 0; | |
1476 | info->device_id2 = 0; | |
1477 | ||
1478 | switch (info->vendor) { | |
1479 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
1480 | case CFI_CMDSET_INTEL_STANDARD: | |
1481 | case CFI_CMDSET_INTEL_EXTENDED: | |
1482 | cmdset_intel_read_jedec_ids(info); | |
1483 | break; | |
1484 | case CFI_CMDSET_AMD_STANDARD: | |
1485 | case CFI_CMDSET_AMD_EXTENDED: | |
1486 | cmdset_amd_read_jedec_ids(info); | |
1487 | break; | |
1488 | default: | |
1489 | break; | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | /*----------------------------------------------------------------------- | |
1494 | * Call board code to request info about non-CFI flash. | |
1495 | * board_flash_get_legacy needs to fill in at least: | |
1496 | * info->portwidth, info->chipwidth and info->interface for Jedec probing. | |
1497 | */ | |
1498 | static int flash_detect_legacy(phys_addr_t base, int banknum) | |
1499 | { | |
1500 | flash_info_t *info = &flash_info[banknum]; | |
1501 | ||
1502 | if (board_flash_get_legacy(base, banknum, info)) { | |
1503 | /* board code may have filled info completely. If not, we | |
1504 | use JEDEC ID probing. */ | |
1505 | if (!info->vendor) { | |
1506 | int modes[] = { | |
1507 | CFI_CMDSET_AMD_STANDARD, | |
1508 | CFI_CMDSET_INTEL_STANDARD | |
1509 | }; | |
1510 | int i; | |
1511 | ||
1512 | for (i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) { | |
1513 | info->vendor = modes[i]; | |
1514 | info->start[0] = | |
1515 | (ulong)map_physmem(base, | |
1516 | info->portwidth, | |
1517 | MAP_NOCACHE); | |
1518 | if (info->portwidth == FLASH_CFI_8BIT | |
1519 | && info->interface == FLASH_CFI_X8X16) { | |
1520 | info->addr_unlock1 = 0x2AAA; | |
1521 | info->addr_unlock2 = 0x5555; | |
1522 | } else { | |
1523 | info->addr_unlock1 = 0x5555; | |
1524 | info->addr_unlock2 = 0x2AAA; | |
1525 | } | |
1526 | flash_read_jedec_ids(info); | |
1527 | debug("JEDEC PROBE: ID %x %x %x\n", | |
1528 | info->manufacturer_id, | |
1529 | info->device_id, | |
1530 | info->device_id2); | |
1531 | if (jedec_flash_match(info, info->start[0])) | |
1532 | break; | |
1533 | else | |
1534 | unmap_physmem((void *)info->start[0], | |
1535 | MAP_NOCACHE); | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | switch(info->vendor) { | |
1540 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
1541 | case CFI_CMDSET_INTEL_STANDARD: | |
1542 | case CFI_CMDSET_INTEL_EXTENDED: | |
1543 | info->cmd_reset = FLASH_CMD_RESET; | |
1544 | break; | |
1545 | case CFI_CMDSET_AMD_STANDARD: | |
1546 | case CFI_CMDSET_AMD_EXTENDED: | |
1547 | case CFI_CMDSET_AMD_LEGACY: | |
1548 | info->cmd_reset = AMD_CMD_RESET; | |
1549 | break; | |
1550 | } | |
1551 | info->flash_id = FLASH_MAN_CFI; | |
1552 | return 1; | |
1553 | } | |
1554 | return 0; /* use CFI */ | |
1555 | } | |
1556 | #else | |
1557 | static inline int flash_detect_legacy(phys_addr_t base, int banknum) | |
1558 | { | |
1559 | return 0; /* use CFI */ | |
1560 | } | |
1561 | #endif | |
1562 | ||
1563 | /*----------------------------------------------------------------------- | |
1564 | * detect if flash is compatible with the Common Flash Interface (CFI) | |
1565 | * http://www.jedec.org/download/search/jesd68.pdf | |
1566 | */ | |
1567 | static void flash_read_cfi (flash_info_t *info, void *buf, | |
1568 | unsigned int start, size_t len) | |
1569 | { | |
1570 | u8 *p = buf; | |
1571 | unsigned int i; | |
1572 | ||
1573 | for (i = 0; i < len; i++) | |
1574 | p[i] = flash_read_uchar(info, start + i); | |
1575 | } | |
1576 | ||
1577 | void __flash_cmd_reset(flash_info_t *info) | |
1578 | { | |
1579 | /* | |
1580 | * We do not yet know what kind of commandset to use, so we issue | |
1581 | * the reset command in both Intel and AMD variants, in the hope | |
1582 | * that AMD flash roms ignore the Intel command. | |
1583 | */ | |
1584 | flash_write_cmd(info, 0, 0, AMD_CMD_RESET); | |
1585 | flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); | |
1586 | } | |
1587 | void flash_cmd_reset(flash_info_t *info) | |
1588 | __attribute__((weak,alias("__flash_cmd_reset"))); | |
1589 | ||
1590 | static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) | |
1591 | { | |
1592 | int cfi_offset; | |
1593 | ||
1594 | /* Issue FLASH reset command */ | |
1595 | flash_cmd_reset(info); | |
1596 | ||
1597 | for (cfi_offset=0; | |
1598 | cfi_offset < sizeof(flash_offset_cfi) / sizeof(uint); | |
1599 | cfi_offset++) { | |
1600 | flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset], | |
1601 | FLASH_CMD_CFI); | |
1602 | if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q') | |
1603 | && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') | |
1604 | && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) { | |
1605 | flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP, | |
1606 | sizeof(struct cfi_qry)); | |
1607 | info->interface = le16_to_cpu(qry->interface_desc); | |
1608 | ||
1609 | info->cfi_offset = flash_offset_cfi[cfi_offset]; | |
1610 | debug ("device interface is %d\n", | |
1611 | info->interface); | |
1612 | debug ("found port %d chip %d ", | |
1613 | info->portwidth, info->chipwidth); | |
1614 | debug ("port %d bits chip %d bits\n", | |
1615 | info->portwidth << CFI_FLASH_SHIFT_WIDTH, | |
1616 | info->chipwidth << CFI_FLASH_SHIFT_WIDTH); | |
1617 | ||
1618 | /* calculate command offsets as in the Linux driver */ | |
1619 | info->addr_unlock1 = 0x555; | |
1620 | info->addr_unlock2 = 0x2aa; | |
1621 | ||
1622 | /* | |
1623 | * modify the unlock address if we are | |
1624 | * in compatibility mode | |
1625 | */ | |
1626 | if ( /* x8/x16 in x8 mode */ | |
1627 | ((info->chipwidth == FLASH_CFI_BY8) && | |
1628 | (info->interface == FLASH_CFI_X8X16)) || | |
1629 | /* x16/x32 in x16 mode */ | |
1630 | ((info->chipwidth == FLASH_CFI_BY16) && | |
1631 | (info->interface == FLASH_CFI_X16X32))) | |
1632 | { | |
1633 | info->addr_unlock1 = 0xaaa; | |
1634 | info->addr_unlock2 = 0x555; | |
1635 | } | |
1636 | ||
1637 | info->name = "CFI conformant"; | |
1638 | return 1; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) | |
1646 | { | |
1647 | debug ("flash detect cfi\n"); | |
1648 | ||
1649 | for (info->portwidth = CONFIG_SYS_FLASH_CFI_WIDTH; | |
1650 | info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) { | |
1651 | for (info->chipwidth = FLASH_CFI_BY8; | |
1652 | info->chipwidth <= info->portwidth; | |
1653 | info->chipwidth <<= 1) | |
1654 | if (__flash_detect_cfi(info, qry)) | |
1655 | return 1; | |
1656 | } | |
1657 | debug ("not found\n"); | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | /* | |
1662 | * Manufacturer-specific quirks. Add workarounds for geometry | |
1663 | * reversal, etc. here. | |
1664 | */ | |
1665 | static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry) | |
1666 | { | |
1667 | /* check if flash geometry needs reversal */ | |
1668 | if (qry->num_erase_regions > 1) { | |
1669 | /* reverse geometry if top boot part */ | |
1670 | if (info->cfi_version < 0x3131) { | |
1671 | /* CFI < 1.1, try to guess from device id */ | |
1672 | if ((info->device_id & 0x80) != 0) | |
1673 | cfi_reverse_geometry(qry); | |
1674 | } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) { | |
1675 | /* CFI >= 1.1, deduct from top/bottom flag */ | |
1676 | /* note: ext_addr is valid since cfi_version > 0 */ | |
1677 | cfi_reverse_geometry(qry); | |
1678 | } | |
1679 | } | |
1680 | } | |
1681 | ||
1682 | static void flash_fixup_atmel(flash_info_t *info, struct cfi_qry *qry) | |
1683 | { | |
1684 | int reverse_geometry = 0; | |
1685 | ||
1686 | /* Check the "top boot" bit in the PRI */ | |
1687 | if (info->ext_addr && !(flash_read_uchar(info, info->ext_addr + 6) & 1)) | |
1688 | reverse_geometry = 1; | |
1689 | ||
1690 | /* AT49BV6416(T) list the erase regions in the wrong order. | |
1691 | * However, the device ID is identical with the non-broken | |
1692 | * AT49BV642D they differ in the high byte. | |
1693 | */ | |
1694 | if (info->device_id == 0xd6 || info->device_id == 0xd2) | |
1695 | reverse_geometry = !reverse_geometry; | |
1696 | ||
1697 | if (reverse_geometry) | |
1698 | cfi_reverse_geometry(qry); | |
1699 | } | |
1700 | ||
1701 | static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry) | |
1702 | { | |
1703 | /* check if flash geometry needs reversal */ | |
1704 | if (qry->num_erase_regions > 1) { | |
1705 | /* reverse geometry if top boot part */ | |
1706 | if (info->cfi_version < 0x3131) { | |
1707 | /* CFI < 1.1, guess by device id (M29W320{DT,ET} only) */ | |
1708 | if (info->device_id == 0x22CA || | |
1709 | info->device_id == 0x2256) { | |
1710 | cfi_reverse_geometry(qry); | |
1711 | } | |
1712 | } | |
1713 | } | |
1714 | } | |
1715 | ||
1716 | /* | |
1717 | * The following code cannot be run from FLASH! | |
1718 | * | |
1719 | */ | |
1720 | ulong flash_get_size (phys_addr_t base, int banknum) | |
1721 | { | |
1722 | flash_info_t *info = &flash_info[banknum]; | |
1723 | int i, j; | |
1724 | flash_sect_t sect_cnt; | |
1725 | phys_addr_t sector; | |
1726 | unsigned long tmp; | |
1727 | int size_ratio; | |
1728 | uchar num_erase_regions; | |
1729 | int erase_region_size; | |
1730 | int erase_region_count; | |
1731 | struct cfi_qry qry; | |
1732 | ||
1733 | memset(&qry, 0, sizeof(qry)); | |
1734 | ||
1735 | info->ext_addr = 0; | |
1736 | info->cfi_version = 0; | |
1737 | #ifdef CONFIG_SYS_FLASH_PROTECTION | |
1738 | info->legacy_unlock = 0; | |
1739 | #endif | |
1740 | ||
1741 | info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE); | |
1742 | ||
1743 | if (flash_detect_cfi (info, &qry)) { | |
1744 | info->vendor = le16_to_cpu(qry.p_id); | |
1745 | info->ext_addr = le16_to_cpu(qry.p_adr); | |
1746 | num_erase_regions = qry.num_erase_regions; | |
1747 | ||
1748 | if (info->ext_addr) { | |
1749 | info->cfi_version = (ushort) flash_read_uchar (info, | |
1750 | info->ext_addr + 3) << 8; | |
1751 | info->cfi_version |= (ushort) flash_read_uchar (info, | |
1752 | info->ext_addr + 4); | |
1753 | } | |
1754 | ||
1755 | #ifdef DEBUG | |
1756 | flash_printqry (&qry); | |
1757 | #endif | |
1758 | ||
1759 | switch (info->vendor) { | |
1760 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
1761 | case CFI_CMDSET_INTEL_STANDARD: | |
1762 | case CFI_CMDSET_INTEL_EXTENDED: | |
1763 | cmdset_intel_init(info, &qry); | |
1764 | break; | |
1765 | case CFI_CMDSET_AMD_STANDARD: | |
1766 | case CFI_CMDSET_AMD_EXTENDED: | |
1767 | cmdset_amd_init(info, &qry); | |
1768 | break; | |
1769 | default: | |
1770 | printf("CFI: Unknown command set 0x%x\n", | |
1771 | info->vendor); | |
1772 | /* | |
1773 | * Unfortunately, this means we don't know how | |
1774 | * to get the chip back to Read mode. Might | |
1775 | * as well try an Intel-style reset... | |
1776 | */ | |
1777 | flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); | |
1778 | return 0; | |
1779 | } | |
1780 | ||
1781 | /* Do manufacturer-specific fixups */ | |
1782 | switch (info->manufacturer_id) { | |
1783 | case 0x0001: | |
1784 | flash_fixup_amd(info, &qry); | |
1785 | break; | |
1786 | case 0x001f: | |
1787 | flash_fixup_atmel(info, &qry); | |
1788 | break; | |
1789 | case 0x0020: | |
1790 | flash_fixup_stm(info, &qry); | |
1791 | break; | |
1792 | } | |
1793 | ||
1794 | debug ("manufacturer is %d\n", info->vendor); | |
1795 | debug ("manufacturer id is 0x%x\n", info->manufacturer_id); | |
1796 | debug ("device id is 0x%x\n", info->device_id); | |
1797 | debug ("device id2 is 0x%x\n", info->device_id2); | |
1798 | debug ("cfi version is 0x%04x\n", info->cfi_version); | |
1799 | ||
1800 | size_ratio = info->portwidth / info->chipwidth; | |
1801 | /* if the chip is x8/x16 reduce the ratio by half */ | |
1802 | if ((info->interface == FLASH_CFI_X8X16) | |
1803 | && (info->chipwidth == FLASH_CFI_BY8)) { | |
1804 | size_ratio >>= 1; | |
1805 | } | |
1806 | debug ("size_ratio %d port %d bits chip %d bits\n", | |
1807 | size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH, | |
1808 | info->chipwidth << CFI_FLASH_SHIFT_WIDTH); | |
1809 | debug ("found %d erase regions\n", num_erase_regions); | |
1810 | sect_cnt = 0; | |
1811 | sector = base; | |
1812 | for (i = 0; i < num_erase_regions; i++) { | |
1813 | if (i > NUM_ERASE_REGIONS) { | |
1814 | printf ("%d erase regions found, only %d used\n", | |
1815 | num_erase_regions, NUM_ERASE_REGIONS); | |
1816 | break; | |
1817 | } | |
1818 | ||
1819 | tmp = le32_to_cpu(qry.erase_region_info[i]); | |
1820 | debug("erase region %u: 0x%08lx\n", i, tmp); | |
1821 | ||
1822 | erase_region_count = (tmp & 0xffff) + 1; | |
1823 | tmp >>= 16; | |
1824 | erase_region_size = | |
1825 | (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128; | |
1826 | debug ("erase_region_count = %d erase_region_size = %d\n", | |
1827 | erase_region_count, erase_region_size); | |
1828 | for (j = 0; j < erase_region_count; j++) { | |
1829 | if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) { | |
1830 | printf("ERROR: too many flash sectors\n"); | |
1831 | break; | |
1832 | } | |
1833 | info->start[sect_cnt] = | |
1834 | (ulong)map_physmem(sector, | |
1835 | info->portwidth, | |
1836 | MAP_NOCACHE); | |
1837 | sector += (erase_region_size * size_ratio); | |
1838 | ||
1839 | /* | |
1840 | * Only read protection status from | |
1841 | * supported devices (intel...) | |
1842 | */ | |
1843 | switch (info->vendor) { | |
1844 | case CFI_CMDSET_INTEL_PROG_REGIONS: | |
1845 | case CFI_CMDSET_INTEL_EXTENDED: | |
1846 | case CFI_CMDSET_INTEL_STANDARD: | |
1847 | info->protect[sect_cnt] = | |
1848 | flash_isset (info, sect_cnt, | |
1849 | FLASH_OFFSET_PROTECT, | |
1850 | FLASH_STATUS_PROTECT); | |
1851 | break; | |
1852 | default: | |
1853 | /* default: not protected */ | |
1854 | info->protect[sect_cnt] = 0; | |
1855 | } | |
1856 | ||
1857 | sect_cnt++; | |
1858 | } | |
1859 | } | |
1860 | ||
1861 | info->sector_count = sect_cnt; | |
1862 | info->size = 1 << qry.dev_size; | |
1863 | /* multiply the size by the number of chips */ | |
1864 | info->size *= size_ratio; | |
1865 | info->buffer_size = 1 << le16_to_cpu(qry.max_buf_write_size); | |
1866 | tmp = 1 << qry.block_erase_timeout_typ; | |
1867 | info->erase_blk_tout = tmp * | |
1868 | (1 << qry.block_erase_timeout_max); | |
1869 | tmp = (1 << qry.buf_write_timeout_typ) * | |
1870 | (1 << qry.buf_write_timeout_max); | |
1871 | ||
1872 | /* round up when converting to ms */ | |
1873 | info->buffer_write_tout = (tmp + 999) / 1000; | |
1874 | tmp = (1 << qry.word_write_timeout_typ) * | |
1875 | (1 << qry.word_write_timeout_max); | |
1876 | /* round up when converting to ms */ | |
1877 | info->write_tout = (tmp + 999) / 1000; | |
1878 | info->flash_id = FLASH_MAN_CFI; | |
1879 | if ((info->interface == FLASH_CFI_X8X16) && | |
1880 | (info->chipwidth == FLASH_CFI_BY8)) { | |
1881 | /* XXX - Need to test on x8/x16 in parallel. */ | |
1882 | info->portwidth >>= 1; | |
1883 | } | |
1884 | ||
1885 | flash_write_cmd (info, 0, 0, info->cmd_reset); | |
1886 | } | |
1887 | ||
1888 | return (info->size); | |
1889 | } | |
1890 | ||
1891 | void flash_set_verbose(uint v) | |
1892 | { | |
1893 | flash_verbose = v; | |
1894 | } | |
1895 | ||
1896 | /*----------------------------------------------------------------------- | |
1897 | */ | |
1898 | unsigned long flash_init (void) | |
1899 | { | |
1900 | unsigned long size = 0; | |
1901 | int i; | |
1902 | #if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST) | |
1903 | struct apl_s { | |
1904 | ulong start; | |
1905 | ulong size; | |
1906 | } apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST; | |
1907 | #endif | |
1908 | ||
1909 | #ifdef CONFIG_SYS_FLASH_PROTECTION | |
1910 | /* read environment from EEPROM */ | |
1911 | char s[64]; | |
1912 | getenv_r ("unlock", s, sizeof(s)); | |
1913 | #endif | |
1914 | ||
1915 | #define BANK_BASE(i) (((phys_addr_t [CFI_MAX_FLASH_BANKS])CONFIG_SYS_FLASH_BANKS_LIST)[i]) | |
1916 | ||
1917 | /* Init: no FLASHes known */ | |
1918 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { | |
1919 | flash_info[i].flash_id = FLASH_UNKNOWN; | |
1920 | ||
1921 | if (!flash_detect_legacy (BANK_BASE(i), i)) | |
1922 | flash_get_size (BANK_BASE(i), i); | |
1923 | size += flash_info[i].size; | |
1924 | if (flash_info[i].flash_id == FLASH_UNKNOWN) { | |
1925 | #ifndef CONFIG_SYS_FLASH_QUIET_TEST | |
1926 | printf ("## Unknown FLASH on Bank %d " | |
1927 | "- Size = 0x%08lx = %ld MB\n", | |
1928 | i+1, flash_info[i].size, | |
1929 | flash_info[i].size << 20); | |
1930 | #endif /* CONFIG_SYS_FLASH_QUIET_TEST */ | |
1931 | } | |
1932 | #ifdef CONFIG_SYS_FLASH_PROTECTION | |
1933 | else if ((s != NULL) && (strcmp(s, "yes") == 0)) { | |
1934 | /* | |
1935 | * Only the U-Boot image and it's environment | |
1936 | * is protected, all other sectors are | |
1937 | * unprotected (unlocked) if flash hardware | |
1938 | * protection is used (CONFIG_SYS_FLASH_PROTECTION) | |
1939 | * and the environment variable "unlock" is | |
1940 | * set to "yes". | |
1941 | */ | |
1942 | if (flash_info[i].legacy_unlock) { | |
1943 | int k; | |
1944 | ||
1945 | /* | |
1946 | * Disable legacy_unlock temporarily, | |
1947 | * since flash_real_protect would | |
1948 | * relock all other sectors again | |
1949 | * otherwise. | |
1950 | */ | |
1951 | flash_info[i].legacy_unlock = 0; | |
1952 | ||
1953 | /* | |
1954 | * Legacy unlocking (e.g. Intel J3) -> | |
1955 | * unlock only one sector. This will | |
1956 | * unlock all sectors. | |
1957 | */ | |
1958 | flash_real_protect (&flash_info[i], 0, 0); | |
1959 | ||
1960 | flash_info[i].legacy_unlock = 1; | |
1961 | ||
1962 | /* | |
1963 | * Manually mark other sectors as | |
1964 | * unlocked (unprotected) | |
1965 | */ | |
1966 | for (k = 1; k < flash_info[i].sector_count; k++) | |
1967 | flash_info[i].protect[k] = 0; | |
1968 | } else { | |
1969 | /* | |
1970 | * No legancy unlocking -> unlock all sectors | |
1971 | */ | |
1972 | flash_protect (FLAG_PROTECT_CLEAR, | |
1973 | flash_info[i].start[0], | |
1974 | flash_info[i].start[0] | |
1975 | + flash_info[i].size - 1, | |
1976 | &flash_info[i]); | |
1977 | } | |
1978 | } | |
1979 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
1980 | } | |
1981 | ||
1982 | /* Monitor protection ON by default */ | |
1983 | #if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) && \ | |
1984 | (!defined(CONFIG_MONITOR_IS_IN_RAM)) | |
1985 | flash_protect (FLAG_PROTECT_SET, | |
1986 | CONFIG_SYS_MONITOR_BASE, | |
1987 | CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, | |
1988 | flash_get_info(CONFIG_SYS_MONITOR_BASE)); | |
1989 | #endif | |
1990 | ||
1991 | /* Environment protection ON by default */ | |
1992 | #ifdef CONFIG_ENV_IS_IN_FLASH | |
1993 | flash_protect (FLAG_PROTECT_SET, | |
1994 | CONFIG_ENV_ADDR, | |
1995 | CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, | |
1996 | flash_get_info(CONFIG_ENV_ADDR)); | |
1997 | #endif | |
1998 | ||
1999 | /* Redundant environment protection ON by default */ | |
2000 | #ifdef CONFIG_ENV_ADDR_REDUND | |
2001 | flash_protect (FLAG_PROTECT_SET, | |
2002 | CONFIG_ENV_ADDR_REDUND, | |
2003 | CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, | |
2004 | flash_get_info(CONFIG_ENV_ADDR_REDUND)); | |
2005 | #endif | |
2006 | ||
2007 | #if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST) | |
2008 | for (i = 0; i < (sizeof(apl) / sizeof(struct apl_s)); i++) { | |
2009 | debug("autoprotecting from %08x to %08x\n", | |
2010 | apl[i].start, apl[i].start + apl[i].size - 1); | |
2011 | flash_protect (FLAG_PROTECT_SET, | |
2012 | apl[i].start, | |
2013 | apl[i].start + apl[i].size - 1, | |
2014 | flash_get_info(apl[i].start)); | |
2015 | } | |
2016 | #endif | |
2017 | ||
2018 | #ifdef CONFIG_FLASH_CFI_MTD | |
2019 | cfi_mtd_init(); | |
2020 | #endif | |
2021 | ||
2022 | return (size); | |
2023 | } |