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Commit | Line | Data |
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04a85b3b WD |
1 | /* |
2 | * (C) Copyright 2000-2004 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
04a85b3b WD |
6 | */ |
7 | ||
8 | #include <common.h> | |
9 | #include <mpc8xx.h> | |
10 | ||
6d0f6bcf | 11 | flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
04a85b3b WD |
12 | |
13 | /*----------------------------------------------------------------------- | |
14 | * Functions | |
15 | */ | |
16 | static ulong flash_get_size(vu_long * addr, flash_info_t * info); | |
17 | static int write_byte(flash_info_t * info, ulong dest, uchar data); | |
18 | static void flash_get_offsets(ulong base, flash_info_t * info); | |
19 | ||
20 | /*----------------------------------------------------------------------- | |
21 | */ | |
22 | ||
23 | unsigned long flash_init(void) | |
24 | { | |
6d0f6bcf | 25 | volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; |
04a85b3b WD |
26 | volatile memctl8xx_t *memctl = &immap->im_memctl; |
27 | unsigned long size; | |
c26e454d WD |
28 | #if CONFIG_NETPHONE_VERSION == 2 |
29 | unsigned long size1; | |
30 | #endif | |
04a85b3b WD |
31 | int i; |
32 | ||
33 | /* Init: no FLASHes known */ | |
6d0f6bcf | 34 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) |
04a85b3b WD |
35 | flash_info[i].flash_id = FLASH_UNKNOWN; |
36 | ||
37 | size = flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]); | |
38 | ||
39 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { | |
40 | printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", | |
41 | size, size << 20); | |
42 | } | |
43 | ||
44 | /* Remap FLASH according to real size */ | |
6d0f6bcf JCPV |
45 | memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-size & 0xFFFF8000); |
46 | memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | (memctl->memc_br0 & ~(BR_BA_MSK)); | |
04a85b3b WD |
47 | |
48 | /* Re-do sizing to get full correct info */ | |
6d0f6bcf | 49 | size = flash_get_size((vu_long *) CONFIG_SYS_FLASH_BASE, &flash_info[0]); |
04a85b3b | 50 | |
6d0f6bcf | 51 | flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]); |
04a85b3b WD |
52 | |
53 | /* monitor protection ON by default */ | |
54 | flash_protect(FLAG_PROTECT_SET, | |
6d0f6bcf | 55 | CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, |
04a85b3b WD |
56 | &flash_info[0]); |
57 | ||
58 | flash_protect ( FLAG_PROTECT_SET, | |
0e8d1586 | 59 | CONFIG_ENV_ADDR, |
dfcd7f21 | 60 | CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, |
04a85b3b WD |
61 | &flash_info[0]); |
62 | ||
0e8d1586 | 63 | #ifdef CONFIG_ENV_ADDR_REDUND |
04a85b3b | 64 | flash_protect ( FLAG_PROTECT_SET, |
0e8d1586 | 65 | CONFIG_ENV_ADDR_REDUND, |
dfcd7f21 | 66 | CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, |
04a85b3b WD |
67 | &flash_info[0]); |
68 | #endif | |
69 | ||
70 | flash_info[0].size = size; | |
71 | ||
c26e454d WD |
72 | #if CONFIG_NETPHONE_VERSION == 2 |
73 | size1 = flash_get_size((vu_long *) FLASH_BASE4_PRELIM, &flash_info[1]); | |
79fa88f3 WD |
74 | if (size1 > 0) { |
75 | if (flash_info[1].flash_id == FLASH_UNKNOWN) | |
76 | printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n", size1, size1 << 20); | |
c26e454d | 77 | |
79fa88f3 | 78 | /* Remap FLASH according to real size */ |
6d0f6bcf JCPV |
79 | memctl->memc_or4 = CONFIG_SYS_OR_TIMING_FLASH | (-size1 & 0xFFFF8000); |
80 | memctl->memc_br4 = (CONFIG_SYS_FLASH_BASE4 & BR_BA_MSK) | (memctl->memc_br4 & ~(BR_BA_MSK)); | |
c26e454d | 81 | |
79fa88f3 | 82 | /* Re-do sizing to get full correct info */ |
6d0f6bcf | 83 | size1 = flash_get_size((vu_long *) CONFIG_SYS_FLASH_BASE4, &flash_info[1]); |
c26e454d | 84 | |
6d0f6bcf | 85 | flash_get_offsets(CONFIG_SYS_FLASH_BASE4, &flash_info[1]); |
c26e454d | 86 | |
79fa88f3 WD |
87 | size += size1; |
88 | } else | |
89 | memctl->memc_br4 &= ~BR_V; | |
c26e454d WD |
90 | #endif |
91 | ||
04a85b3b WD |
92 | return (size); |
93 | } | |
94 | ||
95 | /*----------------------------------------------------------------------- | |
96 | */ | |
97 | static void flash_get_offsets(ulong base, flash_info_t * info) | |
98 | { | |
99 | int i; | |
100 | ||
101 | /* set up sector start address table */ | |
102 | if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { | |
103 | for (i = 0; i < info->sector_count; i++) { | |
104 | info->start[i] = base + (i * 0x00010000); | |
105 | } | |
106 | } else if (info->flash_id & FLASH_BTYPE) { | |
107 | /* set sector offsets for bottom boot block type */ | |
108 | info->start[0] = base + 0x00000000; | |
109 | info->start[1] = base + 0x00004000; | |
110 | info->start[2] = base + 0x00006000; | |
111 | info->start[3] = base + 0x00008000; | |
112 | for (i = 4; i < info->sector_count; i++) { | |
113 | info->start[i] = base + (i * 0x00010000) - 0x00030000; | |
114 | } | |
115 | } else { | |
116 | /* set sector offsets for top boot block type */ | |
117 | i = info->sector_count - 1; | |
118 | info->start[i--] = base + info->size - 0x00004000; | |
119 | info->start[i--] = base + info->size - 0x00006000; | |
120 | info->start[i--] = base + info->size - 0x00008000; | |
121 | for (; i >= 0; i--) { | |
122 | info->start[i] = base + i * 0x00010000; | |
123 | } | |
124 | } | |
125 | } | |
126 | ||
127 | /*----------------------------------------------------------------------- | |
128 | */ | |
129 | void flash_print_info(flash_info_t * info) | |
130 | { | |
131 | int i; | |
132 | ||
133 | if (info->flash_id == FLASH_UNKNOWN) { | |
134 | printf("missing or unknown FLASH type\n"); | |
135 | return; | |
136 | } | |
137 | ||
138 | switch (info->flash_id & FLASH_VENDMASK) { | |
139 | case FLASH_MAN_AMD: | |
140 | printf("AMD "); | |
141 | break; | |
142 | case FLASH_MAN_FUJ: | |
143 | printf("FUJITSU "); | |
144 | break; | |
145 | case FLASH_MAN_MX: | |
146 | printf("MXIC "); | |
147 | break; | |
148 | default: | |
149 | printf("Unknown Vendor "); | |
150 | break; | |
151 | } | |
152 | ||
153 | switch (info->flash_id & FLASH_TYPEMASK) { | |
154 | case FLASH_AM040: | |
155 | printf("AM29LV040B (4 Mbit, bottom boot sect)\n"); | |
156 | break; | |
157 | case FLASH_AM400B: | |
158 | printf("AM29LV400B (4 Mbit, bottom boot sect)\n"); | |
159 | break; | |
160 | case FLASH_AM400T: | |
161 | printf("AM29LV400T (4 Mbit, top boot sector)\n"); | |
162 | break; | |
163 | case FLASH_AM800B: | |
164 | printf("AM29LV800B (8 Mbit, bottom boot sect)\n"); | |
165 | break; | |
166 | case FLASH_AM800T: | |
167 | printf("AM29LV800T (8 Mbit, top boot sector)\n"); | |
168 | break; | |
169 | case FLASH_AM160B: | |
170 | printf("AM29LV160B (16 Mbit, bottom boot sect)\n"); | |
171 | break; | |
172 | case FLASH_AM160T: | |
173 | printf("AM29LV160T (16 Mbit, top boot sector)\n"); | |
174 | break; | |
175 | case FLASH_AM320B: | |
176 | printf("AM29LV320B (32 Mbit, bottom boot sect)\n"); | |
177 | break; | |
178 | case FLASH_AM320T: | |
179 | printf("AM29LV320T (32 Mbit, top boot sector)\n"); | |
180 | break; | |
181 | default: | |
182 | printf("Unknown Chip Type\n"); | |
183 | break; | |
184 | } | |
185 | ||
186 | printf(" Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count); | |
187 | ||
188 | printf(" Sector Start Addresses:"); | |
189 | for (i = 0; i < info->sector_count; ++i) { | |
190 | if ((i % 5) == 0) | |
191 | printf("\n "); | |
192 | printf(" %08lX%s", info->start[i], info->protect[i] ? " (RO)" : " "); | |
193 | } | |
194 | printf("\n"); | |
195 | } | |
196 | ||
197 | /*----------------------------------------------------------------------- | |
198 | */ | |
199 | ||
200 | ||
201 | /*----------------------------------------------------------------------- | |
202 | */ | |
203 | ||
204 | /* | |
205 | * The following code cannot be run from FLASH! | |
206 | */ | |
207 | ||
208 | static ulong flash_get_size(vu_long * addr, flash_info_t * info) | |
209 | { | |
210 | short i; | |
211 | uchar mid; | |
212 | uchar pid; | |
213 | vu_char *caddr = (vu_char *) addr; | |
214 | ulong base = (ulong) addr; | |
215 | ||
216 | /* Write auto select command: read Manufacturer ID */ | |
217 | caddr[0x0555] = 0xAA; | |
218 | caddr[0x02AA] = 0x55; | |
219 | caddr[0x0555] = 0x90; | |
220 | ||
221 | mid = caddr[0]; | |
222 | switch (mid) { | |
223 | case (AMD_MANUFACT & 0xFF): | |
224 | info->flash_id = FLASH_MAN_AMD; | |
225 | break; | |
226 | case (FUJ_MANUFACT & 0xFF): | |
227 | info->flash_id = FLASH_MAN_FUJ; | |
228 | break; | |
229 | case (MX_MANUFACT & 0xFF): | |
230 | info->flash_id = FLASH_MAN_MX; | |
231 | break; | |
232 | case (STM_MANUFACT & 0xFF): | |
233 | info->flash_id = FLASH_MAN_STM; | |
234 | break; | |
235 | default: | |
236 | info->flash_id = FLASH_UNKNOWN; | |
237 | info->sector_count = 0; | |
238 | info->size = 0; | |
239 | return (0); /* no or unknown flash */ | |
240 | } | |
241 | ||
242 | pid = caddr[1]; /* device ID */ | |
243 | switch (pid) { | |
244 | case (AMD_ID_LV400T & 0xFF): | |
245 | info->flash_id += FLASH_AM400T; | |
246 | info->sector_count = 11; | |
247 | info->size = 0x00080000; | |
248 | break; /* => 512 kB */ | |
249 | ||
250 | case (AMD_ID_LV400B & 0xFF): | |
251 | info->flash_id += FLASH_AM400B; | |
252 | info->sector_count = 11; | |
253 | info->size = 0x00080000; | |
254 | break; /* => 512 kB */ | |
255 | ||
256 | case (AMD_ID_LV800T & 0xFF): | |
257 | info->flash_id += FLASH_AM800T; | |
258 | info->sector_count = 19; | |
259 | info->size = 0x00100000; | |
260 | break; /* => 1 MB */ | |
261 | ||
262 | case (AMD_ID_LV800B & 0xFF): | |
263 | info->flash_id += FLASH_AM800B; | |
264 | info->sector_count = 19; | |
265 | info->size = 0x00100000; | |
266 | break; /* => 1 MB */ | |
267 | ||
268 | case (AMD_ID_LV160T & 0xFF): | |
269 | info->flash_id += FLASH_AM160T; | |
270 | info->sector_count = 35; | |
271 | info->size = 0x00200000; | |
272 | break; /* => 2 MB */ | |
273 | ||
274 | case (AMD_ID_LV160B & 0xFF): | |
275 | info->flash_id += FLASH_AM160B; | |
276 | info->sector_count = 35; | |
277 | info->size = 0x00200000; | |
278 | break; /* => 2 MB */ | |
279 | ||
280 | case (AMD_ID_LV040B & 0xFF): | |
281 | info->flash_id += FLASH_AM040; | |
282 | info->sector_count = 8; | |
283 | info->size = 0x00080000; | |
284 | break; | |
285 | ||
286 | case (STM_ID_M29W040B & 0xFF): | |
287 | info->flash_id += FLASH_AM040; | |
288 | info->sector_count = 8; | |
289 | info->size = 0x00080000; | |
290 | break; | |
291 | ||
292 | #if 0 /* enable when device IDs are available */ | |
293 | case (AMD_ID_LV320T & 0xFF): | |
294 | info->flash_id += FLASH_AM320T; | |
295 | info->sector_count = 67; | |
296 | info->size = 0x00400000; | |
297 | break; /* => 4 MB */ | |
298 | ||
299 | case (AMD_ID_LV320B & 0xFF): | |
300 | info->flash_id += FLASH_AM320B; | |
301 | info->sector_count = 67; | |
302 | info->size = 0x00400000; | |
303 | break; /* => 4 MB */ | |
304 | #endif | |
305 | default: | |
306 | info->flash_id = FLASH_UNKNOWN; | |
307 | return (0); /* => no or unknown flash */ | |
308 | ||
309 | } | |
310 | ||
311 | printf(" "); | |
312 | /* set up sector start address table */ | |
313 | if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { | |
314 | for (i = 0; i < info->sector_count; i++) { | |
315 | info->start[i] = base + (i * 0x00010000); | |
316 | } | |
317 | } else if (info->flash_id & FLASH_BTYPE) { | |
318 | /* set sector offsets for bottom boot block type */ | |
319 | info->start[0] = base + 0x00000000; | |
320 | info->start[1] = base + 0x00004000; | |
321 | info->start[2] = base + 0x00006000; | |
322 | info->start[3] = base + 0x00008000; | |
323 | for (i = 4; i < info->sector_count; i++) { | |
324 | info->start[i] = base + (i * 0x00010000) - 0x00030000; | |
325 | } | |
326 | } else { | |
327 | /* set sector offsets for top boot block type */ | |
328 | i = info->sector_count - 1; | |
329 | info->start[i--] = base + info->size - 0x00004000; | |
330 | info->start[i--] = base + info->size - 0x00006000; | |
331 | info->start[i--] = base + info->size - 0x00008000; | |
332 | for (; i >= 0; i--) { | |
333 | info->start[i] = base + i * 0x00010000; | |
334 | } | |
335 | } | |
336 | ||
337 | /* check for protected sectors */ | |
338 | for (i = 0; i < info->sector_count; i++) { | |
339 | /* read sector protection: D0 = 1 if protected */ | |
340 | caddr = (volatile unsigned char *)(info->start[i]); | |
341 | info->protect[i] = caddr[2] & 1; | |
342 | } | |
343 | ||
344 | /* | |
345 | * Prevent writes to uninitialized FLASH. | |
346 | */ | |
347 | if (info->flash_id != FLASH_UNKNOWN) { | |
348 | caddr = (vu_char *) info->start[0]; | |
349 | ||
350 | caddr[0x0555] = 0xAA; | |
351 | caddr[0x02AA] = 0x55; | |
352 | caddr[0x0555] = 0xF0; | |
353 | ||
354 | udelay(20000); | |
355 | } | |
356 | ||
357 | return (info->size); | |
358 | } | |
359 | ||
360 | ||
361 | /*----------------------------------------------------------------------- | |
362 | */ | |
363 | ||
364 | int flash_erase(flash_info_t * info, int s_first, int s_last) | |
365 | { | |
366 | vu_char *addr = (vu_char *) (info->start[0]); | |
367 | int flag, prot, sect, l_sect; | |
368 | ulong start, now, last; | |
369 | ||
370 | if ((s_first < 0) || (s_first > s_last)) { | |
371 | if (info->flash_id == FLASH_UNKNOWN) { | |
372 | printf("- missing\n"); | |
373 | } else { | |
374 | printf("- no sectors to erase\n"); | |
375 | } | |
376 | return 1; | |
377 | } | |
378 | ||
379 | if ((info->flash_id == FLASH_UNKNOWN) || | |
380 | (info->flash_id > FLASH_AMD_COMP)) { | |
381 | printf("Can't erase unknown flash type %08lx - aborted\n", info->flash_id); | |
382 | return 1; | |
383 | } | |
384 | ||
385 | prot = 0; | |
386 | for (sect = s_first; sect <= s_last; ++sect) { | |
387 | if (info->protect[sect]) { | |
388 | prot++; | |
389 | } | |
390 | } | |
391 | ||
392 | if (prot) { | |
393 | printf("- Warning: %d protected sectors will not be erased!\n", prot); | |
394 | } else { | |
395 | printf("\n"); | |
396 | } | |
397 | ||
398 | l_sect = -1; | |
399 | ||
400 | /* Disable interrupts which might cause a timeout here */ | |
401 | flag = disable_interrupts(); | |
402 | ||
403 | addr[0x0555] = 0xAA; | |
404 | addr[0x02AA] = 0x55; | |
405 | addr[0x0555] = 0x80; | |
406 | addr[0x0555] = 0xAA; | |
407 | addr[0x02AA] = 0x55; | |
408 | ||
409 | /* Start erase on unprotected sectors */ | |
410 | for (sect = s_first; sect <= s_last; sect++) { | |
411 | if (info->protect[sect] == 0) { /* not protected */ | |
412 | addr = (vu_char *) (info->start[sect]); | |
413 | addr[0] = 0x30; | |
414 | l_sect = sect; | |
415 | } | |
416 | } | |
417 | ||
418 | /* re-enable interrupts if necessary */ | |
419 | if (flag) | |
420 | enable_interrupts(); | |
421 | ||
422 | /* wait at least 80us - let's wait 1 ms */ | |
423 | udelay(1000); | |
424 | ||
425 | /* | |
426 | * We wait for the last triggered sector | |
427 | */ | |
428 | if (l_sect < 0) | |
429 | goto DONE; | |
430 | ||
431 | start = get_timer(0); | |
432 | last = start; | |
433 | addr = (vu_char *) (info->start[l_sect]); | |
434 | while ((addr[0] & 0x80) != 0x80) { | |
6d0f6bcf | 435 | if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { |
04a85b3b WD |
436 | printf("Timeout\n"); |
437 | return 1; | |
438 | } | |
439 | /* show that we're waiting */ | |
440 | if ((now - last) > 1000) { /* every second */ | |
441 | putc('.'); | |
442 | last = now; | |
443 | } | |
444 | } | |
445 | ||
446 | DONE: | |
447 | /* reset to read mode */ | |
448 | addr = (vu_char *) info->start[0]; | |
449 | addr[0] = 0xF0; /* reset bank */ | |
450 | ||
451 | printf(" done\n"); | |
452 | return 0; | |
453 | } | |
454 | ||
455 | /*----------------------------------------------------------------------- | |
456 | * Copy memory to flash, returns: | |
457 | * 0 - OK | |
458 | * 1 - write timeout | |
459 | * 2 - Flash not erased | |
460 | */ | |
461 | ||
462 | int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt) | |
463 | { | |
464 | int rc; | |
465 | ||
466 | while (cnt > 0) { | |
467 | if ((rc = write_byte(info, addr++, *src++)) != 0) { | |
468 | return (rc); | |
469 | } | |
470 | --cnt; | |
471 | } | |
472 | ||
473 | return (0); | |
474 | } | |
475 | ||
476 | /*----------------------------------------------------------------------- | |
477 | * Write a word to Flash, returns: | |
478 | * 0 - OK | |
479 | * 1 - write timeout | |
480 | * 2 - Flash not erased | |
481 | */ | |
482 | static int write_byte(flash_info_t * info, ulong dest, uchar data) | |
483 | { | |
484 | vu_char *addr = (vu_char *) (info->start[0]); | |
485 | ulong start; | |
486 | int flag; | |
487 | ||
488 | /* Check if Flash is (sufficiently) erased */ | |
489 | if ((*((vu_char *) dest) & data) != data) { | |
490 | return (2); | |
491 | } | |
492 | /* Disable interrupts which might cause a timeout here */ | |
493 | flag = disable_interrupts(); | |
494 | ||
495 | addr[0x0555] = 0xAA; | |
496 | addr[0x02AA] = 0x55; | |
497 | addr[0x0555] = 0xA0; | |
498 | ||
499 | *((vu_char *) dest) = data; | |
500 | ||
501 | /* re-enable interrupts if necessary */ | |
502 | if (flag) | |
503 | enable_interrupts(); | |
504 | ||
505 | /* data polling for D7 */ | |
506 | start = get_timer(0); | |
507 | while ((*((vu_char *) dest) & 0x80) != (data & 0x80)) { | |
6d0f6bcf | 508 | if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { |
04a85b3b WD |
509 | return (1); |
510 | } | |
511 | } | |
512 | return (0); | |
513 | } |