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affae2bf WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
affae2bf WD |
6 | */ |
7 | ||
8 | #include <common.h> | |
9 | #include <mpc824x.h> | |
10 | ||
5a1aceb0 | 11 | #if defined(CONFIG_ENV_IS_IN_FLASH) |
0e8d1586 | 12 | # ifndef CONFIG_ENV_ADDR |
6d0f6bcf | 13 | # define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) |
affae2bf | 14 | # endif |
0e8d1586 JCPV |
15 | # ifndef CONFIG_ENV_SIZE |
16 | # define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE | |
affae2bf | 17 | # endif |
0e8d1586 JCPV |
18 | # ifndef CONFIG_ENV_SECT_SIZE |
19 | # define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE | |
affae2bf WD |
20 | # endif |
21 | #endif | |
22 | ||
23 | /*---------------------------------------------------------------------*/ | |
24 | #undef DEBUG_FLASH | |
25 | ||
26 | #ifdef DEBUG_FLASH | |
27 | #define DEBUGF(fmt,args...) printf(fmt ,##args) | |
28 | #else | |
29 | #define DEBUGF(fmt,args...) | |
30 | #endif | |
31 | /*---------------------------------------------------------------------*/ | |
32 | ||
6d0f6bcf | 33 | flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
affae2bf WD |
34 | |
35 | /*----------------------------------------------------------------------- | |
36 | * Functions | |
37 | */ | |
38 | static ulong flash_get_size (vu_char *addr, flash_info_t *info); | |
39 | static int write_data (flash_info_t *info, uchar *dest, uchar data); | |
40 | static void flash_get_offsets (ulong base, flash_info_t *info); | |
41 | ||
42 | ||
affae2bf WD |
43 | /* |
44 | * don't ask. its stupid, but more than one soul has had to live with this mistake | |
45 | * "swaptab[i]" is the value of "i" with the bits reversed. | |
46 | */ | |
47 | ||
48 | #define MUSENKI_BROKEN_FLASH 1 | |
49 | ||
50 | #ifdef MUSENKI_BROKEN_FLASH | |
51 | unsigned char swaptab[256] = { | |
52 | 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, | |
53 | 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, | |
54 | 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, | |
55 | 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, | |
56 | 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, | |
57 | 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, | |
58 | 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, | |
59 | 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, | |
60 | 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, | |
61 | 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, | |
62 | 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, | |
63 | 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, | |
64 | 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, | |
65 | 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, | |
66 | 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, | |
67 | 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, | |
68 | 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, | |
69 | 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, | |
70 | 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, | |
71 | 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, | |
72 | 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, | |
73 | 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, | |
74 | 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, | |
75 | 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, | |
76 | 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, | |
77 | 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, | |
78 | 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, | |
79 | 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, | |
80 | 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, | |
81 | 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, | |
82 | 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, | |
83 | 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, | |
84 | }; | |
85 | ||
86 | #define BS(b) (swaptab[b]) | |
87 | ||
88 | #else | |
89 | ||
90 | #define BS(b) (b) | |
91 | ||
92 | #endif | |
93 | ||
94 | #define BYTEME(x) ((x) & 0xFF) | |
95 | ||
96 | /*----------------------------------------------------------------------- | |
97 | */ | |
98 | ||
99 | unsigned long flash_init (void) | |
100 | { | |
101 | unsigned long size_b0, size_b1; | |
102 | int i; | |
103 | ||
104 | /* Init: no FLASHes known */ | |
6d0f6bcf | 105 | for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
affae2bf WD |
106 | flash_info[i].flash_id = FLASH_UNKNOWN; |
107 | } | |
108 | ||
109 | /* Static FLASH Bank configuration here - FIXME XXX */ | |
110 | ||
6d0f6bcf | 111 | DEBUGF("\n## Get flash bank 1 size @ 0x%08x\n",CONFIG_SYS_FLASH_BASE0_PRELIM); |
affae2bf | 112 | |
6d0f6bcf | 113 | size_b0 = flash_get_size((vu_char *)CONFIG_SYS_FLASH_BASE0_PRELIM, &flash_info[0]); |
affae2bf WD |
114 | |
115 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { | |
116 | printf ("## Unknown FLASH on Bank 0: " | |
117 | "ID 0x%lx, Size = 0x%08lx = %ld MB\n", | |
118 | flash_info[0].flash_id, | |
119 | size_b0, size_b0<<20); | |
120 | } | |
121 | ||
6d0f6bcf JCPV |
122 | DEBUGF("## Get flash bank 2 size @ 0x%08x\n",CONFIG_SYS_FLASH_BASE1_PRELIM); |
123 | size_b1 = flash_get_size((vu_char *)CONFIG_SYS_FLASH_BASE1_PRELIM, &flash_info[1]); | |
affae2bf WD |
124 | |
125 | DEBUGF("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1); | |
126 | ||
6d0f6bcf | 127 | flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]); |
affae2bf WD |
128 | |
129 | flash_info[0].size = size_b0; | |
130 | ||
6d0f6bcf JCPV |
131 | #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE |
132 | DEBUGF("protect monitor %x @ %x\n", CONFIG_SYS_MONITOR_BASE, monitor_flash_len); | |
affae2bf WD |
133 | /* monitor protection ON by default */ |
134 | flash_protect(FLAG_PROTECT_SET, | |
6d0f6bcf JCPV |
135 | CONFIG_SYS_MONITOR_BASE, |
136 | CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, | |
affae2bf WD |
137 | &flash_info[0]); |
138 | #endif | |
139 | ||
5a1aceb0 | 140 | #ifdef CONFIG_ENV_IS_IN_FLASH |
affae2bf | 141 | /* ENV protection ON by default */ |
0e8d1586 | 142 | DEBUGF("protect environtment %x @ %x\n", CONFIG_ENV_ADDR, CONFIG_ENV_SECT_SIZE); |
affae2bf | 143 | flash_protect(FLAG_PROTECT_SET, |
0e8d1586 JCPV |
144 | CONFIG_ENV_ADDR, |
145 | CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, | |
affae2bf WD |
146 | &flash_info[0]); |
147 | #endif | |
148 | ||
149 | if (size_b1) { | |
150 | flash_info[1].size = size_b1; | |
6d0f6bcf | 151 | flash_get_offsets (CONFIG_SYS_FLASH_BASE + size_b0, &flash_info[1]); |
affae2bf | 152 | |
6d0f6bcf | 153 | #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE |
affae2bf WD |
154 | /* monitor protection ON by default */ |
155 | flash_protect(FLAG_PROTECT_SET, | |
6d0f6bcf JCPV |
156 | CONFIG_SYS_MONITOR_BASE, |
157 | CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, | |
affae2bf WD |
158 | &flash_info[1]); |
159 | #endif | |
160 | ||
5a1aceb0 | 161 | #ifdef CONFIG_ENV_IS_IN_FLASH |
affae2bf WD |
162 | /* ENV protection ON by default */ |
163 | flash_protect(FLAG_PROTECT_SET, | |
0e8d1586 JCPV |
164 | CONFIG_ENV_ADDR, |
165 | CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, | |
affae2bf WD |
166 | &flash_info[1]); |
167 | #endif | |
168 | } else { | |
169 | flash_info[1].flash_id = FLASH_UNKNOWN; | |
170 | flash_info[1].sector_count = -1; | |
171 | flash_info[1].size = 0; | |
172 | } | |
173 | ||
174 | DEBUGF("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1); | |
175 | ||
176 | return (size_b0 + size_b1); | |
177 | } | |
178 | ||
179 | /*----------------------------------------------------------------------- | |
180 | */ | |
181 | static void flash_get_offsets (ulong base, flash_info_t *info) | |
182 | { | |
183 | int i; | |
184 | ||
185 | if (info->flash_id == FLASH_UNKNOWN) { | |
186 | return; | |
187 | } | |
188 | ||
189 | switch (info->flash_id & FLASH_VENDMASK) { | |
190 | case FLASH_MAN_INTEL: | |
191 | for (i = 0; i < info->sector_count; i++) { | |
192 | info->start[i] = base; | |
193 | base += 0x00020000; /* 128k per bank */ | |
194 | } | |
195 | return; | |
196 | ||
197 | default: | |
198 | printf ("Don't know sector ofsets for flash type 0x%lx\n", info->flash_id); | |
199 | return; | |
200 | } | |
201 | } | |
202 | ||
203 | /*----------------------------------------------------------------------- | |
204 | */ | |
205 | void flash_print_info (flash_info_t *info) | |
206 | { | |
207 | int i; | |
208 | ||
209 | if (info->flash_id == FLASH_UNKNOWN) { | |
210 | printf ("missing or unknown FLASH type\n"); | |
211 | return; | |
212 | } | |
213 | ||
214 | switch (info->flash_id & FLASH_VENDMASK) { | |
215 | case FLASH_MAN_AMD: printf ("AMD "); break; | |
216 | case FLASH_MAN_FUJ: printf ("Fujitsu "); break; | |
217 | case FLASH_MAN_SST: printf ("SST "); break; | |
218 | case FLASH_MAN_STM: printf ("STM "); break; | |
219 | case FLASH_MAN_INTEL: printf ("Intel "); break; | |
220 | case FLASH_MAN_MT: printf ("MT "); break; | |
221 | default: printf ("Unknown Vendor "); break; | |
222 | } | |
223 | ||
224 | switch (info->flash_id & FLASH_TYPEMASK) { | |
225 | case FLASH_28F320J3A: printf ("28F320J3A (32Mbit = 128K x 32)\n"); | |
226 | break; | |
227 | case FLASH_28F640J3A: printf ("28F640J3A (64Mbit = 128K x 64)\n"); | |
228 | break; | |
229 | case FLASH_28F128J3A: printf ("28F128J3A (128Mbit = 128K x 128)\n"); | |
230 | break; | |
231 | default: printf ("Unknown Chip Type\n"); | |
232 | break; | |
233 | } | |
234 | ||
235 | if (info->size >= (1 << 20)) { | |
236 | i = 20; | |
237 | } else { | |
238 | i = 10; | |
239 | } | |
240 | printf (" Size: %ld %cB in %d Sectors\n", | |
241 | info->size >> i, | |
242 | (i == 20) ? 'M' : 'k', | |
243 | info->sector_count); | |
244 | ||
245 | printf (" Sector Start Addresses:"); | |
246 | for (i=0; i<info->sector_count; ++i) { | |
247 | if ((i % 5) == 0) | |
248 | printf ("\n "); | |
249 | printf (" %08lX%s", | |
250 | info->start[i], | |
251 | info->protect[i] ? " (RO)" : " " | |
252 | ); | |
253 | } | |
254 | printf ("\n"); | |
255 | return; | |
256 | } | |
257 | ||
258 | /*----------------------------------------------------------------------- | |
259 | */ | |
260 | ||
261 | ||
262 | /*----------------------------------------------------------------------- | |
263 | */ | |
264 | ||
265 | /* | |
266 | * The following code cannot be run from FLASH! | |
267 | */ | |
268 | static ulong flash_get_size (vu_char *addr, flash_info_t *info) | |
269 | { | |
270 | vu_char manuf, device; | |
271 | ||
272 | addr[0] = BS(0x90); | |
273 | manuf = BS(addr[0]); | |
274 | DEBUGF("Manuf. ID @ 0x%08lx: 0x%08x\n", (vu_char *)addr, manuf); | |
275 | ||
276 | switch (manuf) { | |
277 | case BYTEME(AMD_MANUFACT): | |
278 | info->flash_id = FLASH_MAN_AMD; | |
279 | break; | |
280 | case BYTEME(FUJ_MANUFACT): | |
281 | info->flash_id = FLASH_MAN_FUJ; | |
282 | break; | |
283 | case BYTEME(SST_MANUFACT): | |
284 | info->flash_id = FLASH_MAN_SST; | |
285 | break; | |
286 | case BYTEME(STM_MANUFACT): | |
287 | info->flash_id = FLASH_MAN_STM; | |
288 | break; | |
289 | case BYTEME(INTEL_MANUFACT): | |
290 | info->flash_id = FLASH_MAN_INTEL; | |
291 | break; | |
292 | default: | |
293 | info->flash_id = FLASH_UNKNOWN; | |
294 | info->sector_count = 0; | |
295 | info->size = 0; | |
296 | addr[0] = BS(0xFF); /* restore read mode, (yes, BS is a NOP) */ | |
297 | return 0; /* no or unknown flash */ | |
298 | } | |
299 | ||
300 | device = BS(addr[2]); /* device ID */ | |
301 | ||
302 | DEBUGF("Device ID @ 0x%08x: 0x%08x\n", (&addr[1]), device); | |
303 | ||
304 | switch (device) { | |
305 | case BYTEME(INTEL_ID_28F320J3A): | |
306 | info->flash_id += FLASH_28F320J3A; | |
307 | info->sector_count = 32; | |
308 | info->size = 0x00400000; | |
309 | break; /* => 4 MB */ | |
310 | ||
311 | case BYTEME(INTEL_ID_28F640J3A): | |
312 | info->flash_id += FLASH_28F640J3A; | |
313 | info->sector_count = 64; | |
314 | info->size = 0x00800000; | |
315 | break; /* => 8 MB */ | |
316 | ||
317 | case BYTEME(INTEL_ID_28F128J3A): | |
318 | info->flash_id += FLASH_28F128J3A; | |
319 | info->sector_count = 128; | |
320 | info->size = 0x01000000; | |
321 | break; /* => 16 MB */ | |
322 | ||
323 | default: | |
324 | info->flash_id = FLASH_UNKNOWN; | |
325 | addr[0] = BS(0xFF); /* restore read mode (yes, a NOP) */ | |
326 | return 0; /* => no or unknown flash */ | |
327 | ||
328 | } | |
329 | ||
6d0f6bcf | 330 | if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) { |
affae2bf | 331 | printf ("** ERROR: sector count %d > max (%d) **\n", |
6d0f6bcf JCPV |
332 | info->sector_count, CONFIG_SYS_MAX_FLASH_SECT); |
333 | info->sector_count = CONFIG_SYS_MAX_FLASH_SECT; | |
affae2bf WD |
334 | } |
335 | ||
336 | addr[0] = BS(0xFF); /* restore read mode */ | |
337 | ||
338 | return (info->size); | |
339 | } | |
340 | ||
341 | ||
342 | /*----------------------------------------------------------------------- | |
343 | */ | |
344 | ||
345 | int flash_erase (flash_info_t *info, int s_first, int s_last) | |
346 | { | |
347 | int flag, prot, sect; | |
348 | ulong start, now, last; | |
349 | ||
350 | if ((s_first < 0) || (s_first > s_last)) { | |
351 | if (info->flash_id == FLASH_UNKNOWN) { | |
352 | printf ("- missing\n"); | |
353 | } else { | |
354 | printf ("- no sectors to erase\n"); | |
355 | } | |
356 | return 1; | |
357 | } | |
358 | ||
359 | if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) { | |
360 | printf ("Can erase only Intel flash types - aborted\n"); | |
361 | return 1; | |
362 | } | |
363 | ||
364 | prot = 0; | |
365 | for (sect=s_first; sect<=s_last; ++sect) { | |
366 | if (info->protect[sect]) { | |
367 | prot++; | |
368 | } | |
369 | } | |
370 | ||
371 | if (prot) { | |
372 | printf ("- Warning: %d protected sectors will not be erased!\n", prot); | |
373 | } else { | |
374 | printf ("\n"); | |
375 | } | |
376 | ||
377 | start = get_timer (0); | |
378 | last = start; | |
379 | /* Start erase on unprotected sectors */ | |
380 | for (sect = s_first; sect<=s_last; sect++) { | |
381 | if (info->protect[sect] == 0) { /* not protected */ | |
382 | vu_char *addr = (vu_char *)(info->start[sect]); | |
383 | unsigned long status; | |
384 | ||
385 | /* Disable interrupts which might cause a timeout here */ | |
386 | flag = disable_interrupts(); | |
387 | ||
388 | *addr = BS(0x50); /* clear status register */ | |
389 | *addr = BS(0x20); /* erase setup */ | |
390 | *addr = BS(0xD0); /* erase confirm */ | |
391 | ||
392 | /* re-enable interrupts if necessary */ | |
393 | if (flag) { | |
394 | enable_interrupts(); | |
395 | } | |
396 | ||
397 | /* wait at least 80us - let's wait 1 ms */ | |
398 | udelay (1000); | |
399 | ||
400 | while (((status = BS(*addr)) & BYTEME(0x00800080)) != BYTEME(0x00800080)) { | |
6d0f6bcf | 401 | if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { |
affae2bf WD |
402 | printf ("Timeout\n"); |
403 | *addr = BS(0xB0); /* suspend erase */ | |
404 | *addr = BS(0xFF); /* reset to read mode */ | |
405 | return 1; | |
406 | } | |
407 | ||
408 | /* show that we're waiting */ | |
409 | if ((now - last) > 1000) { /* every second */ | |
410 | putc ('.'); | |
411 | last = now; | |
412 | } | |
413 | } | |
414 | ||
415 | *addr = BS(0xFF); /* reset to read mode */ | |
416 | } | |
417 | } | |
418 | printf (" done\n"); | |
419 | return 0; | |
420 | } | |
421 | ||
422 | /*----------------------------------------------------------------------- | |
423 | * Copy memory to flash, returns: | |
424 | * 0 - OK | |
425 | * 1 - write timeout | |
426 | * 2 - Flash not erased | |
427 | * 4 - Flash not identified | |
428 | */ | |
429 | ||
430 | #define FLASH_WIDTH 1 /* flash bus width in bytes */ | |
431 | ||
432 | int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) | |
433 | { | |
434 | uchar *wp = (uchar *)addr; | |
435 | int rc; | |
436 | ||
437 | if (info->flash_id == FLASH_UNKNOWN) { | |
438 | return 4; | |
439 | } | |
440 | ||
441 | while (cnt > 0) { | |
442 | if ((rc = write_data(info, wp, *src)) != 0) { | |
443 | return rc; | |
444 | } | |
445 | wp++; | |
446 | src++; | |
447 | cnt--; | |
448 | } | |
449 | ||
450 | return cnt; | |
451 | } | |
452 | ||
453 | /*----------------------------------------------------------------------- | |
454 | * Write a word to Flash, returns: | |
455 | * 0 - OK | |
456 | * 1 - write timeout | |
457 | * 2 - Flash not erased | |
458 | */ | |
459 | static int write_data (flash_info_t *info, uchar *dest, uchar data) | |
460 | { | |
461 | vu_char *addr = (vu_char *)dest; | |
462 | ulong status; | |
463 | ulong start; | |
464 | int flag; | |
465 | ||
466 | /* Check if Flash is (sufficiently) erased */ | |
467 | if ((BS(*addr) & data) != data) { | |
468 | return 2; | |
469 | } | |
470 | /* Disable interrupts which might cause a timeout here */ | |
471 | flag = disable_interrupts(); | |
472 | ||
473 | *addr = BS(0x40); /* write setup */ | |
474 | *addr = data; | |
475 | ||
476 | /* re-enable interrupts if necessary */ | |
477 | if (flag) { | |
478 | enable_interrupts(); | |
479 | } | |
480 | ||
481 | start = get_timer (0); | |
482 | ||
483 | while (((status = BS(*addr)) & BYTEME(0x00800080)) != BYTEME(0x00800080)) { | |
6d0f6bcf | 484 | if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { |
affae2bf WD |
485 | *addr = BS(0xFF); /* restore read mode */ |
486 | return 1; | |
487 | } | |
488 | } | |
489 | ||
490 | *addr = BS(0xFF); /* restore read mode */ | |
491 | ||
492 | return 0; | |
493 | } | |
494 | ||
495 | /*----------------------------------------------------------------------- | |
496 | */ |