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a4c8d138 SR |
1 | /* |
2 | * (C) Copyright 2006 | |
3 | * Stefan Roese, DENX Software Engineering, sr@denx.de. | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <common.h> | |
25 | #include <asm/processor.h> | |
26 | ||
6d0f6bcf JCPV |
27 | #ifndef CONFIG_SYS_FLASH_READ0 |
28 | #define CONFIG_SYS_FLASH_READ0 0x0000 /* 0 is standard */ | |
29 | #define CONFIG_SYS_FLASH_READ1 0x0001 /* 1 is standard */ | |
30 | #define CONFIG_SYS_FLASH_READ2 0x0002 /* 2 is standard */ | |
a4c8d138 SR |
31 | #endif |
32 | ||
6d0f6bcf | 33 | flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
a4c8d138 SR |
34 | |
35 | /* | |
36 | * Functions | |
37 | */ | |
38 | static int write_word(flash_info_t *info, ulong dest, ulong data); | |
39 | static ulong flash_get_size(vu_long *addr, flash_info_t *info); | |
40 | ||
41 | unsigned long flash_init(void) | |
42 | { | |
43 | unsigned long size_b0, size_b1; | |
44 | int i; | |
45 | unsigned long base_b0, base_b1; | |
46 | ||
47 | /* Init: no FLASHes known */ | |
6d0f6bcf | 48 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
a4c8d138 SR |
49 | flash_info[i].flash_id = FLASH_UNKNOWN; |
50 | } | |
51 | ||
52 | /* Static FLASH Bank configuration here - FIXME XXX */ | |
53 | ||
54 | base_b0 = FLASH_BASE0_PRELIM; | |
55 | size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); | |
56 | ||
57 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { | |
58 | printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", | |
59 | size_b0, size_b0 << 20); | |
60 | } | |
61 | ||
62 | base_b1 = FLASH_BASE1_PRELIM; | |
63 | size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); | |
64 | ||
65 | return (size_b0 + size_b1); | |
66 | } | |
67 | ||
68 | void flash_print_info(flash_info_t *info) | |
69 | { | |
70 | int i; | |
71 | int k; | |
72 | int size; | |
73 | int erased; | |
74 | volatile unsigned long *flash; | |
75 | ||
76 | if (info->flash_id == FLASH_UNKNOWN) { | |
77 | printf ("missing or unknown FLASH type\n"); | |
78 | return; | |
79 | } | |
80 | ||
81 | switch (info->flash_id & FLASH_VENDMASK) { | |
82 | case FLASH_MAN_AMD: printf ("AMD "); break; | |
83 | case FLASH_MAN_FUJ: printf ("FUJITSU "); break; | |
84 | case FLASH_MAN_SST: printf ("SST "); break; | |
96e1d75b | 85 | case FLASH_MAN_STM: printf ("ST Micro"); break; |
a4c8d138 | 86 | case FLASH_MAN_EXCEL: printf ("Excel Semiconductor "); break; |
566a494f | 87 | case FLASH_MAN_MX: printf ("MXIC "); break; |
a4c8d138 SR |
88 | default: printf ("Unknown Vendor "); break; |
89 | } | |
90 | ||
91 | switch (info->flash_id & FLASH_TYPEMASK) { | |
92 | case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); | |
93 | break; | |
94 | case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n"); | |
95 | break; | |
96 | case FLASH_AM040: printf ("AM29LV040B (4 Mbit, uniform sector size)\n"); | |
97 | break; | |
98 | case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n"); | |
99 | break; | |
100 | case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n"); | |
101 | break; | |
102 | case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); | |
103 | break; | |
104 | case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n"); | |
105 | break; | |
106 | case FLASH_AM320T: printf ("AM29LV320T (32 M, top sector)\n"); | |
107 | break; | |
108 | case FLASH_AM320B: printf ("AM29LV320B (32 M, bottom sector)\n"); | |
109 | break; | |
110 | case FLASH_AMDL322T: printf ("AM29DL322T (32 M, top sector)\n"); | |
111 | break; | |
112 | case FLASH_AMDL322B: printf ("AM29DL322B (32 M, bottom sector)\n"); | |
113 | break; | |
114 | case FLASH_AMDL323T: printf ("AM29DL323T (32 M, top sector)\n"); | |
115 | break; | |
116 | case FLASH_AMDL323B: printf ("AM29DL323B (32 M, bottom sector)\n"); | |
117 | break; | |
118 | case FLASH_SST020: printf ("SST39LF/VF020 (2 Mbit, uniform sector size)\n"); | |
119 | break; | |
120 | case FLASH_SST040: printf ("SST39LF/VF040 (4 Mbit, uniform sector size)\n"); | |
121 | break; | |
96e1d75b HS |
122 | case STM_ID_M29W040B: printf ("ST Micro M29W040B (4 Mbit, uniform sector size)\n"); |
123 | break; | |
a4c8d138 SR |
124 | default: printf ("Unknown Chip Type\n"); |
125 | break; | |
126 | } | |
127 | ||
128 | printf (" Size: %ld MB in %d Sectors\n", | |
129 | info->size >> 20, info->sector_count); | |
130 | ||
131 | printf (" Sector Start Addresses:"); | |
132 | for (i=0; i<info->sector_count; ++i) { | |
6d0f6bcf | 133 | #ifdef CONFIG_SYS_FLASH_EMPTY_INFO |
a4c8d138 SR |
134 | /* |
135 | * Check if whole sector is erased | |
136 | */ | |
137 | if (i != (info->sector_count-1)) | |
138 | size = info->start[i+1] - info->start[i]; | |
139 | else | |
140 | size = info->start[0] + info->size - info->start[i]; | |
141 | erased = 1; | |
142 | flash = (volatile unsigned long *)info->start[i]; | |
2fd9eb50 | 143 | size = size >> 2; /* divide by 4 for longword access */ |
a4c8d138 SR |
144 | for (k=0; k<size; k++) { |
145 | if (*flash++ != 0xffffffff) { | |
146 | erased = 0; | |
147 | break; | |
148 | } | |
149 | } | |
150 | ||
151 | if ((i % 5) == 0) | |
152 | printf ("\n "); | |
153 | /* print empty and read-only info */ | |
154 | printf (" %08lX%s%s", | |
155 | info->start[i], | |
156 | erased ? " E" : " ", | |
157 | info->protect[i] ? "RO " : " "); | |
158 | #else | |
159 | if ((i % 5) == 0) | |
160 | printf ("\n "); | |
161 | printf (" %08lX%s", | |
162 | info->start[i], | |
163 | info->protect[i] ? " (RO)" : " "); | |
164 | #endif | |
165 | ||
166 | } | |
167 | printf ("\n"); | |
168 | return; | |
169 | } | |
170 | ||
171 | /* | |
172 | * The following code cannot be run from FLASH! | |
173 | */ | |
174 | static ulong flash_get_size(vu_long *addr, flash_info_t *info) | |
175 | { | |
176 | short i; | |
177 | short n; | |
6d0f6bcf | 178 | volatile CONFIG_SYS_FLASH_WORD_SIZE value; |
a4c8d138 | 179 | ulong base = (ulong)addr; |
6d0f6bcf | 180 | volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)addr; |
a4c8d138 SR |
181 | |
182 | /* Write auto select command: read Manufacturer ID */ | |
6d0f6bcf JCPV |
183 | addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; |
184 | addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; | |
185 | addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00900090; | |
a4c8d138 | 186 | |
6d0f6bcf | 187 | value = addr2[CONFIG_SYS_FLASH_READ0]; |
a4c8d138 SR |
188 | |
189 | switch (value) { | |
6d0f6bcf | 190 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_MANUFACT: |
a4c8d138 SR |
191 | info->flash_id = FLASH_MAN_AMD; |
192 | break; | |
6d0f6bcf | 193 | case (CONFIG_SYS_FLASH_WORD_SIZE)FUJ_MANUFACT: |
a4c8d138 SR |
194 | info->flash_id = FLASH_MAN_FUJ; |
195 | break; | |
6d0f6bcf | 196 | case (CONFIG_SYS_FLASH_WORD_SIZE)SST_MANUFACT: |
a4c8d138 SR |
197 | info->flash_id = FLASH_MAN_SST; |
198 | break; | |
6d0f6bcf | 199 | case (CONFIG_SYS_FLASH_WORD_SIZE)STM_MANUFACT: |
96e1d75b HS |
200 | info->flash_id = FLASH_MAN_STM; |
201 | break; | |
6d0f6bcf | 202 | case (CONFIG_SYS_FLASH_WORD_SIZE)EXCEL_MANUFACT: |
a4c8d138 SR |
203 | info->flash_id = FLASH_MAN_EXCEL; |
204 | break; | |
6d0f6bcf | 205 | case (CONFIG_SYS_FLASH_WORD_SIZE)MX_MANUFACT: |
566a494f HS |
206 | info->flash_id = FLASH_MAN_MX; |
207 | break; | |
a4c8d138 SR |
208 | default: |
209 | info->flash_id = FLASH_UNKNOWN; | |
210 | info->sector_count = 0; | |
211 | info->size = 0; | |
212 | return (0); /* no or unknown flash */ | |
213 | } | |
214 | ||
6d0f6bcf | 215 | value = addr2[CONFIG_SYS_FLASH_READ1]; /* device ID */ |
a4c8d138 SR |
216 | |
217 | switch (value) { | |
6d0f6bcf | 218 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV400T: |
a4c8d138 SR |
219 | info->flash_id += FLASH_AM400T; |
220 | info->sector_count = 11; | |
221 | info->size = 0x00080000; | |
2fd9eb50 | 222 | break; /* => 0.5 MB */ |
a4c8d138 | 223 | |
6d0f6bcf | 224 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV400B: |
a4c8d138 SR |
225 | info->flash_id += FLASH_AM400B; |
226 | info->sector_count = 11; | |
227 | info->size = 0x00080000; | |
2fd9eb50 | 228 | break; /* => 0.5 MB */ |
a4c8d138 | 229 | |
6d0f6bcf | 230 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV040B: |
2fd9eb50 WD |
231 | info->flash_id += FLASH_AM040; |
232 | info->sector_count = 8; | |
233 | info->size = 0x0080000; /* => 0.5 MB */ | |
234 | break; | |
6d0f6bcf | 235 | case (CONFIG_SYS_FLASH_WORD_SIZE)STM_ID_M29W040B: |
96e1d75b HS |
236 | info->flash_id += FLASH_AM040; |
237 | info->sector_count = 8; | |
238 | info->size = 0x0080000; /* => 0,5 MB */ | |
239 | break; | |
a4c8d138 | 240 | |
6d0f6bcf | 241 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV800T: |
a4c8d138 SR |
242 | info->flash_id += FLASH_AM800T; |
243 | info->sector_count = 19; | |
244 | info->size = 0x00100000; | |
2fd9eb50 | 245 | break; /* => 1 MB */ |
a4c8d138 | 246 | |
6d0f6bcf | 247 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV800B: |
a4c8d138 SR |
248 | info->flash_id += FLASH_AM800B; |
249 | info->sector_count = 19; | |
250 | info->size = 0x00100000; | |
2fd9eb50 | 251 | break; /* => 1 MB */ |
a4c8d138 | 252 | |
6d0f6bcf | 253 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV160T: |
a4c8d138 SR |
254 | info->flash_id += FLASH_AM160T; |
255 | info->sector_count = 35; | |
256 | info->size = 0x00200000; | |
2fd9eb50 | 257 | break; /* => 2 MB */ |
a4c8d138 | 258 | |
6d0f6bcf | 259 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV160B: |
a4c8d138 SR |
260 | info->flash_id += FLASH_AM160B; |
261 | info->sector_count = 35; | |
262 | info->size = 0x00200000; | |
2fd9eb50 | 263 | break; /* => 2 MB */ |
a4c8d138 | 264 | |
6d0f6bcf | 265 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320T: |
a4c8d138 SR |
266 | info->flash_id += FLASH_AM320T; |
267 | info->sector_count = 71; | |
2fd9eb50 WD |
268 | info->size = 0x00400000; |
269 | break; /* => 4 MB */ | |
a4c8d138 | 270 | |
6d0f6bcf | 271 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320B: |
a4c8d138 SR |
272 | info->flash_id += FLASH_AM320B; |
273 | info->sector_count = 71; | |
2fd9eb50 WD |
274 | info->size = 0x00400000; |
275 | break; /* => 4 MB */ | |
a4c8d138 | 276 | |
6d0f6bcf | 277 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL322T: |
a4c8d138 SR |
278 | info->flash_id += FLASH_AMDL322T; |
279 | info->sector_count = 71; | |
2fd9eb50 WD |
280 | info->size = 0x00400000; |
281 | break; /* => 4 MB */ | |
a4c8d138 | 282 | |
6d0f6bcf | 283 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL322B: |
a4c8d138 SR |
284 | info->flash_id += FLASH_AMDL322B; |
285 | info->sector_count = 71; | |
2fd9eb50 WD |
286 | info->size = 0x00400000; |
287 | break; /* => 4 MB */ | |
a4c8d138 | 288 | |
6d0f6bcf | 289 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL323T: |
a4c8d138 SR |
290 | info->flash_id += FLASH_AMDL323T; |
291 | info->sector_count = 71; | |
2fd9eb50 WD |
292 | info->size = 0x00400000; |
293 | break; /* => 4 MB */ | |
a4c8d138 | 294 | |
6d0f6bcf | 295 | case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_DL323B: |
a4c8d138 SR |
296 | info->flash_id += FLASH_AMDL323B; |
297 | info->sector_count = 71; | |
2fd9eb50 WD |
298 | info->size = 0x00400000; |
299 | break; /* => 4 MB */ | |
a4c8d138 | 300 | |
6d0f6bcf | 301 | case (CONFIG_SYS_FLASH_WORD_SIZE)SST_ID_xF020: |
a4c8d138 SR |
302 | info->flash_id += FLASH_SST020; |
303 | info->sector_count = 64; | |
304 | info->size = 0x00040000; | |
2fd9eb50 | 305 | break; /* => 256 kB */ |
a4c8d138 | 306 | |
6d0f6bcf | 307 | case (CONFIG_SYS_FLASH_WORD_SIZE)SST_ID_xF040: |
a4c8d138 SR |
308 | info->flash_id += FLASH_SST040; |
309 | info->sector_count = 128; | |
310 | info->size = 0x00080000; | |
2fd9eb50 | 311 | break; /* => 512 kB */ |
a4c8d138 SR |
312 | |
313 | default: | |
314 | info->flash_id = FLASH_UNKNOWN; | |
315 | return (0); /* => no or unknown flash */ | |
316 | ||
317 | } | |
318 | ||
319 | /* set up sector start address table */ | |
320 | if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || | |
321 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U)) { | |
322 | for (i = 0; i < info->sector_count; i++) | |
323 | info->start[i] = base + (i * 0x00001000); | |
324 | } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { | |
325 | for (i = 0; i < info->sector_count; i++) | |
326 | info->start[i] = base + (i * 0x00010000); | |
327 | } else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322B) || | |
328 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323B) || | |
329 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) || | |
330 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324B)) { | |
331 | /* set sector offsets for bottom boot block type */ | |
332 | for (i=0; i<8; ++i) { /* 8 x 8k boot sectors */ | |
333 | info->start[i] = base; | |
334 | base += 8 << 10; | |
335 | } | |
336 | while (i < info->sector_count) { /* 64k regular sectors */ | |
337 | info->start[i] = base; | |
338 | base += 64 << 10; | |
339 | ++i; | |
340 | } | |
341 | } else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322T) || | |
342 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323T) || | |
343 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) || | |
344 | ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324T)) { | |
345 | /* set sector offsets for top boot block type */ | |
346 | base += info->size; | |
347 | i = info->sector_count; | |
348 | for (n=0; n<8; ++n) { /* 8 x 8k boot sectors */ | |
349 | base -= 8 << 10; | |
350 | --i; | |
351 | info->start[i] = base; | |
352 | } | |
353 | while (i > 0) { /* 64k regular sectors */ | |
354 | base -= 64 << 10; | |
355 | --i; | |
356 | info->start[i] = base; | |
357 | } | |
358 | } else { | |
359 | if (info->flash_id & FLASH_BTYPE) { | |
360 | /* set sector offsets for bottom boot block type */ | |
361 | info->start[0] = base + 0x00000000; | |
362 | info->start[1] = base + 0x00004000; | |
363 | info->start[2] = base + 0x00006000; | |
364 | info->start[3] = base + 0x00008000; | |
365 | for (i = 4; i < info->sector_count; i++) { | |
366 | info->start[i] = base + (i * 0x00010000) - 0x00030000; | |
367 | } | |
368 | } else { | |
369 | /* set sector offsets for top boot block type */ | |
370 | i = info->sector_count - 1; | |
371 | info->start[i--] = base + info->size - 0x00004000; | |
372 | info->start[i--] = base + info->size - 0x00006000; | |
373 | info->start[i--] = base + info->size - 0x00008000; | |
374 | for (; i >= 0; i--) { | |
375 | info->start[i] = base + i * 0x00010000; | |
376 | } | |
377 | } | |
378 | } | |
379 | ||
380 | /* check for protected sectors */ | |
381 | for (i = 0; i < info->sector_count; i++) { | |
382 | /* read sector protection at sector address, (A7 .. A0) = 0x02 */ | |
383 | /* D0 = 1 if protected */ | |
6d0f6bcf | 384 | addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]); |
a4c8d138 SR |
385 | if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_AMD) |
386 | info->protect[i] = 0; | |
387 | else | |
6d0f6bcf | 388 | info->protect[i] = addr2[CONFIG_SYS_FLASH_READ2] & 1; |
a4c8d138 SR |
389 | } |
390 | ||
391 | /* | |
392 | * Prevent writes to uninitialized FLASH. | |
393 | */ | |
394 | if (info->flash_id != FLASH_UNKNOWN) { | |
6d0f6bcf JCPV |
395 | addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)info->start[0]; |
396 | *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ | |
a4c8d138 SR |
397 | } |
398 | ||
399 | return (info->size); | |
400 | } | |
401 | ||
402 | ||
403 | int flash_erase(flash_info_t *info, int s_first, int s_last) | |
404 | { | |
6d0f6bcf JCPV |
405 | volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]); |
406 | volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2; | |
a4c8d138 SR |
407 | int flag, prot, sect, l_sect; |
408 | ulong start, now, last; | |
409 | ||
410 | if ((s_first < 0) || (s_first > s_last)) { | |
411 | if (info->flash_id == FLASH_UNKNOWN) | |
412 | printf ("- missing\n"); | |
413 | else | |
414 | printf ("- no sectors to erase\n"); | |
415 | return 1; | |
416 | } | |
417 | ||
418 | if (info->flash_id == FLASH_UNKNOWN) { | |
419 | printf ("Can't erase unknown flash type - aborted\n"); | |
420 | return 1; | |
421 | } | |
422 | ||
423 | prot = 0; | |
424 | for (sect=s_first; sect<=s_last; ++sect) | |
425 | if (info->protect[sect]) | |
426 | prot++; | |
427 | ||
428 | if (prot) | |
429 | printf ("- Warning: %d protected sectors will not be erased!\n", prot); | |
430 | else | |
431 | printf ("\n"); | |
432 | ||
433 | l_sect = -1; | |
434 | ||
435 | /* Disable interrupts which might cause a timeout here */ | |
436 | flag = disable_interrupts(); | |
437 | ||
438 | /* Start erase on unprotected sectors */ | |
439 | for (sect = s_first; sect<=s_last; sect++) { | |
440 | if (info->protect[sect] == 0) { /* not protected */ | |
6d0f6bcf | 441 | addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[sect]); |
a4c8d138 | 442 | if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { |
6d0f6bcf JCPV |
443 | addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; |
444 | addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; | |
445 | addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080; | |
446 | addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; | |
447 | addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; | |
448 | addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00300030; /* sector erase */ | |
a4c8d138 SR |
449 | |
450 | /* re-enable interrupts if necessary */ | |
451 | if (flag) { | |
452 | enable_interrupts(); | |
453 | flag = 0; | |
454 | } | |
455 | ||
456 | /* data polling for D7 */ | |
457 | start = get_timer (0); | |
6d0f6bcf JCPV |
458 | while ((addr2[0] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) != |
459 | (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) { | |
460 | if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) | |
a4c8d138 SR |
461 | return (1); |
462 | } | |
463 | } else { | |
464 | if (sect == s_first) { | |
6d0f6bcf JCPV |
465 | addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; |
466 | addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; | |
467 | addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080; | |
468 | addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; | |
469 | addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; | |
a4c8d138 | 470 | } |
6d0f6bcf | 471 | addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00300030; /* sector erase */ |
a4c8d138 SR |
472 | } |
473 | l_sect = sect; | |
474 | } | |
475 | } | |
476 | ||
477 | /* re-enable interrupts if necessary */ | |
478 | if (flag) | |
479 | enable_interrupts(); | |
480 | ||
481 | /* wait at least 80us - let's wait 1 ms */ | |
482 | udelay (1000); | |
483 | ||
484 | /* | |
485 | * We wait for the last triggered sector | |
486 | */ | |
487 | if (l_sect < 0) | |
488 | goto DONE; | |
489 | ||
490 | start = get_timer (0); | |
491 | last = start; | |
6d0f6bcf JCPV |
492 | addr = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[l_sect]); |
493 | while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) != (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) { | |
494 | if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { | |
a4c8d138 SR |
495 | printf ("Timeout\n"); |
496 | return 1; | |
497 | } | |
498 | /* show that we're waiting */ | |
499 | if ((now - last) > 1000) { /* every second */ | |
500 | putc ('.'); | |
501 | last = now; | |
502 | } | |
503 | } | |
504 | ||
505 | DONE: | |
506 | /* reset to read mode */ | |
6d0f6bcf JCPV |
507 | addr = (CONFIG_SYS_FLASH_WORD_SIZE *)info->start[0]; |
508 | addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ | |
a4c8d138 SR |
509 | |
510 | printf (" done\n"); | |
511 | return 0; | |
512 | } | |
513 | ||
514 | /* | |
515 | * Copy memory to flash, returns: | |
516 | * 0 - OK | |
517 | * 1 - write timeout | |
518 | * 2 - Flash not erased | |
519 | */ | |
520 | int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) | |
521 | { | |
522 | ulong cp, wp, data; | |
523 | int i, l, rc; | |
524 | ||
525 | wp = (addr & ~3); /* get lower word aligned address */ | |
526 | ||
527 | /* | |
528 | * handle unaligned start bytes | |
529 | */ | |
530 | if ((l = addr - wp) != 0) { | |
531 | data = 0; | |
532 | for (i=0, cp=wp; i<l; ++i, ++cp) { | |
533 | data = (data << 8) | (*(uchar *)cp); | |
534 | } | |
535 | for (; i<4 && cnt>0; ++i) { | |
536 | data = (data << 8) | *src++; | |
537 | --cnt; | |
538 | ++cp; | |
539 | } | |
540 | for (; cnt==0 && i<4; ++i, ++cp) { | |
541 | data = (data << 8) | (*(uchar *)cp); | |
542 | } | |
543 | ||
544 | if ((rc = write_word(info, wp, data)) != 0) { | |
545 | return (rc); | |
546 | } | |
547 | wp += 4; | |
548 | } | |
549 | ||
550 | /* | |
551 | * handle word aligned part | |
552 | */ | |
553 | while (cnt >= 4) { | |
554 | data = 0; | |
555 | for (i=0; i<4; ++i) | |
556 | data = (data << 8) | *src++; | |
557 | if ((rc = write_word(info, wp, data)) != 0) | |
558 | return (rc); | |
559 | wp += 4; | |
560 | cnt -= 4; | |
561 | } | |
562 | ||
563 | if (cnt == 0) | |
564 | return (0); | |
565 | ||
566 | /* | |
567 | * handle unaligned tail bytes | |
568 | */ | |
569 | data = 0; | |
570 | for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { | |
571 | data = (data << 8) | *src++; | |
572 | --cnt; | |
573 | } | |
574 | for (; i<4; ++i, ++cp) | |
575 | data = (data << 8) | (*(uchar *)cp); | |
576 | ||
577 | return (write_word(info, wp, data)); | |
578 | } | |
579 | ||
580 | /* | |
581 | * Write a word to Flash, returns: | |
582 | * 0 - OK | |
583 | * 1 - write timeout | |
584 | * 2 - Flash not erased | |
585 | */ | |
586 | static int write_word(flash_info_t *info, ulong dest, ulong data) | |
587 | { | |
6d0f6bcf JCPV |
588 | volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]); |
589 | volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest; | |
590 | volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)&data; | |
a4c8d138 SR |
591 | ulong start; |
592 | int flag; | |
593 | int i; | |
594 | ||
595 | /* Check if Flash is (sufficiently) erased */ | |
596 | if ((*((vu_long *)dest) & data) != data) | |
597 | return (2); | |
598 | ||
599 | /* Disable interrupts which might cause a timeout here */ | |
600 | flag = disable_interrupts(); | |
601 | ||
6d0f6bcf JCPV |
602 | for (i=0; i<4/sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) { |
603 | addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00AA00AA; | |
604 | addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00550055; | |
605 | addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE)0x00A000A0; | |
a4c8d138 SR |
606 | |
607 | dest2[i] = data2[i]; | |
608 | ||
609 | /* re-enable interrupts if necessary */ | |
610 | if (flag) | |
611 | enable_interrupts(); | |
612 | ||
613 | /* data polling for D7 */ | |
614 | start = get_timer (0); | |
6d0f6bcf JCPV |
615 | while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080) != |
616 | (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE)0x00800080)) { | |
617 | if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) | |
a4c8d138 SR |
618 | return (1); |
619 | } | |
620 | } | |
621 | ||
622 | return (0); | |
623 | } |