blob: e9fbbb1029e237a7aa5b59722f73314be8ba25e6 [file] [log] [blame]
John Otkend4024bb2007-07-26 17:49:11 +02001/*
2 * (C) Copyright 2000
3 * Wolfgang Denk, DENX Software Engineering, wd@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/*
25 * Modified 4/5/2001
26 * Wait for completion of each sector erase command issued
27 * 4/5/2001
28 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
29 */
30
31#include <common.h>
Stefan Roeseb36df562010-09-09 19:18:00 +020032#include <asm/ppc4xx.h>
John Otkend4024bb2007-07-26 17:49:11 +020033#include <asm/processor.h>
34
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020035flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
John Otkend4024bb2007-07-26 17:49:11 +020036
37#undef DEBUG
38#ifdef DEBUG
39#define DEBUGF(x...) printf(x)
40#else
41#define DEBUGF(x...)
42#endif /* DEBUG */
43
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020044#define CONFIG_SYS_FLASH_CHAR_SIZE unsigned char
45#define CONFIG_SYS_FLASH_CHAR_ADDR0 (0x0aaa)
46#define CONFIG_SYS_FLASH_CHAR_ADDR1 (0x0555)
John Otkend4024bb2007-07-26 17:49:11 +020047/*-----------------------------------------------------------------------
48 * Functions
49 */
50static ulong flash_get_size(vu_long * addr, flash_info_t * info);
51static void flash_get_offsets(ulong base, flash_info_t * info);
52static int write_word(flash_info_t * info, ulong dest, ulong data);
53#ifdef FLASH_BASE1_PRELIM
54static int write_word_1(flash_info_t * info, ulong dest, ulong data);
55static int write_word_2(flash_info_t * info, ulong dest, ulong data);
56static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
57static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
58static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
59static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
60#endif
61
62unsigned long flash_init(void)
63{
64 unsigned long size_b0, size_b1=0;
65 int i;
66
67 /* Init: no FLASHes known */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020068 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
John Otkend4024bb2007-07-26 17:49:11 +020069 flash_info[i].flash_id = FLASH_UNKNOWN;
70 }
71
72 /* Static FLASH Bank configuration here - FIXME XXX */
73
74 size_b0 =
75 flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]);
76
77 if (flash_info[0].flash_id == FLASH_UNKNOWN) {
78 printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
79 size_b0, size_b0 << 20);
80 }
81
82 if (size_b0) {
83 /* Setup offsets */
84 flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]);
85 /* Monitor protection ON by default */
86 (void)flash_protect(FLAG_PROTECT_SET,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020087 CONFIG_SYS_MONITOR_BASE,
88 CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
John Otkend4024bb2007-07-26 17:49:11 +020089 &flash_info[0]);
Jean-Christophe PLAGNIOL-VILLARD5a1aceb2008-09-10 22:48:04 +020090#ifdef CONFIG_ENV_IS_IN_FLASH
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020091 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
92 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
John Otkend4024bb2007-07-26 17:49:11 +020093 &flash_info[0]);
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020094 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
95 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
John Otkend4024bb2007-07-26 17:49:11 +020096 &flash_info[0]);
97#endif
98 /* Also protect sector containing initial power-up instruction */
99 /* (flash_protect() checks address range - other call ignored) */
100 (void)flash_protect(FLAG_PROTECT_SET,
101 0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]);
102
103 flash_info[0].size = size_b0;
104 }
105#ifdef FLASH_BASE1_PRELIM
106 size_b1 =
107 flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2;
108
109 if (flash_info[1].flash_id == FLASH_UNKNOWN) {
110 printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
111 size_b1, size_b1 << 20);
112 }
113
114 if (size_b1) {
115 /* Setup offsets */
116 flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]);
117 flash_info[1].size = size_b1;
118 }
119#endif
120 return (size_b0 + size_b1);
121}
122
123static void flash_get_offsets(ulong base, flash_info_t * info)
124{
125 int i;
126
127 /* set up sector start address table */
128 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
129 (info->flash_id == FLASH_AM040)) {
130 for (i = 0; i < info->sector_count; i++)
131 info->start[i] = base + (i * 0x00010000);
132 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
133 for (i = 0; i < info->sector_count; i++) {
134 info->start[i] = base + (i * 0x00010000*2);
135 }
136 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
137 for (i = 0; i < info->sector_count; i++) {
138 info->start[i] = base + (i * 0x00020000*2);
139 }
140 } else {
141 if (info->flash_id & FLASH_BTYPE) {
142 /* set sector offsets for bottom boot block type */
143 info->start[0] = base + 0x00000000;
144 info->start[1] = base + 0x00004000;
145 info->start[2] = base + 0x00006000;
146 info->start[3] = base + 0x00008000;
147 for (i = 4; i < info->sector_count; i++) {
148 info->start[i] =
149 base + (i * 0x00010000) - 0x00030000;
150 }
151 } else {
152 /* set sector offsets for top boot block type */
153 i = info->sector_count - 1;
154 info->start[i--] = base + info->size - 0x00004000;
155 info->start[i--] = base + info->size - 0x00006000;
156 info->start[i--] = base + info->size - 0x00008000;
157 for (; i >= 0; i--) {
158 info->start[i] = base + i * 0x00010000;
159 }
160 }
161 }
162}
163
164
165void flash_print_info(flash_info_t * info)
166{
167 int i;
168 int k;
169 int size;
170 int erased;
171 volatile unsigned long *flash;
172
173 if (info->flash_id == FLASH_UNKNOWN) {
174 printf("missing or unknown FLASH type\n");
175 return;
176 }
177
178 switch (info->flash_id & FLASH_VENDMASK) {
179 case FLASH_MAN_AMD:
180 printf("AMD ");
181 break;
182 case FLASH_MAN_STM:
183 printf("STM ");
184 break;
185 case FLASH_MAN_FUJ:
186 printf("FUJITSU ");
187 break;
188 case FLASH_MAN_SST:
189 printf("SST ");
190 break;
191 default:
192 printf("Unknown Vendor ");
193 break;
194 }
195
196 switch (info->flash_id & FLASH_TYPEMASK) {
197 case FLASH_AM040:
198 printf("AM29F040 (512 Kbit, uniform sector size)\n");
199 break;
200 case FLASH_AM400B:
201 printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
202 break;
203 case FLASH_AM400T:
204 printf("AM29LV400T (4 Mbit, top boot sector)\n");
205 break;
206 case FLASH_AM800B:
207 printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
208 break;
209 case FLASH_AM800T:
210 printf("AM29LV800T (8 Mbit, top boot sector)\n");
211 break;
212 case FLASH_AMD016:
213 printf("AM29F016D (16 Mbit, uniform sector size)\n");
214 break;
215 case FLASH_AM160B:
216 printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
217 break;
218 case FLASH_AM160T:
219 printf("AM29LV160T (16 Mbit, top boot sector)\n");
220 break;
221 case FLASH_AM320B:
222 printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
223 break;
224 case FLASH_AM320T:
225 printf("AM29LV320T (32 Mbit, top boot sector)\n");
226 break;
227 case FLASH_AM033C:
228 printf("AM29LV033C (32 Mbit, top boot sector)\n");
229 break;
230 case FLASH_AMLV128U:
231 printf("AM29LV128U (128 Mbit * 2, top boot sector)\n");
232 break;
233 case FLASH_SST800A:
234 printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
235 break;
236 case FLASH_SST160A:
237 printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
238 break;
239 case FLASH_STMW320DT:
240 printf ("M29W320DT (32 M, top sector)\n");
241 break;
242 case FLASH_S29GL128N:
243 printf ("S29GL128N (256 Mbit, uniform sector size)\n");
244 break;
245 default:
246 printf("Unknown Chip Type\n");
247 break;
248 }
249
250 printf(" Size: %ld KB in %d Sectors\n",
251 info->size >> 10, info->sector_count);
252
253 printf(" Sector Start Addresses:");
254 for (i = 0; i < info->sector_count; ++i) {
255 /*
256 * Check if whole sector is erased
257 */
258 if (i != (info->sector_count - 1))
259 size = info->start[i + 1] - info->start[i];
260 else
261 size = info->start[0] + info->size - info->start[i];
262 erased = 1;
263 flash = (volatile unsigned long *)info->start[i];
264 size = size >> 2; /* divide by 4 for longword access */
265 for (k = 0; k < size; k++) {
266 if (*flash++ != 0xffffffff) {
267 erased = 0;
268 break;
269 }
270 }
271
272 if ((i % 5) == 0)
273 printf("\n ");
274 printf(" %08lX%s%s",
275 info->start[i],
276 erased ? " E" : " ", info->protect[i] ? "RO " : " ");
277 }
278 printf("\n");
279 return;
280}
281
282
283/*
284 * The following code cannot be run from FLASH!
285 */
286#ifdef FLASH_BASE1_PRELIM
287static ulong flash_get_size(vu_long * addr, flash_info_t * info)
288{
289 if ((ulong)addr == FLASH_BASE1_PRELIM) {
290 return flash_get_size_2(addr, info);
291 } else {
292 return flash_get_size_1(addr, info);
293 }
294}
295
296static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
297#else
298static ulong flash_get_size(vu_long * addr, flash_info_t * info)
299#endif
300{
301 short i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200302 CONFIG_SYS_FLASH_WORD_SIZE value;
John Otkend4024bb2007-07-26 17:49:11 +0200303 ulong base = (ulong) addr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200304 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
John Otkend4024bb2007-07-26 17:49:11 +0200305
306 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
307
308 /* Write auto select command: read Manufacturer ID */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200309 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
310 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
311 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
John Otkend4024bb2007-07-26 17:49:11 +0200312 udelay(1000);
313
314 value = addr2[0];
315 DEBUGF("FLASH MANUFACT: %x\n", value);
316
317 switch (value) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200318 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200319 info->flash_id = FLASH_MAN_AMD;
320 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200321 case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200322 info->flash_id = FLASH_MAN_FUJ;
323 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200324 case (CONFIG_SYS_FLASH_WORD_SIZE) SST_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200325 info->flash_id = FLASH_MAN_SST;
326 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200327 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200328 info->flash_id = FLASH_MAN_STM;
329 break;
330 default:
331 info->flash_id = FLASH_UNKNOWN;
332 info->sector_count = 0;
333 info->size = 0;
334 return 0; /* no or unknown flash */
335 }
336
337 value = addr2[1]; /* device ID */
338 DEBUGF("\nFLASH DEVICEID: %x\n", value);
339
340 switch (value) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200341 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV040B:
John Otkend4024bb2007-07-26 17:49:11 +0200342 info->flash_id += FLASH_AM040;
343 info->sector_count = 8;
344 info->size = 0x0080000; /* => 512 ko */
345 break;
346
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200347 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F040B:
John Otkend4024bb2007-07-26 17:49:11 +0200348 info->flash_id += FLASH_AM040;
349 info->sector_count = 8;
350 info->size = 0x0080000; /* => 512 ko */
351 break;
352
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200353 case (CONFIG_SYS_FLASH_WORD_SIZE) STM_ID_M29W040B:
John Otkend4024bb2007-07-26 17:49:11 +0200354 info->flash_id += FLASH_AM040;
355 info->sector_count = 8;
356 info->size = 0x0080000; /* => 512 ko */
357 break;
358
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200359 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F016D:
John Otkend4024bb2007-07-26 17:49:11 +0200360 info->flash_id += FLASH_AMD016;
361 info->sector_count = 32;
362 info->size = 0x00200000;
363 break; /* => 2 MB */
364
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200365 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV033C:
John Otkend4024bb2007-07-26 17:49:11 +0200366 info->flash_id += FLASH_AMDLV033C;
367 info->sector_count = 64;
368 info->size = 0x00400000;
369 break; /* => 4 MB */
370
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200371 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400T:
John Otkend4024bb2007-07-26 17:49:11 +0200372 info->flash_id += FLASH_AM400T;
373 info->sector_count = 11;
374 info->size = 0x00080000;
375 break; /* => 0.5 MB */
376
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200377 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400B:
John Otkend4024bb2007-07-26 17:49:11 +0200378 info->flash_id += FLASH_AM400B;
379 info->sector_count = 11;
380 info->size = 0x00080000;
381 break; /* => 0.5 MB */
382
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200383 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800T:
John Otkend4024bb2007-07-26 17:49:11 +0200384 info->flash_id += FLASH_AM800T;
385 info->sector_count = 19;
386 info->size = 0x00100000;
387 break; /* => 1 MB */
388
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200389 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800B:
John Otkend4024bb2007-07-26 17:49:11 +0200390 info->flash_id += FLASH_AM800B;
391 info->sector_count = 19;
392 info->size = 0x00100000;
393 break; /* => 1 MB */
394
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200395 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160T:
John Otkend4024bb2007-07-26 17:49:11 +0200396 info->flash_id += FLASH_AM160T;
397 info->sector_count = 35;
398 info->size = 0x00200000;
399 break; /* => 2 MB */
400
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200401 case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160B:
John Otkend4024bb2007-07-26 17:49:11 +0200402 info->flash_id += FLASH_AM160B;
403 info->sector_count = 35;
404 info->size = 0x00200000;
405 break; /* => 2 MB */
406 default:
407 info->flash_id = FLASH_UNKNOWN;
408 return 0; /* => no or unknown flash */
409 }
410
411 /* set up sector start address table */
412 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
413 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
414 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
415 for (i = 0; i < info->sector_count; i++)
416 info->start[i] = base + (i * 0x00010000);
417 }
418 else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
419 for (i = 0; i < info->sector_count; i++)
420 info->start[i] = base + (i * 0x00010000 * 2);
421 } else {
422 if (info->flash_id & FLASH_BTYPE) {
423 /* set sector offsets for bottom boot block type */
424 info->start[0] = base + 0x00000000;
425 info->start[1] = base + 0x00004000;
426 info->start[2] = base + 0x00006000;
427 info->start[3] = base + 0x00008000;
428 for (i = 4; i < info->sector_count; i++) {
429 info->start[i] =
430 base + (i * 0x00010000) - 0x00030000;
431 }
432 } else {
433 /* set sector offsets for top boot block type */
434 i = info->sector_count - 1;
435 info->start[i--] = base + info->size - 0x00004000;
436 info->start[i--] = base + info->size - 0x00006000;
437 info->start[i--] = base + info->size - 0x00008000;
438 for (; i >= 0; i--) {
439 info->start[i] = base + i * 0x00010000;
440 }
441 }
442 }
443
444 /* check for protected sectors */
445 for (i = 0; i < info->sector_count; i++) {
446 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
447 /* D0 = 1 if protected */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200448 addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
John Otkend4024bb2007-07-26 17:49:11 +0200449
450 /* For AMD29033C flash we need to resend the command of *
451 * reading flash protection for upper 8 Mb of flash */
452 if (i == 32) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200453 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
454 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
455 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
John Otkend4024bb2007-07-26 17:49:11 +0200456 }
457
458 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
459 info->protect[i] = 0;
460 else
461 info->protect[i] = addr2[2] & 1;
462 }
463
464 /* issue bank reset to return to read mode */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200465 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
John Otkend4024bb2007-07-26 17:49:11 +0200466
467 return info->size;
468}
469
470static int wait_for_DQ7_1(flash_info_t * info, int sect)
471{
472 ulong start, now, last;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200473 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
474 (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
John Otkend4024bb2007-07-26 17:49:11 +0200475
476 start = get_timer(0);
477 last = start;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200478 while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
479 (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
480 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
John Otkend4024bb2007-07-26 17:49:11 +0200481 printf("Timeout\n");
482 return -1;
483 }
484 /* show that we're waiting */
485 if ((now - last) > 1000) { /* every second */
486 putc('.');
487 last = now;
488 }
489 }
490 return 0;
491}
492
493#ifdef FLASH_BASE1_PRELIM
494int flash_erase(flash_info_t * info, int s_first, int s_last)
495{
496 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
497 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
498 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
499 ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
500 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
501 return flash_erase_2(info, s_first, s_last);
502 } else {
503 return flash_erase_1(info, s_first, s_last);
504 }
505}
506
507static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
508#else
509int flash_erase(flash_info_t * info, int s_first, int s_last)
510#endif
511{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200512 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
513 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
John Otkend4024bb2007-07-26 17:49:11 +0200514 int flag, prot, sect, l_sect;
515 int i;
516
517 if ((s_first < 0) || (s_first > s_last)) {
518 if (info->flash_id == FLASH_UNKNOWN) {
519 printf("- missing\n");
520 } else {
521 printf("- no sectors to erase\n");
522 }
523 return 1;
524 }
525
526 if (info->flash_id == FLASH_UNKNOWN) {
527 printf("Can't erase unknown flash type - aborted\n");
528 return 1;
529 }
530
531 prot = 0;
532 for (sect = s_first; sect <= s_last; ++sect) {
533 if (info->protect[sect]) {
534 prot++;
535 }
536 }
537
538 if (prot) {
539 printf("- Warning: %d protected sectors will not be erased!\n",
540 prot);
541 } else {
542 printf("\n");
543 }
544
545 l_sect = -1;
546
547 /* Disable interrupts which might cause a timeout here */
548 flag = disable_interrupts();
549
550 /* Start erase on unprotected sectors */
551 for (sect = s_first; sect <= s_last; sect++) {
552 if (info->protect[sect] == 0) { /* not protected */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200553 addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
John Otkend4024bb2007-07-26 17:49:11 +0200554
555 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200556 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
557 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
558 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
559 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
560 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
561 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00500050; /* block erase */
John Otkend4024bb2007-07-26 17:49:11 +0200562 for (i = 0; i < 50; i++)
563 udelay(1000); /* wait 1 ms */
564 } else {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200565 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
566 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
567 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
568 addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
569 addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
570 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
John Otkend4024bb2007-07-26 17:49:11 +0200571 }
572 l_sect = sect;
573 /*
574 * Wait for each sector to complete, it's more
575 * reliable. According to AMD Spec, you must
576 * issue all erase commands within a specified
577 * timeout. This has been seen to fail, especially
578 * if printf()s are included (for debug)!!
579 */
580 wait_for_DQ7_1(info, sect);
581 }
582 }
583
584 /* re-enable interrupts if necessary */
585 if (flag)
586 enable_interrupts();
587
588 /* wait at least 80us - let's wait 1 ms */
589 udelay(1000);
590
591 /* reset to read mode */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200592 addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
593 addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
John Otkend4024bb2007-07-26 17:49:11 +0200594
595 printf(" done\n");
596 return 0;
597}
598
599/*-----------------------------------------------------------------------
600 * Copy memory to flash, returns:
601 * 0 - OK
602 * 1 - write timeout
603 * 2 - Flash not erased
604 */
605int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
606{
607 ulong cp, wp, data;
608 int i, l, rc;
609
610 wp = (addr & ~3); /* get lower word aligned address */
611
612 /*
613 * handle unaligned start bytes
614 */
615 if ((l = addr - wp) != 0) {
616 data = 0;
617 for (i = 0, cp = wp; i < l; ++i, ++cp) {
618 data = (data << 8) | (*(uchar *) cp);
619 }
620 for (; i < 4 && cnt > 0; ++i) {
621 data = (data << 8) | *src++;
622 --cnt;
623 ++cp;
624 }
625 for (; cnt == 0 && i < 4; ++i, ++cp) {
626 data = (data << 8) | (*(uchar *) cp);
627 }
628
629 if ((rc = write_word(info, wp, data)) != 0) {
630 return rc;
631 }
632 wp += 4;
633 }
634
635 /*
636 * handle word aligned part
637 */
638 while (cnt >= 4) {
639 data = 0;
640 for (i = 0; i < 4; ++i) {
641 data = (data << 8) | *src++;
642 }
643 if ((rc = write_word(info, wp, data)) != 0) {
644 return rc;
645 }
646 wp += 4;
647 cnt -= 4;
648 }
649
650 if (cnt == 0) {
651 return 0;
652 }
653
654 /*
655 * handle unaligned tail bytes
656 */
657 data = 0;
658 for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
659 data = (data << 8) | *src++;
660 --cnt;
661 }
662 for (; i < 4; ++i, ++cp) {
663 data = (data << 8) | (*(uchar *) cp);
664 }
665
666 return (write_word(info, wp, data));
667}
668
669/*-----------------------------------------------------------------------
670 * Copy memory to flash, returns:
671 * 0 - OK
672 * 1 - write timeout
673 * 2 - Flash not erased
674 */
675#ifdef FLASH_BASE1_PRELIM
676static int write_word(flash_info_t * info, ulong dest, ulong data)
677{
678 if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
679 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
680 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
681 ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
682 ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
683 return write_word_2(info, dest, data);
684 } else {
685 return write_word_1(info, dest, data);
686 }
687}
688
689static int write_word_1(flash_info_t * info, ulong dest, ulong data)
690#else
691static int write_word(flash_info_t * info, ulong dest, ulong data)
692#endif
693{
Wolfgang Denk030ec522009-09-11 11:44:39 +0200694 ulong *data_ptr = &data;
695 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]);
696 volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest;
697 volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
John Otkend4024bb2007-07-26 17:49:11 +0200698 ulong start;
699 int i;
700
701 /* Check if Flash is (sufficiently) erased */
702 if ((*((vu_long *)dest) & data) != data) {
703 return 2;
704 }
705
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200706 for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
John Otkend4024bb2007-07-26 17:49:11 +0200707 int flag;
708
709 /* Disable interrupts which might cause a timeout here */
710 flag = disable_interrupts();
711
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200712 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
713 addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
714 addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
John Otkend4024bb2007-07-26 17:49:11 +0200715
716 dest2[i] = data2[i];
717
718 /* re-enable interrupts if necessary */
719 if (flag)
720 enable_interrupts();
721
722 /* data polling for D7 */
723 start = get_timer(0);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200724 while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
725 (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
John Otkend4024bb2007-07-26 17:49:11 +0200726
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200727 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
John Otkend4024bb2007-07-26 17:49:11 +0200728 return 1;
729 }
730 }
731 }
732
733 return 0;
734}
735
736#ifdef FLASH_BASE1_PRELIM
737
738/*
739 * The following code cannot be run from FLASH!
740 */
741static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
742{
743 short i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200744 CONFIG_SYS_FLASH_CHAR_SIZE value;
John Otkend4024bb2007-07-26 17:49:11 +0200745 ulong base = (ulong) addr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200746 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
John Otkend4024bb2007-07-26 17:49:11 +0200747
748 DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
749
750 /* Write auto select command: read Manufacturer ID */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200751 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
752 addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
753 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
John Otkend4024bb2007-07-26 17:49:11 +0200754 udelay(1000);
755
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200756 value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0];
John Otkend4024bb2007-07-26 17:49:11 +0200757 DEBUGF("FLASH MANUFACT: %x\n", value);
758
759 switch (value) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200760 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200761 info->flash_id = FLASH_MAN_AMD;
762 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200763 case (CONFIG_SYS_FLASH_CHAR_SIZE) FUJ_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200764 info->flash_id = FLASH_MAN_FUJ;
765 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200766 case (CONFIG_SYS_FLASH_CHAR_SIZE) SST_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200767 info->flash_id = FLASH_MAN_SST;
768 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200769 case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_MANUFACT:
John Otkend4024bb2007-07-26 17:49:11 +0200770 info->flash_id = FLASH_MAN_STM;
771 break;
772 default:
773 info->flash_id = FLASH_UNKNOWN;
774 info->sector_count = 0;
775 info->size = 0;
776 return 0; /* no or unknown flash */
777 }
778
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200779 value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[2]; /* device ID */
John Otkend4024bb2007-07-26 17:49:11 +0200780 DEBUGF("\nFLASH DEVICEID: %x\n", value);
781
782 switch (value) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200783 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV040B:
John Otkend4024bb2007-07-26 17:49:11 +0200784 info->flash_id += FLASH_AM040;
785 info->sector_count = 8;
786 info->size = 0x0080000; /* => 512 ko */
787 break;
788
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200789 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F040B:
John Otkend4024bb2007-07-26 17:49:11 +0200790 info->flash_id += FLASH_AM040;
791 info->sector_count = 8;
792 info->size = 0x0080000; /* => 512 ko */
793 break;
794
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200795 case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_ID_M29W040B:
John Otkend4024bb2007-07-26 17:49:11 +0200796 info->flash_id += FLASH_AM040;
797 info->sector_count = 8;
798 info->size = 0x0080000; /* => 512 ko */
799 break;
800
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200801 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F016D:
John Otkend4024bb2007-07-26 17:49:11 +0200802 info->flash_id += FLASH_AMD016;
803 info->sector_count = 32;
804 info->size = 0x00200000;
805 break; /* => 2 MB */
806
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200807 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV033C:
John Otkend4024bb2007-07-26 17:49:11 +0200808 info->flash_id += FLASH_AMDLV033C;
809 info->sector_count = 64;
810 info->size = 0x00400000;
811 break; /* => 4 MB */
812
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200813 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400T:
John Otkend4024bb2007-07-26 17:49:11 +0200814 info->flash_id += FLASH_AM400T;
815 info->sector_count = 11;
816 info->size = 0x00080000;
817 break; /* => 0.5 MB */
818
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200819 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400B:
John Otkend4024bb2007-07-26 17:49:11 +0200820 info->flash_id += FLASH_AM400B;
821 info->sector_count = 11;
822 info->size = 0x00080000;
823 break; /* => 0.5 MB */
824
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200825 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800T:
John Otkend4024bb2007-07-26 17:49:11 +0200826 info->flash_id += FLASH_AM800T;
827 info->sector_count = 19;
828 info->size = 0x00100000;
829 break; /* => 1 MB */
830
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200831 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800B:
John Otkend4024bb2007-07-26 17:49:11 +0200832 info->flash_id += FLASH_AM800B;
833 info->sector_count = 19;
834 info->size = 0x00100000;
835 break; /* => 1 MB */
836
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200837 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160T:
John Otkend4024bb2007-07-26 17:49:11 +0200838 info->flash_id += FLASH_AM160T;
839 info->sector_count = 35;
840 info->size = 0x00200000;
841 break; /* => 2 MB */
842
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200843 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160B:
John Otkend4024bb2007-07-26 17:49:11 +0200844 info->flash_id += FLASH_AM160B;
845 info->sector_count = 35;
846 info->size = 0x00200000;
847 break; /* => 2 MB */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200848 case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_MIRROR:
849 if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_2
850 && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) {
John Otkend4024bb2007-07-26 17:49:11 +0200851 info->flash_id += FLASH_AMLV128U;
852 info->sector_count = 256;
853 info->size = 0x01000000;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200854 } else if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_2
855 && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) {
John Otkend4024bb2007-07-26 17:49:11 +0200856 info->flash_id += FLASH_S29GL128N;
857 info->sector_count = 128;
858 info->size = 0x01000000;
859 }
860 else
861 info->flash_id = FLASH_UNKNOWN;
862 break; /* => 2 MB */
863
864 default:
865 info->flash_id = FLASH_UNKNOWN;
866 return 0; /* => no or unknown flash */
867 }
868
869 /* set up sector start address table */
870 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
871 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
872 ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
873 for (i = 0; i < info->sector_count; i++)
874 info->start[i] = base + (i * 0x00010000);
875 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
876 for (i = 0; i < info->sector_count; i++)
877 info->start[i] = base + (i * 0x00010000);
878 } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
879 for (i = 0; i < info->sector_count; i++)
880 info->start[i] = base + (i * 0x00020000);
881 } else {
882 if (info->flash_id & FLASH_BTYPE) {
883 /* set sector offsets for bottom boot block type */
884 info->start[0] = base + 0x00000000;
885 info->start[1] = base + 0x00004000;
886 info->start[2] = base + 0x00006000;
887 info->start[3] = base + 0x00008000;
888 for (i = 4; i < info->sector_count; i++) {
889 info->start[i] =
890 base + (i * 0x00010000) - 0x00030000;
891 }
892 } else {
893 /* set sector offsets for top boot block type */
894 i = info->sector_count - 1;
895 info->start[i--] = base + info->size - 0x00004000;
896 info->start[i--] = base + info->size - 0x00006000;
897 info->start[i--] = base + info->size - 0x00008000;
898 for (; i >= 0; i--) {
899 info->start[i] = base + i * 0x00010000;
900 }
901 }
902 }
903
904 /* check for protected sectors */
905 for (i = 0; i < info->sector_count; i++) {
906 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
907 /* D0 = 1 if protected */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200908 addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
John Otkend4024bb2007-07-26 17:49:11 +0200909
910 /* For AMD29033C flash we need to resend the command of *
911 * reading flash protection for upper 8 Mb of flash */
912 if (i == 32) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200913 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
914 addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
915 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090;
John Otkend4024bb2007-07-26 17:49:11 +0200916 }
917
918 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
919 info->protect[i] = 0;
920 else
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200921 info->protect[i] = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[4] & 1;
John Otkend4024bb2007-07-26 17:49:11 +0200922 }
923
924 /* issue bank reset to return to read mode */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200925 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0;
John Otkend4024bb2007-07-26 17:49:11 +0200926 return info->size;
927}
928
929static int wait_for_DQ7_2(flash_info_t * info, int sect)
930{
931 ulong start, now, last;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200932 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
933 (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
John Otkend4024bb2007-07-26 17:49:11 +0200934
935 start = get_timer(0);
936 last = start;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200937 while (((CONFIG_SYS_FLASH_WORD_SIZE)addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) !=
938 (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) {
939 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
John Otkend4024bb2007-07-26 17:49:11 +0200940 printf("Timeout\n");
941 return -1;
942 }
943 /* show that we're waiting */
944 if ((now - last) > 1000) { /* every second */
945 putc('.');
946 last = now;
947 }
948 }
949 return 0;
950}
951
952static int flash_erase_2(flash_info_t * info, int s_first, int s_last)
953{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200954 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
955 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
John Otkend4024bb2007-07-26 17:49:11 +0200956 int flag, prot, sect, l_sect;
957 int i;
958
959 if ((s_first < 0) || (s_first > s_last)) {
960 if (info->flash_id == FLASH_UNKNOWN) {
961 printf("- missing\n");
962 } else {
963 printf("- no sectors to erase\n");
964 }
965 return 1;
966 }
967
968 if (info->flash_id == FLASH_UNKNOWN) {
969 printf("Can't erase unknown flash type - aborted\n");
970 return 1;
971 }
972
973 prot = 0;
974 for (sect = s_first; sect <= s_last; ++sect) {
975 if (info->protect[sect]) {
976 prot++;
977 }
978 }
979
980 if (prot) {
981 printf("- Warning: %d protected sectors will not be erased!\n",
982 prot);
983 } else {
984 printf("\n");
985 }
986
987 l_sect = -1;
988
989 /* Disable interrupts which might cause a timeout here */
990 flag = disable_interrupts();
991
992 /* Start erase on unprotected sectors */
993 for (sect = s_first; sect <= s_last; sect++) {
994 if (info->protect[sect] == 0) { /* not protected */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200995 addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
John Otkend4024bb2007-07-26 17:49:11 +0200996
997 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200998 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
999 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
1000 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080;
1001 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
1002 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
1003 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x50505050; /* block erase */
John Otkend4024bb2007-07-26 17:49:11 +02001004 for (i = 0; i < 50; i++)
1005 udelay(1000); /* wait 1 ms */
1006 } else {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001007 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
1008 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
1009 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080;
1010 addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
1011 addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
1012 addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x30303030; /* sector erase */
John Otkend4024bb2007-07-26 17:49:11 +02001013 }
1014 l_sect = sect;
1015 /*
1016 * Wait for each sector to complete, it's more
1017 * reliable. According to AMD Spec, you must
1018 * issue all erase commands within a specified
1019 * timeout. This has been seen to fail, especially
1020 * if printf()s are included (for debug)!!
1021 */
1022 wait_for_DQ7_2(info, sect);
1023 }
1024 }
1025
1026 /* re-enable interrupts if necessary */
1027 if (flag)
1028 enable_interrupts();
1029
1030 /* wait at least 80us - let's wait 1 ms */
1031 udelay(1000);
1032
1033 /* reset to read mode */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001034 addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
1035 addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */
John Otkend4024bb2007-07-26 17:49:11 +02001036
1037 printf(" done\n");
1038 return 0;
1039}
1040
1041static int write_word_2(flash_info_t * info, ulong dest, ulong data)
1042{
Wolfgang Denk030ec522009-09-11 11:44:39 +02001043 ulong *data_ptr = &data;
1044 volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]);
1045 volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest;
1046 volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr;
John Otkend4024bb2007-07-26 17:49:11 +02001047 ulong start;
1048 int i;
1049
1050 /* Check if Flash is (sufficiently) erased */
1051 if ((*((vu_long *)dest) & data) != data) {
1052 return 2;
1053 }
1054
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001055 for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
John Otkend4024bb2007-07-26 17:49:11 +02001056 int flag;
1057
1058 /* Disable interrupts which might cause a timeout here */
1059 flag = disable_interrupts();
1060
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001061 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA;
1062 addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555;
1063 addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xA0A0A0A0;
John Otkend4024bb2007-07-26 17:49:11 +02001064
1065 dest2[i] = data2[i];
1066
1067 /* re-enable interrupts if necessary */
1068 if (flag)
1069 enable_interrupts();
1070
1071 /* data polling for D7 */
1072 start = get_timer(0);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001073 while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) !=
1074 (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080)) {
John Otkend4024bb2007-07-26 17:49:11 +02001075
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001076 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
John Otkend4024bb2007-07-26 17:49:11 +02001077 return 1;
1078 }
1079 }
1080 }
1081
1082 return 0;
1083}
1084
1085#endif /* FLASH_BASE1_PRELIM */