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wdenk38635852002-08-27 05:55:31 +00001/*
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 * Memory Functions
26 *
27 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
28 */
29
30#include <common.h>
31#include <command.h>
wdenk71f95112003-06-15 22:40:42 +000032#if (CONFIG_COMMANDS & CFG_CMD_MMC)
33#include <mmc.h>
34#endif
wdenk2abbe072003-06-16 23:50:08 +000035#ifdef CONFIG_HAS_DATAFLASH
36#include <dataflash.h>
37#endif
wdenk38635852002-08-27 05:55:31 +000038
wdenk9d2b18a2003-06-28 23:11:04 +000039#if (CONFIG_COMMANDS & (CFG_CMD_MEMORY | \
40 CFG_CMD_I2C | \
41 CFG_CMD_PCI | \
42 CMD_CMD_PORTIO ) )
wdenk38635852002-08-27 05:55:31 +000043int cmd_get_data_size(char* arg, int default_size)
44{
45 /* Check for a size specification .b, .w or .l.
46 */
47 int len = strlen(arg);
48 if (len > 2 && arg[len-2] == '.') {
49 switch(arg[len-1]) {
50 case 'b':
51 return 1;
52 case 'w':
53 return 2;
54 case 'l':
55 return 4;
wdenk27b207f2003-07-24 23:38:38 +000056 default:
57 return -1;
wdenk38635852002-08-27 05:55:31 +000058 }
59 }
60 return default_size;
61}
62#endif
63
64#if (CONFIG_COMMANDS & CFG_CMD_MEMORY)
65
66#ifdef CMD_MEM_DEBUG
67#define PRINTF(fmt,args...) printf (fmt ,##args)
68#else
69#define PRINTF(fmt,args...)
70#endif
71
72static int mod_mem(cmd_tbl_t *, int, int, int, char *[]);
73
74/* Display values from last command.
75 * Memory modify remembered values are different from display memory.
76 */
77uint dp_last_addr, dp_last_size;
78uint dp_last_length = 0x40;
79uint mm_last_addr, mm_last_size;
80
81static ulong base_address = 0;
82
83/* Memory Display
84 *
85 * Syntax:
86 * md{.b, .w, .l} {addr} {len}
87 */
88#define DISP_LINE_LEN 16
89int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
90{
wdenk27b207f2003-07-24 23:38:38 +000091 ulong addr, length;
wdenk38635852002-08-27 05:55:31 +000092 ulong i, nbytes, linebytes;
93 u_char *cp;
wdenk27b207f2003-07-24 23:38:38 +000094 int size;
wdenk38635852002-08-27 05:55:31 +000095 int rc = 0;
96
97 /* We use the last specified parameters, unless new ones are
98 * entered.
99 */
100 addr = dp_last_addr;
101 size = dp_last_size;
102 length = dp_last_length;
103
104 if (argc < 2) {
105 printf ("Usage:\n%s\n", cmdtp->usage);
106 return 1;
107 }
108
109 if ((flag & CMD_FLAG_REPEAT) == 0) {
110 /* New command specified. Check for a size specification.
111 * Defaults to long if no or incorrect specification.
112 */
wdenk27b207f2003-07-24 23:38:38 +0000113 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
114 return 1;
wdenk38635852002-08-27 05:55:31 +0000115
116 /* Address is specified since argc > 1
117 */
118 addr = simple_strtoul(argv[1], NULL, 16);
119 addr += base_address;
120
121 /* If another parameter, it is the length to display.
122 * Length is the number of objects, not number of bytes.
123 */
124 if (argc > 2)
125 length = simple_strtoul(argv[2], NULL, 16);
126 }
127
128 /* Print the lines.
129 *
130 * We buffer all read data, so we can make sure data is read only
131 * once, and all accesses are with the specified bus width.
132 */
133 nbytes = length * size;
134 do {
135 char linebuf[DISP_LINE_LEN];
136 uint *uip = (uint *)linebuf;
137 ushort *usp = (ushort *)linebuf;
138 u_char *ucp = (u_char *)linebuf;
wdenk5779d8d2003-12-06 23:55:10 +0000139#ifdef CONFIG_HAS_DATAFLASH
140 int rc;
141#endif
wdenk38635852002-08-27 05:55:31 +0000142 printf("%08lx:", addr);
143 linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
wdenk2abbe072003-06-16 23:50:08 +0000144
145#ifdef CONFIG_HAS_DATAFLASH
wdenk5779d8d2003-12-06 23:55:10 +0000146 if ((rc = read_dataflash(addr, (linebytes/size)*size, linebuf)) == DATAFLASH_OK){
147 /* if outside dataflash */
148 /*if (rc != 1) {
149 dataflash_perror (rc);
150 return (1);
151 }*/
wdenk2abbe072003-06-16 23:50:08 +0000152 for (i=0; i<linebytes; i+= size) {
153 if (size == 4) {
154 printf(" %08x", *uip++);
155 } else if (size == 2) {
156 printf(" %04x", *usp++);
157 } else {
158 printf(" %02x", *ucp++);
159 }
160 addr += size;
161 }
wdenk8bde7f72003-06-27 21:31:46 +0000162
wdenk2abbe072003-06-16 23:50:08 +0000163 } else { /* addr does not correspond to DataFlash */
164#endif
wdenk38635852002-08-27 05:55:31 +0000165 for (i=0; i<linebytes; i+= size) {
166 if (size == 4) {
167 printf(" %08x", (*uip++ = *((uint *)addr)));
168 } else if (size == 2) {
169 printf(" %04x", (*usp++ = *((ushort *)addr)));
170 } else {
171 printf(" %02x", (*ucp++ = *((u_char *)addr)));
172 }
173 addr += size;
174 }
wdenk2abbe072003-06-16 23:50:08 +0000175#ifdef CONFIG_HAS_DATAFLASH
176 }
177#endif
wdenk38635852002-08-27 05:55:31 +0000178 printf(" ");
179 cp = linebuf;
180 for (i=0; i<linebytes; i++) {
181 if ((*cp < 0x20) || (*cp > 0x7e))
182 printf(".");
183 else
184 printf("%c", *cp);
185 cp++;
186 }
187 printf("\n");
188 nbytes -= linebytes;
189 if (ctrlc()) {
190 rc = 1;
191 break;
192 }
193 } while (nbytes > 0);
194
195 dp_last_addr = addr;
196 dp_last_length = length;
197 dp_last_size = size;
198 return (rc);
199}
200
201int do_mem_mm ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
202{
203 return mod_mem (cmdtp, 1, flag, argc, argv);
204}
205int do_mem_nm ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
206{
207 return mod_mem (cmdtp, 0, flag, argc, argv);
208}
209
210int do_mem_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
211{
wdenk27b207f2003-07-24 23:38:38 +0000212 ulong addr, writeval, count;
213 int size;
wdenk38635852002-08-27 05:55:31 +0000214
215 if ((argc < 3) || (argc > 4)) {
216 printf ("Usage:\n%s\n", cmdtp->usage);
217 return 1;
218 }
219
220 /* Check for size specification.
221 */
wdenk27b207f2003-07-24 23:38:38 +0000222 if ((size = cmd_get_data_size(argv[0], 4)) < 1)
223 return 1;
wdenk38635852002-08-27 05:55:31 +0000224
225 /* Address is specified since argc > 1
226 */
227 addr = simple_strtoul(argv[1], NULL, 16);
228 addr += base_address;
229
230 /* Get the value to write.
231 */
232 writeval = simple_strtoul(argv[2], NULL, 16);
233
234 /* Count ? */
235 if (argc == 4) {
236 count = simple_strtoul(argv[3], NULL, 16);
237 } else {
238 count = 1;
239 }
240
241 while (count-- > 0) {
242 if (size == 4)
243 *((ulong *)addr) = (ulong )writeval;
244 else if (size == 2)
245 *((ushort *)addr) = (ushort)writeval;
246 else
247 *((u_char *)addr) = (u_char)writeval;
248 addr += size;
249 }
250 return 0;
251}
252
253int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
254{
wdenk27b207f2003-07-24 23:38:38 +0000255 ulong addr1, addr2, count, ngood;
256 int size;
wdenk38635852002-08-27 05:55:31 +0000257 int rcode = 0;
258
259 if (argc != 4) {
260 printf ("Usage:\n%s\n", cmdtp->usage);
261 return 1;
262 }
263
264 /* Check for size specification.
265 */
wdenk27b207f2003-07-24 23:38:38 +0000266 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
267 return 1;
wdenk38635852002-08-27 05:55:31 +0000268
269 addr1 = simple_strtoul(argv[1], NULL, 16);
270 addr1 += base_address;
271
272 addr2 = simple_strtoul(argv[2], NULL, 16);
273 addr2 += base_address;
274
275 count = simple_strtoul(argv[3], NULL, 16);
276
wdenk2abbe072003-06-16 23:50:08 +0000277#ifdef CONFIG_HAS_DATAFLASH
278 if (addr_dataflash(addr1) | addr_dataflash(addr2)){
279 printf("Comparison with DataFlash space not supported.\n\r");
280 return 0;
281 }
282#endif
283
wdenk38635852002-08-27 05:55:31 +0000284 ngood = 0;
285
286 while (count-- > 0) {
287 if (size == 4) {
288 ulong word1 = *(ulong *)addr1;
289 ulong word2 = *(ulong *)addr2;
290 if (word1 != word2) {
291 printf("word at 0x%08lx (0x%08lx) "
292 "!= word at 0x%08lx (0x%08lx)\n",
293 addr1, word1, addr2, word2);
294 rcode = 1;
295 break;
296 }
297 }
298 else if (size == 2) {
299 ushort hword1 = *(ushort *)addr1;
300 ushort hword2 = *(ushort *)addr2;
301 if (hword1 != hword2) {
302 printf("halfword at 0x%08lx (0x%04x) "
303 "!= halfword at 0x%08lx (0x%04x)\n",
304 addr1, hword1, addr2, hword2);
305 rcode = 1;
306 break;
307 }
308 }
309 else {
310 u_char byte1 = *(u_char *)addr1;
311 u_char byte2 = *(u_char *)addr2;
312 if (byte1 != byte2) {
313 printf("byte at 0x%08lx (0x%02x) "
314 "!= byte at 0x%08lx (0x%02x)\n",
315 addr1, byte1, addr2, byte2);
316 rcode = 1;
317 break;
318 }
319 }
320 ngood++;
321 addr1 += size;
322 addr2 += size;
323 }
324
325 printf("Total of %ld %s%s were the same\n",
326 ngood, size == 4 ? "word" : size == 2 ? "halfword" : "byte",
327 ngood == 1 ? "" : "s");
328 return rcode;
329}
330
331int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
332{
wdenk27b207f2003-07-24 23:38:38 +0000333 ulong addr, dest, count;
334 int size;
wdenk38635852002-08-27 05:55:31 +0000335
336 if (argc != 4) {
337 printf ("Usage:\n%s\n", cmdtp->usage);
338 return 1;
339 }
340
341 /* Check for size specification.
342 */
wdenk27b207f2003-07-24 23:38:38 +0000343 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
344 return 1;
wdenk38635852002-08-27 05:55:31 +0000345
346 addr = simple_strtoul(argv[1], NULL, 16);
347 addr += base_address;
348
349 dest = simple_strtoul(argv[2], NULL, 16);
350 dest += base_address;
351
352 count = simple_strtoul(argv[3], NULL, 16);
353
354 if (count == 0) {
355 puts ("Zero length ???\n");
356 return 1;
357 }
358
359#ifndef CFG_NO_FLASH
360 /* check if we are copying to Flash */
wdenk2abbe072003-06-16 23:50:08 +0000361 if ( (addr2info(dest) != NULL)
362#ifdef CONFIG_HAS_DATAFLASH
363 && (!addr_dataflash(addr))
364#endif
365 ) {
wdenk38635852002-08-27 05:55:31 +0000366 int rc;
367
368 printf ("Copy to Flash... ");
369
370 rc = flash_write ((uchar *)addr, dest, count*size);
371 if (rc != 0) {
372 flash_perror (rc);
373 return (1);
374 }
375 puts ("done\n");
376 return 0;
377 }
378#endif
379
wdenk71f95112003-06-15 22:40:42 +0000380#if (CONFIG_COMMANDS & CFG_CMD_MMC)
381 if (mmc2info(dest)) {
382 int rc;
383
384 printf ("Copy to MMC... ");
385 switch (rc = mmc_write ((uchar *)addr, dest, count*size)) {
386 case 0:
387 printf ("\n");
388 return 1;
389 case -1:
390 printf("failed\n");
391 return 1;
392 default:
393 printf ("%s[%d] FIXME: rc=%d\n",__FILE__,__LINE__,rc);
394 return 1;
395 }
396 puts ("done\n");
397 return 0;
398 }
399
400 if (mmc2info(addr)) {
401 int rc;
402
403 printf ("Copy from MMC... ");
404 switch (rc = mmc_read (addr, (uchar *)dest, count*size)) {
405 case 0:
406 printf ("\n");
407 return 1;
408 case -1:
409 printf("failed\n");
410 return 1;
411 default:
412 printf ("%s[%d] FIXME: rc=%d\n",__FILE__,__LINE__,rc);
413 return 1;
414 }
415 puts ("done\n");
416 return 0;
417 }
418#endif
419
wdenk2abbe072003-06-16 23:50:08 +0000420#ifdef CONFIG_HAS_DATAFLASH
421 /* Check if we are copying from RAM or Flash to DataFlash */
422 if (addr_dataflash(dest) && !addr_dataflash(addr)){
423 int rc;
424
425 printf ("Copy to DataFlash... ");
426
427 rc = write_dataflash (dest, addr, count*size);
428
429 if (rc != 1) {
430 dataflash_perror (rc);
431 return (1);
432 }
433 puts ("done\n");
434 return 0;
435 }
wdenk8bde7f72003-06-27 21:31:46 +0000436
wdenk2abbe072003-06-16 23:50:08 +0000437 /* Check if we are copying from DataFlash to RAM */
438 if (addr_dataflash(addr) && !addr_dataflash(dest) && (addr2info(dest)==NULL) ){
wdenk5779d8d2003-12-06 23:55:10 +0000439 int rc;
440 rc = read_dataflash(addr, count * size, (char *) dest);
441 if (rc != 1) {
442 dataflash_perror (rc);
443 return (1);
444 }
wdenk2abbe072003-06-16 23:50:08 +0000445 return 0;
446 }
447
448 if (addr_dataflash(addr) && addr_dataflash(dest)){
449 printf("Unsupported combination of source/destination.\n\r");
450 return 1;
451 }
452#endif
453
wdenk38635852002-08-27 05:55:31 +0000454 while (count-- > 0) {
455 if (size == 4)
456 *((ulong *)dest) = *((ulong *)addr);
457 else if (size == 2)
458 *((ushort *)dest) = *((ushort *)addr);
459 else
460 *((u_char *)dest) = *((u_char *)addr);
461 addr += size;
462 dest += size;
463 }
464 return 0;
465}
466
467int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
468{
469 if (argc > 1) {
470 /* Set new base address.
471 */
472 base_address = simple_strtoul(argv[1], NULL, 16);
473 }
474 /* Print the current base address.
475 */
476 printf("Base Address: 0x%08lx\n", base_address);
477 return 0;
478}
479
480int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
481{
wdenk27b207f2003-07-24 23:38:38 +0000482 ulong addr, length, i, junk;
483 int size;
wdenk38635852002-08-27 05:55:31 +0000484 volatile uint *longp;
485 volatile ushort *shortp;
486 volatile u_char *cp;
487
488 if (argc < 3) {
489 printf ("Usage:\n%s\n", cmdtp->usage);
490 return 1;
491 }
492
493 /* Check for a size spefication.
494 * Defaults to long if no or incorrect specification.
495 */
wdenk27b207f2003-07-24 23:38:38 +0000496 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
497 return 1;
wdenk38635852002-08-27 05:55:31 +0000498
499 /* Address is always specified.
500 */
501 addr = simple_strtoul(argv[1], NULL, 16);
502
503 /* Length is the number of objects, not number of bytes.
504 */
505 length = simple_strtoul(argv[2], NULL, 16);
506
507 /* We want to optimize the loops to run as fast as possible.
508 * If we have only one object, just run infinite loops.
509 */
510 if (length == 1) {
511 if (size == 4) {
512 longp = (uint *)addr;
513 for (;;)
514 i = *longp;
515 }
516 if (size == 2) {
517 shortp = (ushort *)addr;
518 for (;;)
519 i = *shortp;
520 }
521 cp = (u_char *)addr;
522 for (;;)
523 i = *cp;
524 }
525
526 if (size == 4) {
527 for (;;) {
528 longp = (uint *)addr;
529 i = length;
530 while (i-- > 0)
531 junk = *longp++;
532 }
533 }
534 if (size == 2) {
535 for (;;) {
536 shortp = (ushort *)addr;
537 i = length;
538 while (i-- > 0)
539 junk = *shortp++;
540 }
541 }
542 for (;;) {
543 cp = (u_char *)addr;
544 i = length;
545 while (i-- > 0)
546 junk = *cp++;
547 }
548}
549
550/*
551 * Perform a memory test. A more complete alternative test can be
552 * configured using CFG_ALT_MEMTEST. The complete test loops until
553 * interrupted by ctrl-c or by a failure of one of the sub-tests.
554 */
555int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
556{
557 vu_long *addr, *start, *end;
558 ulong val;
559 ulong readback;
560
561#if defined(CFG_ALT_MEMTEST)
562 vu_long addr_mask;
563 vu_long offset;
564 vu_long test_offset;
565 vu_long pattern;
566 vu_long temp;
567 vu_long anti_pattern;
568 vu_long num_words;
wdenk5f535fe2003-09-18 09:21:33 +0000569#if defined(CFG_MEMTEST_SCRATCH)
570 vu_long *dummy = (vu_long*)CFG_MEMTEST_SCRATCH;
571#else
wdenk38635852002-08-27 05:55:31 +0000572 vu_long *dummy = NULL;
wdenk5f535fe2003-09-18 09:21:33 +0000573#endif
wdenk38635852002-08-27 05:55:31 +0000574 int j;
575 int iterations = 1;
576
577 static const ulong bitpattern[] = {
578 0x00000001, /* single bit */
579 0x00000003, /* two adjacent bits */
580 0x00000007, /* three adjacent bits */
581 0x0000000F, /* four adjacent bits */
582 0x00000005, /* two non-adjacent bits */
583 0x00000015, /* three non-adjacent bits */
584 0x00000055, /* four non-adjacent bits */
585 0xaaaaaaaa, /* alternating 1/0 */
586 };
587#else
588 ulong incr;
589 ulong pattern;
590 int rcode = 0;
591#endif
592
593 if (argc > 1) {
594 start = (ulong *)simple_strtoul(argv[1], NULL, 16);
595 } else {
596 start = (ulong *)CFG_MEMTEST_START;
597 }
598
599 if (argc > 2) {
600 end = (ulong *)simple_strtoul(argv[2], NULL, 16);
601 } else {
602 end = (ulong *)(CFG_MEMTEST_END);
603 }
604
605 if (argc > 3) {
606 pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
607 } else {
608 pattern = 0;
609 }
610
611#if defined(CFG_ALT_MEMTEST)
612 printf ("Testing %08x ... %08x:\n", (uint)start, (uint)end);
613 PRINTF("%s:%d: start 0x%p end 0x%p\n",
614 __FUNCTION__, __LINE__, start, end);
615
616 for (;;) {
617 if (ctrlc()) {
618 putc ('\n');
619 return 1;
620 }
621
622 printf("Iteration: %6d\r", iterations);
623 PRINTF("Iteration: %6d\n", iterations);
624 iterations++;
625
626 /*
627 * Data line test: write a pattern to the first
628 * location, write the 1's complement to a 'parking'
629 * address (changes the state of the data bus so a
630 * floating bus doen't give a false OK), and then
631 * read the value back. Note that we read it back
632 * into a variable because the next time we read it,
633 * it might be right (been there, tough to explain to
634 * the quality guys why it prints a failure when the
635 * "is" and "should be" are obviously the same in the
636 * error message).
637 *
638 * Rather than exhaustively testing, we test some
639 * patterns by shifting '1' bits through a field of
640 * '0's and '0' bits through a field of '1's (i.e.
641 * pattern and ~pattern).
642 */
643 addr = start;
644 for (j = 0; j < sizeof(bitpattern)/sizeof(bitpattern[0]); j++) {
645 val = bitpattern[j];
646 for(; val != 0; val <<= 1) {
647 *addr = val;
648 *dummy = ~val; /* clear the test data off of the bus */
649 readback = *addr;
650 if(readback != val) {
651 printf ("FAILURE (data line): "
652 "expected %08lx, actual %08lx\n",
653 val, readback);
654 }
655 *addr = ~val;
656 *dummy = val;
657 readback = *addr;
658 if(readback != ~val) {
659 printf ("FAILURE (data line): "
660 "Is %08lx, should be %08lx\n",
661 val, readback);
662 }
663 }
664 }
665
666 /*
667 * Based on code whose Original Author and Copyright
668 * information follows: Copyright (c) 1998 by Michael
669 * Barr. This software is placed into the public
670 * domain and may be used for any purpose. However,
671 * this notice must not be changed or removed and no
672 * warranty is either expressed or implied by its
673 * publication or distribution.
674 */
675
676 /*
677 * Address line test
678 *
679 * Description: Test the address bus wiring in a
680 * memory region by performing a walking
681 * 1's test on the relevant bits of the
682 * address and checking for aliasing.
683 * This test will find single-bit
684 * address failures such as stuck -high,
685 * stuck-low, and shorted pins. The base
686 * address and size of the region are
687 * selected by the caller.
688 *
689 * Notes: For best results, the selected base
690 * address should have enough LSB 0's to
691 * guarantee single address bit changes.
692 * For example, to test a 64-Kbyte
693 * region, select a base address on a
694 * 64-Kbyte boundary. Also, select the
695 * region size as a power-of-two if at
696 * all possible.
697 *
698 * Returns: 0 if the test succeeds, 1 if the test fails.
699 *
700 * ## NOTE ## Be sure to specify start and end
701 * addresses such that addr_mask has
702 * lots of bits set. For example an
703 * address range of 01000000 02000000 is
704 * bad while a range of 01000000
705 * 01ffffff is perfect.
706 */
707 addr_mask = ((ulong)end - (ulong)start)/sizeof(vu_long);
708 pattern = (vu_long) 0xaaaaaaaa;
709 anti_pattern = (vu_long) 0x55555555;
710
711 PRINTF("%s:%d: addr mask = 0x%.8lx\n",
712 __FUNCTION__, __LINE__,
713 addr_mask);
714 /*
715 * Write the default pattern at each of the
716 * power-of-two offsets.
717 */
718 for (offset = 1; (offset & addr_mask) != 0; offset <<= 1) {
719 start[offset] = pattern;
720 }
721
722 /*
723 * Check for address bits stuck high.
724 */
725 test_offset = 0;
726 start[test_offset] = anti_pattern;
727
728 for (offset = 1; (offset & addr_mask) != 0; offset <<= 1) {
729 temp = start[offset];
730 if (temp != pattern) {
731 printf ("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
732 " expected 0x%.8lx, actual 0x%.8lx\n",
733 (ulong)&start[offset], pattern, temp);
734 return 1;
735 }
736 }
737 start[test_offset] = pattern;
738
739 /*
740 * Check for addr bits stuck low or shorted.
741 */
742 for (test_offset = 1; (test_offset & addr_mask) != 0; test_offset <<= 1) {
743 start[test_offset] = anti_pattern;
744
745 for (offset = 1; (offset & addr_mask) != 0; offset <<= 1) {
746 temp = start[offset];
747 if ((temp != pattern) && (offset != test_offset)) {
748 printf ("\nFAILURE: Address bit stuck low or shorted @"
749 " 0x%.8lx: expected 0x%.8lx, actual 0x%.8lx\n",
750 (ulong)&start[offset], pattern, temp);
751 return 1;
752 }
753 }
754 start[test_offset] = pattern;
755 }
756
757 /*
758 * Description: Test the integrity of a physical
759 * memory device by performing an
760 * increment/decrement test over the
761 * entire region. In the process every
762 * storage bit in the device is tested
763 * as a zero and a one. The base address
764 * and the size of the region are
765 * selected by the caller.
766 *
767 * Returns: 0 if the test succeeds, 1 if the test fails.
768 */
769 num_words = ((ulong)end - (ulong)start)/sizeof(vu_long) + 1;
770
771 /*
772 * Fill memory with a known pattern.
773 */
774 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
775 start[offset] = pattern;
776 }
777
778 /*
779 * Check each location and invert it for the second pass.
780 */
781 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
782 temp = start[offset];
783 if (temp != pattern) {
784 printf ("\nFAILURE (read/write) @ 0x%.8lx:"
785 " expected 0x%.8lx, actual 0x%.8lx)\n",
786 (ulong)&start[offset], pattern, temp);
787 return 1;
788 }
789
790 anti_pattern = ~pattern;
791 start[offset] = anti_pattern;
792 }
793
794 /*
795 * Check each location for the inverted pattern and zero it.
796 */
797 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
798 anti_pattern = ~pattern;
799 temp = start[offset];
800 if (temp != anti_pattern) {
801 printf ("\nFAILURE (read/write): @ 0x%.8lx:"
802 " expected 0x%.8lx, actual 0x%.8lx)\n",
803 (ulong)&start[offset], anti_pattern, temp);
804 return 1;
805 }
806 start[offset] = 0;
807 }
808 }
809
810#else /* The original, quickie test */
811 incr = 1;
812 for (;;) {
813 if (ctrlc()) {
814 putc ('\n');
815 return 1;
816 }
817
818 printf ("\rPattern %08lX Writing..."
819 "%12s"
820 "\b\b\b\b\b\b\b\b\b\b",
821 pattern, "");
822
823 for (addr=start,val=pattern; addr<end; addr++) {
824 *addr = val;
825 val += incr;
826 }
827
828 printf("Reading...");
829
830 for (addr=start,val=pattern; addr<end; addr++) {
831 readback = *addr;
832 if (readback != val) {
833 printf ("\nMem error @ 0x%08X: "
834 "found %08lX, expected %08lX\n",
835 (uint)addr, readback, val);
836 rcode = 1;
837 }
838 val += incr;
839 }
840
841 /*
842 * Flip the pattern each time to make lots of zeros and
843 * then, the next time, lots of ones. We decrement
844 * the "negative" patterns and increment the "positive"
845 * patterns to preserve this feature.
846 */
847 if(pattern & 0x80000000) {
848 pattern = -pattern; /* complement & increment */
849 }
850 else {
851 pattern = ~pattern;
852 }
853 incr = -incr;
854 }
855 return rcode;
856#endif
857}
858
859
860/* Modify memory.
861 *
862 * Syntax:
863 * mm{.b, .w, .l} {addr}
864 * nm{.b, .w, .l} {addr}
865 */
866static int
867mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
868{
wdenk27b207f2003-07-24 23:38:38 +0000869 ulong addr, i;
870 int nbytes, size;
wdenk38635852002-08-27 05:55:31 +0000871 extern char console_buffer[];
872
873 if (argc != 2) {
874 printf ("Usage:\n%s\n", cmdtp->usage);
875 return 1;
876 }
877
878#ifdef CONFIG_BOOT_RETRY_TIME
879 reset_cmd_timeout(); /* got a good command to get here */
880#endif
881 /* We use the last specified parameters, unless new ones are
882 * entered.
883 */
884 addr = mm_last_addr;
885 size = mm_last_size;
886
887 if ((flag & CMD_FLAG_REPEAT) == 0) {
888 /* New command specified. Check for a size specification.
889 * Defaults to long if no or incorrect specification.
890 */
wdenk27b207f2003-07-24 23:38:38 +0000891 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
892 return 1;
wdenk38635852002-08-27 05:55:31 +0000893
894 /* Address is specified since argc > 1
895 */
896 addr = simple_strtoul(argv[1], NULL, 16);
897 addr += base_address;
898 }
899
wdenk2abbe072003-06-16 23:50:08 +0000900#ifdef CONFIG_HAS_DATAFLASH
901 if (addr_dataflash(addr)){
902 printf("Can't modify DataFlash in place. Use cp instead.\n\r");
903 return 0;
904 }
905#endif
906
wdenk38635852002-08-27 05:55:31 +0000907 /* Print the address, followed by value. Then accept input for
908 * the next value. A non-converted value exits.
909 */
910 do {
911 printf("%08lx:", addr);
912 if (size == 4)
913 printf(" %08x", *((uint *)addr));
914 else if (size == 2)
915 printf(" %04x", *((ushort *)addr));
916 else
917 printf(" %02x", *((u_char *)addr));
918
919 nbytes = readline (" ? ");
920 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
921 /* <CR> pressed as only input, don't modify current
922 * location and move to next. "-" pressed will go back.
923 */
924 if (incrflag)
925 addr += nbytes ? -size : size;
926 nbytes = 1;
927#ifdef CONFIG_BOOT_RETRY_TIME
928 reset_cmd_timeout(); /* good enough to not time out */
929#endif
930 }
931#ifdef CONFIG_BOOT_RETRY_TIME
932 else if (nbytes == -2) {
933 break; /* timed out, exit the command */
934 }
935#endif
936 else {
937 char *endp;
938 i = simple_strtoul(console_buffer, &endp, 16);
939 nbytes = endp - console_buffer;
940 if (nbytes) {
941#ifdef CONFIG_BOOT_RETRY_TIME
942 /* good enough to not time out
943 */
944 reset_cmd_timeout();
945#endif
946 if (size == 4)
947 *((uint *)addr) = i;
948 else if (size == 2)
949 *((ushort *)addr) = i;
950 else
951 *((u_char *)addr) = i;
952 if (incrflag)
953 addr += size;
954 }
955 }
956 } while (nbytes);
957
958 mm_last_addr = addr;
959 mm_last_size = size;
960 return 0;
961}
962
963int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
964{
wdenk71f95112003-06-15 22:40:42 +0000965 ulong addr, length;
966 ulong crc;
967 ulong *ptr;
wdenk38635852002-08-27 05:55:31 +0000968
969 if (argc < 3) {
970 printf ("Usage:\n%s\n", cmdtp->usage);
971 return 1;
972 }
973
wdenk71f95112003-06-15 22:40:42 +0000974 addr = simple_strtoul (argv[1], NULL, 16);
wdenk38635852002-08-27 05:55:31 +0000975 addr += base_address;
976
wdenk71f95112003-06-15 22:40:42 +0000977 length = simple_strtoul (argv[2], NULL, 16);
wdenk38635852002-08-27 05:55:31 +0000978
wdenk71f95112003-06-15 22:40:42 +0000979 crc = crc32 (0, (const uchar *) addr, length);
wdenk38635852002-08-27 05:55:31 +0000980
981 printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
wdenk71f95112003-06-15 22:40:42 +0000982 addr, addr + length - 1, crc);
wdenk38635852002-08-27 05:55:31 +0000983
wdenk71f95112003-06-15 22:40:42 +0000984 if (argc > 3) {
985 ptr = (ulong *) simple_strtoul (argv[3], NULL, 16);
986 *ptr = crc;
987 }
wdenk38635852002-08-27 05:55:31 +0000988
989 return 0;
990}
991
wdenk8bde7f72003-06-27 21:31:46 +0000992/**************************************************/
993#if (CONFIG_COMMANDS & CFG_CMD_MEMORY)
wdenk0d498392003-07-01 21:06:45 +0000994U_BOOT_CMD(
995 md, 3, 1, do_mem_md,
wdenk8bde7f72003-06-27 21:31:46 +0000996 "md - memory display\n",
997 "[.b, .w, .l] address [# of objects]\n - memory display\n"
998);
999
1000
wdenk0d498392003-07-01 21:06:45 +00001001U_BOOT_CMD(
1002 mm, 2, 1, do_mem_mm,
wdenk8bde7f72003-06-27 21:31:46 +00001003 "mm - memory modify (auto-incrementing)\n",
1004 "[.b, .w, .l] address\n" " - memory modify, auto increment address\n"
1005);
1006
1007
wdenk0d498392003-07-01 21:06:45 +00001008U_BOOT_CMD(
1009 nm, 2, 1, do_mem_nm,
wdenk8bde7f72003-06-27 21:31:46 +00001010 "nm - memory modify (constant address)\n",
1011 "[.b, .w, .l] address\n - memory modify, read and keep address\n"
1012);
1013
wdenk0d498392003-07-01 21:06:45 +00001014U_BOOT_CMD(
1015 mw, 4, 1, do_mem_mw,
wdenk8bde7f72003-06-27 21:31:46 +00001016 "mw - memory write (fill)\n",
1017 "[.b, .w, .l] address value [count]\n - write memory\n"
1018);
1019
wdenk0d498392003-07-01 21:06:45 +00001020U_BOOT_CMD(
1021 cp, 4, 1, do_mem_cp,
wdenk8bde7f72003-06-27 21:31:46 +00001022 "cp - memory copy\n",
1023 "[.b, .w, .l] source target count\n - copy memory\n"
1024);
1025
wdenk0d498392003-07-01 21:06:45 +00001026U_BOOT_CMD(
1027 cmp, 4, 1, do_mem_cmp,
wdenk8bde7f72003-06-27 21:31:46 +00001028 "cmp - memory compare\n",
1029 "[.b, .w, .l] addr1 addr2 count\n - compare memory\n"
1030);
1031
wdenk0d498392003-07-01 21:06:45 +00001032U_BOOT_CMD(
1033 crc32, 4, 1, do_mem_crc,
wdenk8bde7f72003-06-27 21:31:46 +00001034 "crc32 - checksum calculation\n",
1035 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1036);
1037
wdenk0d498392003-07-01 21:06:45 +00001038U_BOOT_CMD(
1039 base, 2, 1, do_mem_base,
wdenk8bde7f72003-06-27 21:31:46 +00001040 "base - print or set address offset\n",
1041 "\n - print address offset for memory commands\n"
1042 "base off\n - set address offset for memory commands to 'off'\n"
1043);
1044
wdenk0d498392003-07-01 21:06:45 +00001045U_BOOT_CMD(
1046 loop, 3, 1, do_mem_loop,
wdenk8bde7f72003-06-27 21:31:46 +00001047 "loop - infinite loop on address range\n",
1048 "[.b, .w, .l] address number_of_objects\n"
1049 " - loop on a set of addresses\n"
1050);
1051
wdenk0d498392003-07-01 21:06:45 +00001052U_BOOT_CMD(
1053 mtest, 4, 1, do_mem_mtest,
wdenk8bde7f72003-06-27 21:31:46 +00001054 "mtest - simple RAM test\n",
1055 "[start [end [pattern]]]\n"
1056 " - simple RAM read/write test\n"
1057);
1058
1059#endif
wdenk38635852002-08-27 05:55:31 +00001060#endif /* CFG_CMD_MEMORY */