1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2000
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7 /*
8 * Memory Functions
9 *
10 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
11 */
12
13 #include <common.h>
14 #include <console.h>
15 #include <bootretry.h>
16 #include <cli.h>
17 #include <command.h>
18 #include <console.h>
19 #include <hash.h>
20 #include <mapmem.h>
21 #include <watchdog.h>
22 #include <asm/io.h>
23 #include <linux/compiler.h>
24
25 DECLARE_GLOBAL_DATA_PTR;
26
27 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
28 #define CONFIG_SYS_MEMTEST_SCRATCH 0
29 #endif
30
31 static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
32
33 /* Display values from last command.
34 * Memory modify remembered values are different from display memory.
35 */
36 static ulong dp_last_addr, dp_last_size;
37 static ulong dp_last_length = 0x40;
38 static ulong mm_last_addr, mm_last_size;
39
40 static ulong base_address = 0;
41
42 /* Memory Display
43 *
44 * Syntax:
45 * md{.b, .w, .l, .q} {addr} {len}
46 */
47 #define DISP_LINE_LEN 16
do_mem_md(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])48 static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
49 {
50 ulong addr, length, bytes;
51 const void *buf;
52 int size;
53 int rc = 0;
54
55 /* We use the last specified parameters, unless new ones are
56 * entered.
57 */
58 addr = dp_last_addr;
59 size = dp_last_size;
60 length = dp_last_length;
61
62 if (argc < 2)
63 return CMD_RET_USAGE;
64
65 if ((flag & CMD_FLAG_REPEAT) == 0) {
66 /* New command specified. Check for a size specification.
67 * Defaults to long if no or incorrect specification.
68 */
69 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
70 return 1;
71
72 /* Address is specified since argc > 1
73 */
74 addr = simple_strtoul(argv[1], NULL, 16);
75 addr += base_address;
76
77 /* If another parameter, it is the length to display.
78 * Length is the number of objects, not number of bytes.
79 */
80 if (argc > 2)
81 length = simple_strtoul(argv[2], NULL, 16);
82 }
83
84 bytes = size * length;
85 buf = map_sysmem(addr, bytes);
86
87 /* Print the lines. */
88 print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
89 addr += bytes;
90 unmap_sysmem(buf);
91
92 dp_last_addr = addr;
93 dp_last_length = length;
94 dp_last_size = size;
95 return (rc);
96 }
97
do_mem_mm(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])98 static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
99 {
100 return mod_mem (cmdtp, 1, flag, argc, argv);
101 }
do_mem_nm(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])102 static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
103 {
104 return mod_mem (cmdtp, 0, flag, argc, argv);
105 }
106
do_mem_mw(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])107 static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
108 {
109 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
110 u64 writeval;
111 #else
112 ulong writeval;
113 #endif
114 ulong addr, count;
115 int size;
116 void *buf, *start;
117 ulong bytes;
118
119 if ((argc < 3) || (argc > 4))
120 return CMD_RET_USAGE;
121
122 /* Check for size specification.
123 */
124 if ((size = cmd_get_data_size(argv[0], 4)) < 1)
125 return 1;
126
127 /* Address is specified since argc > 1
128 */
129 addr = simple_strtoul(argv[1], NULL, 16);
130 addr += base_address;
131
132 /* Get the value to write.
133 */
134 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
135 writeval = simple_strtoull(argv[2], NULL, 16);
136 #else
137 writeval = simple_strtoul(argv[2], NULL, 16);
138 #endif
139
140 /* Count ? */
141 if (argc == 4) {
142 count = simple_strtoul(argv[3], NULL, 16);
143 } else {
144 count = 1;
145 }
146
147 bytes = size * count;
148 start = map_sysmem(addr, bytes);
149 buf = start;
150 while (count-- > 0) {
151 if (size == 4)
152 *((u32 *)buf) = (u32)writeval;
153 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
154 else if (size == 8)
155 *((u64 *)buf) = (u64)writeval;
156 #endif
157 else if (size == 2)
158 *((u16 *)buf) = (u16)writeval;
159 else
160 *((u8 *)buf) = (u8)writeval;
161 buf += size;
162 }
163 unmap_sysmem(start);
164 return 0;
165 }
166
167 #ifdef CONFIG_MX_CYCLIC
do_mem_mdc(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])168 static int do_mem_mdc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
169 {
170 int i;
171 ulong count;
172
173 if (argc < 4)
174 return CMD_RET_USAGE;
175
176 count = simple_strtoul(argv[3], NULL, 10);
177
178 for (;;) {
179 do_mem_md (NULL, 0, 3, argv);
180
181 /* delay for <count> ms... */
182 for (i=0; i<count; i++)
183 udelay (1000);
184
185 /* check for ctrl-c to abort... */
186 if (ctrlc()) {
187 puts("Abort\n");
188 return 0;
189 }
190 }
191
192 return 0;
193 }
194
do_mem_mwc(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])195 static int do_mem_mwc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
196 {
197 int i;
198 ulong count;
199
200 if (argc < 4)
201 return CMD_RET_USAGE;
202
203 count = simple_strtoul(argv[3], NULL, 10);
204
205 for (;;) {
206 do_mem_mw (NULL, 0, 3, argv);
207
208 /* delay for <count> ms... */
209 for (i=0; i<count; i++)
210 udelay (1000);
211
212 /* check for ctrl-c to abort... */
213 if (ctrlc()) {
214 puts("Abort\n");
215 return 0;
216 }
217 }
218
219 return 0;
220 }
221 #endif /* CONFIG_MX_CYCLIC */
222
do_mem_cmp(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])223 static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
224 {
225 ulong addr1, addr2, count, ngood, bytes;
226 int size;
227 int rcode = 0;
228 const char *type;
229 const void *buf1, *buf2, *base;
230 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
231 u64 word1, word2;
232 #else
233 ulong word1, word2;
234 #endif
235
236 if (argc != 4)
237 return CMD_RET_USAGE;
238
239 /* Check for size specification.
240 */
241 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
242 return 1;
243 type = size == 8 ? "double word" :
244 size == 4 ? "word" :
245 size == 2 ? "halfword" : "byte";
246
247 addr1 = simple_strtoul(argv[1], NULL, 16);
248 addr1 += base_address;
249
250 addr2 = simple_strtoul(argv[2], NULL, 16);
251 addr2 += base_address;
252
253 count = simple_strtoul(argv[3], NULL, 16);
254
255 bytes = size * count;
256 base = buf1 = map_sysmem(addr1, bytes);
257 buf2 = map_sysmem(addr2, bytes);
258 for (ngood = 0; ngood < count; ++ngood) {
259 if (size == 4) {
260 word1 = *(u32 *)buf1;
261 word2 = *(u32 *)buf2;
262 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
263 } else if (size == 8) {
264 word1 = *(u64 *)buf1;
265 word2 = *(u64 *)buf2;
266 #endif
267 } else if (size == 2) {
268 word1 = *(u16 *)buf1;
269 word2 = *(u16 *)buf2;
270 } else {
271 word1 = *(u8 *)buf1;
272 word2 = *(u8 *)buf2;
273 }
274 if (word1 != word2) {
275 ulong offset = buf1 - base;
276 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
277 printf("%s at 0x%p (%#0*llx) != %s at 0x%p (%#0*llx)\n",
278 type, (void *)(addr1 + offset), size, word1,
279 type, (void *)(addr2 + offset), size, word2);
280 #else
281 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
282 type, (ulong)(addr1 + offset), size, word1,
283 type, (ulong)(addr2 + offset), size, word2);
284 #endif
285 rcode = 1;
286 break;
287 }
288
289 buf1 += size;
290 buf2 += size;
291
292 /* reset watchdog from time to time */
293 if ((ngood % (64 << 10)) == 0)
294 WATCHDOG_RESET();
295 }
296 unmap_sysmem(buf1);
297 unmap_sysmem(buf2);
298
299 printf("Total of %ld %s(s) were the same\n", ngood, type);
300 return rcode;
301 }
302
do_mem_cp(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])303 static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
304 {
305 ulong addr, dest, count;
306 void *src, *dst;
307 int size;
308
309 if (argc != 4)
310 return CMD_RET_USAGE;
311
312 /* Check for size specification.
313 */
314 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
315 return 1;
316
317 addr = simple_strtoul(argv[1], NULL, 16);
318 addr += base_address;
319
320 dest = simple_strtoul(argv[2], NULL, 16);
321 dest += base_address;
322
323 count = simple_strtoul(argv[3], NULL, 16);
324
325 if (count == 0) {
326 puts ("Zero length ???\n");
327 return 1;
328 }
329
330 src = map_sysmem(addr, count * size);
331 dst = map_sysmem(dest, count * size);
332
333 #ifdef CONFIG_MTD_NOR_FLASH
334 /* check if we are copying to Flash */
335 if (addr2info((ulong)dst)) {
336 int rc;
337
338 puts ("Copy to Flash... ");
339
340 rc = flash_write((char *)src, (ulong)dst, count * size);
341 if (rc != 0) {
342 flash_perror (rc);
343 unmap_sysmem(src);
344 unmap_sysmem(dst);
345 return (1);
346 }
347 puts ("done\n");
348 unmap_sysmem(src);
349 unmap_sysmem(dst);
350 return 0;
351 }
352 #endif
353
354 memcpy(dst, src, count * size);
355
356 unmap_sysmem(src);
357 unmap_sysmem(dst);
358 return 0;
359 }
360
do_mem_base(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])361 static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
362 char * const argv[])
363 {
364 if (argc > 1) {
365 /* Set new base address.
366 */
367 base_address = simple_strtoul(argv[1], NULL, 16);
368 }
369 /* Print the current base address.
370 */
371 printf("Base Address: 0x%08lx\n", base_address);
372 return 0;
373 }
374
do_mem_loop(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])375 static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
376 char * const argv[])
377 {
378 ulong addr, length, i, bytes;
379 int size;
380 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
381 volatile u64 *llp;
382 #endif
383 volatile u32 *longp;
384 volatile u16 *shortp;
385 volatile u8 *cp;
386 const void *buf;
387
388 if (argc < 3)
389 return CMD_RET_USAGE;
390
391 /*
392 * Check for a size specification.
393 * Defaults to long if no or incorrect specification.
394 */
395 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
396 return 1;
397
398 /* Address is always specified.
399 */
400 addr = simple_strtoul(argv[1], NULL, 16);
401
402 /* Length is the number of objects, not number of bytes.
403 */
404 length = simple_strtoul(argv[2], NULL, 16);
405
406 bytes = size * length;
407 buf = map_sysmem(addr, bytes);
408
409 /* We want to optimize the loops to run as fast as possible.
410 * If we have only one object, just run infinite loops.
411 */
412 if (length == 1) {
413 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
414 if (size == 8) {
415 llp = (u64 *)buf;
416 for (;;)
417 i = *llp;
418 }
419 #endif
420 if (size == 4) {
421 longp = (u32 *)buf;
422 for (;;)
423 i = *longp;
424 }
425 if (size == 2) {
426 shortp = (u16 *)buf;
427 for (;;)
428 i = *shortp;
429 }
430 cp = (u8 *)buf;
431 for (;;)
432 i = *cp;
433 }
434
435 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
436 if (size == 8) {
437 for (;;) {
438 llp = (u64 *)buf;
439 i = length;
440 while (i-- > 0)
441 *llp++;
442 }
443 }
444 #endif
445 if (size == 4) {
446 for (;;) {
447 longp = (u32 *)buf;
448 i = length;
449 while (i-- > 0)
450 *longp++;
451 }
452 }
453 if (size == 2) {
454 for (;;) {
455 shortp = (u16 *)buf;
456 i = length;
457 while (i-- > 0)
458 *shortp++;
459 }
460 }
461 for (;;) {
462 cp = (u8 *)buf;
463 i = length;
464 while (i-- > 0)
465 *cp++;
466 }
467 unmap_sysmem(buf);
468
469 return 0;
470 }
471
472 #ifdef CONFIG_LOOPW
do_mem_loopw(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])473 static int do_mem_loopw(cmd_tbl_t *cmdtp, int flag, int argc,
474 char * const argv[])
475 {
476 ulong addr, length, i, bytes;
477 int size;
478 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
479 volatile u64 *llp;
480 u64 data;
481 #else
482 ulong data;
483 #endif
484 volatile u32 *longp;
485 volatile u16 *shortp;
486 volatile u8 *cp;
487 void *buf;
488
489 if (argc < 4)
490 return CMD_RET_USAGE;
491
492 /*
493 * Check for a size specification.
494 * Defaults to long if no or incorrect specification.
495 */
496 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
497 return 1;
498
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 /* data to write */
508 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
509 data = simple_strtoull(argv[3], NULL, 16);
510 #else
511 data = simple_strtoul(argv[3], NULL, 16);
512 #endif
513
514 bytes = size * length;
515 buf = map_sysmem(addr, bytes);
516
517 /* We want to optimize the loops to run as fast as possible.
518 * If we have only one object, just run infinite loops.
519 */
520 if (length == 1) {
521 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
522 if (size == 8) {
523 llp = (u64 *)buf;
524 for (;;)
525 *llp = data;
526 }
527 #endif
528 if (size == 4) {
529 longp = (u32 *)buf;
530 for (;;)
531 *longp = data;
532 }
533 if (size == 2) {
534 shortp = (u16 *)buf;
535 for (;;)
536 *shortp = data;
537 }
538 cp = (u8 *)buf;
539 for (;;)
540 *cp = data;
541 }
542
543 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
544 if (size == 8) {
545 for (;;) {
546 llp = (u64 *)buf;
547 i = length;
548 while (i-- > 0)
549 *llp++ = data;
550 }
551 }
552 #endif
553 if (size == 4) {
554 for (;;) {
555 longp = (u32 *)buf;
556 i = length;
557 while (i-- > 0)
558 *longp++ = data;
559 }
560 }
561 if (size == 2) {
562 for (;;) {
563 shortp = (u16 *)buf;
564 i = length;
565 while (i-- > 0)
566 *shortp++ = data;
567 }
568 }
569 for (;;) {
570 cp = (u8 *)buf;
571 i = length;
572 while (i-- > 0)
573 *cp++ = data;
574 }
575 }
576 #endif /* CONFIG_LOOPW */
577
578 #ifdef CONFIG_CMD_MEMTEST
mem_test_alt(vu_long * buf,ulong start_addr,ulong end_addr,vu_long * dummy)579 static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr,
580 vu_long *dummy)
581 {
582 vu_long *addr;
583 ulong errs = 0;
584 ulong val, readback;
585 int j;
586 vu_long offset;
587 vu_long test_offset;
588 vu_long pattern;
589 vu_long temp;
590 vu_long anti_pattern;
591 vu_long num_words;
592 static const ulong bitpattern[] = {
593 0x00000001, /* single bit */
594 0x00000003, /* two adjacent bits */
595 0x00000007, /* three adjacent bits */
596 0x0000000F, /* four adjacent bits */
597 0x00000005, /* two non-adjacent bits */
598 0x00000015, /* three non-adjacent bits */
599 0x00000055, /* four non-adjacent bits */
600 0xaaaaaaaa, /* alternating 1/0 */
601 };
602
603 num_words = (end_addr - start_addr) / sizeof(vu_long);
604
605 /*
606 * Data line test: write a pattern to the first
607 * location, write the 1's complement to a 'parking'
608 * address (changes the state of the data bus so a
609 * floating bus doesn't give a false OK), and then
610 * read the value back. Note that we read it back
611 * into a variable because the next time we read it,
612 * it might be right (been there, tough to explain to
613 * the quality guys why it prints a failure when the
614 * "is" and "should be" are obviously the same in the
615 * error message).
616 *
617 * Rather than exhaustively testing, we test some
618 * patterns by shifting '1' bits through a field of
619 * '0's and '0' bits through a field of '1's (i.e.
620 * pattern and ~pattern).
621 */
622 addr = buf;
623 for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) {
624 val = bitpattern[j];
625 for (; val != 0; val <<= 1) {
626 *addr = val;
627 *dummy = ~val; /* clear the test data off the bus */
628 readback = *addr;
629 if (readback != val) {
630 printf("FAILURE (data line): "
631 "expected %08lx, actual %08lx\n",
632 val, readback);
633 errs++;
634 if (ctrlc())
635 return -1;
636 }
637 *addr = ~val;
638 *dummy = val;
639 readback = *addr;
640 if (readback != ~val) {
641 printf("FAILURE (data line): "
642 "Is %08lx, should be %08lx\n",
643 readback, ~val);
644 errs++;
645 if (ctrlc())
646 return -1;
647 }
648 }
649 }
650
651 /*
652 * Based on code whose Original Author and Copyright
653 * information follows: Copyright (c) 1998 by Michael
654 * Barr. This software is placed into the public
655 * domain and may be used for any purpose. However,
656 * this notice must not be changed or removed and no
657 * warranty is either expressed or implied by its
658 * publication or distribution.
659 */
660
661 /*
662 * Address line test
663
664 * Description: Test the address bus wiring in a
665 * memory region by performing a walking
666 * 1's test on the relevant bits of the
667 * address and checking for aliasing.
668 * This test will find single-bit
669 * address failures such as stuck-high,
670 * stuck-low, and shorted pins. The base
671 * address and size of the region are
672 * selected by the caller.
673
674 * Notes: For best results, the selected base
675 * address should have enough LSB 0's to
676 * guarantee single address bit changes.
677 * For example, to test a 64-Kbyte
678 * region, select a base address on a
679 * 64-Kbyte boundary. Also, select the
680 * region size as a power-of-two if at
681 * all possible.
682 *
683 * Returns: 0 if the test succeeds, 1 if the test fails.
684 */
685 pattern = (vu_long) 0xaaaaaaaa;
686 anti_pattern = (vu_long) 0x55555555;
687
688 debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words);
689 /*
690 * Write the default pattern at each of the
691 * power-of-two offsets.
692 */
693 for (offset = 1; offset < num_words; offset <<= 1)
694 addr[offset] = pattern;
695
696 /*
697 * Check for address bits stuck high.
698 */
699 test_offset = 0;
700 addr[test_offset] = anti_pattern;
701
702 for (offset = 1; offset < num_words; offset <<= 1) {
703 temp = addr[offset];
704 if (temp != pattern) {
705 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
706 " expected 0x%.8lx, actual 0x%.8lx\n",
707 start_addr + offset*sizeof(vu_long),
708 pattern, temp);
709 errs++;
710 if (ctrlc())
711 return -1;
712 }
713 }
714 addr[test_offset] = pattern;
715 WATCHDOG_RESET();
716
717 /*
718 * Check for addr bits stuck low or shorted.
719 */
720 for (test_offset = 1; test_offset < num_words; test_offset <<= 1) {
721 addr[test_offset] = anti_pattern;
722
723 for (offset = 1; offset < num_words; offset <<= 1) {
724 temp = addr[offset];
725 if ((temp != pattern) && (offset != test_offset)) {
726 printf("\nFAILURE: Address bit stuck low or"
727 " shorted @ 0x%.8lx: expected 0x%.8lx,"
728 " actual 0x%.8lx\n",
729 start_addr + offset*sizeof(vu_long),
730 pattern, temp);
731 errs++;
732 if (ctrlc())
733 return -1;
734 }
735 }
736 addr[test_offset] = pattern;
737 }
738
739 /*
740 * Description: Test the integrity of a physical
741 * memory device by performing an
742 * increment/decrement test over the
743 * entire region. In the process every
744 * storage bit in the device is tested
745 * as a zero and a one. The base address
746 * and the size of the region are
747 * selected by the caller.
748 *
749 * Returns: 0 if the test succeeds, 1 if the test fails.
750 */
751 num_words++;
752
753 /*
754 * Fill memory with a known pattern.
755 */
756 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
757 WATCHDOG_RESET();
758 addr[offset] = pattern;
759 }
760
761 /*
762 * Check each location and invert it for the second pass.
763 */
764 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
765 WATCHDOG_RESET();
766 temp = addr[offset];
767 if (temp != pattern) {
768 printf("\nFAILURE (read/write) @ 0x%.8lx:"
769 " expected 0x%.8lx, actual 0x%.8lx)\n",
770 start_addr + offset*sizeof(vu_long),
771 pattern, temp);
772 errs++;
773 if (ctrlc())
774 return -1;
775 }
776
777 anti_pattern = ~pattern;
778 addr[offset] = anti_pattern;
779 }
780
781 /*
782 * Check each location for the inverted pattern and zero it.
783 */
784 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
785 WATCHDOG_RESET();
786 anti_pattern = ~pattern;
787 temp = addr[offset];
788 if (temp != anti_pattern) {
789 printf("\nFAILURE (read/write): @ 0x%.8lx:"
790 " expected 0x%.8lx, actual 0x%.8lx)\n",
791 start_addr + offset*sizeof(vu_long),
792 anti_pattern, temp);
793 errs++;
794 if (ctrlc())
795 return -1;
796 }
797 addr[offset] = 0;
798 }
799
800 return errs;
801 }
802
mem_test_quick(vu_long * buf,ulong start_addr,ulong end_addr,vu_long pattern,int iteration)803 static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr,
804 vu_long pattern, int iteration)
805 {
806 vu_long *end;
807 vu_long *addr;
808 ulong errs = 0;
809 ulong incr, length;
810 ulong val, readback;
811
812 /* Alternate the pattern */
813 incr = 1;
814 if (iteration & 1) {
815 incr = -incr;
816 /*
817 * Flip the pattern each time to make lots of zeros and
818 * then, the next time, lots of ones. We decrement
819 * the "negative" patterns and increment the "positive"
820 * patterns to preserve this feature.
821 */
822 if (pattern & 0x80000000)
823 pattern = -pattern; /* complement & increment */
824 else
825 pattern = ~pattern;
826 }
827 length = (end_addr - start_addr) / sizeof(ulong);
828 end = buf + length;
829 printf("\rPattern %08lX Writing..."
830 "%12s"
831 "\b\b\b\b\b\b\b\b\b\b",
832 pattern, "");
833
834 for (addr = buf, val = pattern; addr < end; addr++) {
835 WATCHDOG_RESET();
836 *addr = val;
837 val += incr;
838 }
839
840 puts("Reading...");
841
842 for (addr = buf, val = pattern; addr < end; addr++) {
843 WATCHDOG_RESET();
844 readback = *addr;
845 if (readback != val) {
846 ulong offset = addr - buf;
847
848 printf("\nMem error @ 0x%08X: "
849 "found %08lX, expected %08lX\n",
850 (uint)(uintptr_t)(start_addr + offset*sizeof(vu_long)),
851 readback, val);
852 errs++;
853 if (ctrlc())
854 return -1;
855 }
856 val += incr;
857 }
858
859 return errs;
860 }
861
862 /*
863 * Perform a memory test. A more complete alternative test can be
864 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
865 * interrupted by ctrl-c or by a failure of one of the sub-tests.
866 */
do_mem_mtest(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])867 static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
868 char * const argv[])
869 {
870 ulong start, end;
871 vu_long *buf, *dummy;
872 ulong iteration_limit = 0;
873 int ret;
874 ulong errs = 0; /* number of errors, or -1 if interrupted */
875 ulong pattern = 0;
876 int iteration;
877 #if defined(CONFIG_SYS_ALT_MEMTEST)
878 const int alt_test = 1;
879 #else
880 const int alt_test = 0;
881 #endif
882
883 start = CONFIG_SYS_MEMTEST_START;
884 end = CONFIG_SYS_MEMTEST_END;
885
886 if (argc > 1)
887 if (strict_strtoul(argv[1], 16, &start) < 0)
888 return CMD_RET_USAGE;
889
890 if (argc > 2)
891 if (strict_strtoul(argv[2], 16, &end) < 0)
892 return CMD_RET_USAGE;
893
894 if (argc > 3)
895 if (strict_strtoul(argv[3], 16, &pattern) < 0)
896 return CMD_RET_USAGE;
897
898 if (argc > 4)
899 if (strict_strtoul(argv[4], 16, &iteration_limit) < 0)
900 return CMD_RET_USAGE;
901
902 if (end < start) {
903 printf("Refusing to do empty test\n");
904 return -1;
905 }
906
907 printf("Testing %08lx ... %08lx:\n", start, end);
908 debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
909 start, end);
910
911 buf = map_sysmem(start, end - start);
912 dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long));
913 for (iteration = 0;
914 !iteration_limit || iteration < iteration_limit;
915 iteration++) {
916 if (ctrlc()) {
917 errs = -1UL;
918 break;
919 }
920
921 printf("Iteration: %6d\r", iteration + 1);
922 debug("\n");
923 if (alt_test) {
924 errs = mem_test_alt(buf, start, end, dummy);
925 } else {
926 errs = mem_test_quick(buf, start, end, pattern,
927 iteration);
928 }
929 if (errs == -1UL)
930 break;
931 }
932
933 /*
934 * Work-around for eldk-4.2 which gives this warning if we try to
935 * case in the unmap_sysmem() call:
936 * warning: initialization discards qualifiers from pointer target type
937 */
938 {
939 void *vbuf = (void *)buf;
940 void *vdummy = (void *)dummy;
941
942 unmap_sysmem(vbuf);
943 unmap_sysmem(vdummy);
944 }
945
946 if (errs == -1UL) {
947 /* Memory test was aborted - write a newline to finish off */
948 putc('\n');
949 ret = 1;
950 } else {
951 printf("Tested %d iteration(s) with %lu errors.\n",
952 iteration, errs);
953 ret = errs != 0;
954 }
955
956 return ret;
957 }
958 #endif /* CONFIG_CMD_MEMTEST */
959
960 /* Modify memory.
961 *
962 * Syntax:
963 * mm{.b, .w, .l, .q} {addr}
964 * nm{.b, .w, .l, .q} {addr}
965 */
966 static int
mod_mem(cmd_tbl_t * cmdtp,int incrflag,int flag,int argc,char * const argv[])967 mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
968 {
969 ulong addr;
970 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
971 u64 i;
972 #else
973 ulong i;
974 #endif
975 int nbytes, size;
976 void *ptr = NULL;
977
978 if (argc != 2)
979 return CMD_RET_USAGE;
980
981 bootretry_reset_cmd_timeout(); /* got a good command to get here */
982 /* We use the last specified parameters, unless new ones are
983 * entered.
984 */
985 addr = mm_last_addr;
986 size = mm_last_size;
987
988 if ((flag & CMD_FLAG_REPEAT) == 0) {
989 /* New command specified. Check for a size specification.
990 * Defaults to long if no or incorrect specification.
991 */
992 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
993 return 1;
994
995 /* Address is specified since argc > 1
996 */
997 addr = simple_strtoul(argv[1], NULL, 16);
998 addr += base_address;
999 }
1000
1001 /* Print the address, followed by value. Then accept input for
1002 * the next value. A non-converted value exits.
1003 */
1004 do {
1005 ptr = map_sysmem(addr, size);
1006 printf("%08lx:", addr);
1007 if (size == 4)
1008 printf(" %08x", *((u32 *)ptr));
1009 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1010 else if (size == 8)
1011 printf(" %016llx", *((u64 *)ptr));
1012 #endif
1013 else if (size == 2)
1014 printf(" %04x", *((u16 *)ptr));
1015 else
1016 printf(" %02x", *((u8 *)ptr));
1017
1018 nbytes = cli_readline(" ? ");
1019 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
1020 /* <CR> pressed as only input, don't modify current
1021 * location and move to next. "-" pressed will go back.
1022 */
1023 if (incrflag)
1024 addr += nbytes ? -size : size;
1025 nbytes = 1;
1026 /* good enough to not time out */
1027 bootretry_reset_cmd_timeout();
1028 }
1029 #ifdef CONFIG_BOOT_RETRY_TIME
1030 else if (nbytes == -2) {
1031 break; /* timed out, exit the command */
1032 }
1033 #endif
1034 else {
1035 char *endp;
1036 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1037 i = simple_strtoull(console_buffer, &endp, 16);
1038 #else
1039 i = simple_strtoul(console_buffer, &endp, 16);
1040 #endif
1041 nbytes = endp - console_buffer;
1042 if (nbytes) {
1043 /* good enough to not time out
1044 */
1045 bootretry_reset_cmd_timeout();
1046 if (size == 4)
1047 *((u32 *)ptr) = i;
1048 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1049 else if (size == 8)
1050 *((u64 *)ptr) = i;
1051 #endif
1052 else if (size == 2)
1053 *((u16 *)ptr) = i;
1054 else
1055 *((u8 *)ptr) = i;
1056 if (incrflag)
1057 addr += size;
1058 }
1059 }
1060 } while (nbytes);
1061 if (ptr)
1062 unmap_sysmem(ptr);
1063
1064 mm_last_addr = addr;
1065 mm_last_size = size;
1066 return 0;
1067 }
1068
1069 #ifdef CONFIG_CMD_CRC32
1070
do_mem_crc(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])1071 static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1072 {
1073 int flags = 0;
1074 int ac;
1075 char * const *av;
1076
1077 if (argc < 3)
1078 return CMD_RET_USAGE;
1079
1080 av = argv + 1;
1081 ac = argc - 1;
1082 #ifdef CONFIG_CRC32_VERIFY
1083 if (strcmp(*av, "-v") == 0) {
1084 flags |= HASH_FLAG_VERIFY | HASH_FLAG_ENV;
1085 av++;
1086 ac--;
1087 }
1088 #endif
1089
1090 return hash_command("crc32", flags, cmdtp, flag, ac, av);
1091 }
1092
1093 #endif
1094
1095 #ifdef CONFIG_CMD_RANDOM
do_random(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])1096 static int do_random(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1097 {
1098 unsigned long addr, len;
1099 unsigned long seed; // NOT INITIALIZED ON PURPOSE
1100 unsigned int *buf, *start;
1101 unsigned char *buf8;
1102 unsigned int i;
1103
1104 if (argc < 3 || argc > 4) {
1105 printf("usage: %s <addr> <len> [<seed>]\n", argv[0]);
1106 return 0;
1107 }
1108
1109 len = simple_strtoul(argv[2], NULL, 16);
1110 addr = simple_strtoul(argv[1], NULL, 16);
1111
1112 if (argc == 4) {
1113 seed = simple_strtoul(argv[3], NULL, 16);
1114 if (seed == 0) {
1115 printf("The seed cannot be 0. Using 0xDEADBEEF.\n");
1116 seed = 0xDEADBEEF;
1117 }
1118 } else {
1119 seed = get_timer(0) ^ rand();
1120 }
1121
1122 srand(seed);
1123 start = map_sysmem(addr, len);
1124 buf = start;
1125 for (i = 0; i < (len / 4); i++)
1126 *buf++ = rand();
1127
1128 buf8 = (unsigned char *)buf;
1129 for (i = 0; i < (len % 4); i++)
1130 *buf8++ = rand() & 0xFF;
1131
1132 unmap_sysmem(start);
1133 printf("%lu bytes filled with random data\n", len);
1134 return 1;
1135 }
1136 #endif
1137
1138 /**************************************************/
1139 U_BOOT_CMD(
1140 md, 3, 1, do_mem_md,
1141 "memory display",
1142 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1143 "[.b, .w, .l, .q] address [# of objects]"
1144 #else
1145 "[.b, .w, .l] address [# of objects]"
1146 #endif
1147 );
1148
1149
1150 U_BOOT_CMD(
1151 mm, 2, 1, do_mem_mm,
1152 "memory modify (auto-incrementing address)",
1153 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1154 "[.b, .w, .l, .q] address"
1155 #else
1156 "[.b, .w, .l] address"
1157 #endif
1158 );
1159
1160
1161 U_BOOT_CMD(
1162 nm, 2, 1, do_mem_nm,
1163 "memory modify (constant address)",
1164 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1165 "[.b, .w, .l, .q] address"
1166 #else
1167 "[.b, .w, .l] address"
1168 #endif
1169 );
1170
1171 U_BOOT_CMD(
1172 mw, 4, 1, do_mem_mw,
1173 "memory write (fill)",
1174 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1175 "[.b, .w, .l, .q] address value [count]"
1176 #else
1177 "[.b, .w, .l] address value [count]"
1178 #endif
1179 );
1180
1181 U_BOOT_CMD(
1182 cp, 4, 1, do_mem_cp,
1183 "memory copy",
1184 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1185 "[.b, .w, .l, .q] source target count"
1186 #else
1187 "[.b, .w, .l] source target count"
1188 #endif
1189 );
1190
1191 U_BOOT_CMD(
1192 cmp, 4, 1, do_mem_cmp,
1193 "memory compare",
1194 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1195 "[.b, .w, .l, .q] addr1 addr2 count"
1196 #else
1197 "[.b, .w, .l] addr1 addr2 count"
1198 #endif
1199 );
1200
1201 #ifdef CONFIG_CMD_CRC32
1202
1203 #ifndef CONFIG_CRC32_VERIFY
1204
1205 U_BOOT_CMD(
1206 crc32, 4, 1, do_mem_crc,
1207 "checksum calculation",
1208 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1209 );
1210
1211 #else /* CONFIG_CRC32_VERIFY */
1212
1213 U_BOOT_CMD(
1214 crc32, 5, 1, do_mem_crc,
1215 "checksum calculation",
1216 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1217 "-v address count crc\n - verify crc of memory area"
1218 );
1219
1220 #endif /* CONFIG_CRC32_VERIFY */
1221
1222 #endif
1223
1224 #ifdef CONFIG_CMD_MEMINFO
do_mem_info(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])1225 static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
1226 char * const argv[])
1227 {
1228 puts("DRAM: ");
1229 print_size(gd->ram_size, "\n");
1230
1231 return 0;
1232 }
1233 #endif
1234
1235 U_BOOT_CMD(
1236 base, 2, 1, do_mem_base,
1237 "print or set address offset",
1238 "\n - print address offset for memory commands\n"
1239 "base off\n - set address offset for memory commands to 'off'"
1240 );
1241
1242 U_BOOT_CMD(
1243 loop, 3, 1, do_mem_loop,
1244 "infinite loop on address range",
1245 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1246 "[.b, .w, .l, .q] address number_of_objects"
1247 #else
1248 "[.b, .w, .l] address number_of_objects"
1249 #endif
1250 );
1251
1252 #ifdef CONFIG_LOOPW
1253 U_BOOT_CMD(
1254 loopw, 4, 1, do_mem_loopw,
1255 "infinite write loop on address range",
1256 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1257 "[.b, .w, .l, .q] address number_of_objects data_to_write"
1258 #else
1259 "[.b, .w, .l] address number_of_objects data_to_write"
1260 #endif
1261 );
1262 #endif /* CONFIG_LOOPW */
1263
1264 #ifdef CONFIG_CMD_MEMTEST
1265 U_BOOT_CMD(
1266 mtest, 5, 1, do_mem_mtest,
1267 "simple RAM read/write test",
1268 "[start [end [pattern [iterations]]]]"
1269 );
1270 #endif /* CONFIG_CMD_MEMTEST */
1271
1272 #ifdef CONFIG_MX_CYCLIC
1273 U_BOOT_CMD(
1274 mdc, 4, 1, do_mem_mdc,
1275 "memory display cyclic",
1276 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1277 "[.b, .w, .l, .q] address count delay(ms)"
1278 #else
1279 "[.b, .w, .l] address count delay(ms)"
1280 #endif
1281 );
1282
1283 U_BOOT_CMD(
1284 mwc, 4, 1, do_mem_mwc,
1285 "memory write cyclic",
1286 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1287 "[.b, .w, .l, .q] address value delay(ms)"
1288 #else
1289 "[.b, .w, .l] address value delay(ms)"
1290 #endif
1291 );
1292 #endif /* CONFIG_MX_CYCLIC */
1293
1294 #ifdef CONFIG_CMD_MEMINFO
1295 U_BOOT_CMD(
1296 meminfo, 3, 1, do_mem_info,
1297 "display memory information",
1298 ""
1299 );
1300 #endif
1301
1302 #ifdef CONFIG_CMD_RANDOM
1303 U_BOOT_CMD(
1304 random, 4, 0, do_random,
1305 "fill memory with random pattern",
1306 "<addr> <len> [<seed>]\n"
1307 " - Fill 'len' bytes of memory starting at 'addr' with random data\n"
1308 );
1309 #endif
1310