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1 /*
2 * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
3 *
4 * (C) Copyright 2000
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 *
7 * SPDX-License-Identifier: GPL-2.0
8 */
9
10 /*
11 * Memory Functions
12 *
13 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
14 */
15
16 #include "common.h"
17 #include <ctype.h>
18 #include <avr/interrupt.h>
19
20 #include "command.h"
21 #include "cli_readline.h"
22 #include "print-utils.h"
23 #include "con-utils.h"
24 #include "getopt-min.h"
25 #include "eval_arg.h"
26 #include "timer.h"
27 #include "z80-if.h"
28 #include "debug.h"
29
30
31 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
32 #define CONFIG_SYS_MEMTEST_SCRATCH 0
33 #endif
34
35 /* Display values from last command.
36 * Memory modify remembered values are different from display memory.
37 */
38 static uint32_t dp_last_addr;
39 static uint32_t dp_last_length = 0x100;
40 static uint32_t mm_last_addr;
41
42 static uint32_t base_address = 0;
43
44 /*--------------------------------------------------------------------------*/
45
46 int z180_read_buf(uint8_t *buf, uint32_t addr, uint8_t count)
47 {
48 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED))
49 return -1;
50
51 z80_read_block (buf, addr, count);
52 z80_bus_cmd(Release);
53 return 0;
54 }
55
56 /*--------------------------------------------------------------------------*/
57
58 /* Memory Display
59 *
60 * Syntax:
61 * md {addr} {len}
62 */
63 command_ret_t do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
64 {
65 uint32_t addr, length;
66
67 (void) cmdtp;
68
69 #if 0
70 printf_P(PSTR("flag: %d, argc: %d"), flag, argc);
71 for (int i = 0; i < argc; i++) {
72 printf_P(PSTR(", argv[%d]: %s"), i, argv[i] ? argv[i] : "<NULL>");
73 }
74 putchar('\n');
75 #endif
76
77 /* We use the last specified parameters, unless new ones are
78 * entered.
79 */
80 addr = dp_last_addr;
81 length = dp_last_length;
82
83 if (argc < 2)
84 return CMD_RET_USAGE;
85
86 if ((flag & CMD_FLAG_REPEAT) == 0) {
87 /* Address is specified since argc > 1 */
88 addr = eval_arg(argv[1], NULL);
89 addr += base_address;
90
91 /* If another parameter, it is the length to display. */
92 if (argc > 2)
93 length = eval_arg(argv[2], NULL);
94 }
95
96 /* Print the lines. */
97 int ret = dump_mem(addr, addr, length, z180_read_buf, NULL);
98 if (ret == -2) { /* TODO: Error codes */
99 my_puts_P(PSTR("Bus timeout\n"));
100 return CMD_RET_FAILURE;
101 }
102
103 if (ret >= 0) {
104 dp_last_addr = addr + length;
105 dp_last_length = length;
106 }
107 return CMD_RET_SUCCESS;
108 }
109
110 /* Modify memory.
111 *
112 * Syntax:
113 * mm {addr}
114 * nm {addr}
115 */
116 static command_ret_t
117 mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
118 {
119 uint32_t addr;
120 uint8_t data;
121 int nbytes;
122
123 (void) cmdtp;
124
125 if (argc != 2)
126 return CMD_RET_USAGE;
127
128 /* We use the last specified parameters, unless new ones are
129 * entered.
130 */
131 addr = mm_last_addr;
132
133 if ((flag & CMD_FLAG_REPEAT) == 0) {
134 /* New command specified.
135 */
136
137 /* Address is specified since argc > 1
138 */
139 addr = eval_arg(argv[1], NULL);
140 addr += base_address;
141 }
142
143 /* Print the address, followed by value. Then accept input for
144 * the next value. A non-converted value exits.
145 */
146 do {
147 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
148 my_puts_P(PSTR("Bus timeout\n"));
149 return CMD_RET_FAILURE;
150 }
151 data = z80_read(addr);
152 z80_bus_cmd(Release);
153 printf_P(PSTR("%05lx: %02x"), addr, data);
154
155 nbytes = cli_readline(PSTR(" ? "), 0);
156 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
157 /* <CR> pressed as only input, don't modify current
158 * location and move to next. "-" pressed will go back.
159 */
160 if (incrflag)
161 addr += nbytes ? -1 : 1;
162 nbytes = 1;
163
164 } else {
165 char *endp;
166 data = eval_arg(console_buffer, &endp);
167 nbytes = endp - console_buffer;
168 if (nbytes) {
169 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
170 my_puts_P(PSTR("Bus timeout\n"));
171 return CMD_RET_FAILURE;
172 }
173 z80_write(addr, data);
174 z80_bus_cmd(Release);
175 if (incrflag)
176 addr++;
177 }
178 }
179 } while (nbytes > 0);
180
181 mm_last_addr = addr;
182 return CMD_RET_SUCCESS;
183 }
184
185
186 command_ret_t do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
187 {
188 return mod_mem (cmdtp, 1, flag, argc, argv);
189 }
190 command_ret_t do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
191 {
192 return mod_mem (cmdtp, 0, flag, argc, argv);
193 }
194
195 command_ret_t do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
196 {
197 uint32_t writeval;
198 uint32_t addr;
199 uint32_t count = 1;
200 uint_fast8_t width = 1;
201
202 (void) cmdtp; (void) flag;
203
204 /* reset getopt() */
205 optind = 0;
206
207 int opt;
208 while ((opt = getopt(argc, argv, PSTR("bwl"))) != -1) {
209 switch (opt) {
210 case 'b':
211 width = 1;
212 break;
213 case 'w':
214 width = 2;
215 break;
216 case 'l':
217 width = 4;
218 break;
219 default: /* '?' */
220 return CMD_RET_USAGE;
221 }
222 }
223
224 /* remaining arguments */
225 argc -= optind;
226 if ((argc < 2) || (argc > 3))
227 return CMD_RET_USAGE;
228
229 /* Address and value are specified since (adjusted) argc >= 2 */
230 addr = eval_arg(argv[optind++], NULL);
231 addr += base_address;
232 writeval = eval_arg(argv[optind++], NULL);
233
234 /* Count ? */
235 if (argc == 3)
236 count = eval_arg(argv[optind], NULL);
237
238 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
239 my_puts_P(PSTR("Bus timeout\n"));
240 return CMD_RET_FAILURE;
241 }
242
243 if (width == 1)
244 z80_memset(addr, writeval, count);
245 else {
246 while (count--) {
247 z80_write_block((const uint8_t *) &writeval, addr, width);
248 addr += width;
249 }
250 }
251 z80_bus_cmd(Release);
252
253 return CMD_RET_SUCCESS;
254 }
255
256 #ifdef CONFIG_MX_CYCLIC
257 command_ret_t do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
258 {
259 uint32_t count;
260 uint32_t ts;
261
262 (void) cmdtp;
263 (void) flag;
264
265 optind = 0;
266 if (argv[0][1] != 'd') {
267 int opt;
268 while ((opt = getopt(argc, argv, PSTR("bwl"))) != -1)
269 if (opt == '?')
270 return CMD_RET_USAGE;
271 --optind;
272 }
273
274 printf_P(PSTR("# argc: %d, optind: %d, argv[optind+3]: '%s'\n"),
275 argc, optind, argv[optind+3]);
276
277 if (argc-optind != 4)
278 return CMD_RET_USAGE;
279
280 count = eval_arg(argv[optind + 3], NULL);
281
282 clear_ctrlc(); /* forget any previous Control C */
283 for (;;) {
284
285 if (argv[0][1] == 'd')
286 do_mem_md (NULL, 0, argc-1, argv); /* memory display */
287 else
288 do_mem_mw (NULL, 0, argc-1, argv); /* memory write */
289
290
291 /* delay for <count> ms... */
292 ts = get_timer(0);
293 do {
294 /* check for ctrl-c to abort... */
295 if (had_ctrlc() || ctrlc()) {
296 my_puts_P(PSTR("Abort\n"));
297 return CMD_RET_SUCCESS;
298 }
299 } while (get_timer(ts) < count);
300 }
301
302 return CMD_RET_SUCCESS;
303 }
304 #endif /* CONFIG_MX_CYCLIC */
305
306 command_ret_t do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
307 {
308 uint32_t addr1, addr2, count, ngood;
309 command_ret_t rcode = CMD_RET_SUCCESS;
310 uint8_t byte1, byte2;
311
312 (void) cmdtp;
313 (void) flag;
314
315 if (argc != 4)
316 return CMD_RET_USAGE;
317
318
319 addr1 = eval_arg(argv[1], NULL);
320 addr1 += base_address;
321 addr2 = eval_arg(argv[2], NULL);
322 addr2 += base_address;
323 count = eval_arg(argv[3], NULL);
324
325 for (ngood = 0; ngood < count; ++ngood) {
326 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
327 my_puts_P(PSTR("Bus timeout\n"));
328 rcode = CMD_RET_FAILURE;
329 break;
330 }
331 byte1 = z80_read(addr1);
332 byte2 = z80_read(addr2);
333 z80_bus_cmd(Release);
334 if (byte1 != byte2) {
335 printf_P(PSTR("byte at 0x%05lx (%#02x) != "
336 "byte at 0x%05lx (%#02x)\n"),
337 addr1, byte1, addr2, byte2);
338 rcode = CMD_RET_FAILURE;
339 break;
340 }
341 addr1++;
342 addr2++;
343
344 /* check for ctrl-c to abort... */
345 if (ctrlc()) {
346 my_puts_P(PSTR("Abort\n"));
347 return CMD_RET_SUCCESS;
348 }
349 }
350
351 printf_P(PSTR("Total of %ld byte(s) (0x%lx) were the same\n"), ngood, ngood);
352 return rcode;
353 }
354
355 command_ret_t do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
356 {
357 uint32_t src, dest, count;
358 int_fast8_t step;
359
360 (void) cmdtp;
361 (void) flag;
362
363 if (argc != 4)
364 return CMD_RET_USAGE;
365
366 src = eval_arg(argv[1], NULL);
367 src += base_address;
368 dest = eval_arg(argv[2], NULL);
369 dest += base_address;
370 count = eval_arg(argv[3], NULL);
371
372 if (count == 0) {
373 my_puts_P(PSTR("Zero length?\n"));
374 return CMD_RET_FAILURE;
375 }
376
377 if (dest > src) {
378 src += count - 1;
379 dest += count - 1;
380 step = -1;
381 } else
382 step = 1;
383
384 while (count-- > 0) {
385 uint8_t data;
386 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
387 my_puts_P(PSTR("Bus timeout\n"));
388 return CMD_RET_FAILURE;
389 }
390 data = z80_read(src);
391 z80_write(dest, data);
392 z80_bus_cmd(Release);
393 src += step;
394 dest += step;
395
396 /* check for ctrl-c to abort... */
397 if (ctrlc()) {
398 my_puts_P(PSTR("Abort\n"));
399 return CMD_RET_SUCCESS;
400 }
401 }
402 return CMD_RET_SUCCESS;
403 }
404
405 command_ret_t do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
406 char * const argv[])
407 {
408 (void) cmdtp;
409 (void) flag;
410
411 if (argc > 1) {
412 /* Set new base address. */
413 base_address = eval_arg(argv[1], NULL);
414 }
415 /* Print the current base address. */
416 printf_P(PSTR("Base Address: 0x%05lx\n"), base_address);
417 return CMD_RET_SUCCESS;
418 }
419
420 command_ret_t do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
421 char * const argv[])
422 {
423 uint32_t addr, length;
424
425 (void) cmdtp;
426 (void) flag;
427
428 if (argc < 3)
429 return CMD_RET_USAGE;
430
431 /* Address is always specified. */
432 addr = eval_arg(argv[1], NULL);
433
434 /* Length is the number of bytes. */
435 length = eval_arg(argv[2], NULL);
436
437
438 /* We want to optimize the loops to run as fast as possible.
439 * If we have only one object, just run infinite loops.
440 */
441 if (length == 1) {
442 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
443 my_puts_P(PSTR("Bus timeout\n"));
444 return CMD_RET_FAILURE;
445 }
446 cli();
447 for (;;)
448 z80_read(addr);
449 }
450
451 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
452 my_puts_P(PSTR("Bus timeout\n"));
453 return CMD_RET_FAILURE;
454 }
455 cli();
456 for (;;) {
457 uint32_t i = length;
458 uint32_t p = addr;
459 while (i-- > 0)
460 z80_read(p++);
461 }
462
463 return CMD_RET_SUCCESS;
464 }
465
466 command_ret_t do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
467 {
468 uint32_t addr, length;
469 uint8_t data;
470
471 (void) cmdtp;
472 (void) flag;
473
474 if (argc < 4)
475 return CMD_RET_USAGE;
476
477 /* Address is always specified. */
478 addr = eval_arg(argv[1], NULL);
479
480 /* Length is the number of bytes. */
481 length = eval_arg(argv[2], NULL);
482
483 data = eval_arg(argv[3], NULL);
484
485 /*
486 * We want to optimize the loops to run as fast as possible.
487 * If we have only one object, just run infinite loops.
488 */
489 if (length == 1) {
490 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
491 my_puts_P(PSTR("Bus timeout\n"));
492 return CMD_RET_FAILURE;
493 }
494 cli();
495 for (;;)
496 z80_write(addr, data);
497 }
498
499 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
500 my_puts_P(PSTR("Bus timeout\n"));
501 return CMD_RET_FAILURE;
502 }
503 cli();
504 for (;;) {
505 uint32_t i = length;
506 uint32_t p = addr;
507 while (i-- > 0)
508 z80_write(p++, data);
509 }
510 }
511
512 //#define CONFIG_SYS_ALT_MEMTEST
513
514 #ifdef CONFIG_CMD_MEMTEST
515 static uint32_t mem_test_alt(uint32_t start_addr, uint32_t end_addr)
516 {
517 uint32_t addr;
518 uint32_t dummy;
519 uint32_t errs = 0;
520 uint32_t offset;
521 uint32_t test_offset;
522 uint8_t pattern;
523 uint8_t anti_pattern;
524 uint8_t temp;
525 uint32_t num_bytes;
526
527 static const FLASH uint8_t bitpattern[] = {
528 0x01, /* single bit */
529 0x03, /* two adjacent bits */
530 0x07, /* three adjacent bits */
531 0x0F, /* four adjacent bits */
532 0x05, /* two non-adjacent bits */
533 0x15, /* three non-adjacent bits */
534 0x55, /* four non-adjacent bits */
535 0xaa, /* alternating 1/0 */
536 };
537
538 /*
539 * Data line test: write a pattern to the first
540 * location, write the 1's complement to a 'parking'
541 * address (changes the state of the data bus so a
542 * floating bus doesn't give a false OK), and then
543 * read the value back. Note that we read it back
544 * into a variable because the next time we read it,
545 * it might be right (been there, tough to explain to
546 * the quality guys why it prints a failure when the
547 * "is" and "should be" are obviously the same in the
548 * error message).
549 *
550 * Rather than exhaustively testing, we test some
551 * patterns by shifting '1' bits through a field of
552 * '0's and '0' bits through a field of '1's (i.e.
553 * pattern and ~pattern).
554 */
555 addr = start_addr;
556 dummy = start_addr+1;
557 for (unsigned int j = 0; j < ARRAY_SIZE(bitpattern); j++) {
558 pattern = bitpattern[j];
559 for (; pattern != 0; pattern <<= 1) {
560 anti_pattern = ~pattern;
561 z80_write(addr, pattern);
562 z80_write(dummy, anti_pattern); /* clear the test data off the bus */
563 temp = z80_read(addr);
564 if (temp != pattern) {
565 printf_P(PSTR("FAILURE (data line): "
566 "expected %02x, actual %02x\n"),
567 pattern, temp);
568 errs++;
569 }
570 z80_write(addr, anti_pattern);
571 z80_write(dummy, pattern); /* clear the test data off the bus */
572 temp = z80_read(addr);
573 if (temp != anti_pattern) {
574 printf_P(PSTR("FAILURE (data line): "
575 "Is %02x, should be %02x\n"),
576 temp, anti_pattern);
577 errs++;
578 }
579 }
580
581 if (ctrlc())
582 return -1;
583 }
584
585 if (errs)
586 return errs;
587
588 /*
589 * Based on code whose Original Author and Copyright
590 * information follows: Copyright (c) 1998 by Michael
591 * Barr. This software is placed into the public
592 * domain and may be used for any purpose. However,
593 * this notice must not be changed or removed and no
594 * warranty is either expressed or implied by its
595 * publication or distribution.
596 */
597
598 /*
599 * Address line test
600
601 * Description: Test the address bus wiring in a
602 * memory region by performing a walking
603 * 1's test on the relevant bits of the
604 * address and checking for aliasing.
605 * This test will find single-bit
606 * address failures such as stuck-high,
607 * stuck-low, and shorted pins. The base
608 * address and size of the region are
609 * selected by the caller.
610
611 * Notes: For best results, the selected base
612 * address should have enough LSB 0's to
613 * guarantee single address bit changes.
614 * For example, to test a 64-Kbyte
615 * region, select a base address on a
616 * 64-Kbyte boundary. Also, select the
617 * region size as a power-of-two if at
618 * all possible.
619 *
620 * Returns: 0 if the test succeeds, 1 if the test fails.
621 */
622
623 num_bytes = (end_addr - start_addr) / sizeof(uint8_t);
624
625 pattern = 0xaa;
626 anti_pattern = 0x55;
627
628 // debug("## %s:%d: length = 0x%.5lx\n", __func__, __LINE__, num_bytes);
629 /*
630 * Write the default pattern at each of the
631 * power-of-two offsets.
632 */
633 for (offset = 1; offset < num_bytes; offset <<= 1)
634 z80_write(addr+offset, pattern);
635
636 /*
637 * Check for address bits stuck high.
638 */
639 z80_write(start_addr, anti_pattern);
640
641 for (offset = 1; offset < num_bytes; offset <<= 1) {
642 temp = z80_read(start_addr + offset);
643 if (temp != pattern) {
644 printf_P(PSTR("FAILURE: Address bit stuck high @ 0x%.5lx:"
645 " expected 0x%.2x, actual 0x%.2x\n"),
646 start_addr + offset, pattern, temp);
647 errs++;
648 if (ctrlc())
649 return -1;
650 }
651 }
652 z80_write(start_addr, pattern);
653
654 /*
655 * Check for addr bits stuck low or shorted.
656 */
657 for (test_offset = 1; test_offset < num_bytes; test_offset <<= 1) {
658 z80_write(start_addr + test_offset, anti_pattern);
659
660 for (offset = 1; offset < num_bytes; offset <<= 1) {
661 temp = z80_read(start_addr + offset);
662 if ((temp != pattern) && (offset != test_offset)) {
663 printf_P(PSTR("FAILURE: Address bit stuck low or shorted"
664 " @ 0x%.5lx: expected 0x%.2x, actual 0x%.2x\n"),
665 start_addr + offset, pattern, temp);
666 errs++;
667 if (ctrlc())
668 return -1;
669 }
670 }
671 z80_write(start_addr + test_offset, pattern);
672 }
673
674 if (errs)
675 return errs;
676
677 /*
678 * Description: Test the integrity of a physical
679 * memory device by performing an
680 * increment/decrement test over the
681 * entire region. In the process every
682 * storage bit in the device is tested
683 * as a zero and a one. The base address
684 * and the size of the region are
685 * selected by the caller.
686 *
687 * Returns: 0 if the test succeeds, 1 if the test fails.
688 */
689 num_bytes++;
690
691 /*
692 * Fill memory with a known pattern.
693 */
694 for (pattern = 1, addr = start_addr; addr <= end_addr; pattern++, addr++)
695 z80_write(addr, pattern);
696
697 /*
698 * Check each location and invert it for the second pass.
699 */
700 for (pattern = 1, addr = start_addr; addr <= end_addr; pattern++, addr++) {
701 temp = z80_read(addr);
702 if (temp != pattern) {
703 printf_P(PSTR("FAILURE (read/write) @ 0x%.5lx:"
704 " expected 0x%.2x, actual 0x%.2x)\n"),
705 addr, pattern, temp);
706 errs++;
707 if (ctrlc())
708 return -1;
709 }
710
711 anti_pattern = ~pattern;
712 z80_write(addr, anti_pattern);
713 }
714
715 /*
716 * Check each location for the inverted pattern and zero it.
717 */
718 for (pattern = 1, addr = start_addr; addr <= end_addr; pattern++, addr++) {
719 anti_pattern = ~pattern;
720 temp = z80_read(addr);
721 if (temp != anti_pattern) {
722 printf_P(PSTR("FAILURE (read/write) @ 0x%.5lx:"
723 " expected 0x%.2x, actual 0x%.2x)\n"),
724 start_addr, anti_pattern, temp);
725 errs++;
726 if (ctrlc())
727 return -1;
728 }
729 z80_write(addr, 0);
730 }
731
732 return errs;
733 }
734
735 /*
736 * Perform a memory test. A more complete alternative test can be
737 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
738 * interrupted by ctrl-c or by a failure of one of the sub-tests.
739 */
740 command_ret_t do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
741 char * const argv[])
742 {
743 uint32_t start = 0;
744 uint32_t end;
745 unsigned int iteration_limit = 0;
746 unsigned int iteration;
747 uint32_t errs = 0; /* number of errors */
748 int ret;
749
750 (void) cmdtp;
751 (void) flag;
752
753 if (argc > 1)
754 start = eval_arg(argv[1], NULL);
755
756 if (argc > 2)
757 end = eval_arg(argv[2], NULL);
758 else
759 end = CONFIG_SYS_RAMSIZE_MAX - 1;
760
761 if (argc > 3)
762 iteration_limit = (unsigned int) eval_arg(argv[3], NULL);
763
764 printf_P(PSTR("Testing %05lx ... %05lx:\n"), start, end);
765 // debug("## %s:%d: start %#05lx end %#05lx\n", __func__, __LINE__, start, end);
766
767 clear_ctrlc(); /* forget any previous Control C */
768
769 for (iteration = 0;
770 !iteration_limit || iteration < iteration_limit;
771 iteration++) {
772
773 printf_P(PSTR("Iteration: %6d\r"), iteration + 1);
774 // debug("\n");
775
776 if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
777 my_puts_P(PSTR("Bus timeout\n"));
778 return CMD_RET_FAILURE;
779 }
780 errs += mem_test_alt(start, end);
781 z80_bus_cmd(Release);
782
783 if (had_ctrlc() || ctrlc()) {
784 break;
785 }
786 }
787
788 if (had_ctrlc()) {
789 /* Memory test was aborted - write a newline to finish off */
790 putchar('\n');
791 ret = CMD_RET_FAILURE;
792 } else {
793 printf_P(PSTR("Tested %d iteration(s) with %lu errors.\n"),
794 iteration, errs);
795 ret = errs ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
796 }
797
798 return ret;
799 }
800 #endif /* CONFIG_CMD_MEMTEST */
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