3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
11 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
16 #include <bootretry.h>
20 #ifdef CONFIG_HAS_DATAFLASH
21 #include <dataflash.h>
28 #include <linux/compiler.h>
30 DECLARE_GLOBAL_DATA_PTR;
32 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
33 #define CONFIG_SYS_MEMTEST_SCRATCH 0
36 static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
38 /* Display values from last command.
39 * Memory modify remembered values are different from display memory.
41 static ulong dp_last_addr, dp_last_size;
42 static ulong dp_last_length = 0x40;
43 static ulong mm_last_addr, mm_last_size;
45 static ulong base_address = 0;
50 * md{.b, .w, .l, .q} {addr} {len}
52 #define DISP_LINE_LEN 16
53 static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
56 #if defined(CONFIG_HAS_DATAFLASH)
57 ulong nbytes, linebytes;
62 /* We use the last specified parameters, unless new ones are
67 length = dp_last_length;
72 if ((flag & CMD_FLAG_REPEAT) == 0) {
73 /* New command specified. Check for a size specification.
74 * Defaults to long if no or incorrect specification.
76 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
79 /* Address is specified since argc > 1
81 addr = simple_strtoul(argv[1], NULL, 16);
84 /* If another parameter, it is the length to display.
85 * Length is the number of objects, not number of bytes.
88 length = simple_strtoul(argv[2], NULL, 16);
91 #if defined(CONFIG_HAS_DATAFLASH)
94 * We buffer all read data, so we can make sure data is read only
95 * once, and all accesses are with the specified bus width.
97 nbytes = length * size;
99 char linebuf[DISP_LINE_LEN];
101 linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
103 rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
104 p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
105 print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
113 } while (nbytes > 0);
116 ulong bytes = size * length;
117 const void *buf = map_sysmem(addr, bytes);
119 /* Print the lines. */
120 print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
127 dp_last_length = length;
132 static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
134 return mod_mem (cmdtp, 1, flag, argc, argv);
136 static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
138 return mod_mem (cmdtp, 0, flag, argc, argv);
141 static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
143 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
153 if ((argc < 3) || (argc > 4))
154 return CMD_RET_USAGE;
156 /* Check for size specification.
158 if ((size = cmd_get_data_size(argv[0], 4)) < 1)
161 /* Address is specified since argc > 1
163 addr = simple_strtoul(argv[1], NULL, 16);
164 addr += base_address;
166 /* Get the value to write.
168 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
169 writeval = simple_strtoull(argv[2], NULL, 16);
171 writeval = simple_strtoul(argv[2], NULL, 16);
176 count = simple_strtoul(argv[3], NULL, 16);
181 bytes = size * count;
182 start = map_sysmem(addr, bytes);
184 while (count-- > 0) {
186 *((u32 *)buf) = (u32)writeval;
187 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
189 *((u64 *)buf) = (u64)writeval;
192 *((u16 *)buf) = (u16)writeval;
194 *((u8 *)buf) = (u8)writeval;
201 #ifdef CONFIG_MX_CYCLIC
202 static int do_mem_mdc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
208 return CMD_RET_USAGE;
210 count = simple_strtoul(argv[3], NULL, 10);
213 do_mem_md (NULL, 0, 3, argv);
215 /* delay for <count> ms... */
216 for (i=0; i<count; i++)
219 /* check for ctrl-c to abort... */
229 static int do_mem_mwc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
235 return CMD_RET_USAGE;
237 count = simple_strtoul(argv[3], NULL, 10);
240 do_mem_mw (NULL, 0, 3, argv);
242 /* delay for <count> ms... */
243 for (i=0; i<count; i++)
246 /* check for ctrl-c to abort... */
255 #endif /* CONFIG_MX_CYCLIC */
257 static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
259 ulong addr1, addr2, count, ngood, bytes;
263 const void *buf1, *buf2, *base;
264 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
271 return CMD_RET_USAGE;
273 /* Check for size specification.
275 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
277 type = size == 8 ? "double word" :
279 size == 2 ? "halfword" : "byte";
281 addr1 = simple_strtoul(argv[1], NULL, 16);
282 addr1 += base_address;
284 addr2 = simple_strtoul(argv[2], NULL, 16);
285 addr2 += base_address;
287 count = simple_strtoul(argv[3], NULL, 16);
289 #ifdef CONFIG_HAS_DATAFLASH
290 if (addr_dataflash(addr1) | addr_dataflash(addr2)){
291 puts ("Comparison with DataFlash space not supported.\n\r");
296 bytes = size * count;
297 base = buf1 = map_sysmem(addr1, bytes);
298 buf2 = map_sysmem(addr2, bytes);
299 for (ngood = 0; ngood < count; ++ngood) {
301 word1 = *(u32 *)buf1;
302 word2 = *(u32 *)buf2;
303 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
304 } else if (size == 8) {
305 word1 = *(u64 *)buf1;
306 word2 = *(u64 *)buf2;
308 } else if (size == 2) {
309 word1 = *(u16 *)buf1;
310 word2 = *(u16 *)buf2;
315 if (word1 != word2) {
316 ulong offset = buf1 - base;
317 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
318 printf("%s at 0x%p (%#0*"PRIx64") != %s at 0x%p (%#0*"
320 type, (void *)(addr1 + offset), size, word1,
321 type, (void *)(addr2 + offset), size, word2);
323 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
324 type, (ulong)(addr1 + offset), size, word1,
325 type, (ulong)(addr2 + offset), size, word2);
334 /* reset watchdog from time to time */
335 if ((ngood % (64 << 10)) == 0)
341 printf("Total of %ld %s(s) were the same\n", ngood, type);
345 static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
347 ulong addr, dest, count;
351 return CMD_RET_USAGE;
353 /* Check for size specification.
355 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
358 addr = simple_strtoul(argv[1], NULL, 16);
359 addr += base_address;
361 dest = simple_strtoul(argv[2], NULL, 16);
362 dest += base_address;
364 count = simple_strtoul(argv[3], NULL, 16);
367 puts ("Zero length ???\n");
371 #ifdef CONFIG_MTD_NOR_FLASH
372 /* check if we are copying to Flash */
373 if ( (addr2info(dest) != NULL)
374 #ifdef CONFIG_HAS_DATAFLASH
375 && (!addr_dataflash(dest))
380 puts ("Copy to Flash... ");
382 rc = flash_write ((char *)addr, dest, count*size);
392 #ifdef CONFIG_HAS_DATAFLASH
393 /* Check if we are copying from RAM or Flash to DataFlash */
394 if (addr_dataflash(dest) && !addr_dataflash(addr)){
397 puts ("Copy to DataFlash... ");
399 rc = write_dataflash (dest, addr, count*size);
402 dataflash_perror (rc);
409 /* Check if we are copying from DataFlash to RAM */
410 if (addr_dataflash(addr) && !addr_dataflash(dest)
411 #ifdef CONFIG_MTD_NOR_FLASH
412 && (addr2info(dest) == NULL)
416 rc = read_dataflash(addr, count * size, (char *) dest);
418 dataflash_perror (rc);
424 if (addr_dataflash(addr) && addr_dataflash(dest)){
425 puts ("Unsupported combination of source/destination.\n\r");
430 memcpy((void *)dest, (void *)addr, count * size);
435 static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
439 /* Set new base address.
441 base_address = simple_strtoul(argv[1], NULL, 16);
443 /* Print the current base address.
445 printf("Base Address: 0x%08lx\n", base_address);
449 static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
452 ulong addr, length, i, bytes;
454 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
458 volatile u16 *shortp;
463 return CMD_RET_USAGE;
466 * Check for a size specification.
467 * Defaults to long if no or incorrect specification.
469 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
472 /* Address is always specified.
474 addr = simple_strtoul(argv[1], NULL, 16);
476 /* Length is the number of objects, not number of bytes.
478 length = simple_strtoul(argv[2], NULL, 16);
480 bytes = size * length;
481 buf = map_sysmem(addr, bytes);
483 /* We want to optimize the loops to run as fast as possible.
484 * If we have only one object, just run infinite loops.
487 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
509 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
547 static int do_mem_loopw(cmd_tbl_t *cmdtp, int flag, int argc,
550 ulong addr, length, i, bytes;
552 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
559 volatile u16 *shortp;
564 return CMD_RET_USAGE;
567 * Check for a size specification.
568 * Defaults to long if no or incorrect specification.
570 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
573 /* Address is always specified.
575 addr = simple_strtoul(argv[1], NULL, 16);
577 /* Length is the number of objects, not number of bytes.
579 length = simple_strtoul(argv[2], NULL, 16);
582 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
583 data = simple_strtoull(argv[3], NULL, 16);
585 data = simple_strtoul(argv[3], NULL, 16);
588 bytes = size * length;
589 buf = map_sysmem(addr, bytes);
591 /* We want to optimize the loops to run as fast as possible.
592 * If we have only one object, just run infinite loops.
595 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
617 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
650 #endif /* CONFIG_LOOPW */
652 #ifdef CONFIG_CMD_MEMTEST
653 static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr,
664 vu_long anti_pattern;
666 static const ulong bitpattern[] = {
667 0x00000001, /* single bit */
668 0x00000003, /* two adjacent bits */
669 0x00000007, /* three adjacent bits */
670 0x0000000F, /* four adjacent bits */
671 0x00000005, /* two non-adjacent bits */
672 0x00000015, /* three non-adjacent bits */
673 0x00000055, /* four non-adjacent bits */
674 0xaaaaaaaa, /* alternating 1/0 */
677 num_words = (end_addr - start_addr) / sizeof(vu_long);
680 * Data line test: write a pattern to the first
681 * location, write the 1's complement to a 'parking'
682 * address (changes the state of the data bus so a
683 * floating bus doesn't give a false OK), and then
684 * read the value back. Note that we read it back
685 * into a variable because the next time we read it,
686 * it might be right (been there, tough to explain to
687 * the quality guys why it prints a failure when the
688 * "is" and "should be" are obviously the same in the
691 * Rather than exhaustively testing, we test some
692 * patterns by shifting '1' bits through a field of
693 * '0's and '0' bits through a field of '1's (i.e.
694 * pattern and ~pattern).
697 for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) {
699 for (; val != 0; val <<= 1) {
701 *dummy = ~val; /* clear the test data off the bus */
703 if (readback != val) {
704 printf("FAILURE (data line): "
705 "expected %08lx, actual %08lx\n",
714 if (readback != ~val) {
715 printf("FAILURE (data line): "
716 "Is %08lx, should be %08lx\n",
726 * Based on code whose Original Author and Copyright
727 * information follows: Copyright (c) 1998 by Michael
728 * Barr. This software is placed into the public
729 * domain and may be used for any purpose. However,
730 * this notice must not be changed or removed and no
731 * warranty is either expressed or implied by its
732 * publication or distribution.
738 * Description: Test the address bus wiring in a
739 * memory region by performing a walking
740 * 1's test on the relevant bits of the
741 * address and checking for aliasing.
742 * This test will find single-bit
743 * address failures such as stuck-high,
744 * stuck-low, and shorted pins. The base
745 * address and size of the region are
746 * selected by the caller.
748 * Notes: For best results, the selected base
749 * address should have enough LSB 0's to
750 * guarantee single address bit changes.
751 * For example, to test a 64-Kbyte
752 * region, select a base address on a
753 * 64-Kbyte boundary. Also, select the
754 * region size as a power-of-two if at
757 * Returns: 0 if the test succeeds, 1 if the test fails.
759 pattern = (vu_long) 0xaaaaaaaa;
760 anti_pattern = (vu_long) 0x55555555;
762 debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words);
764 * Write the default pattern at each of the
765 * power-of-two offsets.
767 for (offset = 1; offset < num_words; offset <<= 1)
768 addr[offset] = pattern;
771 * Check for address bits stuck high.
774 addr[test_offset] = anti_pattern;
776 for (offset = 1; offset < num_words; offset <<= 1) {
778 if (temp != pattern) {
779 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
780 " expected 0x%.8lx, actual 0x%.8lx\n",
781 start_addr + offset*sizeof(vu_long),
788 addr[test_offset] = pattern;
792 * Check for addr bits stuck low or shorted.
794 for (test_offset = 1; test_offset < num_words; test_offset <<= 1) {
795 addr[test_offset] = anti_pattern;
797 for (offset = 1; offset < num_words; offset <<= 1) {
799 if ((temp != pattern) && (offset != test_offset)) {
800 printf("\nFAILURE: Address bit stuck low or"
801 " shorted @ 0x%.8lx: expected 0x%.8lx,"
803 start_addr + offset*sizeof(vu_long),
810 addr[test_offset] = pattern;
814 * Description: Test the integrity of a physical
815 * memory device by performing an
816 * increment/decrement test over the
817 * entire region. In the process every
818 * storage bit in the device is tested
819 * as a zero and a one. The base address
820 * and the size of the region are
821 * selected by the caller.
823 * Returns: 0 if the test succeeds, 1 if the test fails.
828 * Fill memory with a known pattern.
830 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
832 addr[offset] = pattern;
836 * Check each location and invert it for the second pass.
838 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
841 if (temp != pattern) {
842 printf("\nFAILURE (read/write) @ 0x%.8lx:"
843 " expected 0x%.8lx, actual 0x%.8lx)\n",
844 start_addr + offset*sizeof(vu_long),
851 anti_pattern = ~pattern;
852 addr[offset] = anti_pattern;
856 * Check each location for the inverted pattern and zero it.
858 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
860 anti_pattern = ~pattern;
862 if (temp != anti_pattern) {
863 printf("\nFAILURE (read/write): @ 0x%.8lx:"
864 " expected 0x%.8lx, actual 0x%.8lx)\n",
865 start_addr + offset*sizeof(vu_long),
877 static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr,
878 vu_long pattern, int iteration)
886 /* Alternate the pattern */
891 * Flip the pattern each time to make lots of zeros and
892 * then, the next time, lots of ones. We decrement
893 * the "negative" patterns and increment the "positive"
894 * patterns to preserve this feature.
896 if (pattern & 0x80000000)
897 pattern = -pattern; /* complement & increment */
901 length = (end_addr - start_addr) / sizeof(ulong);
903 printf("\rPattern %08lX Writing..."
905 "\b\b\b\b\b\b\b\b\b\b",
908 for (addr = buf, val = pattern; addr < end; addr++) {
916 for (addr = buf, val = pattern; addr < end; addr++) {
919 if (readback != val) {
920 ulong offset = addr - buf;
922 printf("\nMem error @ 0x%08X: "
923 "found %08lX, expected %08lX\n",
924 (uint)(uintptr_t)(start_addr + offset*sizeof(vu_long)),
937 * Perform a memory test. A more complete alternative test can be
938 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
939 * interrupted by ctrl-c or by a failure of one of the sub-tests.
941 static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
945 vu_long *buf, *dummy;
946 ulong iteration_limit = 0;
948 ulong errs = 0; /* number of errors, or -1 if interrupted */
951 #if defined(CONFIG_SYS_ALT_MEMTEST)
952 const int alt_test = 1;
954 const int alt_test = 0;
957 start = CONFIG_SYS_MEMTEST_START;
958 end = CONFIG_SYS_MEMTEST_END;
961 if (strict_strtoul(argv[1], 16, &start) < 0)
962 return CMD_RET_USAGE;
965 if (strict_strtoul(argv[2], 16, &end) < 0)
966 return CMD_RET_USAGE;
969 if (strict_strtoul(argv[3], 16, &pattern) < 0)
970 return CMD_RET_USAGE;
973 if (strict_strtoul(argv[4], 16, &iteration_limit) < 0)
974 return CMD_RET_USAGE;
977 printf("Refusing to do empty test\n");
981 printf("Testing %08lx ... %08lx:\n", start, end);
982 debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
985 buf = map_sysmem(start, end - start);
986 dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long));
988 !iteration_limit || iteration < iteration_limit;
995 printf("Iteration: %6d\r", iteration + 1);
998 errs = mem_test_alt(buf, start, end, dummy);
1000 errs = mem_test_quick(buf, start, end, pattern,
1008 * Work-around for eldk-4.2 which gives this warning if we try to
1009 * case in the unmap_sysmem() call:
1010 * warning: initialization discards qualifiers from pointer target type
1013 void *vbuf = (void *)buf;
1014 void *vdummy = (void *)dummy;
1017 unmap_sysmem(vdummy);
1021 /* Memory test was aborted - write a newline to finish off */
1025 printf("Tested %d iteration(s) with %lu errors.\n",
1032 #endif /* CONFIG_CMD_MEMTEST */
1037 * mm{.b, .w, .l, .q} {addr}
1038 * nm{.b, .w, .l, .q} {addr}
1041 mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
1044 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1053 return CMD_RET_USAGE;
1055 bootretry_reset_cmd_timeout(); /* got a good command to get here */
1056 /* We use the last specified parameters, unless new ones are
1059 addr = mm_last_addr;
1060 size = mm_last_size;
1062 if ((flag & CMD_FLAG_REPEAT) == 0) {
1063 /* New command specified. Check for a size specification.
1064 * Defaults to long if no or incorrect specification.
1066 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
1069 /* Address is specified since argc > 1
1071 addr = simple_strtoul(argv[1], NULL, 16);
1072 addr += base_address;
1075 #ifdef CONFIG_HAS_DATAFLASH
1076 if (addr_dataflash(addr)){
1077 puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
1082 /* Print the address, followed by value. Then accept input for
1083 * the next value. A non-converted value exits.
1086 ptr = map_sysmem(addr, size);
1087 printf("%08lx:", addr);
1089 printf(" %08x", *((u32 *)ptr));
1090 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1092 printf(" %016" PRIx64, *((u64 *)ptr));
1095 printf(" %04x", *((u16 *)ptr));
1097 printf(" %02x", *((u8 *)ptr));
1099 nbytes = cli_readline(" ? ");
1100 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
1101 /* <CR> pressed as only input, don't modify current
1102 * location and move to next. "-" pressed will go back.
1105 addr += nbytes ? -size : size;
1107 /* good enough to not time out */
1108 bootretry_reset_cmd_timeout();
1110 #ifdef CONFIG_BOOT_RETRY_TIME
1111 else if (nbytes == -2) {
1112 break; /* timed out, exit the command */
1117 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1118 i = simple_strtoull(console_buffer, &endp, 16);
1120 i = simple_strtoul(console_buffer, &endp, 16);
1122 nbytes = endp - console_buffer;
1124 /* good enough to not time out
1126 bootretry_reset_cmd_timeout();
1129 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1145 mm_last_addr = addr;
1146 mm_last_size = size;
1150 #ifdef CONFIG_CMD_CRC32
1152 static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1159 return CMD_RET_USAGE;
1163 #ifdef CONFIG_HASH_VERIFY
1164 if (strcmp(*av, "-v") == 0) {
1165 flags |= HASH_FLAG_VERIFY | HASH_FLAG_ENV;
1171 return hash_command("crc32", flags, cmdtp, flag, ac, av);
1176 /**************************************************/
1178 md, 3, 1, do_mem_md,
1180 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1181 "[.b, .w, .l, .q] address [# of objects]"
1183 "[.b, .w, .l] address [# of objects]"
1189 mm, 2, 1, do_mem_mm,
1190 "memory modify (auto-incrementing address)",
1191 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1192 "[.b, .w, .l, .q] address"
1194 "[.b, .w, .l] address"
1200 nm, 2, 1, do_mem_nm,
1201 "memory modify (constant address)",
1202 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1203 "[.b, .w, .l, .q] address"
1205 "[.b, .w, .l] address"
1210 mw, 4, 1, do_mem_mw,
1211 "memory write (fill)",
1212 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1213 "[.b, .w, .l, .q] address value [count]"
1215 "[.b, .w, .l] address value [count]"
1220 cp, 4, 1, do_mem_cp,
1222 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1223 "[.b, .w, .l, .q] source target count"
1225 "[.b, .w, .l] source target count"
1230 cmp, 4, 1, do_mem_cmp,
1232 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1233 "[.b, .w, .l, .q] addr1 addr2 count"
1235 "[.b, .w, .l] addr1 addr2 count"
1239 #ifdef CONFIG_CMD_CRC32
1241 #ifndef CONFIG_HASH_VERIFY
1244 crc32, 4, 1, do_mem_crc,
1245 "checksum calculation",
1246 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1249 #else /* CONFIG_HASH_VERIFY */
1252 crc32, 5, 1, do_mem_crc,
1253 "checksum calculation",
1254 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1255 "-v address count crc\n - verify crc of memory area"
1258 #endif /* CONFIG_HASH_VERIFY */
1262 #ifdef CONFIG_CMD_MEMINFO
1263 __weak void board_show_dram(phys_size_t size)
1266 print_size(size, "\n");
1269 static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
1270 char * const argv[])
1272 board_show_dram(gd->ram_size);
1279 base, 2, 1, do_mem_base,
1280 "print or set address offset",
1281 "\n - print address offset for memory commands\n"
1282 "base off\n - set address offset for memory commands to 'off'"
1286 loop, 3, 1, do_mem_loop,
1287 "infinite loop on address range",
1288 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1289 "[.b, .w, .l, .q] address number_of_objects"
1291 "[.b, .w, .l] address number_of_objects"
1297 loopw, 4, 1, do_mem_loopw,
1298 "infinite write loop on address range",
1299 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1300 "[.b, .w, .l, .q] address number_of_objects data_to_write"
1302 "[.b, .w, .l] address number_of_objects data_to_write"
1305 #endif /* CONFIG_LOOPW */
1307 #ifdef CONFIG_CMD_MEMTEST
1309 mtest, 5, 1, do_mem_mtest,
1310 "simple RAM read/write test",
1311 "[start [end [pattern [iterations]]]]"
1313 #endif /* CONFIG_CMD_MEMTEST */
1315 #ifdef CONFIG_MX_CYCLIC
1317 mdc, 4, 1, do_mem_mdc,
1318 "memory display cyclic",
1319 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1320 "[.b, .w, .l, .q] address count delay(ms)"
1322 "[.b, .w, .l] address count delay(ms)"
1327 mwc, 4, 1, do_mem_mwc,
1328 "memory write cyclic",
1329 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1330 "[.b, .w, .l, .q] address value delay(ms)"
1332 "[.b, .w, .l] address value delay(ms)"
1335 #endif /* CONFIG_MX_CYCLIC */
1337 #ifdef CONFIG_CMD_MEMINFO
1339 meminfo, 3, 1, do_mem_info,
1340 "display memory information",