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)
15 #include <bootretry.h>
18 #ifdef CONFIG_HAS_DATAFLASH
19 #include <dataflash.h>
25 #include <linux/compiler.h>
27 DECLARE_GLOBAL_DATA_PTR;
29 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
30 #define CONFIG_SYS_MEMTEST_SCRATCH 0
33 static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
35 /* Display values from last command.
36 * Memory modify remembered values are different from display memory.
38 static uint dp_last_addr, dp_last_size;
39 static uint dp_last_length = 0x40;
40 static uint mm_last_addr, mm_last_size;
42 static ulong base_address = 0;
47 * md{.b, .w, .l, .q} {addr} {len}
49 #define DISP_LINE_LEN 16
50 static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
53 #if defined(CONFIG_HAS_DATAFLASH)
54 ulong nbytes, linebytes;
59 /* We use the last specified parameters, unless new ones are
64 length = dp_last_length;
69 if ((flag & CMD_FLAG_REPEAT) == 0) {
70 /* New command specified. Check for a size specification.
71 * Defaults to long if no or incorrect specification.
73 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
76 /* Address is specified since argc > 1
78 addr = simple_strtoul(argv[1], NULL, 16);
81 /* If another parameter, it is the length to display.
82 * Length is the number of objects, not number of bytes.
85 length = simple_strtoul(argv[2], NULL, 16);
88 #if defined(CONFIG_HAS_DATAFLASH)
91 * We buffer all read data, so we can make sure data is read only
92 * once, and all accesses are with the specified bus width.
94 nbytes = length * size;
96 char linebuf[DISP_LINE_LEN];
98 linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
100 rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
101 p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
102 print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
110 } while (nbytes > 0);
113 # if defined(CONFIG_BLACKFIN)
114 /* See if we're trying to display L1 inst */
115 if (addr_bfin_on_chip_mem(addr)) {
116 char linebuf[DISP_LINE_LEN];
117 ulong linebytes, nbytes = length * size;
119 linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
120 memcpy(linebuf, (void *)addr, linebytes);
121 print_buffer(addr, linebuf, size, linebytes/size, DISP_LINE_LEN/size);
129 } while (nbytes > 0);
134 ulong bytes = size * length;
135 const void *buf = map_sysmem(addr, bytes);
137 /* Print the lines. */
138 print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
145 dp_last_length = length;
150 static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
152 return mod_mem (cmdtp, 1, flag, argc, argv);
154 static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
156 return mod_mem (cmdtp, 0, flag, argc, argv);
159 static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
161 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
171 if ((argc < 3) || (argc > 4))
172 return CMD_RET_USAGE;
174 /* Check for size specification.
176 if ((size = cmd_get_data_size(argv[0], 4)) < 1)
179 /* Address is specified since argc > 1
181 addr = simple_strtoul(argv[1], NULL, 16);
182 addr += base_address;
184 /* Get the value to write.
186 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
187 writeval = simple_strtoull(argv[2], NULL, 16);
189 writeval = simple_strtoul(argv[2], NULL, 16);
194 count = simple_strtoul(argv[3], NULL, 16);
199 bytes = size * count;
200 buf = map_sysmem(addr, bytes);
201 while (count-- > 0) {
203 *((u32 *)buf) = (u32)writeval;
204 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
206 *((u64 *)buf) = (u64)writeval;
209 *((u16 *)buf) = (u16)writeval;
211 *((u8 *)buf) = (u8)writeval;
218 #ifdef CONFIG_MX_CYCLIC
219 static int do_mem_mdc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
225 return CMD_RET_USAGE;
227 count = simple_strtoul(argv[3], NULL, 10);
230 do_mem_md (NULL, 0, 3, argv);
232 /* delay for <count> ms... */
233 for (i=0; i<count; i++)
236 /* check for ctrl-c to abort... */
246 static int do_mem_mwc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
252 return CMD_RET_USAGE;
254 count = simple_strtoul(argv[3], NULL, 10);
257 do_mem_mw (NULL, 0, 3, argv);
259 /* delay for <count> ms... */
260 for (i=0; i<count; i++)
263 /* check for ctrl-c to abort... */
272 #endif /* CONFIG_MX_CYCLIC */
274 static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
276 ulong addr1, addr2, count, ngood, bytes;
280 const void *buf1, *buf2, *base;
281 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
288 return CMD_RET_USAGE;
290 /* Check for size specification.
292 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
294 type = size == 8 ? "double word" :
296 size == 2 ? "halfword" : "byte";
298 addr1 = simple_strtoul(argv[1], NULL, 16);
299 addr1 += base_address;
301 addr2 = simple_strtoul(argv[2], NULL, 16);
302 addr2 += base_address;
304 count = simple_strtoul(argv[3], NULL, 16);
306 #ifdef CONFIG_HAS_DATAFLASH
307 if (addr_dataflash(addr1) | addr_dataflash(addr2)){
308 puts ("Comparison with DataFlash space not supported.\n\r");
313 #ifdef CONFIG_BLACKFIN
314 if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) {
315 puts ("Comparison with L1 instruction memory not supported.\n\r");
320 bytes = size * count;
321 base = buf1 = map_sysmem(addr1, bytes);
322 buf2 = map_sysmem(addr2, bytes);
323 for (ngood = 0; ngood < count; ++ngood) {
325 word1 = *(u32 *)buf1;
326 word2 = *(u32 *)buf2;
327 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
328 } else if (size == 8) {
329 word1 = *(u64 *)buf1;
330 word2 = *(u64 *)buf2;
332 } else if (size == 2) {
333 word1 = *(u16 *)buf1;
334 word2 = *(u16 *)buf2;
339 if (word1 != word2) {
340 ulong offset = buf1 - base;
341 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
342 printf("%s at 0x%p (%#0*"PRIx64") != %s at 0x%p (%#0*"
344 type, (void *)(addr1 + offset), size, word1,
345 type, (void *)(addr2 + offset), size, word2);
347 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
348 type, (ulong)(addr1 + offset), size, word1,
349 type, (ulong)(addr2 + offset), size, word2);
358 /* reset watchdog from time to time */
359 if ((ngood % (64 << 10)) == 0)
365 printf("Total of %ld %s(s) were the same\n", ngood, type);
369 static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
371 ulong addr, dest, count, bytes;
377 return CMD_RET_USAGE;
379 /* Check for size specification.
381 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
384 addr = simple_strtoul(argv[1], NULL, 16);
385 addr += base_address;
387 dest = simple_strtoul(argv[2], NULL, 16);
388 dest += base_address;
390 count = simple_strtoul(argv[3], NULL, 16);
393 puts ("Zero length ???\n");
397 #ifndef CONFIG_SYS_NO_FLASH
398 /* check if we are copying to Flash */
399 if ( (addr2info(dest) != NULL)
400 #ifdef CONFIG_HAS_DATAFLASH
401 && (!addr_dataflash(dest))
406 puts ("Copy to Flash... ");
408 rc = flash_write ((char *)addr, dest, count*size);
418 #ifdef CONFIG_HAS_DATAFLASH
419 /* Check if we are copying from RAM or Flash to DataFlash */
420 if (addr_dataflash(dest) && !addr_dataflash(addr)){
423 puts ("Copy to DataFlash... ");
425 rc = write_dataflash (dest, addr, count*size);
428 dataflash_perror (rc);
435 /* Check if we are copying from DataFlash to RAM */
436 if (addr_dataflash(addr) && !addr_dataflash(dest)
437 #ifndef CONFIG_SYS_NO_FLASH
438 && (addr2info(dest) == NULL)
442 rc = read_dataflash(addr, count * size, (char *) dest);
444 dataflash_perror (rc);
450 if (addr_dataflash(addr) && addr_dataflash(dest)){
451 puts ("Unsupported combination of source/destination.\n\r");
456 #ifdef CONFIG_BLACKFIN
457 /* See if we're copying to/from L1 inst */
458 if (addr_bfin_on_chip_mem(dest) || addr_bfin_on_chip_mem(addr)) {
459 memcpy((void *)dest, (void *)addr, count * size);
464 bytes = size * count;
465 buf = map_sysmem(dest, bytes);
466 src = map_sysmem(addr, bytes);
467 while (count-- > 0) {
469 *((u32 *)buf) = *((u32 *)src);
470 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
472 *((u64 *)buf) = *((u64 *)src);
475 *((u16 *)buf) = *((u16 *)src);
477 *((u8 *)buf) = *((u8 *)src);
481 /* reset watchdog from time to time */
482 if ((count % (64 << 10)) == 0)
491 static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
495 /* Set new base address.
497 base_address = simple_strtoul(argv[1], NULL, 16);
499 /* Print the current base address.
501 printf("Base Address: 0x%08lx\n", base_address);
505 static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
508 ulong addr, length, i, bytes;
510 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
514 volatile u16 *shortp;
519 return CMD_RET_USAGE;
522 * Check for a size specification.
523 * Defaults to long if no or incorrect specification.
525 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
528 /* Address is always specified.
530 addr = simple_strtoul(argv[1], NULL, 16);
532 /* Length is the number of objects, not number of bytes.
534 length = simple_strtoul(argv[2], NULL, 16);
536 bytes = size * length;
537 buf = map_sysmem(addr, bytes);
539 /* We want to optimize the loops to run as fast as possible.
540 * If we have only one object, just run infinite loops.
543 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
565 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
603 static int do_mem_loopw(cmd_tbl_t *cmdtp, int flag, int argc,
606 ulong addr, length, i, bytes;
608 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
615 volatile u16 *shortp;
620 return CMD_RET_USAGE;
623 * Check for a size specification.
624 * Defaults to long if no or incorrect specification.
626 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
629 /* Address is always specified.
631 addr = simple_strtoul(argv[1], NULL, 16);
633 /* Length is the number of objects, not number of bytes.
635 length = simple_strtoul(argv[2], NULL, 16);
638 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
639 data = simple_strtoull(argv[3], NULL, 16);
641 data = simple_strtoul(argv[3], NULL, 16);
644 bytes = size * length;
645 buf = map_sysmem(addr, bytes);
647 /* We want to optimize the loops to run as fast as possible.
648 * If we have only one object, just run infinite loops.
651 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
673 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
706 #endif /* CONFIG_LOOPW */
708 #ifdef CONFIG_CMD_MEMTEST
709 static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr,
720 vu_long anti_pattern;
722 static const ulong bitpattern[] = {
723 0x00000001, /* single bit */
724 0x00000003, /* two adjacent bits */
725 0x00000007, /* three adjacent bits */
726 0x0000000F, /* four adjacent bits */
727 0x00000005, /* two non-adjacent bits */
728 0x00000015, /* three non-adjacent bits */
729 0x00000055, /* four non-adjacent bits */
730 0xaaaaaaaa, /* alternating 1/0 */
733 num_words = (end_addr - start_addr) / sizeof(vu_long);
736 * Data line test: write a pattern to the first
737 * location, write the 1's complement to a 'parking'
738 * address (changes the state of the data bus so a
739 * floating bus doesn't give a false OK), and then
740 * read the value back. Note that we read it back
741 * into a variable because the next time we read it,
742 * it might be right (been there, tough to explain to
743 * the quality guys why it prints a failure when the
744 * "is" and "should be" are obviously the same in the
747 * Rather than exhaustively testing, we test some
748 * patterns by shifting '1' bits through a field of
749 * '0's and '0' bits through a field of '1's (i.e.
750 * pattern and ~pattern).
753 for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) {
755 for (; val != 0; val <<= 1) {
757 *dummy = ~val; /* clear the test data off the bus */
759 if (readback != val) {
760 printf("FAILURE (data line): "
761 "expected %08lx, actual %08lx\n",
770 if (readback != ~val) {
771 printf("FAILURE (data line): "
772 "Is %08lx, should be %08lx\n",
782 * Based on code whose Original Author and Copyright
783 * information follows: Copyright (c) 1998 by Michael
784 * Barr. This software is placed into the public
785 * domain and may be used for any purpose. However,
786 * this notice must not be changed or removed and no
787 * warranty is either expressed or implied by its
788 * publication or distribution.
794 * Description: Test the address bus wiring in a
795 * memory region by performing a walking
796 * 1's test on the relevant bits of the
797 * address and checking for aliasing.
798 * This test will find single-bit
799 * address failures such as stuck-high,
800 * stuck-low, and shorted pins. The base
801 * address and size of the region are
802 * selected by the caller.
804 * Notes: For best results, the selected base
805 * address should have enough LSB 0's to
806 * guarantee single address bit changes.
807 * For example, to test a 64-Kbyte
808 * region, select a base address on a
809 * 64-Kbyte boundary. Also, select the
810 * region size as a power-of-two if at
813 * Returns: 0 if the test succeeds, 1 if the test fails.
815 pattern = (vu_long) 0xaaaaaaaa;
816 anti_pattern = (vu_long) 0x55555555;
818 debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words);
820 * Write the default pattern at each of the
821 * power-of-two offsets.
823 for (offset = 1; offset < num_words; offset <<= 1)
824 addr[offset] = pattern;
827 * Check for address bits stuck high.
830 addr[test_offset] = anti_pattern;
832 for (offset = 1; offset < num_words; offset <<= 1) {
834 if (temp != pattern) {
835 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
836 " expected 0x%.8lx, actual 0x%.8lx\n",
837 start_addr + offset*sizeof(vu_long),
844 addr[test_offset] = pattern;
848 * Check for addr bits stuck low or shorted.
850 for (test_offset = 1; test_offset < num_words; test_offset <<= 1) {
851 addr[test_offset] = anti_pattern;
853 for (offset = 1; offset < num_words; offset <<= 1) {
855 if ((temp != pattern) && (offset != test_offset)) {
856 printf("\nFAILURE: Address bit stuck low or"
857 " shorted @ 0x%.8lx: expected 0x%.8lx,"
859 start_addr + offset*sizeof(vu_long),
866 addr[test_offset] = pattern;
870 * Description: Test the integrity of a physical
871 * memory device by performing an
872 * increment/decrement test over the
873 * entire region. In the process every
874 * storage bit in the device is tested
875 * as a zero and a one. The base address
876 * and the size of the region are
877 * selected by the caller.
879 * Returns: 0 if the test succeeds, 1 if the test fails.
884 * Fill memory with a known pattern.
886 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
888 addr[offset] = pattern;
892 * Check each location and invert it for the second pass.
894 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
897 if (temp != pattern) {
898 printf("\nFAILURE (read/write) @ 0x%.8lx:"
899 " expected 0x%.8lx, actual 0x%.8lx)\n",
900 start_addr + offset*sizeof(vu_long),
907 anti_pattern = ~pattern;
908 addr[offset] = anti_pattern;
912 * Check each location for the inverted pattern and zero it.
914 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
916 anti_pattern = ~pattern;
918 if (temp != anti_pattern) {
919 printf("\nFAILURE (read/write): @ 0x%.8lx:"
920 " expected 0x%.8lx, actual 0x%.8lx)\n",
921 start_addr + offset*sizeof(vu_long),
933 static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr,
934 vu_long pattern, int iteration)
942 /* Alternate the pattern */
947 * Flip the pattern each time to make lots of zeros and
948 * then, the next time, lots of ones. We decrement
949 * the "negative" patterns and increment the "positive"
950 * patterns to preserve this feature.
952 if (pattern & 0x80000000)
953 pattern = -pattern; /* complement & increment */
957 length = (end_addr - start_addr) / sizeof(ulong);
959 printf("\rPattern %08lX Writing..."
961 "\b\b\b\b\b\b\b\b\b\b",
964 for (addr = buf, val = pattern; addr < end; addr++) {
972 for (addr = buf, val = pattern; addr < end; addr++) {
975 if (readback != val) {
976 ulong offset = addr - buf;
978 printf("\nMem error @ 0x%08X: "
979 "found %08lX, expected %08lX\n",
980 (uint)(uintptr_t)(start_addr + offset*sizeof(vu_long)),
993 * Perform a memory test. A more complete alternative test can be
994 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
995 * interrupted by ctrl-c or by a failure of one of the sub-tests.
997 static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
1001 vu_long *buf, *dummy;
1002 int iteration_limit;
1004 ulong errs = 0; /* number of errors, or -1 if interrupted */
1007 #if defined(CONFIG_SYS_ALT_MEMTEST)
1008 const int alt_test = 1;
1010 const int alt_test = 0;
1014 start = simple_strtoul(argv[1], NULL, 16);
1016 start = CONFIG_SYS_MEMTEST_START;
1019 end = simple_strtoul(argv[2], NULL, 16);
1021 end = CONFIG_SYS_MEMTEST_END;
1024 pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
1029 iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16);
1031 iteration_limit = 0;
1033 printf("Testing %08x ... %08x:\n", (uint)start, (uint)end);
1034 debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
1037 buf = map_sysmem(start, end - start);
1038 dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long));
1040 !iteration_limit || iteration < iteration_limit;
1047 printf("Iteration: %6d\r", iteration + 1);
1050 errs = mem_test_alt(buf, start, end, dummy);
1052 errs = mem_test_quick(buf, start, end, pattern,
1060 * Work-around for eldk-4.2 which gives this warning if we try to
1061 * case in the unmap_sysmem() call:
1062 * warning: initialization discards qualifiers from pointer target type
1065 void *vbuf = (void *)buf;
1066 void *vdummy = (void *)dummy;
1069 unmap_sysmem(vdummy);
1073 /* Memory test was aborted - write a newline to finish off */
1077 printf("Tested %d iteration(s) with %lu errors.\n",
1082 return ret; /* not reached */
1084 #endif /* CONFIG_CMD_MEMTEST */
1089 * mm{.b, .w, .l, .q} {addr}
1090 * nm{.b, .w, .l, .q} {addr}
1093 mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
1096 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1105 return CMD_RET_USAGE;
1107 bootretry_reset_cmd_timeout(); /* got a good command to get here */
1108 /* We use the last specified parameters, unless new ones are
1111 addr = mm_last_addr;
1112 size = mm_last_size;
1114 if ((flag & CMD_FLAG_REPEAT) == 0) {
1115 /* New command specified. Check for a size specification.
1116 * Defaults to long if no or incorrect specification.
1118 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
1121 /* Address is specified since argc > 1
1123 addr = simple_strtoul(argv[1], NULL, 16);
1124 addr += base_address;
1127 #ifdef CONFIG_HAS_DATAFLASH
1128 if (addr_dataflash(addr)){
1129 puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
1134 #ifdef CONFIG_BLACKFIN
1135 if (addr_bfin_on_chip_mem(addr)) {
1136 puts ("Can't modify L1 instruction in place. Use cp instead.\n\r");
1141 /* Print the address, followed by value. Then accept input for
1142 * the next value. A non-converted value exits.
1145 ptr = map_sysmem(addr, size);
1146 printf("%08lx:", addr);
1148 printf(" %08x", *((u32 *)ptr));
1149 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1151 printf(" %016" PRIx64, *((u64 *)ptr));
1154 printf(" %04x", *((u16 *)ptr));
1156 printf(" %02x", *((u8 *)ptr));
1158 nbytes = cli_readline(" ? ");
1159 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
1160 /* <CR> pressed as only input, don't modify current
1161 * location and move to next. "-" pressed will go back.
1164 addr += nbytes ? -size : size;
1166 /* good enough to not time out */
1167 bootretry_reset_cmd_timeout();
1169 #ifdef CONFIG_BOOT_RETRY_TIME
1170 else if (nbytes == -2) {
1171 break; /* timed out, exit the command */
1176 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1177 i = simple_strtoull(console_buffer, &endp, 16);
1179 i = simple_strtoul(console_buffer, &endp, 16);
1181 nbytes = endp - console_buffer;
1183 /* good enough to not time out
1185 bootretry_reset_cmd_timeout();
1188 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1204 mm_last_addr = addr;
1205 mm_last_size = size;
1209 #ifdef CONFIG_CMD_CRC32
1211 static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1218 return CMD_RET_USAGE;
1222 #ifdef CONFIG_HASH_VERIFY
1223 if (strcmp(*av, "-v") == 0) {
1224 flags |= HASH_FLAG_VERIFY;
1230 return hash_command("crc32", flags, cmdtp, flag, ac, av);
1235 /**************************************************/
1237 md, 3, 1, do_mem_md,
1239 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1240 "[.b, .w, .l, .q] address [# of objects]"
1242 "[.b, .w, .l] address [# of objects]"
1248 mm, 2, 1, do_mem_mm,
1249 "memory modify (auto-incrementing address)",
1250 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1251 "[.b, .w, .l, .q] address"
1253 "[.b, .w, .l] address"
1259 nm, 2, 1, do_mem_nm,
1260 "memory modify (constant address)",
1261 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1262 "[.b, .w, .l, .q] address"
1264 "[.b, .w, .l] address"
1269 mw, 4, 1, do_mem_mw,
1270 "memory write (fill)",
1271 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1272 "[.b, .w, .l, .q] address value [count]"
1274 "[.b, .w, .l] address value [count]"
1279 cp, 4, 1, do_mem_cp,
1281 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1282 "[.b, .w, .l, .q] source target count"
1284 "[.b, .w, .l] source target count"
1289 cmp, 4, 1, do_mem_cmp,
1291 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1292 "[.b, .w, .l, .q] addr1 addr2 count"
1294 "[.b, .w, .l] addr1 addr2 count"
1298 #ifdef CONFIG_CMD_CRC32
1300 #ifndef CONFIG_CRC32_VERIFY
1303 crc32, 4, 1, do_mem_crc,
1304 "checksum calculation",
1305 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1308 #else /* CONFIG_CRC32_VERIFY */
1311 crc32, 5, 1, do_mem_crc,
1312 "checksum calculation",
1313 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1314 "-v address count crc\n - verify crc of memory area"
1317 #endif /* CONFIG_CRC32_VERIFY */
1321 #ifdef CONFIG_CMD_MEMINFO
1322 __weak void board_show_dram(ulong size)
1325 print_size(size, "\n");
1328 static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
1329 char * const argv[])
1331 board_show_dram(gd->ram_size);
1338 base, 2, 1, do_mem_base,
1339 "print or set address offset",
1340 "\n - print address offset for memory commands\n"
1341 "base off\n - set address offset for memory commands to 'off'"
1345 loop, 3, 1, do_mem_loop,
1346 "infinite loop on address range",
1347 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1348 "[.b, .w, .l, .q] address number_of_objects"
1350 "[.b, .w, .l] address number_of_objects"
1356 loopw, 4, 1, do_mem_loopw,
1357 "infinite write loop on address range",
1358 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1359 "[.b, .w, .l, .q] address number_of_objects data_to_write"
1361 "[.b, .w, .l] address number_of_objects data_to_write"
1364 #endif /* CONFIG_LOOPW */
1366 #ifdef CONFIG_CMD_MEMTEST
1368 mtest, 5, 1, do_mem_mtest,
1369 "simple RAM read/write test",
1370 "[start [end [pattern [iterations]]]]"
1372 #endif /* CONFIG_CMD_MEMTEST */
1374 #ifdef CONFIG_MX_CYCLIC
1376 mdc, 4, 1, do_mem_mdc,
1377 "memory display cyclic",
1378 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1379 "[.b, .w, .l, .q] address count delay(ms)"
1381 "[.b, .w, .l] address count delay(ms)"
1386 mwc, 4, 1, do_mem_mwc,
1387 "memory write cyclic",
1388 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1389 "[.b, .w, .l, .q] address value delay(ms)"
1391 "[.b, .w, .l] address value delay(ms)"
1394 #endif /* CONFIG_MX_CYCLIC */
1396 #ifdef CONFIG_CMD_MEMINFO
1398 meminfo, 3, 1, do_mem_info,
1399 "display memory information",