3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
32 #ifdef CONFIG_HAS_DATAFLASH
33 #include <dataflash.h>
38 #include <linux/compiler.h>
40 DECLARE_GLOBAL_DATA_PTR;
42 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
43 #define CONFIG_SYS_MEMTEST_SCRATCH 0
46 static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
48 /* Display values from last command.
49 * Memory modify remembered values are different from display memory.
51 static uint dp_last_addr, dp_last_size;
52 static uint dp_last_length = 0x40;
53 static uint mm_last_addr, mm_last_size;
55 static ulong base_address = 0;
60 * md{.b, .w, .l} {addr} {len}
62 #define DISP_LINE_LEN 16
63 static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
66 #if defined(CONFIG_HAS_DATAFLASH)
67 ulong nbytes, linebytes;
72 /* We use the last specified parameters, unless new ones are
77 length = dp_last_length;
82 if ((flag & CMD_FLAG_REPEAT) == 0) {
83 /* New command specified. Check for a size specification.
84 * Defaults to long if no or incorrect specification.
86 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
89 /* Address is specified since argc > 1
91 addr = simple_strtoul(argv[1], NULL, 16);
94 /* If another parameter, it is the length to display.
95 * Length is the number of objects, not number of bytes.
98 length = simple_strtoul(argv[2], NULL, 16);
101 #if defined(CONFIG_HAS_DATAFLASH)
104 * We buffer all read data, so we can make sure data is read only
105 * once, and all accesses are with the specified bus width.
107 nbytes = length * size;
109 char linebuf[DISP_LINE_LEN];
111 linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
113 rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
114 p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
115 print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
123 } while (nbytes > 0);
126 # if defined(CONFIG_BLACKFIN)
127 /* See if we're trying to display L1 inst */
128 if (addr_bfin_on_chip_mem(addr)) {
129 char linebuf[DISP_LINE_LEN];
130 ulong linebytes, nbytes = length * size;
132 linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
133 memcpy(linebuf, (void *)addr, linebytes);
134 print_buffer(addr, linebuf, size, linebytes/size, DISP_LINE_LEN/size);
142 } while (nbytes > 0);
147 ulong bytes = size * length;
148 const void *buf = map_sysmem(addr, bytes);
150 /* Print the lines. */
151 print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
158 dp_last_length = length;
163 static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
165 return mod_mem (cmdtp, 1, flag, argc, argv);
167 static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
169 return mod_mem (cmdtp, 0, flag, argc, argv);
172 static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
174 ulong addr, writeval, count;
179 if ((argc < 3) || (argc > 4))
180 return CMD_RET_USAGE;
182 /* Check for size specification.
184 if ((size = cmd_get_data_size(argv[0], 4)) < 1)
187 /* Address is specified since argc > 1
189 addr = simple_strtoul(argv[1], NULL, 16);
190 addr += base_address;
192 /* Get the value to write.
194 writeval = simple_strtoul(argv[2], NULL, 16);
198 count = simple_strtoul(argv[3], NULL, 16);
203 bytes = size * count;
204 buf = map_sysmem(addr, bytes);
205 while (count-- > 0) {
207 *((ulong *)buf) = (ulong)writeval;
209 *((ushort *)buf) = (ushort)writeval;
211 *((u_char *)buf) = (u_char)writeval;
218 #ifdef CONFIG_MX_CYCLIC
219 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 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;
283 return CMD_RET_USAGE;
285 /* Check for size specification.
287 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
289 type = size == 4 ? "word" : size == 2 ? "halfword" : "byte";
291 addr1 = simple_strtoul(argv[1], NULL, 16);
292 addr1 += base_address;
294 addr2 = simple_strtoul(argv[2], NULL, 16);
295 addr2 += base_address;
297 count = simple_strtoul(argv[3], NULL, 16);
299 #ifdef CONFIG_HAS_DATAFLASH
300 if (addr_dataflash(addr1) | addr_dataflash(addr2)){
301 puts ("Comparison with DataFlash space not supported.\n\r");
306 #ifdef CONFIG_BLACKFIN
307 if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) {
308 puts ("Comparison with L1 instruction memory not supported.\n\r");
313 bytes = size * count;
314 base = buf1 = map_sysmem(addr1, bytes);
315 buf2 = map_sysmem(addr2, bytes);
316 for (ngood = 0; ngood < count; ++ngood) {
319 word1 = *(ulong *)buf1;
320 word2 = *(ulong *)buf2;
321 } else if (size == 2) {
322 word1 = *(ushort *)buf1;
323 word2 = *(ushort *)buf2;
325 word1 = *(u_char *)buf1;
326 word2 = *(u_char *)buf2;
328 if (word1 != word2) {
329 ulong offset = buf1 - base;
331 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
332 type, (ulong)(addr1 + offset), size, word1,
333 type, (ulong)(addr2 + offset), size, word2);
341 /* reset watchdog from time to time */
342 if ((ngood % (64 << 10)) == 0)
348 printf("Total of %ld %s(s) were the same\n", ngood, type);
352 static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
354 ulong addr, dest, count, bytes;
360 return CMD_RET_USAGE;
362 /* Check for size specification.
364 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
367 addr = simple_strtoul(argv[1], NULL, 16);
368 addr += base_address;
370 dest = simple_strtoul(argv[2], NULL, 16);
371 dest += base_address;
373 count = simple_strtoul(argv[3], NULL, 16);
376 puts ("Zero length ???\n");
380 #ifndef CONFIG_SYS_NO_FLASH
381 /* check if we are copying to Flash */
382 if ( (addr2info(dest) != NULL)
383 #ifdef CONFIG_HAS_DATAFLASH
384 && (!addr_dataflash(dest))
389 puts ("Copy to Flash... ");
391 rc = flash_write ((char *)addr, dest, count*size);
401 #ifdef CONFIG_HAS_DATAFLASH
402 /* Check if we are copying from RAM or Flash to DataFlash */
403 if (addr_dataflash(dest) && !addr_dataflash(addr)){
406 puts ("Copy to DataFlash... ");
408 rc = write_dataflash (dest, addr, count*size);
411 dataflash_perror (rc);
418 /* Check if we are copying from DataFlash to RAM */
419 if (addr_dataflash(addr) && !addr_dataflash(dest)
420 #ifndef CONFIG_SYS_NO_FLASH
421 && (addr2info(dest) == NULL)
425 rc = read_dataflash(addr, count * size, (char *) dest);
427 dataflash_perror (rc);
433 if (addr_dataflash(addr) && addr_dataflash(dest)){
434 puts ("Unsupported combination of source/destination.\n\r");
439 #ifdef CONFIG_BLACKFIN
440 /* See if we're copying to/from L1 inst */
441 if (addr_bfin_on_chip_mem(dest) || addr_bfin_on_chip_mem(addr)) {
442 memcpy((void *)dest, (void *)addr, count * size);
447 bytes = size * count;
448 buf = map_sysmem(addr, bytes);
449 src = map_sysmem(addr, bytes);
450 while (count-- > 0) {
452 *((ulong *)buf) = *((ulong *)src);
454 *((ushort *)buf) = *((ushort *)src);
456 *((u_char *)buf) = *((u_char *)src);
460 /* reset watchdog from time to time */
461 if ((count % (64 << 10)) == 0)
467 static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
471 /* Set new base address.
473 base_address = simple_strtoul(argv[1], NULL, 16);
475 /* Print the current base address.
477 printf("Base Address: 0x%08lx\n", base_address);
481 static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
484 ulong addr, length, i, bytes;
486 volatile uint *longp;
487 volatile ushort *shortp;
492 return CMD_RET_USAGE;
495 * Check for a size specification.
496 * Defaults to long if no or incorrect specification.
498 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
501 /* Address is always specified.
503 addr = simple_strtoul(argv[1], NULL, 16);
505 /* Length is the number of objects, not number of bytes.
507 length = simple_strtoul(argv[2], NULL, 16);
509 bytes = size * length;
510 buf = map_sysmem(addr, bytes);
512 /* We want to optimize the loops to run as fast as possible.
513 * If we have only one object, just run infinite loops.
522 shortp = (ushort *)buf;
541 shortp = (ushort *)buf;
557 int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
559 ulong addr, length, i, data, bytes;
561 volatile uint *longp;
562 volatile ushort *shortp;
567 return CMD_RET_USAGE;
570 * Check for a size specification.
571 * Defaults to long if no or incorrect specification.
573 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
576 /* Address is always specified.
578 addr = simple_strtoul(argv[1], NULL, 16);
580 /* Length is the number of objects, not number of bytes.
582 length = simple_strtoul(argv[2], NULL, 16);
585 data = simple_strtoul(argv[3], NULL, 16);
587 bytes = size * length;
588 buf = map_sysmem(addr, bytes);
590 /* We want to optimize the loops to run as fast as possible.
591 * If we have only one object, just run infinite loops.
600 shortp = (ushort *)buf;
619 shortp = (ushort *)buf;
632 #endif /* CONFIG_LOOPW */
634 static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr,
645 vu_long anti_pattern;
647 static const ulong bitpattern[] = {
648 0x00000001, /* single bit */
649 0x00000003, /* two adjacent bits */
650 0x00000007, /* three adjacent bits */
651 0x0000000F, /* four adjacent bits */
652 0x00000005, /* two non-adjacent bits */
653 0x00000015, /* three non-adjacent bits */
654 0x00000055, /* four non-adjacent bits */
655 0xaaaaaaaa, /* alternating 1/0 */
658 num_words = (end_addr - start_addr) / sizeof(vu_long);
661 * Data line test: write a pattern to the first
662 * location, write the 1's complement to a 'parking'
663 * address (changes the state of the data bus so a
664 * floating bus doesn't give a false OK), and then
665 * read the value back. Note that we read it back
666 * into a variable because the next time we read it,
667 * it might be right (been there, tough to explain to
668 * the quality guys why it prints a failure when the
669 * "is" and "should be" are obviously the same in the
672 * Rather than exhaustively testing, we test some
673 * patterns by shifting '1' bits through a field of
674 * '0's and '0' bits through a field of '1's (i.e.
675 * pattern and ~pattern).
678 for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) {
680 for (; val != 0; val <<= 1) {
682 *dummy = ~val; /* clear the test data off the bus */
684 if (readback != val) {
685 printf("FAILURE (data line): "
686 "expected %08lx, actual %08lx\n",
695 if (readback != ~val) {
696 printf("FAILURE (data line): "
697 "Is %08lx, should be %08lx\n",
707 * Based on code whose Original Author and Copyright
708 * information follows: Copyright (c) 1998 by Michael
709 * Barr. This software is placed into the public
710 * domain and may be used for any purpose. However,
711 * this notice must not be changed or removed and no
712 * warranty is either expressed or implied by its
713 * publication or distribution.
719 * Description: Test the address bus wiring in a
720 * memory region by performing a walking
721 * 1's test on the relevant bits of the
722 * address and checking for aliasing.
723 * This test will find single-bit
724 * address failures such as stuck-high,
725 * stuck-low, and shorted pins. The base
726 * address and size of the region are
727 * selected by the caller.
729 * Notes: For best results, the selected base
730 * address should have enough LSB 0's to
731 * guarantee single address bit changes.
732 * For example, to test a 64-Kbyte
733 * region, select a base address on a
734 * 64-Kbyte boundary. Also, select the
735 * region size as a power-of-two if at
738 * Returns: 0 if the test succeeds, 1 if the test fails.
740 pattern = (vu_long) 0xaaaaaaaa;
741 anti_pattern = (vu_long) 0x55555555;
743 debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words);
745 * Write the default pattern at each of the
746 * power-of-two offsets.
748 for (offset = 1; offset < num_words; offset <<= 1)
749 addr[offset] = pattern;
752 * Check for address bits stuck high.
755 addr[test_offset] = anti_pattern;
757 for (offset = 1; offset < num_words; offset <<= 1) {
759 if (temp != pattern) {
760 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
761 " expected 0x%.8lx, actual 0x%.8lx\n",
762 start_addr + offset, pattern, temp);
768 addr[test_offset] = pattern;
772 * Check for addr bits stuck low or shorted.
774 for (test_offset = 1; test_offset < num_words; test_offset <<= 1) {
775 addr[test_offset] = anti_pattern;
777 for (offset = 1; offset < num_words; offset <<= 1) {
779 if ((temp != pattern) && (offset != test_offset)) {
780 printf("\nFAILURE: Address bit stuck low or"
781 " shorted @ 0x%.8lx: expected 0x%.8lx,"
783 start_addr + offset, pattern, temp);
789 addr[test_offset] = pattern;
793 * Description: Test the integrity of a physical
794 * memory device by performing an
795 * increment/decrement test over the
796 * entire region. In the process every
797 * storage bit in the device is tested
798 * as a zero and a one. The base address
799 * and the size of the region are
800 * selected by the caller.
802 * Returns: 0 if the test succeeds, 1 if the test fails.
807 * Fill memory with a known pattern.
809 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
811 addr[offset] = pattern;
815 * Check each location and invert it for the second pass.
817 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
820 if (temp != pattern) {
821 printf("\nFAILURE (read/write) @ 0x%.8lx:"
822 " expected 0x%.8lx, actual 0x%.8lx)\n",
823 start_addr + offset, pattern, temp);
829 anti_pattern = ~pattern;
830 addr[offset] = anti_pattern;
834 * Check each location for the inverted pattern and zero it.
836 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
838 anti_pattern = ~pattern;
840 if (temp != anti_pattern) {
841 printf("\nFAILURE (read/write): @ 0x%.8lx:"
842 " expected 0x%.8lx, actual 0x%.8lx)\n",
843 start_addr + offset, anti_pattern, temp);
854 static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr,
855 vu_long pattern, int iteration)
863 /* Alternate the pattern */
868 * Flip the pattern each time to make lots of zeros and
869 * then, the next time, lots of ones. We decrement
870 * the "negative" patterns and increment the "positive"
871 * patterns to preserve this feature.
873 if (pattern & 0x80000000)
874 pattern = -pattern; /* complement & increment */
878 length = (end_addr - start_addr) / sizeof(ulong);
880 printf("\rPattern %08lX Writing..."
882 "\b\b\b\b\b\b\b\b\b\b",
885 for (addr = buf, val = pattern; addr < end; addr++) {
893 for (addr = buf, val = pattern; addr < end; addr++) {
896 if (readback != val) {
897 ulong offset = addr - buf;
899 printf("\nMem error @ 0x%08X: "
900 "found %08lX, expected %08lX\n",
901 (uint)(uintptr_t)(start_addr + offset),
914 * Perform a memory test. A more complete alternative test can be
915 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
916 * interrupted by ctrl-c or by a failure of one of the sub-tests.
918 static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
922 vu_long *buf, *dummy;
925 ulong errs = 0; /* number of errors, or -1 if interrupted */
928 #if defined(CONFIG_SYS_ALT_MEMTEST)
929 const int alt_test = 1;
931 const int alt_test = 0;
935 start = simple_strtoul(argv[1], NULL, 16);
937 start = CONFIG_SYS_MEMTEST_START;
940 end = simple_strtoul(argv[2], NULL, 16);
942 end = CONFIG_SYS_MEMTEST_END;
945 pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
950 iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16);
954 printf("Testing %08x ... %08x:\n", (uint)start, (uint)end);
955 debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
958 buf = map_sysmem(start, end - start);
959 dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long));
961 !iteration_limit || iteration < iteration_limit;
968 printf("Iteration: %6d\r", iteration + 1);
971 errs = mem_test_alt(buf, start, end, dummy);
973 errs = mem_test_quick(buf, start, end, pattern,
981 * Work-around for eldk-4.2 which gives this warning if we try to
982 * case in the unmap_sysmem() call:
983 * warning: initialization discards qualifiers from pointer target type
986 void *vbuf = (void *)buf;
987 void *vdummy = (void *)dummy;
990 unmap_sysmem(vdummy);
994 /* Memory test was aborted - write a newline to finish off */
998 printf("Tested %d iteration(s) with %lu errors.\n",
1003 return ret; /* not reached */
1010 * mm{.b, .w, .l} {addr}
1011 * nm{.b, .w, .l} {addr}
1014 mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
1021 return CMD_RET_USAGE;
1023 #ifdef CONFIG_BOOT_RETRY_TIME
1024 reset_cmd_timeout(); /* got a good command to get here */
1026 /* We use the last specified parameters, unless new ones are
1029 addr = mm_last_addr;
1030 size = mm_last_size;
1032 if ((flag & CMD_FLAG_REPEAT) == 0) {
1033 /* New command specified. Check for a size specification.
1034 * Defaults to long if no or incorrect specification.
1036 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
1039 /* Address is specified since argc > 1
1041 addr = simple_strtoul(argv[1], NULL, 16);
1042 addr += base_address;
1045 #ifdef CONFIG_HAS_DATAFLASH
1046 if (addr_dataflash(addr)){
1047 puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
1052 #ifdef CONFIG_BLACKFIN
1053 if (addr_bfin_on_chip_mem(addr)) {
1054 puts ("Can't modify L1 instruction in place. Use cp instead.\n\r");
1059 /* Print the address, followed by value. Then accept input for
1060 * the next value. A non-converted value exits.
1063 ptr = map_sysmem(addr, size);
1064 printf("%08lx:", addr);
1066 printf(" %08x", *((uint *)ptr));
1068 printf(" %04x", *((ushort *)ptr));
1070 printf(" %02x", *((u_char *)ptr));
1072 nbytes = readline (" ? ");
1073 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
1074 /* <CR> pressed as only input, don't modify current
1075 * location and move to next. "-" pressed will go back.
1078 addr += nbytes ? -size : size;
1080 #ifdef CONFIG_BOOT_RETRY_TIME
1081 reset_cmd_timeout(); /* good enough to not time out */
1084 #ifdef CONFIG_BOOT_RETRY_TIME
1085 else if (nbytes == -2) {
1086 break; /* timed out, exit the command */
1091 i = simple_strtoul(console_buffer, &endp, 16);
1092 nbytes = endp - console_buffer;
1094 #ifdef CONFIG_BOOT_RETRY_TIME
1095 /* good enough to not time out
1097 reset_cmd_timeout();
1102 *((ushort *)ptr) = i;
1104 *((u_char *)ptr) = i;
1113 mm_last_addr = addr;
1114 mm_last_size = size;
1118 #ifdef CONFIG_CMD_CRC32
1120 static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1127 return CMD_RET_USAGE;
1131 #ifdef CONFIG_HASH_VERIFY
1132 if (strcmp(*av, "-v") == 0) {
1133 flags |= HASH_FLAG_VERIFY;
1139 return hash_command("crc32", flags, cmdtp, flag, ac, av);
1144 /**************************************************/
1146 md, 3, 1, do_mem_md,
1148 "[.b, .w, .l] address [# of objects]"
1153 mm, 2, 1, do_mem_mm,
1154 "memory modify (auto-incrementing address)",
1155 "[.b, .w, .l] address"
1160 nm, 2, 1, do_mem_nm,
1161 "memory modify (constant address)",
1162 "[.b, .w, .l] address"
1166 mw, 4, 1, do_mem_mw,
1167 "memory write (fill)",
1168 "[.b, .w, .l] address value [count]"
1172 cp, 4, 1, do_mem_cp,
1174 "[.b, .w, .l] source target count"
1178 cmp, 4, 1, do_mem_cmp,
1180 "[.b, .w, .l] addr1 addr2 count"
1183 #ifdef CONFIG_CMD_CRC32
1185 #ifndef CONFIG_CRC32_VERIFY
1188 crc32, 4, 1, do_mem_crc,
1189 "checksum calculation",
1190 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1193 #else /* CONFIG_CRC32_VERIFY */
1196 crc32, 5, 1, do_mem_crc,
1197 "checksum calculation",
1198 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1199 "-v address count crc\n - verify crc of memory area"
1202 #endif /* CONFIG_CRC32_VERIFY */
1206 #ifdef CONFIG_CMD_MEMINFO
1207 __weak void board_show_dram(ulong size)
1210 print_size(size, "\n");
1213 static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
1214 char * const argv[])
1216 board_show_dram(gd->ram_size);
1223 base, 2, 1, do_mem_base,
1224 "print or set address offset",
1225 "\n - print address offset for memory commands\n"
1226 "base off\n - set address offset for memory commands to 'off'"
1230 loop, 3, 1, do_mem_loop,
1231 "infinite loop on address range",
1232 "[.b, .w, .l] address number_of_objects"
1237 loopw, 4, 1, do_mem_loopw,
1238 "infinite write loop on address range",
1239 "[.b, .w, .l] address number_of_objects data_to_write"
1241 #endif /* CONFIG_LOOPW */
1244 mtest, 5, 1, do_mem_mtest,
1245 "simple RAM read/write test",
1246 "[start [end [pattern [iterations]]]]"
1249 #ifdef CONFIG_MX_CYCLIC
1251 mdc, 4, 1, do_mem_mdc,
1252 "memory display cyclic",
1253 "[.b, .w, .l] address count delay(ms)"
1257 mwc, 4, 1, do_mem_mwc,
1258 "memory write cyclic",
1259 "[.b, .w, .l] address value delay(ms)"
1261 #endif /* CONFIG_MX_CYCLIC */
1263 #ifdef CONFIG_CMD_MEMINFO
1265 meminfo, 3, 1, do_mem_info,
1266 "display memory information",