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>
37 #include <linux/compiler.h>
39 DECLARE_GLOBAL_DATA_PTR;
41 static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
43 /* Display values from last command.
44 * Memory modify remembered values are different from display memory.
46 static uint dp_last_addr, dp_last_size;
47 static uint dp_last_length = 0x40;
48 static uint mm_last_addr, mm_last_size;
50 static ulong base_address = 0;
55 * md{.b, .w, .l} {addr} {len}
57 #define DISP_LINE_LEN 16
58 static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
61 #if defined(CONFIG_HAS_DATAFLASH)
62 ulong nbytes, linebytes;
67 /* We use the last specified parameters, unless new ones are
72 length = dp_last_length;
77 if ((flag & CMD_FLAG_REPEAT) == 0) {
78 /* New command specified. Check for a size specification.
79 * Defaults to long if no or incorrect specification.
81 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
84 /* Address is specified since argc > 1
86 addr = simple_strtoul(argv[1], NULL, 16);
89 /* If another parameter, it is the length to display.
90 * Length is the number of objects, not number of bytes.
93 length = simple_strtoul(argv[2], NULL, 16);
96 #if defined(CONFIG_HAS_DATAFLASH)
99 * We buffer all read data, so we can make sure data is read only
100 * once, and all accesses are with the specified bus width.
102 nbytes = length * size;
104 char linebuf[DISP_LINE_LEN];
106 linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
108 rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
109 p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
110 print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
118 } while (nbytes > 0);
121 # if defined(CONFIG_BLACKFIN)
122 /* See if we're trying to display L1 inst */
123 if (addr_bfin_on_chip_mem(addr)) {
124 char linebuf[DISP_LINE_LEN];
125 ulong linebytes, nbytes = length * size;
127 linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
128 memcpy(linebuf, (void *)addr, linebytes);
129 print_buffer(addr, linebuf, size, linebytes/size, DISP_LINE_LEN/size);
137 } while (nbytes > 0);
142 ulong bytes = size * length;
143 const void *buf = map_sysmem(addr, bytes);
145 /* Print the lines. */
146 print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
153 dp_last_length = length;
158 static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
160 return mod_mem (cmdtp, 1, flag, argc, argv);
162 static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
164 return mod_mem (cmdtp, 0, flag, argc, argv);
167 static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
169 ulong addr, writeval, count;
174 if ((argc < 3) || (argc > 4))
175 return CMD_RET_USAGE;
177 /* Check for size specification.
179 if ((size = cmd_get_data_size(argv[0], 4)) < 1)
182 /* Address is specified since argc > 1
184 addr = simple_strtoul(argv[1], NULL, 16);
185 addr += base_address;
187 /* Get the value to write.
189 writeval = simple_strtoul(argv[2], NULL, 16);
193 count = simple_strtoul(argv[3], NULL, 16);
198 bytes = size * count;
199 buf = map_sysmem(addr, bytes);
200 while (count-- > 0) {
202 *((ulong *)buf) = (ulong)writeval;
204 *((ushort *)buf) = (ushort)writeval;
206 *((u_char *)buf) = (u_char)writeval;
213 #ifdef CONFIG_MX_CYCLIC
214 int do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
220 return CMD_RET_USAGE;
222 count = simple_strtoul(argv[3], NULL, 10);
225 do_mem_md (NULL, 0, 3, argv);
227 /* delay for <count> ms... */
228 for (i=0; i<count; i++)
231 /* check for ctrl-c to abort... */
241 int do_mem_mwc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
247 return CMD_RET_USAGE;
249 count = simple_strtoul(argv[3], NULL, 10);
252 do_mem_mw (NULL, 0, 3, argv);
254 /* delay for <count> ms... */
255 for (i=0; i<count; i++)
258 /* check for ctrl-c to abort... */
267 #endif /* CONFIG_MX_CYCLIC */
269 static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
271 ulong addr1, addr2, count, ngood, bytes;
275 const void *buf1, *buf2, *base;
278 return CMD_RET_USAGE;
280 /* Check for size specification.
282 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
284 type = size == 4 ? "word" : size == 2 ? "halfword" : "byte";
286 addr1 = simple_strtoul(argv[1], NULL, 16);
287 addr1 += base_address;
289 addr2 = simple_strtoul(argv[2], NULL, 16);
290 addr2 += base_address;
292 count = simple_strtoul(argv[3], NULL, 16);
294 #ifdef CONFIG_HAS_DATAFLASH
295 if (addr_dataflash(addr1) | addr_dataflash(addr2)){
296 puts ("Comparison with DataFlash space not supported.\n\r");
301 #ifdef CONFIG_BLACKFIN
302 if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) {
303 puts ("Comparison with L1 instruction memory not supported.\n\r");
308 bytes = size * count;
309 base = buf1 = map_sysmem(addr1, bytes);
310 buf2 = map_sysmem(addr2, bytes);
311 for (ngood = 0; ngood < count; ++ngood) {
314 word1 = *(ulong *)buf1;
315 word2 = *(ulong *)buf2;
316 } else if (size == 2) {
317 word1 = *(ushort *)buf1;
318 word2 = *(ushort *)buf2;
320 word1 = *(u_char *)buf1;
321 word2 = *(u_char *)buf2;
323 if (word1 != word2) {
324 ulong offset = buf1 - base;
326 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
327 type, (ulong)(addr1 + offset), size, word1,
328 type, (ulong)(addr2 + offset), size, word2);
336 /* reset watchdog from time to time */
337 if ((ngood % (64 << 10)) == 0)
343 printf("Total of %ld %s(s) were the same\n", ngood, type);
347 static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
349 ulong addr, dest, count, bytes;
355 return CMD_RET_USAGE;
357 /* Check for size specification.
359 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
362 addr = simple_strtoul(argv[1], NULL, 16);
363 addr += base_address;
365 dest = simple_strtoul(argv[2], NULL, 16);
366 dest += base_address;
368 count = simple_strtoul(argv[3], NULL, 16);
371 puts ("Zero length ???\n");
375 #ifndef CONFIG_SYS_NO_FLASH
376 /* check if we are copying to Flash */
377 if ( (addr2info(dest) != NULL)
378 #ifdef CONFIG_HAS_DATAFLASH
379 && (!addr_dataflash(dest))
384 puts ("Copy to Flash... ");
386 rc = flash_write ((char *)addr, dest, count*size);
396 #ifdef CONFIG_HAS_DATAFLASH
397 /* Check if we are copying from RAM or Flash to DataFlash */
398 if (addr_dataflash(dest) && !addr_dataflash(addr)){
401 puts ("Copy to DataFlash... ");
403 rc = write_dataflash (dest, addr, count*size);
406 dataflash_perror (rc);
413 /* Check if we are copying from DataFlash to RAM */
414 if (addr_dataflash(addr) && !addr_dataflash(dest)
415 #ifndef CONFIG_SYS_NO_FLASH
416 && (addr2info(dest) == NULL)
420 rc = read_dataflash(addr, count * size, (char *) dest);
422 dataflash_perror (rc);
428 if (addr_dataflash(addr) && addr_dataflash(dest)){
429 puts ("Unsupported combination of source/destination.\n\r");
434 #ifdef CONFIG_BLACKFIN
435 /* See if we're copying to/from L1 inst */
436 if (addr_bfin_on_chip_mem(dest) || addr_bfin_on_chip_mem(addr)) {
437 memcpy((void *)dest, (void *)addr, count * size);
442 bytes = size * count;
443 buf = map_sysmem(addr, bytes);
444 src = map_sysmem(addr, bytes);
445 while (count-- > 0) {
447 *((ulong *)buf) = *((ulong *)src);
449 *((ushort *)buf) = *((ushort *)src);
451 *((u_char *)buf) = *((u_char *)src);
455 /* reset watchdog from time to time */
456 if ((count % (64 << 10)) == 0)
462 static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
466 /* Set new base address.
468 base_address = simple_strtoul(argv[1], NULL, 16);
470 /* Print the current base address.
472 printf("Base Address: 0x%08lx\n", base_address);
476 static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
479 ulong addr, length, i, bytes;
481 volatile uint *longp;
482 volatile ushort *shortp;
487 return CMD_RET_USAGE;
490 * Check for a size specification.
491 * Defaults to long if no or incorrect specification.
493 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
496 /* Address is always specified.
498 addr = simple_strtoul(argv[1], NULL, 16);
500 /* Length is the number of objects, not number of bytes.
502 length = simple_strtoul(argv[2], NULL, 16);
504 bytes = size * length;
505 buf = map_sysmem(addr, bytes);
507 /* We want to optimize the loops to run as fast as possible.
508 * If we have only one object, just run infinite loops.
517 shortp = (ushort *)buf;
536 shortp = (ushort *)buf;
552 int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
554 ulong addr, length, i, data, bytes;
556 volatile uint *longp;
557 volatile ushort *shortp;
562 return CMD_RET_USAGE;
565 * Check for a size specification.
566 * Defaults to long if no or incorrect specification.
568 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
571 /* Address is always specified.
573 addr = simple_strtoul(argv[1], NULL, 16);
575 /* Length is the number of objects, not number of bytes.
577 length = simple_strtoul(argv[2], NULL, 16);
580 data = simple_strtoul(argv[3], NULL, 16);
582 bytes = size * length;
583 buf = map_sysmem(addr, bytes);
585 /* We want to optimize the loops to run as fast as possible.
586 * If we have only one object, just run infinite loops.
595 shortp = (ushort *)buf;
614 shortp = (ushort *)buf;
627 #endif /* CONFIG_LOOPW */
629 static ulong mem_test_alt(vu_long *start, vu_long *end)
640 vu_long anti_pattern;
642 #if defined(CONFIG_SYS_MEMTEST_SCRATCH)
643 vu_long *dummy = (vu_long *)CONFIG_SYS_MEMTEST_SCRATCH;
645 vu_long *dummy = NULL; /* yes, this is address 0x0, not NULL */
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 */
659 * Data line test: write a pattern to the first
660 * location, write the 1's complement to a 'parking'
661 * address (changes the state of the data bus so a
662 * floating bus doesn't give a false OK), and then
663 * read the value back. Note that we read it back
664 * into a variable because the next time we read it,
665 * it might be right (been there, tough to explain to
666 * the quality guys why it prints a failure when the
667 * "is" and "should be" are obviously the same in the
670 * Rather than exhaustively testing, we test some
671 * patterns by shifting '1' bits through a field of
672 * '0's and '0' bits through a field of '1's (i.e.
673 * pattern and ~pattern).
676 for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) {
678 for (; val != 0; val <<= 1) {
680 *dummy = ~val; /* clear the test data off the bus */
682 if (readback != val) {
683 printf("FAILURE (data line): "
684 "expected %08lx, actual %08lx\n",
693 if (readback != ~val) {
694 printf("FAILURE (data line): "
695 "Is %08lx, should be %08lx\n",
705 * Based on code whose Original Author and Copyright
706 * information follows: Copyright (c) 1998 by Michael
707 * Barr. This software is placed into the public
708 * domain and may be used for any purpose. However,
709 * this notice must not be changed or removed and no
710 * warranty is either expressed or implied by its
711 * publication or distribution.
717 * Description: Test the address bus wiring in a
718 * memory region by performing a walking
719 * 1's test on the relevant bits of the
720 * address and checking for aliasing.
721 * This test will find single-bit
722 * address failures such as stuck-high,
723 * stuck-low, and shorted pins. The base
724 * address and size of the region are
725 * selected by the caller.
727 * Notes: For best results, the selected base
728 * address should have enough LSB 0's to
729 * guarantee single address bit changes.
730 * For example, to test a 64-Kbyte
731 * region, select a base address on a
732 * 64-Kbyte boundary. Also, select the
733 * region size as a power-of-two if at
736 * Returns: 0 if the test succeeds, 1 if the test fails.
738 len = ((ulong)end - (ulong)start)/sizeof(vu_long);
739 pattern = (vu_long) 0xaaaaaaaa;
740 anti_pattern = (vu_long) 0x55555555;
742 debug("%s:%d: length = 0x%.8lx\n",
743 __func__, __LINE__, len);
745 * Write the default pattern at each of the
746 * power-of-two offsets.
748 for (offset = 1; offset < len; offset <<= 1)
749 start[offset] = pattern;
752 * Check for address bits stuck high.
755 start[test_offset] = anti_pattern;
757 for (offset = 1; offset < len; offset <<= 1) {
758 temp = start[offset];
759 if (temp != pattern) {
760 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
761 " expected 0x%.8lx, actual 0x%.8lx\n",
762 (ulong)&start[offset], pattern, temp);
768 start[test_offset] = pattern;
772 * Check for addr bits stuck low or shorted.
774 for (test_offset = 1; test_offset < len; test_offset <<= 1) {
775 start[test_offset] = anti_pattern;
777 for (offset = 1; offset < len; offset <<= 1) {
778 temp = start[offset];
779 if ((temp != pattern) && (offset != test_offset)) {
780 printf("\nFAILURE: Address bit stuck low or"
781 " shorted @ 0x%.8lx: expected 0x%.8lx,"
783 (ulong)&start[offset], pattern, temp);
789 start[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.
804 num_words = ((ulong)end - (ulong)start)/sizeof(vu_long) + 1;
807 * Fill memory with a known pattern.
809 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
811 start[offset] = pattern;
815 * Check each location and invert it for the second pass.
817 for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
819 temp = start[offset];
820 if (temp != pattern) {
821 printf("\nFAILURE (read/write) @ 0x%.8lx:"
822 " expected 0x%.8lx, actual 0x%.8lx)\n",
823 (ulong)&start[offset], pattern, temp);
829 anti_pattern = ~pattern;
830 start[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;
839 temp = start[offset];
840 if (temp != anti_pattern) {
841 printf("\nFAILURE (read/write): @ 0x%.8lx:"
842 " expected 0x%.8lx, actual 0x%.8lx)\n",
843 (ulong)&start[offset], anti_pattern, temp);
854 static ulong mem_test_quick(vu_long *start, vu_long *end, vu_long pattern,
862 /* Alternate the pattern */
867 * Flip the pattern each time to make lots of zeros and
868 * then, the next time, lots of ones. We decrement
869 * the "negative" patterns and increment the "positive"
870 * patterns to preserve this feature.
872 if (pattern & 0x80000000)
873 pattern = -pattern; /* complement & increment */
877 printf("\rPattern %08lX Writing..."
879 "\b\b\b\b\b\b\b\b\b\b",
882 for (addr = start, val = pattern; addr < end; addr++) {
890 for (addr = start, val = pattern; addr < end; addr++) {
893 if (readback != val) {
894 printf("\nMem error @ 0x%08X: "
895 "found %08lX, expected %08lX\n",
896 (uint)(uintptr_t)addr, readback, val);
908 * Perform a memory test. A more complete alternative test can be
909 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
910 * interrupted by ctrl-c or by a failure of one of the sub-tests.
912 static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
915 vu_long *start, *end;
918 ulong errs = 0; /* number of errors, or -1 if interrupted */
921 #if defined(CONFIG_SYS_ALT_MEMTEST)
922 const int alt_test = 1;
924 const int alt_test = 0;
928 start = (ulong *)simple_strtoul(argv[1], NULL, 16);
930 start = (ulong *)CONFIG_SYS_MEMTEST_START;
933 end = (ulong *)simple_strtoul(argv[2], NULL, 16);
935 end = (ulong *)(CONFIG_SYS_MEMTEST_END);
938 pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
943 iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16);
947 printf("Testing %08x ... %08x:\n", (uint)(uintptr_t)start,
948 (uint)(uintptr_t)end);
949 debug("%s:%d: start 0x%p end 0x%p\n",
950 __func__, __LINE__, start, end);
953 !iteration_limit || iteration < iteration_limit;
960 printf("Iteration: %6d\r", iteration + 1);
963 errs = mem_test_alt(start, end);
965 errs = mem_test_quick(start, end, pattern, iteration);
969 /* Memory test was aborted - write a newline to finish off */
973 printf("Tested %d iteration(s) with %lu errors.\n",
978 return ret; /* not reached */
985 * mm{.b, .w, .l} {addr}
986 * nm{.b, .w, .l} {addr}
989 mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
996 return CMD_RET_USAGE;
998 #ifdef CONFIG_BOOT_RETRY_TIME
999 reset_cmd_timeout(); /* got a good command to get here */
1001 /* We use the last specified parameters, unless new ones are
1004 addr = mm_last_addr;
1005 size = mm_last_size;
1007 if ((flag & CMD_FLAG_REPEAT) == 0) {
1008 /* New command specified. Check for a size specification.
1009 * Defaults to long if no or incorrect specification.
1011 if ((size = cmd_get_data_size(argv[0], 4)) < 0)
1014 /* Address is specified since argc > 1
1016 addr = simple_strtoul(argv[1], NULL, 16);
1017 addr += base_address;
1020 #ifdef CONFIG_HAS_DATAFLASH
1021 if (addr_dataflash(addr)){
1022 puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
1027 #ifdef CONFIG_BLACKFIN
1028 if (addr_bfin_on_chip_mem(addr)) {
1029 puts ("Can't modify L1 instruction in place. Use cp instead.\n\r");
1034 /* Print the address, followed by value. Then accept input for
1035 * the next value. A non-converted value exits.
1038 ptr = map_sysmem(addr, size);
1039 printf("%08lx:", addr);
1041 printf(" %08x", *((uint *)ptr));
1043 printf(" %04x", *((ushort *)ptr));
1045 printf(" %02x", *((u_char *)ptr));
1047 nbytes = readline (" ? ");
1048 if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
1049 /* <CR> pressed as only input, don't modify current
1050 * location and move to next. "-" pressed will go back.
1053 addr += nbytes ? -size : size;
1055 #ifdef CONFIG_BOOT_RETRY_TIME
1056 reset_cmd_timeout(); /* good enough to not time out */
1059 #ifdef CONFIG_BOOT_RETRY_TIME
1060 else if (nbytes == -2) {
1061 break; /* timed out, exit the command */
1066 i = simple_strtoul(console_buffer, &endp, 16);
1067 nbytes = endp - console_buffer;
1069 #ifdef CONFIG_BOOT_RETRY_TIME
1070 /* good enough to not time out
1072 reset_cmd_timeout();
1077 *((ushort *)ptr) = i;
1079 *((u_char *)ptr) = i;
1088 mm_last_addr = addr;
1089 mm_last_size = size;
1093 #ifdef CONFIG_CMD_CRC32
1095 #ifndef CONFIG_CRC32_VERIFY
1097 static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1104 return CMD_RET_USAGE;
1106 addr = simple_strtoul (argv[1], NULL, 16);
1107 addr += base_address;
1109 length = simple_strtoul (argv[2], NULL, 16);
1111 crc = crc32_wd (0, (const uchar *) addr, length, CHUNKSZ_CRC32);
1113 printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
1114 addr, addr + length - 1, crc);
1117 ptr = (ulong *) simple_strtoul (argv[3], NULL, 16);
1124 #else /* CONFIG_CRC32_VERIFY */
1126 int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1138 return CMD_RET_USAGE;
1143 if (strcmp(*av, "-v") == 0) {
1152 addr = simple_strtoul(*av++, NULL, 16);
1153 addr += base_address;
1154 length = simple_strtoul(*av++, NULL, 16);
1156 crc = crc32_wd (0, (const uchar *) addr, length, CHUNKSZ_CRC32);
1159 printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
1160 addr, addr + length - 1, crc);
1162 ptr = (ulong *) simple_strtoul (*av++, NULL, 16);
1166 vcrc = simple_strtoul(*av++, NULL, 16);
1168 printf ("CRC32 for %08lx ... %08lx ==> %08lx != %08lx ** ERROR **\n",
1169 addr, addr + length - 1, crc, vcrc);
1177 #endif /* CONFIG_CRC32_VERIFY */
1181 /**************************************************/
1183 md, 3, 1, do_mem_md,
1185 "[.b, .w, .l] address [# of objects]"
1190 mm, 2, 1, do_mem_mm,
1191 "memory modify (auto-incrementing address)",
1192 "[.b, .w, .l] address"
1197 nm, 2, 1, do_mem_nm,
1198 "memory modify (constant address)",
1199 "[.b, .w, .l] address"
1203 mw, 4, 1, do_mem_mw,
1204 "memory write (fill)",
1205 "[.b, .w, .l] address value [count]"
1209 cp, 4, 1, do_mem_cp,
1211 "[.b, .w, .l] source target count"
1215 cmp, 4, 1, do_mem_cmp,
1217 "[.b, .w, .l] addr1 addr2 count"
1220 #ifdef CONFIG_CMD_CRC32
1222 #ifndef CONFIG_CRC32_VERIFY
1225 crc32, 4, 1, do_mem_crc,
1226 "checksum calculation",
1227 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1230 #else /* CONFIG_CRC32_VERIFY */
1233 crc32, 5, 1, do_mem_crc,
1234 "checksum calculation",
1235 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1236 "-v address count crc\n - verify crc of memory area"
1239 #endif /* CONFIG_CRC32_VERIFY */
1243 #ifdef CONFIG_CMD_MEMINFO
1244 __weak void board_show_dram(ulong size)
1247 print_size(size, "\n");
1250 static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
1251 char * const argv[])
1253 board_show_dram(gd->ram_size);
1260 base, 2, 1, do_mem_base,
1261 "print or set address offset",
1262 "\n - print address offset for memory commands\n"
1263 "base off\n - set address offset for memory commands to 'off'"
1267 loop, 3, 1, do_mem_loop,
1268 "infinite loop on address range",
1269 "[.b, .w, .l] address number_of_objects"
1274 loopw, 4, 1, do_mem_loopw,
1275 "infinite write loop on address range",
1276 "[.b, .w, .l] address number_of_objects data_to_write"
1278 #endif /* CONFIG_LOOPW */
1281 mtest, 5, 1, do_mem_mtest,
1282 "simple RAM read/write test",
1283 "[start [end [pattern [iterations]]]]"
1286 #ifdef CONFIG_MX_CYCLIC
1288 mdc, 4, 1, do_mem_mdc,
1289 "memory display cyclic",
1290 "[.b, .w, .l] address count delay(ms)"
1294 mwc, 4, 1, do_mem_mwc,
1295 "memory write cyclic",
1296 "[.b, .w, .l] address value delay(ms)"
1298 #endif /* CONFIG_MX_CYCLIC */
1300 #ifdef CONFIG_CMD_MEMINFO
1302 meminfo, 3, 1, do_mem_info,
1303 "display memory information",