1 // SPDX-License-Identifier: GPL-2.0+
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
10 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
15 #include <bootretry.h>
24 #include <linux/compiler.h>
26 DECLARE_GLOBAL_DATA_PTR
;
28 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
29 #define CONFIG_SYS_MEMTEST_SCRATCH 0
32 static int mod_mem(cmd_tbl_t
*, int, int, int, char * const []);
34 /* Display values from last command.
35 * Memory modify remembered values are different from display memory.
37 static ulong dp_last_addr
, dp_last_size
;
38 static ulong dp_last_length
= 0x40;
39 static ulong mm_last_addr
, mm_last_size
;
41 static ulong base_address
= 0;
46 * md{.b, .w, .l, .q} {addr} {len}
48 #define DISP_LINE_LEN 16
49 static int do_mem_md(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
51 ulong addr
, length
, bytes
;
56 /* We use the last specified parameters, unless new ones are
61 length
= dp_last_length
;
66 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
67 /* New command specified. Check for a size specification.
68 * Defaults to long if no or incorrect specification.
70 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
73 /* Address is specified since argc > 1
75 addr
= simple_strtoul(argv
[1], NULL
, 16);
78 /* If another parameter, it is the length to display.
79 * Length is the number of objects, not number of bytes.
82 length
= simple_strtoul(argv
[2], NULL
, 16);
85 bytes
= size
* length
;
86 buf
= map_sysmem(addr
, bytes
);
88 /* Print the lines. */
89 print_buffer(addr
, buf
, size
, length
, DISP_LINE_LEN
/ size
);
94 dp_last_length
= length
;
99 static int do_mem_mm(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
101 return mod_mem (cmdtp
, 1, flag
, argc
, argv
);
103 static int do_mem_nm(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
105 return mod_mem (cmdtp
, 0, flag
, argc
, argv
);
108 static int do_mem_mw(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
110 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
120 if ((argc
< 3) || (argc
> 4))
121 return CMD_RET_USAGE
;
123 /* Check for size specification.
125 if ((size
= cmd_get_data_size(argv
[0], 4)) < 1)
128 /* Address is specified since argc > 1
130 addr
= simple_strtoul(argv
[1], NULL
, 16);
131 addr
+= base_address
;
133 /* Get the value to write.
135 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
136 writeval
= simple_strtoull(argv
[2], NULL
, 16);
138 writeval
= simple_strtoul(argv
[2], NULL
, 16);
143 count
= simple_strtoul(argv
[3], NULL
, 16);
148 bytes
= size
* count
;
149 start
= map_sysmem(addr
, bytes
);
151 while (count
-- > 0) {
153 *((u32
*)buf
) = (u32
)writeval
;
154 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
156 *((u64
*)buf
) = (u64
)writeval
;
159 *((u16
*)buf
) = (u16
)writeval
;
161 *((u8
*)buf
) = (u8
)writeval
;
168 #ifdef CONFIG_MX_CYCLIC
169 static int do_mem_mdc(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
175 return CMD_RET_USAGE
;
177 count
= simple_strtoul(argv
[3], NULL
, 10);
180 do_mem_md (NULL
, 0, 3, argv
);
182 /* delay for <count> ms... */
183 for (i
=0; i
<count
; i
++)
186 /* check for ctrl-c to abort... */
196 static int do_mem_mwc(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
202 return CMD_RET_USAGE
;
204 count
= simple_strtoul(argv
[3], NULL
, 10);
207 do_mem_mw (NULL
, 0, 3, argv
);
209 /* delay for <count> ms... */
210 for (i
=0; i
<count
; i
++)
213 /* check for ctrl-c to abort... */
222 #endif /* CONFIG_MX_CYCLIC */
224 static int do_mem_cmp(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
226 ulong addr1
, addr2
, count
, ngood
, bytes
;
230 const void *buf1
, *buf2
, *base
;
231 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
238 return CMD_RET_USAGE
;
240 /* Check for size specification.
242 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
244 type
= size
== 8 ? "double word" :
246 size
== 2 ? "halfword" : "byte";
248 addr1
= simple_strtoul(argv
[1], NULL
, 16);
249 addr1
+= base_address
;
251 addr2
= simple_strtoul(argv
[2], NULL
, 16);
252 addr2
+= base_address
;
254 count
= simple_strtoul(argv
[3], NULL
, 16);
256 bytes
= size
* count
;
257 base
= buf1
= map_sysmem(addr1
, bytes
);
258 buf2
= map_sysmem(addr2
, bytes
);
259 for (ngood
= 0; ngood
< count
; ++ngood
) {
261 word1
= *(u32
*)buf1
;
262 word2
= *(u32
*)buf2
;
263 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
264 } else if (size
== 8) {
265 word1
= *(u64
*)buf1
;
266 word2
= *(u64
*)buf2
;
268 } else if (size
== 2) {
269 word1
= *(u16
*)buf1
;
270 word2
= *(u16
*)buf2
;
275 if (word1
!= word2
) {
276 ulong offset
= buf1
- base
;
277 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
278 printf("%s at 0x%p (%#0*"PRIx64
") != %s at 0x%p (%#0*"
280 type
, (void *)(addr1
+ offset
), size
, word1
,
281 type
, (void *)(addr2
+ offset
), size
, word2
);
283 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
284 type
, (ulong
)(addr1
+ offset
), size
, word1
,
285 type
, (ulong
)(addr2
+ offset
), size
, word2
);
294 /* reset watchdog from time to time */
295 if ((ngood
% (64 << 10)) == 0)
301 printf("Total of %ld %s(s) were the same\n", ngood
, type
);
305 static int do_mem_cp(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
307 ulong addr
, dest
, count
;
311 return CMD_RET_USAGE
;
313 /* Check for size specification.
315 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
318 addr
= simple_strtoul(argv
[1], NULL
, 16);
319 addr
+= base_address
;
321 dest
= simple_strtoul(argv
[2], NULL
, 16);
322 dest
+= base_address
;
324 count
= simple_strtoul(argv
[3], NULL
, 16);
327 puts ("Zero length ???\n");
331 #ifdef CONFIG_MTD_NOR_FLASH
332 /* check if we are copying to Flash */
333 if (addr2info(dest
) != NULL
) {
336 puts ("Copy to Flash... ");
338 rc
= flash_write ((char *)addr
, dest
, count
*size
);
348 memcpy((void *)dest
, (void *)addr
, count
* size
);
353 static int do_mem_base(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
357 /* Set new base address.
359 base_address
= simple_strtoul(argv
[1], NULL
, 16);
361 /* Print the current base address.
363 printf("Base Address: 0x%08lx\n", base_address
);
367 static int do_mem_loop(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
370 ulong addr
, length
, i
, bytes
;
372 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
376 volatile u16
*shortp
;
381 return CMD_RET_USAGE
;
384 * Check for a size specification.
385 * Defaults to long if no or incorrect specification.
387 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
390 /* Address is always specified.
392 addr
= simple_strtoul(argv
[1], NULL
, 16);
394 /* Length is the number of objects, not number of bytes.
396 length
= simple_strtoul(argv
[2], NULL
, 16);
398 bytes
= size
* length
;
399 buf
= map_sysmem(addr
, bytes
);
401 /* We want to optimize the loops to run as fast as possible.
402 * If we have only one object, just run infinite loops.
405 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
427 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
465 static int do_mem_loopw(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
468 ulong addr
, length
, i
, bytes
;
470 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
477 volatile u16
*shortp
;
482 return CMD_RET_USAGE
;
485 * Check for a size specification.
486 * Defaults to long if no or incorrect specification.
488 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
491 /* Address is always specified.
493 addr
= simple_strtoul(argv
[1], NULL
, 16);
495 /* Length is the number of objects, not number of bytes.
497 length
= simple_strtoul(argv
[2], NULL
, 16);
500 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
501 data
= simple_strtoull(argv
[3], NULL
, 16);
503 data
= simple_strtoul(argv
[3], NULL
, 16);
506 bytes
= size
* length
;
507 buf
= map_sysmem(addr
, bytes
);
509 /* We want to optimize the loops to run as fast as possible.
510 * If we have only one object, just run infinite loops.
513 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
535 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
568 #endif /* CONFIG_LOOPW */
570 #ifdef CONFIG_CMD_MEMTEST
571 static ulong
mem_test_alt(vu_long
*buf
, ulong start_addr
, ulong end_addr
,
582 vu_long anti_pattern
;
584 static const ulong bitpattern
[] = {
585 0x00000001, /* single bit */
586 0x00000003, /* two adjacent bits */
587 0x00000007, /* three adjacent bits */
588 0x0000000F, /* four adjacent bits */
589 0x00000005, /* two non-adjacent bits */
590 0x00000015, /* three non-adjacent bits */
591 0x00000055, /* four non-adjacent bits */
592 0xaaaaaaaa, /* alternating 1/0 */
595 num_words
= (end_addr
- start_addr
) / sizeof(vu_long
);
598 * Data line test: write a pattern to the first
599 * location, write the 1's complement to a 'parking'
600 * address (changes the state of the data bus so a
601 * floating bus doesn't give a false OK), and then
602 * read the value back. Note that we read it back
603 * into a variable because the next time we read it,
604 * it might be right (been there, tough to explain to
605 * the quality guys why it prints a failure when the
606 * "is" and "should be" are obviously the same in the
609 * Rather than exhaustively testing, we test some
610 * patterns by shifting '1' bits through a field of
611 * '0's and '0' bits through a field of '1's (i.e.
612 * pattern and ~pattern).
615 for (j
= 0; j
< sizeof(bitpattern
) / sizeof(bitpattern
[0]); j
++) {
617 for (; val
!= 0; val
<<= 1) {
619 *dummy
= ~val
; /* clear the test data off the bus */
621 if (readback
!= val
) {
622 printf("FAILURE (data line): "
623 "expected %08lx, actual %08lx\n",
632 if (readback
!= ~val
) {
633 printf("FAILURE (data line): "
634 "Is %08lx, should be %08lx\n",
644 * Based on code whose Original Author and Copyright
645 * information follows: Copyright (c) 1998 by Michael
646 * Barr. This software is placed into the public
647 * domain and may be used for any purpose. However,
648 * this notice must not be changed or removed and no
649 * warranty is either expressed or implied by its
650 * publication or distribution.
656 * Description: Test the address bus wiring in a
657 * memory region by performing a walking
658 * 1's test on the relevant bits of the
659 * address and checking for aliasing.
660 * This test will find single-bit
661 * address failures such as stuck-high,
662 * stuck-low, and shorted pins. The base
663 * address and size of the region are
664 * selected by the caller.
666 * Notes: For best results, the selected base
667 * address should have enough LSB 0's to
668 * guarantee single address bit changes.
669 * For example, to test a 64-Kbyte
670 * region, select a base address on a
671 * 64-Kbyte boundary. Also, select the
672 * region size as a power-of-two if at
675 * Returns: 0 if the test succeeds, 1 if the test fails.
677 pattern
= (vu_long
) 0xaaaaaaaa;
678 anti_pattern
= (vu_long
) 0x55555555;
680 debug("%s:%d: length = 0x%.8lx\n", __func__
, __LINE__
, num_words
);
682 * Write the default pattern at each of the
683 * power-of-two offsets.
685 for (offset
= 1; offset
< num_words
; offset
<<= 1)
686 addr
[offset
] = pattern
;
689 * Check for address bits stuck high.
692 addr
[test_offset
] = anti_pattern
;
694 for (offset
= 1; offset
< num_words
; offset
<<= 1) {
696 if (temp
!= pattern
) {
697 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
698 " expected 0x%.8lx, actual 0x%.8lx\n",
699 start_addr
+ offset
*sizeof(vu_long
),
706 addr
[test_offset
] = pattern
;
710 * Check for addr bits stuck low or shorted.
712 for (test_offset
= 1; test_offset
< num_words
; test_offset
<<= 1) {
713 addr
[test_offset
] = anti_pattern
;
715 for (offset
= 1; offset
< num_words
; offset
<<= 1) {
717 if ((temp
!= pattern
) && (offset
!= test_offset
)) {
718 printf("\nFAILURE: Address bit stuck low or"
719 " shorted @ 0x%.8lx: expected 0x%.8lx,"
721 start_addr
+ offset
*sizeof(vu_long
),
728 addr
[test_offset
] = pattern
;
732 * Description: Test the integrity of a physical
733 * memory device by performing an
734 * increment/decrement test over the
735 * entire region. In the process every
736 * storage bit in the device is tested
737 * as a zero and a one. The base address
738 * and the size of the region are
739 * selected by the caller.
741 * Returns: 0 if the test succeeds, 1 if the test fails.
746 * Fill memory with a known pattern.
748 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
750 addr
[offset
] = pattern
;
754 * Check each location and invert it for the second pass.
756 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
759 if (temp
!= pattern
) {
760 printf("\nFAILURE (read/write) @ 0x%.8lx:"
761 " expected 0x%.8lx, actual 0x%.8lx)\n",
762 start_addr
+ offset
*sizeof(vu_long
),
769 anti_pattern
= ~pattern
;
770 addr
[offset
] = anti_pattern
;
774 * Check each location for the inverted pattern and zero it.
776 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
778 anti_pattern
= ~pattern
;
780 if (temp
!= anti_pattern
) {
781 printf("\nFAILURE (read/write): @ 0x%.8lx:"
782 " expected 0x%.8lx, actual 0x%.8lx)\n",
783 start_addr
+ offset
*sizeof(vu_long
),
795 static ulong
mem_test_quick(vu_long
*buf
, ulong start_addr
, ulong end_addr
,
796 vu_long pattern
, int iteration
)
804 /* Alternate the pattern */
809 * Flip the pattern each time to make lots of zeros and
810 * then, the next time, lots of ones. We decrement
811 * the "negative" patterns and increment the "positive"
812 * patterns to preserve this feature.
814 if (pattern
& 0x80000000)
815 pattern
= -pattern
; /* complement & increment */
819 length
= (end_addr
- start_addr
) / sizeof(ulong
);
821 printf("\rPattern %08lX Writing..."
823 "\b\b\b\b\b\b\b\b\b\b",
826 for (addr
= buf
, val
= pattern
; addr
< end
; addr
++) {
834 for (addr
= buf
, val
= pattern
; addr
< end
; addr
++) {
837 if (readback
!= val
) {
838 ulong offset
= addr
- buf
;
840 printf("\nMem error @ 0x%08X: "
841 "found %08lX, expected %08lX\n",
842 (uint
)(uintptr_t)(start_addr
+ offset
*sizeof(vu_long
)),
855 * Perform a memory test. A more complete alternative test can be
856 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
857 * interrupted by ctrl-c or by a failure of one of the sub-tests.
859 static int do_mem_mtest(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
863 vu_long
*buf
, *dummy
;
864 ulong iteration_limit
= 0;
866 ulong errs
= 0; /* number of errors, or -1 if interrupted */
869 #if defined(CONFIG_SYS_ALT_MEMTEST)
870 const int alt_test
= 1;
872 const int alt_test
= 0;
875 start
= CONFIG_SYS_MEMTEST_START
;
876 end
= CONFIG_SYS_MEMTEST_END
;
879 if (strict_strtoul(argv
[1], 16, &start
) < 0)
880 return CMD_RET_USAGE
;
883 if (strict_strtoul(argv
[2], 16, &end
) < 0)
884 return CMD_RET_USAGE
;
887 if (strict_strtoul(argv
[3], 16, &pattern
) < 0)
888 return CMD_RET_USAGE
;
891 if (strict_strtoul(argv
[4], 16, &iteration_limit
) < 0)
892 return CMD_RET_USAGE
;
895 printf("Refusing to do empty test\n");
899 printf("Testing %08lx ... %08lx:\n", start
, end
);
900 debug("%s:%d: start %#08lx end %#08lx\n", __func__
, __LINE__
,
903 buf
= map_sysmem(start
, end
- start
);
904 dummy
= map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH
, sizeof(vu_long
));
906 !iteration_limit
|| iteration
< iteration_limit
;
913 printf("Iteration: %6d\r", iteration
+ 1);
916 errs
= mem_test_alt(buf
, start
, end
, dummy
);
918 errs
= mem_test_quick(buf
, start
, end
, pattern
,
926 * Work-around for eldk-4.2 which gives this warning if we try to
927 * case in the unmap_sysmem() call:
928 * warning: initialization discards qualifiers from pointer target type
931 void *vbuf
= (void *)buf
;
932 void *vdummy
= (void *)dummy
;
935 unmap_sysmem(vdummy
);
939 /* Memory test was aborted - write a newline to finish off */
943 printf("Tested %d iteration(s) with %lu errors.\n",
950 #endif /* CONFIG_CMD_MEMTEST */
955 * mm{.b, .w, .l, .q} {addr}
956 * nm{.b, .w, .l, .q} {addr}
959 mod_mem(cmd_tbl_t
*cmdtp
, int incrflag
, int flag
, int argc
, char * const argv
[])
962 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
971 return CMD_RET_USAGE
;
973 bootretry_reset_cmd_timeout(); /* got a good command to get here */
974 /* We use the last specified parameters, unless new ones are
980 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
981 /* New command specified. Check for a size specification.
982 * Defaults to long if no or incorrect specification.
984 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
987 /* Address is specified since argc > 1
989 addr
= simple_strtoul(argv
[1], NULL
, 16);
990 addr
+= base_address
;
993 /* Print the address, followed by value. Then accept input for
994 * the next value. A non-converted value exits.
997 ptr
= map_sysmem(addr
, size
);
998 printf("%08lx:", addr
);
1000 printf(" %08x", *((u32
*)ptr
));
1001 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1003 printf(" %016" PRIx64
, *((u64
*)ptr
));
1006 printf(" %04x", *((u16
*)ptr
));
1008 printf(" %02x", *((u8
*)ptr
));
1010 nbytes
= cli_readline(" ? ");
1011 if (nbytes
== 0 || (nbytes
== 1 && console_buffer
[0] == '-')) {
1012 /* <CR> pressed as only input, don't modify current
1013 * location and move to next. "-" pressed will go back.
1016 addr
+= nbytes
? -size
: size
;
1018 /* good enough to not time out */
1019 bootretry_reset_cmd_timeout();
1021 #ifdef CONFIG_BOOT_RETRY_TIME
1022 else if (nbytes
== -2) {
1023 break; /* timed out, exit the command */
1028 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1029 i
= simple_strtoull(console_buffer
, &endp
, 16);
1031 i
= simple_strtoul(console_buffer
, &endp
, 16);
1033 nbytes
= endp
- console_buffer
;
1035 /* good enough to not time out
1037 bootretry_reset_cmd_timeout();
1040 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1056 mm_last_addr
= addr
;
1057 mm_last_size
= size
;
1061 #ifdef CONFIG_CMD_CRC32
1063 static int do_mem_crc(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
1070 return CMD_RET_USAGE
;
1074 #ifdef CONFIG_CRC32_VERIFY
1075 if (strcmp(*av
, "-v") == 0) {
1076 flags
|= HASH_FLAG_VERIFY
| HASH_FLAG_ENV
;
1082 return hash_command("crc32", flags
, cmdtp
, flag
, ac
, av
);
1087 /**************************************************/
1089 md
, 3, 1, do_mem_md
,
1091 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1092 "[.b, .w, .l, .q] address [# of objects]"
1094 "[.b, .w, .l] address [# of objects]"
1100 mm
, 2, 1, do_mem_mm
,
1101 "memory modify (auto-incrementing address)",
1102 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1103 "[.b, .w, .l, .q] address"
1105 "[.b, .w, .l] address"
1111 nm
, 2, 1, do_mem_nm
,
1112 "memory modify (constant address)",
1113 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1114 "[.b, .w, .l, .q] address"
1116 "[.b, .w, .l] address"
1121 mw
, 4, 1, do_mem_mw
,
1122 "memory write (fill)",
1123 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1124 "[.b, .w, .l, .q] address value [count]"
1126 "[.b, .w, .l] address value [count]"
1131 cp
, 4, 1, do_mem_cp
,
1133 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1134 "[.b, .w, .l, .q] source target count"
1136 "[.b, .w, .l] source target count"
1141 cmp
, 4, 1, do_mem_cmp
,
1143 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1144 "[.b, .w, .l, .q] addr1 addr2 count"
1146 "[.b, .w, .l] addr1 addr2 count"
1150 #ifdef CONFIG_CMD_CRC32
1152 #ifndef CONFIG_CRC32_VERIFY
1155 crc32
, 4, 1, do_mem_crc
,
1156 "checksum calculation",
1157 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1160 #else /* CONFIG_CRC32_VERIFY */
1163 crc32
, 5, 1, do_mem_crc
,
1164 "checksum calculation",
1165 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1166 "-v address count crc\n - verify crc of memory area"
1169 #endif /* CONFIG_CRC32_VERIFY */
1173 #ifdef CONFIG_CMD_MEMINFO
1174 __weak
void board_show_dram(phys_size_t size
)
1177 print_size(size
, "\n");
1180 static int do_mem_info(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
1181 char * const argv
[])
1183 board_show_dram(gd
->ram_size
);
1190 base
, 2, 1, do_mem_base
,
1191 "print or set address offset",
1192 "\n - print address offset for memory commands\n"
1193 "base off\n - set address offset for memory commands to 'off'"
1197 loop
, 3, 1, do_mem_loop
,
1198 "infinite loop on address range",
1199 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1200 "[.b, .w, .l, .q] address number_of_objects"
1202 "[.b, .w, .l] address number_of_objects"
1208 loopw
, 4, 1, do_mem_loopw
,
1209 "infinite write loop on address range",
1210 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1211 "[.b, .w, .l, .q] address number_of_objects data_to_write"
1213 "[.b, .w, .l] address number_of_objects data_to_write"
1216 #endif /* CONFIG_LOOPW */
1218 #ifdef CONFIG_CMD_MEMTEST
1220 mtest
, 5, 1, do_mem_mtest
,
1221 "simple RAM read/write test",
1222 "[start [end [pattern [iterations]]]]"
1224 #endif /* CONFIG_CMD_MEMTEST */
1226 #ifdef CONFIG_MX_CYCLIC
1228 mdc
, 4, 1, do_mem_mdc
,
1229 "memory display cyclic",
1230 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1231 "[.b, .w, .l, .q] address count delay(ms)"
1233 "[.b, .w, .l] address count delay(ms)"
1238 mwc
, 4, 1, do_mem_mwc
,
1239 "memory write cyclic",
1240 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
1241 "[.b, .w, .l, .q] address value delay(ms)"
1243 "[.b, .w, .l] address value delay(ms)"
1246 #endif /* CONFIG_MX_CYCLIC */
1248 #ifdef CONFIG_CMD_MEMINFO
1250 meminfo
, 3, 1, do_mem_info
,
1251 "display memory information",