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 #ifdef CONFIG_HAS_DATAFLASH
17 #include <dataflash.h>
22 #include <linux/compiler.h>
24 DECLARE_GLOBAL_DATA_PTR
;
26 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
27 #define CONFIG_SYS_MEMTEST_SCRATCH 0
30 static int mod_mem(cmd_tbl_t
*, int, int, int, char * const []);
32 /* Display values from last command.
33 * Memory modify remembered values are different from display memory.
35 static uint dp_last_addr
, dp_last_size
;
36 static uint dp_last_length
= 0x40;
37 static uint mm_last_addr
, mm_last_size
;
39 static ulong base_address
= 0;
44 * md{.b, .w, .l} {addr} {len}
46 #define DISP_LINE_LEN 16
47 static int do_mem_md(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
50 #if defined(CONFIG_HAS_DATAFLASH)
51 ulong nbytes
, linebytes
;
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 #if defined(CONFIG_HAS_DATAFLASH)
88 * We buffer all read data, so we can make sure data is read only
89 * once, and all accesses are with the specified bus width.
91 nbytes
= length
* size
;
93 char linebuf
[DISP_LINE_LEN
];
95 linebytes
= (nbytes
>DISP_LINE_LEN
)?DISP_LINE_LEN
:nbytes
;
97 rc
= read_dataflash(addr
, (linebytes
/size
)*size
, linebuf
);
98 p
= (rc
== DATAFLASH_OK
) ? linebuf
: (void*)addr
;
99 print_buffer(addr
, p
, size
, linebytes
/size
, DISP_LINE_LEN
/size
);
107 } while (nbytes
> 0);
110 # if defined(CONFIG_BLACKFIN)
111 /* See if we're trying to display L1 inst */
112 if (addr_bfin_on_chip_mem(addr
)) {
113 char linebuf
[DISP_LINE_LEN
];
114 ulong linebytes
, nbytes
= length
* size
;
116 linebytes
= (nbytes
> DISP_LINE_LEN
) ? DISP_LINE_LEN
: nbytes
;
117 memcpy(linebuf
, (void *)addr
, linebytes
);
118 print_buffer(addr
, linebuf
, size
, linebytes
/size
, DISP_LINE_LEN
/size
);
126 } while (nbytes
> 0);
131 ulong bytes
= size
* length
;
132 const void *buf
= map_sysmem(addr
, bytes
);
134 /* Print the lines. */
135 print_buffer(addr
, buf
, size
, length
, DISP_LINE_LEN
/ size
);
142 dp_last_length
= length
;
147 static int do_mem_mm(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
149 return mod_mem (cmdtp
, 1, flag
, argc
, argv
);
151 static int do_mem_nm(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
153 return mod_mem (cmdtp
, 0, flag
, argc
, argv
);
156 static int do_mem_mw(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
158 ulong addr
, writeval
, count
;
163 if ((argc
< 3) || (argc
> 4))
164 return CMD_RET_USAGE
;
166 /* Check for size specification.
168 if ((size
= cmd_get_data_size(argv
[0], 4)) < 1)
171 /* Address is specified since argc > 1
173 addr
= simple_strtoul(argv
[1], NULL
, 16);
174 addr
+= base_address
;
176 /* Get the value to write.
178 writeval
= simple_strtoul(argv
[2], NULL
, 16);
182 count
= simple_strtoul(argv
[3], NULL
, 16);
187 bytes
= size
* count
;
188 buf
= map_sysmem(addr
, bytes
);
189 while (count
-- > 0) {
191 *((u32
*)buf
) = (u32
)writeval
;
193 *((u16
*)buf
) = (u16
)writeval
;
195 *((u8
*)buf
) = (u8
)writeval
;
202 #ifdef CONFIG_MX_CYCLIC
203 int do_mem_mdc ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
209 return CMD_RET_USAGE
;
211 count
= simple_strtoul(argv
[3], NULL
, 10);
214 do_mem_md (NULL
, 0, 3, argv
);
216 /* delay for <count> ms... */
217 for (i
=0; i
<count
; i
++)
220 /* check for ctrl-c to abort... */
230 int do_mem_mwc ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
236 return CMD_RET_USAGE
;
238 count
= simple_strtoul(argv
[3], NULL
, 10);
241 do_mem_mw (NULL
, 0, 3, argv
);
243 /* delay for <count> ms... */
244 for (i
=0; i
<count
; i
++)
247 /* check for ctrl-c to abort... */
256 #endif /* CONFIG_MX_CYCLIC */
258 static int do_mem_cmp(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
260 ulong addr1
, addr2
, count
, ngood
, bytes
;
264 const void *buf1
, *buf2
, *base
;
267 return CMD_RET_USAGE
;
269 /* Check for size specification.
271 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
273 type
= size
== 4 ? "word" : size
== 2 ? "halfword" : "byte";
275 addr1
= simple_strtoul(argv
[1], NULL
, 16);
276 addr1
+= base_address
;
278 addr2
= simple_strtoul(argv
[2], NULL
, 16);
279 addr2
+= base_address
;
281 count
= simple_strtoul(argv
[3], NULL
, 16);
283 #ifdef CONFIG_HAS_DATAFLASH
284 if (addr_dataflash(addr1
) | addr_dataflash(addr2
)){
285 puts ("Comparison with DataFlash space not supported.\n\r");
290 #ifdef CONFIG_BLACKFIN
291 if (addr_bfin_on_chip_mem(addr1
) || addr_bfin_on_chip_mem(addr2
)) {
292 puts ("Comparison with L1 instruction memory not supported.\n\r");
297 bytes
= size
* count
;
298 base
= buf1
= map_sysmem(addr1
, bytes
);
299 buf2
= map_sysmem(addr2
, bytes
);
300 for (ngood
= 0; ngood
< count
; ++ngood
) {
303 word1
= *(u32
*)buf1
;
304 word2
= *(u32
*)buf2
;
305 } else if (size
== 2) {
306 word1
= *(u16
*)buf1
;
307 word2
= *(u16
*)buf2
;
312 if (word1
!= word2
) {
313 ulong offset
= buf1
- base
;
315 printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
316 type
, (ulong
)(addr1
+ offset
), size
, word1
,
317 type
, (ulong
)(addr2
+ offset
), size
, word2
);
325 /* reset watchdog from time to time */
326 if ((ngood
% (64 << 10)) == 0)
332 printf("Total of %ld %s(s) were the same\n", ngood
, type
);
336 static int do_mem_cp(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
338 ulong addr
, dest
, count
, bytes
;
344 return CMD_RET_USAGE
;
346 /* Check for size specification.
348 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
351 addr
= simple_strtoul(argv
[1], NULL
, 16);
352 addr
+= base_address
;
354 dest
= simple_strtoul(argv
[2], NULL
, 16);
355 dest
+= base_address
;
357 count
= simple_strtoul(argv
[3], NULL
, 16);
360 puts ("Zero length ???\n");
364 #ifndef CONFIG_SYS_NO_FLASH
365 /* check if we are copying to Flash */
366 if ( (addr2info(dest
) != NULL
)
367 #ifdef CONFIG_HAS_DATAFLASH
368 && (!addr_dataflash(dest
))
373 puts ("Copy to Flash... ");
375 rc
= flash_write ((char *)addr
, dest
, count
*size
);
385 #ifdef CONFIG_HAS_DATAFLASH
386 /* Check if we are copying from RAM or Flash to DataFlash */
387 if (addr_dataflash(dest
) && !addr_dataflash(addr
)){
390 puts ("Copy to DataFlash... ");
392 rc
= write_dataflash (dest
, addr
, count
*size
);
395 dataflash_perror (rc
);
402 /* Check if we are copying from DataFlash to RAM */
403 if (addr_dataflash(addr
) && !addr_dataflash(dest
)
404 #ifndef CONFIG_SYS_NO_FLASH
405 && (addr2info(dest
) == NULL
)
409 rc
= read_dataflash(addr
, count
* size
, (char *) dest
);
411 dataflash_perror (rc
);
417 if (addr_dataflash(addr
) && addr_dataflash(dest
)){
418 puts ("Unsupported combination of source/destination.\n\r");
423 #ifdef CONFIG_BLACKFIN
424 /* See if we're copying to/from L1 inst */
425 if (addr_bfin_on_chip_mem(dest
) || addr_bfin_on_chip_mem(addr
)) {
426 memcpy((void *)dest
, (void *)addr
, count
* size
);
431 bytes
= size
* count
;
432 buf
= map_sysmem(dest
, bytes
);
433 src
= map_sysmem(addr
, bytes
);
434 while (count
-- > 0) {
436 *((u32
*)buf
) = *((u32
*)src
);
438 *((u16
*)buf
) = *((u16
*)src
);
440 *((u8
*)buf
) = *((u8
*)src
);
444 /* reset watchdog from time to time */
445 if ((count
% (64 << 10)) == 0)
451 static int do_mem_base(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
455 /* Set new base address.
457 base_address
= simple_strtoul(argv
[1], NULL
, 16);
459 /* Print the current base address.
461 printf("Base Address: 0x%08lx\n", base_address
);
465 static int do_mem_loop(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
468 ulong addr
, length
, i
, bytes
;
471 volatile u16
*shortp
;
476 return CMD_RET_USAGE
;
479 * Check for a size specification.
480 * Defaults to long if no or incorrect specification.
482 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
485 /* Address is always specified.
487 addr
= simple_strtoul(argv
[1], NULL
, 16);
489 /* Length is the number of objects, not number of bytes.
491 length
= simple_strtoul(argv
[2], NULL
, 16);
493 bytes
= size
* length
;
494 buf
= map_sysmem(addr
, bytes
);
496 /* We want to optimize the loops to run as fast as possible.
497 * If we have only one object, just run infinite loops.
543 int do_mem_loopw (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
545 ulong addr
, length
, i
, data
, bytes
;
548 volatile u16
*shortp
;
553 return CMD_RET_USAGE
;
556 * Check for a size specification.
557 * Defaults to long if no or incorrect specification.
559 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
562 /* Address is always specified.
564 addr
= simple_strtoul(argv
[1], NULL
, 16);
566 /* Length is the number of objects, not number of bytes.
568 length
= simple_strtoul(argv
[2], NULL
, 16);
571 data
= simple_strtoul(argv
[3], NULL
, 16);
573 bytes
= size
* length
;
574 buf
= map_sysmem(addr
, bytes
);
576 /* We want to optimize the loops to run as fast as possible.
577 * If we have only one object, just run infinite loops.
618 #endif /* CONFIG_LOOPW */
620 #ifdef CONFIG_CMD_MEMTEST
621 static ulong
mem_test_alt(vu_long
*buf
, ulong start_addr
, ulong end_addr
,
632 vu_long anti_pattern
;
634 static const ulong bitpattern
[] = {
635 0x00000001, /* single bit */
636 0x00000003, /* two adjacent bits */
637 0x00000007, /* three adjacent bits */
638 0x0000000F, /* four adjacent bits */
639 0x00000005, /* two non-adjacent bits */
640 0x00000015, /* three non-adjacent bits */
641 0x00000055, /* four non-adjacent bits */
642 0xaaaaaaaa, /* alternating 1/0 */
645 num_words
= (end_addr
- start_addr
) / sizeof(vu_long
);
648 * Data line test: write a pattern to the first
649 * location, write the 1's complement to a 'parking'
650 * address (changes the state of the data bus so a
651 * floating bus doesn't give a false OK), and then
652 * read the value back. Note that we read it back
653 * into a variable because the next time we read it,
654 * it might be right (been there, tough to explain to
655 * the quality guys why it prints a failure when the
656 * "is" and "should be" are obviously the same in the
659 * Rather than exhaustively testing, we test some
660 * patterns by shifting '1' bits through a field of
661 * '0's and '0' bits through a field of '1's (i.e.
662 * pattern and ~pattern).
665 for (j
= 0; j
< sizeof(bitpattern
) / sizeof(bitpattern
[0]); j
++) {
667 for (; val
!= 0; val
<<= 1) {
669 *dummy
= ~val
; /* clear the test data off the bus */
671 if (readback
!= val
) {
672 printf("FAILURE (data line): "
673 "expected %08lx, actual %08lx\n",
682 if (readback
!= ~val
) {
683 printf("FAILURE (data line): "
684 "Is %08lx, should be %08lx\n",
694 * Based on code whose Original Author and Copyright
695 * information follows: Copyright (c) 1998 by Michael
696 * Barr. This software is placed into the public
697 * domain and may be used for any purpose. However,
698 * this notice must not be changed or removed and no
699 * warranty is either expressed or implied by its
700 * publication or distribution.
706 * Description: Test the address bus wiring in a
707 * memory region by performing a walking
708 * 1's test on the relevant bits of the
709 * address and checking for aliasing.
710 * This test will find single-bit
711 * address failures such as stuck-high,
712 * stuck-low, and shorted pins. The base
713 * address and size of the region are
714 * selected by the caller.
716 * Notes: For best results, the selected base
717 * address should have enough LSB 0's to
718 * guarantee single address bit changes.
719 * For example, to test a 64-Kbyte
720 * region, select a base address on a
721 * 64-Kbyte boundary. Also, select the
722 * region size as a power-of-two if at
725 * Returns: 0 if the test succeeds, 1 if the test fails.
727 pattern
= (vu_long
) 0xaaaaaaaa;
728 anti_pattern
= (vu_long
) 0x55555555;
730 debug("%s:%d: length = 0x%.8lx\n", __func__
, __LINE__
, num_words
);
732 * Write the default pattern at each of the
733 * power-of-two offsets.
735 for (offset
= 1; offset
< num_words
; offset
<<= 1)
736 addr
[offset
] = pattern
;
739 * Check for address bits stuck high.
742 addr
[test_offset
] = anti_pattern
;
744 for (offset
= 1; offset
< num_words
; offset
<<= 1) {
746 if (temp
!= pattern
) {
747 printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
748 " expected 0x%.8lx, actual 0x%.8lx\n",
749 start_addr
+ offset
*sizeof(vu_long
),
756 addr
[test_offset
] = pattern
;
760 * Check for addr bits stuck low or shorted.
762 for (test_offset
= 1; test_offset
< num_words
; test_offset
<<= 1) {
763 addr
[test_offset
] = anti_pattern
;
765 for (offset
= 1; offset
< num_words
; offset
<<= 1) {
767 if ((temp
!= pattern
) && (offset
!= test_offset
)) {
768 printf("\nFAILURE: Address bit stuck low or"
769 " shorted @ 0x%.8lx: expected 0x%.8lx,"
771 start_addr
+ offset
*sizeof(vu_long
),
778 addr
[test_offset
] = pattern
;
782 * Description: Test the integrity of a physical
783 * memory device by performing an
784 * increment/decrement test over the
785 * entire region. In the process every
786 * storage bit in the device is tested
787 * as a zero and a one. The base address
788 * and the size of the region are
789 * selected by the caller.
791 * Returns: 0 if the test succeeds, 1 if the test fails.
796 * Fill memory with a known pattern.
798 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
800 addr
[offset
] = pattern
;
804 * Check each location and invert it for the second pass.
806 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
809 if (temp
!= pattern
) {
810 printf("\nFAILURE (read/write) @ 0x%.8lx:"
811 " expected 0x%.8lx, actual 0x%.8lx)\n",
812 start_addr
+ offset
*sizeof(vu_long
),
819 anti_pattern
= ~pattern
;
820 addr
[offset
] = anti_pattern
;
824 * Check each location for the inverted pattern and zero it.
826 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
828 anti_pattern
= ~pattern
;
830 if (temp
!= anti_pattern
) {
831 printf("\nFAILURE (read/write): @ 0x%.8lx:"
832 " expected 0x%.8lx, actual 0x%.8lx)\n",
833 start_addr
+ offset
*sizeof(vu_long
),
845 static ulong
mem_test_quick(vu_long
*buf
, ulong start_addr
, ulong end_addr
,
846 vu_long pattern
, int iteration
)
854 /* Alternate the pattern */
859 * Flip the pattern each time to make lots of zeros and
860 * then, the next time, lots of ones. We decrement
861 * the "negative" patterns and increment the "positive"
862 * patterns to preserve this feature.
864 if (pattern
& 0x80000000)
865 pattern
= -pattern
; /* complement & increment */
869 length
= (end_addr
- start_addr
) / sizeof(ulong
);
871 printf("\rPattern %08lX Writing..."
873 "\b\b\b\b\b\b\b\b\b\b",
876 for (addr
= buf
, val
= pattern
; addr
< end
; addr
++) {
884 for (addr
= buf
, val
= pattern
; addr
< end
; addr
++) {
887 if (readback
!= val
) {
888 ulong offset
= addr
- buf
;
890 printf("\nMem error @ 0x%08X: "
891 "found %08lX, expected %08lX\n",
892 (uint
)(uintptr_t)(start_addr
+ offset
*sizeof(vu_long
)),
905 * Perform a memory test. A more complete alternative test can be
906 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
907 * interrupted by ctrl-c or by a failure of one of the sub-tests.
909 static int do_mem_mtest(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
913 vu_long
*buf
, *dummy
;
916 ulong errs
= 0; /* number of errors, or -1 if interrupted */
919 #if defined(CONFIG_SYS_ALT_MEMTEST)
920 const int alt_test
= 1;
922 const int alt_test
= 0;
926 start
= simple_strtoul(argv
[1], NULL
, 16);
928 start
= CONFIG_SYS_MEMTEST_START
;
931 end
= simple_strtoul(argv
[2], NULL
, 16);
933 end
= CONFIG_SYS_MEMTEST_END
;
936 pattern
= (ulong
)simple_strtoul(argv
[3], NULL
, 16);
941 iteration_limit
= (ulong
)simple_strtoul(argv
[4], NULL
, 16);
945 printf("Testing %08x ... %08x:\n", (uint
)start
, (uint
)end
);
946 debug("%s:%d: start %#08lx end %#08lx\n", __func__
, __LINE__
,
949 buf
= map_sysmem(start
, end
- start
);
950 dummy
= map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH
, sizeof(vu_long
));
952 !iteration_limit
|| iteration
< iteration_limit
;
959 printf("Iteration: %6d\r", iteration
+ 1);
962 errs
= mem_test_alt(buf
, start
, end
, dummy
);
964 errs
= mem_test_quick(buf
, start
, end
, pattern
,
972 * Work-around for eldk-4.2 which gives this warning if we try to
973 * case in the unmap_sysmem() call:
974 * warning: initialization discards qualifiers from pointer target type
977 void *vbuf
= (void *)buf
;
978 void *vdummy
= (void *)dummy
;
981 unmap_sysmem(vdummy
);
985 /* Memory test was aborted - write a newline to finish off */
989 printf("Tested %d iteration(s) with %lu errors.\n",
994 return ret
; /* not reached */
996 #endif /* CONFIG_CMD_MEMTEST */
1001 * mm{.b, .w, .l} {addr}
1002 * nm{.b, .w, .l} {addr}
1005 mod_mem(cmd_tbl_t
*cmdtp
, int incrflag
, int flag
, int argc
, char * const argv
[])
1012 return CMD_RET_USAGE
;
1014 #ifdef CONFIG_BOOT_RETRY_TIME
1015 reset_cmd_timeout(); /* got a good command to get here */
1017 /* We use the last specified parameters, unless new ones are
1020 addr
= mm_last_addr
;
1021 size
= mm_last_size
;
1023 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
1024 /* New command specified. Check for a size specification.
1025 * Defaults to long if no or incorrect specification.
1027 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
1030 /* Address is specified since argc > 1
1032 addr
= simple_strtoul(argv
[1], NULL
, 16);
1033 addr
+= base_address
;
1036 #ifdef CONFIG_HAS_DATAFLASH
1037 if (addr_dataflash(addr
)){
1038 puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
1043 #ifdef CONFIG_BLACKFIN
1044 if (addr_bfin_on_chip_mem(addr
)) {
1045 puts ("Can't modify L1 instruction in place. Use cp instead.\n\r");
1050 /* Print the address, followed by value. Then accept input for
1051 * the next value. A non-converted value exits.
1054 ptr
= map_sysmem(addr
, size
);
1055 printf("%08lx:", addr
);
1057 printf(" %08x", *((u32
*)ptr
));
1059 printf(" %04x", *((u16
*)ptr
));
1061 printf(" %02x", *((u8
*)ptr
));
1063 nbytes
= readline (" ? ");
1064 if (nbytes
== 0 || (nbytes
== 1 && console_buffer
[0] == '-')) {
1065 /* <CR> pressed as only input, don't modify current
1066 * location and move to next. "-" pressed will go back.
1069 addr
+= nbytes
? -size
: size
;
1071 #ifdef CONFIG_BOOT_RETRY_TIME
1072 reset_cmd_timeout(); /* good enough to not time out */
1075 #ifdef CONFIG_BOOT_RETRY_TIME
1076 else if (nbytes
== -2) {
1077 break; /* timed out, exit the command */
1082 i
= simple_strtoul(console_buffer
, &endp
, 16);
1083 nbytes
= endp
- console_buffer
;
1085 #ifdef CONFIG_BOOT_RETRY_TIME
1086 /* good enough to not time out
1088 reset_cmd_timeout();
1104 mm_last_addr
= addr
;
1105 mm_last_size
= size
;
1109 #ifdef CONFIG_CMD_CRC32
1111 static int do_mem_crc(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
1118 return CMD_RET_USAGE
;
1122 #ifdef CONFIG_HASH_VERIFY
1123 if (strcmp(*av
, "-v") == 0) {
1124 flags
|= HASH_FLAG_VERIFY
;
1130 return hash_command("crc32", flags
, cmdtp
, flag
, ac
, av
);
1135 /**************************************************/
1137 md
, 3, 1, do_mem_md
,
1139 "[.b, .w, .l] address [# of objects]"
1144 mm
, 2, 1, do_mem_mm
,
1145 "memory modify (auto-incrementing address)",
1146 "[.b, .w, .l] address"
1151 nm
, 2, 1, do_mem_nm
,
1152 "memory modify (constant address)",
1153 "[.b, .w, .l] address"
1157 mw
, 4, 1, do_mem_mw
,
1158 "memory write (fill)",
1159 "[.b, .w, .l] address value [count]"
1163 cp
, 4, 1, do_mem_cp
,
1165 "[.b, .w, .l] source target count"
1169 cmp
, 4, 1, do_mem_cmp
,
1171 "[.b, .w, .l] addr1 addr2 count"
1174 #ifdef CONFIG_CMD_CRC32
1176 #ifndef CONFIG_CRC32_VERIFY
1179 crc32
, 4, 1, do_mem_crc
,
1180 "checksum calculation",
1181 "address count [addr]\n - compute CRC32 checksum [save at addr]"
1184 #else /* CONFIG_CRC32_VERIFY */
1187 crc32
, 5, 1, do_mem_crc
,
1188 "checksum calculation",
1189 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1190 "-v address count crc\n - verify crc of memory area"
1193 #endif /* CONFIG_CRC32_VERIFY */
1197 #ifdef CONFIG_CMD_MEMINFO
1198 __weak
void board_show_dram(ulong size
)
1201 print_size(size
, "\n");
1204 static int do_mem_info(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
1205 char * const argv
[])
1207 board_show_dram(gd
->ram_size
);
1214 base
, 2, 1, do_mem_base
,
1215 "print or set address offset",
1216 "\n - print address offset for memory commands\n"
1217 "base off\n - set address offset for memory commands to 'off'"
1221 loop
, 3, 1, do_mem_loop
,
1222 "infinite loop on address range",
1223 "[.b, .w, .l] address number_of_objects"
1228 loopw
, 4, 1, do_mem_loopw
,
1229 "infinite write loop on address range",
1230 "[.b, .w, .l] address number_of_objects data_to_write"
1232 #endif /* CONFIG_LOOPW */
1234 #ifdef CONFIG_CMD_MEMTEST
1236 mtest
, 5, 1, do_mem_mtest
,
1237 "simple RAM read/write test",
1238 "[start [end [pattern [iterations]]]]"
1240 #endif /* CONFIG_CMD_MEMTEST */
1242 #ifdef CONFIG_MX_CYCLIC
1244 mdc
, 4, 1, do_mem_mdc
,
1245 "memory display cyclic",
1246 "[.b, .w, .l] address count delay(ms)"
1250 mwc
, 4, 1, do_mem_mwc
,
1251 "memory write cyclic",
1252 "[.b, .w, .l] address value delay(ms)"
1254 #endif /* CONFIG_MX_CYCLIC */
1256 #ifdef CONFIG_CMD_MEMINFO
1258 meminfo
, 3, 1, do_mem_info
,
1259 "display memory information",