]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_mem.c
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 #if (CONFIG_COMMANDS & CFG_CMD_MMC)
35 #ifdef CONFIG_HAS_DATAFLASH
36 #include <dataflash.h>
39 #if (CONFIG_COMMANDS & (CFG_CMD_MEMORY | \
44 int cmd_get_data_size(char* arg
, int default_size
)
46 /* Check for a size specification .b, .w or .l.
48 int len
= strlen(arg
);
49 if (len
> 2 && arg
[len
-2] == '.') {
67 #if (CONFIG_COMMANDS & CFG_CMD_MEMORY)
70 #define PRINTF(fmt,args...) printf (fmt ,##args)
72 #define PRINTF(fmt,args...)
75 static int mod_mem(cmd_tbl_t
*, int, int, int, char *[]);
77 /* Display values from last command.
78 * Memory modify remembered values are different from display memory.
80 uint dp_last_addr
, dp_last_size
;
81 uint dp_last_length
= 0x40;
82 uint mm_last_addr
, mm_last_size
;
84 static ulong base_address
= 0;
89 * md{.b, .w, .l} {addr} {len}
91 #define DISP_LINE_LEN 16
92 int do_mem_md ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
95 ulong i
, nbytes
, linebytes
;
100 /* We use the last specified parameters, unless new ones are
105 length
= dp_last_length
;
108 printf ("Usage:\n%s\n", cmdtp
->usage
);
112 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
113 /* New command specified. Check for a size specification.
114 * Defaults to long if no or incorrect specification.
116 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
119 /* Address is specified since argc > 1
121 addr
= simple_strtoul(argv
[1], NULL
, 16);
122 addr
+= base_address
;
124 /* If another parameter, it is the length to display.
125 * Length is the number of objects, not number of bytes.
128 length
= simple_strtoul(argv
[2], NULL
, 16);
133 * We buffer all read data, so we can make sure data is read only
134 * once, and all accesses are with the specified bus width.
136 nbytes
= length
* size
;
138 char linebuf
[DISP_LINE_LEN
];
139 uint
*uip
= (uint
*)linebuf
;
140 ushort
*usp
= (ushort
*)linebuf
;
141 u_char
*ucp
= (u_char
*)linebuf
;
142 #ifdef CONFIG_HAS_DATAFLASH
145 printf("%08lx:", addr
);
146 linebytes
= (nbytes
>DISP_LINE_LEN
)?DISP_LINE_LEN
:nbytes
;
148 #ifdef CONFIG_HAS_DATAFLASH
149 if ((rc
= read_dataflash(addr
, (linebytes
/size
)*size
, linebuf
)) == DATAFLASH_OK
){
150 /* if outside dataflash */
152 dataflash_perror (rc);
155 for (i
=0; i
<linebytes
; i
+= size
) {
157 printf(" %08x", *uip
++);
158 } else if (size
== 2) {
159 printf(" %04x", *usp
++);
161 printf(" %02x", *ucp
++);
166 } else { /* addr does not correspond to DataFlash */
168 for (i
=0; i
<linebytes
; i
+= size
) {
170 printf(" %08x", (*uip
++ = *((uint
*)addr
)));
171 } else if (size
== 2) {
172 printf(" %04x", (*usp
++ = *((ushort
*)addr
)));
174 printf(" %02x", (*ucp
++ = *((u_char
*)addr
)));
178 #ifdef CONFIG_HAS_DATAFLASH
183 for (i
=0; i
<linebytes
; i
++) {
184 if ((*cp
< 0x20) || (*cp
> 0x7e))
196 } while (nbytes
> 0);
199 dp_last_length
= length
;
204 int do_mem_mm ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
206 return mod_mem (cmdtp
, 1, flag
, argc
, argv
);
208 int do_mem_nm ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
210 return mod_mem (cmdtp
, 0, flag
, argc
, argv
);
213 int do_mem_mw ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
215 ulong addr
, writeval
, count
;
218 if ((argc
< 3) || (argc
> 4)) {
219 printf ("Usage:\n%s\n", cmdtp
->usage
);
223 /* Check for size specification.
225 if ((size
= cmd_get_data_size(argv
[0], 4)) < 1)
228 /* Address is specified since argc > 1
230 addr
= simple_strtoul(argv
[1], NULL
, 16);
231 addr
+= base_address
;
233 /* Get the value to write.
235 writeval
= simple_strtoul(argv
[2], NULL
, 16);
239 count
= simple_strtoul(argv
[3], NULL
, 16);
244 while (count
-- > 0) {
246 *((ulong
*)addr
) = (ulong
)writeval
;
248 *((ushort
*)addr
) = (ushort
)writeval
;
250 *((u_char
*)addr
) = (u_char
)writeval
;
256 int do_mem_cmp (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
258 ulong addr1
, addr2
, count
, ngood
;
263 printf ("Usage:\n%s\n", cmdtp
->usage
);
267 /* Check for size specification.
269 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
272 addr1
= simple_strtoul(argv
[1], NULL
, 16);
273 addr1
+= base_address
;
275 addr2
= simple_strtoul(argv
[2], NULL
, 16);
276 addr2
+= base_address
;
278 count
= simple_strtoul(argv
[3], NULL
, 16);
280 #ifdef CONFIG_HAS_DATAFLASH
281 if (addr_dataflash(addr1
) | addr_dataflash(addr2
)){
282 puts ("Comparison with DataFlash space not supported.\n\r");
289 while (count
-- > 0) {
291 ulong word1
= *(ulong
*)addr1
;
292 ulong word2
= *(ulong
*)addr2
;
293 if (word1
!= word2
) {
294 printf("word at 0x%08lx (0x%08lx) "
295 "!= word at 0x%08lx (0x%08lx)\n",
296 addr1
, word1
, addr2
, word2
);
301 else if (size
== 2) {
302 ushort hword1
= *(ushort
*)addr1
;
303 ushort hword2
= *(ushort
*)addr2
;
304 if (hword1
!= hword2
) {
305 printf("halfword at 0x%08lx (0x%04x) "
306 "!= halfword at 0x%08lx (0x%04x)\n",
307 addr1
, hword1
, addr2
, hword2
);
313 u_char byte1
= *(u_char
*)addr1
;
314 u_char byte2
= *(u_char
*)addr2
;
315 if (byte1
!= byte2
) {
316 printf("byte at 0x%08lx (0x%02x) "
317 "!= byte at 0x%08lx (0x%02x)\n",
318 addr1
, byte1
, addr2
, byte2
);
328 printf("Total of %ld %s%s were the same\n",
329 ngood
, size
== 4 ? "word" : size
== 2 ? "halfword" : "byte",
330 ngood
== 1 ? "" : "s");
334 int do_mem_cp ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
336 ulong addr
, dest
, count
;
340 printf ("Usage:\n%s\n", cmdtp
->usage
);
344 /* Check for size specification.
346 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
349 addr
= simple_strtoul(argv
[1], NULL
, 16);
350 addr
+= base_address
;
352 dest
= simple_strtoul(argv
[2], NULL
, 16);
353 dest
+= base_address
;
355 count
= simple_strtoul(argv
[3], NULL
, 16);
358 puts ("Zero length ???\n");
363 /* check if we are copying to Flash */
364 if ( (addr2info(dest
) != NULL
)
365 #ifdef CONFIG_HAS_DATAFLASH
366 && (!addr_dataflash(addr
))
371 puts ("Copy to Flash... ");
373 rc
= flash_write ((uchar
*)addr
, dest
, count
*size
);
383 #if (CONFIG_COMMANDS & CFG_CMD_MMC)
384 if (mmc2info(dest
)) {
387 puts ("Copy to MMC... ");
388 switch (rc
= mmc_write ((uchar
*)addr
, dest
, count
*size
)) {
396 printf ("%s[%d] FIXME: rc=%d\n",__FILE__
,__LINE__
,rc
);
403 if (mmc2info(addr
)) {
406 puts ("Copy from MMC... ");
407 switch (rc
= mmc_read (addr
, (uchar
*)dest
, count
*size
)) {
415 printf ("%s[%d] FIXME: rc=%d\n",__FILE__
,__LINE__
,rc
);
423 #ifdef CONFIG_HAS_DATAFLASH
424 /* Check if we are copying from RAM or Flash to DataFlash */
425 if (addr_dataflash(dest
) && !addr_dataflash(addr
)){
428 puts ("Copy to DataFlash... ");
430 rc
= write_dataflash (dest
, addr
, count
*size
);
433 dataflash_perror (rc
);
440 /* Check if we are copying from DataFlash to RAM */
441 if (addr_dataflash(addr
) && !addr_dataflash(dest
) && (addr2info(dest
)==NULL
) ){
443 rc
= read_dataflash(addr
, count
* size
, (char *) dest
);
445 dataflash_perror (rc
);
451 if (addr_dataflash(addr
) && addr_dataflash(dest
)){
452 puts ("Unsupported combination of source/destination.\n\r");
457 while (count
-- > 0) {
459 *((ulong
*)dest
) = *((ulong
*)addr
);
461 *((ushort
*)dest
) = *((ushort
*)addr
);
463 *((u_char
*)dest
) = *((u_char
*)addr
);
470 int do_mem_base (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
473 /* Set new base address.
475 base_address
= simple_strtoul(argv
[1], NULL
, 16);
477 /* Print the current base address.
479 printf("Base Address: 0x%08lx\n", base_address
);
483 int do_mem_loop (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
485 ulong addr
, length
, i
, junk
;
487 volatile uint
*longp
;
488 volatile ushort
*shortp
;
492 printf ("Usage:\n%s\n", cmdtp
->usage
);
496 /* Check for a size spefication.
497 * Defaults to long if no or incorrect specification.
499 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
502 /* Address is always specified.
504 addr
= simple_strtoul(argv
[1], NULL
, 16);
506 /* Length is the number of objects, not number of bytes.
508 length
= simple_strtoul(argv
[2], NULL
, 16);
510 /* We want to optimize the loops to run as fast as possible.
511 * If we have only one object, just run infinite loops.
515 longp
= (uint
*)addr
;
520 shortp
= (ushort
*)addr
;
531 longp
= (uint
*)addr
;
539 shortp
= (ushort
*)addr
;
554 * Perform a memory test. A more complete alternative test can be
555 * configured using CFG_ALT_MEMTEST. The complete test loops until
556 * interrupted by ctrl-c or by a failure of one of the sub-tests.
558 int do_mem_mtest (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
560 vu_long
*addr
, *start
, *end
;
564 #if defined(CFG_ALT_MEMTEST)
570 vu_long anti_pattern
;
572 #if defined(CFG_MEMTEST_SCRATCH)
573 vu_long
*dummy
= (vu_long
*)CFG_MEMTEST_SCRATCH
;
575 vu_long
*dummy
= NULL
;
580 static const ulong bitpattern
[] = {
581 0x00000001, /* single bit */
582 0x00000003, /* two adjacent bits */
583 0x00000007, /* three adjacent bits */
584 0x0000000F, /* four adjacent bits */
585 0x00000005, /* two non-adjacent bits */
586 0x00000015, /* three non-adjacent bits */
587 0x00000055, /* four non-adjacent bits */
588 0xaaaaaaaa, /* alternating 1/0 */
597 start
= (ulong
*)simple_strtoul(argv
[1], NULL
, 16);
599 start
= (ulong
*)CFG_MEMTEST_START
;
603 end
= (ulong
*)simple_strtoul(argv
[2], NULL
, 16);
605 end
= (ulong
*)(CFG_MEMTEST_END
);
609 pattern
= (ulong
)simple_strtoul(argv
[3], NULL
, 16);
614 #if defined(CFG_ALT_MEMTEST)
615 printf ("Testing %08x ... %08x:\n", (uint
)start
, (uint
)end
);
616 PRINTF("%s:%d: start 0x%p end 0x%p\n",
617 __FUNCTION__
, __LINE__
, start
, end
);
625 printf("Iteration: %6d\r", iterations
);
626 PRINTF("Iteration: %6d\n", iterations
);
630 * Data line test: write a pattern to the first
631 * location, write the 1's complement to a 'parking'
632 * address (changes the state of the data bus so a
633 * floating bus doen't give a false OK), and then
634 * read the value back. Note that we read it back
635 * into a variable because the next time we read it,
636 * it might be right (been there, tough to explain to
637 * the quality guys why it prints a failure when the
638 * "is" and "should be" are obviously the same in the
641 * Rather than exhaustively testing, we test some
642 * patterns by shifting '1' bits through a field of
643 * '0's and '0' bits through a field of '1's (i.e.
644 * pattern and ~pattern).
647 for (j
= 0; j
< sizeof(bitpattern
)/sizeof(bitpattern
[0]); j
++) {
649 for(; val
!= 0; val
<<= 1) {
651 *dummy
= ~val
; /* clear the test data off of the bus */
653 if(readback
!= val
) {
654 printf ("FAILURE (data line): "
655 "expected %08lx, actual %08lx\n",
661 if(readback
!= ~val
) {
662 printf ("FAILURE (data line): "
663 "Is %08lx, should be %08lx\n",
670 * Based on code whose Original Author and Copyright
671 * information follows: Copyright (c) 1998 by Michael
672 * Barr. This software is placed into the public
673 * domain and may be used for any purpose. However,
674 * this notice must not be changed or removed and no
675 * warranty is either expressed or implied by its
676 * publication or distribution.
682 * Description: Test the address bus wiring in a
683 * memory region by performing a walking
684 * 1's test on the relevant bits of the
685 * address and checking for aliasing.
686 * This test will find single-bit
687 * address failures such as stuck -high,
688 * stuck-low, and shorted pins. The base
689 * address and size of the region are
690 * selected by the caller.
692 * Notes: For best results, the selected base
693 * address should have enough LSB 0's to
694 * guarantee single address bit changes.
695 * For example, to test a 64-Kbyte
696 * region, select a base address on a
697 * 64-Kbyte boundary. Also, select the
698 * region size as a power-of-two if at
701 * Returns: 0 if the test succeeds, 1 if the test fails.
703 * ## NOTE ## Be sure to specify start and end
704 * addresses such that addr_mask has
705 * lots of bits set. For example an
706 * address range of 01000000 02000000 is
707 * bad while a range of 01000000
708 * 01ffffff is perfect.
710 addr_mask
= ((ulong
)end
- (ulong
)start
)/sizeof(vu_long
);
711 pattern
= (vu_long
) 0xaaaaaaaa;
712 anti_pattern
= (vu_long
) 0x55555555;
714 PRINTF("%s:%d: addr mask = 0x%.8lx\n",
715 __FUNCTION__
, __LINE__
,
718 * Write the default pattern at each of the
719 * power-of-two offsets.
721 for (offset
= 1; (offset
& addr_mask
) != 0; offset
<<= 1) {
722 start
[offset
] = pattern
;
726 * Check for address bits stuck high.
729 start
[test_offset
] = anti_pattern
;
731 for (offset
= 1; (offset
& addr_mask
) != 0; offset
<<= 1) {
732 temp
= start
[offset
];
733 if (temp
!= pattern
) {
734 printf ("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
735 " expected 0x%.8lx, actual 0x%.8lx\n",
736 (ulong
)&start
[offset
], pattern
, temp
);
740 start
[test_offset
] = pattern
;
743 * Check for addr bits stuck low or shorted.
745 for (test_offset
= 1; (test_offset
& addr_mask
) != 0; test_offset
<<= 1) {
746 start
[test_offset
] = anti_pattern
;
748 for (offset
= 1; (offset
& addr_mask
) != 0; offset
<<= 1) {
749 temp
= start
[offset
];
750 if ((temp
!= pattern
) && (offset
!= test_offset
)) {
751 printf ("\nFAILURE: Address bit stuck low or shorted @"
752 " 0x%.8lx: expected 0x%.8lx, actual 0x%.8lx\n",
753 (ulong
)&start
[offset
], pattern
, temp
);
757 start
[test_offset
] = pattern
;
761 * Description: Test the integrity of a physical
762 * memory device by performing an
763 * increment/decrement test over the
764 * entire region. In the process every
765 * storage bit in the device is tested
766 * as a zero and a one. The base address
767 * and the size of the region are
768 * selected by the caller.
770 * Returns: 0 if the test succeeds, 1 if the test fails.
772 num_words
= ((ulong
)end
- (ulong
)start
)/sizeof(vu_long
) + 1;
775 * Fill memory with a known pattern.
777 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
778 start
[offset
] = pattern
;
782 * Check each location and invert it for the second pass.
784 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
785 temp
= start
[offset
];
786 if (temp
!= pattern
) {
787 printf ("\nFAILURE (read/write) @ 0x%.8lx:"
788 " expected 0x%.8lx, actual 0x%.8lx)\n",
789 (ulong
)&start
[offset
], pattern
, temp
);
793 anti_pattern
= ~pattern
;
794 start
[offset
] = anti_pattern
;
798 * Check each location for the inverted pattern and zero it.
800 for (pattern
= 1, offset
= 0; offset
< num_words
; pattern
++, offset
++) {
801 anti_pattern
= ~pattern
;
802 temp
= start
[offset
];
803 if (temp
!= anti_pattern
) {
804 printf ("\nFAILURE (read/write): @ 0x%.8lx:"
805 " expected 0x%.8lx, actual 0x%.8lx)\n",
806 (ulong
)&start
[offset
], anti_pattern
, temp
);
813 #else /* The original, quickie test */
821 printf ("\rPattern %08lX Writing..."
823 "\b\b\b\b\b\b\b\b\b\b",
826 for (addr
=start
,val
=pattern
; addr
<end
; addr
++) {
833 for (addr
=start
,val
=pattern
; addr
<end
; addr
++) {
835 if (readback
!= val
) {
836 printf ("\nMem error @ 0x%08X: "
837 "found %08lX, expected %08lX\n",
838 (uint
)addr
, readback
, val
);
845 * Flip the pattern each time to make lots of zeros and
846 * then, the next time, lots of ones. We decrement
847 * the "negative" patterns and increment the "positive"
848 * patterns to preserve this feature.
850 if(pattern
& 0x80000000) {
851 pattern
= -pattern
; /* complement & increment */
866 * mm{.b, .w, .l} {addr}
867 * nm{.b, .w, .l} {addr}
870 mod_mem(cmd_tbl_t
*cmdtp
, int incrflag
, int flag
, int argc
, char *argv
[])
874 extern char console_buffer
[];
877 printf ("Usage:\n%s\n", cmdtp
->usage
);
881 #ifdef CONFIG_BOOT_RETRY_TIME
882 reset_cmd_timeout(); /* got a good command to get here */
884 /* We use the last specified parameters, unless new ones are
890 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
891 /* New command specified. Check for a size specification.
892 * Defaults to long if no or incorrect specification.
894 if ((size
= cmd_get_data_size(argv
[0], 4)) < 0)
897 /* Address is specified since argc > 1
899 addr
= simple_strtoul(argv
[1], NULL
, 16);
900 addr
+= base_address
;
903 #ifdef CONFIG_HAS_DATAFLASH
904 if (addr_dataflash(addr
)){
905 puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
910 /* Print the address, followed by value. Then accept input for
911 * the next value. A non-converted value exits.
914 printf("%08lx:", addr
);
916 printf(" %08x", *((uint
*)addr
));
918 printf(" %04x", *((ushort
*)addr
));
920 printf(" %02x", *((u_char
*)addr
));
922 nbytes
= readline (" ? ");
923 if (nbytes
== 0 || (nbytes
== 1 && console_buffer
[0] == '-')) {
924 /* <CR> pressed as only input, don't modify current
925 * location and move to next. "-" pressed will go back.
928 addr
+= nbytes
? -size
: size
;
930 #ifdef CONFIG_BOOT_RETRY_TIME
931 reset_cmd_timeout(); /* good enough to not time out */
934 #ifdef CONFIG_BOOT_RETRY_TIME
935 else if (nbytes
== -2) {
936 break; /* timed out, exit the command */
941 i
= simple_strtoul(console_buffer
, &endp
, 16);
942 nbytes
= endp
- console_buffer
;
944 #ifdef CONFIG_BOOT_RETRY_TIME
945 /* good enough to not time out
952 *((ushort
*)addr
) = i
;
954 *((u_char
*)addr
) = i
;
966 #ifndef CONFIG_CRC32_VERIFY
968 int do_mem_crc (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
975 printf ("Usage:\n%s\n", cmdtp
->usage
);
979 addr
= simple_strtoul (argv
[1], NULL
, 16);
980 addr
+= base_address
;
982 length
= simple_strtoul (argv
[2], NULL
, 16);
984 crc
= crc32 (0, (const uchar
*) addr
, length
);
986 printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
987 addr
, addr
+ length
- 1, crc
);
990 ptr
= (ulong
*) simple_strtoul (argv
[3], NULL
, 16);
997 #else /* CONFIG_CRC32_VERIFY */
999 int do_mem_crc (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
1011 printf ("Usage:\n%s\n", cmdtp
->usage
);
1017 if (strcmp(*av
, "-v") == 0) {
1026 addr
= simple_strtoul(*av
++, NULL
, 16);
1027 addr
+= base_address
;
1028 length
= simple_strtoul(*av
++, NULL
, 16);
1030 crc
= crc32(0, (const uchar
*) addr
, length
);
1033 printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
1034 addr
, addr
+ length
- 1, crc
);
1036 ptr
= (ulong
*) simple_strtoul (*av
++, NULL
, 16);
1040 vcrc
= simple_strtoul(*av
++, NULL
, 16);
1042 printf ("CRC32 for %08lx ... %08lx ==> %08lx != %08lx ** ERROR **\n",
1043 addr
, addr
+ length
- 1, crc
, vcrc
);
1051 #endif /* CONFIG_CRC32_VERIFY */
1053 /**************************************************/
1054 #if (CONFIG_COMMANDS & CFG_CMD_MEMORY)
1056 md
, 3, 1, do_mem_md
,
1057 "md - memory display\n",
1058 "[.b, .w, .l] address [# of objects]\n - memory display\n"
1063 mm
, 2, 1, do_mem_mm
,
1064 "mm - memory modify (auto-incrementing)\n",
1065 "[.b, .w, .l] address\n" " - memory modify, auto increment address\n"
1070 nm
, 2, 1, do_mem_nm
,
1071 "nm - memory modify (constant address)\n",
1072 "[.b, .w, .l] address\n - memory modify, read and keep address\n"
1076 mw
, 4, 1, do_mem_mw
,
1077 "mw - memory write (fill)\n",
1078 "[.b, .w, .l] address value [count]\n - write memory\n"
1082 cp
, 4, 1, do_mem_cp
,
1083 "cp - memory copy\n",
1084 "[.b, .w, .l] source target count\n - copy memory\n"
1088 cmp
, 4, 1, do_mem_cmp
,
1089 "cmp - memory compare\n",
1090 "[.b, .w, .l] addr1 addr2 count\n - compare memory\n"
1093 #ifndef CONFIG_CRC32_VERIFY
1096 crc32
, 4, 1, do_mem_crc
,
1097 "crc32 - checksum calculation\n",
1098 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1101 #else /* CONFIG_CRC32_VERIFY */
1104 crc32
, 5, 1, do_mem_crc
,
1105 "crc32 - checksum calculation\n",
1106 "address count [addr]\n - compute CRC32 checksum [save at addr]\n"
1107 "-v address count crc\n - verify crc of memory area\n"
1110 #endif /* CONFIG_CRC32_VERIFY */
1113 base
, 2, 1, do_mem_base
,
1114 "base - print or set address offset\n",
1115 "\n - print address offset for memory commands\n"
1116 "base off\n - set address offset for memory commands to 'off'\n"
1120 loop
, 3, 1, do_mem_loop
,
1121 "loop - infinite loop on address range\n",
1122 "[.b, .w, .l] address number_of_objects\n"
1123 " - loop on a set of addresses\n"
1127 mtest
, 4, 1, do_mem_mtest
,
1128 "mtest - simple RAM test\n",
1129 "[start [end [pattern]]]\n"
1130 " - simple RAM read/write test\n"
1134 #endif /* CFG_CMD_MEMORY */