u-boot/common/cmd_mem.c
Simon Glass 15a33e49de Add option to display customised memory information
Some boards want to report more than just memory size. For example, it
might be useful to display the memory type (DDR2, DDR3) or manufacturer.

Add a weak function to support this requirement, accessed through a new
'meminfo' command.

Any example of the DRAM: output is below, just for illustration:

SMDK5250 # meminfo
DRAM:  2 GiB Elpida DDR3 @ 800MHz

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-01-10 22:22:12 +01:00

1273 lines
28 KiB
C

/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Memory Functions
*
* Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
*/
#include <common.h>
#include <command.h>
#ifdef CONFIG_HAS_DATAFLASH
#include <dataflash.h>
#endif
#include <watchdog.h>
#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
/* Display values from last command.
* Memory modify remembered values are different from display memory.
*/
static uint dp_last_addr, dp_last_size;
static uint dp_last_length = 0x40;
static uint mm_last_addr, mm_last_size;
static ulong base_address = 0;
/* Memory Display
*
* Syntax:
* md{.b, .w, .l} {addr} {len}
*/
#define DISP_LINE_LEN 16
static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, length;
#if defined(CONFIG_HAS_DATAFLASH)
ulong nbytes, linebytes;
#endif
int size;
int rc = 0;
/* We use the last specified parameters, unless new ones are
* entered.
*/
addr = dp_last_addr;
size = dp_last_size;
length = dp_last_length;
if (argc < 2)
return CMD_RET_USAGE;
if ((flag & CMD_FLAG_REPEAT) == 0) {
/* New command specified. Check for a size specification.
* Defaults to long if no or incorrect specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 0)
return 1;
/* Address is specified since argc > 1
*/
addr = simple_strtoul(argv[1], NULL, 16);
addr += base_address;
/* If another parameter, it is the length to display.
* Length is the number of objects, not number of bytes.
*/
if (argc > 2)
length = simple_strtoul(argv[2], NULL, 16);
}
#if defined(CONFIG_HAS_DATAFLASH)
/* Print the lines.
*
* We buffer all read data, so we can make sure data is read only
* once, and all accesses are with the specified bus width.
*/
nbytes = length * size;
do {
char linebuf[DISP_LINE_LEN];
void* p;
linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
nbytes -= linebytes;
addr += linebytes;
if (ctrlc()) {
rc = 1;
break;
}
} while (nbytes > 0);
#else
# if defined(CONFIG_BLACKFIN)
/* See if we're trying to display L1 inst */
if (addr_bfin_on_chip_mem(addr)) {
char linebuf[DISP_LINE_LEN];
ulong linebytes, nbytes = length * size;
do {
linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
memcpy(linebuf, (void *)addr, linebytes);
print_buffer(addr, linebuf, size, linebytes/size, DISP_LINE_LEN/size);
nbytes -= linebytes;
addr += linebytes;
if (ctrlc()) {
rc = 1;
break;
}
} while (nbytes > 0);
} else
# endif
{
/* Print the lines. */
print_buffer(addr, (void*)addr, size, length, DISP_LINE_LEN/size);
addr += size*length;
}
#endif
dp_last_addr = addr;
dp_last_length = length;
dp_last_size = size;
return (rc);
}
static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
return mod_mem (cmdtp, 1, flag, argc, argv);
}
static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
return mod_mem (cmdtp, 0, flag, argc, argv);
}
static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, writeval, count;
int size;
if ((argc < 3) || (argc > 4))
return CMD_RET_USAGE;
/* Check for size specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 1)
return 1;
/* Address is specified since argc > 1
*/
addr = simple_strtoul(argv[1], NULL, 16);
addr += base_address;
/* Get the value to write.
*/
writeval = simple_strtoul(argv[2], NULL, 16);
/* Count ? */
if (argc == 4) {
count = simple_strtoul(argv[3], NULL, 16);
} else {
count = 1;
}
while (count-- > 0) {
if (size == 4)
*((ulong *)addr) = (ulong )writeval;
else if (size == 2)
*((ushort *)addr) = (ushort)writeval;
else
*((u_char *)addr) = (u_char)writeval;
addr += size;
}
return 0;
}
#ifdef CONFIG_MX_CYCLIC
int do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
ulong count;
if (argc < 4)
return CMD_RET_USAGE;
count = simple_strtoul(argv[3], NULL, 10);
for (;;) {
do_mem_md (NULL, 0, 3, argv);
/* delay for <count> ms... */
for (i=0; i<count; i++)
udelay (1000);
/* check for ctrl-c to abort... */
if (ctrlc()) {
puts("Abort\n");
return 0;
}
}
return 0;
}
int do_mem_mwc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
ulong count;
if (argc < 4)
return CMD_RET_USAGE;
count = simple_strtoul(argv[3], NULL, 10);
for (;;) {
do_mem_mw (NULL, 0, 3, argv);
/* delay for <count> ms... */
for (i=0; i<count; i++)
udelay (1000);
/* check for ctrl-c to abort... */
if (ctrlc()) {
puts("Abort\n");
return 0;
}
}
return 0;
}
#endif /* CONFIG_MX_CYCLIC */
static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr1, addr2, count, ngood;
int size;
int rcode = 0;
const char *type;
if (argc != 4)
return CMD_RET_USAGE;
/* Check for size specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 0)
return 1;
type = size == 4 ? "word" : size == 2 ? "halfword" : "byte";
addr1 = simple_strtoul(argv[1], NULL, 16);
addr1 += base_address;
addr2 = simple_strtoul(argv[2], NULL, 16);
addr2 += base_address;
count = simple_strtoul(argv[3], NULL, 16);
#ifdef CONFIG_HAS_DATAFLASH
if (addr_dataflash(addr1) | addr_dataflash(addr2)){
puts ("Comparison with DataFlash space not supported.\n\r");
return 0;
}
#endif
#ifdef CONFIG_BLACKFIN
if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) {
puts ("Comparison with L1 instruction memory not supported.\n\r");
return 0;
}
#endif
for (ngood = 0; ngood < count; ++ngood) {
ulong word1, word2;
if (size == 4) {
word1 = *(ulong *)addr1;
word2 = *(ulong *)addr2;
} else if (size == 2) {
word1 = *(ushort *)addr1;
word2 = *(ushort *)addr2;
} else {
word1 = *(u_char *)addr1;
word2 = *(u_char *)addr2;
}
if (word1 != word2) {
printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
type, addr1, size, word1,
type, addr2, size, word2);
rcode = 1;
break;
}
addr1 += size;
addr2 += size;
/* reset watchdog from time to time */
if ((ngood % (64 << 10)) == 0)
WATCHDOG_RESET();
}
printf("Total of %ld %s(s) were the same\n", ngood, type);
return rcode;
}
static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, dest, count;
int size;
if (argc != 4)
return CMD_RET_USAGE;
/* Check for size specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 0)
return 1;
addr = simple_strtoul(argv[1], NULL, 16);
addr += base_address;
dest = simple_strtoul(argv[2], NULL, 16);
dest += base_address;
count = simple_strtoul(argv[3], NULL, 16);
if (count == 0) {
puts ("Zero length ???\n");
return 1;
}
#ifndef CONFIG_SYS_NO_FLASH
/* check if we are copying to Flash */
if ( (addr2info(dest) != NULL)
#ifdef CONFIG_HAS_DATAFLASH
&& (!addr_dataflash(dest))
#endif
) {
int rc;
puts ("Copy to Flash... ");
rc = flash_write ((char *)addr, dest, count*size);
if (rc != 0) {
flash_perror (rc);
return (1);
}
puts ("done\n");
return 0;
}
#endif
#ifdef CONFIG_HAS_DATAFLASH
/* Check if we are copying from RAM or Flash to DataFlash */
if (addr_dataflash(dest) && !addr_dataflash(addr)){
int rc;
puts ("Copy to DataFlash... ");
rc = write_dataflash (dest, addr, count*size);
if (rc != 1) {
dataflash_perror (rc);
return (1);
}
puts ("done\n");
return 0;
}
/* Check if we are copying from DataFlash to RAM */
if (addr_dataflash(addr) && !addr_dataflash(dest)
#ifndef CONFIG_SYS_NO_FLASH
&& (addr2info(dest) == NULL)
#endif
){
int rc;
rc = read_dataflash(addr, count * size, (char *) dest);
if (rc != 1) {
dataflash_perror (rc);
return (1);
}
return 0;
}
if (addr_dataflash(addr) && addr_dataflash(dest)){
puts ("Unsupported combination of source/destination.\n\r");
return 1;
}
#endif
#ifdef CONFIG_BLACKFIN
/* See if we're copying to/from L1 inst */
if (addr_bfin_on_chip_mem(dest) || addr_bfin_on_chip_mem(addr)) {
memcpy((void *)dest, (void *)addr, count * size);
return 0;
}
#endif
while (count-- > 0) {
if (size == 4)
*((ulong *)dest) = *((ulong *)addr);
else if (size == 2)
*((ushort *)dest) = *((ushort *)addr);
else
*((u_char *)dest) = *((u_char *)addr);
addr += size;
dest += size;
/* reset watchdog from time to time */
if ((count % (64 << 10)) == 0)
WATCHDOG_RESET();
}
return 0;
}
static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
if (argc > 1) {
/* Set new base address.
*/
base_address = simple_strtoul(argv[1], NULL, 16);
}
/* Print the current base address.
*/
printf("Base Address: 0x%08lx\n", base_address);
return 0;
}
static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
ulong addr, length, i;
int size;
volatile uint *longp;
volatile ushort *shortp;
volatile u_char *cp;
if (argc < 3)
return CMD_RET_USAGE;
/* Check for a size spefication.
* Defaults to long if no or incorrect specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 0)
return 1;
/* Address is always specified.
*/
addr = simple_strtoul(argv[1], NULL, 16);
/* Length is the number of objects, not number of bytes.
*/
length = simple_strtoul(argv[2], NULL, 16);
/* We want to optimize the loops to run as fast as possible.
* If we have only one object, just run infinite loops.
*/
if (length == 1) {
if (size == 4) {
longp = (uint *)addr;
for (;;)
i = *longp;
}
if (size == 2) {
shortp = (ushort *)addr;
for (;;)
i = *shortp;
}
cp = (u_char *)addr;
for (;;)
i = *cp;
}
if (size == 4) {
for (;;) {
longp = (uint *)addr;
i = length;
while (i-- > 0)
*longp++;
}
}
if (size == 2) {
for (;;) {
shortp = (ushort *)addr;
i = length;
while (i-- > 0)
*shortp++;
}
}
for (;;) {
cp = (u_char *)addr;
i = length;
while (i-- > 0)
*cp++;
}
}
#ifdef CONFIG_LOOPW
int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, length, i, data;
int size;
volatile uint *longp;
volatile ushort *shortp;
volatile u_char *cp;
if (argc < 4)
return CMD_RET_USAGE;
/* Check for a size spefication.
* Defaults to long if no or incorrect specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 0)
return 1;
/* Address is always specified.
*/
addr = simple_strtoul(argv[1], NULL, 16);
/* Length is the number of objects, not number of bytes.
*/
length = simple_strtoul(argv[2], NULL, 16);
/* data to write */
data = simple_strtoul(argv[3], NULL, 16);
/* We want to optimize the loops to run as fast as possible.
* If we have only one object, just run infinite loops.
*/
if (length == 1) {
if (size == 4) {
longp = (uint *)addr;
for (;;)
*longp = data;
}
if (size == 2) {
shortp = (ushort *)addr;
for (;;)
*shortp = data;
}
cp = (u_char *)addr;
for (;;)
*cp = data;
}
if (size == 4) {
for (;;) {
longp = (uint *)addr;
i = length;
while (i-- > 0)
*longp++ = data;
}
}
if (size == 2) {
for (;;) {
shortp = (ushort *)addr;
i = length;
while (i-- > 0)
*shortp++ = data;
}
}
for (;;) {
cp = (u_char *)addr;
i = length;
while (i-- > 0)
*cp++ = data;
}
}
#endif /* CONFIG_LOOPW */
/*
* Perform a memory test. A more complete alternative test can be
* configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
* interrupted by ctrl-c or by a failure of one of the sub-tests.
*/
static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
vu_long *addr, *start, *end;
ulong val;
ulong readback;
ulong errs = 0;
int iterations = 1;
int iteration_limit;
#if defined(CONFIG_SYS_ALT_MEMTEST)
vu_long len;
vu_long offset;
vu_long test_offset;
vu_long pattern;
vu_long temp;
vu_long anti_pattern;
vu_long num_words;
#if defined(CONFIG_SYS_MEMTEST_SCRATCH)
vu_long *dummy = (vu_long*)CONFIG_SYS_MEMTEST_SCRATCH;
#else
vu_long *dummy = NULL; /* yes, this is address 0x0, not NULL */
#endif
int j;
static const ulong bitpattern[] = {
0x00000001, /* single bit */
0x00000003, /* two adjacent bits */
0x00000007, /* three adjacent bits */
0x0000000F, /* four adjacent bits */
0x00000005, /* two non-adjacent bits */
0x00000015, /* three non-adjacent bits */
0x00000055, /* four non-adjacent bits */
0xaaaaaaaa, /* alternating 1/0 */
};
#else
ulong incr;
ulong pattern;
#endif
if (argc > 1)
start = (ulong *)simple_strtoul(argv[1], NULL, 16);
else
start = (ulong *)CONFIG_SYS_MEMTEST_START;
if (argc > 2)
end = (ulong *)simple_strtoul(argv[2], NULL, 16);
else
end = (ulong *)(CONFIG_SYS_MEMTEST_END);
if (argc > 3)
pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
else
pattern = 0;
if (argc > 4)
iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16);
else
iteration_limit = 0;
#if defined(CONFIG_SYS_ALT_MEMTEST)
printf ("Testing %08x ... %08x:\n", (uint)start, (uint)end);
debug("%s:%d: start 0x%p end 0x%p\n",
__FUNCTION__, __LINE__, start, end);
for (;;) {
if (ctrlc()) {
putc ('\n');
return 1;
}
if (iteration_limit && iterations > iteration_limit) {
printf("Tested %d iteration(s) with %lu errors.\n",
iterations-1, errs);
return errs != 0;
}
printf("Iteration: %6d\r", iterations);
debug("\n");
iterations++;
/*
* Data line test: write a pattern to the first
* location, write the 1's complement to a 'parking'
* address (changes the state of the data bus so a
* floating bus doen't give a false OK), and then
* read the value back. Note that we read it back
* into a variable because the next time we read it,
* it might be right (been there, tough to explain to
* the quality guys why it prints a failure when the
* "is" and "should be" are obviously the same in the
* error message).
*
* Rather than exhaustively testing, we test some
* patterns by shifting '1' bits through a field of
* '0's and '0' bits through a field of '1's (i.e.
* pattern and ~pattern).
*/
addr = start;
for (j = 0; j < sizeof(bitpattern)/sizeof(bitpattern[0]); j++) {
val = bitpattern[j];
for(; val != 0; val <<= 1) {
*addr = val;
*dummy = ~val; /* clear the test data off of the bus */
readback = *addr;
if(readback != val) {
printf ("FAILURE (data line): "
"expected %08lx, actual %08lx\n",
val, readback);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
*addr = ~val;
*dummy = val;
readback = *addr;
if(readback != ~val) {
printf ("FAILURE (data line): "
"Is %08lx, should be %08lx\n",
readback, ~val);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
}
}
/*
* Based on code whose Original Author and Copyright
* information follows: Copyright (c) 1998 by Michael
* Barr. This software is placed into the public
* domain and may be used for any purpose. However,
* this notice must not be changed or removed and no
* warranty is either expressed or implied by its
* publication or distribution.
*/
/*
* Address line test
*
* Description: Test the address bus wiring in a
* memory region by performing a walking
* 1's test on the relevant bits of the
* address and checking for aliasing.
* This test will find single-bit
* address failures such as stuck -high,
* stuck-low, and shorted pins. The base
* address and size of the region are
* selected by the caller.
*
* Notes: For best results, the selected base
* address should have enough LSB 0's to
* guarantee single address bit changes.
* For example, to test a 64-Kbyte
* region, select a base address on a
* 64-Kbyte boundary. Also, select the
* region size as a power-of-two if at
* all possible.
*
* Returns: 0 if the test succeeds, 1 if the test fails.
*/
len = ((ulong)end - (ulong)start)/sizeof(vu_long);
pattern = (vu_long) 0xaaaaaaaa;
anti_pattern = (vu_long) 0x55555555;
debug("%s:%d: length = 0x%.8lx\n",
__FUNCTION__, __LINE__,
len);
/*
* Write the default pattern at each of the
* power-of-two offsets.
*/
for (offset = 1; offset < len; offset <<= 1) {
start[offset] = pattern;
}
/*
* Check for address bits stuck high.
*/
test_offset = 0;
start[test_offset] = anti_pattern;
for (offset = 1; offset < len; offset <<= 1) {
temp = start[offset];
if (temp != pattern) {
printf ("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
" expected 0x%.8lx, actual 0x%.8lx\n",
(ulong)&start[offset], pattern, temp);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
}
start[test_offset] = pattern;
WATCHDOG_RESET();
/*
* Check for addr bits stuck low or shorted.
*/
for (test_offset = 1; test_offset < len; test_offset <<= 1) {
start[test_offset] = anti_pattern;
for (offset = 1; offset < len; offset <<= 1) {
temp = start[offset];
if ((temp != pattern) && (offset != test_offset)) {
printf ("\nFAILURE: Address bit stuck low or shorted @"
" 0x%.8lx: expected 0x%.8lx, actual 0x%.8lx\n",
(ulong)&start[offset], pattern, temp);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
}
start[test_offset] = pattern;
}
/*
* Description: Test the integrity of a physical
* memory device by performing an
* increment/decrement test over the
* entire region. In the process every
* storage bit in the device is tested
* as a zero and a one. The base address
* and the size of the region are
* selected by the caller.
*
* Returns: 0 if the test succeeds, 1 if the test fails.
*/
num_words = ((ulong)end - (ulong)start)/sizeof(vu_long) + 1;
/*
* Fill memory with a known pattern.
*/
for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
WATCHDOG_RESET();
start[offset] = pattern;
}
/*
* Check each location and invert it for the second pass.
*/
for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
WATCHDOG_RESET();
temp = start[offset];
if (temp != pattern) {
printf ("\nFAILURE (read/write) @ 0x%.8lx:"
" expected 0x%.8lx, actual 0x%.8lx)\n",
(ulong)&start[offset], pattern, temp);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
anti_pattern = ~pattern;
start[offset] = anti_pattern;
}
/*
* Check each location for the inverted pattern and zero it.
*/
for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
WATCHDOG_RESET();
anti_pattern = ~pattern;
temp = start[offset];
if (temp != anti_pattern) {
printf ("\nFAILURE (read/write): @ 0x%.8lx:"
" expected 0x%.8lx, actual 0x%.8lx)\n",
(ulong)&start[offset], anti_pattern, temp);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
start[offset] = 0;
}
}
#else /* The original, quickie test */
incr = 1;
for (;;) {
if (ctrlc()) {
putc ('\n');
return 1;
}
if (iteration_limit && iterations > iteration_limit) {
printf("Tested %d iteration(s) with %lu errors.\n",
iterations-1, errs);
return errs != 0;
}
++iterations;
printf ("\rPattern %08lX Writing..."
"%12s"
"\b\b\b\b\b\b\b\b\b\b",
pattern, "");
for (addr=start,val=pattern; addr<end; addr++) {
WATCHDOG_RESET();
*addr = val;
val += incr;
}
puts ("Reading...");
for (addr=start,val=pattern; addr<end; addr++) {
WATCHDOG_RESET();
readback = *addr;
if (readback != val) {
printf ("\nMem error @ 0x%08X: "
"found %08lX, expected %08lX\n",
(uint)(uintptr_t)addr, readback, val);
errs++;
if (ctrlc()) {
putc ('\n');
return 1;
}
}
val += incr;
}
/*
* Flip the pattern each time to make lots of zeros and
* then, the next time, lots of ones. We decrement
* the "negative" patterns and increment the "positive"
* patterns to preserve this feature.
*/
if(pattern & 0x80000000) {
pattern = -pattern; /* complement & increment */
}
else {
pattern = ~pattern;
}
incr = -incr;
}
#endif
return 0; /* not reached */
}
/* Modify memory.
*
* Syntax:
* mm{.b, .w, .l} {addr}
* nm{.b, .w, .l} {addr}
*/
static int
mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
{
ulong addr, i;
int nbytes, size;
if (argc != 2)
return CMD_RET_USAGE;
#ifdef CONFIG_BOOT_RETRY_TIME
reset_cmd_timeout(); /* got a good command to get here */
#endif
/* We use the last specified parameters, unless new ones are
* entered.
*/
addr = mm_last_addr;
size = mm_last_size;
if ((flag & CMD_FLAG_REPEAT) == 0) {
/* New command specified. Check for a size specification.
* Defaults to long if no or incorrect specification.
*/
if ((size = cmd_get_data_size(argv[0], 4)) < 0)
return 1;
/* Address is specified since argc > 1
*/
addr = simple_strtoul(argv[1], NULL, 16);
addr += base_address;
}
#ifdef CONFIG_HAS_DATAFLASH
if (addr_dataflash(addr)){
puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
return 0;
}
#endif
#ifdef CONFIG_BLACKFIN
if (addr_bfin_on_chip_mem(addr)) {
puts ("Can't modify L1 instruction in place. Use cp instead.\n\r");
return 0;
}
#endif
/* Print the address, followed by value. Then accept input for
* the next value. A non-converted value exits.
*/
do {
printf("%08lx:", addr);
if (size == 4)
printf(" %08x", *((uint *)addr));
else if (size == 2)
printf(" %04x", *((ushort *)addr));
else
printf(" %02x", *((u_char *)addr));
nbytes = readline (" ? ");
if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
/* <CR> pressed as only input, don't modify current
* location and move to next. "-" pressed will go back.
*/
if (incrflag)
addr += nbytes ? -size : size;
nbytes = 1;
#ifdef CONFIG_BOOT_RETRY_TIME
reset_cmd_timeout(); /* good enough to not time out */
#endif
}
#ifdef CONFIG_BOOT_RETRY_TIME
else if (nbytes == -2) {
break; /* timed out, exit the command */
}
#endif
else {
char *endp;
i = simple_strtoul(console_buffer, &endp, 16);
nbytes = endp - console_buffer;
if (nbytes) {
#ifdef CONFIG_BOOT_RETRY_TIME
/* good enough to not time out
*/
reset_cmd_timeout();
#endif
if (size == 4)
*((uint *)addr) = i;
else if (size == 2)
*((ushort *)addr) = i;
else
*((u_char *)addr) = i;
if (incrflag)
addr += size;
}
}
} while (nbytes);
mm_last_addr = addr;
mm_last_size = size;
return 0;
}
#ifdef CONFIG_CMD_CRC32
#ifndef CONFIG_CRC32_VERIFY
static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, length;
ulong crc;
ulong *ptr;
if (argc < 3)
return CMD_RET_USAGE;
addr = simple_strtoul (argv[1], NULL, 16);
addr += base_address;
length = simple_strtoul (argv[2], NULL, 16);
crc = crc32_wd (0, (const uchar *) addr, length, CHUNKSZ_CRC32);
printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
addr, addr + length - 1, crc);
if (argc > 3) {
ptr = (ulong *) simple_strtoul (argv[3], NULL, 16);
*ptr = crc;
}
return 0;
}
#else /* CONFIG_CRC32_VERIFY */
int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, length;
ulong crc;
ulong *ptr;
ulong vcrc;
int verify;
int ac;
char * const *av;
if (argc < 3) {
usage:
return CMD_RET_USAGE;
}
av = argv + 1;
ac = argc - 1;
if (strcmp(*av, "-v") == 0) {
verify = 1;
av++;
ac--;
if (ac < 3)
goto usage;
} else
verify = 0;
addr = simple_strtoul(*av++, NULL, 16);
addr += base_address;
length = simple_strtoul(*av++, NULL, 16);
crc = crc32_wd (0, (const uchar *) addr, length, CHUNKSZ_CRC32);
if (!verify) {
printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
addr, addr + length - 1, crc);
if (ac > 2) {
ptr = (ulong *) simple_strtoul (*av++, NULL, 16);
*ptr = crc;
}
} else {
vcrc = simple_strtoul(*av++, NULL, 16);
if (vcrc != crc) {
printf ("CRC32 for %08lx ... %08lx ==> %08lx != %08lx ** ERROR **\n",
addr, addr + length - 1, crc, vcrc);
return 1;
}
}
return 0;
}
#endif /* CONFIG_CRC32_VERIFY */
#endif
/**************************************************/
U_BOOT_CMD(
md, 3, 1, do_mem_md,
"memory display",
"[.b, .w, .l] address [# of objects]"
);
U_BOOT_CMD(
mm, 2, 1, do_mem_mm,
"memory modify (auto-incrementing address)",
"[.b, .w, .l] address"
);
U_BOOT_CMD(
nm, 2, 1, do_mem_nm,
"memory modify (constant address)",
"[.b, .w, .l] address"
);
U_BOOT_CMD(
mw, 4, 1, do_mem_mw,
"memory write (fill)",
"[.b, .w, .l] address value [count]"
);
U_BOOT_CMD(
cp, 4, 1, do_mem_cp,
"memory copy",
"[.b, .w, .l] source target count"
);
U_BOOT_CMD(
cmp, 4, 1, do_mem_cmp,
"memory compare",
"[.b, .w, .l] addr1 addr2 count"
);
#ifdef CONFIG_CMD_CRC32
#ifndef CONFIG_CRC32_VERIFY
U_BOOT_CMD(
crc32, 4, 1, do_mem_crc,
"checksum calculation",
"address count [addr]\n - compute CRC32 checksum [save at addr]"
);
#else /* CONFIG_CRC32_VERIFY */
U_BOOT_CMD(
crc32, 5, 1, do_mem_crc,
"checksum calculation",
"address count [addr]\n - compute CRC32 checksum [save at addr]\n"
"-v address count crc\n - verify crc of memory area"
);
#endif /* CONFIG_CRC32_VERIFY */
#endif
#ifdef CONFIG_CMD_MEMINFO
__weak void board_show_dram(ulong size)
{
puts("DRAM: ");
print_size(size, "\n");
}
static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
board_show_dram(gd->ram_size);
return 0;
}
#endif
U_BOOT_CMD(
base, 2, 1, do_mem_base,
"print or set address offset",
"\n - print address offset for memory commands\n"
"base off\n - set address offset for memory commands to 'off'"
);
U_BOOT_CMD(
loop, 3, 1, do_mem_loop,
"infinite loop on address range",
"[.b, .w, .l] address number_of_objects"
);
#ifdef CONFIG_LOOPW
U_BOOT_CMD(
loopw, 4, 1, do_mem_loopw,
"infinite write loop on address range",
"[.b, .w, .l] address number_of_objects data_to_write"
);
#endif /* CONFIG_LOOPW */
U_BOOT_CMD(
mtest, 5, 1, do_mem_mtest,
"simple RAM read/write test",
"[start [end [pattern [iterations]]]]"
);
#ifdef CONFIG_MX_CYCLIC
U_BOOT_CMD(
mdc, 4, 1, do_mem_mdc,
"memory display cyclic",
"[.b, .w, .l] address count delay(ms)"
);
U_BOOT_CMD(
mwc, 4, 1, do_mem_mwc,
"memory write cyclic",
"[.b, .w, .l] address value delay(ms)"
);
#endif /* CONFIG_MX_CYCLIC */
#ifdef CONFIG_CMD_MEMINFO
U_BOOT_CMD(
meminfo, 3, 1, do_mem_info,
"display memory information",
""
);
#endif