blob: 0636e1e100738025da9d7f739c94b63e1afe1cec [file] [log] [blame]
/*
* (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;
/* align_address - align address to word/long
* INPUT:
* addr - address to align
* size - align address to this size
*/
static ulong align_address(ulong addr, int size) {
/* Unaligned memory access Workaround:
* if size = long/word, & address not aligned to long/word (respectively)
* align address to meet requested size */
if((size > 1) && (addr % size > 0)) {
printf("Error: Requested unaligned memory address (0x%x)\n", (unsigned int)addr);
addr &= ~(size - 1);
printf("Using aligned address (0x%x)\n", (unsigned int)addr );
}
return addr;
}
/* 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);
}
addr = align_address(addr, size);
#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;
addr = align_address(addr, size);
/* 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;
addr1 = align_address(addr1, size);
addr2 = align_address(addr2, size);
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;
addr = align_address(addr, size);
dest = align_address(dest, size);
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);
start =(ulong *)align_address((ulong)start, 4);
end = (ulong *)align_address((ulong)end, 4);
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;
}
addr = align_address(addr, size);
#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