u-boot/common/cmd_mem.c
Andrew Bradford ea11b401b5 meminfo cmd: Enable printing >=4GiB SDRAM sizes
gd->ram_size is stored as phys_size_t type which can be bigger than an
unsigned long on some architectures.  When using unsigned long type,
SDRAM of 4GiB or larger will not print the correct size, but using
phys_size_t will.

Signed-off-by: Andrew Bradford <andrew.bradford@kodakalaris.com>
2015-05-28 08:18:21 -04:00

1409 lines
30 KiB
C

/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* Memory Functions
*
* Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
*/
#include <common.h>
#include <bootretry.h>
#include <cli.h>
#include <command.h>
#ifdef CONFIG_HAS_DATAFLASH
#include <dataflash.h>
#endif
#include <hash.h>
#include <inttypes.h>
#include <mapmem.h>
#include <watchdog.h>
#include <asm/io.h>
#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
#ifndef CONFIG_SYS_MEMTEST_SCRATCH
#define CONFIG_SYS_MEMTEST_SCRATCH 0
#endif
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 ulong dp_last_addr, dp_last_size;
static ulong dp_last_length = 0x40;
static ulong mm_last_addr, mm_last_size;
static ulong base_address = 0;
/* Memory Display
*
* Syntax:
* md{.b, .w, .l, .q} {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
{
ulong bytes = size * length;
const void *buf = map_sysmem(addr, bytes);
/* Print the lines. */
print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
addr += bytes;
unmap_sysmem(buf);
}
#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[])
{
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
u64 writeval;
#else
ulong writeval;
#endif
ulong addr, count;
int size;
void *buf, *start;
ulong bytes;
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.
*/
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
writeval = simple_strtoull(argv[2], NULL, 16);
#else
writeval = simple_strtoul(argv[2], NULL, 16);
#endif
/* Count ? */
if (argc == 4) {
count = simple_strtoul(argv[3], NULL, 16);
} else {
count = 1;
}
bytes = size * count;
start = map_sysmem(addr, bytes);
buf = start;
while (count-- > 0) {
if (size == 4)
*((u32 *)buf) = (u32)writeval;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
else if (size == 8)
*((u64 *)buf) = (u64)writeval;
#endif
else if (size == 2)
*((u16 *)buf) = (u16)writeval;
else
*((u8 *)buf) = (u8)writeval;
buf += size;
}
unmap_sysmem(start);
return 0;
}
#ifdef CONFIG_MX_CYCLIC
static 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;
}
static 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, bytes;
int size;
int rcode = 0;
const char *type;
const void *buf1, *buf2, *base;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
u64 word1, word2;
#else
ulong word1, word2;
#endif
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 == 8 ? "double word" :
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
bytes = size * count;
base = buf1 = map_sysmem(addr1, bytes);
buf2 = map_sysmem(addr2, bytes);
for (ngood = 0; ngood < count; ++ngood) {
if (size == 4) {
word1 = *(u32 *)buf1;
word2 = *(u32 *)buf2;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
} else if (size == 8) {
word1 = *(u64 *)buf1;
word2 = *(u64 *)buf2;
#endif
} else if (size == 2) {
word1 = *(u16 *)buf1;
word2 = *(u16 *)buf2;
} else {
word1 = *(u8 *)buf1;
word2 = *(u8 *)buf2;
}
if (word1 != word2) {
ulong offset = buf1 - base;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
printf("%s at 0x%p (%#0*"PRIx64") != %s at 0x%p (%#0*"
PRIx64 ")\n",
type, (void *)(addr1 + offset), size, word1,
type, (void *)(addr2 + offset), size, word2);
#else
printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
type, (ulong)(addr1 + offset), size, word1,
type, (ulong)(addr2 + offset), size, word2);
#endif
rcode = 1;
break;
}
buf1 += size;
buf2 += size;
/* reset watchdog from time to time */
if ((ngood % (64 << 10)) == 0)
WATCHDOG_RESET();
}
unmap_sysmem(buf1);
unmap_sysmem(buf2);
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, bytes;
int size;
const void *src;
void *buf;
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
bytes = size * count;
buf = map_sysmem(dest, bytes);
src = map_sysmem(addr, bytes);
while (count-- > 0) {
if (size == 4)
*((u32 *)buf) = *((u32 *)src);
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
else if (size == 8)
*((u64 *)buf) = *((u64 *)src);
#endif
else if (size == 2)
*((u16 *)buf) = *((u16 *)src);
else
*((u8 *)buf) = *((u8 *)src);
src += size;
buf += size;
/* reset watchdog from time to time */
if ((count % (64 << 10)) == 0)
WATCHDOG_RESET();
}
unmap_sysmem(buf);
unmap_sysmem(src);
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, bytes;
int size;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
volatile u64 *llp;
#endif
volatile u32 *longp;
volatile u16 *shortp;
volatile u8 *cp;
const void *buf;
if (argc < 3)
return CMD_RET_USAGE;
/*
* 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 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);
bytes = size * length;
buf = map_sysmem(addr, bytes);
/* 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) {
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
if (size == 8) {
llp = (u64 *)buf;
for (;;)
i = *llp;
}
#endif
if (size == 4) {
longp = (u32 *)buf;
for (;;)
i = *longp;
}
if (size == 2) {
shortp = (u16 *)buf;
for (;;)
i = *shortp;
}
cp = (u8 *)buf;
for (;;)
i = *cp;
}
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
if (size == 8) {
for (;;) {
llp = (u64 *)buf;
i = length;
while (i-- > 0)
*llp++;
}
}
#endif
if (size == 4) {
for (;;) {
longp = (u32 *)buf;
i = length;
while (i-- > 0)
*longp++;
}
}
if (size == 2) {
for (;;) {
shortp = (u16 *)buf;
i = length;
while (i-- > 0)
*shortp++;
}
}
for (;;) {
cp = (u8 *)buf;
i = length;
while (i-- > 0)
*cp++;
}
unmap_sysmem(buf);
return 0;
}
#ifdef CONFIG_LOOPW
static int do_mem_loopw(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
ulong addr, length, i, bytes;
int size;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
volatile u64 *llp;
u64 data;
#else
ulong data;
#endif
volatile u32 *longp;
volatile u16 *shortp;
volatile u8 *cp;
void *buf;
if (argc < 4)
return CMD_RET_USAGE;
/*
* 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 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 */
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
data = simple_strtoull(argv[3], NULL, 16);
#else
data = simple_strtoul(argv[3], NULL, 16);
#endif
bytes = size * length;
buf = map_sysmem(addr, bytes);
/* 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) {
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
if (size == 8) {
llp = (u64 *)buf;
for (;;)
*llp = data;
}
#endif
if (size == 4) {
longp = (u32 *)buf;
for (;;)
*longp = data;
}
if (size == 2) {
shortp = (u16 *)buf;
for (;;)
*shortp = data;
}
cp = (u8 *)buf;
for (;;)
*cp = data;
}
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
if (size == 8) {
for (;;) {
llp = (u64 *)buf;
i = length;
while (i-- > 0)
*llp++ = data;
}
}
#endif
if (size == 4) {
for (;;) {
longp = (u32 *)buf;
i = length;
while (i-- > 0)
*longp++ = data;
}
}
if (size == 2) {
for (;;) {
shortp = (u16 *)buf;
i = length;
while (i-- > 0)
*shortp++ = data;
}
}
for (;;) {
cp = (u8 *)buf;
i = length;
while (i-- > 0)
*cp++ = data;
}
}
#endif /* CONFIG_LOOPW */
#ifdef CONFIG_CMD_MEMTEST
static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr,
vu_long *dummy)
{
vu_long *addr;
ulong errs = 0;
ulong val, readback;
int j;
vu_long offset;
vu_long test_offset;
vu_long pattern;
vu_long temp;
vu_long anti_pattern;
vu_long num_words;
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 */
};
num_words = (end_addr - start_addr) / sizeof(vu_long);
/*
* 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 doesn'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 = buf;
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 the bus */
readback = *addr;
if (readback != val) {
printf("FAILURE (data line): "
"expected %08lx, actual %08lx\n",
val, readback);
errs++;
if (ctrlc())
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())
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.
*/
pattern = (vu_long) 0xaaaaaaaa;
anti_pattern = (vu_long) 0x55555555;
debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words);
/*
* Write the default pattern at each of the
* power-of-two offsets.
*/
for (offset = 1; offset < num_words; offset <<= 1)
addr[offset] = pattern;
/*
* Check for address bits stuck high.
*/
test_offset = 0;
addr[test_offset] = anti_pattern;
for (offset = 1; offset < num_words; offset <<= 1) {
temp = addr[offset];
if (temp != pattern) {
printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
" expected 0x%.8lx, actual 0x%.8lx\n",
start_addr + offset*sizeof(vu_long),
pattern, temp);
errs++;
if (ctrlc())
return -1;
}
}
addr[test_offset] = pattern;
WATCHDOG_RESET();
/*
* Check for addr bits stuck low or shorted.
*/
for (test_offset = 1; test_offset < num_words; test_offset <<= 1) {
addr[test_offset] = anti_pattern;
for (offset = 1; offset < num_words; offset <<= 1) {
temp = addr[offset];
if ((temp != pattern) && (offset != test_offset)) {
printf("\nFAILURE: Address bit stuck low or"
" shorted @ 0x%.8lx: expected 0x%.8lx,"
" actual 0x%.8lx\n",
start_addr + offset*sizeof(vu_long),
pattern, temp);
errs++;
if (ctrlc())
return -1;
}
}
addr[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++;
/*
* Fill memory with a known pattern.
*/
for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
WATCHDOG_RESET();
addr[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 = addr[offset];
if (temp != pattern) {
printf("\nFAILURE (read/write) @ 0x%.8lx:"
" expected 0x%.8lx, actual 0x%.8lx)\n",
start_addr + offset*sizeof(vu_long),
pattern, temp);
errs++;
if (ctrlc())
return -1;
}
anti_pattern = ~pattern;
addr[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 = addr[offset];
if (temp != anti_pattern) {
printf("\nFAILURE (read/write): @ 0x%.8lx:"
" expected 0x%.8lx, actual 0x%.8lx)\n",
start_addr + offset*sizeof(vu_long),
anti_pattern, temp);
errs++;
if (ctrlc())
return -1;
}
addr[offset] = 0;
}
return 0;
}
static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr,
vu_long pattern, int iteration)
{
vu_long *end;
vu_long *addr;
ulong errs = 0;
ulong incr, length;
ulong val, readback;
/* Alternate the pattern */
incr = 1;
if (iteration & 1) {
incr = -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;
}
length = (end_addr - start_addr) / sizeof(ulong);
end = buf + length;
printf("\rPattern %08lX Writing..."
"%12s"
"\b\b\b\b\b\b\b\b\b\b",
pattern, "");
for (addr = buf, val = pattern; addr < end; addr++) {
WATCHDOG_RESET();
*addr = val;
val += incr;
}
puts("Reading...");
for (addr = buf, val = pattern; addr < end; addr++) {
WATCHDOG_RESET();
readback = *addr;
if (readback != val) {
ulong offset = addr - buf;
printf("\nMem error @ 0x%08X: "
"found %08lX, expected %08lX\n",
(uint)(uintptr_t)(start_addr + offset*sizeof(vu_long)),
readback, val);
errs++;
if (ctrlc())
return -1;
}
val += incr;
}
return 0;
}
/*
* 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[])
{
ulong start, end;
vu_long *buf, *dummy;
ulong iteration_limit = 0;
int ret;
ulong errs = 0; /* number of errors, or -1 if interrupted */
ulong pattern = 0;
int iteration;
#if defined(CONFIG_SYS_ALT_MEMTEST)
const int alt_test = 1;
#else
const int alt_test = 0;
#endif
start = CONFIG_SYS_MEMTEST_START;
end = CONFIG_SYS_MEMTEST_END;
if (argc > 1)
if (strict_strtoul(argv[1], 16, &start) < 0)
return CMD_RET_USAGE;
if (argc > 2)
if (strict_strtoul(argv[2], 16, &end) < 0)
return CMD_RET_USAGE;
if (argc > 3)
if (strict_strtoul(argv[3], 16, &pattern) < 0)
return CMD_RET_USAGE;
if (argc > 4)
if (strict_strtoul(argv[4], 16, &iteration_limit) < 0)
return CMD_RET_USAGE;
if (end < start) {
printf("Refusing to do empty test\n");
return -1;
}
printf("Testing %08x ... %08x:\n", (uint)start, (uint)end);
debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
start, end);
buf = map_sysmem(start, end - start);
dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long));
for (iteration = 0;
!iteration_limit || iteration < iteration_limit;
iteration++) {
if (ctrlc()) {
errs = -1UL;
break;
}
printf("Iteration: %6d\r", iteration + 1);
debug("\n");
if (alt_test) {
errs = mem_test_alt(buf, start, end, dummy);
} else {
errs = mem_test_quick(buf, start, end, pattern,
iteration);
}
if (errs == -1UL)
break;
}
/*
* Work-around for eldk-4.2 which gives this warning if we try to
* case in the unmap_sysmem() call:
* warning: initialization discards qualifiers from pointer target type
*/
{
void *vbuf = (void *)buf;
void *vdummy = (void *)dummy;
unmap_sysmem(vbuf);
unmap_sysmem(vdummy);
}
if (errs == -1UL) {
/* Memory test was aborted - write a newline to finish off */
putc('\n');
ret = 1;
} else {
printf("Tested %d iteration(s) with %lu errors.\n",
iteration, errs);
ret = errs != 0;
}
return ret;
}
#endif /* CONFIG_CMD_MEMTEST */
/* Modify memory.
*
* Syntax:
* mm{.b, .w, .l, .q} {addr}
* nm{.b, .w, .l, .q} {addr}
*/
static int
mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
{
ulong addr;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
u64 i;
#else
ulong i;
#endif
int nbytes, size;
void *ptr = NULL;
if (argc != 2)
return CMD_RET_USAGE;
bootretry_reset_cmd_timeout(); /* got a good command to get here */
/* 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 {
ptr = map_sysmem(addr, size);
printf("%08lx:", addr);
if (size == 4)
printf(" %08x", *((u32 *)ptr));
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
else if (size == 8)
printf(" %016" PRIx64, *((u64 *)ptr));
#endif
else if (size == 2)
printf(" %04x", *((u16 *)ptr));
else
printf(" %02x", *((u8 *)ptr));
nbytes = cli_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;
/* good enough to not time out */
bootretry_reset_cmd_timeout();
}
#ifdef CONFIG_BOOT_RETRY_TIME
else if (nbytes == -2) {
break; /* timed out, exit the command */
}
#endif
else {
char *endp;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
i = simple_strtoull(console_buffer, &endp, 16);
#else
i = simple_strtoul(console_buffer, &endp, 16);
#endif
nbytes = endp - console_buffer;
if (nbytes) {
/* good enough to not time out
*/
bootretry_reset_cmd_timeout();
if (size == 4)
*((u32 *)ptr) = i;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
else if (size == 8)
*((u64 *)ptr) = i;
#endif
else if (size == 2)
*((u16 *)ptr) = i;
else
*((u8 *)ptr) = i;
if (incrflag)
addr += size;
}
}
} while (nbytes);
if (ptr)
unmap_sysmem(ptr);
mm_last_addr = addr;
mm_last_size = size;
return 0;
}
#ifdef CONFIG_CMD_CRC32
static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int flags = 0;
int ac;
char * const *av;
if (argc < 3)
return CMD_RET_USAGE;
av = argv + 1;
ac = argc - 1;
#ifdef CONFIG_HASH_VERIFY
if (strcmp(*av, "-v") == 0) {
flags |= HASH_FLAG_VERIFY | HASH_FLAG_ENV;
av++;
ac--;
}
#endif
return hash_command("crc32", flags, cmdtp, flag, ac, av);
}
#endif
/**************************************************/
U_BOOT_CMD(
md, 3, 1, do_mem_md,
"memory display",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address [# of objects]"
#else
"[.b, .w, .l] address [# of objects]"
#endif
);
U_BOOT_CMD(
mm, 2, 1, do_mem_mm,
"memory modify (auto-incrementing address)",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address"
#else
"[.b, .w, .l] address"
#endif
);
U_BOOT_CMD(
nm, 2, 1, do_mem_nm,
"memory modify (constant address)",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address"
#else
"[.b, .w, .l] address"
#endif
);
U_BOOT_CMD(
mw, 4, 1, do_mem_mw,
"memory write (fill)",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address value [count]"
#else
"[.b, .w, .l] address value [count]"
#endif
);
U_BOOT_CMD(
cp, 4, 1, do_mem_cp,
"memory copy",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] source target count"
#else
"[.b, .w, .l] source target count"
#endif
);
U_BOOT_CMD(
cmp, 4, 1, do_mem_cmp,
"memory compare",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] addr1 addr2 count"
#else
"[.b, .w, .l] addr1 addr2 count"
#endif
);
#ifdef CONFIG_CMD_CRC32
#ifndef CONFIG_HASH_VERIFY
U_BOOT_CMD(
crc32, 4, 1, do_mem_crc,
"checksum calculation",
"address count [addr]\n - compute CRC32 checksum [save at addr]"
);
#else /* CONFIG_HASH_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_HASH_VERIFY */
#endif
#ifdef CONFIG_CMD_MEMINFO
__weak void board_show_dram(phys_size_t 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",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address number_of_objects"
#else
"[.b, .w, .l] address number_of_objects"
#endif
);
#ifdef CONFIG_LOOPW
U_BOOT_CMD(
loopw, 4, 1, do_mem_loopw,
"infinite write loop on address range",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address number_of_objects data_to_write"
#else
"[.b, .w, .l] address number_of_objects data_to_write"
#endif
);
#endif /* CONFIG_LOOPW */
#ifdef CONFIG_CMD_MEMTEST
U_BOOT_CMD(
mtest, 5, 1, do_mem_mtest,
"simple RAM read/write test",
"[start [end [pattern [iterations]]]]"
);
#endif /* CONFIG_CMD_MEMTEST */
#ifdef CONFIG_MX_CYCLIC
U_BOOT_CMD(
mdc, 4, 1, do_mem_mdc,
"memory display cyclic",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address count delay(ms)"
#else
"[.b, .w, .l] address count delay(ms)"
#endif
);
U_BOOT_CMD(
mwc, 4, 1, do_mem_mwc,
"memory write cyclic",
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
"[.b, .w, .l, .q] address value delay(ms)"
#else
"[.b, .w, .l] address value delay(ms)"
#endif
);
#endif /* CONFIG_MX_CYCLIC */
#ifdef CONFIG_CMD_MEMINFO
U_BOOT_CMD(
meminfo, 3, 1, do_mem_info,
"display memory information",
""
);
#endif