f1f532084a
This patch does probably too much, but it's hard (and very cumbersome/time consuming) to break it out. What is does is this: * each command has one short description, e.g. "list MUX configuration" * made sure the short descriptions start lowercase * each command has one usage. That string contains just the options, e.g. "[-npn]". It's not part of the long help text. * that is, it doesn't say "[OPTIONS]" anymore, every usable option is listed by character in this (short) option string (the long description is in the long help text, as before) * help texts have been reworked, to make them - sometimes smaller - sometimes describe the options better - more often present themselves in a nicer format * all long help texts are now created with BUSYBOX_CMD_HELP_ macros, no more 'static const __maybe_unused char cmd_foobar_help[]' * made sure the long help texts starts uppercase * because cmdtp->name and cmdtp->opts together provide the new usage, all "Usage: foobar" texts have been removed from the long help texts * BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this is nicer in the source code * BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself * made sure no line gets longer than 77 characters * delibertely renamed cmdtp->usage, so that we can get compile-time errors (e.g. in out-of-tree modules that use register_command() * the 'help' command can now always emit the usage, even without compiled long help texts * 'help -v' gives a list of commands with their short description, this is similar like the old "help" command before my patchset * 'help -a' gives out help of all commands Signed-off-by: Holger Schurig <holgerschurig@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
356 lines
8.6 KiB
C
356 lines
8.6 KiB
C
/*
|
|
* Based on nandtest.c source in mtd-utils package.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <fs.h>
|
|
#include <errno.h>
|
|
#include <malloc.h>
|
|
#include <getopt.h>
|
|
#include <ioctl.h>
|
|
#include <linux/mtd/mtd-abi.h>
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
#include <progress.h>
|
|
|
|
/* Max ECC Bits that can be corrected */
|
|
#define MAX_ECC_BITS 8
|
|
|
|
/*
|
|
* Structures for flash memory information.
|
|
*/
|
|
static struct region_info_user memregion;
|
|
static struct mtd_info_user meminfo;
|
|
static struct mtd_ecc_stats oldstats, newstats;
|
|
|
|
static int fd, seed;
|
|
/* Markbad option flag */
|
|
static int markbad;
|
|
|
|
/* ECC-Calculation stats */
|
|
static unsigned int ecc_stats[MAX_ECC_BITS];
|
|
static unsigned int ecc_stats_over;
|
|
static unsigned int ecc_failed_cnt;
|
|
|
|
/*
|
|
* Implementation of pwrite with lseek and write.
|
|
*/
|
|
static ssize_t __pwrite(int fd, const void *buf,
|
|
size_t count, loff_t offset, loff_t length)
|
|
{
|
|
ssize_t ret;
|
|
|
|
/* Write buf to flash */
|
|
ret = pwrite(fd, buf, count, offset);
|
|
if (ret < 0) {
|
|
perror("pwrite");
|
|
if (markbad) {
|
|
printf("\nMark block bad at 0x%08llx\n",
|
|
offset + memregion.offset);
|
|
ioctl(fd, MEMSETBADBLOCK, &offset);
|
|
init_progression_bar(length);
|
|
show_progress(offset);
|
|
}
|
|
}
|
|
|
|
flush(fd);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Erase and write function.
|
|
* Param ofs: offset on flash_device.
|
|
* Param data: data to write on flash.
|
|
* Param rbuf: pointer to allocated buffer to copy readed data.
|
|
* Param length: length of testing area
|
|
*/
|
|
static int erase_and_write(loff_t ofs, unsigned char *data,
|
|
unsigned char *rbuf, loff_t length)
|
|
{
|
|
struct erase_info_user er;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
er.start = ofs;
|
|
er.length = meminfo.erasesize;
|
|
|
|
ret = erase(fd, er.length, er.start);
|
|
if (ret < 0) {
|
|
perror("\nerase");
|
|
printf("Could't not erase flash at 0x%08x length 0x%08x.\n",
|
|
er.start, er.length);
|
|
return ret;
|
|
}
|
|
|
|
for (i = 0; i < meminfo.erasesize;
|
|
i += meminfo.writesize) {
|
|
/* Write data to given offset */
|
|
__pwrite(fd, data + i, meminfo.writesize,
|
|
ofs + i, length);
|
|
|
|
/* Read data from offset */
|
|
pread(fd, rbuf + i, meminfo.writesize, ofs + i);
|
|
|
|
ret = ioctl(fd, ECCGETSTATS, &newstats);
|
|
if (ret < 0) {
|
|
perror("\nECCGETSTATS");
|
|
return ret;
|
|
}
|
|
|
|
if (newstats.corrected > oldstats.corrected) {
|
|
printf("\n %d bit(s) ECC corrected at page 0x%08llx\n",
|
|
newstats.corrected - oldstats.corrected,
|
|
ofs + memregion.offset + i);
|
|
init_progression_bar(length);
|
|
show_progress(ofs + i);
|
|
if ((newstats.corrected-oldstats.corrected) >=
|
|
MAX_ECC_BITS) {
|
|
/* Increment ECC stats that
|
|
* are over MAX_ECC_BITS */
|
|
ecc_stats_over++;
|
|
} else {
|
|
/* Increment ECC stat value */
|
|
ecc_stats[(newstats.corrected -
|
|
oldstats.corrected) - 1]++;
|
|
}
|
|
/* Set oldstats to newstats */
|
|
oldstats.corrected = newstats.corrected;
|
|
}
|
|
if (newstats.failed > oldstats.failed) {
|
|
printf("\nECC failed at page 0x%08llx\n",
|
|
ofs + memregion.offset + i);
|
|
init_progression_bar(length);
|
|
show_progress(ofs + i);
|
|
oldstats.failed = newstats.failed;
|
|
ecc_failed_cnt++;
|
|
}
|
|
}
|
|
|
|
/* Compared written data with read data.
|
|
* If data is not identical, display a detailed
|
|
* debugging information. */
|
|
ret = memcmp(data, rbuf, meminfo.erasesize);
|
|
if (ret < 0) {
|
|
printf("\ncompare failed. seed %d\n", seed);
|
|
for (i = 0; i < meminfo.erasesize; i++) {
|
|
if (data[i] != rbuf[i])
|
|
printf("Byte 0x%x is %02x should be %02x\n",
|
|
i, rbuf[i], data[i]);
|
|
}
|
|
return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Print stats of nandtest. */
|
|
static void print_stats(int nr_passes, int length)
|
|
{
|
|
unsigned int i;
|
|
printf("-------- Summary --------\n");
|
|
printf("Tested blocks : %d\n", (length/meminfo.erasesize)
|
|
* nr_passes);
|
|
|
|
for (i = 0; i < MAX_ECC_BITS; i++)
|
|
printf("ECC %d bit error(s) : %u\n", i + 1, ecc_stats[i]);
|
|
|
|
printf("ECC >%d bit error(s) : %u\n", MAX_ECC_BITS, ecc_stats_over);
|
|
printf("ECC corrections failed : %u\n", ecc_failed_cnt);
|
|
printf("-------------------------\n");
|
|
}
|
|
|
|
/* Main program. */
|
|
static int do_nandtest(int argc, char *argv[])
|
|
{
|
|
int opt, do_nandtest_dev = -1, ret = -1;
|
|
loff_t flash_offset = 0, test_ofs, length = 0;
|
|
unsigned int nr_iterations = 1, iter;
|
|
unsigned char *wbuf, *rbuf;
|
|
|
|
ecc_failed_cnt = 0;
|
|
ecc_stats_over = 0;
|
|
markbad = 0;
|
|
fd = -1;
|
|
|
|
memset(ecc_stats, 0, sizeof(*ecc_stats));
|
|
|
|
while ((opt = getopt(argc, argv, "ms:i:o:l:t")) > 0) {
|
|
switch (opt) {
|
|
case 'm':
|
|
markbad = 1;
|
|
break;
|
|
case 's':
|
|
seed = simple_strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 'i':
|
|
nr_iterations = simple_strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 'o':
|
|
flash_offset = simple_strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 'l':
|
|
length = simple_strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 't':
|
|
do_nandtest_dev = 1;
|
|
break;
|
|
default:
|
|
return COMMAND_ERROR_USAGE;
|
|
}
|
|
}
|
|
|
|
/* Check if no device is given */
|
|
if (optind >= argc)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
if (do_nandtest_dev == -1) {
|
|
printf("Please add -t parameter to start nandtest.\n");
|
|
return 0;
|
|
}
|
|
|
|
printf("Open device %s\n", argv[optind]);
|
|
|
|
fd = open(argv[optind], O_RDWR);
|
|
if (fd < 0) {
|
|
perror("open");
|
|
return COMMAND_ERROR_USAGE;
|
|
}
|
|
|
|
/* Getting flash information. */
|
|
|
|
ret = ioctl(fd, MEMGETINFO, &meminfo);
|
|
if (ret < 0) {
|
|
perror("MEMGETINFO");
|
|
goto err;
|
|
}
|
|
|
|
ret = ioctl(fd, MEMGETREGIONINFO, &memregion);
|
|
if (ret < 0) {
|
|
perror("MEMGETREGIONINFO");
|
|
goto err;
|
|
}
|
|
|
|
ret = ioctl(fd, ECCGETSTATS, &oldstats);
|
|
if (ret < 0) {
|
|
perror("ECCGETSTATS");
|
|
goto err;
|
|
}
|
|
|
|
if (!length) {
|
|
length = meminfo.size;
|
|
length -= flash_offset;
|
|
}
|
|
|
|
printf("Flash offset: 0x%08llx\n",
|
|
flash_offset + memregion.offset);
|
|
printf("Length: 0x%08llx\n", length);
|
|
printf("End address: 0x%08llx\n",
|
|
flash_offset + length + memregion.offset);
|
|
printf("Erasesize: 0x%08x\n", meminfo.erasesize);
|
|
printf("Starting nandtest...\n");
|
|
|
|
if (!IS_ALIGNED(meminfo.erasesize, meminfo.writesize)) {
|
|
printf("Erasesize 0x%08x is not a multiple "
|
|
"of writesize 0x%08x.\n"
|
|
"Please check driver implementation\n",
|
|
meminfo.erasesize, meminfo.writesize);
|
|
goto err;
|
|
}
|
|
if (!IS_ALIGNED(flash_offset, meminfo.erasesize)) {
|
|
printf("Offset 0x%08llx not multiple of erase size 0x%08x\n",
|
|
flash_offset, meminfo.erasesize);
|
|
goto err;
|
|
}
|
|
if (!IS_ALIGNED(length, meminfo.erasesize)) {
|
|
printf("Length 0x%08llx not multiple of erase size 0x%08x\n",
|
|
length, meminfo.erasesize);
|
|
goto err;
|
|
}
|
|
if (length + flash_offset > meminfo.size) {
|
|
printf("Length 0x%08llx + offset 0x%08llx exceeds "
|
|
"device size 0x%08llx\n", length,
|
|
flash_offset, meminfo.size);
|
|
goto err;
|
|
}
|
|
|
|
wbuf = malloc(meminfo.erasesize * 2);
|
|
if (!wbuf) {
|
|
printf("Could not allocate %d bytes for buffer\n",
|
|
meminfo.erasesize * 2);
|
|
goto err;
|
|
}
|
|
rbuf = wbuf + meminfo.erasesize;
|
|
|
|
for (iter = 0; iter < nr_iterations; iter++) {
|
|
init_progression_bar(length);
|
|
for (test_ofs = 0;
|
|
test_ofs < length;
|
|
test_ofs += meminfo.erasesize) {
|
|
show_progress(test_ofs);
|
|
srand(seed);
|
|
seed = rand();
|
|
|
|
if (ioctl(fd, MEMGETBADBLOCK, &test_ofs)) {
|
|
printf("\nBad block at 0x%08llx\n",
|
|
test_ofs + memregion.offset);
|
|
init_progression_bar(length);
|
|
show_progress(test_ofs);
|
|
continue;
|
|
}
|
|
|
|
get_random_bytes(wbuf, meminfo.erasesize);
|
|
ret = erase_and_write(test_ofs, wbuf,
|
|
rbuf, length);
|
|
if (ret < 0)
|
|
goto err2;
|
|
}
|
|
show_progress(test_ofs);
|
|
printf("\nFinished pass %d successfully\n", iter + 1);
|
|
}
|
|
|
|
print_stats(nr_iterations, length);
|
|
|
|
ret = close(fd);
|
|
if (ret < 0) {
|
|
perror("close");
|
|
goto err2;
|
|
}
|
|
|
|
free(wbuf);
|
|
|
|
return 0;
|
|
err2:
|
|
free(wbuf);
|
|
err:
|
|
printf("Error occurred.\n");
|
|
close(fd);
|
|
return 1;
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(nandtest)
|
|
BAREBOX_CMD_HELP_TEXT("Options:")
|
|
BAREBOX_CMD_HELP_OPT ("-t", "Really do a nandtest on device")
|
|
BAREBOX_CMD_HELP_OPT ("-m", "Mark blocks bad if they appear so")
|
|
BAREBOX_CMD_HELP_OPT ("-s SEED", "supply random seed")
|
|
BAREBOX_CMD_HELP_OPT ("-i ITERATIONS", "nNumber of iterations")
|
|
BAREBOX_CMD_HELP_OPT ("-o OFFS", "start offset on flash")
|
|
BAREBOX_CMD_HELP_OPT ("-l LEN", "length of flash to test")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(nandtest)
|
|
.cmd = do_nandtest,
|
|
BAREBOX_CMD_DESC("NAND flash memory test")
|
|
BAREBOX_CMD_OPTS("[-tmsiol] NANDDEVICE")
|
|
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
|
|
BAREBOX_CMD_HELP(cmd_nandtest_help)
|
|
BAREBOX_CMD_END
|