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nandtest: stat ecc per page not per eraseblock 

Collect ecc statistics per page not per eraseblock.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alexander Aring 2012-10-22 09:23:25 +02:00 committed by Sascha Hauer
parent 346b16ba0a
commit f3781cb7b3
1 changed files with 40 additions and 32 deletions
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72
commands/nandtest.c
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@ -96,7 +96,8 @@ static ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset)
static int erase_and_write(off_t ofs, unsigned char *data, unsigned char *rbuf)
{
struct erase_info_user er;
int i, ret;
unsigned int i;
int ret;
printf("\r0x%08x: erasing... ", (unsigned)(ofs + memregion.offset));
@ -111,43 +112,50 @@ static int erase_and_write(off_t ofs, unsigned char *data, unsigned char *rbuf)
return ret;
}
printf("\r0x%08x: writing...", (unsigned)(ofs + memregion.offset));
for (i = 0; i < meminfo.erasesize;
i += meminfo.writesize) {
printf("\r0x%08x: writing...", (unsigned)
(ofs + i + memregion.offset));
/* Write data to given offset */
pwrite(fd, data, meminfo.erasesize, ofs);
/* Write data to given offset */
pwrite(fd, data + i, meminfo.writesize, ofs + i);
printf("\r0x%08x: reading...", (unsigned)(ofs + memregion.offset));
printf("\r0x%08x: reading...", (unsigned)
(ofs + i + memregion.offset));
/* Read data from offset */
pread(fd, rbuf, meminfo.erasesize, ofs);
/* Read data from offset */
pread(fd, rbuf + i, meminfo.writesize, ofs + i);
ret = ioctl(fd, ECCGETSTATS, &newstats);
if (ret < 0) {
perror("ECCGETSTATS");
return ret;
}
if (newstats.corrected > oldstats.corrected) {
printf("\n %d bit(s) ECC corrected at 0x%08x\n",
newstats.corrected - oldstats.corrected,
(unsigned)(ofs + memregion.offset));
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]++;
ret = ioctl(fd, ECCGETSTATS, &newstats);
if (ret < 0) {
perror("ECCGETSTATS");
return ret;
}
/* Set oldstats to newstats */
oldstats.corrected = newstats.corrected;
}
if (newstats.failed > oldstats.failed) {
printf("\nECC failed at 0x%08x\n",
(unsigned)(ofs + memregion.offset));
oldstats.failed = newstats.failed;
ecc_failed_cnt++;
}
if (newstats.corrected > oldstats.corrected) {
printf("\n %d bit(s) ECC corrected at page 0x%08x\n",
newstats.corrected - oldstats.corrected,
(unsigned)(ofs + memregion.offset + 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%08x\n",
(unsigned)(ofs + memregion.offset + i));
oldstats.failed = newstats.failed;
ecc_failed_cnt++;
}
}
printf("\r0x%08x: checking...", (unsigned)(ofs + memregion.offset));
/* Compared written data with read data.