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Diffstat (limited to 'misc-utils/flash_erase.c')
-rw-r--r--misc-utils/flash_erase.c130
1 files changed, 95 insertions, 35 deletions
diff --git a/misc-utils/flash_erase.c b/misc-utils/flash_erase.c
index a7fc6a6..c6f6f66 100644
--- a/misc-utils/flash_erase.c
+++ b/misc-utils/flash_erase.c
@@ -2,6 +2,7 @@
Copyright (C) 2000 Arcom Control System Ltd
Copyright (C) 2010 Mike Frysinger <vapier@gentoo.org>
+ Copyright 2021 NXP
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
@@ -50,11 +51,10 @@ static int unlock; /* unlock sectors before erasing */
static struct jffs2_unknown_node cleanmarker;
int target_endian = __BYTE_ORDER;
-static void show_progress(struct mtd_dev_info *mtd, off_t start, int eb,
- int eb_start, int eb_cnt)
+static void show_progress(off_t start, int eb, int eb_start, int eb_cnt, int step)
{
bareverbose(!quiet, "\rErasing %d Kibyte @ %llx -- %2i %% complete ",
- mtd->eb_size / 1024, (unsigned long long)start, ((eb - eb_start) * 100) / eb_cnt);
+ step / 1024, (unsigned long long)start, ((eb - eb_start) * 100) / eb_cnt);
fflush(stdout);
}
@@ -64,13 +64,16 @@ static void display_help (void)
"Erase blocks of the specified MTD device.\n"
"Specify a count of 0 to erase to end of device.\n"
"\n"
- " -j, --jffs2 format the device for jffs2\n"
- " -N, --noskipbad don't skip bad blocks\n"
- " -u, --unlock unlock sectors before erasing\n"
- " -q, --quiet do not display progress messages\n"
- " --silent same as --quiet\n"
- " --help display this help and exit\n"
- " --version output version information and exit\n",
+ " -j, --jffs2 format the device for jffs2\n"
+ " -c, --cleanmarker=SIZE size of jffs2 cleanmarker (default 12)\n"
+ " -N, --noskipbad don't skip bad blocks\n"
+ " -u, --unlock unlock sectors before erasing\n"
+ " -q, --quiet do not display progress messages\n"
+ " --silent same as --quiet\n"
+ " --help display this help and exit\n"
+ " --version output version information and exit\n",
+ "\n"
+ " MTD_DEVICE MTD device node or 'mtd:<name>'\n"
PROGRAM_NAME);
}
@@ -88,14 +91,35 @@ static void display_version (void)
PROGRAM_NAME);
}
+static void clear_marker(libmtd_t mtd_desc, struct mtd_dev_info *mtd, int fd,
+ unsigned int eb, int cmlen, bool isNAND)
+{
+ off_t offset = (off_t)eb * mtd->eb_size;
+
+ /* write cleanmarker */
+ if (isNAND) {
+ if (mtd_write(mtd_desc, mtd, fd, eb, 0, NULL, 0, &cleanmarker, cmlen,
+ MTD_OPS_AUTO_OOB) != 0) {
+ sys_errmsg("%s: MTD writeoob failure", mtd_device);
+ return;
+ }
+ } else {
+ if (pwrite(fd, &cleanmarker, sizeof(cleanmarker), (loff_t)offset) != sizeof(cleanmarker)) {
+ sys_errmsg("%s: MTD write failure", mtd_device);
+ return;
+ }
+ }
+ verbose(!quiet, "%llx : Cleanmarker Updated.", (unsigned long long)offset);
+}
+
int main(int argc, char *argv[])
{
libmtd_t mtd_desc;
struct mtd_dev_info mtd;
- int fd, cmlen = 8;
+ int fd, cmlen = 8, cmsize = sizeof(cleanmarker);
unsigned long long start;
unsigned int eb, eb_start, eb_cnt;
- bool isNAND;
+ bool isNAND, erase_chip = false;
int error = 0;
off_t offset = 0;
@@ -104,11 +128,12 @@ int main(int argc, char *argv[])
*/
for (;;) {
int option_index = 0;
- static const char *short_options = "jNquVh";
+ static const char *short_options = "jc:NquVh";
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"jffs2", no_argument, 0, 'j'},
+ {"cleanmarker", required_argument, 0, 'c'},
{"noskipbad", no_argument, 0, 'N'},
{"quiet", no_argument, 0, 'q'},
{"silent", no_argument, 0, 'q'},
@@ -132,6 +157,9 @@ int main(int argc, char *argv[])
case 'j':
jffs2 = 1;
break;
+ case 'c':
+ cmsize = atoi(optarg);
+ break;
case 'N':
noskipbad = 1;
break;
@@ -148,7 +176,9 @@ int main(int argc, char *argv[])
}
switch (argc - optind) {
case 3:
- mtd_device = argv[optind];
+ mtd_device = mtd_find_dev_node(argv[optind]);
+ if (!mtd_device)
+ return errmsg("Can't find MTD device %s", argv[optind]);
start = simple_strtoull(argv[optind + 1], &error);
eb_cnt = simple_strtoul(argv[optind + 2], &error);
break;
@@ -182,6 +212,10 @@ int main(int argc, char *argv[])
if (jffs2 && mtd.type == MTD_MLCNANDFLASH)
return errmsg("JFFS2 cannot support MLC NAND.");
+ if (jffs2 && cmsize < sizeof(cleanmarker))
+ return errmsg("cleanmarker size must be >= 12");
+ if (jffs2 && cmsize >= mtd.eb_size)
+ return errmsg("cleanmarker size must be < eraseblock size");
eb_start = start / mtd.eb_size;
@@ -191,7 +225,7 @@ int main(int argc, char *argv[])
cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
if (!isNAND) {
- cleanmarker.totlen = cpu_to_je32(sizeof(cleanmarker));
+ cleanmarker.totlen = cpu_to_je32(cmsize);
} else {
cleanmarker.totlen = cpu_to_je32(8);
cmlen = min(mtd.oobavail, 8);
@@ -205,6 +239,47 @@ int main(int argc, char *argv[])
if (eb_cnt == 0)
eb_cnt = (mtd.size / mtd.eb_size) - eb_start;
+ if (eb_start == 0 && mtd.size == eb_cnt * mtd.eb_size)
+ erase_chip = true;
+
+ /* If MTD device may have bad eraseblocks,
+ * erase one by one each sector
+ */
+ if (noskipbad && mtd.bb_allowed)
+ erase_chip = false;
+
+ if (erase_chip) {
+ show_progress(0, eb_start, eb_start, eb_cnt, mtd.size);
+
+ if (unlock) {
+ if (mtd_unlock_multi(&mtd, fd, eb_start, eb_cnt) != 0) {
+ sys_errmsg("%s: MTD unlock entire chip failure." \
+ "Trying one by one each sector.",
+ mtd_device);
+ goto erase_each_sector;
+ }
+ }
+
+ if (mtd_erase_multi(mtd_desc, &mtd, fd, eb_start, eb_cnt) != 0) {
+ sys_errmsg("%s: MTD Erase entire chip failure" \
+ "Trying one by one each sector.",
+ mtd_device);
+ goto erase_each_sector;
+ }
+
+ show_progress(0, eb_start + eb_cnt, eb_start,
+ eb_cnt, mtd.size);
+
+ if (!jffs2)
+ goto out;
+
+ /* write cleanmarker */
+ for (eb = eb_start; eb < eb_start + eb_cnt; eb++)
+ clear_marker(mtd_desc, &mtd, fd, eb, cmlen, isNAND);
+ goto out;
+ }
+
+erase_each_sector:
for (eb = eb_start; eb < eb_start + eb_cnt; eb++) {
offset = (off_t)eb * mtd.eb_size;
@@ -223,7 +298,7 @@ int main(int argc, char *argv[])
}
}
- show_progress(&mtd, offset, eb, eb_start, eb_cnt);
+ show_progress(offset, eb, eb_start, eb_cnt, mtd.eb_size);
if (unlock) {
if (mtd_unlock(&mtd, fd, eb) != 0) {
@@ -237,26 +312,11 @@ int main(int argc, char *argv[])
continue;
}
- /* format for JFFS2 ? */
- if (!jffs2)
- continue;
-
- /* write cleanmarker */
- if (isNAND) {
- if (mtd_write(mtd_desc, &mtd, fd, eb, 0, NULL, 0, &cleanmarker, cmlen,
- MTD_OPS_AUTO_OOB) != 0) {
- sys_errmsg("%s: MTD writeoob failure", mtd_device);
- continue;
- }
- } else {
- if (pwrite(fd, &cleanmarker, sizeof(cleanmarker), (loff_t)offset) != sizeof(cleanmarker)) {
- sys_errmsg("%s: MTD write failure", mtd_device);
- continue;
- }
- }
- verbose(!quiet, " Cleanmarker Updated.");
+ if (jffs2)
+ clear_marker(mtd_desc, &mtd, fd, eb, cmlen, isNAND);
}
- show_progress(&mtd, offset, eb, eb_start, eb_cnt);
+ show_progress(offset, eb, eb_start, eb_cnt, mtd.eb_size);
+out:
bareverbose(!quiet, "\n");
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-29 18:34:47 +0000