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authorAlexandros C. Couloumbis <alex@ozo.com>2010-11-24 14:10:01 +0000
committerAlexandros C. Couloumbis <alex@ozo.com>2010-11-24 14:10:01 +0000
commitf5a54d66019a7523a8cc5d19d912a34b6b8f6a2b (patch)
tree51778285b1b11e52aabbe7c08a17cbb741c68a86 /package/mtd
parent695a1268e18d882f5a0ea1003909f55aecc7080d (diff)
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package/mtd: (enhancement) add option to prevent erase when writing to flash. (closes #8308)
SVN-Revision: 24132
Diffstat (limited to 'package/mtd')
-rw-r--r--package/mtd/src/mtd.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index b2d760e84f..e4b6c79f02 100644
--- a/package/mtd/src/mtd.c
+++ b/package/mtd/src/mtd.c
@@ -74,6 +74,7 @@ static char *imagefile = NULL;
static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR;
static int buflen = 0;
int quiet;
+int no_erase;
int mtdsize = 0;
int erasesize = 0;
@@ -518,6 +519,8 @@ resume:
}
/* need to erase the next block before writing data to it */
+ if(no_erase)
+ {
while (w + buflen > e) {
if (!quiet)
fprintf(stderr, "\b\b\b[e]");
@@ -544,6 +547,7 @@ resume:
/* erase the chunk */
e += erasesize;
}
+ }
if (!quiet)
fprintf(stderr, "\b\b\b[w]");
@@ -595,6 +599,7 @@ static void usage(void)
"Following options are available:\n"
" -q quiet mode (once: no [w] on writing,\n"
" twice: no status messages)\n"
+ " -n write without first erasing the blocks\n"
" -r reboot after successful command\n"
" -f force write without trx checks\n"
" -e <device> erase <device> before executing the command\n"
@@ -646,12 +651,13 @@ int main (int argc, char **argv)
force = 0;
buflen = 0;
quiet = 0;
+ no_erase = 0;
while ((ch = getopt(argc, argv,
#ifdef FIS_SUPPORT
"F:"
#endif
- "frqe:d:j:o:")) != -1)
+ "frnqe:d:j:o:")) != -1)
switch (ch) {
case 'f':
force = 1;
@@ -659,6 +665,9 @@ int main (int argc, char **argv)
case 'r':
boot = 1;
break;
+ case 'n':
+ no_erase = 1;
+ break;
case 'j':
jffs2file = optarg;
break;