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package/mtd: (enhancement) add option to prevent erase when writing to flash. (closes #8308)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24132 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
acoul 2010-11-24 14:10:01 +00:00
parent f7ff90366d
commit 6a226cb195
1 changed files with 10 additions and 1 deletions
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11
package/mtd/src/mtd.c
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@ -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;