X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/b73df9f67e312619830887740cc066b4555b63b3..9e9816322cf9331ed701a0d68a4f841bab106790:/package/mtd/src/mtd.c

diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index b2d760e84..835cbcf4c 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;
 
@@ -518,31 +519,34 @@ resume:
 		}
 
 		/* need to erase the next block before writing data to it */
-		while (w + buflen > e) {
-			if (!quiet)
-				fprintf(stderr, "\b\b\b[e]");
-
-
-			if (mtd_erase_block(fd, e) < 0) {
-				if (next) {
-					if (w < e) {
-						write(fd, buf + offset, e - w);
-						offset = e - w;
+		if(!no_erase)
+		{
+			while (w + buflen > e) {
+				if (!quiet)
+					fprintf(stderr, "\b\b\b[e]");
+
+
+				if (mtd_erase_block(fd, e) < 0) {
+					if (next) {
+						if (w < e) {
+							write(fd, buf + offset, e - w);
+							offset = e - w;
+						}
+						w = 0;
+						e = 0;
+						close(fd);
+						mtd = next;
+						fprintf(stderr, "\b\b\b   \n");
+						goto resume;
+					} else {
+						fprintf(stderr, "Failed to erase block\n");
+						exit(1);
 					}
-					w = 0;
-					e = 0;
-					close(fd);
-					mtd = next;
-					fprintf(stderr, "\b\b\b   \n");
-					goto resume;
-				} else {
-					fprintf(stderr, "Failed to erase block\n");
-					exit(1);
 				}
-			}
 
-			/* erase the chunk */
-			e += erasesize;
+				/* erase the chunk */
+				e += erasesize;
+			}
 		}
 
 		if (!quiet)
@@ -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;