packages/utils/mtd-utils/patches/100-mtd-debug-add-bad-block-counter.patch

--- a/mtd_debug.c
+++ b/mtd_debug.c
@@ -238,6 +238,7 @@ int showinfo (int fd)
 	int i,err,n;
 	struct mtd_info_user mtd;
 	static struct region_info_user region[1024];
+	int iNumOfBadBlocks = 0;
 
 	err = getmeminfo (fd,&mtd);
 	if (err < 0)
@@ -330,6 +331,11 @@ int showinfo (int fd)
 	printf ("\nmtd.oobsize = ");
 	printsize (mtd.oobsize);
 
+	printf ("\nmtd.badblockscount = ");
+	iNumOfBadBlocks = get_bb_number(fd, &mtd);
+	if (iNumOfBadBlocks > -1)
+		printf ("%d", iNumOfBadBlocks);
+
 	printf ("\n"
 			"regions = %d\n"
 			"\n",
@@ -349,6 +355,50 @@ int showinfo (int fd)
 	return (0);
 }
 
+int get_bb_number(int fd, struct mtd_info_user *meminfo)
+{
+	int isNAND = (meminfo->type == MTD_NANDFLASH);
+	int ibbCounter = 0;
+	/* Last 4 blocks of any MTD device are protected and
+	   MTD reports them as badblocks. */
+	int usablesize = meminfo->size - (4 * meminfo->erasesize);
+	erase_info_t erase;
+	erase.length = meminfo->erasesize;
+
+	for (erase.start = 0;
+	     erase.start < usablesize;
+	     erase.start += meminfo->erasesize)
+	{
+		loff_t offset = erase.start;
+		int ret = ioctl(fd, MEMGETBADBLOCK, &offset);
+
+		if (ret > 0)
+		{
+			ibbCounter++;
+			continue;
+		}
+		else if (ret < 0)
+		{
+			if (errno == EOPNOTSUPP)
+			{
+				if (isNAND)
+				{
+					printf("Bad block check not available");
+					return -1;
+				}
+			}
+			else
+			{
+				printf("MTD get bad block failed: %s",
+					strerror(errno));
+				return -1;
+			}
+		}
+	}
+
+	return ibbCounter;
+}
+
 void showusage(void)
 {
 	fprintf (stderr,