--- zzzz-none-000/linux-2.6.32.61/drivers/mtd/nand/nand_base.c	2013-06-10 09:43:48.000000000 +0000
+++ ar10-7272-687/linux-2.6.32.61/drivers/mtd/nand/nand_base.c	2013-10-17 11:57:07.000000000 +0000
@@ -360,7 +360,7 @@
 static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
 	struct nand_chip *chip = mtd->priv;
-	uint8_t buf[2] = { 0, 0 };
+	uint8_t buf[2] = { 2, 2 }; // hbl: 2 == user bad marked (kernel, urlader nimmt die 1)
 	int block, ret;
 
 	/* Get block number */
@@ -1787,11 +1787,11 @@
 	}
 
 #ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-	/* Send command to read back the data */
-	chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
+    /* Send command to read back the data */
+    chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
 
-	if (chip->verify_buf(mtd, buf, mtd->writesize))
-		return -EIO;
+    if (chip->verify_buf(mtd, buf, mtd->writesize))
+        return -EIO;
 #endif
 	return 0;
 }
@@ -2237,13 +2237,15 @@
 		/*
 		 * heck if we have a bad block, we do not erase bad blocks !
 		 */
-		if (nand_block_checkbad(mtd, ((loff_t) page) <<
-					chip->page_shift, 0, allowbbt)) {
-			printk(KERN_WARNING "%s: attempt to erase a bad block "
-					"at page 0x%08x\n", __func__, page);
-			instr->state = MTD_ERASE_FAILED;
-			goto erase_exit;
-		}
+        if (instr->priv != 1) {     /*--- 1 signals force to mtd->erase ---*/
+            if (nand_block_checkbad(mtd, ((loff_t) page) <<
+                        chip->page_shift, 0, allowbbt)) {
+                printk(KERN_WARNING "%s: attempt to erase a bad block "
+                        "at page 0x%08x\n", __func__, page);
+                instr->state = MTD_ERASE_FAILED;
+                goto erase_exit;
+            }
+        }
 
 		/*
 		 * Invalidate the page cache, if we erase the block which