1 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 63b5a8b6dfbd..1482340d3d9f 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -324,6 +324,7 @@ struct nand_hw_control {
  * @steps:      number of ECC steps per page
  * @size:       data bytes per ECC step
  * @bytes:      ECC bytes per step
+ * @strength:   max number of correctible bits per ECC step
  * @total:      total number of ECC bytes per page
  * @prepad:     padding information for syndrome based ECC generators
  * @postpad:    padding information for syndrome based ECC generators
@@ -351,6 +352,7 @@ struct nand_ecc_ctrl {
         int size;
         int bytes;
         int total;
+        int strength;
         int prepad;
         int postpad;
         struct nand_ecclayout   *layout;
@@ -448,8 +450,9 @@ struct nand_buffers {
  *                      will be copied to the appropriate nand_bbt_descr's.
  * @badblockpos:        [INTERN] position of the bad block marker in the oob
  *                      area.
- * @badblockbits:       [INTERN] number of bits to left-shift the bad block
- *                      number
+ * @badblockbits:       [INTERN] minimum number of set bits in a good block's
+ *                      bad block marker position; i.e., BBM == 11110111b is
+ *                      not bad when badblockbits == 7
  * @cellinfo:           [INTERN] MLC/multichip data from chip ident
  * @numchips:           [INTERN] number of physical chips
  * @chipsize:           [INTERN] the size of one chip for multichip arrays