mtd: nand: Add max_bb_per_die and blocks_per_die fields to nand_chip

The fields max_bb_per_die and blocks_per_die are useful determining the
number of bad blocks a MTD needs to allocate. How they are set will
depend on if the chip is ONFI, JEDEC or a full-id entry in the nand_ids
table.

Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electron.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c5f3a012ae62fec6766cf55a85c7f61ddecee3f7..4e1b441c3a7ef27585c06679daa20929f7b5432c 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -801,6 +801,9 @@ nand_get_sdr_timings(const struct nand_data_interface *conf)
  *                     supported, 0 otherwise.
  * @jedec_params:      [INTERN] holds the JEDEC parameter page when JEDEC is
  *                     supported, 0 otherwise.
+ * @max_bb_per_die:    [INTERN] the max number of bad blocks each die of a
+ *                     this nand device will encounter their life times.
+ * @blocks_per_die:    [INTERN] The number of PEBs in a die
  * @read_retries:      [INTERN] the number of read retry modes supported
  * @onfi_set_features: [REPLACEABLE] set the features for ONFI nand
  * @onfi_get_features: [REPLACEABLE] get the features for ONFI nand
@@ -883,6 +886,8 @@ struct nand_chip {
                struct nand_onfi_params onfi_params;
                struct nand_jedec_params jedec_params;
        };
+       u16 max_bb_per_die;
+       u32 blocks_per_die;
 
        struct nand_data_interface *data_interface;