[PATCH] OneNAND: Simple Bad Block handling support

Based on NAND memory bad block table code

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index c557caa24a6c..89aaffbc9576 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -14,6 +14,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/mtd/onenand_regs.h>
+#include <linux/mtd/bbm.h>
 
 #define MAX_BUFFERRAM           2
 
@@ -67,10 +68,14 @@ struct onenand_bufferram {
  * @param wait          [REPLACEABLE] hardware specific function for wait on ready
  * @param read_bufferram        [REPLACEABLE] hardware specific function for BufferRAM Area
  * @param write_bufferram       [REPLACEABLE] hardware specific function for BufferRAM Area
+ * @param read_word     [REPLACEABLE] hardware specific function for read register of OneNAND
+ * @param write_word    [REPLACEABLE] hardware specific function for write register of OneNAND
+ * @param scan_bbt      [REPLACEALBE] hardware specific function for scaning Bad block Table
  * @param chip_lock     [INTERN] spinlock used to protect access to this structure and the chip
  * @param wq            [INTERN] wait queue to sleep on if a OneNAND operation is in progress
  * @param state         [INTERN] the current state of the OneNAND device
  * @param autooob       [REPLACEABLE] the default (auto)placement scheme
+ * @param bbm           [REPLACEABLE] pointer to Bad Block Management 
  * @param priv          [OPTIONAL] pointer to private chip date
  */
 struct onenand_chip {
@@ -96,6 +101,8 @@ struct onenand_chip {
         unsigned short (*read_word)(void __iomem *addr);
         void (*write_word)(unsigned short value, void __iomem *addr);
         void (*mmcontrol)(struct mtd_info *mtd, int sync_read);
+        int (*block_markbad)(struct mtd_info *mtd, loff_t ofs);
+        int (*scan_bbt)(struct mtd_info *mtd);
 
         spinlock_t              chip_lock;
         wait_queue_head_t       wq;
@@ -103,6 +110,8 @@ struct onenand_chip {
 
         struct nand_oobinfo     *autooob;
 
+        void                    *bbm;
+
         void                    *priv;
 };