mtd: nand: split out ECC module

This way drivers could use ecc routines without depedency on whole nand

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

3 files changed, 16 insertions, 9 deletions

diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index dbee14d37224..e652080bce5d 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -307,8 +307,9 @@ config SSFDC
 
 config SM_FTL
         tristate "SmartMedia/xD new translation layer"
-        depends on EXPERIMENTAL && BLOCK && MTD_NAND
+        depends on EXPERIMENTAL && BLOCK
         select MTD_BLKDEVS
+        select MTD_NAND_ECC
         help
           This enables new and very EXPERMENTAL support for SmartMedia/xD
           FTL (Flash translation layer).
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 164bd56b9d1a..b712aedd89fb 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -2,11 +2,23 @@ menuconfig MTD_NAND
         tristate "NAND Device Support"
         depends on MTD
         select MTD_NAND_IDS
+        select MTD_NAND_ECC
         help
           This enables support for accessing all type of NAND flash
           devices. For further information see
           <http://www.linux-mtd.infradead.org/doc/nand.html>.
 
+config MTD_NAND_ECC
+        tristate
+
+config MTD_NAND_ECC_SMC
+        bool "NAND ECC Smart Media byte order"
+        depends on MTD_NAND_ECC
+        default n
+        help
+          Software ECC according to the Smart Media Specification.
+          The original Linux implementation had byte 0 and 1 swapped.
+
 if MTD_NAND
 
 config MTD_NAND_VERIFY_WRITE
@@ -18,13 +30,6 @@ config MTD_NAND_VERIFY_WRITE
           device thinks the write was successful, a bit could have been
           flipped accidentally due to device wear or something else.
 
-config MTD_NAND_ECC_SMC
-        bool "NAND ECC Smart Media byte order"
-        default n
-        help
-          Software ECC according to the Smart Media Specification.
-          The original Linux implementation had byte 0 and 1 swapped.
-
 config MTD_SM_COMMON
         tristate
         default n
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 5fbd1f83afb6..04bccf9d7b53 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -2,7 +2,8 @@
 # linux/drivers/nand/Makefile
 #
 
-obj-$(CONFIG_MTD_NAND)                  += nand.o nand_ecc.o
+obj-$(CONFIG_MTD_NAND)                  += nand.o
+obj-$(CONFIG_MTD_NAND_ECC)              += nand_ecc.o
 obj-$(CONFIG_MTD_NAND_IDS)              += nand_ids.o
 obj-$(CONFIG_MTD_SM_COMMON)             += sm_common.o