# linux/drivers/mtd/onenand/Kconfig
#
-menu "OneNAND Flash Device Drivers"
- depends on MTD != n
-
-config MTD_ONENAND
+menuconfig MTD_ONENAND
tristate "OneNAND Device Support"
depends on MTD
help
This enables support for accessing all type of OneNAND flash
devices. For further information see
- <http://www.samsung.com/Products/Semiconductor/Flash/OneNAND_TM/index.htm>.
+ <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm>
+
+if MTD_ONENAND
config MTD_ONENAND_VERIFY_WRITE
bool "Verify OneNAND page writes"
- depends on MTD_ONENAND
help
This adds an extra check when data is written to the flash. The
OneNAND flash device internally checks only bits transitioning
from 1 to 0. There is a rare possibility that even though the
device thinks the write was successful, a bit could have been
- flipped accidentaly due to device wear or something else.
+ flipped accidentally due to device wear or something else.
config MTD_ONENAND_GENERIC
tristate "OneNAND Flash device via platform device driver"
- depends on MTD_ONENAND && ARM
+ depends on ARM
help
Support for OneNAND flash via platform device driver.
config MTD_ONENAND_OTP
bool "OneNAND OTP Support"
- depends on MTD_ONENAND
help
One Block of the NAND Flash Array memory is reserved as
a One-Time Programmable Block memory area.
OTP block is fully-guaranteed to be a valid block.
-endmenu
+config MTD_ONENAND_2X_PROGRAM
+ bool "OneNAND 2X program support"
+ help
+ The 2X Program is an extension of Program Operation.
+ Since the device is equipped with two DataRAMs, and two-plane NAND
+ Flash memory array, these two component enables simultaneous program
+ of 4KiB. Plane1 has only even blocks such as block0, block2, block4
+ while Plane2 has only odd blocks such as block1, block3, block5.
+ So MTD regards it as 4KiB page size and 256KiB block size
+
+ Now the following chips support it. (KFXXX16Q2M)
+ Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,
+ Mux: KFM2G16Q2M, KFN4G16Q2M,
+
+ And more recent chips
+
+config MTD_ONENAND_SIM
+ tristate "OneNAND simulator support"
+ depends on MTD_PARTITIONS
+ help
+ The simulator may simulate various OneNAND flash chips for the
+ OneNAND MTD layer.
+
+endif # MTD_ONENAND