75 lines
2.3 KiB
Plaintext
75 lines
2.3 KiB
Plaintext
#
|
|
# linux/drivers/mtd/onenand/Kconfig
|
|
#
|
|
|
|
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/OneNAND/index.htm>
|
|
|
|
if MTD_ONENAND
|
|
|
|
config MTD_ONENAND_VERIFY_WRITE
|
|
bool "Verify OneNAND page writes"
|
|
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 accidentally due to device wear or something else.
|
|
|
|
config MTD_ONENAND_GENERIC
|
|
tristate "OneNAND Flash device via platform device driver"
|
|
depends on ARM
|
|
help
|
|
Support for OneNAND flash via platform device driver.
|
|
|
|
config MTD_ONENAND_OMAP2
|
|
tristate "OneNAND on OMAP2/OMAP3 support"
|
|
depends on MTD_ONENAND && (ARCH_OMAP2 || ARCH_OMAP3)
|
|
help
|
|
Support for a OneNAND flash device connected to an OMAP2/OMAP3 CPU
|
|
via the GPMC memory controller.
|
|
|
|
config MTD_ONENAND_OTP
|
|
bool "OneNAND OTP Support"
|
|
select HAVE_MTD_OTP
|
|
help
|
|
One Block of the NAND Flash Array memory is reserved as
|
|
a One-Time Programmable Block memory area.
|
|
Also, 1st Block of NAND Flash Array can be used as OTP.
|
|
|
|
The OTP block can be read, programmed and locked using the same
|
|
operations as any other NAND Flash Array memory block.
|
|
OTP block cannot be erased.
|
|
|
|
OTP block is fully-guaranteed to be a valid block.
|
|
|
|
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
|