[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / mtd / nand / Kconfig

# drivers/mtd/nand/Kconfig

menuconfig MTD_NAND
	tristate "NAND Device Support"
	depends on MTD
	select MTD_NAND_IDS
	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>.

if MTD_NAND

config MTD_NAND_VERIFY_WRITE
	bool "Verify NAND page writes"
	help
	  This adds an extra check when data is written to the flash. The
	  NAND 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_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_NAND_MUSEUM_IDS
	bool "Enable chip ids for obsolete ancient NAND devices"
	depends on MTD_NAND
	default n
	help
	  Enable this option only when your board has first generation
	  NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
	  of these chips were reused by later, larger chips.

config MTD_NAND_AUTCPU12
	tristate "SmartMediaCard on autronix autcpu12 board"
	depends on ARCH_AUTCPU12
	help
	  This enables the driver for the autronix autcpu12 board to
	  access the SmartMediaCard.

config MTD_NAND_EDB7312
	tristate "Support for Cirrus Logic EBD7312 evaluation board"
	depends on ARCH_EDB7312
	help
	  This enables the driver for the Cirrus Logic EBD7312 evaluation
	  board to access the onboard NAND Flash.

config MTD_NAND_H1900
	tristate "iPAQ H1900 flash"
	depends on ARCH_PXA && MTD_PARTITIONS
	help
	  This enables the driver for the iPAQ h1900 flash.

config MTD_NAND_GPIO
	tristate "GPIO NAND Flash driver"
	depends on GENERIC_GPIO
	help
	  This enables a GPIO based NAND flash driver.

config MTD_NAND_SPIA
	tristate "NAND Flash device on SPIA board"
	depends on ARCH_P720T
	help
	  If you had to ask, you don't have one. Say 'N'.

config MTD_NAND_AMS_DELTA
	tristate "NAND Flash device on Amstrad E3"
	depends on MACH_AMS_DELTA
	help
	  Support for NAND flash on Amstrad E3 (Delta).

config MTD_NAND_TS7250
	tristate "NAND Flash device on TS-7250 board"
	depends on MACH_TS72XX
	help
	  Support for NAND flash on Technologic Systems TS-7250 platform.

config MTD_NAND_IDS
	tristate

config MTD_NAND_AU1550
	tristate "Au1550/1200 NAND support"
	depends on SOC_AU1200 || SOC_AU1550
	help
	  This enables the driver for the NAND flash controller on the
	  AMD/Alchemy 1550 SOC.

config MTD_NAND_BF5XX
	tristate "Blackfin on-chip NAND Flash Controller driver"
	depends on (BF54x || BF52x) && MTD_NAND
	help
	  This enables the Blackfin on-chip NAND flash controller

	  No board specific support is done by this driver, each board
	  must advertise a platform_device for the driver to attach.

	  This driver can also be built as a module. If so, the module
	  will be called bf5xx-nand.

config MTD_NAND_BF5XX_HWECC
	bool "BF5XX NAND Hardware ECC"
	default y
	depends on MTD_NAND_BF5XX
	help
	  Enable the use of the BF5XX's internal ECC generator when
	  using NAND.

config MTD_NAND_BF5XX_BOOTROM_ECC
	bool "Use Blackfin BootROM ECC Layout"
	default n
	depends on MTD_NAND_BF5XX_HWECC
	help
	  If you wish to modify NAND pages and allow the Blackfin on-chip
	  BootROM to boot from them, say Y here.  This is only necessary
	  if you are booting U-Boot out of NAND and you wish to update
	  U-Boot from Linux' userspace.  Otherwise, you should say N here.

	  If unsure, say N.

config MTD_NAND_RTC_FROM4
	tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
	depends on SH_SOLUTION_ENGINE
	select REED_SOLOMON
	select REED_SOLOMON_DEC8
	select BITREVERSE
	help
	  This enables the driver for the Renesas Technology AG-AND
	  flash interface board (FROM_BOARD4)

config MTD_NAND_PPCHAMELEONEVB
	tristate "NAND Flash device on PPChameleonEVB board"
	depends on PPCHAMELEONEVB && BROKEN
	help
	  This enables the NAND flash driver on the PPChameleon EVB Board.

config MTD_NAND_S3C2410
	tristate "NAND Flash support for S3C2410/S3C2440 SoC"
	depends on ARCH_S3C2410
	help
	  This enables the NAND flash controller on the S3C2410 and S3C2440
	  SoCs

	  No board specific support is done by this driver, each board
	  must advertise a platform_device for the driver to attach.

config MTD_NAND_S3C2410_DEBUG
	bool "S3C2410 NAND driver debug"
	depends on MTD_NAND_S3C2410
	help
	  Enable debugging of the S3C2410 NAND driver

config MTD_NAND_S3C2410_HWECC
	bool "S3C2410 NAND Hardware ECC"
	depends on MTD_NAND_S3C2410
	help
	  Enable the use of the S3C2410's internal ECC generator when
	  using NAND. Early versions of the chip have had problems with
	  incorrect ECC generation, and if using these, the default of
	  software ECC is preferable.

config MTD_NAND_S3C2410_CLKSTOP
	bool "S3C2410 NAND IDLE clock stop"
	depends on MTD_NAND_S3C2410
	default n
	help
	  Stop the clock to the NAND controller when there is no chip
	  selected to save power. This will mean there is a small delay
	  when the is NAND chip selected or released, but will save
	  approximately 5mA of power when there is nothing happening.

config MTD_NAND_DISKONCHIP
	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select REED_SOLOMON
	select REED_SOLOMON_DEC16
	help
	  This is a reimplementation of M-Systems DiskOnChip 2000,
	  Millennium and Millennium Plus as a standard NAND device driver,
	  as opposed to the earlier self-contained MTD device drivers.
	  This should enable, among other things, proper JFFS2 operation on
	  these devices.

config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
        bool "Advanced detection options for DiskOnChip"
        depends on MTD_NAND_DISKONCHIP
        help
          This option allows you to specify nonstandard address at which to
          probe for a DiskOnChip, or to change the detection options.  You
          are unlikely to need any of this unless you are using LinuxBIOS.
          Say 'N'.

config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
        hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
        depends on MTD_NAND_DISKONCHIP
        default "0"
        ---help---
        By default, the probe for DiskOnChip devices will look for a
        DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
        This option allows you to specify a single address at which to probe
        for the device, which is useful if you have other devices in that
        range which get upset when they are probed.

        (Note that on PowerPC, the normal probe will only check at
        0xE4000000.)

        Normally, you should leave this set to zero, to allow the probe at
        the normal addresses.

config MTD_NAND_DISKONCHIP_PROBE_HIGH
        bool "Probe high addresses"
        depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
        help
          By default, the probe for DiskOnChip devices will look for a
          DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
          This option changes to make it probe between 0xFFFC8000 and
          0xFFFEE000.  Unless you are using LinuxBIOS, this is unlikely to be
          useful to you.  Say 'N'.

config MTD_NAND_DISKONCHIP_BBTWRITE
	bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
	depends on MTD_NAND_DISKONCHIP
	help
	  On DiskOnChip devices shipped with the INFTL filesystem (Millennium
	  and 2000 TSOP/Alon), Linux reserves some space at the end of the
	  device for the Bad Block Table (BBT).  If you have existing INFTL
	  data on your device (created by non-Linux tools such as M-Systems'
	  DOS drivers), your data might overlap the area Linux wants to use for
	  the BBT.  If this is a concern for you, leave this option disabled and
	  Linux will not write BBT data into this area.
	  The downside of leaving this option disabled is that if bad blocks
	  are detected by Linux, they will not be recorded in the BBT, which
	  could cause future problems.
	  Once you enable this option, new filesystems (INFTL or others, created
	  in Linux or other operating systems) will not use the reserved area.
	  The only reason not to enable this option is to prevent damage to
	  preexisting filesystems.
	  Even if you leave this disabled, you can enable BBT writes at module
	  load time (assuming you build diskonchip as a module) with the module
	  parameter "inftl_bbt_write=1".

config MTD_NAND_SHARPSL
	tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
	depends on ARCH_PXA

config MTD_NAND_BASLER_EXCITE
	tristate  "Support for NAND Flash on Basler eXcite"
	depends on BASLER_EXCITE
	help
          This enables the driver for the NAND flash device found on the
          Basler eXcite Smart Camera. If built as a module, the driver
          will be named "excite_nandflash.ko".

config MTD_NAND_CAFE
	tristate "NAND support for OLPC CAFÉ chip"
	depends on PCI
	select REED_SOLOMON
	select REED_SOLOMON_DEC16
	help
	  Use NAND flash attached to the CAFÉ chip designed for the OLPC
	  laptop.

config MTD_NAND_CS553X
	tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
	depends on X86_32 && (X86_PC || X86_GENERICARCH)
	help
	  The CS553x companion chips for the AMD Geode processor
	  include NAND flash controllers with built-in hardware ECC
	  capabilities; enabling this option will allow you to use
	  these. The driver will check the MSRs to verify that the
	  controller is enabled for NAND, and currently requires that
	  the controller be in MMIO mode.

	  If you say "m", the module will be called "cs553x_nand.ko".

config MTD_NAND_ATMEL
	tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
	depends on ARCH_AT91 || AVR32
	help
	  Enables support for NAND Flash / Smart Media Card interface
	  on Atmel AT91 and AVR32 processors.
choice
	prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
	depends on MTD_NAND_ATMEL

config MTD_NAND_ATMEL_ECC_HW
	bool "Hardware ECC"
	depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
	help
	  Use hardware ECC instead of software ECC when the chip
	  supports it.

	  The hardware ECC controller is capable of single bit error
	  correction and 2-bit random detection per page.

	  NB : hardware and software ECC schemes are incompatible.
	  If you switch from one to another, you'll have to erase your
	  mtd partition.

	  If unsure, say Y

config MTD_NAND_ATMEL_ECC_SOFT
	bool "Software ECC"
	help
	  Use software ECC.

	  NB : hardware and software ECC schemes are incompatible.
	  If you switch from one to another, you'll have to erase your
	  mtd partition.

config MTD_NAND_ATMEL_ECC_NONE
	bool "No ECC (testing only, DANGEROUS)"
	depends on DEBUG_KERNEL
	help
	  No ECC will be used.
	  It's not a good idea and it should be reserved for testing
	  purpose only.

	  If unsure, say N

	  endchoice

endchoice

config MTD_NAND_PXA3xx
	bool "Support for NAND flash devices on PXA3xx"
	depends on MTD_NAND && PXA3xx
	help
	  This enables the driver for the NAND flash device found on
	  PXA3xx processors

config MTD_NAND_PXA3xx_BUILTIN
	bool "Use builtin definitions for some NAND chips (deprecated)"
	depends on MTD_NAND_PXA3xx
	help
	  This enables builtin definitions for some NAND chips. This
	  is deprecated in favor of platform specific data.

config MTD_NAND_CM_X270
	tristate "Support for NAND Flash on CM-X270 modules"
	depends on MTD_NAND && MACH_ARMCORE

config MTD_NAND_PASEMI
	tristate "NAND support for PA Semi PWRficient"
	depends on MTD_NAND && PPC_PASEMI
	help
	  Enables support for NAND Flash interface on PA Semi PWRficient
	  based boards

config MTD_NAND_TMIO
	tristate "NAND Flash device on Toshiba Mobile IO Controller"
	depends on MTD_NAND && MFD_TMIO
	help
	  Support for NAND flash connected to a Toshiba Mobile IO
	  Controller in some PDAs, including the Sharp SL6000x.

config MTD_NAND_NANDSIM
	tristate "Support for NAND Flash Simulator"
	depends on MTD_PARTITIONS
	help
	  The simulator may simulate various NAND flash chips for the
	  MTD nand layer.

config MTD_NAND_PLATFORM
	tristate "Support for generic platform NAND driver"
	depends on MTD_NAND
	help
	  This implements a generic NAND driver for on-SOC platform
	  devices. You will need to provide platform-specific functions
	  via platform_data.

config MTD_ALAUDA
	tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
	depends on MTD_NAND && USB
	help
	  These two (and possibly other) Alauda-based cardreaders for
	  SmartMedia and xD allow raw flash access.

config MTD_NAND_ORION
	tristate "NAND Flash support for Marvell Orion SoC"
	depends on PLAT_ORION && MTD_NAND
	help
	  This enables the NAND flash controller on Orion machines.

	  No board specific support is done by this driver, each board
	  must advertise a platform_device for the driver to attach.

config MTD_NAND_FSL_ELBC
	tristate "NAND support for Freescale eLBC controllers"
	depends on MTD_NAND && PPC_OF
	help
	  Various Freescale chips, including the 8313, include a NAND Flash
	  Controller Module with built-in hardware ECC capabilities.
	  Enabling this option will enable you to use this to control
	  external NAND devices.

config MTD_NAND_FSL_UPM
	tristate "Support for NAND on Freescale UPM"
	depends on MTD_NAND && (PPC_83xx || PPC_85xx)
	select FSL_LBC
	help
	  Enables support for NAND Flash chips wired onto Freescale PowerPC
	  processor localbus with User-Programmable Machine support.

config MTD_NAND_MXC
	tristate "MXC NAND support"
	depends on ARCH_MX2
	help
	  This enables the driver for the NAND flash controller on the
	  MXC processors.

config MTD_NAND_SH_FLCTL
	tristate "Support for NAND on Renesas SuperH FLCTL"
	depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
	help
	  Several Renesas SuperH CPU has FLCTL. This option enables support
	  for NAND Flash using FLCTL. This driver support SH7723.

endif # MTD_NAND
Commit	Line	Data
1da177e4	1	# drivers/mtd/nand/Kconfig
1da177e4	2
ec98c681	3	menuconfig MTD_NAND
1da177e4 LT	4	tristate "NAND Device Support"
	5	depends on MTD
	6	select MTD_NAND_IDS
	7	help
	8	This enables support for accessing all type of NAND flash
	9	devices. For further information see
220b0f57	10	<http://www.linux-mtd.infradead.org/doc/nand.html>.
1da177e4	11
ec98c681 JE	12	if MTD_NAND
ec98c681 JE	13
1da177e4 LT	14	config MTD_NAND_VERIFY_WRITE
1da177e4 LT	15	bool "Verify NAND page writes"
1da177e4 LT	16	help
	17	This adds an extra check when data is written to the flash. The
	18	NAND flash device internally checks only bits transitioning
	19	from 1 to 0. There is a rare possibility that even though the
	20	device thinks the write was successful, a bit could have been
09509603	21	flipped accidentally due to device wear or something else.
1da177e4	22
819d6a32 TG	23	config MTD_NAND_ECC_SMC
819d6a32 TG	24	bool "NAND ECC Smart Media byte order"
819d6a32 TG	25	default n
	26	help
	27	Software ECC according to the Smart Media Specification.
	28	The original Linux implementation had byte 0 and 1 swapped.
	29
1cf9827b TG	30	config MTD_NAND_MUSEUM_IDS
	31	bool "Enable chip ids for obsolete ancient NAND devices"
	32	depends on MTD_NAND
	33	default n
	34	help
	35	Enable this option only when your board has first generation
	36	NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
	37	of these chips were reused by later, larger chips.
	38
1da177e4 LT	39	config MTD_NAND_AUTCPU12
1da177e4 LT	40	tristate "SmartMediaCard on autronix autcpu12 board"
ec98c681	41	depends on ARCH_AUTCPU12
1da177e4	42	help
61b03bd7	43	This enables the driver for the autronix autcpu12 board to
1da177e4 LT	44	access the SmartMediaCard.
	45
	46	config MTD_NAND_EDB7312
	47	tristate "Support for Cirrus Logic EBD7312 evaluation board"
ec98c681	48	depends on ARCH_EDB7312
1da177e4	49	help
61b03bd7	50	This enables the driver for the Cirrus Logic EBD7312 evaluation
1da177e4 LT	51	board to access the onboard NAND Flash.
	52
	53	config MTD_NAND_H1900
	54	tristate "iPAQ H1900 flash"
ec98c681	55	depends on ARCH_PXA && MTD_PARTITIONS
1da177e4 LT	56	help
	57	This enables the driver for the iPAQ h1900 flash.
	58
aaf7ea20 MR	59	config MTD_NAND_GPIO
	60	tristate "GPIO NAND Flash driver"
	61	depends on GENERIC_GPIO
	62	help
	63	This enables a GPIO based NAND flash driver.
	64
1da177e4 LT	65	config MTD_NAND_SPIA
1da177e4 LT	66	tristate "NAND Flash device on SPIA board"
ec98c681	67	depends on ARCH_P720T
1da177e4 LT	68	help
	69	If you had to ask, you don't have one. Say 'N'.
	70
3d12c0c7 JM	71	config MTD_NAND_AMS_DELTA
3d12c0c7 JM	72	tristate "NAND Flash device on Amstrad E3"
ec98c681	73	depends on MACH_AMS_DELTA
3d12c0c7 JM	74	help
	75	Support for NAND flash on Amstrad E3 (Delta).
	76
7d532dd5 LB	77	config MTD_NAND_TS7250
7d532dd5 LB	78	tristate "NAND Flash device on TS-7250 board"
ec98c681	79	depends on MACH_TS72XX
7d532dd5 LB	80	help
	81	Support for NAND flash on Technologic Systems TS-7250 platform.
	82
1da177e4 LT	83	config MTD_NAND_IDS
	84	tristate
	85
1da177e4	86	config MTD_NAND_AU1550
ef6f0d1f	87	tristate "Au1550/1200 NAND support"
ec98c681	88	depends on SOC_AU1200 \|\| SOC_AU1550
1da177e4 LT	89	help
	90	This enables the driver for the NAND flash controller on the
	91	AMD/Alchemy 1550 SOC.
	92
b37bde14 BW	93	config MTD_NAND_BF5XX
b37bde14 BW	94	tristate "Blackfin on-chip NAND Flash Controller driver"
a25b7fee	95	depends on (BF54x \|\| BF52x) && MTD_NAND
b37bde14 BW	96	help
	97	This enables the Blackfin on-chip NAND flash controller
	98
	99	No board specific support is done by this driver, each board
	100	must advertise a platform_device for the driver to attach.
	101
	102	This driver can also be built as a module. If so, the module
	103	will be called bf5xx-nand.
	104
	105	config MTD_NAND_BF5XX_HWECC
	106	bool "BF5XX NAND Hardware ECC"
a0dd2018	107	default y
b37bde14 BW	108	depends on MTD_NAND_BF5XX
	109	help
	110	Enable the use of the BF5XX's internal ECC generator when
	111	using NAND.
	112
fcb90ba7 MF	113	config MTD_NAND_BF5XX_BOOTROM_ECC
	114	bool "Use Blackfin BootROM ECC Layout"
	115	default n
	116	depends on MTD_NAND_BF5XX_HWECC
	117	help
	118	If you wish to modify NAND pages and allow the Blackfin on-chip
	119	BootROM to boot from them, say Y here. This is only necessary
	120	if you are booting U-Boot out of NAND and you wish to update
	121	U-Boot from Linux' userspace. Otherwise, you should say N here.
	122
	123	If unsure, say N.
	124
1da177e4 LT	125	config MTD_NAND_RTC_FROM4
1da177e4 LT	126	tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
ec98c681	127	depends on SH_SOLUTION_ENGINE
1da177e4 LT	128	select REED_SOLOMON
1da177e4 LT	129	select REED_SOLOMON_DEC8
1605cd3d	130	select BITREVERSE
1da177e4	131	help
61b03bd7	132	This enables the driver for the Renesas Technology AG-AND
1da177e4 LT	133	flash interface board (FROM_BOARD4)
	134
	135	config MTD_NAND_PPCHAMELEONEVB
	136	tristate "NAND Flash device on PPChameleonEVB board"
ec98c681	137	depends on PPCHAMELEONEVB && BROKEN
1da177e4 LT	138	help
	139	This enables the NAND flash driver on the PPChameleon EVB Board.
	140
	141	config MTD_NAND_S3C2410
a4f957f1	142	tristate "NAND Flash support for S3C2410/S3C2440 SoC"
ec98c681	143	depends on ARCH_S3C2410
1da177e4	144	help
a4f957f1 BD	145	This enables the NAND flash controller on the S3C2410 and S3C2440
a4f957f1 BD	146	SoCs
1da177e4	147
4992a9e8	148	No board specific support is done by this driver, each board
61b03bd7	149	must advertise a platform_device for the driver to attach.
1da177e4 LT	150
	151	config MTD_NAND_S3C2410_DEBUG
	152	bool "S3C2410 NAND driver debug"
	153	depends on MTD_NAND_S3C2410
	154	help
	155	Enable debugging of the S3C2410 NAND driver
	156
	157	config MTD_NAND_S3C2410_HWECC
	158	bool "S3C2410 NAND Hardware ECC"
	159	depends on MTD_NAND_S3C2410
	160	help
	161	Enable the use of the S3C2410's internal ECC generator when
	162	using NAND. Early versions of the chip have had problems with
	163	incorrect ECC generation, and if using these, the default of
	164	software ECC is preferable.
	165
d1fef3c5 BD	166	config MTD_NAND_S3C2410_CLKSTOP
	167	bool "S3C2410 NAND IDLE clock stop"
	168	depends on MTD_NAND_S3C2410
	169	default n
	170	help
	171	Stop the clock to the NAND controller when there is no chip
	172	selected to save power. This will mean there is a small delay
	173	when the is NAND chip selected or released, but will save
	174	approximately 5mA of power when there is nothing happening.
	175
1da177e4 LT	176	config MTD_NAND_DISKONCHIP
1da177e4 LT	177	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
ec98c681	178	depends on EXPERIMENTAL
1da177e4 LT	179	select REED_SOLOMON
	180	select REED_SOLOMON_DEC16
	181	help
	182	This is a reimplementation of M-Systems DiskOnChip 2000,
	183	Millennium and Millennium Plus as a standard NAND device driver,
	184	as opposed to the earlier self-contained MTD device drivers.
	185	This should enable, among other things, proper JFFS2 operation on
	186	these devices.
	187
	188	config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	189	bool "Advanced detection options for DiskOnChip"
	190	depends on MTD_NAND_DISKONCHIP
	191	help
	192	This option allows you to specify nonstandard address at which to
	193	probe for a DiskOnChip, or to change the detection options. You
	194	are unlikely to need any of this unless you are using LinuxBIOS.
	195	Say 'N'.
	196
	197	config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
	198	hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	199	depends on MTD_NAND_DISKONCHIP
	200	default "0"
	201	---help---
	202	By default, the probe for DiskOnChip devices will look for a
	203	DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
	204	This option allows you to specify a single address at which to probe
	205	for the device, which is useful if you have other devices in that
	206	range which get upset when they are probed.
	207
	208	(Note that on PowerPC, the normal probe will only check at
	209	0xE4000000.)
	210
	211	Normally, you should leave this set to zero, to allow the probe at
	212	the normal addresses.
	213
	214	config MTD_NAND_DISKONCHIP_PROBE_HIGH
	215	bool "Probe high addresses"
	216	depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	217	help
	218	By default, the probe for DiskOnChip devices will look for a
	219	DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
	220	This option changes to make it probe between 0xFFFC8000 and
	221	0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
	222	useful to you. Say 'N'.
	223
	224	config MTD_NAND_DISKONCHIP_BBTWRITE
	225	bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
	226	depends on MTD_NAND_DISKONCHIP
	227	help
	228	On DiskOnChip devices shipped with the INFTL filesystem (Millennium
	229	and 2000 TSOP/Alon), Linux reserves some space at the end of the
	230	device for the Bad Block Table (BBT). If you have existing INFTL
	231	data on your device (created by non-Linux tools such as M-Systems'
	232	DOS drivers), your data might overlap the area Linux wants to use for
	233	the BBT. If this is a concern for you, leave this option disabled and
	234	Linux will not write BBT data into this area.
	235	The downside of leaving this option disabled is that if bad blocks
	236	are detected by Linux, they will not be recorded in the BBT, which
	237	could cause future problems.
	238	Once you enable this option, new filesystems (INFTL or others, created
	239	in Linux or other operating systems) will not use the reserved area.
	240	The only reason not to enable this option is to prevent damage to
	241	preexisting filesystems.
	242	Even if you leave this disabled, you can enable BBT writes at module
243	load time (assuming you build diskonchip as a module) with the module
244	parameter "inftl_bbt_write=1".
1da177e4	245
54af6b46 AB	246	config MTD_NAND_SHARPSL
54af6b46 AB	247	tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
ec98c681	248	depends on ARCH_PXA
54af6b46	249
67a9c7af TK	250	config MTD_NAND_BASLER_EXCITE
67a9c7af TK	251	tristate "Support for NAND Flash on Basler eXcite"
ec98c681	252	depends on BASLER_EXCITE
67a9c7af TK	253	help
	254	This enables the driver for the NAND flash device found on the
	255	Basler eXcite Smart Camera. If built as a module, the driver
	256	will be named "excite_nandflash.ko".
	257
c45aa055	258	config MTD_NAND_CAFE
8c61b7a7 SB	259	tristate "NAND support for OLPC CAFÉ chip"
	260	depends on PCI
	261	select REED_SOLOMON
	262	select REED_SOLOMON_DEC16
	263	help
8f46c527	264	Use NAND flash attached to the CAFÉ chip designed for the OLPC
8c61b7a7	265	laptop.
c45aa055	266
179fdc3f DW	267	config MTD_NAND_CS553X
179fdc3f DW	268	tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
ec98c681	269	depends on X86_32 && (X86_PC \|\| X86_GENERICARCH)
f41a5f80 DW	270	help
	271	The CS553x companion chips for the AMD Geode processor
	272	include NAND flash controllers with built-in hardware ECC
	273	capabilities; enabling this option will allow you to use
	274	these. The driver will check the MSRs to verify that the
	275	controller is enabled for NAND, and currently requires that
	276	the controller be in MMIO mode.
	277
	278	If you say "m", the module will be called "cs553x_nand.ko".
	279
d4f4c0aa	280	config MTD_NAND_ATMEL
bd5a4382	281	tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
984290de	282	depends on ARCH_AT91 \|\| AVR32
42cb1403 AV	283	help
42cb1403 AV	284	Enables support for NAND Flash / Smart Media Card interface
984290de	285	on Atmel AT91 and AVR32 processors.
77f5492c	286	choice
984290de	287	prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
d4f4c0aa	288	depends on MTD_NAND_ATMEL
77f5492c	289
d4f4c0aa	290	config MTD_NAND_ATMEL_ECC_HW
77f5492c	291	bool "Hardware ECC"
984290de	292	depends on ARCH_AT91SAM9263 \|\| ARCH_AT91SAM9260 \|\| AVR32
77f5492c	293	help
d4f4c0aa HS	294	Use hardware ECC instead of software ECC when the chip
	295	supports it.
	296
77f5492c RG	297	The hardware ECC controller is capable of single bit error
	298	correction and 2-bit random detection per page.
	299
	300	NB : hardware and software ECC schemes are incompatible.
	301	If you switch from one to another, you'll have to erase your
	302	mtd partition.
	303
	304	If unsure, say Y
	305
d4f4c0aa	306	config MTD_NAND_ATMEL_ECC_SOFT
77f5492c RG	307	bool "Software ECC"
77f5492c RG	308	help
d4f4c0aa	309	Use software ECC.
77f5492c RG	310
	311	NB : hardware and software ECC schemes are incompatible.
	312	If you switch from one to another, you'll have to erase your
	313	mtd partition.
	314
d4f4c0aa	315	config MTD_NAND_ATMEL_ECC_NONE
77f5492c RG	316	bool "No ECC (testing only, DANGEROUS)"
	317	depends on DEBUG_KERNEL
	318	help
	319	No ECC will be used.
	320	It's not a good idea and it should be reserved for testing
	321	purpose only.
	322
	323	If unsure, say N
	324
	325	endchoice
	326
	327	endchoice
42cb1403	328
fe69af00	329	config MTD_NAND_PXA3xx
	330	bool "Support for NAND flash devices on PXA3xx"
	331	depends on MTD_NAND && PXA3xx
	332	help
	333	This enables the driver for the NAND flash device found on
	334	PXA3xx processors
	335
80ebf20f ES	336	config MTD_NAND_PXA3xx_BUILTIN
	337	bool "Use builtin definitions for some NAND chips (deprecated)"
	338	depends on MTD_NAND_PXA3xx
	339	help
	340	This enables builtin definitions for some NAND chips. This
	341	is deprecated in favor of platform specific data.
	342
54d33c4c MR	343	config MTD_NAND_CM_X270
	344	tristate "Support for NAND Flash on CM-X270 modules"
	345	depends on MTD_NAND && MACH_ARMCORE
	346
846fc31d EM	347	config MTD_NAND_PASEMI
	348	tristate "NAND support for PA Semi PWRficient"
	349	depends on MTD_NAND && PPC_PASEMI
	350	help
	351	Enables support for NAND Flash interface on PA Semi PWRficient
	352	based boards
54d33c4c	353
ec43b816 IM	354	config MTD_NAND_TMIO
ec43b816 IM	355	tristate "NAND Flash device on Toshiba Mobile IO Controller"
1c2c30ac	356	depends on MTD_NAND && MFD_TMIO
ec43b816 IM	357	help
	358	Support for NAND flash connected to a Toshiba Mobile IO
	359	Controller in some PDAs, including the Sharp SL6000x.
	360
54af6b46 AB	361	config MTD_NAND_NANDSIM
54af6b46 AB	362	tristate "Support for NAND Flash Simulator"
ec98c681	363	depends on MTD_PARTITIONS
1da177e4	364	help
f41a5f80	365	The simulator may simulate various NAND flash chips for the
1da177e4	366	MTD nand layer.
54af6b46	367
711fdf62 VW	368	config MTD_NAND_PLATFORM
	369	tristate "Support for generic platform NAND driver"
	370	depends on MTD_NAND
	371	help
	372	This implements a generic NAND driver for on-SOC platform
	373	devices. You will need to provide platform-specific functions
	374	via platform_data.
	375
e208520e	376	config MTD_ALAUDA
42265940	377	tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
e208520e JE	378	depends on MTD_NAND && USB
	379	help
	380	These two (and possibly other) Alauda-based cardreaders for
	381	SmartMedia and xD allow raw flash access.
711fdf62	382
2a1dba29 TP	383	config MTD_NAND_ORION
2a1dba29 TP	384	tristate "NAND Flash support for Marvell Orion SoC"
5d4294c5	385	depends on PLAT_ORION && MTD_NAND
2a1dba29 TP	386	help
	387	This enables the NAND flash controller on Orion machines.
	388
	389	No board specific support is done by this driver, each board
	390	must advertise a platform_device for the driver to attach.
	391
76b10467 SW	392	config MTD_NAND_FSL_ELBC
	393	tristate "NAND support for Freescale eLBC controllers"
	394	depends on MTD_NAND && PPC_OF
	395	help
	396	Various Freescale chips, including the 8313, include a NAND Flash
	397	Controller Module with built-in hardware ECC capabilities.
	398	Enabling this option will enable you to use this to control
	399	external NAND devices.
	400
5c249c5a AV	401	config MTD_NAND_FSL_UPM
5c249c5a AV	402	tristate "Support for NAND on Freescale UPM"
13f53697	403	depends on MTD_NAND && (PPC_83xx \|\| PPC_85xx)
5c249c5a AV	404	select FSL_LBC
	405	help
	406	Enables support for NAND Flash chips wired onto Freescale PowerPC
	407	processor localbus with User-Programmable Machine support.
	408
34f6e157 SH	409	config MTD_NAND_MXC
	410	tristate "MXC NAND support"
	411	depends on ARCH_MX2
	412	help
	413	This enables the driver for the NAND flash controller on the
	414	MXC processors.
	415
6028aa01 YS	416	config MTD_NAND_SH_FLCTL
	417	tristate "Support for NAND on Renesas SuperH FLCTL"
	418	depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
	419	help
	420	Several Renesas SuperH CPU has FLCTL. This option enables support
	421	for NAND Flash using FLCTL. This driver support SH7723.
	422
ec98c681	423	endif # MTD_NAND