[linux-2.6-block.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_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_TOTO
	tristate "NAND Flash device on TOTO board"
	depends on ARCH_OMAP && BROKEN
	help
	  Support for NAND flash on Texas Instruments Toto platform.

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"
	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_NDFC
	tristate "NDFC NanD Flash Controller"
	depends on 4xx && !PPC_MERGE
	select MTD_NAND_ECC_SMC
	help
	 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs

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_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_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 && OF_GPIO && (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.

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
	59	config MTD_NAND_SPIA
	60	tristate "NAND Flash device on SPIA board"
ec98c681	61	depends on ARCH_P720T
1da177e4 LT	62	help
	63	If you had to ask, you don't have one. Say 'N'.
	64
3d12c0c7 JM	65	config MTD_NAND_AMS_DELTA
3d12c0c7 JM	66	tristate "NAND Flash device on Amstrad E3"
ec98c681	67	depends on MACH_AMS_DELTA
3d12c0c7 JM	68	help
	69	Support for NAND flash on Amstrad E3 (Delta).
	70
1da177e4 LT	71	config MTD_NAND_TOTO
1da177e4 LT	72	tristate "NAND Flash device on TOTO board"
ec98c681	73	depends on ARCH_OMAP && BROKEN
1da177e4 LT	74	help
	75	Support for NAND flash on Texas Instruments Toto platform.
	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"
	107	depends on MTD_NAND_BF5XX
	108	help
	109	Enable the use of the BF5XX's internal ECC generator when
	110	using NAND.
	111
fcb90ba7 MF	112	config MTD_NAND_BF5XX_BOOTROM_ECC
	113	bool "Use Blackfin BootROM ECC Layout"
	114	default n
	115	depends on MTD_NAND_BF5XX_HWECC
	116	help
	117	If you wish to modify NAND pages and allow the Blackfin on-chip
	118	BootROM to boot from them, say Y here. This is only necessary
	119	if you are booting U-Boot out of NAND and you wish to update
	120	U-Boot from Linux' userspace. Otherwise, you should say N here.
	121
	122	If unsure, say N.
	123
1da177e4 LT	124	config MTD_NAND_RTC_FROM4
1da177e4 LT	125	tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
ec98c681	126	depends on SH_SOLUTION_ENGINE
1da177e4 LT	127	select REED_SOLOMON
1da177e4 LT	128	select REED_SOLOMON_DEC8
1605cd3d	129	select BITREVERSE
1da177e4	130	help
61b03bd7	131	This enables the driver for the Renesas Technology AG-AND
1da177e4 LT	132	flash interface board (FROM_BOARD4)
	133
	134	config MTD_NAND_PPCHAMELEONEVB
	135	tristate "NAND Flash device on PPChameleonEVB board"
ec98c681	136	depends on PPCHAMELEONEVB && BROKEN
1da177e4 LT	137	help
	138	This enables the NAND flash driver on the PPChameleon EVB Board.
	139
	140	config MTD_NAND_S3C2410
a4f957f1	141	tristate "NAND Flash support for S3C2410/S3C2440 SoC"
ec98c681	142	depends on ARCH_S3C2410
1da177e4	143	help
a4f957f1 BD	144	This enables the NAND flash controller on the S3C2410 and S3C2440
a4f957f1 BD	145	SoCs
1da177e4	146
4992a9e8	147	No board specific support is done by this driver, each board
61b03bd7	148	must advertise a platform_device for the driver to attach.
1da177e4 LT	149
	150	config MTD_NAND_S3C2410_DEBUG
	151	bool "S3C2410 NAND driver debug"
	152	depends on MTD_NAND_S3C2410
	153	help
	154	Enable debugging of the S3C2410 NAND driver
	155
	156	config MTD_NAND_S3C2410_HWECC
	157	bool "S3C2410 NAND Hardware ECC"
	158	depends on MTD_NAND_S3C2410
	159	help
	160	Enable the use of the S3C2410's internal ECC generator when
	161	using NAND. Early versions of the chip have had problems with
	162	incorrect ECC generation, and if using these, the default of
	163	software ECC is preferable.
	164
ce4c61f1 TG	165	config MTD_NAND_NDFC
ce4c61f1 TG	166	tristate "NDFC NanD Flash Controller"
62d24d91	167	depends on 4xx && !PPC_MERGE
418b2e56	168	select MTD_NAND_ECC_SMC
ce4c61f1	169	help
02d92918	170	NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
ce4c61f1	171
d1fef3c5 BD	172	config MTD_NAND_S3C2410_CLKSTOP
	173	bool "S3C2410 NAND IDLE clock stop"
	174	depends on MTD_NAND_S3C2410
	175	default n
	176	help
	177	Stop the clock to the NAND controller when there is no chip
	178	selected to save power. This will mean there is a small delay
	179	when the is NAND chip selected or released, but will save
	180	approximately 5mA of power when there is nothing happening.
	181
1da177e4 LT	182	config MTD_NAND_DISKONCHIP
1da177e4 LT	183	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
ec98c681	184	depends on EXPERIMENTAL
1da177e4 LT	185	select REED_SOLOMON
	186	select REED_SOLOMON_DEC16
	187	help
	188	This is a reimplementation of M-Systems DiskOnChip 2000,
	189	Millennium and Millennium Plus as a standard NAND device driver,
	190	as opposed to the earlier self-contained MTD device drivers.
	191	This should enable, among other things, proper JFFS2 operation on
	192	these devices.
	193
	194	config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	195	bool "Advanced detection options for DiskOnChip"
	196	depends on MTD_NAND_DISKONCHIP
	197	help
	198	This option allows you to specify nonstandard address at which to
	199	probe for a DiskOnChip, or to change the detection options. You
	200	are unlikely to need any of this unless you are using LinuxBIOS.
	201	Say 'N'.
	202
	203	config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
	204	hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	205	depends on MTD_NAND_DISKONCHIP
	206	default "0"
	207	---help---
	208	By default, the probe for DiskOnChip devices will look for a
	209	DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
	210	This option allows you to specify a single address at which to probe
	211	for the device, which is useful if you have other devices in that
	212	range which get upset when they are probed.
	213
	214	(Note that on PowerPC, the normal probe will only check at
	215	0xE4000000.)
	216
	217	Normally, you should leave this set to zero, to allow the probe at
	218	the normal addresses.
	219
	220	config MTD_NAND_DISKONCHIP_PROBE_HIGH
	221	bool "Probe high addresses"
	222	depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	223	help
	224	By default, the probe for DiskOnChip devices will look for a
	225	DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
	226	This option changes to make it probe between 0xFFFC8000 and
	227	0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
	228	useful to you. Say 'N'.
	229
	230	config MTD_NAND_DISKONCHIP_BBTWRITE
	231	bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
	232	depends on MTD_NAND_DISKONCHIP
	233	help
	234	On DiskOnChip devices shipped with the INFTL filesystem (Millennium
	235	and 2000 TSOP/Alon), Linux reserves some space at the end of the
	236	device for the Bad Block Table (BBT). If you have existing INFTL
	237	data on your device (created by non-Linux tools such as M-Systems'
	238	DOS drivers), your data might overlap the area Linux wants to use for
	239	the BBT. If this is a concern for you, leave this option disabled and
	240	Linux will not write BBT data into this area.
	241	The downside of leaving this option disabled is that if bad blocks
	242	are detected by Linux, they will not be recorded in the BBT, which
	243	could cause future problems.
	244	Once you enable this option, new filesystems (INFTL or others, created
	245	in Linux or other operating systems) will not use the reserved area.
	246	The only reason not to enable this option is to prevent damage to
	247	preexisting filesystems.
	248	Even if you leave this disabled, you can enable BBT writes at module
249	load time (assuming you build diskonchip as a module) with the module
250	parameter "inftl_bbt_write=1".
1da177e4	251
54af6b46 AB	252	config MTD_NAND_SHARPSL
54af6b46 AB	253	tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
ec98c681	254	depends on ARCH_PXA
54af6b46	255
67a9c7af TK	256	config MTD_NAND_BASLER_EXCITE
67a9c7af TK	257	tristate "Support for NAND Flash on Basler eXcite"
ec98c681	258	depends on BASLER_EXCITE
67a9c7af TK	259	help
	260	This enables the driver for the NAND flash device found on the
	261	Basler eXcite Smart Camera. If built as a module, the driver
	262	will be named "excite_nandflash.ko".
	263
c45aa055	264	config MTD_NAND_CAFE
8c61b7a7 SB	265	tristate "NAND support for OLPC CAFÉ chip"
	266	depends on PCI
	267	select REED_SOLOMON
	268	select REED_SOLOMON_DEC16
	269	help
8f46c527	270	Use NAND flash attached to the CAFÉ chip designed for the OLPC
8c61b7a7	271	laptop.
c45aa055	272
179fdc3f DW	273	config MTD_NAND_CS553X
179fdc3f DW	274	tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
ec98c681	275	depends on X86_32 && (X86_PC \|\| X86_GENERICARCH)
f41a5f80 DW	276	help
	277	The CS553x companion chips for the AMD Geode processor
	278	include NAND flash controllers with built-in hardware ECC
	279	capabilities; enabling this option will allow you to use
	280	these. The driver will check the MSRs to verify that the
	281	controller is enabled for NAND, and currently requires that
	282	the controller be in MMIO mode.
	283
	284	If you say "m", the module will be called "cs553x_nand.ko".
	285
d4f4c0aa	286	config MTD_NAND_ATMEL
bd5a4382	287	tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
984290de	288	depends on ARCH_AT91 \|\| AVR32
42cb1403 AV	289	help
42cb1403 AV	290	Enables support for NAND Flash / Smart Media Card interface
984290de	291	on Atmel AT91 and AVR32 processors.
77f5492c	292	choice
984290de	293	prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
d4f4c0aa	294	depends on MTD_NAND_ATMEL
77f5492c	295
d4f4c0aa	296	config MTD_NAND_ATMEL_ECC_HW
77f5492c	297	bool "Hardware ECC"
984290de	298	depends on ARCH_AT91SAM9263 \|\| ARCH_AT91SAM9260 \|\| AVR32
77f5492c	299	help
d4f4c0aa HS	300	Use hardware ECC instead of software ECC when the chip
	301	supports it.
	302
77f5492c RG	303	The hardware ECC controller is capable of single bit error
	304	correction and 2-bit random detection per page.
	305
	306	NB : hardware and software ECC schemes are incompatible.
	307	If you switch from one to another, you'll have to erase your
	308	mtd partition.
	309
	310	If unsure, say Y
	311
d4f4c0aa	312	config MTD_NAND_ATMEL_ECC_SOFT
77f5492c RG	313	bool "Software ECC"
77f5492c RG	314	help
d4f4c0aa	315	Use software ECC.
77f5492c RG	316
	317	NB : hardware and software ECC schemes are incompatible.
	318	If you switch from one to another, you'll have to erase your
	319	mtd partition.
	320
d4f4c0aa	321	config MTD_NAND_ATMEL_ECC_NONE
77f5492c RG	322	bool "No ECC (testing only, DANGEROUS)"
	323	depends on DEBUG_KERNEL
	324	help
	325	No ECC will be used.
	326	It's not a good idea and it should be reserved for testing
	327	purpose only.
	328
	329	If unsure, say N
	330
	331	endchoice
	332
	333	endchoice
42cb1403	334
fe69af00	335	config MTD_NAND_PXA3xx
	336	bool "Support for NAND flash devices on PXA3xx"
	337	depends on MTD_NAND && PXA3xx
	338	help
	339	This enables the driver for the NAND flash device found on
	340	PXA3xx processors
	341
54d33c4c MR	342	config MTD_NAND_CM_X270
	343	tristate "Support for NAND Flash on CM-X270 modules"
	344	depends on MTD_NAND && MACH_ARMCORE
	345
846fc31d EM	346	config MTD_NAND_PASEMI
	347	tristate "NAND support for PA Semi PWRficient"
	348	depends on MTD_NAND && PPC_PASEMI
	349	help
	350	Enables support for NAND Flash interface on PA Semi PWRficient
	351	based boards
54d33c4c	352
54af6b46 AB	353	config MTD_NAND_NANDSIM
54af6b46 AB	354	tristate "Support for NAND Flash Simulator"
ec98c681	355	depends on MTD_PARTITIONS
1da177e4	356	help
f41a5f80	357	The simulator may simulate various NAND flash chips for the
1da177e4	358	MTD nand layer.
54af6b46	359
711fdf62 VW	360	config MTD_NAND_PLATFORM
	361	tristate "Support for generic platform NAND driver"
	362	depends on MTD_NAND
	363	help
	364	This implements a generic NAND driver for on-SOC platform
	365	devices. You will need to provide platform-specific functions
	366	via platform_data.
	367
e208520e	368	config MTD_ALAUDA
42265940	369	tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
e208520e JE	370	depends on MTD_NAND && USB
	371	help
	372	These two (and possibly other) Alauda-based cardreaders for
	373	SmartMedia and xD allow raw flash access.
711fdf62	374
2a1dba29 TP	375	config MTD_NAND_ORION
2a1dba29 TP	376	tristate "NAND Flash support for Marvell Orion SoC"
5d4294c5	377	depends on PLAT_ORION && MTD_NAND
2a1dba29 TP	378	help
	379	This enables the NAND flash controller on Orion machines.
	380
	381	No board specific support is done by this driver, each board
	382	must advertise a platform_device for the driver to attach.
	383
76b10467 SW	384	config MTD_NAND_FSL_ELBC
	385	tristate "NAND support for Freescale eLBC controllers"
	386	depends on MTD_NAND && PPC_OF
	387	help
	388	Various Freescale chips, including the 8313, include a NAND Flash
	389	Controller Module with built-in hardware ECC capabilities.
	390	Enabling this option will enable you to use this to control
	391	external NAND devices.
	392
5c249c5a AV	393	config MTD_NAND_FSL_UPM
	394	tristate "Support for NAND on Freescale UPM"
	395	depends on MTD_NAND && OF_GPIO && (PPC_83xx \|\| PPC_85xx)
	396	select FSL_LBC
	397	help
	398	Enables support for NAND Flash chips wired onto Freescale PowerPC
	399	processor localbus with User-Programmable Machine support.
	400
ec98c681	401	endif # MTD_NAND