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

# drivers/mtd/nand/Kconfig
# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $

menu "NAND Flash Device Drivers"
	depends on MTD!=n

config 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/tech/nand.html>.

config MTD_NAND_VERIFY_WRITE
	bool "Verify NAND page writes"
	depends on MTD_NAND
	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 accidentaly due to device wear or something else.

config MTD_NAND_ECC_SMC
	bool "NAND ECC Smart Media byte order"
	depends on MTD_NAND
	default n
	help
	  Software ECC according to the Smart Media Specification.
	  The original Linux implementation had byte 0 and 1 swapped.

config MTD_NAND_AUTCPU12
	tristate "SmartMediaCard on autronix autcpu12 board"
	depends on MTD_NAND && 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 MTD_NAND && 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 MTD_NAND && 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 && MTD_NAND
	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 && MTD_NAND
	help
	  Support for NAND flash on Amstrad E3 (Delta).

config MTD_NAND_TOTO
	tristate "NAND Flash device on TOTO board"
	depends on ARCH_OMAP && MTD_NAND
	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 && MTD_NAND
	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) && MTD_NAND
	help
	  This enables the driver for the NAND flash controller on the
	  AMD/Alchemy 1550 SOC.

config MTD_NAND_RTC_FROM4
	tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
	depends on MTD_NAND && SH_SOLUTION_ENGINE
	select REED_SOLOMON
	select REED_SOLOMON_DEC8
	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 && MTD_NAND
	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 && MTD_NAND
	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.

	  If you lay down a device with the hardware ECC, then you will
	  currently not be able to switch to software, as there is no
	  implementation for ECC method used by the S3C2410

config MTD_NAND_NDFC
	tristate "NDFC NanD Flash Controller"
	depends on MTD_NAND && 44x
	help
	 NDFC Nand Flash Controllers are integrated in EP44x SoCs

config MTD_NAND_DISKONCHIP
	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
	depends on MTD_NAND && 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 MTD_NAND && ARCH_PXA

config MTD_NAND_CS553X
	tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
	depends on MTD_NAND && X86_PC && PCI
	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_NANDSIM
	tristate "Support for NAND Flash Simulator"
	depends on MTD_NAND && MTD_PARTITIONS
	help
	  The simulator may simulate various NAND flash chips for the
	  MTD nand layer.

endmenu
Commit	Line	Data
1da177e4	1	# drivers/mtd/nand/Kconfig
61b03bd7	2	# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
1da177e4 LT	3
	4	menu "NAND Flash Device Drivers"
	5	depends on MTD!=n
	6
	7	config MTD_NAND
	8	tristate "NAND Device Support"
	9	depends on MTD
	10	select MTD_NAND_IDS
	11	help
	12	This enables support for accessing all type of NAND flash
	13	devices. For further information see
	14	<http://www.linux-mtd.infradead.org/tech/nand.html>.
	15
	16	config MTD_NAND_VERIFY_WRITE
	17	bool "Verify NAND page writes"
	18	depends on MTD_NAND
	19	help
	20	This adds an extra check when data is written to the flash. The
	21	NAND flash device internally checks only bits transitioning
	22	from 1 to 0. There is a rare possibility that even though the
	23	device thinks the write was successful, a bit could have been
	24	flipped accidentaly due to device wear or something else.
	25
819d6a32 TG	26	config MTD_NAND_ECC_SMC
	27	bool "NAND ECC Smart Media byte order"
	28	depends on MTD_NAND
	29	default n
	30	help
	31	Software ECC according to the Smart Media Specification.
	32	The original Linux implementation had byte 0 and 1 swapped.
	33
1da177e4 LT	34	config MTD_NAND_AUTCPU12
1da177e4 LT	35	tristate "SmartMediaCard on autronix autcpu12 board"
30966174	36	depends on MTD_NAND && ARCH_AUTCPU12
1da177e4	37	help
61b03bd7	38	This enables the driver for the autronix autcpu12 board to
1da177e4 LT	39	access the SmartMediaCard.
	40
	41	config MTD_NAND_EDB7312
	42	tristate "Support for Cirrus Logic EBD7312 evaluation board"
30966174	43	depends on MTD_NAND && ARCH_EDB7312
1da177e4	44	help
61b03bd7	45	This enables the driver for the Cirrus Logic EBD7312 evaluation
1da177e4 LT	46	board to access the onboard NAND Flash.
	47
	48	config MTD_NAND_H1900
	49	tristate "iPAQ H1900 flash"
30966174	50	depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
1da177e4 LT	51	help
	52	This enables the driver for the iPAQ h1900 flash.
	53
	54	config MTD_NAND_SPIA
	55	tristate "NAND Flash device on SPIA board"
30966174	56	depends on ARCH_P720T && MTD_NAND
1da177e4 LT	57	help
	58	If you had to ask, you don't have one. Say 'N'.
	59
3d12c0c7 JM	60	config MTD_NAND_AMS_DELTA
	61	tristate "NAND Flash device on Amstrad E3"
	62	depends on MACH_AMS_DELTA && MTD_NAND
	63	help
	64	Support for NAND flash on Amstrad E3 (Delta).
	65
1da177e4 LT	66	config MTD_NAND_TOTO
1da177e4 LT	67	tristate "NAND Flash device on TOTO board"
30966174	68	depends on ARCH_OMAP && MTD_NAND
1da177e4 LT	69	help
	70	Support for NAND flash on Texas Instruments Toto platform.
	71
7d532dd5 LB	72	config MTD_NAND_TS7250
	73	tristate "NAND Flash device on TS-7250 board"
	74	depends on MACH_TS72XX && MTD_NAND
	75	help
	76	Support for NAND flash on Technologic Systems TS-7250 platform.
	77
1da177e4 LT	78	config MTD_NAND_IDS
	79	tristate
	80
1da177e4	81	config MTD_NAND_AU1550
ef6f0d1f PP	82	tristate "Au1550/1200 NAND support"
ef6f0d1f PP	83	depends on (SOC_AU1200 \|\| SOC_AU1550) && MTD_NAND
1da177e4 LT	84	help
	85	This enables the driver for the NAND flash controller on the
	86	AMD/Alchemy 1550 SOC.
	87
	88	config MTD_NAND_RTC_FROM4
	89	tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
	90	depends on MTD_NAND && SH_SOLUTION_ENGINE
	91	select REED_SOLOMON
	92	select REED_SOLOMON_DEC8
	93	help
61b03bd7	94	This enables the driver for the Renesas Technology AG-AND
1da177e4 LT	95	flash interface board (FROM_BOARD4)
	96
	97	config MTD_NAND_PPCHAMELEONEVB
	98	tristate "NAND Flash device on PPChameleonEVB board"
	99	depends on PPCHAMELEONEVB && MTD_NAND
	100	help
	101	This enables the NAND flash driver on the PPChameleon EVB Board.
	102
	103	config MTD_NAND_S3C2410
a4f957f1	104	tristate "NAND Flash support for S3C2410/S3C2440 SoC"
1da177e4 LT	105	depends on ARCH_S3C2410 && MTD_NAND
1da177e4 LT	106	help
a4f957f1 BD	107	This enables the NAND flash controller on the S3C2410 and S3C2440
a4f957f1 BD	108	SoCs
1da177e4	109
4992a9e8	110	No board specific support is done by this driver, each board
61b03bd7	111	must advertise a platform_device for the driver to attach.
1da177e4 LT	112
	113	config MTD_NAND_S3C2410_DEBUG
	114	bool "S3C2410 NAND driver debug"
	115	depends on MTD_NAND_S3C2410
	116	help
	117	Enable debugging of the S3C2410 NAND driver
	118
	119	config MTD_NAND_S3C2410_HWECC
	120	bool "S3C2410 NAND Hardware ECC"
	121	depends on MTD_NAND_S3C2410
	122	help
	123	Enable the use of the S3C2410's internal ECC generator when
	124	using NAND. Early versions of the chip have had problems with
	125	incorrect ECC generation, and if using these, the default of
	126	software ECC is preferable.
	127
	128	If you lay down a device with the hardware ECC, then you will
	129	currently not be able to switch to software, as there is no
	130	implementation for ECC method used by the S3C2410
	131
ce4c61f1 TG	132	config MTD_NAND_NDFC
	133	tristate "NDFC NanD Flash Controller"
	134	depends on MTD_NAND && 44x
	135	help
	136	NDFC Nand Flash Controllers are integrated in EP44x SoCs
	137
1da177e4 LT	138	config MTD_NAND_DISKONCHIP
	139	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
	140	depends on MTD_NAND && EXPERIMENTAL
	141	select REED_SOLOMON
	142	select REED_SOLOMON_DEC16
	143	help
	144	This is a reimplementation of M-Systems DiskOnChip 2000,
	145	Millennium and Millennium Plus as a standard NAND device driver,
	146	as opposed to the earlier self-contained MTD device drivers.
	147	This should enable, among other things, proper JFFS2 operation on
	148	these devices.
	149
	150	config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	151	bool "Advanced detection options for DiskOnChip"
	152	depends on MTD_NAND_DISKONCHIP
	153	help
	154	This option allows you to specify nonstandard address at which to
	155	probe for a DiskOnChip, or to change the detection options. You
	156	are unlikely to need any of this unless you are using LinuxBIOS.
	157	Say 'N'.
	158
	159	config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
	160	hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	161	depends on MTD_NAND_DISKONCHIP
	162	default "0"
	163	---help---
	164	By default, the probe for DiskOnChip devices will look for a
	165	DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
	166	This option allows you to specify a single address at which to probe
	167	for the device, which is useful if you have other devices in that
	168	range which get upset when they are probed.
	169
	170	(Note that on PowerPC, the normal probe will only check at
	171	0xE4000000.)
	172
	173	Normally, you should leave this set to zero, to allow the probe at
	174	the normal addresses.
	175
	176	config MTD_NAND_DISKONCHIP_PROBE_HIGH
	177	bool "Probe high addresses"
	178	depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
	179	help
	180	By default, the probe for DiskOnChip devices will look for a
	181	DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
	182	This option changes to make it probe between 0xFFFC8000 and
	183	0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
	184	useful to you. Say 'N'.
	185
	186	config MTD_NAND_DISKONCHIP_BBTWRITE
	187	bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
	188	depends on MTD_NAND_DISKONCHIP
	189	help
	190	On DiskOnChip devices shipped with the INFTL filesystem (Millennium
	191	and 2000 TSOP/Alon), Linux reserves some space at the end of the
	192	device for the Bad Block Table (BBT). If you have existing INFTL
	193	data on your device (created by non-Linux tools such as M-Systems'
	194	DOS drivers), your data might overlap the area Linux wants to use for
	195	the BBT. If this is a concern for you, leave this option disabled and
	196	Linux will not write BBT data into this area.
	197	The downside of leaving this option disabled is that if bad blocks
	198	are detected by Linux, they will not be recorded in the BBT, which
	199	could cause future problems.
	200	Once you enable this option, new filesystems (INFTL or others, created
	201	in Linux or other operating systems) will not use the reserved area.
202	The only reason not to enable this option is to prevent damage to
203	preexisting filesystems.
204	Even if you leave this disabled, you can enable BBT writes at module
205	load time (assuming you build diskonchip as a module) with the module
206	parameter "inftl_bbt_write=1".
1da177e4	207
54af6b46 AB	208	config MTD_NAND_SHARPSL
	209	tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
	210	depends on MTD_NAND && ARCH_PXA
	211
179fdc3f DW	212	config MTD_NAND_CS553X
	213	tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
	214	depends on MTD_NAND && X86_PC && PCI
f41a5f80 DW	215	help
	216	The CS553x companion chips for the AMD Geode processor
	217	include NAND flash controllers with built-in hardware ECC
	218	capabilities; enabling this option will allow you to use
	219	these. The driver will check the MSRs to verify that the
	220	controller is enabled for NAND, and currently requires that
	221	the controller be in MMIO mode.
	222
	223	If you say "m", the module will be called "cs553x_nand.ko".
	224
54af6b46 AB	225	config MTD_NAND_NANDSIM
	226	tristate "Support for NAND Flash Simulator"
	227	depends on MTD_NAND && MTD_PARTITIONS
1da177e4	228	help
f41a5f80	229	The simulator may simulate various NAND flash chips for the
1da177e4	230	MTD nand layer.
54af6b46	231
1da177e4	232	endmenu