drivers/mtd/nand/Kconfig - linux - Git at Google


            
            # 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 && 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 && 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 && 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 && 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_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 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_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_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
	# 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 && 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 && 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 && 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 && 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_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 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_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_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