179fdc3f8d
This lacks hardware ECC support and a few optimisations we're going to want fairly soon, but it works well enough to mount and use JFFS2. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
204 lines
7.2 KiB
Plaintext
204 lines
7.2 KiB
Plaintext
# drivers/mtd/nand/Kconfig
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# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
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menu "NAND Flash Device Drivers"
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depends on MTD!=n
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config MTD_NAND
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tristate "NAND Device Support"
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depends on MTD
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select MTD_NAND_IDS
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help
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This enables support for accessing all type of NAND flash
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devices. For further information see
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<http://www.linux-mtd.infradead.org/tech/nand.html>.
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config MTD_NAND_VERIFY_WRITE
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bool "Verify NAND page writes"
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depends on MTD_NAND
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help
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This adds an extra check when data is written to the flash. The
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NAND flash device internally checks only bits transitioning
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from 1 to 0. There is a rare possibility that even though the
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device thinks the write was successful, a bit could have been
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flipped accidentaly due to device wear or something else.
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config MTD_NAND_AUTCPU12
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tristate "SmartMediaCard on autronix autcpu12 board"
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depends on MTD_NAND && ARCH_AUTCPU12
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help
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This enables the driver for the autronix autcpu12 board to
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access the SmartMediaCard.
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config MTD_NAND_EDB7312
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tristate "Support for Cirrus Logic EBD7312 evaluation board"
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depends on MTD_NAND && ARCH_EDB7312
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help
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This enables the driver for the Cirrus Logic EBD7312 evaluation
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board to access the onboard NAND Flash.
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config MTD_NAND_H1900
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tristate "iPAQ H1900 flash"
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depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
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help
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This enables the driver for the iPAQ h1900 flash.
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config MTD_NAND_SPIA
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tristate "NAND Flash device on SPIA board"
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depends on ARCH_P720T && MTD_NAND
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help
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If you had to ask, you don't have one. Say 'N'.
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config MTD_NAND_TOTO
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tristate "NAND Flash device on TOTO board"
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depends on ARCH_OMAP && MTD_NAND
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help
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Support for NAND flash on Texas Instruments Toto platform.
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config MTD_NAND_TS7250
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tristate "NAND Flash device on TS-7250 board"
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depends on MACH_TS72XX && MTD_NAND
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help
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Support for NAND flash on Technologic Systems TS-7250 platform.
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config MTD_NAND_IDS
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tristate
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config MTD_NAND_AU1550
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tristate "Au1550/1200 NAND support"
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depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
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help
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This enables the driver for the NAND flash controller on the
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AMD/Alchemy 1550 SOC.
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config MTD_NAND_RTC_FROM4
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tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
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depends on MTD_NAND && SH_SOLUTION_ENGINE
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select REED_SOLOMON
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select REED_SOLOMON_DEC8
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help
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This enables the driver for the Renesas Technology AG-AND
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flash interface board (FROM_BOARD4)
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config MTD_NAND_PPCHAMELEONEVB
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tristate "NAND Flash device on PPChameleonEVB board"
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depends on PPCHAMELEONEVB && MTD_NAND
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help
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This enables the NAND flash driver on the PPChameleon EVB Board.
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config MTD_NAND_S3C2410
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tristate "NAND Flash support for S3C2410/S3C2440 SoC"
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depends on ARCH_S3C2410 && MTD_NAND
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help
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This enables the NAND flash controller on the S3C2410 and S3C2440
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SoCs
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No board specfic support is done by this driver, each board
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must advertise a platform_device for the driver to attach.
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config MTD_NAND_S3C2410_DEBUG
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bool "S3C2410 NAND driver debug"
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depends on MTD_NAND_S3C2410
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help
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Enable debugging of the S3C2410 NAND driver
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config MTD_NAND_S3C2410_HWECC
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bool "S3C2410 NAND Hardware ECC"
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depends on MTD_NAND_S3C2410
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help
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Enable the use of the S3C2410's internal ECC generator when
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using NAND. Early versions of the chip have had problems with
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incorrect ECC generation, and if using these, the default of
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software ECC is preferable.
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If you lay down a device with the hardware ECC, then you will
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currently not be able to switch to software, as there is no
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implementation for ECC method used by the S3C2410
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config MTD_NAND_DISKONCHIP
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tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
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depends on MTD_NAND && EXPERIMENTAL
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select REED_SOLOMON
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select REED_SOLOMON_DEC16
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help
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This is a reimplementation of M-Systems DiskOnChip 2000,
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Millennium and Millennium Plus as a standard NAND device driver,
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as opposed to the earlier self-contained MTD device drivers.
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This should enable, among other things, proper JFFS2 operation on
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these devices.
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config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
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bool "Advanced detection options for DiskOnChip"
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depends on MTD_NAND_DISKONCHIP
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help
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This option allows you to specify nonstandard address at which to
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probe for a DiskOnChip, or to change the detection options. You
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are unlikely to need any of this unless you are using LinuxBIOS.
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Say 'N'.
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config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
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hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
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depends on MTD_NAND_DISKONCHIP
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default "0"
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---help---
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By default, the probe for DiskOnChip devices will look for a
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DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
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This option allows you to specify a single address at which to probe
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for the device, which is useful if you have other devices in that
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range which get upset when they are probed.
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(Note that on PowerPC, the normal probe will only check at
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0xE4000000.)
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Normally, you should leave this set to zero, to allow the probe at
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the normal addresses.
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config MTD_NAND_DISKONCHIP_PROBE_HIGH
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bool "Probe high addresses"
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depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
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help
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By default, the probe for DiskOnChip devices will look for a
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DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
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This option changes to make it probe between 0xFFFC8000 and
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0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
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useful to you. Say 'N'.
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config MTD_NAND_DISKONCHIP_BBTWRITE
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bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
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depends on MTD_NAND_DISKONCHIP
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help
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On DiskOnChip devices shipped with the INFTL filesystem (Millennium
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and 2000 TSOP/Alon), Linux reserves some space at the end of the
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device for the Bad Block Table (BBT). If you have existing INFTL
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data on your device (created by non-Linux tools such as M-Systems'
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DOS drivers), your data might overlap the area Linux wants to use for
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the BBT. If this is a concern for you, leave this option disabled and
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Linux will not write BBT data into this area.
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The downside of leaving this option disabled is that if bad blocks
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are detected by Linux, they will not be recorded in the BBT, which
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could cause future problems.
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Once you enable this option, new filesystems (INFTL or others, created
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in Linux or other operating systems) will not use the reserved area.
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The only reason not to enable this option is to prevent damage to
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preexisting filesystems.
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Even if you leave this disabled, you can enable BBT writes at module
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load time (assuming you build diskonchip as a module) with the module
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parameter "inftl_bbt_write=1".
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config MTD_NAND_SHARPSL
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tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
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depends on MTD_NAND && ARCH_PXA
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config MTD_NAND_CS553X
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tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
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depends on MTD_NAND && X86_PC && PCI
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config MTD_NAND_NANDSIM
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tristate "Support for NAND Flash Simulator"
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depends on MTD_NAND && MTD_PARTITIONS
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help
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The simulator may simulate verious NAND flash chips for the
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MTD nand layer.
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endmenu
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