# drivers/mtd/chips/Kconfig
-# $Id: Kconfig,v 1.18 2005/11/07 11:14:22 gleixner Exp $
menu "RAM/ROM/Flash chip drivers"
depends on MTD!=n
config MTD_CFI
tristate "Detect flash chips by Common Flash Interface (CFI) probe"
- depends on MTD
select MTD_GEN_PROBE
+ select MTD_CFI_UTIL
help
The Common Flash Interface specification was developed by Intel,
AMD and other flash manufactures that provides a universal method
config MTD_JEDECPROBE
tristate "Detect non-CFI AMD/JEDEC-compatible flash chips"
- depends on MTD
select MTD_GEN_PROBE
help
This option enables JEDEC-style probing of flash chips which are not
compatible with the Common Flash Interface, but will use the common
CFI-targetted flash drivers for any chips which are identified which
are in fact compatible in all but the probe method. This actually
- covers most AMD/Fujitsu-compatible chips, and will shortly cover also
- non-CFI Intel chips (that code is in MTD CVS and should shortly be sent
- for inclusion in Linus' tree)
+ covers most AMD/Fujitsu-compatible chips and also non-CFI
+ Intel chips.
config MTD_GEN_PROBE
tristate
config MTD_OTP
bool "Protection Registers aka one-time programmable (OTP) bits"
depends on MTD_CFI_ADV_OPTIONS
+ select HAVE_MTD_OTP
default n
help
This enables support for reading, writing and locking so called
StrataFlash and other parts.
config MTD_CFI_AMDSTD
- tristate "Support for AMD/Fujitsu flash chips"
+ tristate "Support for AMD/Fujitsu/Spansion flash chips"
depends on MTD_GEN_PROBE
select MTD_CFI_UTIL
help
provides support for one of those command sets, used on chips
including the AMD Am29LV320.
-config MTD_CFI_AMDSTD_RETRY
- int "Retry failed commands (erase/program)"
- depends on MTD_CFI_AMDSTD
- default "0"
- help
- Some chips, when attached to a shared bus, don't properly filter
- bus traffic that is destined to other devices. This broken
- behavior causes erase and program sequences to be aborted when
- the sequences are mixed with traffic for other devices.
-
- SST49LF040 (and related) chips are know to be broken.
-
-config MTD_CFI_AMDSTD_RETRY_MAX
- int "Max retries of failed commands (erase/program)"
- depends on MTD_CFI_AMDSTD_RETRY
- default "0"
- help
- If you have an SST49LF040 (or related chip) then this value should
- be set to at least 1. This can also be adjusted at driver load
- time with the retry_cmd_max module parameter.
-
config MTD_CFI_STAA
tristate "Support for ST (Advanced Architecture) flash chips"
depends on MTD_GEN_PROBE
config MTD_RAM
tristate "Support for RAM chips in bus mapping"
- depends on MTD
help
This option enables basic support for RAM chips accessed through
a bus mapping driver.
config MTD_ROM
tristate "Support for ROM chips in bus mapping"
- depends on MTD
help
This option enables basic support for ROM chips accessed through
a bus mapping driver.
config MTD_ABSENT
tristate "Support for absent chips in bus mapping"
- depends on MTD
help
This option enables support for a dummy probing driver used to
allocated placeholder MTD devices on systems that have socketed
the system regardless of media presence. Device nodes created
with this driver will return -ENODEV upon access.
-config MTD_OBSOLETE_CHIPS
- depends on MTD && BROKEN
- bool "Older (theoretically obsoleted now) drivers for non-CFI chips"
- help
- This option does not enable any code directly, but will allow you to
- select some other chip drivers which are now considered obsolete,
- because the generic CONFIG_JEDECPROBE code above should now detect
- the chips which are supported by these drivers, and allow the generic
- CFI-compatible drivers to drive the chips. Say 'N' here unless you have
- already tried the CONFIG_JEDECPROBE method and reported its failure
- to the MTD mailing list at <linux-mtd@lists.infradead.org>
-
-config MTD_AMDSTD
- tristate "AMD compatible flash chip support (non-CFI)"
- depends on MTD && MTD_OBSOLETE_CHIPS
- help
- This option enables support for flash chips using AMD-compatible
- commands, including some which are not CFI-compatible and hence
- cannot be used with the CONFIG_MTD_CFI_AMDSTD option.
-
- It also works on AMD compatible chips that do conform to CFI.
-
-config MTD_SHARP
- tristate "pre-CFI Sharp chip support"
- depends on MTD && MTD_OBSOLETE_CHIPS
- help
- This option enables support for flash chips using Sharp-compatible
- commands, including some which are not CFI-compatible and hence
- cannot be used with the CONFIG_MTD_CFI_INTELxxx options.
-
-config MTD_JEDEC
- tristate "JEDEC device support"
- depends on MTD && MTD_OBSOLETE_CHIPS
- help
- Enable older older JEDEC flash interface devices for self
- programming flash. It is commonly used in older AMD chips. It is
- only called JEDEC because the JEDEC association
- <http://www.jedec.org/> distributes the identification codes for the
- chips.
-
config MTD_XIP
bool "XIP aware MTD support"
- depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && ARM
+ depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && ARCH_MTD_XIP
default y if XIP_KERNEL
help
This allows MTD support to work with flash memory which is also
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff