menu "RAM/ROM/Flash chip drivers"
- depends on MTD!=n
config MTD_CFI
tristate "Detect flash chips by Common Flash Interface (CFI) probe"
config MTD_GEN_PROBE
tristate
+if MTD_GEN_PROBE
+
config MTD_CFI_ADV_OPTIONS
bool "Flash chip driver advanced configuration options"
- depends on MTD_GEN_PROBE
help
If you need to specify a specific endianness for access to flash
chips, or if you wish to reduce the size of the kernel by including
If unsure, say 'N'.
+if MTD_CFI_ADV_OPTIONS
+
choice
prompt "Flash cmd/query data swapping"
- depends on MTD_CFI_ADV_OPTIONS
default MTD_CFI_NOSWAP
config MTD_CFI_NOSWAP
config MTD_CFI_GEOMETRY
bool "Specific CFI Flash geometry selection"
- depends on MTD_CFI_ADV_OPTIONS
help
This option does not affect the code directly, but will enable
some other configuration options which would allow you to reduce
arrangements of CFI chips. If unsure, say 'N' and all options
which are supported by the current code will be enabled.
+if MTD_CFI_GEOMETRY
+
config MTD_MAP_BANK_WIDTH_1
- bool "Support 8-bit buswidth" if MTD_CFI_GEOMETRY
+ bool "Support 8-bit buswidth"
default y
help
If you wish to support CFI devices on a physical bus which is
8 bits wide, say 'Y'.
config MTD_MAP_BANK_WIDTH_2
- bool "Support 16-bit buswidth" if MTD_CFI_GEOMETRY
+ bool "Support 16-bit buswidth"
default y
help
If you wish to support CFI devices on a physical bus which is
16 bits wide, say 'Y'.
config MTD_MAP_BANK_WIDTH_4
- bool "Support 32-bit buswidth" if MTD_CFI_GEOMETRY
+ bool "Support 32-bit buswidth"
default y
help
If you wish to support CFI devices on a physical bus which is
32 bits wide, say 'Y'.
config MTD_MAP_BANK_WIDTH_8
- bool "Support 64-bit buswidth" if MTD_CFI_GEOMETRY
- default n
+ bool "Support 64-bit buswidth"
help
If you wish to support CFI devices on a physical bus which is
64 bits wide, say 'Y'.
config MTD_MAP_BANK_WIDTH_16
- bool "Support 128-bit buswidth" if MTD_CFI_GEOMETRY
- default n
+ bool "Support 128-bit buswidth"
help
If you wish to support CFI devices on a physical bus which is
128 bits wide, say 'Y'.
config MTD_MAP_BANK_WIDTH_32
- bool "Support 256-bit buswidth" if MTD_CFI_GEOMETRY
- default n
+ bool "Support 256-bit buswidth"
help
If you wish to support CFI devices on a physical bus which is
256 bits wide, say 'Y'.
config MTD_CFI_I1
- bool "Support 1-chip flash interleave" if MTD_CFI_GEOMETRY
+ bool "Support 1-chip flash interleave"
default y
help
If your flash chips are not interleaved - i.e. you only have one
flash chip addressed by each bus cycle, then say 'Y'.
config MTD_CFI_I2
- bool "Support 2-chip flash interleave" if MTD_CFI_GEOMETRY
+ bool "Support 2-chip flash interleave"
default y
help
If your flash chips are interleaved in pairs - i.e. you have two
flash chips addressed by each bus cycle, then say 'Y'.
config MTD_CFI_I4
- bool "Support 4-chip flash interleave" if MTD_CFI_GEOMETRY
- default n
+ bool "Support 4-chip flash interleave"
help
If your flash chips are interleaved in fours - i.e. you have four
flash chips addressed by each bus cycle, then say 'Y'.
config MTD_CFI_I8
- bool "Support 8-chip flash interleave" if MTD_CFI_GEOMETRY
- default n
+ bool "Support 8-chip flash interleave"
help
If your flash chips are interleaved in eights - i.e. you have eight
flash chips addressed by each bus cycle, then say 'Y'.
+endif # MTD_CFI_GEOMETRY
+
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
"Protection Registers" present on some flash chips.
This feature should therefore be used with extreme care. Any mistake
in the programming of OTP bits will waste them.
+endif # MTD_CFI_ADV_OPTIONS
+
config MTD_CFI_INTELEXT
tristate "Support for Intel/Sharp flash chips"
- depends on MTD_GEN_PROBE
select MTD_CFI_UTIL
help
The Common Flash Interface defines a number of different command
config MTD_CFI_AMDSTD
tristate "Support for AMD/Fujitsu/Spansion flash chips"
- depends on MTD_GEN_PROBE
select MTD_CFI_UTIL
help
The Common Flash Interface defines a number of different command
config MTD_CFI_STAA
tristate "Support for ST (Advanced Architecture) flash chips"
- depends on MTD_GEN_PROBE
select MTD_CFI_UTIL
help
The Common Flash Interface defines a number of different command
sets which a CFI-compliant chip may claim to implement. This code
provides support for one of those command sets.
+endif # MTD_GEN_PROBE
+
config MTD_CFI_UTIL
tristate