linux-toradex.git/drivers/mtd/chips/Kconfig, branch v3.14.4

mtd: merge mtdchar module with mtdcore

2013-04-05T12:16:54+00:00

The MTD subsystem has historically tried to be as configurable as possible. The
side-effect of this is that its configuration menu is rather large, and we are
gradually shrinking it. For example, we recently merged partitions support with
the mtdcore.

This patch does the next step - it merges the mtdchar module to mtdcore. And in
this case this is not only about eliminating too fine-grained separation and
simplifying the configuration menu. This is also about eliminating seemingly
useless kernel module.

Indeed, mtdchar is a module that allows user-space making use of MTD devices
via /dev/mtd* character devices. If users do not enable it, they simply cannot
use MTD devices at all. They cannot read or write the flash contents. Is it a
sane and useful setup? I believe not. And everyone just enables mtdchar.

Having mtdchar separate is also a little bit harmful. People sometimes miss the
fact that they need to enable an additional configuration option to have
user-space MTD interfaces, and then they wonder why on earth the kernel does
not allow using the flash? They spend time asking around.

Thus, let's just get rid of this module and make it part of mtd core.

Note, mtdchar had additional configuration option to enable OTP interfaces,
which are present on some flashes. I removed that option as well - it saves a
really tiny amount space.

[dwmw2: Strictly speaking, you can mount file systems on MTD devices just
        fine without the mtdchar (or mtdblock) devices; you just can't do
        other manipulations directly on the underlying device. But still I
        agree that it makes sense to make this unconditional. And Yay! we
        get to kill off an instance of checking CONFIG_foo_MODULE, which is
        an abomination that should never happen.]

Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

drivers/mtd/chips: remove depends on CONFIG_EXPERIMENTAL

2013-01-11T19:38:07+00:00

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: David Woodhouse 
Signed-off-by: Kees Cook 
Acked-by: Artem Bityutskiy

mtd: chips: reorganize Kconfig help on swapping

2012-07-06T17:17:07+00:00

The Kconfig help on "Flash cmd/query data swapping" still mentions
LART_ENDIAN_BYTE. That option used to be relevant for setting
CONFIG_MTD_CFI_LART_BIT_SWAP. That option and macro got both removed in
v2.4.11-pre4. So, although LART endianness sounds intriguing, that part
of the help text can be removed.

And, while we're touching this choice, move the help text up one level.
Currently it's available under the "NO" option, while it's relevant for
all three options.

Signed-off-by: Paul Bolle 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

Fix common misspellings

2011-03-31T14:26:23+00:00

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi

Kconfig: Remove useless and sometimes wrong comments

2009-11-09T08:40:56+00:00

Additionally, some excessive newlines removed.

Signed-off-by: Michael Roth 
Signed-off-by: Jiri Kosina

[MTD] [NOR] Select MTD_CFI_UTIL when MTD_CFI probe routine is enabled

2008-09-01T11:23:22+00:00

It requires cfi_qry_mode_on(), which is in cfi_util.c

Reported by Russell King

Signed-off-by: David Woodhouse

[MTD] [NOR] Add "Spansion" to MTD_CFI_AMDSTD kconfig menu description

2008-08-06T08:41:35+00:00

This long overdue trivial change to the MTD_CFI_AMDSTD kconfig menu
description is intended to help clarify that this option also supports
Spansion flash devices.

Signed-off-by: George G. Davis 
Signed-off-by: David Woodhouse

[MTD] dataflash OTP support

2008-08-01T20:47:47+00:00

Now that we can tell when we have one of the newer DataFlash chips,
optionally expose the 128 bytes of OTP memory they provide.  Tested
on at45db642 revision B and D chips.

Switch mtdchar over to a generic HAVE_MTD_OTP flag instead of adding
another #ifdef for each type of chip whose driver has OTP support.

Signed-off-by: David Brownell 
Cc: Bryan Wu 
Cc: Michael Hennerich 
Signed-off-by: Andrew Morton 
Signed-off-by: David Woodhouse

[MTD] [CHIPS] Remove MTD_OBSOLETE_CHIPS (jedec, amd_flash, sharp)

2007-05-09T12:34:37+00:00

Signed-off-by: David Woodhouse

Use menuconfig objects: MTD

2007-04-19T21:21:41+00:00

Use menuconfigs instead of menus, so the whole menu can be disabled at once
instead of going through all options.

Signed-off-by: Jan Engelhardt 
Signed-off-by: Andrew Morton 
Signed-off-by: David Woodhouse