linux-toradex.git/include/mtd, branch v2.6.38.5

mtd: Define MLC Flash as a different flash type

2010-10-24T23:50:20+00:00

MLC NAND Flash has a different cell structure and differs in
functioning than the SLC NAND Flash. Hence we are considering it as
a different Flash type.

Signed-off-by: Rohit H.S 
Signed-off-by: Raghav Gupta 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: edit comments on deprecation of ioctl ECCGETLAYOUT

2010-10-24T22:37:27+00:00

There were some improvements and additions necessary in the
comments explaining of the expansion of nand_ecclayout, the
introduction of nand_ecclayout_user, and the deprecation of the
ioctl ECCGETLAYOUT.

Also, I found a better placement for the macro MTD_MAX_ECCPOS_ENTRIES;
next to the definition of MTD_MAX_OOBFREE_ENTRIES in mtd-abi.h. The macro
is really only important for the ioctl code (found in drivers/mtd/mtdchar.c)
but since there are small edits being made to the user-space header, I
figured this is a better location.

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

mtd: nand: expand nand_ecc_layout, deprecate ioctl ECCGETLAYOUT

2010-10-24T22:37:24+00:00

struct nand_ecclayout is too small for many new chips; OOB regions can be as
large as 448 bytes and may increase more in the future. Thus, copying that
struct to user-space with the ECCGETLAYOUT ioctl is not a good idea; the ioctl
would have to be updated every time there's a change to the current largest
size.

Instead, the old nand_ecclayout is renamed to nand_ecclayout_user and a
new struct nand_ecclayout is created that can accomodate larger sizes and
expand without affecting the user-space. struct nand_ecclayout can still
be used in board drivers without modification -- at least for now.

A new function is provided to convert from the new to the old in order to
allow the deprecated ioctl to continue to work with truncated data. Perhaps
the ioctl, the conversion process, and the struct nand_ecclayout_user can be
removed altogether in the future.

Note: There are comments in nand/davinci_nand.c::nand_davinci_probe()
regarding this issue; this driver (and maybe others) can be updated to
account for extra space. All kernel drivers can use the expanded
nand_ecclayout as a drop-in replacement and ignore its benefits.

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

mtd: Update copyright notices

2010-08-08T19:58:20+00:00

Signed-off-by: David Woodhouse

mtd: add an ioctl to query the lock status of a flash sector

2010-08-02T08:03:41+00:00

This patchs adds a way for user space programs to find out whether a
flash sector is locked. An optional driver method in the mtd_info struct
provides the information.

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

Kill jffs2-user.h

2009-06-05T16:31:38+00:00

This file does not define any kernel-userspace API, all
it does it defines few helpers for userspace. Instead,
userspace should have a private copy of this file.

The main (if not the only) user is the mtd-utils package, but
it already has a private copy of this file.

This patch also removes references to 'jffs2-user.h' from
'Kbuild' and MAINTAINERS' files.

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

mtd: add OOB ioctls for >4GiB devices

2009-05-29T14:27:07+00:00

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

mtd: add MEMERASE64 ioctl for >4GiB devices

2009-05-29T14:13:47+00:00

New MEMERASE/MEMREADOOB/MEMWRITEOOB ioctls are needed in order to support
64-bit offsets into large NAND flash devices.

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

make MTD headers use strict integer types

2009-03-26T17:14:17+00:00

The MTD headers traditionally use stdint types rather than
the kernel integer types. This converts them to do the
same as all the others.

Cc: David Woodhouse 
Signed-off-by: Arnd Bergmann 
Signed-off-by: H. Peter Anvin 
Signed-off-by: Ingo Molnar

make exported headers use strict posix types

2009-03-26T17:14:14+00:00

A number of standard posix types are used in exported headers, which
is not allowed if __STRICT_KERNEL_NAMES is defined. In order to
get rid of the non-__STRICT_KERNEL_NAMES part and to make sane headers
the default, we have to change them all to safe types.

There are also still some leftovers in reiserfs_fs.h, elfcore.h
and coda.h, but these files have not compiled in user space for
a long time.

This leaves out the various integer types ({u_,u,}int{8,16,32,64}_t),
which we take care of separately.

Signed-off-by: Arnd Bergmann 
Acked-by: Mauro Carvalho Chehab 
Cc: David Airlie 
Cc: Arnaldo Carvalho de Melo 
Cc: YOSHIFUJI Hideaki 
Cc: netdev@vger.kernel.org
Cc: linux-ppp@vger.kernel.org
Cc: Jaroslav Kysela 
Cc: Takashi Iwai 
Cc: David Woodhouse 
Signed-off-by: H. Peter Anvin 
Signed-off-by: Ingo Molnar