This patch adds a new "page" parameter to all NAND read_page/read_page_raw
APIs. The read_page API for the new mode ECC_HW_OOB_FIRST requires the
page information to send the READOOB command and read the OOB area before
the data area.
Reviewed-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Remove the ARM dependency from the generic "onenand" platform device
driver. This change makes the driver useful for other architectures as
well. Needed for the SuperH kfr2r09 board.
Apart from the obvious Kconfig bits, the most important change is the move
away from ARM specific includes and platform data. Together with this
change the only in-tree board code gets an update, and the driver name is
also changed gracefully break potential out of tree drivers.
The driver is also updated to allow NULL as platform data together with a
few changes to make use of resource_size() and dev_name().
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kyungmin Park <kmpark@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
orion_nand_probe lives in .init.text, so using platform_driver_register to
register it is wrong because binding a device after the init memory is
discarded (e.g. via sysfs) results in an oops.
As requested by Nicolas Pitre platform_driver_probe is used instead of
moving the probe function to .devinit.text as proposed initially. This
saves some memory, but devices registered after the driver is probed are
not bound (probably there are none) and binding via sysfs isn't possible.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Lennert Buytenhek <buytenh@marvell.com>
Cc: Saeed Bishara <saeed@marvell.com>
Cc: Joern Engel <joern@logfs.org>
Acked-by: Nicolas Pitre <nico@marvell.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Add an omitted unlock to one sst25l_erase fail path.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Add support for the non JEDEC SST25L SPI Flash devices.
[dwmw2: Some cleanups]
Signed-off-by: Andre Renaud <andre@bluewatersys.com>
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: "H Hartley Sweeten" <hartleys@visionengravers.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Let attribute group vectors be declared "const". We'd
like to let most attribute metadata live in read-only
sections... this is a start.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Due to problems at cam.org, my nico@cam.org email address is no longer
valid. FRom now on, nico@fluxnic.net should be used instead.
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cleanin up after errors in init_msp_flash().
Also cleanup_msp_flash() attempts to determine the size of
msp_flash with `sizeof(msp_flash) / sizeof(struct mtd_info **)'
This will not work since msp_flash is not an array.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Make mtd_group and mtd_groups static since they are only used in this
file.
[Amended by Artem Bityutskiy]
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
All of the onenand drivers depend on mtd partition support being compiled
in, so just select it. Fixes up build breakage:
drivers/built-in.o: In function `generic_onenand_remove':
generic.c:(.devexit.text+0x80): undefined reference to `del_mtd_partitions'
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Check whether index is within bounds before testing the element.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This patch fixes a spelling error that has resulted from copy and
pasting. The location of the error was found using a semantic patch
but the semantic patch was not trying to find these errors. After
looking things over it seemed logical that this change was needed.
The patch also makes sure mtd_list is not being freed if it has not
been allocated
Signed-off-by: Stoyan Gaydarov <sgayda2@uiuc.edu>
Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Fix the misspelling to match the actual config variable defined in
drivers/mtd/devi ces/Kconfig:
config MTD_DATAFLASH_WRITE_VERIFY
bool "Verify DataFlash page writes"
depends on MTD_DATAFLASH
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/mtd/afs.c:244: warning: format ‘%5d’ expects type ‘int’, but argument 4 has type ‘uint64_t’
[dwmw2: fix incorrect 'KB' too]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
1. <linux/io.h> should be included not <asm/io.h>
2. add platform specific header <mach/ts72xx.h>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Correcting debug prints by removing function names from print messages
and using '__func__' macro instead.
Function names were wrong in few places.
Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Mika Korhonen <mika.j.korhonen@gmail.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Arithmetic conversion in the mask computation makes the upper word
of the second argument passed down to mtd->read_oob(), be always 0
(assuming 'offs' being a 64-bit signed long long type, and
'mtd->writesize' being a 32-bit unsigned int type).
This patch applies over the other one adding masking in nftl_write,
"nftl: write support is broken".
Signed-off-by: Dimitri Gorokhovik <dimitri.gorokhovik@free.fr>
Cc: Tim Gardner <tim.gardner@canonical.com>
Cc: Scott James Remnant <scott@canonical.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Write support is broken in NFTL. Fix it.
Signed-off-by: <dimitri.gorokhovik@free.fr>
Cc: Tim Gardner <tim.gardner@canonical.com>
Cc: Scott James Remnant <scott@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
GCC 4.3.3 and 4.4.1 happily moves the dword load instruction out of the
loop in orion_nand_read_buf. This patch makes the instruction volatile
to avoid the issue. I've discussed this at gcc-help, refer to the thread
at
http://gcc.gnu.org/ml/gcc-help/2009-08/msg00187.html
The early clobber is added to avoid the destination registers and the
source register overlapping.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
More testing of NOR flash against power cuts showed that sometimes
eraseblocks may be unwritable, and we cannot really invalidate
them before erasure. But in this case the eraseblock probably
contains garbage anyway, and we do not have to invalidate the
headers. This assumption might be not true, but this is at least
what I have observed. So if we cannot invalidate the headers,
we make sure that the PEB does not contain valid VID header.
If this is true, everything is fine, otherwise we panic.
Useful for debugging problems, compiled in only if UBI debugging
is enabled. This patch also makes the UBI writing function dump
the flash if it fails to write.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
The assignment to pos when rb is finally NULL is undefined behaviour.
Upon seeing that assignment, GCC may assume that rb is not NULL, and
the loop condition ``rb'' may be optimised away.
Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
There was a bug report recently where UBI prints:
UBI error: ubi_attach_mtd_dev: failed to attach by scanning, error -22
error messages and refuses to attach a PEB. It turned out to be a
buggy flash driver which returned garbage to almost every UBI read.
This patch makes UBI print a better message in such cases. Namely,
if UBI finds 8 or more corrupted PEBs, it prints a warning and
lists the corrupted PEBs.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
In case of NOR flash, UBI zeroes EC and VID headers' magic,
in order to detect interrupted erasures. It first zeroes out
the EC magic, then VID magic. However, if a power cut happens
in between, we'll end up with a corrupted EC header and a valid
VID header, in which case UBI accepts the PEB, but prints a
warning. This patch makes sure we first zero out the VID
magic, then the EC magic, not vice versa. This is just a
small amendment to prevent warning messages.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
If the EC header is corrupted, but the VID header is OK, UBI accepts the
PEB and treats it as "used". However, generally this should not happen.
Print a warning if this happens.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
The mtdblks array and its content are prone to race conditions. Introduce
the mutex mtdblks_lock in order to solve this.
[Amended by Artem Bityutskiy]
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This driver is causing build errors and is no longer needed -- it is obsoleted
by physmap_of.
Signed-off-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Tested-on-PPC64-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
GPMC CS was not freed in omap2_onenand_remove() preventing the module
from reloading after removal.
Signed-off-by: Mika Korhonen <ext-mika.2.korhonen@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Fixes the case where CONFIG_MTD_ONENAND_2X_PROGRAM is set and
the real page size differs from mtd_info.writesize.
Signed-off-by: Mika Korhonen <mika.j.korhonen@gmail.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Nowadays MTD devices have to be "get" before they can be
used. This has to be done with 'get_mtd_device()'. The
'blktrans_open()' function did not do this and instead
used 'try_module_get()'. Fix this.
Since 'get_mtd_device()' already gets the module, extra
'try_module_get()' is not needed.
This fixes oops when one tries to use mtdblock on top of
gluebi.
Reported-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The patch fixes a bug when converting dev to mtd_info by using the
drvdata of the dev, the previous code used
container_of(dev, struct mtd_info, dev), but won't work for the mtdXro
devices as they created without being contained inside mtd_info structure.
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Fall back onto thinking everything's OK if either of the sequence
numbers we are asked to compare is zero, which is what was used
before sequence numbers were introduced.
[ Artem: modified the patch to be applicable to upstream UBI, added
big comment ]
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
If we fail in 'ubi_eba_init_scan()', we free
'ubi->volumes[i]->eba_tbl' in there, but also later free it
in 'free_internal_volumes()'. Fix this by assigning NULL
to 'ubi->volumes[i]->eba_tbl' after it is freed.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This patch fixes a bug in the image seq. number handling in the
scanning level. The assignment of the image_seq was incorrect.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Do not forget to initialize 'gluebi->ubi_num' because otherwise
it will stay 0 even for ubi1 device, and gluebi will open
wrong UBI device when 'gluebi_get_device()' is called.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
arch/arm/mach-ep93xx/include/mach/hardware.h
1. Properly name the include files so that they are loaded
from the <mach/*> directory and not the local directory.
2. Remove including the ts72xx.h header. This header is not
generic to the ep93xx platform. It should only be included
by the ts72xx specific files that require it. The only
two users in the tree are arch/arm/mach-ep93xx/ts72xx.c
and drivers/mtd/nand/ts7250.c.
arch/arm/mach-ep93xx/include/mach/ts72xx.h
1. <linux/io.h> should already be included by any user of this
header. Doing the include here hides it from being needed
by the calling source file.
arch/arm/mach-ep93xx/core.c
1. Remove unnecessary headers. They were probably included
originally due to cut-and-paste from other files.
2. <linux/io.h> should be included not <mach/gpio.h>
arch/arm/mach-ep93xx/adsphere.c
arch/arm/mach-ep93xx/edb93xx.c
arch/arm/mach-ep93xx/gesbc9312.c
arch/arm/mach-ep93xx/micro9.c
arch/arm/mach-ep93xx/ts72xx.c
1. Remove unnecessary headers.
arch/arm/mach-ep93xx/ts72xx.c
1. Remove unnecessary headers.
2. Add platform specific header <mach/ts72xx.h>.
drivers/mtd/nand/ts7250.c
1. <linux/io.h> should be included not <asm/io.h>.
2. Add platform specific header <mach/ts72xx.h>.
Cc: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The recent "UBI: fix NOR flash recovery" introduced compilation
warnings which were immediately spotted by our linux-next keeper.
This patch fixes them.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit fixes NOR flash recovery issues observed with Spansion
S29GL512N NOR.
When NOR erases, it first fills PEBs with zeroes, then sets all bytes
to 0xFF. Filling with zeroes starts from the end of the PEB. And when
power is cut, this results in PEBs containing correct EC and VID headers
but corrupted with zeros at the end. This confuses UBI and it mistakinly
accepts these PEBs and associate them with LEBs.
Fis this issue by zeroing EC and VID magics before erasing PEBs, to
make UBI later refuse zem.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Move the image seq. number handling from I/O level to the scanning
lever, where it really belongs to. Move the @image_seq_set variable
to the @struct ubi_scan_info structure, which exists only during
scanning.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Sneha Narnakaje