Commit graph

950 commits

Author SHA1 Message Date
Mariusz Kozlowski
4fb4caa639 [MTD] pmcmsp-flash.c: kmalloc + memset conversion to k[cz]alloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-01 11:03:35 +01:00
Mariusz Kozlowski
d67d1d7fc3 [MTD] drivers/mtd/inftlmount.c: kmalloc + memset conversion to kcalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-01 11:02:40 +01:00
Mariusz Kozlowski
8f0f23f97a [MTD] remove redundant/dead code from physmap_of.c
This patch removes redundant memset() and dead return line from
of_physmap_probe(). No functional change.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-01 10:59:43 +01:00
Ralf Baechle
0b0ef2ea00 [MIPS] Remove Momentum Ocelot support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:29 +01:00
Al Viro
e0e5de00b0 sun userflash is PCI-dependent
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26 11:11:56 -07:00
Artem Bityutskiy
c0b8ba7bfe [MTD] [NAND] fix race in nand_base.c
When we mark block bad we have to get chip because this involves
writing to the page's OOB. We hit this bug in UBI - we observed
random obscure crashes when it marks block bad from the background
thread and there is some parallel task which utilizes flash.

This patch also adds a TODO note about BBT table protection which
it seems does not exist.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 13:09:52 +01:00
David Woodhouse
0bf9733d0d [MTD] Fix do_div() type warning in mtdconcat
It expects a uint64_t; give it one.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 13:07:06 +01:00
Robert P. J. Day
e733450b67 [MTD] Remove useless references to MIPS_HYDROGEN3 and MIPS_MIRAGE_WHY.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 12:50:51 +01:00
Roland Stigge
4a32cfa0f5 [MTD] [NAND] Fix refactoring of EDB7312 hwcontrol function.
The patch ensures that the current code (kernel 2.6.22) uses the bits 
like the code prior to the refactoring. The variable "bits" is employed 
in a useful way now.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 12:49:13 +01:00
akpm@linux-foundation.org
030f9e13be [MTD] Remove embedded return in RFD FTL.
embedded returns are evil.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 12:06:52 +01:00
Florin Malita
1050643431 [MTD] Fix potential leak in rfd_ftl_add_mtd
This fixes a leak in the !mtd->erasesize error path (Coverity 1765).

Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 12:05:07 +01:00
Jesper Juhl
4cfff0db3a [MTD] Clean up duplicate includes in drivers/mtd/
This patch cleans up duplicate includes in
	drivers/mtd/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 11:56:27 +01:00
Steven J. Hill
30eb0db07d [MTD] [NAND] Add NAND manufacturer AMD.
This patch adds the manufacturer ID for AMD flash.

Signed-off-by: Steven J. Hill <sjhill1@rockwellcollins.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23 11:51:53 +01:00
David Woodhouse
39fe5434cb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-07-23 10:20:10 +01:00
Paul Mundt
20c2df83d2 mm: Remove slab destructors from kmem_cache_create().
Slab destructors were no longer supported after Christoph's
c59def9f22 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20 10:11:58 +09:00
Paul Mundt
add0b43ca6 UBI: fix compile warning
cdev.c whines in current git:

drivers/mtd/ubi/cdev.c: In function `major_to_device':
drivers/mtd/ubi/cdev.c:67: warning: control reaches end of non-void function

Shut it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:59:17 +03:00
Artem Bityutskiy
784c145444 UBI: fix error handling in erase worker
Do not switch to read-only mode in case of -EINTR and some
other obvious cases. Switch to RO mode only when we do not
know what is the error.

Reported-by: Vinit Agnihotri <vinit.agnihotri@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:59:09 +03:00
Artem Bityutskiy
63b6c1ed56 UBI: fix comments
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:59:01 +03:00
Artem Bityutskiy
503990ebb2 UBI: remove unneeded error checks
Pointed to by viro.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:58:53 +03:00
Fernando Luis Vázquez Cao
2db61c95c0 UBI: cleanup usage of try_module_get
The use of try_module_get(THIS_MODULE) in ubi_get_device_info does not
offer real protection against unexpected driver unloads, since we could
be preempted before try_modules_get gets executed. It is the caller who
should manipulate the refcounts. Besides, ubi_get_device_info is an
exported symbol which guarantees protection when accessed through
symbol_get.

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:58:45 +03:00
Vinit Agnihotri
d08c3b78b8 UBI: fix overflow bug
I was experiencing overflows in multiplications for
volume->used_bytes in vmt.c & vtbl.c, while creating & resizing large volumes.

vol->used_bytes is long long however its 2 operands vol->used_ebs &
vol->usable_leb_size
are int. So their multiplication for larger values causes integer overflows.
Typecasting them solves the problem.

My machine & flash details:

64Bit dual-core AMD opteron, 1 GB RAM, linux 2.6.18.3.
mtd size = 6GB, volume size= 5GB, peb_size = 4MB.

heres patch which does the fix.

Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:58:12 +03:00
Artem Bityutskiy
2f3cdb55ee UBI: bugfix in max_sqnum calculation
Do not zero max_sqnum after a new volume has been found.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:58:02 +03:00
Brijesh Singh
76eafe479e UBI: bugfix in sqnum calculation
Hi,I came across problem of having two leb with same sequence no.This
happens when we continuously write one block again and again and reboot
machine before background thread erases those blocks.
The problem here was,when we find two blocks with same sequence no,we take
the higher one,but we were not updating max seq no,so next block may have
the same seqnum.
This patch solves this problem.

Signed-off-by: Brijesh Singh <brijesh.s.singh@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:57:52 +03:00
Brijesh Singh
2f176f7987 UBI: fix signed-unsigned multiplication
There is signed multiplication assigned to unsigned ei.addr in io.c.
This causes wrong addresses for big multiplication.This patch solves the
problem.

Signed-off-by: Brijesh Singh <brijesh.s.singh@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:57:34 +03:00
Artem Bityutskiy
84a9258062 UBI: fix bug in atomic_leb_change()
atomic_leb_change() is only allowed for dynamic volumes, so set
the volume type correctly.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:56:24 +03:00
Vinit Agnihotri
a6ded48e34 UBI: fix message
Increase UBI devices couter after the message, not before.

Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:56:13 +03:00
Artem Bityutskiy
b89044bfa0 UBI: fix debugging stuff
Do not check volumes which are currently in use because thay may be
in inconsistent state.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:56:05 +03:00
Artem Bityutskiy
94784d9164 UBI: bugfix in error path
When volume creation fails, we have to set ubi->volumes[vol_id]
back to NULL.

This patch also tweaks some debugging stuff.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:55:55 +03:00
Vignesh Babu
7753f1692f UBI: use is_power_of_2()
Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2

Signed-off-by: Vignesh Babu <vignesh.babu@wipro.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:55:26 +03:00
Vinit Agnihotri
d7f0c4dc31 UBI: fix freeing ubi->vtbl while unloading
ubi->vtbl is allocated using vmalloc() in vtbl.c empty_create_lvol(),
but it is freed in build.c with kfree()

Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:54:15 +03:00
Artem Bityutskiy
a443db48e0 UBI: bugfix in ubi_leb_change()
Do not call 'ubi_wl_put_peb()' if the LEB was unmapped.

Reported-by: Gabor Loki <loki@inf.u-szeged.hu>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:57 +03:00
Christoph Hellwig
3261ebd7d4 UBI: kill homegrown endian macros
Kill UBI's homegrown endianess handling and replace it with
the standard kernel endianess handling.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:49 +03:00
Christoph Hellwig
bf07803a68 UBI: cleanup ioctl handling
- don't do access_ok + get/put user but use the proper macro
- remove useless checks

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:36 +03:00
Artem Bityutskiy
16d8cd7ce4 UBI: error path bugfix
No need to unlock the lock, this will be done at out_unlock.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:27 +03:00
Artem Bityutskiy
f800f09bf4 UBI: minor comma fix
Use coma at the the last elements of structure initializer.

Daniel Stone's explanation:

Because it turns:
-   .attr   = foo
+   .attr   = foo,
+   .bar    = baz

into:
+   .bar    = baz,

i.e., far less likely to screw up a merge.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:17 +03:00
Artem Bityutskiy
92ad8f3750 UBI: use vmalloc for large buffers
UBI allocates temporary buffers of PEB size, which may be 256KiB.
Use vmalloc instead of kmalloc for such big temporary buffers.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:08 +03:00
Artem Bityutskiy
79b510c0f2 UBI: add few more comments
Add few comments above ubi_scan_add_used() to explain why it is so
complex. Requested by Satyam Sharma <satyam.sharma@gmail.com>.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:53:00 +03:00
Artem Bityutskiy
941dfb07ed UBI: set correct gluebi device size
In case of static volumes, make emulated MTD device size to
be equivalent to data size, rather then volume size.

Reported-by: John Smith <john@arrows.demon.co.uk>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:52:51 +03:00
Artem Bityutskiy
4ab60a0d7c UBI: do not let to read too much
In case of static volumes it is prohibited to read more data
then available.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:52:42 +03:00
Artem Bityutskiy
78d87c95b8 UBI: fix error path in create_vtbl()
There were several bugs in volume table creation error path. Thanks to
Satyam Sharma <satyam.sharma@gmail.com> and Florin Malita <fmalita@gmail.com>
for finding and analysing them: http://lkml.org/lkml/2007/5/3/274

This patch makes ubi_scan_add_to_list() static and renames it to
add_to_list(), just because it is not needed outside scan.c anymore.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:52:32 +03:00
Florin Malita
c4e90ec013 UBI: fix dereference after kfree
Coverity (CID 1614) spotted new_seb being dereferenced after kfree() in
create_vtbl's write_error path.

Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:52:22 +03:00
Artem Bityutskiy
341e1a0cf2 UBI: fix memory leak in checking code
Reported-by: Eric Sesterhenn / Snakebyte <snakebyte@gmx.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-07-18 16:52:13 +03:00
Jeff Garzik
a6343afb6e drivers/*: mark variables with uninitialized_var()
Mark variables in drivers/* with uninitialized_var() if such a warning
appears, and analysis proves that the var is initialized properly on all
paths it is used.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-17 16:23:19 -04:00
Jeff Garzik
2ab934b8af drivers/mtd/ubi/eba: minor cleanup: tighten scope of a local var
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-17 16:18:00 -04:00
Rafael J. Wysocki
8314418629 Freezer: make kernel threads nonfreezable by default
Currently, the freezer treats all tasks as freezable, except for the kernel
threads that explicitly set the PF_NOFREEZE flag for themselves.  This
approach is problematic, since it requires every kernel thread to either
set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
care for the freezing of tasks at all.

It seems better to only require the kernel threads that want to or need to
be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which is
done in this patch.

The patch causes all kernel threads to be nonfreezable by default (ie.  to
have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order to
unset PF_NOFREEZE.  It also makes all of the currently freezable kernel
threads call set_freezable(), so it shouldn't cause any (intentional)
change of behaviour to appear.  Additionally, it updates documentation to
describe the freezing of tasks more accurately.

[akpm@linux-foundation.org: build fixes]
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
Richard Purdie
8691a729a2 [MTD] Add sync/unblank function to mtdoops
mtdoops wasn't ensuring data was flushed to flash in crash situations
after recent changes in mainline kernels as tracking the
oops_in_progress variable was no longer enough. We can use the "unblank"
console call as a sync call to tell us to write out the buffer though.

Therefore add a sync function to mtdoops and call this when console
unblank events occur.

Signed-off-by: Richard Purdie <rpurdie@openedhand.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-11 14:57:17 +01:00
Yoichi Yuasa
a2e96b627b [MTD] Remove Ocelot G support from DiskOnChip drivers.
This patch has removed Ocelot G support from MTD.
Ocelot G support has already removed since May 2007.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-11 14:56:54 +01:00
David Woodhouse
db1b39d8b8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-07-11 14:55:48 +01:00
Yoichi Yuasa
c99cabf034 [MIPS] remove LASAT Networks platforms support
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-10 17:33:04 +01:00
Franck Bui-Huu
192cca6ef2 [MIPS] Remove Momenco Ocelot C support
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 delete mode 100644 arch/mips/configs/ocelot_c_defconfig
 delete mode 100644 arch/mips/momentum/ocelot_c/Makefile
 delete mode 100644 arch/mips/momentum/ocelot_c/cpci-irq.c
 delete mode 100644 arch/mips/momentum/ocelot_c/dbg_io.c
 delete mode 100644 arch/mips/momentum/ocelot_c/irq.c
 delete mode 100644 arch/mips/momentum/ocelot_c/ocelot_c_fpga.h
 delete mode 100644 arch/mips/momentum/ocelot_c/platform.c
 delete mode 100644 arch/mips/momentum/ocelot_c/prom.c
 delete mode 100644 arch/mips/momentum/ocelot_c/reset.c
 delete mode 100644 arch/mips/momentum/ocelot_c/setup.c
 delete mode 100644 arch/mips/momentum/ocelot_c/uart-irq.c
 delete mode 100644 arch/mips/pci/fixup-ocelot-c.c
 delete mode 100644 arch/mips/pci/pci-ocelot-c.c
2007-07-10 17:33:01 +01:00
David Woodhouse
16adce7b6f [MTD] [ONENAND] Make onenand_sim compile on non-ARM platforms.
The whole point of a sim is that it should run almost anywhere.
Gratuitously depending on '#define SZ_128K 131072' from an ARM-specific
header isn't really a good idea.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-10 09:08:26 +01:00
Philippe De Muyter
c9856e39e0 [MTD] [NOR] add FUJITSU MBM29F800BA and ST M29F800AB descriptions
Add descriptions for Fujitsu MBM29F800BA and ST M29F800AB flash chips.
Those chips are compatible (except for the ids) with the AMD AM29F800BB.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-05 23:29:49 -04:00
Jesper Juhl
8f1a866fc6 [MTD] [CHIPS] fix tiny spelling error in comment in cfi_cmdset_0001.c
Trivial fix of a spelling error in a comment in cfi_cmdset_0001.c
s/ships/chips/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-04 20:24:11 -04:00
Kyungmin Park
8dab169b8b [MTD] OneNAND Simulator support
This simulate various OneNAND flash chips for the MTD onenand layer.
It's simple implementation, only basic operations.
It don't support the recent changes in NANDSIM such as lazy block allocation,
bitflip, and so on.

Note: This passed nand-tests.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-30 08:25:45 +01:00
Kyungmin Park
ee9745fcf2 [MTD] [OneNAND] 2X program support
The 2X Program is an extension of Program Operation.

Since the device is equipped with two DataRAMs, and two-plane NAND Flash 
memory array, these two component enables simultaneous program of 4KiB.
Plane1 has only even blocks such as block0, block2, block4 while Plane2 
has only odd blocks such as block1, block3, block5.
So MTD regards it as 4KiB page size and 256KiB block size

Now the following chips support it. (KFXXX16Q2M)
Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,
Mux:   KFM2G16Q2M, KFN4G16Q2M,

And more recent chips

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-30 08:24:57 +01:00
Adrian Bunk
a97145c224 [MTD] remove dead MTD_PMC551_APERTURE_SIZE option
The CONFIG_MTD_PMC551_APERTURE_SIZE option seems to never have existed,
so there's no reason for carrying an #ifdef for it.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-29 14:18:43 +01:00
David Woodhouse
8e0aedc5bc [MTD] Use proper binary multiple prefixes in pmc551 driver
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-29 14:18:22 +01:00
Adrian Bunk
8f46c527ac [MTD] [NAND] cafe_nand.c: the OLPC laptop is not available for $100
The price might drop to $100 in a few years.

But currently, a more reasonable name might be "$175 laptop".

Let's simply call it "OLPC laptop" without any price tag.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-29 14:04:51 +01:00
Adrian Bunk
663d77a7cc [MTD] [MAPS] Cleanup nettel map driver
- make 2 needlessly global functions static
- remove the unused nettel_eraseconfig()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 23:02:59 +01:00
Randy Dunlap
1da1caf8d8 [MTD] [NOR] Use NULL instead of 0 for pointer to shut sparse up.
Use NULL instead of 0 for pointer:
drivers/mtd/chips/cfi_cmdset_0001.c:2258:43: warning: Using plain integer as NULL pointer

Other changes by inspection.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 23:00:09 +01:00
Matthias Kaehlcke
ec9ce52ef8 [MTD] Use mutex instead of semaphore in dataflash driver
The MTD DataFlash driver uses a semaphore as mutex.  Use the mutex API instead
of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 22:58:42 +01:00
David Woodhouse
02d087dbc8 [MTD] m25p80: Use correct units for binary multiples
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 22:38:38 +01:00
David Brownell
fa0a8c71f3 [MTD] m25p80 handles more chips, uses JEDEC ids and small eraseblocks
Update chip ID tables in m25p80 to handle more SPI flash chips, matching
datasheets.  All of these can use the same core operations and are newer
chips that support the JEDEC "read id" instruction:

 - Atmel AT25 and AT26 (seven chips)
 - Spansion S25SL (five chips)
 - SST 25VF (four chips)
 - ST M25, M45 (five more chips)
 - Winbond W25X series (seven chips)

That JEDEC instruction is now used, either to support a sanity check on the
platform data holding board configuration data, or to determine chip type
when it's not included in platform data.  In fact, boards that don't need a
standard partition table may not need that platform data any more.

For chips that support 4KiB erase units, use that smaller block size instead
of the larger size (usually 64KiB); it's less wasteful.  (Tested on W25X80.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 22:37:36 +01:00
David Brownell
7d5230ea39 [MTD] m25p80 converted to mutex
Convert semaphore usage in m25p80 driver to mutex; mention another kind of
SPI flash chip that should be able to use this driver (given minor tweaks).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 22:34:32 +01:00
Stefan Roese
02d9291874 [MTD] [NAND] Change NDFC driver to support 405 platforms too
This patch adds 405 platform support to the 440 NDFC driver. The new
AMCC 405EZ PPC is equipped with the same NDFC core as the 440EP(x)
and other will follow soon.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:33:04 +01:00
Ben Dooks
356d70f19d [MTD] mtdcore.c: share syms with mtd_blkdev.c
Fix the sparse warnings generated by the implicit
dependency of mtd_blkdevs.c and mtd_core.c for the
two symbols mtd_table and mtd_table_mutex. This is
done by adding an local header file mtdcore.h to
define these (including the warning about the
non-proliferation of these symbols).

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:24:50 +01:00
Ben Dooks
029a9eb1f6 [MTD] [NOR] cfi_cmdset_0001.c: sparse fixes
Fix sparse warnings generated from cfi_cmdset_0001.c.

drivers/mtd/chips/cfi_cmdset_0001.c:1783:5: warning: symbol 'cfi_intelext_erase_varsize' was not declared. Should it be static?
drivers/mtd/chips/cfi_cmdset_0001.c:2258:43: warning: Using plain integer as NULL pointer

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:24:31 +01:00
Ben Dooks
ce0f33adec [MTD] [NOR] cfi_cmdset_0002.c: fix 'cfi_amdstd_erase_varsize' to be static
Make cfi_amdstd_erase_varsize static, as declared at the top
of the file to ensure sparse does not print a warning for an
undeclared function, as so:

drivers/mtd/chips/cfi_cmdset_0002.c:1612:5: warning: symbol 'cfi_amdstd_erase_varsize' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:24:19 +01:00
Ben Dooks
8f026f75ac [MTD] mtd_blkdevs.c: do not export 'mtd_blktrans_ops'
The mtd_blktrans_ops is not defined in any of the headers
and is indeed not used elsewhere in the kernel, so mark it
as static to reduce the warnings from sparse

drivers/mtd/mtd_blkdevs.c:204:32: warning: symbol 'mtd_blktrans_ops' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:24:06 +01:00
Ben Dooks
8b099a390d [MTD] [NAND] nand_base.c: fix type of eccpos pointer
The nand_base.c driver implicitly casts the uint32_t
eccpos array to 'int *', which is not only not guaranteed
to be the same sign as the source, but is not guaranteed
to be the same size.

Fix by changing nand_base.c to use uint32_t
referencing the eccpos fields.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:23:40 +01:00
Richard Purdie
4b23aff083 [MTD] oops and panic message logging to MTD device
Kernel oops and panic messages are invaluable when debugging crashes.
These messages often don't make it to flash based logging methods (say a
syslog on jffs2) due to the overheads involved in writing to flash.

This patch allows you to turn an MTD partition into a circular log
buffer where kernel oops and panic messages are written to. The messages
are obtained by registering a console driver and checking
oops_in_progress. Erases are performed in advance to maximise the
chances of a saving messages.

To activate it, add console=ttyMTDx to the kernel commandline (where x
is the mtd device number to use).

Signed-off-by: Richard Purdie <rpurdie@openedhand.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:18:02 +01:00
Ivan Kuten
1100b47ea5 [MTD] [NAND] at91_nand rdy_pin fix
The patch below fixes nand driver for AT91 boards which do not have NAND
R/B signal connected to gpio (rdy_pin is not connected).

Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:15:13 +01:00
David Woodhouse
4854b75c77 [MTD] Remove references to ROOT_DEV from map drivers.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 20:13:27 +01:00
Joakim Tjernlund
7eafaed55f [MTD] Only call mtd->sync() method in mtdchar close if opened for write.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28 18:40:32 +01:00
Linus Torvalds
ec4883b015 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [JFFS2] Fix obsoletion of metadata nodes in jffs2_add_tn_to_tree()
  [MTD] Fix error checking after get_mtd_device() in get_sb_mtd functions
  [JFFS2] Fix buffer length calculations in jffs2_get_inode_nodes()
  [JFFS2] Fix potential memory leak of dead xattrs on unmount.
  [JFFS2] Fix BUG() caused by failing to discard xattrs on deleted files.
  [MTD] generalise the handling of MTD-specific superblocks
  [MTD] [MAPS] don't force uclinux mtd map to be root dev
2007-06-04 17:54:09 -07:00
David Woodhouse
718ea8361b [MTD] Fix error checking after get_mtd_device() in get_sb_mtd functions
It returns ERR_PTR(foo) on error, not just NULL.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-01 19:21:59 +01:00
Yoann Padioleau
f834368564 parse errors in ifdefs
Fix various bits of obviously-busted code which we're not happening to
compile, due to ifdefs.

Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Jan Kara <jack@ucw.cz>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:28 -07:00
Yoann Padioleau
632155e659 potential parse error in ifdef
I have made a tool to parse the kernel that does not pre-process the
source.  That means that my parser tries to parse all the code, including
code in the #else branch or code that is not often compiled because the
driver is not very used (or not used at all).  So, my parser sometimes
reports parse error not originally detected by gcc.  Here is my (first)
patch.

[akpm@linux-foundation.org: fix amd8111e.c]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: James Bottomley <James.Bottomley@steeleye.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:27 -07:00
Christoph Lameter
a35afb830f Remove SLAB_CTOR_CONSTRUCTOR
SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Anton Altaparmakov <aia21@cantab.net>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@ucw.cz>
Cc: David Chinner <dgc@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-17 05:23:04 -07:00
David Howells
acaebfd8a7 [MTD] generalise the handling of MTD-specific superblocks
Generalise the handling of MTD-specific superblocks so that JFFS2 and ROMFS
can both share it.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-11 12:14:15 +01:00
Mike Frysinger
33672f72b2 [MTD] [MAPS] don't force uclinux mtd map to be root dev
The cheesy uclinux mtd maps can be used for more than just the root device, so
I think we should drop the forcing.

Also, I feel like this is a policy decision that shouldnt be in the kernel in
the first place.  People who have been lazy and boot with uclinux mtd maps and
dont put root= into their commandline can simply add the appropriate root=
line either into their bootloader or into the compiled in bootargs.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-11 11:48:15 +01:00
Martin Schwidefsky
e25df1205f [S390] Kconfig: menus with depends on HAS_IOMEM.
Add "depends on HAS_IOMEM" to a number of menus to make them
disappear for s390 which does not have I/O memory.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10 15:46:07 +02:00
Linus Torvalds
ba7cc09c9c Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (21 commits)
  [MTD] [CHIPS] Remove MTD_OBSOLETE_CHIPS (jedec, amd_flash, sharp)
  [MTD] Delete allegedly obsolete "bank_size" field of mtd_info.
  [MTD] Remove unnecessary user space check from mtd.h.
  [MTD] [MAPS] Remove flash maps for no longer supported 405LP boards
  [MTD] [MAPS] Fix missing printk() parameter in physmap_of.c MTD driver
  [MTD] [NAND] platform NAND driver: add driver
  [MTD] [NAND] platform NAND driver: update header
  [JFFS2] Simplify and clean up jffs2_add_tn_to_tree() some more.
  [JFFS2] Remove another bogus optimisation in jffs2_add_tn_to_tree()
  [JFFS2] Remove broken insert_point optimisation in jffs2_add_tn_to_tree()
  [JFFS2] Remember to calculate overlap on nodes which replace older nodes
  [JFFS2] Don't advance c->wbuf_ofs to next eraseblock after wbuf flush
  [MTD] [NAND] at91_nand.c: CMDLINE_PARTS support
  [MTD] [NAND] Tidy up handling of page number in nand_block_bad()
  [MTD] block2mtd_paramline[] mustn't be __initdata
  [MTD] [NAND] Support multiple chips in CAFÉ driver
  [MTD] [NAND] Rename cafe.c to cafe_nand.c and remove the multi-obj magic
  [MTD] [NAND] Use rslib for CAFÉ ECC
  [RSLIB] Support non-canonical GF representations
  [JFFS2] Remove dead file histo_mips.h
  ...
2007-05-09 13:10:11 -07:00
David Woodhouse
b7aa48be1e [MTD] [CHIPS] Remove MTD_OBSOLETE_CHIPS (jedec, amd_flash, sharp)
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-09 13:34:37 +01:00
Robert P. J. Day
42f209d3c9 [MTD] Delete allegedly obsolete "bank_size" field of mtd_info.
Delete the allegedly obsolete "bank_size" member of struct mtd_info.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-09 13:26:52 +01:00
David Gibson
025257c7a7 [MTD] [MAPS] Remove flash maps for no longer supported 405LP boards
drivers/mtd/maps includes flash maps for the Beech and Arctic PowerPC
405LP based boards.  However, the 405LP was discontinued before any
quantity were distributed and those boards no longer have kernel
support in general.  Therefore, this patch removes this obsolete code.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-09 09:43:02 +01:00
David Gibson
2d0fa586fa [MTD] [MAPS] Fix missing printk() parameter in physmap_of.c MTD driver
Squashes a compiler warning, and provides more useful information in
the case messed up device tree information.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-09 09:38:48 +01:00
Matt LaPlante
a982ac06b0 misc doc and kconfig typos
Fix various typos in kernel docs and Kconfigs, 2.6.21-rc4.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 08:58:15 +02:00
Michael Opdenacker
59c51591a0 Fix occurrences of "the the "
Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 08:57:56 +02:00
Linus Torvalds
df6d3916f3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (77 commits)
  [POWERPC] Abolish powerpc_flash_init()
  [POWERPC] Early serial debug support for PPC44x
  [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc
  [POWERPC] Add device tree for Ebony
  [POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now
  [POWERPC] MPIC U3/U4 MSI backend
  [POWERPC] MPIC MSI allocator
  [POWERPC] Enable MSI mappings for MPIC
  [POWERPC] Tell Phyp we support MSI
  [POWERPC] RTAS MSI implementation
  [POWERPC] PowerPC MSI infrastructure
  [POWERPC] Rip out the existing powerpc msi stubs
  [POWERPC] Remove use of 4level-fixup.h for ppc32
  [POWERPC] Add powerpc PCI-E reset API implementation
  [POWERPC] Holly bootwrapper
  [POWERPC] Holly DTS
  [POWERPC] Holly defconfig
  [POWERPC] Add support for 750CL Holly board
  [POWERPC] Generalize tsi108 PCI setup
  [POWERPC] Generalize tsi108 PHY types
  ...

Fixed conflict in include/asm-powerpc/kdebug.h manually

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:50:19 -07:00
Jean Delvare
b3561ea946 Clean up mutex_trylock noise
Ingo Molnar's semaphore to mutex conversions left some noise on a few
trylock calls. Clean it up.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:13 -07:00
Paul Mackerras
02bbc0f09c Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
Vitaly Wool
711fdf627c [MTD] [NAND] platform NAND driver: add driver
This patch adds support for generic platform NAND driver.
Updated after tglx's review/discussion in IRC #mtd channel.

Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-08 00:41:55 +01:00
Christoph Lameter
50953fe9e0 slab allocators: Remove SLAB_DEBUG_INITIAL flag
I have never seen a use of SLAB_DEBUG_INITIAL.  It is only supported by
SLAB.

I think its purpose was to have a callback after an object has been freed
to verify that the state is the constructor state again?  The callback is
performed before each freeing of an object.

I would think that it is much easier to check the object state manually
before the free.  That also places the check near the code object
manipulation of the object.

Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was
compiled with SLAB debugging on.  If there would be code in a constructor
handling SLAB_DEBUG_INITIAL then it would have to be conditional on
SLAB_DEBUG otherwise it would just be dead code.  But there is no such code
in the kernel.  I think SLUB_DEBUG_INITIAL is too problematic to make real
use of, difficult to understand and there are easier ways to accomplish the
same effect (i.e.  add debug code before kfree).

There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be
clear in fs inode caches.  Remove the pointless checks (they would even be
pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors.

This is the last slab flag that SLUB did not support.  Remove the check for
unimplemented flags from SLUB.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:57 -07:00
Nick Piggin
6fe6900e1e mm: make read_cache_page synchronous
Ensure pages are uptodate after returning from read_cache_page, which allows
us to cut out most of the filesystem-internal PageUptodate calls.

I didn't have a great look down the call chains, but this appears to fixes 7
possible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in
ecryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in
block2mtd.  All depending on whether the filler is async and/or can return
with a !uptodate page.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Linus Torvalds
15700770ef Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (38 commits)
  kconfig: fix mconf segmentation fault
  kbuild: enable use of code from a different dir
  kconfig: error out if recursive dependencies are found
  kbuild: scripts/basic/fixdep segfault on pathological string-o-death
  kconfig: correct minor typo in Kconfig warning message.
  kconfig: fix path to modules.txt in Kconfig help
  usr/Kconfig: fix typo
  kernel-doc: alphabetically-sorted entries in index.html of 'htmldocs'
  kbuild: be more explicit on missing .config file
  kbuild: clarify the creation of the LOCALVERSION_AUTO string.
  kbuild: propagate errors from find in scripts/gen_initramfs_list.sh
  kconfig: refer to qt3 if we cannot find qt libraries
  kbuild: handle compressed cpio initramfs-es
  kbuild: ignore section mismatch warning for references from .paravirtprobe to .init.text
  kbuild: remove stale comment in modpost.c
  kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE
  kbuild: fix make mrproper for Documentation/DocBook/man
  kbuild: remove kconfig binaries during make mrproper
  kconfig/menuconfig: do not hardcode '.config'
  kbuild: override build timestamp & version
  ...
2007-05-06 13:21:57 -07:00
Andrew Victor
693ef66d89 [MTD] [NAND] at91_nand.c: CMDLINE_PARTS support
This patch allows you to specify at91_nand partitions on the
kernel command line using the mtdparts variable, if
CONFIG_MTD_CMDLINE_PARTS is set.

Signed-off-by: Frank Mandarino <fmandarino@endrelia.com>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-03 07:40:41 +01:00
Thomas Knobloch
1a12f46af1 [MTD] [NAND] Tidy up handling of page number in nand_block_bad()
Further to the previous patch fixing the calculation of page number,
both branches are using the same result. Clean up the function 
accordingly, calculating it (and also masking with pagemask) only in one 
place.

Signed-off-by: Thomas Knobloch <knobloch@siemens.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-03 07:39:37 +01:00
Jean Delvare
6473d160b4 PCI: Cleanup the includes of <linux/pci.h>
I noticed that many source files include <linux/pci.h> while they do
not appear to need it. Here is an attempt to clean it all up.

In order to find all possibly affected files, I searched for all
files including <linux/pci.h> but without any other occurence of "pci"
or "PCI". I removed the include statement from all of these, then I
compiled an allmodconfig kernel on both i386 and x86_64 and fixed the
false positives manually.

My tests covered 66% of the affected files, so there could be false
positives remaining. Untested files are:

arch/alpha/kernel/err_common.c
arch/alpha/kernel/err_ev6.c
arch/alpha/kernel/err_ev7.c
arch/ia64/sn/kernel/huberror.c
arch/ia64/sn/kernel/xpnet.c
arch/m68knommu/kernel/dma.c
arch/mips/lib/iomap.c
arch/powerpc/platforms/pseries/ras.c
arch/ppc/8260_io/enet.c
arch/ppc/8260_io/fcc_enet.c
arch/ppc/8xx_io/enet.c
arch/ppc/syslib/ppc4xx_sgdma.c
arch/sh64/mach-cayman/iomap.c
arch/xtensa/kernel/xtensa_ksyms.c
arch/xtensa/platform-iss/setup.c
drivers/i2c/busses/i2c-at91.c
drivers/i2c/busses/i2c-mpc.c
drivers/media/video/saa711x.c
drivers/misc/hdpuftrs/hdpu_cpustate.c
drivers/misc/hdpuftrs/hdpu_nexus.c
drivers/net/au1000_eth.c
drivers/net/fec_8xx/fec_main.c
drivers/net/fec_8xx/fec_mii.c
drivers/net/fs_enet/fs_enet-main.c
drivers/net/fs_enet/mac-fcc.c
drivers/net/fs_enet/mac-fec.c
drivers/net/fs_enet/mac-scc.c
drivers/net/fs_enet/mii-bitbang.c
drivers/net/fs_enet/mii-fec.c
drivers/net/ibm_emac/ibm_emac_core.c
drivers/net/lasi_82596.c
drivers/parisc/hppb.c
drivers/sbus/sbus.c
drivers/video/g364fb.c
drivers/video/platinumfb.c
drivers/video/stifb.c
drivers/video/valkyriefb.c
include/asm-arm/arch-ixp4xx/dma.h
sound/oss/au1550_ac97.c

I would welcome test reports for these files. I am fine with removing
the untested files from the patch if the general opinion is that these
changes aren't safe. The tested part would still be nice to have.

Note that this patch depends on another header fixup patch I submitted
to LKML yesterday:
  [PATCH] scatterlist.h needs types.h
  http://lkml.org/lkml/2007/3/01/141

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02 19:02:35 -07:00
Alexander E. Patrakov
39f5fb3035 kconfig: fix path to modules.txt in Kconfig help
Documentation/modules.txt doesn't exist, but
Documentation/kbuild/modules.txt does.

Signed-off-by: Alexander E. Patrakov
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-02 20:58:11 +02:00
Adrian Bunk
4839f0481d [MTD] block2mtd_paramline[] mustn't be __initdata
block2mtd_paramline[] is used in the non-__init block2mtd_setup()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Joern Engel <joern@lazybastard.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02 12:33:17 +01:00
David Woodhouse
048c37b490 [MTD] [NAND] Support multiple chips in CAFÉ driver
The CAFÉ can handle two chip on separate chipselect lines. Hook up the
undocumented chipselect bits in the driver and probe both.

In the case of OLPC, it's not actually two separate devices -- it's a
single '1GiB' package with two 512MiB dies internally. So clear the
NAND_BBT_PERCHIP flag to treat it as a single chip for BBT purposes, and
make life easier for the firmware.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02 12:26:37 +01:00
David Woodhouse
14448005ab [MTD] [NAND] Rename cafe.c to cafe_nand.c and remove the multi-obj magic
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02 12:04:57 +01:00
Segher Boessenkool
8c61b7a7f4 [MTD] [NAND] Use rslib for CAFÉ ECC
Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02 12:00:20 +01:00
Stephen Rothwell
40cd3a4564 [POWERPC] Rename get_property to of_get_property: drivers
These are all the remaining instances of get_property.  Simple rename of
get_property to of_get_property.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-02 20:04:32 +10:00
Adrian Bunk
28b57cddb3 [MTD] [MAPS] drivers/mtd/maps/ck804xrom.c: convert pci_module_init()
This patch converts the pci_module_init() usage to pci_register_driver().

It's currently #if 0'ed, but still not a bad idea to change it.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27 23:34:21 +01:00
Mike Rapoport
54d33c4c71 [MTD] [NAND] CM-x270 MTD driver
This patch provides MTD support for NAND flash devices on CM-x270 modules.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27 23:04:32 +01:00
David Woodhouse
d1da4e50e5 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	drivers/mtd/Kconfig

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27 19:16:19 +01:00
Linus Torvalds
b928ed5618 Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6
* 'for-linus' of git://git.infradead.org/ubi-2.6:
  UBI: remove unused variable
  UBI: add me to MAINTAINERS
  JFFS2: add UBI support
  UBI: Unsorted Block Images
2007-04-27 10:42:35 -07:00
Knobloch, Thomas
78ab67da10 [MTD] [NAND] Wrong calculation of page number in nand_block_bad()
In case that there is no memory based bad block table available the
function nand_block_checkbad() in drivers/mtd/nand/nand_base.c will call
nand_block_bad() directly. When parameter 'getchip' is set to zero,
nand_block_bad() will not right shift the offset to calculate the
correct page number.

Signed-off-by: Thomas Knobloch <knobloch@siemens.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27 15:13:53 +01:00
Artem Bityutskiy
d468a03002 UBI: remove unused variable
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-04-27 15:11:44 +03:00
Artem B. Bityutskiy
801c135ce7 UBI: Unsorted Block Images
UBI (Latin: "where?") manages multiple logical volumes on a single
flash device, specifically supporting NAND flash devices. UBI provides
a flexible partitioning concept which still allows for wear-levelling
across the whole flash device.

In a sense, UBI may be compared to the Logical Volume Manager
(LVM). Whereas LVM maps logical sector numbers to physical HDD sector
numbers, UBI maps logical eraseblocks to physical eraseblocks.

More information may be found at
http://www.linux-mtd.infradead.org/doc/ubi.html

Partitioning/Re-partitioning

  An UBI volume occupies a certain number of erase blocks. This is
  limited by a configured maximum volume size, which could also be
  viewed as the partition size. Each individual UBI volume's size can
  be changed independently of the other UBI volumes, provided that the
  sum of all volume sizes doesn't exceed a certain limit.

  UBI supports dynamic volumes and static volumes. Static volumes are
  read-only and their contents are protected by CRC check sums.

Bad eraseblocks handling

  UBI transparently handles bad eraseblocks. When a physical
  eraseblock becomes bad, it is substituted by a good physical
  eraseblock, and the user does not even notice this.

Scrubbing

  On a NAND flash bit flips can occur on any write operation,
  sometimes also on read. If bit flips persist on the device, at first
  they can still be corrected by ECC, but once they accumulate,
  correction will become impossible. Thus it is best to actively scrub
  the affected eraseblock, by first copying it to a free eraseblock
  and then erasing the original. The UBI layer performs this type of
  scrubbing under the covers, transparently to the UBI volume users.

Erase Counts

  UBI maintains an erase count header per eraseblock. This frees
  higher-level layers (like file systems) from doing this and allows
  for centralized erase count management instead. The erase counts are
  used by the wear-levelling algorithm in the UBI layer. The algorithm
  itself is exchangeable.

Booting from NAND

  For booting directly from NAND flash the hardware must at least be
  capable of fetching and executing a small portion of the NAND
  flash. Some NAND flash controllers have this kind of support. They
  usually limit the window to a few kilobytes in erase block 0. This
  "initial program loader" (IPL) must then contain sufficient logic to
  load and execute the next boot phase.

  Due to bad eraseblocks, which may be randomly scattered over the
  flash device, it is problematic to store the "secondary program
  loader" (SPL) statically. Also, due to bit-flips it may become
  corrupted over time. UBI allows to solve this problem gracefully by
  storing the SPL in a small static UBI volume.

UBI volumes vs. static partitions

  UBI volumes are still very similar to static MTD partitions:

    * both consist of eraseblocks (logical eraseblocks in case of UBI
      volumes, and physical eraseblocks in case of static partitions;
    * both support three basic operations - read, write, erase.

  But UBI volumes have the following advantages over traditional
  static MTD partitions:

    * there are no eraseblock wear-leveling constraints in case of UBI
      volumes, so the user should not care about this;
    * there are no bit-flips and bad eraseblocks in case of UBI volumes.

  So, UBI volumes may be considered as flash devices with relaxed
  restrictions.

Where can it be found?

  Documentation, kernel code and applications can be found in the MTD
  gits.

What are the applications for?

  The applications help to create binary flash images for two purposes: pfi
  files (partial flash images) for in-system update of UBI volumes, and plain
  binary images, with or without OOB data in case of NAND, for a manufacturing
  step. Furthermore some tools are/and will be created that allow flash content
  analysis after a system has crashed..

Who did UBI?

  The original ideas, where UBI is based on, were developed by Andreas
  Arnez, Frank Haverkamp and Thomas Gleixner. Josh W. Boyer and some others
  were involved too. The implementation of the kernel layer was done by Artem
  B. Bityutskiy. The user-space applications and tools were written by Oliver
  Lohmann with contributions from Frank Haverkamp, Andreas Arnez, and Artem.
  Joern Engel contributed a patch which modifies JFFS2 so that it can be run on
  a UBI volume. Thomas Gleixner did modifications to the NAND layer. Alexander
  Schmidt made some testing work as well as core functionality improvements.

Signed-off-by: Artem B. Bityutskiy <dedekind@linutronix.de>
Signed-off-by: Frank Haverkamp <haver@vnet.ibm.com>
2007-04-27 14:23:33 +03:00
Stephen Rothwell
ccf0dec6fc [SPARC/64] constify of_get_property return: drivers
The only unfortunate bit here is that the name field of struct map_info
is not const, so for now we put a cast on the assignment of it.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:54:27 -07:00
Randy Dunlap
06d63cc51d [MTD] [MAPS] fix plat-ram printk format
drivers/mtd/maps/plat-ram.c:172: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-26 07:28:58 +01:00
Adrian Hunter
c36c46d53b [MTD] [OneNAND] Exit loop only when column start with 0
The JFFS2 requests OOB function from column 0.
But the oobtest in nand-tests doesn't.
So we only exit loop only when column start with 0.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-25 11:09:37 +01:00
Kyungmin Park
ad28634366 [MTD] [OneNAND] Fix access the past of the real oobfree array
Here it's not the case: all the entries are occupied by
OOB chunks. Therefore, once we get into a loop like

        for (free = this->ecclayout->oobfree; free->length; ++free) {
	}

we might end up scanning past the real oobfree array.

Probably the best way out, as the same thing might happen for common NAND
as well, is to check index against MTD_MAX_OOBFREE_ENTRIES.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-25 11:09:23 +01:00
Kyungmin Park
c19df27ec7 [MTD] [OneNAND] Update Samsung OneNAND official URL
Update Samsung OneNAND official URL.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-25 11:09:06 +01:00
Christoph Hellwig
3e67fe4543 [MTD] Finish conversion mtd_blkdevs to use the kthread API
Remove waitqueue, 'exiting' flag and completion; use kthread APIs instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-22 20:48:29 +01:00
Jan Engelhardt
ec98c681a5 Use menuconfig objects: MTD
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 <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-19 16:21:41 -05:00
Eric W. Biederman
99f9b2431e [MTD] mtd_blkdevs: Convert to use the kthread API
thread_run is used intead of kernel_thread, daemonize, and mucking
around blocking signals directly.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-19 16:16:46 -05:00
Shashi Rao
e6be133b68 [MTD] Fix fwh_lock locking
This is on a custom board with a mapping driver access to an ST
M50LPW080 chip. This chip is probed successfully with
do_map_probe("jedec_probe",...). If I use the mtdchar interface to
perform unlock->erase->program->lock on any of the 16 eraseblocks in the
chip, the chip is left in FL_STATUS mode while the data structures
believe that the chip is in FL_READY mode. Hence, any subsequent reads
to any flash byte results in 0x80 being read.

Signed-off-by: Shashi Rao <shashi@sun.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 14:11:20 -04:00
Adrian Hunter
a5ac8aeb29 [MTD] nandsim: enhance nandsim to allow arbitrary NAND size
A new module parameter has been added called 'overridesize',
which overrides the size that would be determined by the
ID bytes. 'overridesize' is specified in erase blocks and
as the exponent of a power of two e.g. 5 means a size of
32 erase blocks.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:55:55 -04:00
Adrian Hunter
57aa6b545f [MTD] nandsim: Enhance nandsim optionally to report wear information
A new module parameter 'rptwear' specifies how many erases between
reporting wear information.  Zero means never.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:55:29 -04:00
Adrian Hunter
514087e74f [MTD] nandsim: enhance nandsim to simulate flash errors
New module parameters have been added to nandsim to
simulate:

        bitflips        random bit flips
        badblocks       blocks that are initially marked bad
        weakblocks      blocks that fail to erase after a
                        small number of erase cycles
        weakpages       pages that fail to write after a
                        small number of successful writes
        gravepages      pages that fail to read after a
                        small number of successful reads

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:55:08 -04:00
Adrian Hunter
2b77a0ed54 [MTD] nandsim: add partition capability to nandsim
Enhance nandsim to be able to create more than 1 partition.
A new module parameter 'parts' may be used to specify partition
sizes.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:54:50 -04:00
Andre Renaud
4226b51037 [MTD] [NAND] Casting bug in nand_default_block_markbad
There is a slight bug in nand_default_block_markbad, where the offset is
cast to an integer, prior to being shifted. This means that on large
offsets, it is incorrectly doing a signed shift & losing bits. Fixed
this by doing the cast after the shift (as is done elsewhere in the code).

Signed-off-by: Andre Renaud <andre@bluewatersys.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:50:59 -04:00
Hans-Jürgen Koch
340ea370c2 [MTD] Driver for AT26Fxxx dataflash devices
Add support for AT26Fxxx dataflash devices. These devices have a quite different
commandset than the AT45xxx chips, which are handled by at91_dataflash.c, so a
combined driver turned out to be more ugly than useful.

Tested only on AT26F004.

Signed-off-by: Hans-Jürgen Koch <hjk@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:42:56 -04:00
Thomas Gleixner
408b483d9c [MTD] Fix length comparison in MEMREADOOB
The ops.len member is not initialized, because it is unused for this
operation. The length check needs to use ops.ooblen instead

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 13:40:00 -04:00
Thomas Gleixner
1cf9827b68 [MTD] [NAND] Move ancient NAND chip support into a config option
The support for obsolete ancient NAND chips adds .data size and one
of the old ids conflicts with a modern one. Make the support for
such chips depending on a config option.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 18:30:57 +01:00
Thomas Gleixner
90424de8d0 [MTD] [NAND] Use ecc.read/write_page_raw consequently
Use the functions in the ecc structure instead of the default ones,
so the override by the board driver is effective also for software ecc
code paths.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 18:28:17 +01:00
sshahrom@micron.com
8c60e5475d [MTD][NAND] Add Micron Manufacturer ID
Add Micron Manufacturer ID.

Signed-off-by: Shahrom Sharif <sshahrom@micron.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 18:27:06 +01:00
Ralf Baechle
873b6a2306 [MTD] Fix dependencies for MIPS MTD drivers
o A dependency on the processor architecture does not make sense;
   delete it.
 o The Alchemy and MTX drivers requires MTD_PARTITIONS and MTD_CFI to work,
   make those dependencies.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 18:24:51 +01:00
Ralf Baechle
19da63d1d2 [MTD] Alchemy cleanups
Delete RCS $Id string and unused debug code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-17 18:19:58 +01:00
Rodolfo Giometti
0ecbc81adf [MTD] [NOR] Support for auto locking flash on power up
Auto unlock sectors on resume for auto locking flash on power up.

Signed-off-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-02 14:12:23 -04:00
Marc St-Jean
68aa0fa87f [MTD] PMC MSP71xx flash/rootfs mappings
Add flash and rootfs mappings for the PMC-Sierra MSP71xx devices.

This patch references some platform support files previously submitted to
the linux-mips@linux-mips.org list.

Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-02 14:10:58 -04:00
David Woodhouse
9333907084 Merge git://git.kernel.org/pub/scm/linux/kernel/git/joern/misc 2007-03-23 17:31:17 +00:00
David Woodhouse
8e5368a1e2 [MTD] [NAND] Remember timing settings for CAFÉ NAND controller.
We'll need them for suspend/resume.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-23 10:40:04 +00:00
Kyungmin Park
470bc84436 [MTD] [OneNAND] Classify the page data and oob buffer
Classify the page data and oob buffer
and it prevents the memory fragementation (writesize + oobsize)

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-09 08:08:09 +00:00
Kyungmin Park
5bc399e9ef [MTD] [OneNAND] Exit the loop when transferring/filling of the oob is finished
When transferring/filling of the oob is finished in OOB_AUTO, we exit the loop

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-09 08:06:39 +00:00
Adrian Hunter
81280d5879 [MTD] [OneNAND] add Nokia Copyright and a credit
add Nokia Copyright and a credit

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-09 08:05:57 +00:00
Kyungmin Park
e3da8067b3 [MTD] [OneNAND] Fix typo & wrong comments
Fix typo & wrong comments

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-09 08:05:22 +00:00
Kyungmin Park
91014e9bfa [MTD] [OneNAND] Use oob buffer instead of main one in oob functions
In oob functions, it is used main buffer instead of oob one. So fix it.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-09 08:04:25 +00:00
Adrian Hunter
74641d7527 [MTD] Correct partition failed erase address
If an erase operation fails, the address at which the
failure occurred is returned by the driver.  The MTD
partition must adjust this address (by subtracting the
partition offset) before returning to the caller.
This was not happening, which caused JFFS2 to mark
the wrong block bad!

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08 10:45:04 +00:00
Robert P. J. Day
89e2bf61da [MTD] [NAND] Correct misspelled preprocessor variable.
Replace the apparently misspelled preprocessor variable
"MTD_NAND_DISKONCHIP_BBTWRITE" with the correct form
"CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08 09:48:14 +00:00
Alan Cox
99109a6dac [MTD] [MAPS] dilnetpc: Fix printk warning
The type of a resource could be 32 or 64bit depending upon platform or
option so cast it explicitly.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08 09:46:28 +00:00
Vijay Sampath
83d480917b [MTD] [NOR] Fix oops in cfi_amdstd_sync
The files cfi_cmdset_0002.c and cfi_cmdset_0020.c do not initialize their
wait queues like is done in cfi_cmdset_0001.c.  This causes an oops when
the wait queue is accessed.  I have copied the code from cfi_cmdset_0001.c
that is pertinent to initialization of the wait queue.

Signed-off-by: Vijay Sampath <vsampath@gmail.com>
Acked-by: Joern Engel <joern@lazybastard.org>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08 09:22:38 +00:00
Cyrill Gorcunov
dc164bbb4b [MTD] ESB2 check for closed ROM window
Add checking for closed ROM window on Intel ESB2 Southbridge.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08 09:21:42 +00:00
Vitaly Wool
1f92267c51 [MTD] [NAND] make oobavail public
During the MTD rework the oobavail parameter of mtd_info structure has become
private. This is not quite correct in terms of integrity and logic. If we have
means to write to OOB area, then we'd like to know upfront how many bytes out
of OOB are spare per page to be able to adapt to specific cases.
The patch inlined adds the public oobavail parameter.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08 09:17:43 +00:00
Arnaud Patard
dff5e44c36 [ARM] 4233/1: nand/s3c2410.c: warning fix
Noticed while building a s3c2410 kernel :
drivers/mtd/nand/s3c2410.c: In function 's3c2440_nand_calculate_ecc':
drivers/mtd/nand/s3c2410.c:476: warning: format '%06x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'

This patch fixes it.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-25 16:41:41 +00:00
Joern Engel
21d31f1f7c [PATCH] [MTD] block2mtd: remove readahead code
Over the years there was a slow trickle of complaints against the readahead
code.  Most of them concerned performance, Peter Zijlstra stumbled over it
when working unrelated changes and I believe there was an actual bug report.
Oh, Andrew Morton also complained about duplicating code from mm/readahead.c.

It is just not worth it.  On flash media like usb sticks, readahead will
make things go slow - very slow.  On spinning disks, readahead may be a
win, but this is definitely not the place to add it.

Signed-off-by: Jörn Engel <joern@lazybastard.org>
2007-02-20 20:22:22 +01:00
Joern Engel
8870530a40 [PATCH] [MTD] block2mtd: remove warning
drivers/mtd/devices/block2mtd.c:311:9: warning: symbol 'dev' shadows an earlier one
drivers/mtd/devices/block2mtd.c:294:23: originally declared here

Signed-off-by: Jörn Engel <joern@lazybastard.org>
2007-02-20 20:21:41 +01:00
Joern Engel
0ffb74ccc0 [PATCH] [MTD] block2mtd: remove casts
Remove two casts - they were not only pointless, but outright harmful.

Spotted by Felix Fietkau <nbd@openwrt.org>

Signed-off-by: Jörn Engel <joern@lazybastard.org>
2007-02-20 20:20:58 +01:00
Linus Torvalds
4935361766 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (49 commits)
  [MTD] [NAND] S3C2412 fix hw ecc
  [MTD] [NAND] Work around false compiler warning in CAFÉ driver
  [JFFS2] printk warning fixes
  [MTD] [MAPS] ichxrom warning fix
  [MTD] [MAPS] amd76xrom warning fix
  [MTD] [MAPS] esb2rom warning fixes
  [MTD] [MAPS] ck804xrom warning fix
  [MTD] [MAPS] netsc520 warning fix
  [MTD] [MAPS] sc520cdp warning fix
  [MTD] [ONENAND] onenand_base warning fix
  [MTD] [NAND] eXcite nand flash driver
  [MTD] Improve heuristic for detecting wrong-endian RedBoot partition table
  [MTD] Fix RedBoot partition parsing regression harder.
  [MTD] [NAND] S3C2410: Hardware ECC correction code
  [JFFS2] Use MTD_OOB_AUTO to automatically place cleanmarker on NAND
  [MTD] Clarify OOB-operation interface comments
  [MTD] remove unused ecctype,eccsize fields from struct mtd_info
  [MTD] [NOR] Intel: remove ugly PROGREGION macros
  [MTD] [NOR] STAA: use writesize instead off eccsize to represent ECC block
  [MTD] OneNAND: Invalidate bufferRAM after erase
  ...
2007-02-19 13:34:11 -08:00
Matthieu CASTET
4f65992381 [MTD] [NAND] S3C2412 fix hw ecc
S3C2412 use differents registers than s3c2440 for hw ecc handling.

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.fr>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:47:47 +00:00
Andrew Morton
2a7295b277 [MTD] [NAND] Work around false compiler warning in CAFÉ driver
drivers/mtd/nand/cafe.c: In function 'cafe_nand_cmdfunc':
drivers/mtd/nand/cafe.c:269: warning: 'irqs' may be used uninitialized in this function

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:45:05 +00:00
Andrew Morton
3a38d3af92 [MTD] [MAPS] ichxrom warning fix
drivers/mtd/maps/ichxrom.c: In function 'ichxrom_init_one':
drivers/mtd/maps/ichxrom.c:231: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
drivers/mtd/maps/ichxrom.c:231: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:42:51 +00:00
Andrew Morton
1a6284cb6f [MTD] [MAPS] amd76xrom warning fix
drivers/mtd/maps/amd76xrom.c: In function 'amd76xrom_init_one':
drivers/mtd/maps/amd76xrom.c:209: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:42:25 +00:00
Andrew Morton
5ad0fdc6dd [MTD] [MAPS] esb2rom warning fixes
drivers/mtd/maps/esb2rom.c: In function 'esb2rom_init_one':
drivers/mtd/maps/esb2rom.c:293: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:42:03 +00:00
Andrew Morton
65af07141b [MTD] [MAPS] ck804xrom warning fix
drivers/mtd/maps/ck804xrom.c: In function 'ck804xrom_init_one':
drivers/mtd/maps/ck804xrom.c:211: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
drivers/mtd/maps/ck804xrom.c:211: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:41:47 +00:00
Andrew Morton
3ce32f5d12 [MTD] [MAPS] netsc520 warning fix
drivers/mtd/maps/netsc520.c: In function 'init_netsc520':
drivers/mtd/maps/netsc520.c:97: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:41:31 +00:00
Andrew Morton
e389612dec [MTD] [MAPS] sc520cdp warning fix
drivers/mtd/maps/sc520cdp.c:241: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
drivers/mtd/maps/netsc520.c: In function 'init_netsc520':

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:41:01 +00:00
Andrew Morton
5785bdd6fc [MTD] [ONENAND] onenand_base warning fix
drivers/mtd/onenand/onenand_base.c: In function 'onenand_bbt_read_oob':
drivers/mtd/onenand/onenand_base.c:1033: warning: format '%i' expects type 'int', but argument 3 has type 'size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-18 16:38:32 +00:00
Thomas Gleixner
2db6346f76 [PATCH] Scheduled removal of SA_xxx interrupt flags fixups 2
The obsolete SA_xxx interrupt flags have been used despite the scheduled
removal.  Fixup the remaining users in -mm.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:55 -08:00
Tim Schmielau
cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
Arjan van de Ven
d54b1fdb1d [PATCH] mark struct file_operations const 5
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:45 -08:00
Andrew Morton
fc0ecff698 [PATCH] remove invalidate_inode_pages()
Convert all calls to invalidate_inode_pages() into open-coded calls to
invalidate_mapping_pages().

Leave the invalidate_inode_pages() wrapper in place for now, marked as
deprecated.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:31 -08:00
Thomas Koeller
67a9c7af1f [MTD] [NAND] eXcite nand flash driver
This is a nand flash driver for the eXcite series of intelligent
cameras manufactured by Basler Vision Technologies AG.

Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-11 17:57:49 +01:00
David Woodhouse
7ca353a428 [MTD] Improve heuristic for detecting wrong-endian RedBoot partition table
Also limit the amount we scan to one eraseblock.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-10 09:58:31 +00:00
Rod Whitby
11192146e5 [MTD] Fix RedBoot partition parsing regression harder.
Correct the location of the recalculation of the FIS directory size,
and also add the same recalculation for the byte-swapped case.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-10 09:26:48 +00:00
Ben Dooks
a2593247d7 [MTD] [NAND] S3C2410: Hardware ECC correction code
Add support for correcting errors detected by the
hardware ECC.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 17:12:59 +00:00
Artem Bityutskiy
64f6071056 [MTD] remove unused ecctype,eccsize fields from struct mtd_info
Remove unused and broken mtd->ecctype and mtd->eccsize fields
from struct mtd_info. Do not remove them from userspace API
data structures (don't want to breake userspace) but mark them
as obsolete by a comment. Any userspace program which uses them
should be half-broken anyway, so this is more about saving
data structure size.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:27:12 +00:00
Artem Bityutskiy
d416085572 [MTD] [NOR] Intel: remove ugly PROGREGION macros
Remove ugly and weird MTD_PROGREGION_CTRLMODE_VALID() and
MTD_PROGREGION_CTRLMODE_INVALID() macros. There is only one
user of them and they are used locally just for printing.

Anyway, this patch is a preparation for removing mtd->ecctype
and mtd->eccsize, but these macros use them. Fix this.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:26:37 +00:00
Artem Bityutskiy
992c9d24c4 [MTD] [NOR] STAA: use writesize instead off eccsize to represent ECC block
The cfi_staa_write_buffers() uses mtd->eccsize but means mtd->writesize.
BTW, mtd-eccsize is broken and is not initialized, which means the code
fixed by this patch is broken/unused anyway.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:26:10 +00:00
Adrian Hunter
480b9dfb1f [MTD] OneNAND: Invalidate bufferRAM after erase
OneNAND has internal bufferRAMs.  The driver keeps track of
what is in the bufferRAM to save having to load from the
NAND core.  After an erase operation, the driver must
mark bufferRAM invalid if it refers to the erased block.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:16:55 +00:00
Martin Michlmayr
678c857f3c [MTD] Don't oops when the RedBoot partition table is empty
This fixes a regression with the RedBoot parsing code introduced by
commit 0b47d65408

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:06:53 +00:00
Adrian Bunk
d24030f0f7 [MTD] [NAND] Fix an off-by-one in a BUG_ON in CAFÉ ECC correction.
err_pos_lut[4096] of an array with 4096 elements is a bug.

Spotted by the Coverity checker.

While I was at it, I also converted it to ARRAY_SIZE().

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:06:02 +00:00
Adrian Hunter
0373615579 [MTD] [NAND] Correctly validate out-of-band offset and length
Add checks to ensure that out-of-band reads and writes are
not attempted with an invalid offset or length.  Specifically,
the offset must be less than the size of oob for a page
and the length must not go beyond the size of the device.
Additionally the checks must adjust for auto-placement
(MTD_OOB_AUTO) of oob data.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 15:02:40 +00:00
David Woodhouse
2a5bd59672 [MTD] Fix default timeouts for Intel NOR flash
In commit c172471b78 Nico switched to using
common code for polling for command completion. Unfortunately he also used
a common default timeout for both write and erase commands, despite the
fact that erases can take a _whole_ lot longer. Use a more sensible
default for erase timeout.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 14:39:10 +00:00
David Woodhouse
c1f1625860 Merge branch 'master' of git://git.infradead.org/~kmpark/onenand-mtd-2.6 2007-02-09 12:36:22 +00:00
akpm@osdl.org
862c93b991 [MTD] CK804XROM must depend on PCI
CONFIG_MTD_CK804XROM=y, CONFIG_PCI=n results in the following compile
error:

  CC      drivers/mtd/maps/ck804xrom.o
ck804xrom.c: In function 'ck804xrom_init_one':
ck804xrom.c:114: error: implicit declaration of function 'pci_dev_get'
ck804xrom.c:114: warning: assignment makes pointer from integer without a cast
make[4]: *** [drivers/mtd/maps/ck804xrom.o] Error 1

Considering what hardware this driver is driving, a dependency on PCI
also seems logical.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09 11:40:06 +00:00
Adrian Hunter
cde36b37d6 [MTD] OneNAND: Select correct chip's bufferRAM for DDP
OneNAND double-density package (DDP) has two chips, each with
their own bufferRAM.  The driver will skip loading data from
the NAND core if the data can be found in a bufferRAM, however
in that case, the correct chip's bufferRAM must be selected
before reading from bufferRAM.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-09 09:42:42 +09:00
Kyungmin Park
211ac75f5e [MTD] OneNAND: Error message printing and bad block scan erros
Provide the bad block scan with its own read function so that important error
messages that are not from the the bad block scan, can always be printed.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-07 12:15:01 +09:00
Adrian Hunter
81f38e1123 [MTD] OneNAND: Subpage write returned incorrect length written
When a write is done, the length written is returned.  When a
single subpage is written the length returned should be the
subpage size, however the page size was being returned.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-07 10:55:23 +09:00
Adrian Hunter
52e4200a6d [MTD] OneNAND: Do not allow oob write past end of page
OneNAND can write oob to successive pages, but NAND
does not do that.  For compatibility, disallow OneNAND
from writing past the end of the page.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-06 09:15:39 +09:00
David Woodhouse
aa8f127855 [MTD NAND] CAFÉ controller depends, perhaps unsurprisingly, on NAND
Noticed by Ingo.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-05 13:32:55 +00:00
David Woodhouse
4285431fb6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-02-05 13:25:21 +00:00
Kyungmin Park
5b4246f1b0 [MTD] OneNAND: Fix typo and remove unnecessary goto statement
In previos patch, there's typo so fix it
Remove unnecessary goto statement

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-02 09:39:21 +09:00
Kyungmin Park
abf3c0f23d [MTD] OneNAND: Reduce internal BufferRAM operations
It use blockpage instead of a pair (block, page). It can also cover a small chunk access. 0x00, 0x20, 0x40 and so on.

And in JFFS2 behavior, sometimes it reads two pages alternatively.
e.g., It first reads A page, B page and A page.
So we check another bufferram to find requested page.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-02 09:29:36 +09:00
Kyungmin Park
4f4fad27ac [MTD] OneNAND: Remove line of code that was meant to be deleted in OOB_AUTO
- Iterations of the patch to add oob auto-placement support to OneNAND left a line of code that was meant to have been deleted.
- read mtd->oobsize in onenand_transfer_auto_oob to optimized memcpy

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-02 09:22:21 +09:00
Adrian Hunter
a5e7c7b447 [MTD] OneNAND: Add support for auto-placement of out-of-band data
Enable the use of oob operation mode MTD_OOB_AUTO with OneNAND.
Note that MTD_OOB_RAW is still not supported.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-02-01 09:28:18 +09:00
Alan
c033a7e3d5 [MTD] ck804xrom: fix a pci_find_device
Going over the bugs and warnings I found this one left over. The other
changes have already been correctly done for this driver but the actual
switch to pci_get_device that they assume has not.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-01-31 17:26:02 +00:00
Kyungmin Park
9bfbc9b24f [MTD] OneNAND: Remove unused fields
- Remove unused fields
- Fix typo

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-31 14:25:21 +09:00
Al Viro
a12743026c [PATCH] mtd/nand/cafe.c missing include of dma-mapping.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 08:39:20 -08:00
Adrian Hunter
8b29c0b6eb [MTD] OneNAND: Amend write-verify to compare to original buffer
When write-verify is enabled (CONFIG_MTD_ONENAND_VERIFY_WRITE),
the data written is read back and compared.  The comparison
was being made between dataRAM buffers, but this does not
verify that the data made it to the dataRAM correctly in
the first place.  This patch amends write-verify to
compare back to the original buffer.  It also now verifies
sub-page writes.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-25 14:06:33 +09:00
David Woodhouse
f7c37d7b8a [MTD] [NAND] Remove debugging cruft from CAFÉ NAND driver.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-01-23 23:36:43 +08:00
David Woodhouse
527a4f45ef [MTD] [NAND] Inherit CAFÉ NAND timing setup from firmware
The precise timings are board-specific (or NAND chip specific) and don't
belong here. If they're set already, then use what we find there.
Otherwise, revert to the most conservative default values (and whinge).

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-01-23 23:36:42 +08:00
Adrian Hunter
ec255e3406 [MTD] OneNAND: Check first or second pages for bad block information
OneNAND records bad block information in the out-of-band area of either the first or second page of a block.  Due to a logic error, only the first page was being checked.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-22 21:30:31 +09:00
Adrian Hunter
f00b0046d2 [MTD] OneNAND: Free the bad block table when the device is released
OneNAND does 2 memory allocations for bad block information.
Only one of them was being freed.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-22 21:27:56 +09:00
Kyungmin Park
75384b0d9c [MTD] OneNAND: Update copyrights and code cleanup
Update copyrights and code cleanup

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 11:10:57 +09:00
Kyungmin Park
738d61f537 [MTD] OneNAND: Reduce Double Density Package (DDP) operations
- DDP code clean-up
- Reduce block & bufferram operations in DDP

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 11:00:31 +09:00
Adrian Hunter
9d03280129 [MTD] OneNAND: Return an error if a read timeout occurs
If OneNAND is operating within specification, all operations should easily be
completed within the 20 millisecond timeout.
This patch faithlessly adds a check for the timeout and returns an error in
that case.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 10:59:44 +09:00
Kyungmin Park
10b7a2bd6b [MTD] OneNAND: Fix unlock all status error
We have to set ONENAND_REG_START_BLOCK_ADDRESS to avoid status error

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 10:59:16 +09:00
David Woodhouse
9cdf083f98 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-01-18 10:34:51 +11:00
Adrian Hunter
0fc2ccea4c [MTD] OneNAND: Handle DDP chip boundary during read-while-load
The read-while-load method of reading from OneNAND needs to allow
for the change of bufferRAM address at the boundary between the
two chips in a double density (DDP) device.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 15:05:22 +02:00
Kyungmin Park
b3c9f8bfe7 [MTD] OneNAND: return ecc error code only when 2-bit ecc occurs
we don't need to return ecc error when 1-bit ecc.
We only return error code when 2-bit ecc error

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 15:04:28 +02:00
Adrian Hunter
a8de85d557 [MTD] OneNAND: Implement read-while-load
Read-while-load enables higher performance read operations.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:58:42 +02:00
Kyungmin Park
2fd32d4af8 [MTD] OneNAND: fix onenand_wait bug in read ecc error
Even though there is ECC error. OneNAND driver updates the buffram as valid

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:40:16 +02:00
Artem Bityutskiy
61a7e1983e [MTD] OneNAND: release CPU in cycles
This patch teaches OneNAND to release processor in
read/write/erase cycles and let other processes proceed.
Also, remove buggi touch watchdog call which only hides
the problem instead of solving it.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:39:57 +02:00
Kyungmin Park
60d84f9739 [MTD] OneNAND: add subpage write support
OneNAND supports up to 4 writes at one NAND page. Add support of this feature.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:35:00 +02:00
Kyungmin Park
f627248736 [MTD] OneNAND: fix onenand_wait bug
Fix onenand_wait error reporting

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:34:42 +02:00
David Brownell
de4fa99266 [PATCH] SPI/MTD: mtd_dataflash oops prevention
Return a fault code if the Dataflash driver runs into a "no device present"
error when the MISO line has a pulldown (it currently expects a pullup), so
that rmmod won't oops.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30 10:56:42 -08:00
David Brownell
17c65d6990 [PATCH] m25p80 build fixes (with MTD debug)
Fix build issues that show up with the m25p80 SPI flash driver when
building with MTD debug enabled.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30 10:56:42 -08:00
Robert P. J. Day
5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Robert P. J. Day
cd86128088 [PATCH] Fix numerous kcalloc() calls, convert to kzalloc()
All kcalloc() calls of the form "kcalloc(1,...)" are converted to the
equivalent kzalloc() calls, and a few kcalloc() calls with the incorrect
ordering of the first two arguments are fixed.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:52 -08:00
Ralf Baechle
0bf3a9d82a [MTD] Nuke IVR leftovers
Support for the ITE8172 based boards was deleted a while ago so this is
dead code.

The Kconfig dependency on MIPS was wrong anyway, MIPS is a processor
architecture and nothing else; guesses on systems architecture are likely
to be wrong ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-11 16:30:26 +00:00
Kyungmin Park
66a1e421b9 [MTD] OneNAND: fix oob handling in recent oob patch
There are missing place in recent MTD oob patch

http://git.infradead.org/?p=mtd-2.6.git;a=commitdiff;h=7014568bad55c20b7ee4f439d78c9e875912d51f

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-11 10:46:20 +00:00
David Woodhouse
76ab40e465 [MTD] Fix ssfdc blksize typo
I will not commit even trivial and obvious one-line fixes without building.
I will not commit even trivial and obvious one-line fixes without building.
I will not commit even trivial and obvious one-line fixes without building.
I will not commit even trivial and obvious one-line fixes without building.
Only clever people can get away with that.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-11 09:43:38 +00:00
David Woodhouse
db06e2a93f [MTD] Fix SSFDC build for variable blocksize.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-10 11:48:54 +00:00
Randy Dunlap
dffbc42b5a [MTD] ESB2ROM uses PCI
ESB2ROM uses PCI interface functions.

With CONFIG_PCI=n:
drivers/mtd/maps/esb2rom.c: In function 'esb2rom_init_one':
drivers/mtd/maps/esb2rom.c:167: warning: implicit declaration of function 'pci_dev_get'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-10 11:43:21 +00:00
Vitaly Wool
a2c2fe4b24 [MTD] of_device-based physmap driver
inlined below is the patch that adds physmap driver for of_device.
It's an MTD part of the two-part support for flash/ROM devices based
on Open Firmware descriptions. The arch part (currently only PowerPC
which is no surprise) was introduced to powerpc folks earlier and
recently the older version of the powerpc part has been included into
the powerpc.git tree
(see http://www.kernel.org/git/?p=linux/kernel/git/paulus/powerpc.git;a=commitdiff;h=28f9ec349ae47c91768b7bc5607db4442c818e11).

 drivers/mtd/maps/Kconfig      |    9 +
 drivers/mtd/maps/Makefile     |    1
 drivers/mtd/maps/physmap_of.c |  255 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 265 insertions(+)

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Sergey Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:32:34 +00:00
Rod Whitby
f33665d931 [MTD] Support combined RedBoot FIS directory and configuration area
RedBoot supports storing the FIS directory and the RedBoot
configuration area in the same block of flash memory.  This is
not the most common RedBoot configuration, but it is used on
commercially available boards supported by the kernel.

A recent patch to mtd/redboot.c (http://lkml.org/lkml/2006/3/20/410)
which corrected the skipping of deleted table entries has exposed the
latent problem of the kernel redboot parser running off the end of the
FIS directory and interpreting the RedBoot configuration information
as table entries.

This patch terminates the table parsing when the first truly empty
entry is found (table entry deletion only clears the first byte of the
name, so two cleared bytes in a row indicates the end of the table),
thereby supporting the combined redboot FIS directory and RedBoot
configuration information flash layout scenario.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:28:26 +00:00
Andrew Victor
dd11b8cdf0 [MTD] NAND: Support for 16-bit bus-width on AT91.
Add support for 16-bit NAND bus-width for the AT91 NAND driver.

The 16-bit NAND is found on the Atmel AT91SAM9260-EK and AT91SAM9261-EK
boards.

Orignal Patch from Patrice Vilchez

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:25:17 +00:00
Artem Bityutskiy
4a0c50c07a [MTD] nandsim: bugfix in page addressing
Number of address bytes for 64-128 MiB NANDs is 4, not 5.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:22:54 +00:00
Christoph Lameter
e94b176609 [PATCH] slab: remove SLAB_KERNEL
SLAB_KERNEL is an alias of GFP_KERNEL.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:24 -08:00
Timo Lindhorst
418b2e56b8 [MTD] NAND: use SmartMedia ECC byte order for ndfc
Select MTD_NAND_ECC_SMC (ECC byte order according to the Smart Media
Specification) if MTD_NAND_NDFC is used.
Using the wrong byte order causes fatal, unnoticed data damage.

For further information see:
http://lists.infradead.org/pipermail/linux-mtd/2006-November/016920.html

Signed-off-by: Timo Lindhorst <lindhors@linux.vnet.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-05 18:00:13 +00:00
Yoshinori Sato
0b47d65408 [MTD] redboot partition combined fis / config problem
Can't analyze FIS directory in CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
really.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-01 10:01:50 +00:00
Mariusz Kozlowski
7dcb483de3 [MTD] [NAND] Compile fix in rfc_from4.c
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-01 09:59:49 +00:00
David Woodhouse
bd3c97a7c7 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-01 09:56:43 +00:00
Haavard Skinnemoen
6c33cafc79 [MTD] bugfix: DataFlash is not bit writable
This patch fixes the
"jffs2_flash_writev(): Non-contiguous write to 00825300 with mtd_dataflash" bug.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-12-01 10:30:45 +02:00
David Woodhouse
c9ac597729 [MTD] Remove trailing whitespace
The newly-added cafe_ecc.c had a lot of it because of the way the lookup
table was auto-generated; clean up the other files too while we're at it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-30 08:17:38 +00:00
Jan Engelhardt
03a67a46af Fix typos in doc and comments
Changes persistant -> persistent. www.dictionary.com does not know
persistant (with an A), but should it be one of those things you can
spell in more than one correct way, let me know.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 05:32:19 +01:00
Matt LaPlante
3cb2fccc5f Fix misc Kconfig typos
Fix various Kconfig typos.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 05:22:59 +01:00
David Woodhouse
dd36f26735 [MTD] Use EXPORT_SYMBOL_GPL() for exported symbols.
While we're fixing up the newly-added symbol, change the neighbouring ones
too, for consistency and also to reflect the author's interpretation of
the GPL -- which is that _no_ non-GPL modules are permitted. The author
always intended his code to be released under the GPL, and believes that
any new interpretation of 'EXPORT_SYMBOL' as being any different from
'EXPORT_SYMBOL_GPL' is entirely invalid; the GPL requires that _all_
exports have the semantics of the new 'EXPORT_SYMBOL_GPL', which means the
extra four characters are entirely redundant.

But since those four extra characters trigger the check for illegal
modules in a way that just EXPORT_SYMBOL does not, it's useful to change
anyway. This action in no way indicates an admission that there is any
legal distinction between the two states, and in particular does not
indicate that the author believes that non-GPL modules may use symbols
exported with EXPORT_SYMBOL alone.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 16:33:03 +00:00
Artem Bityutskiy
9c74034f8f [MTD] return error code from get_mtd_device()
get_mtd_device() returns NULL in case of any failure. Teach it to return an
error code instead. Fix all users as well.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:06:38 +02:00
Artem Bityutskiy
9fe912cea3 [MTD] add get and put methods
This patch adds get_device() and put_device() methods to the MTD description
structure (struct mtd_info). These methods are called by MTD whenever the MTD
device is get or put. They are needed when the underlying driver is something
smarter then just flash chip driver, for example UBI.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:04:53 +02:00
Artem Bityutskiy
7799308f34 [MTD] add get_mtd_device_nm() function
This patch adds one more function to the MTD interface to make it possible to
open MTD devices by their names, not only numbers. This is very handy in many
situations. Also, MTD device number depend on load order and may vary, while
names are fixed.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:04:31 +02:00
Thomas Gleixner
29072b9607 [MTD] NAND: add subpage write support
Many SLC NANDs support up to 4 writes at one NAND page. Add support
of this feature.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:03:52 +02:00
Josh Boyer
f6a7ecb18d [MTD] add MTD_BLKDEVS Kconfig option
Add a MTD_BLKDEVS Kconfig option to cleanup the makefile a bit

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 16:58:15 +02:00
Yoichi Yuasa
eb6cf7bb71 [MTD] fix map probe name for cstm_mips_ixx
This patch has fixed name of map probe for cstm_mips_ixx.c

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 16:57:55 +02:00
Joakim Tjernlund
967bf623e9 [PATCH] Fix Intel/Sharp command set erase suspend bug
When we sleep and wait for a suspended operation to be resumed, go
back and check until it's ready -- don't just continue after the first
time we're woken. This can cause file system corruption.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-28 17:26:50 -08:00
Andrew Morton
ce1060494a [MTD] Tidy bitrev usage in rtc_from4.c
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 00:19:14 +00:00
Timo Lindhorst
fc02919499 [MTD] [NAND] fix ifdef option in nand_ecc.c
Fix up the config option in the #ifdef statements in nand_ecc.c

Signed-off-by: Timo Lindhorst <lindhors@linux.vnet.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 00:11:39 +00:00
David Woodhouse
28bdd4a72d [MTD] [NAND] Update CAFÉ driver interrupt handler prototype
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 00:04:59 +00:00
David Woodhouse
103e40f633 Merge git://git.infradead.org/~kmpark/onenand-mtd-2.6 2006-11-29 00:03:10 +00:00
Burman Yan
95b93a0cd4 [MTD] replace kmalloc+memset with kzalloc
Signed-off-by: Yan Burman <yan_952@hotmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 23:47:21 +00:00
Randy Dunlap
998a43e72d [MTD] Fix printk format warning in physmap. (resources again)
Fix printk format warning:
drivers/mtd/maps/physmap.c:93: warning: long long unsigned int format, long unsigned int arg (arg 2)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 23:40:46 +00:00
David Woodhouse
1aaaeabf36 Merge git://git.infradead.org/~dwmw2/cafe-2.6 2006-11-28 22:43:10 +00:00
Vitaly Wool
7014568bad [MTD] [NAND] remove len/ooblen confusion.
As was discussed between Ricard Wanderlöf, David Woodhouse, Artem 
Bityutskiy and me, the current API for reading/writing OOB is confusing. 

The thing that introduces confusion is the need to specify ops.len 
together with ops.ooblen for reads/writes that concern only OOB not data 
area. So, ops.len is overloaded: when ops.datbuf != NULL it serves to 
specify the length of the data read, and when ops.datbuf == NULL, it 
serves to specify the full OOB read length.

The patch inlined below is the slightly updated version of the previous 
patch serving the same purpose, but with the new Artem's comments taken 
into account.

Artem, BTW, thanks a lot for your valuable input!

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:39:03 +00:00
Richard Purdie
1918767299 [MTD] Allow variable block sizes in mtd_blkdevs
Currently, mtd_blkdevs enforces a block size of 512, even if the drivers
can seemingly request a different size. This patch fixes mtd_blkdevs so
block sizes other than 512 work correctly.

Signed-off-by: Richard Purdie <rpurdie@openedhand.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:27:47 +00:00
Dave Olsen
90afffc8bd [MTD] [MAPS] Support for BIOS flash chips on the nvidia ck804 southbridge
Add support for accessing BIOS flash chips connected to the NVIDIA ck804 southbridge.

Signed-off-by: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:25:27 +00:00