Граф коммитов

1713 Коммитов

Автор SHA1 Сообщение Дата
Martin K. Petersen e1defc4ff0 block: Do away with the notion of hardsect_size
Until now we have had a 1:1 mapping between storage device physical
block size and the logical block sized used when addressing the device.
With SATA 4KB drives coming out that will no longer be the case.  The
sector size will be 4KB but the logical block size will remain
512-bytes.  Hence we need to distinguish between the physical block size
and the logical ditto.

This patch renames hardsect_size to logical_block_size.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-22 23:22:54 +02:00
Jens Axboe e4b636366c Merge branch 'master' into for-2.6.31
Conflicts:
	drivers/block/hd.c
	drivers/block/mg_disk.c

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-22 20:25:34 +02:00
Peter Korsgaard dbf8c11f82 mtd_dataflash: unbreak erase support
Commit 5b7f3a50 (fix dataflash 64-bit divisions) unfortunately
introduced a typo. Erase addr and len were swapped in the pageaddr
calculation, causing the wrong sectors to get erased.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-05-18 08:36:21 -07:00
Artem Bityutskiy 95c9c1da79 UBI: minor serialization fix
The @vol->upd_marker should be protected by the @ubi->device_mutex,
otherwise 'paranoid_check_volume()' complains sometimes because
vol->upd_marker is 1 while vtbl_rec->upd_marker is 0.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:26 +03:00
Artem Bityutskiy d38dce5bfb UBI: do not panic if volume check fails
If a volume paranoid check fails, do not return an error
code to the caller, but just print error messages and go
forward. The primary reason for this is that it is difficult
to recover and cancel the operation at that stage.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:26 +03:00
Artem Bityutskiy cfcf0ec84b UBI: add dump_stack in checking code
I am experiencing an error in 'paranoid_check_volume()'. Add
dump_stack() there to make it easier to identify the reasons
of the error.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:26 +03:00
Artem Bityutskiy ffb6b7e4fd UBI: fix races in I/O debugging checks
When paranoid checs are enabled, the 'io_paral' test from the
'mtd-utils' package fails. The symptoms are:

UBI error: paranoid_check_all_ff: flash region at PEB 3973:512, length 15872 does not contain all 0xFF bytes
UBI error: paranoid_check_all_ff: paranoid check failed for PEB 3973
UBI: hex dump of the 512-16384 region

It turned out to be a bug in the checking function. Suppose there
are 2 tasks - A and B. Task A is the wear-levelling working
('wear_leveling_worker()'). It is reading the VID header to find
which LEB this PEB belongs to. Say, task A is reading header
of PEB X. Suppose PEB X is unmapped, and has no VID header.
Task B is trying to write to PEB X.

Task A: in 'ubi_io_read_vid_hdr()': reads the VID header from PEB X.
        The read data contain all 0xFF bytes.
Task B: writes VID header and some data to PEB X
Task A: assumes PEB X is empty, calls 'paranoid_check_all_ff()', which
        fails.

The solution for this problem is to make 'paranoid_check_all_ff()'
re-read the VID header, re-check it, and only if it is not there,
check the rest. This now implemented by the 'paranoid_check_empty()'
function.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:25 +03:00
Artem Bityutskiy 2cb81e218f UBI: small debugging code optimization
The @ubi->dbg_peb_buf is needed only when paranoid checks are
enabled, not when debugging in general is enabled.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:25 +03:00
Artem Bityutskiy e1cf7e6dd4 UBI: improve debugging messages
Various minor improvements to the debugging messages which
I found useful while hunting problems.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:25 +03:00
Artem Bityutskiy f089c0b28c UBI: re-name volumes_mutex to device_mutex
The mutex essencially protects the entire UBI device, so the
old @volumes_mutex name is a little misleading.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:28:24 +03:00
Artem Bityutskiy 383d08e045 UBI: remove redundant mutex
The @mult_mutex does not serve any purpose. We already have
@volumes_mutex and it is enough. The @volume mutex is pushed
down to the 'ubi_rename_volumes()', because we want first
to open all volumes in the exclusive mode, and then lock the
mutex, just like all other ioctl's (remove, re-size, etc) do.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-05-18 12:26:41 +03:00
Tejun Heo 9934c8c045 block: implement and enforce request peek/start/fetch
Till now block layer allowed two separate modes of request execution.
A request is always acquired from the request queue via
elv_next_request().  After that, drivers are free to either dequeue it
or process it without dequeueing.  Dequeue allows elv_next_request()
to return the next request so that multiple requests can be in flight.

Executing requests without dequeueing has its merits mostly in
allowing drivers for simpler devices which can't do sg to deal with
segments only without considering request boundary.  However, the
benefit this brings is dubious and declining while the cost of the API
ambiguity is increasing.  Segment based drivers are usually for very
old or limited devices and as converting to dequeueing model isn't
difficult, it doesn't justify the API overhead it puts on block layer
and its more modern users.

Previous patches converted all block low level drivers to dequeueing
model.  This patch completes the API transition by...

* renaming elv_next_request() to blk_peek_request()

* renaming blkdev_dequeue_request() to blk_start_request()

* adding blk_fetch_request() which is combination of peek and start

* disallowing completion of queued (not started) requests

* applying new API to all LLDs

Renamings are for consistency and to break out of tree code so that
it's apparent that out of tree drivers need updating.

[ Impact: block request issue API cleanup, no functional change ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mike Miller <mike.miller@hp.com>
Cc: unsik Kim <donari75@gmail.com>
Cc: Paul Clements <paul.clements@steeleye.com>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Laurent Vivier <Laurent@lvivier.info>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Stefan Weinhuber <wein@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-11 09:52:18 +02:00
Tejun Heo 1498ada7a8 mtd_blkdevs: dequeue in-flight request
mtd_blkdevs processes requests one-by-one synchronously from a kthread
and can be easily converted to dequeueing model.  Convert it.

[ Impact: dequeue in-flight request ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-11 09:52:17 +02:00
Tejun Heo 1011c1b9f2 block: blk_rq_[cur_]_{sectors|bytes}() usage cleanup
With the previous changes, the followings are now guaranteed for all
requests in any valid state.

* blk_rq_sectors() == blk_rq_bytes() >> 9
* blk_rq_cur_sectors() == blk_rq_cur_bytes() >> 9

Clean up accessor usages.  Notable changes are

* nbd,i2o_block: end_all used instead of explicit byte count
* scsi_lib: unnecessary conditional on request type removed

[ Impact: cleanup ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Paul Clements <paul.clements@steeleye.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-11 09:50:55 +02:00
Tejun Heo 83096ebf12 block: convert to pos and nr_sectors accessors
With recent cleanups, there is no place where low level driver
directly manipulates request fields.  This means that the 'hard'
request fields always equal the !hard fields.  Convert all
rq->sectors, nr_sectors and current_nr_sectors references to
accessors.

While at it, drop superflous blk_rq_pos() < 0 test in swim.c.

[ Impact: use pos and nr_sectors accessors ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Tested-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Acked-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Acked-by: Mike Miller <mike.miller@hp.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Eric Moore <Eric.Moore@lsi.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Paul Clements <paul.clements@steeleye.com>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Dario Ballabio <ballabio_dario@emc.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: unsik Kim <donari75@gmail.com>
Cc: Laurent Vivier <Laurent@lvivier.info>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-11 09:50:54 +02:00
Al Viro 6f5bbff9a1 Convert obvious places to deactivate_locked_super()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-09 10:49:40 -04:00
Linus Torvalds 621c2559c1 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  mtd: fix timeout in M25P80 driver
  mtd: Bug in m25p80.c during whole-chip erase
  mtd: expose subpage size via sysfs
  mtd: mtd in mtd_release is unused without CONFIG_MTD_CHAR
2009-05-08 17:00:41 -07:00
Peter Horton cd1a6de7d4 mtd: fix timeout in M25P80 driver
Extend erase timeout in M25P80 SPI Flash driver.

The M25P80 drivers fails erasing sectors on a M25P128 because the ready
wait timeout is too short. Change the timeout from a simple loop count to a
suitable number of seconds.

Signed-off-by: Peter Horton <zero@colonel-panic.org>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-05-08 13:51:53 +01:00
Steven A. Falco 3f33b0aaac mtd: Bug in m25p80.c during whole-chip erase
There is a logic error in "whole chip erase" for the m25p80 family.  If
the whole device is successfully erased, erase_chip() will return 0, and
the code will fall through to the "else" clause, and do sector-by-sector
erase in addition to the whole-chip erase.  This patch corrects that.

Also, the MAX_READY_WAIT_COUNT is insufficient for an m25p16 connected
to a 400 MHz powerpc.  Increasing it allows me to successfully program
the device on my board.

Signed-off-by: Steven A. Falco <sfalco@harris.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-29 06:49:28 +01:00
Tejun Heo f06d9a2b52 block: replace end_request() with [__]blk_end_request_cur()
end_request() has been kept around for backward compatibility;
however, it's about time for it to go away.

* There aren't too many users left.

* Its use of @updtodate is pretty confusing.

* In some cases, newer code ends up using mixture of end_request() and
  [__]blk_end_request[_all](), which is way too confusing.

So, add [__]blk_end_request_cur() and replace end_request() with it.
Most conversions are straightforward.  Noteworthy ones are...

* paride/pcd: next_request() updated to take 0/-errno instead of 1/0.

* paride/pf: pf_end_request() and next_request() updated to take
  0/-errno instead of 1/0.

* xd: xd_readwrite() updated to return 0/-errno instead of 1/0.

* mtd/mtd_blkdevs: blktrans_discard_request() updated to return
  0/-errno instead of 1/0.  Unnecessary local variable res
  initialization removed from mtd_blktrans_thread().

[ Impact: cleanup ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Joerg Dorchain <joerg@dorchain.net>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Laurent Vivier <Laurent@lvivier.info>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: unsik Kim <donari75@gmail.com>
2009-04-28 07:37:36 +02:00
Alan Cox 67cd724f6d cafe_nand: Fix warning
Wrong types on IRQ handler

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-24 07:52:08 -07:00
Artem Bityutskiy e769354895 mtd: expose subpage size via sysfs
MTD has got sysfs support in 2.6.30-rc1. But subpage size is not
exposed there - do this.

UBI utilities badly need this parameter. At the moment there is
no way to get subpage size - ioctls do not return it. And we
just got sysfs support, so we can easilly extend it with this
additional parameter.

This can be merged late in the development cycle because:
1. sysfs support has been just added - there are no users for
   it so far, even.
2. UBI utilities really need this parameter, and it is better
   not to delay this.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-19 09:12:49 +01:00
Denis V. Lunev 2fdb11449c mtd: mtd in mtd_release is unused without CONFIG_MTD_CHAR
drivers/mtd/mtdcore.c: In function 'mtd_release':
drivers/mtd/mtdcore.c:51: warning: unused variable 'mtd'

[akpm: make it actually build]
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-19 08:59:17 +01:00
Linus Torvalds 38d9aefb5c Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
  UBI: add fsync capability
2009-04-06 15:00:00 -07:00
Linus Torvalds 22ae77bc7a Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (53 commits)
  [MTD] struct device - replace bus_id with dev_name(), dev_set_name()
  [MTD] [NOR] Fixup for Numonyx M29W128 chips
  [MTD] mtdpart: Make ecc_stats more realistic.
  powerpc/85xx: TQM8548: Update DTS file for multi-chip support
  powerpc: NAND: FSL UPM: document new bindings
  [MTD] [NAND] FSL-UPM: Add wait flags to support board/chip specific delays
  [MTD] [NAND] FSL-UPM: add multi chip support
  [MTD] [NOR] Add device parent info to physmap_of
  [MTD] [NAND] Add support for NAND on the Socrates board
  [MTD] [NAND] Add support for 4KiB pages.
  [MTD] sysfs support should not depend on CONFIG_PROC_FS
  [MTD] [NAND] Add parent info for CAFÉ controller
  [MTD] support driver model updates
  [MTD] driver model updates (part 2)
  [MTD] driver model updates
  [MTD] [NAND] move gen_nand's probe function to .devinit.text
  [MTD] [MAPS] move sa1100 flash's probe function to .devinit.text
  [MTD] fix use after free in register_mtd_blktrans
  [MTD] [MAPS] Drop now unused sharpsl-flash map
  [MTD] ofpart: Check name property to determine partition nodes.
  ...

Manually fix trivial conflict in drivers/mtd/maps/Makefile
2009-04-06 14:56:26 -07:00
Kay Sievers 30bbf14067 [MTD] struct device - replace bus_id with dev_name(), dev_set_name()
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:24:02 -07:00
Darius Augulis 504a3e7220 [MTD] [NOR] Fixup for Numonyx M29W128 chips
Prevent NUMONYX M29W128G memories from using write buffer,
because it doesn't work properly.

Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:23:26 -07:00
Yauhen Kharuzhy d8877f191e [MTD] mtdpart: Make ecc_stats more realistic.
In the existing implementation, ecc_stats fields are incremented only by
one, regardless of master mtd errors number. For example, if there are N
errors were corrected by ECC, partition ecc_stats.corrected will be
incremented by one.

This commit changes simple increment to sum of old value and parent mtd
error count.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:22:28 -07:00
Wolfgang Grandegger ade92a636f [MTD] [NAND] FSL-UPM: Add wait flags to support board/chip specific delays
The NAND flash on the TQM8548_BE modules requires a short delay after
running the UPM pattern. The TQM8548_BE requires a further short delay
after writing out a buffer. Normally the R/B pin should be checked, but
it's not connected on the TQM8548_BE. The existing driver uses similar
fixed delay points. To manage these extra delays in a more general way,
I introduced the "fsl,ump-wait-flags" property allowing the board-
specific driver to specify various types of extra delay.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:17:59 -07:00
Wolfgang Grandegger b6e0e8c077 [MTD] [NAND] FSL-UPM: add multi chip support
This patch adds support for multi-chip NAND devices to the FSL-UPM
driver. This requires support for multiple GPIOs for the RNB pins.
The NAND chips are selected through address lines defined by the
FDT property "fsl,upm-addr-line-cs-offsets".

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:17:09 -07:00
David Woodhouse db99a55231 [MTD] [NOR] Add device parent info to physmap_of
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:15:42 -07:00
Wolfgang Grandegger 1b578193af [MTD] [NAND] Add support for NAND on the Socrates board
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:15:27 -07:00
Thomas Gleixner 81ec5364a5 [MTD] [NAND] Add support for 4KiB pages.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 07:01:56 -07:00
Linus Torvalds cab4e4c43f Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param:
  module: use strstarts()
  strstarts: helper function for !strncmp(str, prefix, strlen(prefix))
  arm: allow usage of string functions in linux/string.h
  module: don't use stop_machine on module load
  module: create a request_module_nowait()
  module: include other structures in module version check
  module: remove the SHF_ALLOC flag on the __versions section.
  module: clarify the force-loading taint message.
  module: Export symbols needed for Ksplice
  Ksplice: Add functions for walking kallsyms symbols
  module: remove module_text_address()
  module: __module_address
  module: Make find_symbol return a struct kernel_symbol
  kernel/module.c: fix an unused goto label
  param: fix charp parameters set via sysfs

Fix trivial conflicts in kernel/extable.c manually.
2009-04-05 10:30:21 -07:00
Kevin Cernekee 45b0907614 [MTD] sysfs support should not depend on CONFIG_PROC_FS
Move the driver model init code out of the "#ifdef CONFIG_PROC_FS"
block.

Tested with both values of CONFIG_PROC_FS .  Tested with CONFIG_MTD=m .

Issue was reported here: http://lkml.org/lkml/2009/4/4/107

Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-04 22:52:08 +01:00
David Woodhouse c451c7c4c9 [MTD] [NAND] Add parent info for CAFÉ controller
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-04 15:27:45 +01:00
David Brownell 87f39f0493 [MTD] support driver model updates
Follow-on patch to the previous driver model patch for the MTD
framework.  This one makes various MTD drivers connect to the
driver model tree, so /sys/devices/virtual/mtd/* nodes are no
longer present ... mostly drivers used on boards I have handy.

Based on a patch from Kay Sievers.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-04 14:32:59 +01:00
Kevin Cernekee 694bb7fc19 [MTD] driver model updates (part 2)
1) Add more sysfs attributes: flags, size, erasesize, writesize,
   oobsize, numeraseregions, name

2) Move core_initcall() code into init_mtd().  The original approach
   does not work if CONFIG_MTD=m .

3) Add device_unregister() in del_mtd_device() so that devices get
   removed from sysfs as each driver is unloaded.

Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-04 14:32:39 +01:00
David Brownell 1f24b5a8ec [MTD] driver model updates
Update driver model support in the MTD framework, so it fits
better into the current udev-based hotplug framework:

 - Each mtd_info now has a device node.  MTD drivers should set
   the dev.parent field to point to the physical device, before
   setting up partitions or otherwise declaring MTDs.

 - Those device nodes always map to /sys/class/mtdX device nodes,
   which no longer depend on MTD_CHARDEV.

 - Those mtdX sysfs nodes have a "starter set" of attributes;
   it's not yet sufficient to replace /proc/mtd.

 - Enabling MTD_CHARDEV provides /sys/class/mtdXro/ nodes and the
   /sys/class/mtd*/dev attributes (for udev, mdev, etc).

 - Include a MODULE_ALIAS_CHARDEV_MAJOR macro.  It'll work with
   udev creating the /dev/mtd* nodes, not just a static rootfs.

So the sysfs structure is pretty much what you'd expect, except
that readonly chardev nodes are a bit quirky.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-04 14:29:07 +01:00
Linus Torvalds 811158b147 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)
  trivial: Update my email address
  trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
  trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h
  trivial: Fix misspelling of "Celsius".
  trivial: remove unused variable 'path' in alloc_file()
  trivial: fix a pdlfush -> pdflush typo in comment
  trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL
  trivial: wusb: Storage class should be before const qualifier
  trivial: drivers/char/bsr.c: Storage class should be before const qualifier
  trivial: h8300: Storage class should be before const qualifier
  trivial: fix where cgroup documentation is not correctly referred to
  trivial: Give the right path in Documentation example
  trivial: MTD: remove EOL from MODULE_DESCRIPTION
  trivial: Fix typo in bio_split()'s documentation
  trivial: PWM: fix of #endif comment
  trivial: fix typos/grammar errors in Kconfig texts
  trivial: Fix misspelling of firmware
  trivial: cgroups: documentation typo and spelling corrections
  trivial: Update contact info for Jochen Hein
  trivial: fix typo "resgister" -> "register"
  ...
2009-04-03 15:24:35 -07:00
Uwe Kleine-König 9d63287a46 [MTD] [NAND] move gen_nand's probe function to .devinit.text
A pointer to plat_nand_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Hamish Moffatt <hamish@cloud.net.au>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-03 10:38:05 +01:00
Uwe Kleine-König f0b1e58924 [MTD] [MAPS] move sa1100 flash's probe function to .devinit.text
A pointer to sa1100_mtd_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Pitre <nico@marvell.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-03 10:37:18 +01:00
Marcin Slusarz 2cf3a11494 [MTD] fix use after free in register_mtd_blktrans
Reported-by: Dan Carpenter <error27@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-03 10:36:23 +01:00
Russell King 67a52bb90b [ARM] fix build-breaking 7a192ec commit
The commit:

    platform driver: fix incorrect use of 'platform_bus_type' with 'struct device_driver'

contains this:

-static int __exit pxa2xx_flash_remove(struct device *dev)
+static int __exit pxa2xx_flash_remove(struct platform_device *dev)
...
-       .remove         = __exit_p(pxa2xx_flash_remove),
+       .remove         = __devexit_p(pxa2xx_flash_remove),

which leads to the following build error:

`pxa2xx_flash_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o

This is not the only instance of it in this patch - all __exit_p's
touched by this patch have been converted to __devexit_p's without
regard to the original function.

Let's revert this change and, if we are going to convert functions
to be __devexit/__devinit, lets have that as a _separate_ patch doing
just that change.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-02 23:23:43 +01:00
Rusty Russell a6e6abd575 module: remove module_text_address()
Impact: Replace and remove risky (non-EXPORTed) API

module_text_address() returns a pointer to the module, which given locking
improvements in module.c, is useless except to test for NULL:

1) If the module can't go away, use __module_text_address.
2) Otherwise, just use is_module_text_address().

Cc: linux-mtd@lists.infradead.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-03-31 13:05:32 +10:30
Hannes Eder 23d4249491 trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
Fix this sparse warnings:
  drivers/mtd/tests/mtd_oobtest.c:139:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:192:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:219:41: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:284:25: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:525:25: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:545:25: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:569:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:589:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:613:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:633:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:673:41: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_oobtest.c:701:33: warning: Using plain integer as NULL pointer
  drivers/mtd/tests/mtd_readtest.c:74:41: warning: Using plain integer as NULL pointer

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30 15:22:04 +02:00
Niels de Vos 2a7af8ca8b trivial: MTD: remove EOL from MODULE_DESCRIPTION
There is no need to have a "\n" on a MODULE_DESCRIPTION, remove it.

Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30 15:22:02 +02:00
Linus Torvalds 0fe41b8982 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (422 commits)
  [ARM] 5435/1: fix compile warning in sanity_check_meminfo()
  [ARM] 5434/1: ARM: OMAP: Fix mailbox compile for 24xx
  [ARM] pxa: fix the bad assumption that PCMCIA sockets always start with 0
  [ARM] pxa: fix Colibri PXA300 and PXA320 LCD backlight pins
  imxfb: Fix TFT mode
  i.MX21/27: remove ifdef CONFIG_FB_IMX
  imxfb: add clock support
  mxc: add arch_reset() function
  clkdev: add possibility to get a clock based on the device name
  i.MX1: remove fb support from mach-imx
  [ARM] pxa: build arch/arm/plat-pxa/mfp.c only when PXA3xx or ARCH_MMP defined
  Gemini: Add support for Teltonika RUT100
  Gemini: gpiolib based GPIO support v2
  MAINTAINERS: add myself as Gemini architecture maintainer
  ARM: Add Gemini architecture v3
  [ARM] OMAP: Fix compile for omap2_init_common_hw()
  MAINTAINERS: Add myself as Faraday ARM core variant maintainer
  ARM: Add support for FA526 v2
  [ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.h
  [ARM] collie: fix two minor formatting nits
  ...
2009-03-28 14:03:14 -07:00
Russell King ed40d0c472 Merge branch 'origin' into devel
Conflicts:
	sound/soc/pxa/pxa2xx-i2s.c
2009-03-28 20:29:51 +00:00
Ingo Molnar 82268da1b1 Merge branch 'linus' into percpu-cpumask-x86-for-linus-2
Conflicts:
	arch/sparc/kernel/time_64.c
	drivers/gpu/drm/drm_proc.c

Manual merge to resolve build warning due to phys_addr_t type change
on x86:

	drivers/gpu/drm/drm_info.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-28 04:26:01 +01:00
Linus Torvalds 3ae5080f4c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (37 commits)
  fs: avoid I_NEW inodes
  Merge code for single and multiple-instance mounts
  Remove get_init_pts_sb()
  Move common mknod_ptmx() calls into caller
  Parse mount options just once and copy them to super block
  Unroll essentials of do_remount_sb() into devpts
  vfs: simple_set_mnt() should return void
  fs: move bdev code out of buffer.c
  constify dentry_operations: rest
  constify dentry_operations: configfs
  constify dentry_operations: sysfs
  constify dentry_operations: JFS
  constify dentry_operations: OCFS2
  constify dentry_operations: GFS2
  constify dentry_operations: FAT
  constify dentry_operations: FUSE
  constify dentry_operations: procfs
  constify dentry_operations: ecryptfs
  constify dentry_operations: CIFS
  constify dentry_operations: AFS
  ...
2009-03-27 16:23:12 -07:00
Sukadev Bhattiprolu a3ec947c85 vfs: simple_set_mnt() should return void
simple_set_mnt() is defined as returning 'int' but always returns 0.
Callers assume simple_set_mnt() never fails and don't properly cleanup if
it were to _ever_ fail.  For instance, get_sb_single() and get_sb_nodev()
should:

        up_write(sb->s_unmount);
        deactivate_super(sb);

if simple_set_mnt() fails.

Since simple_set_mnt() never fails, would be cleaner if it did not
return anything.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-03-27 14:44:03 -04:00
Ingo Molnar 6e15cf0486 Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
Conflicts:
	arch/parisc/kernel/irq.c
	arch/x86/include/asm/fixmap_64.h
	arch/x86/include/asm/setup.h
	kernel/irq/handle.c

Semantic merge:
        arch/x86/include/asm/fixmap.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-27 17:28:43 +01:00
Linus Torvalds 0c93ea4064 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (61 commits)
  Dynamic debug: fix pr_fmt() build error
  Dynamic debug: allow simple quoting of words
  dynamic debug: update docs
  dynamic debug: combine dprintk and dynamic printk
  sysfs: fix some bin_vm_ops errors
  kobject: don't block for each kobject_uevent
  sysfs: only allow one scheduled removal callback per kobj
  Driver core: Fix device_move() vs. dpm list ordering, v2
  Driver core: some cleanup on drivers/base/sys.c
  Driver core: implement uevent suppress in kobject
  vcs: hook sysfs devices into object lifetime instead of "binding"
  driver core: fix passing platform_data
  driver core: move platform_data into platform_device
  sysfs: don't block indefinitely for unmapped files.
  driver core: move knode_bus into private structure
  driver core: move knode_driver into private structure
  driver core: move klist_children into private structure
  driver core: create a private portion of struct device
  driver core: remove polling for driver_probe_done(v5)
  sysfs: reference sysfs_dirent from sysfs inodes
  ...

Fixed conflicts in drivers/sh/maple/maple.c manually
2009-03-26 11:17:04 -07:00
Linus Torvalds 928a726b0e Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits)
  sh: add support for SMSC Polaris platform
  sh: fix the HD64461 level-triggered interrupts handling
  sh: sh-rtc wakeup support
  sh: sh-rtc invalid time rework
  sh: sh-rtc carry interrupt rework
  sh: disallow kexec virtual entry
  sh: kexec jump: fix for ftrace.
  sh: kexec: Drop SR.BL bit toggling.
  sh: add kexec jump support
  sh: rework kexec segment code
  sh: simplify kexec vbr code
  sh: Flush only the needed range when unmapping a VMA.
  sh: Update debugfs ASID dumping for 16-bit ASID support.
  sh: tlb-pteaex: Kill off legacy PTEA updates.
  sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.
  sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp
  sh: espt-giga board support
  sh: dma: Make G2 DMA configurable.
  sh: dma: Make PVR2 DMA configurable.
  sh: Move IRQ multi definition of DMAC to defconfig
  ...
2009-03-26 11:11:23 -07:00
Russell King 8937b7349c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel 2009-03-25 18:31:35 +00:00
Russell King 997302259f [ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-25 10:21:35 +00:00
Dmitry Eremin-Solenikov 61dd7eb876 [MTD] [MAPS] Drop now unused sharpsl-flash map
Now as all PXA Zaurii are converted to use the physmap map,
drop the sharpsl-flash map completely.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-25 01:09:19 +00:00
Ming Lei 7a192ec334 platform driver: fix incorrect use of 'platform_bus_type' with 'struct device_driver'
This patch fixes the bug reported in
	http://bugzilla.kernel.org/show_bug.cgi?id=11681.

"Lots of device drivers register a 'struct device_driver' with
the '.bus' member set to '&platform_bus_type'. This is wrong,
since the platform_bus functions expect the 'struct device_driver'
to be wrapped up in a 'struct platform_driver' which provides
some additional callbacks (like suspend_late, resume_early).
The effect may be that platform_suspend_late() uses bogus data
outside the device_driver struct as a pointer pointer to the
device driver's suspend_late() function or other hard to
reproduce failures."(Lothar Wassmann)

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:38:25 -07:00
Kay Sievers c36f1e3301 mtd: struct device - replace bus_id with dev_name(), dev_set_name()
Cc: dwmw2@infradead.org
Cc: linux-mtd@lists.infradead.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
2009-03-24 16:38:21 -07:00
Benjamin Krill 4b08e149c0 [MTD] ofpart: Check name property to determine partition nodes.
SLOF has a further node which could not be evaluated
by the current routine. The current routine returns
because the node hasn't the required reg property. As
fix this patch adds a check to determine the partition
child nodes. If the node is not a partition the number
of total partitions will be decreased and loop continues
with the next nodes.

Signed-off-by: Benjamin Krill <ben@codiert.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-24 14:04:20 +00:00
Yoshihiro Shimoda c0e6616ae6 [MTD] [NAND] sh_flctl: fix hardware ecc handling for 2048 byte page
Signed-off-by: Jeremy Baker <Jeremy.Baker@renesas.com>
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-24 09:39:46 +00:00
David Howells 6e232cfce3 NOMMU: Add support for direct mapping through mtdconcat if possible
Add support for direct mapping through mtdconcat, if possible, by attaching the
samebacking_dev_info structure to the master.

It has some restrictions:

 (1) It won't permit direct mapping of concatenated devices that have differing
     BDIs.

 (2) It doesn't support maps that span the 'gap' between devices, although it
     possibly could if the devices spanned across return compatible
     (ie. contiguous) addresses from their get_unmapped_area() ops.

Signed-off-by: Gavin Lambert <gavinl@compacsort.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-24 09:01:08 +00:00
David Howells 402d326519 NOMMU: Present backing device capabilities for MTD chardevs
Present backing device capabilities for MTD character device files to allow
NOMMU mmap to do direct mapping where possible.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-24 09:00:19 +00:00
Kyungmin Park 9ce969082e [MTD] [OneNAND] Add write-while-program support
OneNAND write-while-program method of writing improves performance,
compared with ordinary writes, by transferring data to OneNAND's
RAM buffers atthe same time as programming the NAND core.

When writing several NAND pages at a time, an improvement of
12% to 25% is seen.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-23 15:14:46 +00:00
Adrian Hunter a29f280b73 [MTD] [OneNAND] omap2: panic_write may be in an interrupt context
panic_write may read in an interrupt context.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-23 13:13:55 +00:00
Atsushi Nemoto 17b536cc43 [MTD] mtdpart: Make all partition parsers return allocated array
Currently redboot and afx parser return allocated mtd_partition array
and cmdlinepart and ar7 return persistent array.

This patch make cmdlinepart and ar7 also return allocated array, so
that all users can free it regardless of parser type.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:55:17 +00:00
Yegor Yefremov bd50a0ffca [MTD] [CHIPS] Add JEDEC probe support for the SST 39VF3201 flash chip
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:50:26 +00:00
Adrian Hunter 48ec00ac89 [MTD] mtdoops: fix a bit of spin lock usage
- do not leave spin lock locked
- initialise spin lock

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:39:25 +00:00
Adrian Hunter e2a0f25b4f [MTD] mtdoops: allow MTD selection by name
MTD's have both an index number and a name.  Formerly,
the MTD selected for mtdoops was done only by index
number.  With this patch, a name can be used instead.

For example, the kernel command line:

	console=ttyMTD5

selects MTD 5 for mtdoops.  But now this is also possible:

	console=ttyMTD,log

which selects the MTD named "log" for mtdoops.

This has the advantage that partitions can be added or
removed that would affect the MTD index number but not the
name, without having to then change the kernel command line.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:38:58 +00:00
Mike Rapoport f271049e20 [MTD] [NAND] pxa3xx_nand: add ability to keep controller settings defined by OBM/bootloader
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:37:44 +00:00
Mike Rapoport 82a72d108b [MTD] [NAND] pxa3xx_nand: allow building as module
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:37:33 +00:00
Mike Rapoport b2ed368055 [MTD] [NAND] pxa3xx_nand: use resource_size instead of 'r->end - r->start + 1'
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:37:16 +00:00
Scott James Remnant e7f521636a [MTD] Auto-load nftl module when device opened.
The nftl module is missing the block-major-93-* alias that would cause
it to be auto-loaded when a nftl of that type is opened.  This patch
adds the alias.

Signed-off-by: Scott James Remnant <scott@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:34:00 +00:00
Scott James Remnant 90160e13b0 [MTD] Auto-load mtdchar module when device opened.
The mtdchar module is missing the char-major-90-* alias that would cause
it to be auto-loaded when a device of that type is opened.  This patch
adds the alia..

Signed-off-by: Scott James Remnant <scott@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:33:44 +00:00
Graff Yang 6ac15e92df [MTD] [CHIPS] cfi_cmdset_0001.c: Fix a bug in inval_cache_and_wait_for_operation().
If the inval_cache_and_wait_for_operation() is re-entered by write operation when erase
operation is in progress, the chip->erase_suspended will be cleared, this cause the erase
timeo is not reset and will result time out error for erase.

Signed-off-by: Graff Yang <graff.yang@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:32:17 +00:00
Atsushi Nemoto 610f75e74b [MTD] RBTX4939 map driver
This is a map driver for NOR flash chips on RBTX4939 board.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Bächle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:11:20 +00:00
Atsushi Nemoto 64fb65baff [MTD] TXx9 SoC NAND Flash Memory Controller driver
This patch adds support for the integrated NAND flash controller of the
TXx9 family.

Once upon a time there were tx4925ndfmc and tx4938ndfmc driver.  They
were removed due to bitrot in 2005.
This new driver is completely rewritten based on a driver in CELF patch
archive.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Bächle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 18:10:48 +00:00
David Brownell a4b6d516a6 [MTD] partitioning utility predicates
Move mtd_has_partitions() and mtd_has_cmdlinepart() inlines from a
DaVinci-specific driver to the <linux/mtd/partitions.h> header.

Use those to eliminate #ifdefs in two drivers which had their own
definitions of mtd_has_partitions().

Quite a lot of other MTD drivers could benefit from using use one or both
of these to remove #ifdeffery.  Maybe some Janitors would like to help.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 13:16:44 +00:00
David Brownell 7ed8c7d440 [MTD] we don't need no misc devices
Remove <linux/miscdevice.h> from various drivers which don't actually use
any of its contents.  There are still a number of these left in
arch-specific bits of the tree.

(Found by diffing results of "grep -rl" for linux/miscdevice.h and for
misc_register, examining the differences, and verifying removals with a
build test.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 13:16:26 +00:00
Kevin Hilman d5e539ad7d [MTD] [NAND] davinci: drop usage of cpu_is_* macro
Usage of davinci-specific cpu_is macros is not allowed in drivers.
These options should be passed in through platform_data.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 13:15:55 +00:00
David Brownell 374555aeb6 [MTD] [NAND] fix broken debug messages
Fix incorrect debug messages (*write* not read); someone committed some
cut'n'paste bugs.   There might be more, I only noticed these since I was
looking for nand_read usage and landed in some very wrong functions.

IMO all MTD debugging message framework is goofed, anyway.  It uses
"DEBUG" in a way that's incompatible with usage most everywhere else in
the kernel, and which prevents normal pr_dbg() and dev_dbg() calls from
working right.

[True. It predates those by a long way, and should probably be updated 
to use them. dwmw2]

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 13:15:17 +00:00
David Brownell ff4569c752 [MTD] [NAND] davinci_nand driver
This is a device driver for the NAND flash controller found on the various
DaVinci family chips.  It handles up to four SoC chipselects, and some
flavors of secondary chipselect (e.g.  based on upper bits of the address
bus) as used with some multichip packages.  (Including the 2 GiB chips
used on some TI devel boards.)

The 1-bit ECC hardware is supported (3 bytes ECC per 512 bytes data); but
not yet the newer 4-bit ECC (10 bytes ECC per 512 bytes data), as
available on chips like the DM355 or OMAP-L137 and needed with the more
error-prone MLC NAND chips.

This is a cleaned-up version of code that's been in use for several years
now; sanity checked with the new drivers/mtd/tests.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 12:32:19 +00:00
David Brownell 52ff49df7f [MTD] [NAND] fix "raw" reads with ECC syndrome layouts
The syndrome based page read/write routines store ECC, and possibly other
"OOB" data, right after each chunk of ECC'd data.  With ECC chunk size of
512 bytes and a large page (2KiB) NAND, the layout is:

  data-0 OOB-0 data-1 OOB-1 data-2 OOB-2 data-3 OOB-3 OOB-leftover

Where OOBx is (prepad, ECC, postpad).  However, the current "raw" routines
use a traditional layout -- data OOB, disregarding the prepad and postpad
values -- so when they're used with that type of ECC hardware, those calls
mix up the data and OOB.  Which means, in particular, that bad block
tables won't be found on startup, with data corruption and related chaos
ensuing.

The current syndrome-based drivers in mainline all seem to use one chunk
per page; presumably they haven't noticed such bugs.

Fix this, by adding read/write page_raw_syndrome() routines as siblings of
the existing non-raw routines; "raw" just means to bypass the ECC
computations, not change data and OOB layout.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 12:27:43 +00:00
Mike Frysinger bfc492571e [MTD] [NAND] Blackfin NFC Driver: drop pointless casts with set_dma_callback()
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 12:18:04 +00:00
Mike Frysinger 8d30cab069 [MTD] [NAND] Blackfin NFC Driver: mark bf5xx_nand_add_partition() as __devinit
The bf5xx_nand_add_partition() func is only called by __devinit functions,
so put it into the __devinit section as well

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 12:17:43 +00:00
Mike Frysinger 08d2503ecc [MTD] [NAND] Blackfin NFC Driver: do not clobber DMAC1_PERIMUX
Only set DMAC1_PERIMUX once we have requested and been granted the dma
channel to prevent breaking other peripherals in the error case

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20 12:16:24 +00:00
Russell King 97fb44eb6b Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel
Conflicts:

	arch/arm/mach-at91/gpio.c
2009-03-13 21:44:51 +00:00
Sascha Hauer e65fb0099f [ARM] MXC: remove _clk suffix from clock names
The context makes it clear already that these are clocks, so there's
no need for such a suffix. This patch only changes the clocks actually
used in the tree. The remaining clocks are renamed in the subsequent
architecture specific patches.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13 10:33:48 +01:00
Geert Uytterhoeven f507cd2203 ps3/block: Replace mtd/ps3vram by block/ps3vram
Convert the PS3 Video RAM Storage Driver from an MTD driver to a plain block
device driver.

The ps3vram driver exposes unused video RAM on the PS3 as a block device
suitable for storage or swap.  Fast data transfer is achieved using a local
cache in system RAM and DMA transfers via the GPU.

The new driver is ca. 50% faster for reading, and ca. 10% for writing.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-03-13 16:07:19 +11:00
Atsushi Nemoto d58ab5cf09 mtd: physmap: fix NULL pointer dereference in error path
commit e480814f13 ("[MTD] [MAPS] physmap:
fix wrong free and del_mtd_{partition,device}") introduces a NULL pointer
dereference in physmap_flash_remove when called from the error path in
physmap_flash_probe (if map_probe failed).

Call del_mtd_{partition,device} only if info->cmtd was not NULL.

Reported-by: pHilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10 15:55:11 -07:00
Will Newton 229cc58ba2 mtd_dataflash: fix probing of AT45DB321C chips.
Commit 771999b65f ("[MTD] DataFlash: bugfix,
binary page sizes now handled") broke support for probing AT45DB321C flash
chips.  These chips do not support the "page size" status bit, so if we
match the JEDEC id return early.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Will Newton <will.newton@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10 15:55:11 -07:00
Adrian McMenamin 47a72688fa mtd: flash mapping support for Dreamcast VMU.
This patch adds support for the Sega Dreamcast visual memory unit as a
flash mapping. It requires changes in the maple bus driver (posted
separately) to support block reads and writes.

The VMU is a 'smart' flash device, with a built-in 8-bit controller -
for instance there is an erase before a write but it is hidden from the
user. But the device's overall behaviour means it works well with the
mtd layer and it is appropriate to add it as an mtd mapping.

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 18:03:02 +09:00
Eric Miao b74d196908 [ARM] pxa: move pxa2xx chip selects definitions out of pxa-regs.h
The definitions of PXA_CS<x>_PHYS are really PXA2xx specific and should
be moved out of pxa-regs.h. As an illustration, the PXA3xx static chip
selects definitions are added into pxa3xx-regs.h.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09 21:22:40 +08:00
Eric Miao 7ebc8d56f4 [ARM] pxa: move DMA registers definitions into <mach/dma.h>
1. Driver code where pxa_request_dma() is called will most likely
   reference DMA registers as well,  and it is really unnecessary
   to include pxa-regs.h just for this. Move the definitions into
   <mach/dma.h> and make relevant drivers include it instead of
   <mach/pxa-regs.h>.

2. Introduce DMAC_REGS_VIRT as the virtual address base for these
   DMA registers. This allows later processors to re-use the same
   IP while registers may start at different I/O address.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09 21:22:36 +08:00
Linus Torvalds f41bf2ab99 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] fix lots of ARM __devexit sillyness
  [ARM] 5417/1: Set the correct cacheid for ARMv6 CPUs with ARMv7 style MMU
  [ARM] 5416/1: Use unused address in v6_early_abort
  [ARM] 5411/1: S3C64XX: Fix EINT unmask
  [ARM] at91: fix for Atmel AT91 powersaving
  [ARM] RiscPC: Fix etherh oops
2009-03-03 14:12:41 -08:00
Russell King bdf602bd73 [ARM] fix lots of ARM __devexit sillyness
`iop_adma_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o
`mv_xor_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o
`mv64xxx_i2c_unmap_regs' referenced in section `.devinit.text' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o
`mv64xxx_i2c_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o
`orion_nand_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o
`pxafb_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-03 21:04:04 +00:00
Ingo Molnar 55f2b78995 Merge branch 'x86/urgent' into x86/pat 2009-03-01 12:47:58 +01:00
Linus Torvalds 221be177e6 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD] [MAPS] Remove MODULE_DEVICE_TABLE() from ck804rom driver.
  [JFFS2] fix mount crash caused by removed nodes
  [JFFS2] force the jffs2 GC daemon to behave a bit better
  [MTD] [MAPS] blackfin async requires complex mappings
  [MTD] [MAPS] blackfin: fix memory leak in error path
  [MTD] [MAPS] physmap: fix wrong free and del_mtd_{partition,device}
  [MTD] slram: Handle negative devlength correctly
  [MTD] map_rom has NULL erase pointer
  [MTD] [LPDDR] qinfo_probe depends on lpddr
2009-02-26 14:45:57 -08:00
David Woodhouse b50be33e42 [MTD] [MAPS] Remove MODULE_DEVICE_TABLE() from ck804rom driver.
We really don't want the BIOS flash mapping hacks to get automatically
loaded.

No idea why it isn't using pci_register_driver() though -- that should
be fine... and is even _present_ but disabled by #if 0.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-02-27 04:52:45 +09:00
Ingo Molnar fc6fc7f1b1 Merge branch 'linus' into x86/apic
Conflicts:
	arch/x86/mach-default/setup.c

Semantic conflict resolution:
	arch/x86/kernel/setup.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-22 20:05:19 +01:00
Corentin Chary 1b24bc3aab UBI: add fsync capability
Now, we can call fsync() on an UBI volume.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-02-20 13:34:06 +02:00
Gregory CLEMENT 744f659272 [ARM] 5400/1: Add support for inverted rdy_busy pin for Atmel nand device controller
Add support for inverted rdy_busy pin for Atmel nand device controller
It will fix building error on NeoCore926 board.

Acked-by: Andrew Victor <linux@maxim.org.za>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Gregory CLEMENT <gclement@adeneo.adetelgroup.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-16 21:40:39 +00:00
Mike Frysinger ab00d68276 [MTD] [MAPS] blackfin async requires complex mappings
Correct a build error.  bfin-async uses complex mappings and so needs it.

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-02-14 08:08:13 +00:00
Mike Frysinger 10715b8751 [MTD] [MAPS] blackfin: fix memory leak in error path
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-02-14 08:07:05 +00:00
Atsushi Nemoto e480814f13 [MTD] [MAPS] physmap: fix wrong free and del_mtd_{partition,device}
commit 176bf2e0f1 ("physmap: fix leak of
memory returned by parse_mtd_partitions") deals with a memory leak and
frees the pointer array of mtd_partition after the call to
add_mtd_partitions().  the problem is that mtd_table[x]->name still points
to the freed memory.

Aldo physmap_flash_remove() should call del_mtd_partitions() or
del_mtd_device() only once.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Reported-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Tested-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-02-14 08:06:20 +00:00
Ingo Molnar f8a6b2b9ce Merge branch 'linus' into x86/apic
Conflicts:
	arch/x86/kernel/acpi/boot.c
	arch/x86/mm/fault.c
2009-02-13 09:44:22 +01:00
Ingo Molnar 9d45cf9e36 Merge branch 'x86/urgent' into x86/apic
Conflicts:
	arch/x86/mach-default/setup.c

Semantic merge:
	arch/x86/kernel/irqinit_32.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05 22:30:01 +01:00
Linus Torvalds 7420b73dc0 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  NVRAM depends on RTC_DRV_CMOS
  rename platform_driver name "flash" to "sa1100-mtd"
  annotate that [fp, #-4] is the saved lr
  Use __SPIN_LOCK_UNLOCKED to initialize bad_irq_desc.lock
  ARM: OMAP: fix fault in enter_full_retention()
  ARM: OMAP: Mask interrupts when disabling interrupts, v2
  ARM: OMAP: gptimer min_delta_ns corrected
  ARM: OMAP: Fix hsmmc init, v2
  ARM: OMAP: Fix omap34xx revision detection for ES3.1
  ARM: OMAP: DMA: Fix uninitialized channel flags
  ARM: OMAP: Fix race in OMAP2/3 DMA IRQ handling
  ARM: OMAP: Fix McBSP spin_lock deadlock
  [ARM] 5366/1: fix shared memory coherency with VIVT L1 + L2 caches
  [ARM] call undefined instruction exception handler with irqs enabled
  [ARM] msm: fix build errors
  [ARM] etherh: continue fixing build failure
2009-02-03 16:52:10 -08:00
Russell King de8696203e Merge branch 'omap-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-02-01 17:53:26 +00:00
Uwe Kleine-König bcc8f3e01f rename platform_driver name "flash" to "sa1100-mtd"
"flash" is a very generic name for a platform_driver that is only
available on SA11x0.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Pitre <nico@marvell.com>
2009-01-31 01:21:58 +01:00
Linus Torvalds 0d28088496 Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
  UBI: allow direct user-space I/O
  UBI: fix resource de-allocation
  UBI: remove unused variable
  UBI: use nicer 64-bit math
  UBI: add ioctl compatibility
  UBI: constify file operations
  UBI: allow all ioctls
  UBI: remove unnecessry header inclusion
  UBI: improve ioctl commentaries
  UBI: add ioctl for is_mapped operation
  UBI: add ioctl for unmap operation
  UBI: add ioctl for map operation
2009-01-29 18:12:58 -08:00
Yinghai Lu 4272ebfbef x86: allow more than 8 cpus to be used on 32-bit
X86_PC is the only remaining 'sub' architecture, so we dont need
it anymore.

This also cleans up a few spurious references to X86_PC in the
driver space - those certainly should be X86.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-30 00:20:22 +01:00
Ingo Molnar e0c7ae376a x86: rename X86_GENERICARCH to X86_32_NON_STANDARD
X86_GENERICARCH is a misnomer - it contains non-PC 32-bit architectures
that are not included in the default build.

Rename it to X86_32_NON_STANDARD.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 14:17:20 +01:00
Stephen Rothwell 4712fff9be powerpc: More printing warning fixes for the l64 to ll64 conversion
These are all powerpc specific drivers.

res.start in fsl_elbc_nand.c needs to be cast since it may be either 32
or 64 bit.  Thanks to Scott Wood for noticing.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de> call_edac bits in particular
Acked-by: Olof Johansson <olof@lixom.net> pasemi_nand peices
Acked-by: Scott Wood <scottwood@freescale.com> fsl_elbc fixes
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-28 17:15:52 +11:00
Sidney Amani 766fb95ba0 UBI: allow direct user-space I/O
Introduce a new ioctl UBI_IOCSETPROP to set properties
on a volume. Also add the first property:
UBI_PROP_DIRECT_WRITE, this property is used to set the
ability to use direct writes in userspace

Signed-off-by: Sidney Amani <seed@uffs.org>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-27 16:54:41 +02:00
Artem Bityutskiy 36b477d005 UBI: fix resource de-allocation
GregKH asked to fix UBI which has fake device release method. Indeed,
we have to free UBI device description object from the release method,
because otherwise we'll oops is someone opens a UBI device sysfs file,
then the device is removed, and he reads the file. With this fix, he
will get -ENODEV instead of an oops.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-20 18:13:53 +02:00
Artem Bityutskiy 8c4c19f136 UBI: remove unused variable
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-20 18:13:53 +02:00
Roel Kluin 3afd522de8 [MTD] slram: Handle negative devlength correctly
A negative devlength won't get noticed and clean up:

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-19 12:24:21 +11:00
Artem Bityutskiy 3013ee31b6 UBI: use nicer 64-bit math
Get rid of 'do_div()' and use more user-friendly primitives from
'linux/math64.h'.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:27:44 +02:00
Artem Bityutskiy f429b2ea8e UBI: add ioctl compatibility
UBI ioctl's do not work when running 64-bit kernel and 32-bit
user-land. Fix this by adding the compat_ioctl method.

Also, UBI serializes all ioctls, so more than one ioctl at a time
is not a problem. Amd UBI does not seem to depend on anything else,
so use unlocked_ioctl instead of ioctl (no BKL needed).

Reported-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2009-01-18 14:27:41 +02:00
Jan Engelhardt 4d187a88d3 UBI: constify file operations
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:02:08 +02:00
Artem Bityutskiy ade44ce07c UBI: allow all ioctls
Some ioctl's in UBI are enabled only when debugging is switched
on. There is not particular reason for this, just noone needed
them. However, some people need the now for their user-space
development. Thus, allow these ioctl's even if UBI debugging
is disabled.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:02:08 +02:00
Artem Bityutskiy 573135b5db UBI: remove unnecessry header inclusion
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:02:08 +02:00
Corentin Chary a27ce8f55d UBI: add ioctl for is_mapped operation
This patch adds ioctl to check if an LEB is mapped or not (as a
debugging option so far).

[Re-named ioctl to make it look the same as the other one and made
 some minor stylistic changes. Artem Bityutskiy.]

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:02:08 +02:00
Corentin Chary c3da23be16 UBI: add ioctl for unmap operation
This patch adds ioctl for the LEB unmap operation (as a debugging
option so far).

[Re-named ioctl to make it look the same as the other one and made
 some minor stylistic changes. Artem Bityutskiy.]

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:02:08 +02:00
Corentin Chary 141e6ebd1b UBI: add ioctl for map operation
This patch adds ioctl for the LEB map operation (as a debugging
option so far).

[Re-named ioctl to make it look the same as the other one and made
 some minor stylistic changes. Artem Bityutskiy.]

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-18 14:02:08 +02:00
Jarkko Nikula 73069e388d ARM: OMAP: Fix gpio by switching to generic gpio calls, v2
Fix compile by removing remaining omap specific gpio
calls. Based on earlier patches by Jarkko Nikula.

Also remove old GPIO key code, there is already a patch
to do this with gpio_keys.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:52 +02:00
Alan Cox 5f877607cd [MTD] map_rom has NULL erase pointer
Which means if inftl or similar are loaded with it (which is a dumb thing
to do admittedly) it may oops.

Closes #8108

[dwmw2: change error to -EROFS to match write-protected flash]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-11 19:56:46 +00:00
Alexey Korolev 57c1a24ee2 [MTD] [LPDDR] qinfo_probe depends on lpddr
Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-11 10:42:32 +00:00
Linus Torvalds 7c51d57e9d Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (67 commits)
  [MTD] [MAPS] Fix printk format warning in nettel.c
  [MTD] [NAND] add cmdline parsing (mtdparts=) support to cafe_nand
  [MTD] CFI: remove major/minor version check for command set 0x0002
  [MTD] [NAND] ndfc driver
  [MTD] [TESTS] Fix some size_t printk format warnings
  [MTD] LPDDR Makefile and KConfig
  [MTD] LPDDR extended physmap driver to support LPDDR flash
  [MTD] LPDDR added new pfow_base parameter
  [MTD] LPDDR Command set driver
  [MTD] LPDDR PFOW definition
  [MTD] LPDDR QINFO records definitions
  [MTD] LPDDR qinfo probing.
  [MTD] [NAND] pxa3xx: convert from ns to clock ticks more accurately
  [MTD] [NAND] pxa3xx: fix non-page-aligned reads
  [MTD] [NAND] fix nandsim sched.h references
  [MTD] [NAND] alauda: use USB API functions rather than constants
  [MTD] struct device - replace bus_id with dev_name(), dev_set_name()
  [MTD] fix m25p80 64-bit divisions
  [MTD] fix dataflash 64-bit divisions
  [MTD] [NAND] Set the fsl elbc ECCM according the settings in bootloader.
  ...

Fixed up trivial debug conflicts in drivers/mtd/devices/{m25p80.c,mtd_dataflash.c}
2009-01-09 12:37:15 -08:00
David Woodhouse 85795dac74 [MTD] [MAPS] Fix printk format warning in nettel.c
MTD size is 64-bit now...

Pointed out by Randy Dunlap <randy.dunlap@oracle.com>

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-09 14:17:50 +00:00
Philip Rakity 68874414de [MTD] [NAND] add cmdline parsing (mtdparts=) support to cafe_nand
[dwmw2: updated and made to still register whole device first]
Signed-off-by: Philip Rakity <pakity@yahoo.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-09 12:27:13 +00:00
Wolfgang Grandegger fefae48bf8 [MTD] CFI: remove major/minor version check for command set 0x0002
The NOR Flash memory K8P2815UQB from Samsung uses the major version
number '0'. Add a quirk to cope with it.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-09 12:16:28 +00:00
Linus Torvalds 85da1fb545 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (53 commits)
  serial: Add driver for the Cell Network Processor serial port NWP device
  powerpc: enable dynamic ftrace
  powerpc/cell: Fix the prototype of create_vma_map()
  powerpc/mm: Make clear_fixmap() actually work
  powerpc/kdump: Use ppc_save_regs() in crash_setup_regs()
  powerpc: Export cacheable_memzero as its now used in a driver
  powerpc: Fix missing semicolons in mmu_decl.h
  powerpc/pasemi: local_irq_save uses an unsigned long
  powerpc/cell: Fix some u64 vs. long types
  powerpc/cell: Use correct types in beat files
  powerpc: Use correct type in prom_init.c
  powerpc: Remove unnecessary casts
  mtd/ps3vram: Use _PAGE_NO_CACHE in memory ioremap
  mtd/ps3vram: Use msleep in waits
  mtd/ps3vram: Use proper kernel types
  mtd/ps3vram: Cleanup ps3vram driver messages
  mtd/ps3vram: Remove ps3vram debug routines
  mtd/ps3vram: Add modalias support to the ps3vram driver
  mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD
  powerpc: Fix iseries drivers build failure without CONFIG_VIOPATH
  ...
2009-01-08 09:10:16 -08:00
Coly Li 73ac36ea14 fix similar typos to successfull
When I review ocfs2 code, find there are 2 typos to "successfull".  After
doing grep "successfull " in kernel tree, 22 typos found totally -- great
minds always think alike :)

This patch fixes all the similar typos. Thanks for Randy's ack and comments.

Signed-off-by: Coly Li <coyli@suse.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:15 -08:00
Geoff Levand 2efd72af0f mtd/ps3vram: Use _PAGE_NO_CACHE in memory ioremap
Use _PAGE_NO_CACHE for gpu memory ioremap.  Also,
add __iomem attribute to gpu memory pointer and
change use of memset() to memset_io().

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:15 +11:00
Geoff Levand 60c0c5987b mtd/ps3vram: Use msleep in waits
Replace the use of udelay() with msleep() in the looping wait routines
ps3vram_notifier_wait() and ps3vram_wait_ring().

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:15 +11:00
Geoff Levand 993e62e674 mtd/ps3vram: Use proper kernel types
Replace the use of stdint.h types with kernel types
in the ps3vram driver.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:15 +11:00
Geoff Levand f259d74e03 mtd/ps3vram: Cleanup ps3vram driver messages
Cleanup the ps3vram driver messages.  Add a new struct device pointer
variable dev to struct ps3vram_priv and use dev_dbg(), pr_dbg(), etc.
where appropriate.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:15 +11:00
Geoff Levand e7dd54cf17 mtd/ps3vram: Remove ps3vram debug routines
Remove the ps3vram debug routines ps3vram_dump_ring() and
ps3vram_dump_reports().  These routines are not needed.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:14 +11:00
Geert Uytterhoeven 0a2d15b928 mtd/ps3vram: Add modalias support to the ps3vram driver
Update ps3vram driver to use the new ps3 three id modalias support.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:14 +11:00
Jim Paris cffb4add03 mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD
Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD
device suitable for storage or swap.  Fast data transfer is achieved
using a local cache in system RAM and DMA transfers via the GPU.

Signed-off-by: Vivien Chappelier <vivien.chappelier@free.fr>
Signed-off-by: Jim Paris <jim@jtan.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:14 +11:00
Linus Torvalds 57c44c5f6f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits)
  trivial: chack -> check typo fix in main Makefile
  trivial: Add a space (and a comma) to a printk in 8250 driver
  trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx
  trivial: Fix misspelling of "firmware" in powerpc Makefile
  trivial: Fix misspelling of "firmware" in usb.c
  trivial: Fix misspelling of "firmware" in qla1280.c
  trivial: Fix misspelling of "firmware" in a100u2w.c
  trivial: Fix misspelling of "firmware" in megaraid.c
  trivial: Fix misspelling of "firmware" in ql4_mbx.c
  trivial: Fix misspelling of "firmware" in acpi_memhotplug.c
  trivial: Fix misspelling of "firmware" in ipw2100.c
  trivial: Fix misspelling of "firmware" in atmel.c
  trivial: Fix misspelled firmware in Kconfig
  trivial: fix an -> a typos in documentation and comments
  trivial: fix then -> than typos in comments and documentation
  trivial: update Jesper Juhl CREDITS entry with new email
  trivial: fix singal -> signal typo
  trivial: Fix incorrect use of "loose" in event.c
  trivial: printk: fix indentation of new_text_line declaration
  trivial: rtc-stk17ta8: fix sparse warning
  ...
2009-01-07 11:31:52 -08:00
Kay Sievers 475b44c199 mtd: struct device - replace bus_id with dev_name(), dev_set_name()
CC: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06 10:44:38 -08:00
Frederik Schwarzer 025dfdafe7 trivial: fix then -> than typos in comments and documentation
- (better, more, bigger ...) then -> (...) than

Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-06 11:28:06 +01:00
Sean MacLennan a808ad3b0d [MTD] [NAND] ndfc driver
The current ndfc driver only compiles under arch/ppc. This arch was
removed from the kernel. I notice the event entry for the ndfc in
Kconfig has been removed in 2.6.28.

This patch converts the ndfc to a proper OF (OpenFirmware) driver. I
can give a working example of the DTS if needed.

The patch has been in production use on the PIKA Warp Appliance and is
in use by others. The Warp basically boots from NAND, so the ndfc driver
is very important to us.

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-By: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 16:42:44 +00:00
David Woodhouse 647b0d3854 [MTD] [TESTS] Fix some size_t printk format warnings
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 16:31:03 +00:00
David Woodhouse 572acc4127 Merge branch 'master' of git://git.infradead.org/users/dedekind/mtd-tests-2.6
Conflicts:
	drivers/mtd/Makefile
2009-01-05 16:24:55 +00:00
Alexey Korolev 60f26520e7 [MTD] LPDDR Makefile and KConfig
We have two components to manage LPDDR flash memories in Linux.
1. It is a driver for chip probing and reading its capabilities
2. It is a device operations driver.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Acked-by: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 13:58:47 +01:00
Alexey Korolev d81408304b [MTD] LPDDR extended physmap driver to support LPDDR flash
Physmap is a generic map driver for different platforms and flash types.
We added support of LPDDR to physmap.
All changes here are related to introduction of new pfow_base parameter.
This parameter is valid in case of LPDDR chips only.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Acked-by: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 13:57:28 +01:00
Alexey Korolev c68264711c [MTD] LPDDR Command set driver
Driver which handles device command operation.
Details on device operations are available here:
http://www.numonyx.com/Documents/Datasheets/DS-315768_Velocity-Discrete.pdf

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Acked-by: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 13:56:04 +01:00
Alexey Korolev 8dc004395d [MTD] LPDDR qinfo probing.
LPDDR flash chips are based on completely new kind of chips probing.
Device capabilities are available via special request.
We sent field request command which contains Major and Minor numbers - and
recieve corresponend value.
All requests are performed within PFOW window.
Detailed information about qinfo records can be found here:
http://www.numonyx.com/Documents/Datasheets/DS-315768_Velocity-Discrete.pdf

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Acked-by: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 13:55:48 +01:00
Matt Reimer 5b0d4d7c8a [MTD] [NAND] pxa3xx: convert from ns to clock ticks more accurately
The various fields in NDTR{01} are in units of clock ticks minus one, but the
ns2cycle macro mistakenly adds one, inflating the number of clock ticks and
making it impossible to set any of these fields to zero.

Signed-off-by: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 13:03:20 +01:00
Matt Reimer 7f9938d0fd [MTD] [NAND] pxa3xx: fix non-page-aligned reads
Reads from non-page-aligned addresses were broken because while the
address to read from was correctly written to NDCB*, a full page was
always read. Fix this by ignoring the column and only using the page
address.

I suspect this whole-page behavior is due to the controller's need to
read the entire page in order to generate correct ECC. In the non-ECC
case this could be optimized to use the column address, and to set the
read length to what is being requested rather than the length of an
entire page.

Signed-off-by: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 13:02:42 +01:00
Randy Dunlap a5cce42f35 [MTD] [NAND] fix nandsim sched.h references
Fix sched.h references:

build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1326: error: dereferencing pointer to incomplete type
build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1326: error: 'PF_MEMALLOC' undeclared (first use in this function)
build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1328: error: dereferencing pointer to incomplete type
build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1335: error: dereferencing pointer to incomplete type
build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1335: error: 'PF_MEMALLOC' undeclared (first use in this function)
build-r7149.out:make[4]: *** [drivers/mtd/nand/nandsim.o] Error 1

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 12:59:32 +01:00
Julia Lawall 232ed5e68a [MTD] [NAND] alauda: use USB API functions rather than constants
This set of patches introduces calls to the following set of functions:

usb_endpoint_dir_in(epd)
usb_endpoint_dir_out(epd)
usb_endpoint_is_bulk_in(epd)
usb_endpoint_is_bulk_out(epd)
usb_endpoint_is_int_in(epd)
usb_endpoint_is_int_out(epd)
usb_endpoint_num(epd)
usb_endpoint_type(epd)
usb_endpoint_xfer_bulk(epd)
usb_endpoint_xfer_control(epd)
usb_endpoint_xfer_int(epd)
usb_endpoint_xfer_isoc(epd)

In some cases, introducing one of these functions is not possible, and it
just replaces an explicit integer value by one of the following constants:

USB_ENDPOINT_XFER_BULK
USB_ENDPOINT_XFER_CONTROL
USB_ENDPOINT_XFER_INT
USB_ENDPOINT_XFER_ISOC

An extract of the semantic patch that makes these changes is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r1@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) ==
- \(USB_ENDPOINT_XFER_CONTROL\|0\))
+ usb_endpoint_xfer_control(epd)

@r5@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) ==
-  \(USB_DIR_IN\|0x80\))
+ usb_endpoint_dir_in(epd)

@inc@
@@

#include <linux/usb.h>

@depends on !inc && (r1||r5)@
@@

+ #include <linux/usb.h>
  #include <linux/usb/...>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05 12:59:02 +01:00
David Woodhouse 353816f43d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
	arch/arm/mach-pxa/corgi.c
	arch/arm/mach-pxa/poodle.c
	arch/arm/mach-pxa/spitz.c
2009-01-05 10:50:33 +01:00
Linus Torvalds 574c3fdae3 Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
* 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6:
  UBI: fix checkpatch.pl warnings
  UBI: simplify PEB protection code
  UBI: prepare for protection tree improvements
  UBI: return -ENOMEM upon failing vmalloc
  UBI: document UBI ioctls
  UBI: handle write errors in WL worker
  UBI: fix error path
  UBI: some code re-structuring
  UBI: fix deadlock
  UBI: fix warnings when debugging is enabled
2009-01-02 15:57:26 -08:00
Artem Bityutskiy f2863c54f3 UBI: fix checkpatch.pl warnings
Just minor indentation and "over 80 characters" fixes.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-28 12:20:51 +02:00
Kay Sievers 160bbab300 [MTD] struct device - replace bus_id with dev_name(), dev_set_name()
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-23 10:00:14 +00:00
Artem Bityutskiy d85316ac45 [MTD] fix m25p80 64-bit divisions
MTD has recently been upgraded for 64-bit support, see commit
number 69423d99fc in the
mtd-2.6.git tree (git://git.infradead.org/mtd-2.6.git)
or see this URL:
http://git.infradead.org/mtd-2.6.git?a=commit;h=69423d99fc182a81f3c5db3eb5c140acc6fc64be

Some variables in MTD data structures which were 32-bit
became 64-bit. Namely, the 'size' field in 'struct mtd_info'
and the 'addr'/'len' fields in 'struct erase_info'. This
means we have to use 'do_div' to divide them.

This patch fixes the following linking error:
ERROR: "__umoddi3" [drivers/mtd/devices/m25p80.ko] undefined!

This patch changes divisions of 64-bit variable so that they use
'do_div'. This patch also change some print placeholders to
get rid of gcc warnings.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-19 16:23:35 +00:00
Artem Bityutskiy 5b7f3a500c [MTD] fix dataflash 64-bit divisions
MTD has recently been upgraded for 64-bit support, see commit
number 69423d99fc in the
mtd-2.6.git tree (git://git.infradead.org/mtd-2.6.git)
or see this URL:
http://git.infradead.org/mtd-2.6.git?a=commit;h=69423d99fc182a81f3c5db3eb5c140acc6fc64be

Some variables in MTD data structures which were 32-bit
became 64-bit. Namely, the 'size' field in 'struct mtd_info'
and the 'addr'/'len' fields in 'struct erase_info'. This
means we have to use 'do_div' to divide them.

This patch fixes the following linking error:
ERROR: "__udivdi3" [drivers/mtd/devices/mtd_dataflash.ko] undefined!
ERROR: "__umoddi3" [drivers/mtd/devices/mtd_dataflash.ko] undefined!

This patch changes divisions of 64-bit variable so that they use
'do_div'. This patch also change some print placeholders to
get rid of gcc warnings.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-19 16:23:18 +00:00
Sascha Hauer cb96cf1ad6 [ARM] MX3: add NAND support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-12-16 14:58:02 +01:00
Xiaochuan-Xu 7b6c32daec UBI: simplify PEB protection code
UBI has 2 RB-trees to implement PEB protection, which is too
much for simply prevent PEB from being moved for some time.
This patch implements this using lists. The benefits:

1. No need to allocate protection entry on each PEB get.
2. No need to maintain balanced trees and walk them.

Signed-off-by: Xiaochuan-Xu <xiaochuan-xu@cqu.edu.cn>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-16 10:09:58 +02:00
Russell King 7e1548a597 Merge branch 'omap3-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel 2008-12-15 22:13:26 +00:00
Xiaochuan-Xu 23553b2c08 UBI: prepare for protection tree improvements
This patch modifies @struct ubi_wl_entry and adds union which
contains only one element so far. This is just a preparation
for further changes which will kill the protection tree and
make UBI use a list instead.

Signed-off-by: Xiaochuan-Xu <xiaochuan-xu@cqu.edu.cn>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-15 19:34:50 +02:00
Russell King 72aaf09fda Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
Russell King 70d13e083c [ARM] netwinder: clean up GPIO naming
Netwinder was using gpio_xxx names which could clash with the GPIO
layer.  Add a 'nw_' prefix to ensure that these remain separate.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-13 09:12:07 +00:00
David Brownell 15f74b0335 ARM: OMAP: use gpio_to_irq
Have most uses of OMAP_GPIO_IRQ() use gpio_to_irq() instead.
Calls used for table initialization are left alone, at least
this time around.

(This patch is for code in both the OMAP tree and mainline.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10 17:35:26 -08:00
David Brownell 40e3925ba1 ARM: OMAP: switch to gpio_direction_input
More switchover to the cross-platform GPIO interface:
use gpio_direction_input(), not an OMAP-specific call.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10 17:35:26 -08:00
David Brownell 0b84b5ca43 ARM: OMAP: switch to standard gpio get/set calls
This patch replaces some legacy OMAP GPIO calls with the "new" (not
really, any more!) calls that work on most platforms.

The calls addressed by this patch are the simple ones to get and set
values ... for code that's in mainline, including the implementations
of those calls.

Except for the declarations and definitions of those calls, all of
these changes were performed by a simple SED script.  Plus, a few
"if() set() else set()" branches were merged by hand.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10 17:35:25 -08:00
Jason Jin 03ed107805 [MTD] [NAND] Set the fsl elbc ECCM according the settings in bootloader.
The ECCM maybe set in bootloader, Get ECCM settings from the bootloader,
can avoid the image written by bootloader cannot read out by kernel.

But the limitation of doing it this way is that, it could break large page
NAND if it is written with NAND disabled in u-boot and read with NAND
enabled, or vice versa.

Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 16:44:28 +00:00
Randy Dunlap d3af0f048c [MTD] [NAND] remove excess kernel-doc notation
Delete extra kernel-doc notation for struct fields and function
parameters that don't exist:

Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'wq' description in 'nand_chip'
Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'datbuf' description in 'nand_chip'
Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'oobbuf' description in 'nand_chip'
Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'oobdirty' description in 'nand_chip'
Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'data_poi' description in 'nand_chip'
Warning(drivers/mtd/nand/nand_base.c:2527): Excess function parameter 'maxchips' description in 'nand_scan_tail'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 16:10:40 +00:00
Atsushi Nemoto 176bf2e0f1 [MTD] physmap: fix leak of memory returned by parse_mtd_partitions
The mtd partition parser returns an allocated pointer array of
mtd_partition.  The caller must free it.  The array is used only for
add_mtd_partitions(), so free it just after the call.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 16:10:27 +00:00
Julia Lawall 002f6aab43 [MTD] drivers/mtd/maps/nettel.c: use ARRAY_SIZE
ARRAY_SIZE is more concise to use when the size of an array is divided by
the size of its type or the size of its first element.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@i@
@@

#include <linux/kernel.h>

@depends on i using "paren.iso"@
type T;
T[] E;
@@

- (sizeof(E)/sizeof(E[...]))
+ ARRAY_SIZE(E)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 16:10:17 +00:00
Mike Frysinger dcb3e137ce [MTD] physmap: make physmap compat explicit
The current method for always showing physmap compat address, size, and
width is a bit confusing.  If length is set to 0, then the address and
width are still shown but silently unused.  The physmap code itself
already has logic which sets compat based on length, so just pull that out
and into the Kconfig to make everything clear.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Bryan Wu <Bryan.Wu@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 16:10:05 +00:00
David Woodhouse c4956ed6fa Merge branch 'misc/mtd/sharpsl-nand' of git://git.kernel.org/pub/scm/linux/kernel/git/lumag/tosa-2.6 2008-12-10 15:49:12 +00:00
Harvey Harrison c80a7b265f [MTD] remove private wrapper of endian helpers in rfd_ftl.c
Base versions handle constant folding just fine.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 15:39:09 +00:00
Artem Bityutskiy 9faa8153be MTD: add MTD tests to compilation
Add MTD tests to Kconfig and Makefiles.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-10 17:00:44 +02:00
Artem Bityutskiy 4db451a764 MTD: tests: add mtd_torturetest
This test is designed to work for very long time and it tries to
wear few eraseblocks.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-10 17:00:40 +02:00
David Woodhouse 26cdb67c74 [MTD] Remove more strange u_intxx_t types
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 14:08:56 +00:00
David Woodhouse 3854be7712 [MTD] Remove strange u_int32_t types from FTL
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 14:06:42 +00:00
David Woodhouse 0f07a0be39 [MTD] [NAND] Remove strange u_int64_t types from nandsim
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 14:01:46 +00:00
Adrian Hunter 69423d99fc [MTD] update internal API to support 64-bit device size
MTD internal API presently uses 32-bit values to represent
device size.  This patch updates them to 64-bits but leaves
the external API unchanged.  Extending the external API
is a separate issue for several reasons.  First, no one
needs it at the moment.  Secondly, whether the implementation
is done with IOCTLs, sysfs or both is still debated.  Thirdly
external API changes require the internal API to be accepted
first.

Note that although the MTD API will be able to support 64-bit
device sizes, existing drivers do not and are not required
to do so, although NAND base has been updated.

In general, changing from 32-bit to 64-bit values cause little
or no changes to the majority of the code with the following
exceptions:
    	- printk message formats
    	- division and modulus of 64-bit values
    	- NAND base support
	- 32-bit local variables used by mtdpart and mtdconcat
	- naughtily assuming one structure maps to another
	in MEMERASE ioctl

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:37:21 +00:00
Alexey Korolev 8a4c2495b1 MTD: nandsim: use less RAM
Nandsim consumes ~2x more RAM than the density of simulated device.
It becomes critical if we need to simulate 256MB NAND and run stress tests
on it.

We investigated the reasons. nandsim allocates space for pages using kmalloc
function. The size of LP nand page is 2112 bytes.
kmalloc gets space from slab pools by chunks 2^n. So if we need to kmalloc
2112 bytes, 4096 bytes will be consumed by system.
The best way to avoid this issue would be using kmem_cache allocations. AFAIK
this mechanism specially designed to handle cases when arrays of allocations
are used.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:35:23 +00:00
Adrian Hunter a9fc899188 MTD: nandsim: add option to use a file to cache pages
Add a new module parameter 'cache_file' which causes nandsim
to use that file instead of memory to cache nand data.
Using a file allows the simulation of NAND that is bigger
than the available memory.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:35:21 +00:00
Adrian Hunter 9359ea461b MTD: nandsim: suppress unnecessary warning
nand_base sometimes reads only 2 bytes of a 4 byte id.
It is OK.  Do not print a warning in that case.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:35:19 +00:00
Dmitri Vorobiev 4f8f3af20a [MTD] Make init_impa7 static
The function init_impa7 does not need to be global, and
this patch makes it static by adding the needed keyword
to drivers/mtd/maps/impa7.c.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:32 +00:00
Dmitri Vorobiev 9a2b3974ef [MTD] Make init_redwood_flash function static
The function init_redwood_flash is needlessly defined global,
make it static by this patch.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:29 +00:00
Dmitri Vorobiev 6127cfcd3d [MTD] Make init_msp_flash function static
The function init_msp_flash, which is not used outside of
drivers/mtd/maps/pmcmsp-flash.c, can become static. This
patch adds the needed keyword.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:26 +00:00
Dmitri Vorobiev 2257594f9c [MTD] Make h720x_mtd_init function static
The function h720x_mtd_init is not used outside of the file
drivers/mtd/maps/h720x-flash.c and can therefore become static.
This patch adds the necessary keyword.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:23 +00:00
Dmitri Vorobiev 9cdd52fa97 [MTD] Make init_mbx function static
The function init_mbx can become static, because it is not used
outside the file drivers/mtd/maps/mbx860.c. This patch adds the
needed keyword.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:20 +00:00
Dmitri Vorobiev 1aed165a60 [MTD] Make the function init_vmax301 static
The function init_vmax301 is needlessly defined global in
drivers/mtd/maps/vmax301.c, and this patch makes it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:17 +00:00
Dmitri Vorobiev e63b3f94b0 [MTD] Make init_fortunet function static
The symbol init_fortunet is needlessly defined global in
drivers/mtd/maps/fortunet.c. Make it static and clean up
the kernel global namespace.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:13 +00:00
Dmitri Vorobiev b93dc2e9fc [MTD] Make alchemy_mtd_init function static
The symbol alchemy_mtd_init does not need to be global, so make it
static in drivers/mtd/maps/alchemy-flash.c.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:10 +00:00
Dmitri Vorobiev 9bd1c9dac8 [MTD] Make ipaq_mtd_init function static
The symbol ipaq_mtd_init is not used anywhere outside of
drivers/mtd/maps/ipaq-flash.c, so make it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:06 +00:00
Dmitri Vorobiev baa0f0fc5f [MTD] Make init_dbox2_flash static
The symbol init_dbox2_flash is not used outside of the file
drivers/mtd/maps/dbox2-flash.c, so make it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:02 +00:00
Dmitri Vorobiev 2e257a2d6d [MTD] Make init_flagadm function static
The module init function init_flagadm does not need to be global,
so add the needed keyword to drivers/mtd/maps/cfi_flagadm.c.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:01:00 +00:00
Dmitri Vorobiev d849257c42 [MTD] Make init_oct5066 function static
The function init_oct5066 is needlessly defined global in
drivers/mtd/maps/octagon-5066.c. Make it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:56 +00:00
Dmitri Vorobiev d8156adb7a [MTD] Make the init_edb7312nor function static
The init_edb7312nor function is needlessly defined global in
drivers/mtd/maps/edb7312.c, and this patch makes it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:51 +00:00
Dmitri Vorobiev 8d240325b3 [MTD] Make init_sbc82xx_flash function static
The function init_sbc82xx_flash is needlessly defined global in
drivers/mtd/maps/wr_sbc82xx_flash.c, and this patch makes it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:47 +00:00
Dmitri Vorobiev bc185405c8 [MTD] Make init_rpxlite function static
The function init_rpxlite, which is not used outside of
drivers/mtd/maps/rpxlite.c, can become static. Add the
needed keyword.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:43 +00:00
Dmitri Vorobiev e30bb9cf5f [MTD] Make init_tqm_mtd function static
The init_tqm_mtd function does not need to be defined globally
in drivers/mtd/maps/tqm8xxl.c. Make it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:37 +00:00
Dmitri Vorobiev 769455e224 [MTD] Make uclinux_mtd_cleanup and uclinux_mtd_init static
The functions uclinux_mtd_cleanup and uclinux_mtd_init do
not heed to be global. Add the needed keyword to the file
drivers/mtd/maps/uclinux.c to make these functions static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:33 +00:00
Dmitri Vorobiev e4582ea71c [MTD] Make lart_flash_init, lart_flash_exit static
The symbols lart_flash_init, lart_flash_exit are needlessly
defined global in drivers/mtd/devices/lart.c, so make them
static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:26 +00:00
Dmitri Vorobiev 9ee49fa5c1 [MTD] Make init_sbc8240_mtd function static
The function init_sbc8240_mtd is not called from outside the
module drivers/mtd/maps/sbc8240.c where it is defined, so it
can become static. Add the needed keyword.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:23 +00:00
Dmitri Vorobiev 26eb108570 [MTD] Make init_sharpsl symbol static
The function init_sharpsl is needlessly defined global.
Make it static by adding the needed keyword to the file
drivers/mtd/maps/sharpsl-flash.c, where the function is
defined.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:00:11 +00:00
Stefan Roese ad5942bad6 UBI: return -ENOMEM upon failing vmalloc
Return with correct error code (-ENOMEM) from ubi_attach_mtd_dev() upon
failing vmalloc().

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-10 14:28:48 +02:00
Linus Torvalds 4d9c6a21be Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD] [NAND] fix OOPS accessing flash operations over STM flash on PXA
  [MTD] [NAND] drivers/mtd/nand/pasemi_nand.c: Add missing pci_dev_put
  [MTD] [NAND] fsl_upm: fix build problem with 2.6.28-rc2
  [MTD] physmap: fix memory leak on physmap_flash_remove by using devres
  [MTD] m25p80: chip erase != block erase != sector erase
  [MTD] m25p80: fix detection of m25p16 flashes
  [MTD] m25p80: fix detection of SPI parts
  [MTD] [NAND] OMAP: OneNAND: header file relocation (part 2)
  [MTD] [NAND] OMAP: OneNAND: header file relocation
2008-12-09 08:28:36 -08:00
Artem Bityutskiy bf60862a58 MTD: tests: add mtd_subpagetest
This tests makes sure sub-pages on NAND MTD device work fine.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-08 13:56:14 +02:00
Artem Bityutskiy 7163cea15f MTD: tests: add mtd_stresstest
This test just performs random operations on random eraseblocks.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-08 13:56:14 +02:00
Artem Bityutskiy 72069be936 MTD: tests: add mtd_speedtest
This test examines I/O speed of the flash device.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-08 13:56:14 +02:00
Artem Bityutskiy 72091b6889 MTD: tests: add mtd_readtest
A simple tests which reads whole MTD device one page at a time.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-08 13:56:14 +02:00
Artem Bityutskiy e73f217439 MTD: tests: add mtd_pagetest
This test checks that NAND pages read/write work fine.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-08 13:56:14 +02:00
Artem Bityutskiy e3644da756 MTD: tests: add mtd_oobtest
This test checks that OOB of a NAND MTD device works fine.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-08 13:56:13 +02:00
Artem Bityutskiy 6fa6f5bbc3 UBI: handle write errors in WL worker
When a PEB is moved and a write error happens, UBI switches
to R/O mode, which is wrong, because we just copy the data
and may select a different PEB and re-try this. This patch
fixes WL worker's behavior.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-05 13:46:50 +02:00
Artem Bityutskiy 3c98b0a043 UBI: fix error path
Make sure the resources had not already been freed before
freeing them in the error path of the WL worker function.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-05 13:46:50 +02:00
Artem Bityutskiy 6a8f483f33 UBI: some code re-structuring
Minor code re-structuring and commentaries fixes to improve readability.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-05 13:46:49 +02:00
Artem Bityutskiy 4df581f3dc UBI: fix deadlock
We cannot call 'ubi_wl_get_peb()' with @ubi->buf_mutex locked,
because 'ubi_wl_get_peb()' may force erasure, which, in turn,
may call 'torture_peb()' which also locks the @ubi->buf_mutex
and deadlocks.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-05 13:46:49 +02:00
Artem Bityutskiy ed45819f31 UBI: fix warnings when debugging is enabled
The 'ubi_io_read_vid_hdr()' and 'ubi_io_read_ec_hdr()' function
have the 'verbose' argument which controls whether they should
print a warning if the VID/EC header was not found or was corrupted.
Some callers require the headers to be OK, and pass 1. Some allow
a corrupted/not present header, and pass 0.

       if (UBI_IO_DEBUG)
               verbose = 1;

And UBI_IO_DEBUG is 1 if CONFIG_MTD_UBI_DEBUG_MSG_BLD is true. So in
this case the warning is printed all the time. This confuses people.

Thus, do not print the messages as warnings if UBI_IO_DEBUG is true,
but print them as debugging messages instead.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-03 13:24:48 +02:00
Denis V. Lunev e93f1be503 [MTD] [NAND] fix OOPS accessing flash operations over STM flash on PXA
STM 2Gb flash is a large-page NAND flash.  Set operations accordingly.
This field is dereferenced without a check in several places resulting in
OOPS.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Eric Miao <ymiao3@marvell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-03 10:47:20 +00:00
Russell King c5b84b3bb0 Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel
Conflicts:

	arch/arm/mach-pxa/pxa25x.c
2008-12-02 22:07:40 +00:00
Julia Lawall d947629891 [MTD] [NAND] drivers/mtd/nand/pasemi_nand.c: Add missing pci_dev_put
pci_get_device increments a reference count that should be decremented
using pci_dev_put.

The semantic patch that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S,S1;
position p1,p2,p3;
expression E,E1;
type T,T1;
expression *ptr != NULL;
@@

(
 if ((x@p1 = pci_get_device(...)) == NULL) S
|
 x@p1 = pci_get_device(...);
)
 ... when != pci_dev_put(...,(T)x,...)
     when != if (...) { <+... pci_dev_put(...,(T)x,...) ...+> }
     when != true x == NULL || ...
     when != x = E
     when != E = (T)x
     when any
(
 if (x == NULL || ...) S1
|
 if@p2 (...) {
  ... when != pci_dev_put(...,(T1)x,...)
      when != if (...) { <+... pci_dev_put(...,(T1)x,...) ...+> }
      when != x = E1
      when != E1 = (T1)x
(
  return \(0\|<+...x...+>\|ptr\);
|
  return@p3 ...;
)
}
)

@ script:python @
p1 << r.p1;
p3 << r.p3;
@@

print "* file: %s pci_get_device: %s return: %s" % (p1[0].file,p1[0].line,p3[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-02 10:45:19 +00:00
Eric Miao afb5b5c9ad [ARM] pxa: explicit #include <mach/dma.h> in various drivers
Where 'pxa_dma_desc' and 'pxa_{request,free}_dma' are referenced.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-12-02 14:42:26 +08:00
Linus Torvalds e2a2444a90 Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
* 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6:
  UBI: Don't exit from ubi_thread until kthread_should_stop() is true
  UBI: fix EBADMSG handling
2008-11-30 11:34:17 -08:00
Russell King fba670013d Merge branch 's3c-moves2' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2008-11-29 19:35:07 +00:00
Russell King e902be56cb Merge branches 'core' and 'clks' into devel 2008-11-27 12:39:14 +00:00
Russell King e0d8b13ae1 [ARM] pxa: don't pass a consumer clock name for devices with unique clocks
Where devices only have one consumer, passing a consumer clock ID
has no real benefit.  Remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-27 12:38:23 +00:00
Russell King 59f0cb0fdd [ARM] remove memzero()
As suggested by Andrew Morton, remove memzero() - it's not supported
on other architectures so use of it is a potential build breaking bug.
Since the compiler optimizes memset(x,0,n) to __memzero() perfectly
well, we don't miss out on the underlying benefits of memzero().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-27 12:37:59 +00:00
Wolfgang Grandegger 29b65861fb [MTD] [NAND] fsl_upm: fix build problem with 2.6.28-rc2
The patch fixes following build error:

  CC      drivers/mtd/nand/fsl_upm.o
drivers/mtd/nand/fsl_upm.c: In function 'fun_chip_init':
drivers/mtd/nand/fsl_upm.c:168: warning: passing argument 2 of 'of_mtd_parse_partitions' from incompatible pointer type
drivers/mtd/nand/fsl_upm.c:168: warning: passing argument 3 of 'of_mtd_parse_partitions' from incompatible pointer type
drivers/mtd/nand/fsl_upm.c:168: error: too many arguments to function 'of_mtd_parse_partitions'
make[1]: *** [drivers/mtd/nand/fsl_upm.o] Error 1

The breakage was introduced in 69fd3a8d09
("[MTD] remove unused mtd parameter in of_mtd_parse_partitions()").

While at it, also add a check for the of_mtd_parse_partitions() return
value.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-27 09:46:13 +00:00
Atsushi Nemoto 3136e903fa [MTD] physmap: fix memory leak on physmap_flash_remove by using devres
physmap_flash_remove releases only last memory region.  This causes
memory leak if multiple resources were provided.

This patch fixes this leakage by using devm_ functions.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26 10:26:29 +00:00
Chen Gong 7854643a91 [MTD] m25p80: chip erase != block erase != sector erase
This fixes broken terminology added in the "m25p80.c erase enhance" patch,
which added a chip erase command but called it "block erase".  There are
already two block erase commands; blocks are 4KiB or 32KiB.  There's also
a sector erase (usually 64 KiB).  Chip erase typically covers Megabytes.

  OPCODE_BE   ==> OPCODE_CHIP_ERASE
  erase_block ==> erase_chip

[dbrownell@users.sourceforge.net: update sector erase comments too ]

Signed-off-by: Chen Gong <clumsycg@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26 10:24:27 +00:00
Mike Frysinger 9168ab861a [MTD] m25p80: fix detection of m25p16 flashes
Commit d0e8c47c58 ("m25p80.c extended jedec
support") added support for extended ids but seems to break on flashes
which don't have an extended id defined.  If the table does not have an
extid defined, then we should ignore it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Hennerich <Michael.Hennerich@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26 10:23:35 +00:00
Mike Frysinger a3d3f73ccb [MTD] m25p80: fix detection of SPI parts
Commit d0e8c47c58 ("m25p80.c extended jedec
support") added support for extended ids but in the process managed to
break detection of all flashes.

The ext jedec id check was inserted into an if statement that lacked
braces, and it did not add the required braces.  As such, the detection
routine always returns the first entry in the SPI flash list.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26 10:23:25 +00:00
Adrian Hunter cbbd695687 [MTD] [NAND] OMAP: OneNAND: header file relocation (part 2)
Include <linux/dma-mapping.h> and <linux/io.h>, not files from <asm/*>

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26 10:08:13 +00:00
Adrian Hunter fe875358a6 [MTD] [NAND] OMAP: OneNAND: header file relocation
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-24 11:37:26 +00:00
Russell King 8959dabdf2 [ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13 15:05:03 +00:00
Russell King d9a682a592 [ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13 15:04:52 +00:00
Linus Torvalds c361948712 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [JFFS2] fix race condition in jffs2_lzo_compress()
  [MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)
  [JFFS2] Fix lack of locking in thread_should_wake()
  [JFFS2] Fix build failure with !CONFIG_JFFS2_FS_WRITEBUFFER
  [MTD] [NAND] OMAP2: remove duplicated #include
2008-11-06 15:43:13 -08:00
Vitaliy Gusev 2ad4988715 UBI: Don't exit from ubi_thread until kthread_should_stop() is true
If ubi_thread() exits but kthread_should_stop() is not true
then kthread_stop() will never return and cleanup thread
will forever stay in "D" state.

Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-11-06 11:13:04 +02:00
Zoltan Sogor b77bcb0789 UBI: fix EBADMSG handling
'ubi_io_read_data()' may return EBADMSG in case of an ECC error,
and we should not panic because of this. We have CRC32 checksum
and may check the data. So just ignore the EBADMSG error.

This patch also fixes a minor spelling error at the same time.

Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-11-06 11:13:02 +02:00
Eric W. Biederman 467622ef2a [MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)
For "unlock" cycles to 16bit devices in 8bit compatibility mode we need
to use the byte addresses 0xaaa and 0x555. These effectively match
the word address 0x555 and 0x2aa, except the latter has its low bit set.

Most chips don't care about the value of the 'A-1' pin in x8 mode,
but some -- like the ST M29W320D -- do. So we need to be careful to
set it where appropriate.

cfi_send_gen_cmd is only ever passed addresses where the low byte
is 0x00, 0x55 or 0xaa. Of those, only addresses ending 0xaa are
affected by this patch, by masking in the extra low bit when the device
is known to be in compatibility mode.

[dwmw2: Do it only when (cmd_ofs & 0xff) == 0xaa]
v4: Fix  stupid typo in cfi_build_cmd_addr that failed to compile
    I'm writing this patch way to late at night.
v3: Bring all of the work back into cfi_build_cmd_addr
    including calling of map_bankwidth(map) and cfi_interleave(cfi)
    So every caller doesn't need to.
v2: Only modified the address if we our device_type is larger than our
    bus width.

Cc: stable@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-05 14:40:25 +01:00
Jianjun Kong 54074d5932 drivers: remove duplicated #include
Signed-off-by: Jianjun Kong <jianjun@zeuux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-04 08:18:19 -08:00
Ben Dooks 7926b5a325 [ARM] S3C: Move nand headers to arch/arm/plat-s3c/include/plat
Move nand headers to arch/arm/plat-s3c/include/plat
ready to clean out the old include directories.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-10-30 10:17:13 +00:00
Dmitry Baryshkov 6af7a8eb1e [MTD] sharpsl-nand: move registration to board code
Finally move registration of sharpsl-nand device to board-specific code.
sharpsl nand driver is now clean and simple.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
2008-10-29 21:08:37 +03:00
Dmitry Baryshkov a20c7ab570 [MTD] sharpsl-nand: use platform_data for model-specific values
Add platform_data which holds all model-specific values, like badblocks
pattern, oobinfo, partitions.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
2008-10-29 21:06:38 +03:00
Dmitry Baryshkov c176d0ca8b [MTD] sharpsl-nand: cleanup partitions support
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
2008-10-29 21:06:38 +03:00
Dmitry Baryshkov a4e4f29cbe [MTD] sharpsl_nand: move io addr to struct sharpsl_nand
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
2008-10-29 21:06:37 +03:00
Dmitry Baryshkov 2206ef1c5f [MTD] sharpsl_nand: make drvdata non-static
Merge mtd_info and nand_chip info special struct and
make it drvdata instead of plain static variable.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
2008-10-29 21:06:37 +03:00