Commit Graph

1542 Commits

Author SHA1 Message Date
Linus Torvalds
48476df998 Merge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd
Pull MTD update from David Woodhouse:
 "Fairly unexciting MTD merge for 3.9:

   - misc clean-ups in the MTD command-line partitioning parser
     (cmdlinepart)
   - add flash locking support for STmicro chips serial flash chips, as
     well as for CFI command set 2 chips.
   - new driver for the ELM error correction HW module found in various
     TI chips, enable the OMAP NAND driver to use the ELM HW error
     correction
   - added number of new serial flash IDs
   - various fixes and improvements in the gpmi NAND driver
   - bcm47xx NAND driver improvements
   - make the mtdpart module actually removable"

* tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd: (45 commits)
  mtd: map: BUG() in non handled cases
  mtd: bcm47xxnflash: use pr_fmt for module prefix in messages
  mtd: davinci_nand: Use managed resources
  mtd: mtd_torturetest can cause stack overflows
  mtd: physmap_of: Convert device allocation to managed devm_kzalloc()
  mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement.
  mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional.
  mtd: atmel_nand: avoid to report an error when lookup table offset is 0.
  mtd: bcm47xxsflash: adjust names of bus-specific functions
  mtd: bcm47xxpart: improve probing of nvram partition
  mtd: bcm47xxpart: add support for other erase sizes
  mtd: bcm47xxnflash: register this as normal driver
  mtd: bcm47xxnflash: fix message
  mtd: bcm47xxsflash: register this as normal driver
  mtd: bcm47xxsflash: write number of written bytes
  mtd: gpmi: add sanity check for the ECC
  mtd: gpmi: set the Golois Field bit for mx6q's BCH
  mtd: devices: elm: Removes <xx> literals in elm DT node
  mtd: gpmi: fix a dereferencing freed memory error
  mtd: fix the wrong timeo for panic_nand_wait()
  ...
2013-03-02 16:33:54 -08:00
Linus Torvalds
d895cb1af1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile (part one) from Al Viro:
 "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
  locking violations, etc.

  The most visible changes here are death of FS_REVAL_DOT (replaced with
  "has ->d_weak_revalidate()") and a new helper getting from struct file
  to inode.  Some bits of preparation to xattr method interface changes.

  Misc patches by various people sent this cycle *and* ocfs2 fixes from
  several cycles ago that should've been upstream right then.

  PS: the next vfs pile will be xattr stuff."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
  saner proc_get_inode() calling conventions
  proc: avoid extra pde_put() in proc_fill_super()
  fs: change return values from -EACCES to -EPERM
  fs/exec.c: make bprm_mm_init() static
  ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
  ocfs2: fix possible use-after-free with AIO
  ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
  get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
  target: writev() on single-element vector is pointless
  export kernel_write(), convert open-coded instances
  fs: encode_fh: return FILEID_INVALID if invalid fid_type
  kill f_vfsmnt
  vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
  nfsd: handle vfs_getattr errors in acl protocol
  switch vfs_getattr() to struct path
  default SET_PERSONALITY() in linux/elf.h
  ceph: prepopulate inodes only when request is aborted
  d_hash_and_lookup(): export, switch open-coded instances
  9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
  9p: split dropping the acls from v9fs_set_create_acl()
  ...
2013-02-26 20:16:07 -08:00
Linus Torvalds
5115f3c19d Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
 "This is fairly big pull by my standards as I had missed last merge
  window.  So we have the support for device tree for slave-dmaengine,
  large updates to dw_dmac driver from Andy for reusing on different
  architectures.  Along with this we have fixes on bunch of the drivers"

Fix up trivial conflicts, usually due to #include line movement next to
each other.

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (111 commits)
  Revert "ARM: SPEAr13xx: Pass DW DMAC platform data from DT"
  ARM: dts: pl330: Add #dma-cells for generic dma binding support
  DMA: PL330: Register the DMA controller with the generic DMA helpers
  DMA: PL330: Add xlate function
  DMA: PL330: Add new pl330 filter for DT case.
  dma: tegra20-apb-dma: remove unnecessary assignment
  edma: do not waste memory for dma_mask
  dma: coh901318: set residue only if dma is in progress
  dma: coh901318: avoid unbalanced locking
  dmaengine.h: remove redundant else keyword
  dma: of-dma: protect list write operation by spin_lock
  dmaengine: ste_dma40: do not remove descriptors for cyclic transfers
  dma: of-dma.c: fix memory leakage
  dw_dmac: apply default dma_mask if needed
  dmaengine: ioat - fix spare sparse complain
  dmaengine: move drivers/of/dma.c -> drivers/dma/of-dma.c
  ioatdma: fix race between updating ioat->head and IOAT_COMPLETION_PENDING
  dw_dmac: add support for Lynxpoint DMA controllers
  dw_dmac: return proper residue value
  dw_dmac: fill individual length of descriptor
  ...
2013-02-26 09:24:48 -08:00
Al Viro
7bb307e894 export kernel_write(), convert open-coded instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-26 02:46:11 -05:00
Linus Torvalds
a8f3740feb Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device tree conversions from Arnd Bergmann:
 "These are device tree conversions for a number of platforms, with the
  intention of turning code from board files into device tree
  descriptions.  Notable changes are:

   - davinci bindings for pinctrl, MTD, RTC, watchdog and i2c

   - nomadik bindings for all devices, removing the board files

   - bcm2835 bindings for mmc and i2c

   - tegra bindings for hdmi, keyboard, audio, as well as some updates

   - at91 bindings for hardware ecc and for devices on RM9200

   - mxs bindings for cfa100xx

   - sunxi support for Miniand Hackberry board"

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (72 commits)
  Revert "sunxi: a10-cubieboard: Add user LEDs to the device tree"
  Revert "sunxi: a13-olinuxino: Add user LED to the device tree"
  clk: tegra: initialise parent of uart clocks
  ARM: tegra: remove clock-frequency properties from serial nodes
  clk: tegra: fix driver to match DT binding
  clk: tegra: local arrays should be static
  clk: tegra: Add missing spinlock for hclk and pclk
  clk: tegra: Implement locking for super clock
  clk: tegra: fix wrong clock index between se to sata_cold
  sunxi: a13-olinuxino: Add user LED to the device tree
  ARM: davinci: da850 DT: add support for machine reboot
  ARM: davinci: da850: add wdt DT node
  ARM: davinci: da850: add DT node for I2C0
  ARM: at91: at91sam9n12: add DT parameters to enable PMECC
  ARM: at91: at91sam9x5: add DT parameters to enable PMECC
  ARM: at91: add EMAC bindings to RM9200 DT
  ARM: at91: add SSC bindings to RM9200 DT
  ARM: at91: add MMC bindings to RM9200 DT
  ARM: at91: Animeo IP: enable watchdog support
  ARM: nomadik: fix OF compilation regression
  ...
2013-02-21 15:38:49 -08:00
Linus Torvalds
5ce7aba976 Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver specific changes from Arnd Bergmann:

 - Updates to the ux500 cpufreq code

 - Moving the u300 DMA controller driver to drivers/dma

 - Moving versatile express drivers out of arch/arm for sharing with arch/arm64

 - Device tree bindings for the OMAP General Purpose Memory Controller

* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits)
  ARM: OMAP2+: gpmc: Add device tree documentation for elm handle
  ARM: OMAP2+: gpmc: add DT bindings for OneNAND
  ARM: OMAP2+: gpmc-onenand: drop __init annotation
  mtd: omap-onenand: pass device_node in platform data
  ARM: OMAP2+: Prevent potential crash if GPMC probe fails
  ARM: OMAP2+: gpmc: Remove unneeded of_node_put()
  arm: Move sp810.h to include/linux/amba/
  ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND
  ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs
  ARM: OMAP: gpmc-nand: drop __init annotation
  mtd: omap-nand: pass device_node in platform data
  ARM: OMAP: gpmc: don't create devices from initcall on DT
  dma: coh901318: cut down on platform data abstraction
  dma: coh901318: merge header files
  dma: coh901318: push definitions into driver
  dma: coh901318: push header down into the DMA subsystem
  dma: coh901318: skip hard-coded addresses
  dma: coh901318: remove hardcoded target addresses
  dma: coh901318: push platform data into driver
  dma: coh901318: create a proper platform data file
  ...
2013-02-21 15:12:18 -08:00
Linus Torvalds
06991c28f3 Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg Kroah-Hartman:
 "Here is the big driver core merge for 3.9-rc1

  There are two major series here, both of which touch lots of drivers
  all over the kernel, and will cause you some merge conflicts:

   - add a new function called devm_ioremap_resource() to properly be
     able to check return values.

   - remove CONFIG_EXPERIMENTAL

  Other than those patches, there's not much here, some minor fixes and
  updates"

Fix up trivial conflicts

* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
  base: memory: fix soft/hard_offline_page permissions
  drivercore: Fix ordering between deferred_probe and exiting initcalls
  backlight: fix class_find_device() arguments
  TTY: mark tty_get_device call with the proper const values
  driver-core: constify data for class_find_device()
  firmware: Ignore abort check when no user-helper is used
  firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
  firmware: Make user-mode helper optional
  firmware: Refactoring for splitting user-mode helper code
  Driver core: treat unregistered bus_types as having no devices
  watchdog: Convert to devm_ioremap_resource()
  thermal: Convert to devm_ioremap_resource()
  spi: Convert to devm_ioremap_resource()
  power: Convert to devm_ioremap_resource()
  mtd: Convert to devm_ioremap_resource()
  mmc: Convert to devm_ioremap_resource()
  mfd: Convert to devm_ioremap_resource()
  media: Convert to devm_ioremap_resource()
  iommu: Convert to devm_ioremap_resource()
  drm: Convert to devm_ioremap_resource()
  ...
2013-02-21 12:05:51 -08:00
Rafał Miłecki
be0638d9e4 mtd: bcm47xxnflash: use pr_fmt for module prefix in messages
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-13 15:15:50 +02:00
Mrugesh Katepallewar
ef4e0c2145 mtd: davinci_nand: Use managed resources
davinci_nand driver currently uses normal kzalloc, ioremap and get_clk
routines. This patch replaces these routines with devm_kzalloc,
devm_request_and_ioremap and devm_clk_get resp.

Signed-off-by: Mrugesh Katepallewar <mrugesh.mk@ti.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-13 15:14:02 +02:00
Josh Wu
84cfbbb85a mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement.
This patch will check NAND flash's ecc minimum requirement in ONFI parameter.

1. if pmecc-cap, pmecc-sector-size is set in dts. then use it. Driver will
   print out a WARNING if the values are different from ONFI parameters.
2. if pmecc-cap, pmecc-sector-size is not set in dts, then use the value
   from ONFI parameters.
    * If ONFI ECC parameters are in ONFI extended parameter page, since we are
      not support it, so assume the minimum ecc requirement is 2 bits in 512
      bytes.
    * For non-ONFI support nand flash, also assume the minimum ecc requirement is
      2 bits in 512 bytes.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-12 17:01:02 +02:00
Josh Wu
e66b4318f8 mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional.
If those two are not specified in dts file, driver will report an error.

TODO: in this case, driver will find ecc requirement in NAND ONFI parameters.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-12 17:00:54 +02:00
Josh Wu
c0cf787f10 mtd: atmel_nand: avoid to report an error when lookup table offset is 0.
Before this patch, we assume the whole ROM code are mapping to memory. So
it is wrong if the lookup table offset is 0.

After this patch, we can map only the lookup table of ROM code to memory
intead of the whole ROM code (about 1M). In this case, one lookup table
offset can be 0.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-12 17:00:48 +02:00
Linus Torvalds
d92dd35920 Merge tag 'for-linus-20130204' of git://git.infradead.org/linux-mtd
Pull MTD fixes from David Woodhouse:
 "A small set of simple regression and build fixes for 3.8:
   - Fix a warning introduced in ONFI NAND probe
   - Fix commandline partition parsing
   - Require BITREVERSE for DiskOnChip G3 driver
   - Fix build failure for davinci_nand as module
   - Bump NFLASH_READY_RETRIES for bcm47xxnflash"

* tag 'for-linus-20130204' of git://git.infradead.org/linux-mtd:
  mtd: nand: onfi don't WARN if we are in 16 bits mode
  mtd: physmap_of: fix cmdline partition method w/o linux, mtd-name
  mtd: docg3 fix missing bitreverse lib
  mtd: davinci_nand: fix modular build with CONFIG_OF=y
  mtd: bcm47xxnflash: increase NFLASH_READY_RETRIES
2013-02-05 07:54:11 +11:00
Hauke Mehrtens
a7bf6543e8 mtd: bcm47xxnflash: register this as normal driver
When platform_driver_probe() is used and no device is registered for
this driver -ENODEV is returned and and error message is shown. Not all
BCM47xx SoC have a nand flash chip controller and chip and for them an
error message was shown.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 10:31:30 +02:00
Hauke Mehrtens
0fca6ab4e1 mtd: bcm47xxnflash: fix message
This is not a serial flash driver, but a nand flash driver

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 10:31:27 +02:00
Huang Shijie
92d0e09abe mtd: gpmi: add sanity check for the ECC
We do the check based on the following two facts:

[1] The mx23/mx28 can only support 20-bits ECC, while the mx6
    can supports 40-bits ECC.

[2] The mx23/mx28 can only support the GF13, while the mx6
    can supports GF13 and GF14.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 10:28:02 +02:00
Huang Shijie
9ff16f0833 mtd: gpmi: set the Golois Field bit for mx6q's BCH
The GF13 can be only used in the following case:
    The ECC data chunk is less then 1K bytes.

In mx23/mx28, the ecc data chunk is 512 bytes. So it is okay.

But in mx6q, we begin to use some large nand chip whose ecc
data chunk maybe 1K bytes long.  So when the data chunk is 1K bytes,
we have to use the GF14.

This patch sets the Golois Field bit when the GF14 is needed.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 10:27:59 +02:00
Huang Shijie
26738ddb85 mtd: gpmi: fix a dereferencing freed memory error
The patch "490e280 mtd: gpmi-nand: Convert to module_platform_driver()"
introduced a "dereferencing freed memory" error.

This patch fixes it.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 10:06:31 +02:00
Huang Shijie
6d2559f8bc mtd: fix the wrong timeo for panic_nand_wait()
The panic_nand_wait() expects the timeo in ms and not in jiffies.
But in nand_wait(), the timeo for panic_nand_wait() is assigned with
wrong value(jiffies + some delay). The timeo should be set like the
panic_nand_write() does.

This patch passes timeo in ms to panic_nand_wait().
And this patch also passes timeo in jiffies(converted by msecs_to_jiffies)
to time_before() which makes the code more readable.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:36:39 +02:00
Huang Shijie
f722689346 mtd: gpmi: dump the BCH registers
Dump the BCH registers in gpmi_dump_info().

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:27:33 +02:00
Tormod Volden
54cccc7094 mtd: nane: print source of error message
Add the function name to the error message.

These messages are not very helpful:

[183356.176682] uncorrectable error :
[183356.180273] uncorrectable error :
[183356.184194] uncorrectable error :
[183356.187773] uncorrectable error :
[183356.191280] uncorrectable error :

Artem: amended the patch a bit

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
2013-02-04 09:27:19 +02:00
Kim Phillips
0c69fb037a mtd: fsl_ifc_nand: use more portable i/o accessors
in/out_be32 accessors are Power arch centric whereas
ioread/writebe32 are available in other arches.

Since the IFC device registers are annotated big endian in
fsl_ifc.h, the accessor annotations now match, resulting in the
pleasant side-effect of this patch silencing sparse endian
warnings such as the following:

drivers/mtd/nand/fsl_ifc_nand.c:179:19: warning: incorrect type in argument 1 (different base types)
drivers/mtd/nand/fsl_ifc_nand.c:179:19:    expected unsigned int volatile [noderef] [usertype] <asn:2>*addr
drivers/mtd/nand/fsl_ifc_nand.c:179:19:    got restricted __be32 [noderef] <asn:2>*<noident>

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:26:30 +02:00
Philip Avinash
62116e5171 mtd: nand: omap2: Support for hardware BCH error correction.
ELM module can be used for hardware error correction of BCH 4 & 8 bit.
ELM module functionality is verified by checking the availability of
handle for ELM module in device tree. Hence supporting
1. ELM module available, BCH error correction done by ELM module. Also
support read & write page in one shot by adding custom read_page and
write_page methods. This helps in optimizing code for NAND flashes with
page size less than 4 KB.
2. If ELM module not available fall back to software BCH error
correction support.

New structure member is added to omap_nand_info
1. "is_elm_used" to know the status of whether the ELM module is used for
   error correction or not.
2. "elm_dev" device pointer to elm device on detection of ELM module.

Also being here update the device tree documentation of gpmc-nand for
adding optional property elm_id.

Note:
ECC layout uses 1 extra bytes for 512 byte of data to handle erased
pages. Extra byte programmed to zero for programmed pages. Also BCH8
requires 14 byte ecc to maintain compatibility with RBL ECC layout.
This results a common ecc layout across RBL, U-boot & Linux with BCH8.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:26:29 +02:00
Philip Avinash
c3e4b995e4 mtd: nand: omap2: Update nerrors using ecc.strength
Remove check of ecc bytes with 13, number of errors can directly update
from nand ecc strength. This will increase re-usability of the code.
Also add macro definitions BCH8_ERROR_MAX & BCH4_ERROR_MAX for better
readability and cleaner code.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:26:29 +02:00
Roman Schneider
a8459f21ed mtd: mxc_nand: compress ID info for send_read_id_v3
Also compress the id in case of a v3 NAND flash controller (i.mx51, i.mx53)
and 16Bit buswidth.

Signed-off-by: Roman Schneider <schneider@at.festo.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:26:29 +02:00
Akinobu Mita
aca662a3b1 mtd: rename random32() to prandom_u32()
Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:26:28 +02:00
Zach Sadecki
b23b746cdc mtd: gpmi: Always report ECC stats and return max_bitflips
Always report corrected and failed ECC stats back up to the MTD layer.  Also
return max_bitflips from read_page() as is expected from NAND drivers now.

Signed-off-by: Zach Sadecki <zsadecki@itwatchdogs.com>
Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-02-04 09:26:28 +02:00
Sergei Shtylyov
13daa22fcb mtd: davinci_nand: fix modular build with CONFIG_OF=y
Commit cdeadd712f (mtd: nand: davinci: add OF
support for davinci nand controller) has never been really build tested with
the driver as a module.  When the driver is built-in, the missing semicolon
after structure initializer is "compensated" by MODULE_DEVICE_TABLE() macro
being empty and so the initializer using the trailing semicolon on the next
line; when the driver is built as a module, compilation error ensues, and as
the 'davinci_all_defconfig' has the NAND driver modular, this error prevents
DaVinci family kernel from building...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@vger.kernel.org # 3.7
2013-02-04 09:26:27 +02:00
Linus Walleij
ba78520550 ARM: nomadik: add FSMC NAND
This adds the FSMC NAND driver and flash partitions to the Nomadik
device tree.

The only compatible string accepted by this driver is currently
"st,spear600-fsmc-nand" which is inappropriate for this system, so
this patch adds the compatible value "stericsson,fsmc-nand" as
well.

Cc: linux-mtd@vger.kernel.org
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-01-28 23:24:36 +01:00
Thierry Reding
b0de774c63 mtd: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25 12:21:47 -08:00
Matthieu CASTET
0ce82b7f7b mtd: nand: onfi don't WARN if we are in 16 bits mode
Commit ff3206b245 ('mtd: nand: onfi need 
to be probed in 8 bits mode') adds a WARN if the onfi probe is in 16 
bits mode. This allows to detect driver that need to be fixed, but this 
is a bit noisy¹. Transform the WARN in a pr_err.

¹ http://article.gmane.org/gmane.linux.ports.arm.omap/91317

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2013-01-19 09:58:33 +00:00
Daniel Mack
ccf04c5100 mtd: omap-nand: pass device_node in platform data
Pass an optional device_node pointer in the platform data, which in turn
will be put into a mtd_part_parser_data. This way, code that sets up the
platform devices can pass along the node from DT so that the partitions
can be parsed.

For non-DT boards, this change has no effect.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Artem Bityutskiy <dedekind1@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-01-14 09:55:19 -08:00
Kees Cook
5d0e137dc0 drivers/mtd/nand: remove depends on CONFIG_EXPERIMENTAL
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: David Woodhouse <dwmw2@infradead.org>
CC: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
CC: Huang Shijie <b32955@freescale.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2013-01-11 11:38:07 -08:00
Sergei Shtylyov
7a9c838887 mtd: davinci_nand: fix modular build with CONFIG_OF=y
Commit cdeadd712f (mtd: nand: davinci: add OF
support for davinci nand controller) has never been really build tested with
the driver as a module.  When the driver is built-in, the missing semicolon
after structure initializer is "compensated" by MODULE_DEVICE_TABLE() macro
being empty and so the initializer using the trailing semicolon on the next
line; when the driver is built as a module, compilation error ensues, and as
the 'davinci_all_defconfig' has the NAND driver modular, this error prevents
DaVinci family kernel from building...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@vger.kernel.org # 3.7
2013-01-11 16:53:24 +00:00
Bartlomiej Zolnierkiewicz
d1806a5c4d mtd: fsmc_nand: add missing DMA unmap to dma_xfer()
Make dma_xfer() do DMA unmapping itself and fix handling
of failure cases.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Vipin Kumar <vipin.kumar@st.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <djbw@fb.com>
2013-01-07 22:04:59 -08:00
Greg Kroah-Hartman
d892994280 Drivers: mtd: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, and __devexit
from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:03 -08:00
Rafał Miłecki
5a40b5fb2b mtd: bcm47xxnflash: increase NFLASH_READY_RETRIES
Recently imlemented writing support has shown that current num of
retries is too low. Writing requires longer waiting than simple reading.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-12-24 16:55:51 +00:00
Linus Torvalds
ca2a88f56a Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd
Pull MTD updates from David Woodhouse:
 - Various cleanups especially in NAND tests
 - Add support for NAND flash on BCMA bus
 - DT support for sh_flctl and denali NAND drivers
 - Kill obsolete/superceded drivers (fortunet, nomadik_nand)
 - Fix JFFS2 locking bug in ENOMEM failure path
 - New SPI flash chips, as usual
 - Support writing in 'reliable mode' for DiskOnChip G4
 - Debugfs support in nandsim

* tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits)
  mtd: nand: typo in nand_id_has_period() comments
  mtd: nand/gpio: use io{read,write}*_rep accessors
  mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited.
  mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems
  mtd: nand/docg4: fix and improve read of factory bbt
  mtd: nand/docg4: reserve bb marker area in ecclayout
  mtd: nand/docg4: add support for writing in reliable mode
  mtd: mxc_nand: reorder part_probes to let cmdline override other sources
  mtd: mxc_nand: fix unbalanced clk_disable() in error path
  mtd: nandsim: Introduce debugfs infrastructure
  mtd: physmap_of: error checking to prevent a NULL pointer dereference
  mtg: docg3: potential divide by zero in doc_write_oob()
  mtd: bcm47xxnflash: writing support
  mtd: tests/read: initialize buffer for whole next page
  mtd: at91: atmel_nand: return bit flips for the PMECC read_page()
  mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c
  mtd: nand: onfi need to be probed in 8 bits mode
  mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width
  mtd: nand: print flash size during detection
  mted: nand_wait_ready timeout fix
  ...
2012-12-19 12:47:41 -08:00
Akinobu Mita
7e45bf83f4 mtd: nandsim: use prandom_bytes
This also removes unnecessary memset call which is immediately overwritten
with random bytes.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Laight <david.laight@aculab.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:26 -08:00
Linus Torvalds
a2013a13e6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial branch from Jiri Kosina:
 "Usual stuff -- comment/printk typo fixes, documentation updates, dead
  code elimination."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  HOWTO: fix double words typo
  x86 mtrr: fix comment typo in mtrr_bp_init
  propagate name change to comments in kernel source
  doc: Update the name of profiling based on sysfs
  treewide: Fix typos in various drivers
  treewide: Fix typos in various Kconfig
  wireless: mwifiex: Fix typo in wireless/mwifiex driver
  messages: i2o: Fix typo in messages/i2o
  scripts/kernel-doc: check that non-void fcts describe their return value
  Kernel-doc: Convention: Use a "Return" section to describe return values
  radeon: Fix typo and copy/paste error in comments
  doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
  various: Fix spelling of "asynchronous" in comments.
  Fix misspellings of "whether" in comments.
  eisa: Fix spelling of "asynchronous".
  various: Fix spelling of "registered" in comments.
  doc: fix quite a few typos within Documentation
  target: iscsi: fix comment typos in target/iscsi drivers
  treewide: fix typo of "suport" in various comments and Kconfig
  treewide: fix typo of "suppport" in various comments
  ...
2012-12-13 12:00:02 -08:00
Linus Torvalds
a11da7df65 Merge tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC power management and clock changes from Olof Johansson:
 "This branch contains a largeish set of updates of power management and
  clock setup.  The bulk of it is for OMAP/AM33xx platforms, but also a
  few around hotplug/suspend/resume on Exynos.

  It includes a split-up of some of the OMAP clock data into separate
  files which adds to the diffstat, but gross delta is fairly reasonable."

* tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
  ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
  ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
  watchdog: OMAP: fixup for ARM multiplatform support
  ARM: EXYNOS: Add flush_cache_all in suspend finisher
  ARM: EXYNOS: Remove scu_enable from cpuidle
  ARM: EXYNOS: Fix soft reboot hang after suspend/resume
  ARM: EXYNOS: Add support for rtc wakeup
  ARM: EXYNOS: fix the hotplug for Cortex-A15
  ARM: OMAP2+: omap_device: Correct resource handling for DT boot
  ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
  ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
  ARM: OMAP2+: PRM: initialize some PRM functions early
  ARM: OMAP2+: voltage: fixup oscillator handling when CONFIG_PM=n
  ARM: OMAP4: USB: power down MUSB PHY during boot
  ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP2xxx: clock: drop obsolete clock data
  ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
  ARM: AM33xx: clock: drop obsolete clock data
  ARM: OMAP3xxx: clk: drop obsolete clock data
  ...
2012-12-13 10:58:20 -08:00
Linus Torvalds
b8edf848e9 Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform conversion patches from Olof Johansson:
 "Here are more patches in the progression towards multiplatform, sparse
  irq conversions in particular.

  Tegra has a handful of cleanups and general groundwork, but is not
  quite there yet on full enablement.

  Platforms that are enabled through this branch are VT8500 and Zynq.
  Note that i.MX was converted in one of the earlier cleanup branches as
  well (before we started a separate topic for multiplatform).  And both
  new platforms for this merge window, sunxi and bcm, were merged with
  multiplatform support enabled."

Fix up conflicts mostly as per Olof.

* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  ARM: zynq: Remove all unused mach headers
  ARM: zynq: add support for ARCH_MULTIPLATFORM
  ARM: zynq: make use of debug_ll_io_init()
  ARM: zynq: remove TTC early mapping
  ARM: tegra: move debug-macro.S to include/debug
  ARM: tegra: don't include iomap.h from debug-macro.S
  ARM: tegra: decouple uncompress.h and debug-macro.S
  ARM: tegra: simplify DEBUG_LL UART selection options
  ARM: tegra: select SPARSE_IRQ
  ARM: tegra: enhance timer.c to get IO address from device tree
  ARM: tegra: enhance timer.c to get IRQ info from device tree
  ARM: timer: fix checkpatch warnings
  ARM: tegra: add TWD to device tree
  ARM: tegra: define DT bindings for and instantiate RTC
  ARM: tegra: define DT bindings for and instantiate timer
  clocksource/mtu-nomadik: use apb_pclk
  clk: ux500: Register mtu apb_pclocks
  ARM: plat-nomadik: convert platforms to SPARSE_IRQ
  mfd/db8500-prcmu: use the irq_domain_add_simple()
  mfd/ab8500-core: use irq_domain_add_simple()
  ...
2012-12-13 10:57:16 -08:00
Brian Norris
d4d4f1bf6a mtd: nand: typo in nand_id_has_period() comments
The simple example provided in the comments for nand_id_has_period()
actually has a period of 3, not 2. Silly mistake...

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-13 13:39:45 +02:00
Matthew Leach
8204536207 mtd: nand/gpio: use io{read,write}*_rep accessors
The {read,write}s{b,w,l} operations are not defined by all
architectures and are being removed from the asm-generic/io.h
interface.

This patch replaces the usage of these string functions in the mtd
gpio accessors with io{read,write}{8,16,32}_rep calls instead.

Signed-off-by: Matthew Leach <matthew@mattleach.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-13 13:39:44 +02:00
Wolfram Sang
6f2a6a5256 mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems
It could happen (1 out of 100 times) that NAND did not start up
correctly after warm rebooting, so the kernel could not find the UBI or
DMA timed out due to a stalled BCH. When resetting BCH together with
GPMI, the issue could not be observed anymore (after 10000+ reboots). We
probably need the consistent state already before sending any command to
NAND, even when no ECC is needed. I chose to keep the extra reset for
BCH when changing the flash layout to be on the safe side.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Huang Shijie <b32955@freescale.com>
Cc: stable@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-13 13:39:32 +02:00
Linus Torvalds
d027db132b Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC updates from Olof Johansson:
 "This contains the bulk of new SoC development for this merge window.

  Two new platforms have been added, the sunxi platforms (Allwinner A1x
  SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
  series of ARMv7 platforms from them, where the hope is that we can
  keep the platform code generic enough to have them all share one mach
  directory.  The new Broadcom platform is contributed by Christian
  Daudt.

  Highbank has grown support for Calxeda's next generation of hardware,
  ECX-2000.

  clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
  also taken on maintainership of the platform.

  Beyond this there has been a bunch of work from a number of people on
  converting more platforms to IRQ domains, pinctrl conversion, cleanup
  and general feature enablement across most of the active platforms."

Fix up trivial conflicts as per Olof.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
  mfd: vexpress-sysreg: Remove LEDs code
  irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
  clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
  irq: versatile: delete dangling variable
  ARM: sunxi: add missing include for mdelay()
  ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
  ARM: dts: add node for PL330 MDMA1 controller for exynos4
  ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
  ARM: EXYNOS: add UART3 to DEBUG_LL ports
  ARM: S3C24XX: Add clkdev entry for camif-upll clock
  ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
  ARM: sunxi: Add missing sun4i.dtsi file
  pinctrl: samsung: Do not initialise statics to 0
  ARM i.MX6: remove gate_mask from pllv3
  ARM i.MX6: Fix ethernet PLL clocks
  ARM i.MX6: rename PLLs according to datasheet
  ARM i.MX6: Add pwm support
  ARM i.MX51: Add pwm support
  ARM i.MX53: Add pwm support
  ARM: mx5: Replace clk_register_clkdev with clock DT lookup
  ...
2012-12-12 12:05:15 -08:00
Linus Torvalds
d01e4afdbb Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups on various subarchitectures from Olof Johansson:
 "Cleanup patches for various ARM platforms and some of their associated
  drivers.  There's also a branch in here that enables Freescale i.MX to
  be part of the multiplatform support -- the first "big" SoC that is
  moved over (more multiplatform work comes in a separate branch later
  during the merge window)."

Conflicts fixed as per Olof, including a silent semantic one in
arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to
omap3xxx_restart(), and a new user of the old name was added).

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits)
  ARM: omap: fix typo on timer cleanup
  ARM: EXYNOS: Remove unused regs-mem.h file
  ARM: EXYNOS: Remove unused non-dt support for dwmci controller
  ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan
  ARM: OMAP3: cm-t3517: use GPTIMER for system clock
  ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
  ARM: SAMSUNG: use devm_ functions for ADC driver
  ARM: EXYNOS: no duplicate mask/unmask in eint0_15
  ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443
  ARM: EXYNOS: Remove i2c0 resource information and setting of device names
  ARM: Kirkwood: checkpatch cleanups
  ARM: Kirkwood: Fix sparse warnings.
  ARM: Kirkwood: Remove unused includes
  ARM: kirkwood: cleanup lsxl board includes
  ARM: integrator: use BUG_ON where possible
  ARM: integrator: push down SC dependencies
  ARM: integrator: delete static UART1 mapping
  ARM: integrator: delete SC mapping on the CP
  ARM: integrator: remove static CP syscon mapping
  ARM: integrator: remove static AP syscon mapping
  ...
2012-12-12 11:51:39 -08:00
Linus Torvalds
8287361abc Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC Header cleanups from Olof Johansson:
 "This is a collection of header file cleanups, mostly for OMAP and
  AT91, that keeps moving the platforms in the direction of
  multiplatform by removing the need for mach-dependent header files
  used in drivers and other places."

Fix up mostly trivial conflicts as per Olof.

* tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits)
  ARM: OMAP2+: Move iommu/iovmm headers to platform_data
  ARM: OMAP2+: Make some definitions local
  ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
  ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
  ARM: OMAP2+: Move iopgtable header to drivers/iommu/
  ARM: OMAP: Merge iommu2.h into iommu.h
  atmel: move ATMEL_MAX_UART to platform_data/atmel.h
  ARM: OMAP: Remove omap_init_consistent_dma_size()
  arm: at91: move at91rm9200 rtc header in drivers/rtc
  arm: at91: move reset controller header to arm/arm/mach-at91
  arm: at91: move pit define to the driver
  arm: at91: move at91_shdwc.h to arch/arm/mach-at91
  arm: at91: move board header to arch/arm/mach-at91
  arn: at91: move at91_tc.h to arch/arm/mach-at91
  arm: at91 move at91_aic.h to arch/arm/mach-at91
  arm: at91 move board.h to arch/arm/mach-at91
  arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
  arm: at91: drop machine defconfig
  ARM: OMAP: Remove NEED_MACH_GPIO_H
  ARM: OMAP: Remove unnecessary mach and plat includes
  ...
2012-12-12 11:45:16 -08:00
Mike Dunn
3c9c6d657a mtd: nand/docg4: fix and improve read of factory bbt
This patch does two things related to reading the factory badblock table during
initialization: (1) fix error where a non-zero return code from
docg4_read_page() is assumed to be an error (it was later changed to be
max_bitflips; thanks to Brian Norris for bringing this to my attention a while
back), and (2) if there is an error reading the factory bbt, it tries reading
another (redundant) factory bbt table.

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-12 17:03:42 +02:00
Mike Dunn
440b1d73b1 mtd: nand/docg4: reserve bb marker area in ecclayout
Modify the nand_ecclayout to place the two bb marker bytes in the oob region
off-limits to the user.

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-12 17:03:32 +02:00