linux-stable.git/Documentation/devicetree/bindings/mtd, branch linux-4.0.y

Merge tag 'for-linus-20150216' of git://git.infradead.org/linux-mtd

2015-02-18T16:01:44+00:00

Pull MTD updates from Brian Norris:
 "NAND:

   - Add new Hisilicon NAND driver for Hip04
   - Add default reboot handler, to ensure all outstanding erase
     transactions complete in time
   - jz4740: convert to use GPIO descriptor API
   - Atmel: add support for sama5d4
   - Change default bitflip threshold to 75% of correction strength
   - Miscellaneous cleanups and bugfixes

  SPI NOR:

   - Freescale QuadSPI:
   - Fix a few probe() and remove() issues
   - Add a MAINTAINERS entry for this driver
   - Tweak transfer size to increase read performance
   - Add suspend/resume support
   - Add Micron quad I/O support
   - ST FSM SPI: miscellaneous fixes

  JFFS2:

   - gracefully handle corrupted 'offset' field found on flash

  Other:

   - bcm47xxpart: add tweaks for a few new devices
   - mtdconcat: set return lengths properly for mtd_write_oob()
   - map_ram: enable use with mtdoops
   - maps: support fallback to ROM/UBI for write-protected NOR flash"

* tag 'for-linus-20150216' of git://git.infradead.org/linux-mtd: (46 commits)
  mtd: hisilicon: && vs & typo
  jffs2: fix handling of corrupted summary length
  mtd: hisilicon: add device tree binding documentation
  mtd: hisilicon: add a new NAND controller driver for hisilicon hip04 Soc
  mtd: avoid registering reboot notifier twice
  mtd: concat: set the return lengths properly
  mtd: kconfig: replace PPC_OF with PPC
  mtd: denali: remove unnecessary stubs
  mtd: nand: remove redundant local variable
  MAINTAINERS: add maintainer entry for FREESCALE QUAD SPI driver
  mtd: fsl-quadspi: improve read performance by increase AHB transfer size
  mtd: fsl-quadspi: Remove unnecessary 'map_failed' label
  mtd: fsl-quadspi: Remove unneeded success/error messages
  mtd: fsl-quadspi: Fix the error paths
  mtd: nand: omap: drop condition with no effect
  mtd: nand: jz4740: Convert to GPIO descriptor API
  mtd: nand: Request strength instead of bytes for soft BCH
  mtd: nand: default bitflip-reporting threshold to 75% of correction strength
  mtd: atmel_nand: introduce a new compatible string for sama5d4 chip
  mtd: atmel_nand: return max bitflips in all sectors in pmecc_correction()
  ...

mtd: hisilicon: add device tree binding documentation

2015-02-08T08:20:20+00:00

This patch adds the related dts binding document for Hisilicon 504 NAND
controller.

Signed-off-by: Zhou Wang 
Signed-off-by: Brian Norris

Documentation: devicetree: Fix double words in Doumentation/devicetree

2015-01-28T22:13:11+00:00

This patch fix multiple words such as "the the" and "which which"
in Documentation/devicetree.

Signed-off-by: Masanari Iida 
Signed-off-by: Jonathan Corbet

mtd: atmel_nand: introduce a new compatible string for sama5d4 chip

2015-01-20T20:47:01+00:00

Since in SAMA5D4 chip, the PMECC can correct bit flips in erased page.
So we add a DT property to indicate this hardware character.

If the PMECC support correct bitflip erased page (all data are 0xff).
Then we can use the PMECC correct the page and skip the erased page
check.

Signed-off-by: Josh Wu 
Signed-off-by: Brian Norris

mtd: map_rom: Support UBI on ROM

2015-01-10T07:24:27+00:00

UBI needs to know the physical erase block size, even on read-only
devices, since it defines the on-device layout. Use a device-tree
provided value to support previously written UBI on read-only NOR.

UBI also needs a non-zero writebufsize, so we set it to one.

Note: This was implemented because hardware write-protected CFI
      NOR cannot be probed for the physical erase block size.

Signed-off-by: Joe Schultz 
Signed-off-by: Aaron Sierra 
[Brian: removed unneeded #ifdef, note 'optional' erase-size property]
Signed-off-by: Brian Norris

Documentation: fsl-quadspi: Add an entry for the imx6sx compatible string

2015-01-09T23:26:35+00:00

"fsl,imx6sx-qspi" is also a valid compatible string, so add an entry for it.

Signed-off-by: Fabio Estevam 
Signed-off-by: Brian Norris

mtd: gpmi: Remove "We support only one NAND chip" from bindings doc

2014-12-22T20:58:24+00:00

This sentence "We support only one NAND chip now" is not true any more.
Multiple chips are supported. So lets remove this sentence to not
confuse anyone.

Signed-off-by: Stefan Roese 
Cc: Huang Shijie 
Cc: Brian Norris 
Signed-off-by: Brian Norris

mtd: atmel_nand: make PMECC lookup table and offset property optional

2014-11-05T22:44:25+00:00

If there is no PMECC lookup table stored in ROM, or lookup table offset is
not specified, PMECC driver should build it in DDR by itself.

That make the PMECC driver work for some board which doesn't have PMECC
lookup table in ROM.

The PMECC use the BCH algorithm, so based on the build_gf_tables()
function in lib/bch.c, we can build the Galois Field lookup table.

For more information can refer to section 5.4 of PMECC controller
application note:
	http://www.atmel.com/images/doc11127.pdf

Signed-off-by: Josh Wu 
Cc: devicetree@vger.kernel.org
Signed-off-by: Brian Norris

devicetree: bindings: improve description for GPIO assisted NAND flash

2014-11-05T07:53:06+00:00

Expand the description of the 'gpios' property in the GPIO assisted
NAND flash binding, to explicitly list the required GPIO pin references
and their order.

Update the example section to individually bracket the GPIO references,
and capitalize the signal names for improved readability.

Signed-off-by: Gerhard Sittig 
Signed-off-by: Brian Norris

mtd: nand: add sunxi NFC dt bindings doc

2014-10-29T17:08:01+00:00

Add the sunxi NAND Flash Controller dt bindings documentation.

Signed-off-by: Boris Brezillon 
Signed-off-by: Brian Norris