Add a driver for NAND devices connected to the NEMC on JZ4780 SoCs, as
well as the hardware BCH controller. DMA is not currently implemented.
While older 47xx SoCs also have a BCH controller, they are incompatible
with the one in the 4780 due to differing register/bit positions, which
would make implementing a common driver for them quite messy.
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Brian: fixed a few small mistakes]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This driver supports Freescale NFC (NAND flash controller) found on
Vybrid (VF610), MPC5125, MCF54418 and Kinetis K70. The driver has
been tested using 8-bit and 16-bit NAND interface on the ARM based
Vybrid SoC VF500 and VF610 platform.
parameter page reading.
Limitations:
- Untested on MPC5125 and M54418.
- DMA and pipelining not used.
- 2K pages or less.
- No chip select, one NAND chip per controller.
- No hardware ECC.
Some paths have been hand-optimized and evaluated by measurements
made using mtd_speedtest.ko on a 100MB MTD partition.
Colibri VF50
eb write % eb read % page write % page read %
rel/opt 5175 11537 4560 11039
opt 5164 -0.21 11420 -1.01 4737 +3.88 10918 -1.10
none 5113 -1.20 11352 -1.60 4490 -1.54 10865 -1.58
Colibri VF61
eb write % eb read % page write % page read %
rel/opt 5766 13096 5459 12846
opt 5883 +2.03 13064 -0.24 5561 +1.87 12802 -0.34
none 5701 -1.13 12980 -0.89 5488 +0.53 12735 -0.86
rel = using readl_relaxed/writel_relaxed in optimized paths
opt = hand-optimized by combining multiple accesses into one read/write
The measurements have not been statistically verfied, hence use them
with care. The author came to the conclusion that using the relaxed
variants of readl/writel are not worth the additional code.
Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Tested-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
As both omap2 onenand and omap2 nand driver modules are
named the same i.e. "omap2.ko", only one of them gets shipped
during MODPOST if both are configured as loadable modules.
To avoid this ambiguity let's ship the omap2 nand
driver as "omap2_nand.ko"
Reported by Pierre Neyron via github
https://github.com/beagleboard/linux/issues/40
Cc: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This core originated in Set-Top Box chips (BCM7xxx) but is used in a
variety of other Broadcom chips, including some BCM63xxx, BCM33xx, and
iProc/Cygnus. It's been used only on ARM and MIPS SoCs, so restrict it
to those architectures.
There are multiple revisions of this core throughout the years, and
almost every version broke register compatibility in some small way, but
with some effort, this driver is able to support v4.0, v5.0, v6.x, v7.0,
and v7.1. It's been tested on v5.0, v6.0, v6.1, v7.0, and v7.1 recently,
so there hopefully are no more lurking inconsistencies.
This patch adds just some library support, on which platform drivers can
be built.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
This patch adds the support for hisilicon 504 NAND controller which is now used
by Hisilicon Soc Hip04.
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Add support for the sunxi NAND Flash Controller (NFC).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Brian: tweaked to fix ecc->steps issue]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit adds a hidden option to build the omap_elm as a module, if
omap2_nand is a module (and similarly in the built-in case).
This fixes the following build error when omap2_nand is chosen built-in,
and omap_elm is chosen as a module:
drivers/built-in.o: In function `omap_nand_probe':
drivers/mtd/nand/omap2.c:2010: undefined reference to `elm_config'
drivers/mtd/nand/omap2.c:1980: undefined reference to `elm_config'
drivers/mtd/nand/omap2.c:1927: undefined reference to `elm_config'
drivers/built-in.o: In function `omap_elm_correct_data':
drivers/mtd/nand/omap2.c:1444: undefined reference to `elm_decode_bch_error_page'
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
The ELM driver is only used by the OMAP NAND driver, so let's move it
to the nand/ directory. Additionally, let's rename it to a less confusing
name, so the module is built with a meaningful name, instead of the previous
'elm.ko'.
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Add a converter to retrieve NAND timings from an ONFI NAND timing mode.
At the moment, only SDR NAND timings are supported.
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
The driver has very low utility. Devices in question are limited to
about 400kB/s and the only known user (me) discarded the hardware
several years back.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This driver is marked as broken for 2 years, and no one cares to make it
compile and work. Now it is time to zap it.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This driver has been marked as broken for long time and it depends on a
non-existing PPCHAMELEONEVB Kconfig symbol.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The AG-AND support is about to be removed from MTD, because this technology is
dead for long time. Thus, remove this the only AG-AND driver we have in the
kernel tree.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
- 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
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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
...
BCMA bus can contain NAND flash memory, it's registered in system as
platform device. This adds required hooks and place for controler
specific drivers.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This patch provide migration to using "gpio-nand" driver instead of using
special driver for handling NAND memory.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch provide migration to using "gpio-nand" and "basic-mmio-gpio"
drivers instead of using special driver for handling NAND memory.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>
The nomadik_nand driver is really just a subset of the FSMC
NAND driver, and there are no users anymore so let's delete
it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Add a device tree version of the Denali NAND driver. Based
on an original patch from Jamie Iles to add a MMIO version
of this driver.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
The Denali controller can also be found in SoC devices attached to a
simple bus. Move the PCI specific parts into denali_pci so that we can
add a denali_dt that uses the same driver but for a device tree driver
instead of a PCI based device.
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This driver is being removed as part of the cleanup of the bcmring
SoC from mainline as it is no longer maintained.
Signed-off-by: Christian Daudt <csd@broadcom.com>
Reviewed-by: Jiandong Zheng <jdzheng@broadcom.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The driver uses plat_nand. As the platform_device is loaded from DT, we need
to lookup the node and attach our xway specific "struct platform_nand_data"
to it.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This patch adds a driver for the MLC NAND controller of the LPC32xx SoC.
[dwmw2: 21st century pedantry]
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This patch adds support for the SLC NAND controller inside the LPC32xx SoC.
[dwmw2: 21st century pedantry]
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Artem's cleanup of the MTD API continues apace.
Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others.
More work on DiskOnChip G3, new driver for DiskOnChip G4.
Clean up debug/warning printks in JFFS2 to use pr_<level>.
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Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6
Pull MTD changes from David Woodhouse:
- Artem's cleanup of the MTD API continues apace.
- Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst
others.
- More work on DiskOnChip G3, new driver for DiskOnChip G4.
- Clean up debug/warning printks in JFFS2 to use pr_<level>.
Fix up various trivial conflicts, largely due to changes in calling
conventions for things like dmaengine_prep_slave_sg() (new inline
wrapper to hide new parameter, clashing with rewrite of previously last
parameter that used to be an 'append' flag, and is now a bitmap of
'unsigned long flags').
(Also some header file fallout - like so many merges this merge window -
and silly conflicts with sparse fixes)
* tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits)
mtd: docg3 add protection against concurrency
mtd: docg3 refactor cascade floors structure
mtd: docg3 increase write/erase timeout
mtd: docg3 fix inbound calculations
mtd: nand: gpmi: fix function annotations
mtd: phram: fix section mismatch for phram_setup
mtd: unify initialization of erase_info->fail_addr
mtd: support ONFI multi lun NAND
mtd: sm_ftl: fix typo in major number.
mtd: add device-tree support to spear_smi
mtd: spear_smi: Remove default partition information from driver
mtd: Add device-tree support to fsmc_nand
mtd: fix section mismatch for doc_probe_device
mtd: nand/fsmc: Remove sparse warnings and errors
mtd: nand/fsmc: Add DMA support
mtd: nand/fsmc: Access the NAND device word by word whenever possible
mtd: nand/fsmc: Use dev_err to report error scenario
mtd: nand/fsmc: Use devm routines
mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform
mtd: fsmc_nand: add pm callbacks to support hibernation
...
This patch adds a driver for the M-Sys / Sandisk diskonchip G4 nand flash found
in various smartphones and PDAs, among them the Palm Treo680, HTC Prophet and
Wizard, Toshiba Portege G900, Asus P526, and O2 XDA Zinc. It was tested on the
Treo 680, but should work generically.
Since v3, this patch adds power management functions, a scan of the factory bad
block table during initialization, several fixes, and more extensive testing.
Also, the platform data header file, which only contained partitioning
information, was removed. Command-line partitioning can be used, at least until
an mtd parser is written for the saftl format with which these chips are
shipped.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Integrated Flash Controller(IFC) can be used to hook NAND Flash
chips using NAND Flash Machine available on it.
Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Liu Shuo <b35362@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
add the GPMI-NAND driver in the relevant Kconfig and Makefile in the MTD.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Koen Beel <koen.beel@barco.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
EDB7312 isn't supported by mainline kernel, so drop it now.
If the board support will ever be submitted to mainline,
one can revert this commit.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This patch adds software BCH ECC support to mtd, in order to handle recent
NAND device ecc requirements (4 bits or more).
It does so by adding a new ecc mode (NAND_ECC_SOFT_BCH) for use by board
drivers, and a new Kconfig option to enable BCH support. It relies on the
generic BCH library introduced in a previous patch.
When a board driver uses mode NAND_ECC_SOFT_BCH, it should also set fields
chip->ecc.size and chip->ecc.bytes to select BCH ecc data size and required
error correction capability. See nand_bch_init() documentation for details.
It has been tested on the following platforms using mtd-utils, UBI and
UBIFS: x86 (with nandsim), arm926ejs.
Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This is the same driver submitted by ST Micros SPEAr team but
generalized and tested on the ST-Ericsson U300. It probably
easily works on the NHK8815 too.
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
There is more work to be done on this but it is basically working now.
Signed-off-by: Jason Roberts <jason.e.roberts@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This way drivers could use ecc routines without depedency on whole nand
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This adds a driver for Ricoh R5C852 xD card reader.
This reader is a part of larger mulifunction chip
and found at least in R5C832
Driver is complete, but bewere of the fact that some
(probably only type M) xD cards are 'fake' which means that
they have an on board CPU and expose emulated nand command set
These cards don't even store the oob area on the flash,
but generate it on the fly from something else.
Thus they demand to have proper values written in the oob area,
and therefore only useful with SmartMedia FTL.
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This small module implements few helpers that are usefull
for nand drivers for SmartMedia/xD card readers.
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Adds NAND Flash Controller driver for MPC5121 Revision 2.
All device features, except hardware ECC and power management,
are supported.
Signed-off-by: Piotr Ziecik <kosmo@semihalf.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The ts72xx platform has been updated to use the generic platform nand
driver (plat_nand.c). This removes the now-defunct ts7250.c nand driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Matthieu Crapet <mcrapet@gmail.com>
Cc: Jesse Off <joff@embeddedARM.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The platform has never been fully merged
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Koeller <thomas.koeller@baslerweb.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Add w90p910 NAND driver for w90p910 evaluation board
based on w90p910,there is a K8F1G08 NAND on my board.
[dwmw2: depend on MTD_PARTITIONS]
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This driver is present in the OMAP tree, now pushing it to MTD.
Original author(s):
Jian Zhang <jzhang@ti.com>
Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Cc: Jian Zhang <jzhang@ti.com>
Cc: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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>
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>
The patch adds support for NAND flashes connected to GPIOs.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Several Renesas SuperH CPU has FLCTL. The FLCTL support NAND Flash.
This driver support SH7723.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
