61 Commits

Author SHA1 Message Date
Miquel Raynal
08d8c62164 mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller
This hardware controller is embedded in XilinX Zynq-7000 SoCs and has
partial support for Hamming ECC correction.

This work is inspired from the original contributions of Punnaiah
Choudary Kalluri and Naga Sureshkumar Relli.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Michael Walle <michael@walle.cc> [on zynq-7000]
Link: https://lore.kernel.org/linux-mtd/20210610082040.2075611-19-miquel.raynal@bootlin.com
2021-06-18 09:45:21 +02:00
Linus Torvalds
69e9b12a27 MTD core changes:
* Initial support for BCM4908 partitions
 
 Raw NAND controller drivers:
 * Intel: Fix an error handling path in 'ebu_dma_start()'
 * Tango: Remove the driver
 * Marvell: Convert comma to semicolon
 * MXC: Convert comma to semicolon
 * Qcom: Add support for Qcom SMEM parser
 
 Related MTD changes:
 * parsers: Add Qcom SMEM parser
 
 SPI NOR core changes:
 * Add non-uniform erase fixes.
 * Add Global Block Unlock command. It is defined by few flash
  vendors, and it is used for now just by sst.
 
 SPI NOR controller drivers changes:
 * intel-spi: Add support for Intel Alder Lake-P SPI serial flash.
 * hisi-sfc: Put child node np on error path.
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Merge tag 'mtd/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Richard Weinberger:
 "MTD core changes:
   - Initial support for BCM4908 partitions

  Raw NAND controller drivers:
   - Intel: Fix an error handling path in 'ebu_dma_start()'
   - Tango: Remove the driver
   - Marvell: Convert comma to semicolon
   - MXC: Convert comma to semicolon
   - Qcom: Add support for Qcom SMEM parser

  Related MTD changes:
   - parsers: Add Qcom SMEM parser

  SPI NOR core changes:
   - Add non-uniform erase fixes.
   - Add Global Block Unlock command. It is defined by few flash
     vendors, and it is used for now just by sst.

  SPI NOR controller drivers changes:
   - intel-spi: Add support for Intel Alder Lake-P SPI serial flash.
   - hisi-sfc: Put child node np on error path"

* tag 'mtd/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (23 commits)
  dt-bindings: mtd: add binding for BCM4908 partitions
  dt-bindings: mtd: move partition binding to its own file
  mtd: spi-nor: sst: Add support for Global Unlock on sst26vf
  mtd: spi-nor: Add Global Block Unlock command
  mtd: spi-nor: core: Add erase size check for erase command initialization
  mtd: spi-nor: core: Fix erase type discovery for overlaid region
  mtd: spi-nor: sfdp: Fix last erase region marking
  mtd: spi-nor: sfdp: Fix wrong erase type bitmask for overlaid region
  mtd: rawnand: intel: Fix an error handling path in 'ebu_dma_start()'
  mtd: rawnand: tango: Remove the driver
  mtd: rawnand: marvell: convert comma to semicolon
  mtd: st_spi_fsm: convert comma to semicolon
  mtd: convert comma to semicolon
  mtd: parsers: afs: Fix freeing the part name memory in failure
  mtd: parser: imagetag: fix error codes in bcm963xx_parse_imagetag_partitions()
  mtd: phram: use div_u64_rem to stop overwrite len in phram_setup
  mtd: remove redundant assignment to pointer eb
  mtd: spi-nor: hisi-sfc: Put child node np on error path
  mtd: spi-nor: intel-spi: Add support for Intel Alder Lake-P SPI serial flash
  mtd: rawnand: qcom: Add support for Qcom SMEM parser
  ...
2021-02-21 13:54:33 -08:00
Arnd Bergmann
94d07f6a53 mtd: rawnand: tango: Remove the driver
The tango platform is getting removed [1], so the driver is no
longer needed.

[1] https://lore.kernel.org/linux-arm-kernel/20210120124812.2800027-1-arnd@kernel.org/T/

Cc: Marc Gonzalez <marc.w.gonzalez@free.fr>
Cc: Mans Rullgard <mans@mansr.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210120150555.1610132-1-arnd@kernel.org
2021-02-01 18:59:19 +01:00
Arnd Bergmann
ce1380c9f4 ARM: remove u300 platform
The Ericsson U300 platform was one of two ARM929 based SoC platforms for
mobile phones in ST-Ericsson after the merger of Ericsson with ST-NXP
into ST-Ericsson, the other one being the ST Nomadik.

The platform was not widely adopted in Linux based systems and was
replaced with the far superior ST-Ericsson U8500 in 2011, but Linus
Walleij kept maintaining the code for the whole time.

Linus continues to use the Nomadik machine, but decided to drop
u300 from the kernel as part of this year's spring cleaning.
Thanks for having maintained it all these years.

Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/lkml/CACRpkdbJkiHR9FSfJTH_5d_qRU1__dRXHM1TL40iqNRKbGQfrQ@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-01-20 11:42:23 +01:00
Yifeng Zhao
058e0e847d mtd: rawnand: rockchip: NFC driver for RK3308, RK2928 and others
This driver supports Rockchip NFC (NAND Flash Controller) found on RK3308,
RK2928, RKPX30, RV1108 and other SOCs. The driver has been tested using
8-bit NAND interface on the ARM based RK3308 platform.

Support Rockchip SoCs and NFC versions:
- PX30 and RK3326(NFCv900).
	ECC: 16/40/60/70 bits/1KB.
	CLOCK: ahb and nfc.
- RK3308 and RV1108(NFCv800).
	ECC: 16 bits/1KB.
	CLOCK: ahb and nfc.
- RK3036 and RK3128(NFCv622).
	ECC: 16/24/40/60 bits/1KB.
	CLOCK: ahb and nfc.
- RK3066, RK3188 and RK2928(NFCv600).
	ECC: 16/24/40/60 bits/1KB.
	CLOCK: ahb.

Supported features:
- Read full page data by DMA.
- Support HW ECC(one step is 1KB).
- Support 2 - 32K page size.
- Support 8 CS(depend on SoCs)

Limitations:
- No support for the ecc step size is 512.
- Untested on some SoCs.
- No support for subpages.
- No support for the builtin randomizer.
- The original bad block mask is not supported. It is recommended to use
  the BBT(bad block table).

Suggested-by: Johan Jonker <jbx6244@gmail.com>
Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201210002134.5686-3-yifeng.zhao@rock-chips.com
2020-12-10 22:37:33 +01:00
Ramuthevar Vadivel Murugan
0b1039f016 mtd: rawnand: Add NAND controller support on Intel LGM SoC
This patch adds the new IP of Nand Flash Controller(NFC) support
on Intel's Lightning Mountain(LGM) SoC.

DMA is used for burst data transfer operation, also DMA HW supports
aligned 32bit memory address and aligned data access by default.
DMA burst of 8 supported. Data register used to support the read/write
operation from/to device.

Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201110012333.18647-3-vadivel.muruganx.ramuthevar@linux.intel.com
2020-12-10 22:37:32 +01:00
Fabio Estevam
0f6b791955 mtd: rawnand: mxc: Remove platform data support
i.MX is a devicetree-only platform now and the existing platform data
support in this driver was only useful for old non-devicetree platforms.

Get rid of the platform data support since it is no longer used.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201110121908.19400-1-festevam@gmail.com
2020-12-10 22:37:31 +01:00
Miquel Raynal
5180a62c12 mtd: nand: ecc-hamming: Let the software Hamming ECC engine be unselected
There is no reason to always embed the software Hamming ECC engine
implementation. By default it is (with raw NAND), but we can let the
user decide.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-19-miquel.raynal@bootlin.com
2020-12-10 22:37:30 +01:00
Miquel Raynal
e5acf9c862 mtd: nand: ecc-hamming: Move Hamming code to the generic NAND layer
Hamming ECC code might be later re-used by the SPI NAND layer.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-12-miquel.raynal@bootlin.com
2020-12-10 22:37:29 +01:00
Miquel Raynal
cdbe8df5e2 mtd: nand: ecc-bch: Move BCH code to the generic NAND layer
BCH ECC code might be later re-used by the SPI NAND layer.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-3-miquel.raynal@bootlin.com
2020-11-30 09:27:32 +01:00
Miquel Raynal
c441bcd312 mtd: rawnand: Make use of the ECC framework
Just enable the ECC framework with raw NAND so that we can drop, one
by one, all the unnecessary/redundant definitions.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-17-miquel.raynal@bootlin.com
2020-09-28 15:59:49 +02:00
Richard Weinberger
6a1380271b Core changes:
* Drop useless 'depends on' in Kconfig
 * Add an extra level in the Kconfig hierarchy
 * Trivial spellings
 * Dynamic allocation of the interface configurations
 * Dropping the default ONFI timing mode
 * Various cleanup (types, structures, naming, comments)
 * Hide the chip->data_interface indirection
 * Add the generic rb-gpios property
 * Add the ->choose_interface_config() hook
 * Introduce nand_choose_best_sdr_timings()
 * Use default values for tPROG_max and tBERS_max
 * Avoid redefining tR_max and tCCS_min
 * Add a helper to find the closest ONFI mode
 * bcm63xx MTD parsers: simplify CFE detection
 
 Raw NAND controller drivers changes:
 * fsl-upm: Deprecation of specific DT properties
 * fsl_upm: Driver rework and cleanup in favor of ->exec_op()
 * Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
 * brcmnand: ECC error handling on EDU transfers
 * brcmnand: Don't default to EDU transfers
 * qcom: Set BAM mode only if not set already
 * qcom: Avoid write to unavailable register
 * gpio: Driver rework in favor of ->exec_op()
 * tango: ->exec_op() conversion
 * mtk: ->exec_op() conversion
 
 Raw NAND chip drivers changes:
 * toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
 * toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
 * toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
 * hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
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Merge tag 'nand/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next

Core changes:
* Drop useless 'depends on' in Kconfig
* Add an extra level in the Kconfig hierarchy
* Trivial spellings
* Dynamic allocation of the interface configurations
* Dropping the default ONFI timing mode
* Various cleanup (types, structures, naming, comments)
* Hide the chip->data_interface indirection
* Add the generic rb-gpios property
* Add the ->choose_interface_config() hook
* Introduce nand_choose_best_sdr_timings()
* Use default values for tPROG_max and tBERS_max
* Avoid redefining tR_max and tCCS_min
* Add a helper to find the closest ONFI mode
* bcm63xx MTD parsers: simplify CFE detection

Raw NAND controller drivers changes:
* fsl-upm: Deprecation of specific DT properties
* fsl_upm: Driver rework and cleanup in favor of ->exec_op()
* Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
* brcmnand: ECC error handling on EDU transfers
* brcmnand: Don't default to EDU transfers
* qcom: Set BAM mode only if not set already
* qcom: Avoid write to unavailable register
* gpio: Driver rework in favor of ->exec_op()
* tango: ->exec_op() conversion
* mtk: ->exec_op() conversion

Raw NAND chip drivers changes:
* toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
* toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
* toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
* hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
2020-08-07 08:54:16 +02:00
Christophe Kerello
fbd9b5437b mtd: rawnand: stm32_fmc2: get resources from parent node
FMC2 EBI support has been added. Common resources (registers base
address and clock) can now be shared between the 2 drivers using
"st,stm32mp1-fmc2-nfc" compatible string. It means that the
common resources should now be found in the parent device when EBI
node is available.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1591975362-22009-7-git-send-email-christophe.kerello@st.com
2020-07-07 20:58:21 +02:00
Christophe Kerello
51c88a8d3b mtd: rawnand: stm32_fmc2: use regmap APIs
This patch uses regmap APIs to access all FMC2 registers.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1591975362-22009-6-git-send-email-christophe.kerello@st.com
2020-07-07 20:58:19 +02:00
Miquel Raynal
6232095cc5 mtd: nand: Drop useless 'depends on' in Kconfig
Both OneNAND and raw NAND bits can't be compiled if MTD is disabled
because of the if/endif logic in drivers/mtd/Kconfig. There is no need
for an extra "depends on MTD" in their respective Kconfig files.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200529002517.3546-12-miquel.raynal@bootlin.com
2020-06-26 08:35:03 +02:00
Miquel Raynal
88ffef1b65 mtd: rawnand: arasan: Support the hardware BCH ECC engine
Add support for the hardware ECC BCH engine.

Please mind that this engine has an important limitation:
BCH implementation does not inform the user when an uncorrectable ECC
error occurs. To workaround this, we avoid using the hardware engine
in the read path and do the computation with the software BCH
implementation, which is faster than mixing hardware (for correction)
and software (for verification).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-9-miquel.raynal@bootlin.com
2020-05-26 21:37:25 +02:00
Miquel Raynal
197b88fecc mtd: rawnand: arasan: Add new Arasan NAND controller
Add the Arasan NAND controller driver. This brings only NAND
controller support. The ECC engine being a bit subtle, hardware ECC
support will be added in a second time.

This work is based on contributions from Naga Sureshkumar Relli.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-8-miquel.raynal@bootlin.com
2020-05-24 22:34:55 +02:00
Boris Brezillon
767727b927 mtd: rawnand: Remove the cmx270 NAND controller driver
The CM-X270 board has been removed, we can remove the custom NAND
driver as well.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200518163300.304732-1-boris.brezillon@collabora.com
2020-05-24 20:39:53 +02:00
Brendan Higgins
baebaa2b13 mtd: rawnand: add unspecified HAS_IOMEM dependency
Currently CONFIG_MTD_NAND_CADENCE implicitly depends on
CONFIG_HAS_IOMEM=y; consequently, on architectures without IOMEM we get
the following build error:

ld: drivers/mtd/nand/raw/cadence-nand-controller.o: in function `cadence_nand_dt_probe.cold.31':
drivers/mtd/nand/raw/cadence-nand-controller.c:2969: undefined reference to `devm_platform_ioremap_resource'
ld: drivers/mtd/nand/raw/cadence-nand-controller.c:2977: undefined reference to `devm_ioremap_resource'

Fix the build error by adding the unspecified dependency.

Reported-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 17:44:21 +01:00
Piotr Sroka
ec4ba01e89 mtd: rawnand: Add new Cadence NAND driver to MTD subsystem
Add new Cadence NAND driver to MTD subsystem

Signed-off-by: Piotr Sroka <piotrs@cadence.com>
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-04 18:02:22 +02:00
Arnd Bergmann
419a7a1f16 mtd: rawnand: remove w90x900 driver
The ARM w90x900 platform is getting removed, so this driver is obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-08-26 09:25:41 +02:00
Mason Yang
738b0ca55f mtd: rawnand: Add Macronix raw NAND controller driver
Add a driver for Macronix raw NAND controller.

Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-08-26 09:25:41 +02:00
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Anders Roxell
7019ac5d3b mtd: rawnand: fix build dependency
When enabling CONFIG_MTD_NAND_ECC_SW_BCH as a module, the
MTD_NAND_ECC_SW_BCH depends on MTD_NAND, but the module controlled by
MTD_NAND links against the module controlled by MTD_NAND_ECC_SW_BCH.
This leads to the following link failure.

aarch64-linux-gnu-ld: drivers/mtd/nand/raw/nand_base.o: in function `nand_cleanup':
../drivers/mtd/nand/raw/nand_base.c:5886: undefined reference to `nand_bch_free'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5886:(.text+0x9928): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `nand_bch_free'
aarch64-linux-gnu-ld: drivers/mtd/nand/raw/nand_base.o: in function `nand_set_ecc_soft_ops':
../drivers/mtd/nand/raw/nand_base.c:5093: undefined reference to `nand_bch_calculate_ecc'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5093:(.text+0xe914): relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21 against undefined symbol `nand_bch_calculate_ecc'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5093: undefined reference to `nand_bch_calculate_ecc'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5094: undefined reference to `nand_bch_correct_data'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5094:(.text+0xe934): relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21 against undefined symbol `nand_bch_correct_data'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5094: undefined reference to `nand_bch_correct_data'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5148: undefined reference to `nand_bch_init'
aarch64-linux-gnu-ld: ../drivers/mtd/nand/raw/nand_base.c:5148:(.text+0xebbc): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `nand_bch_init'

Rework CONFIG_MTD_NAND_ECC_SW_BCH from tristate to bool,
and then link the nand_bch.o file into nand.ko if its enabled.

Fixes: 51ef1d0b2095 ("mtd: nand: Clarify Kconfig entry for software BCH ECC algorithm")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:01 +02:00
Miquel Raynal
72c5af0027 mtd: rawnand: Clarify Kconfig entry MTD_NAND
MTD_NAND is large and encloses much more than what the symbol is
actually used for: raw NAND. Clarify the symbol by naming it
MTD_RAW_NAND instead.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Miquel Raynal
e787be1f1d mtd: rawnand: Change Kconfig titles and re-order a bit the list
This list is a mess, while some items should probably not be in the
raw/ sub-directory, others are definitely at the right place but not
with the right description. Write uniform titles and group IPs by
vendor.

NAND controllers will appear under the list named "Raw/parallel NAND
flash controllers" while the other drivers will appear under
"Misc". Software ECC engines will later be moved out of the raw/
directory.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Miquel Raynal
9bb94643b9 mtd: nand: Clarify Kconfig entry for software Hamming ECC entries
The software Hamming ECC correction implementation is referred as
MTD_NAND_ECC which is too generic. Rename it
MTD_NAND_ECC_SW_HAMMING. Also rename MTD_NAND_ECC_SMC which is an
SMC quirk in the Hamming implementation as
MTD_NAND_ECC_SW_HAMMING_SMC.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Miquel Raynal
714c068228 mtd: nand: Clarify Kconfig entry for software BCH ECC algorithm
There is no point in having two distinct entries, merge them and
rename the symbol for more clarity: MTD_NAND_ECC_SW_BCH

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-04-18 08:54:00 +02:00
Boris Brezillon
a7ab085d7c mtd: rawnand: Initialize the nand_device object
In order to use some of the nanddev_xxx() helpers, we need to
initialize the nand_device object embedded in nand_chip using
nanddev_init(). This requires implementing nand_ops.

We also drop useless mtd->xxx initialization when they're already taken
case of by nanddev_init().

Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
2019-04-08 10:21:12 +02:00
Paul Cercueil
1838a7b31f mtd: rawnand: Move drivers for Ingenic SoCs to subfolder
Before adding support for more SoCs and seeing the number of files for
these drivers grow, we move them to their own subfolder to keep it tidy.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-03-21 16:56:18 +01:00
Liang Yang
8fae856c53 mtd: rawnand: meson: add support for Amlogic NAND flash controller
Add initial support for the Amlogic NAND flash controller which is
available on Meson SoCs.

Signed-off-by: Liang Yang <liang.yang@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05 16:56:09 +01:00
Christophe Kerello
2cd457f328 mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver
The driver adds the support for the STMicroelectronics FMC2 NAND
Controller found on STM32MP SOCs.

This patch is based on FMC2 command sequencer.
The purpose of the command sequencer is to facilitate the programming
and the reading of NAND flash pages with the ECC and to free the CPU
of sequencing tasks.
It requires one DMA channel for write and two DMA channels for read
operations.

Only NAND_ECC_HW mode is actually supported.
The driver supports a maximum 8k page size.
The following ECC strength and step size are currently supported:
 - nand-ecc-strength = <8>, nand-ecc-step-size = <512> (BCH8)
 - nand-ecc-strength = <4>, nand-ecc-step-size = <512> (BCH4)
 - nand-ecc-strength = <1>, nand-ecc-step-size = <512> (Extended ECC
   based on Hamming)

This patch has been tested on Micron MT29F8G08ABACAH4 and
MT29F8G16ABACAH4

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05 15:39:37 +01:00
Boris Brezillon
fbb080a1fc mtd: rawnand: ams-delta: Allow this driver to be compiled when COMPILE_TEST=y
Drop the asm and mach headers inclusion and allow this driver to be
compiled when COMPILE_TEST=y in order to increase compile-test
coverage.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-12-07 10:38:24 +01:00
Boris Brezillon
64ddd5d857 mtd: rawnand: Remove docg4
The diskonchip G4 driver does not fit very well in the raw/parallel
NAND framework simply because such chips have an internal controller
translating DoC-specific commands into NAND ones.

Keeping such a driver in the raw NAND framework is a real burden for
NAND maintainers.

Not to mention that some parts of this driver are a bit worrisome:

- writes are done by subpages, even though we're interfacing with an MLC
  chip which are known to not support subpage writes very well (it might
  be that the FTL handles the complexity for us though)

- some part of the code are simply ignoring return codes of function that
  can fail in a few occasions

- there's a hack to support OOB writes when no data is provided. This
  operation is not supported by the chip and should have been rejected,
  and nandwrite and other userspace tools should have been patched to
  deal with such devices

- the driver is apparently broken when ignore_badblocks module param
  is not set to 1 and nobody noticed that (don't know since when this
  is the case, but it's not a recent change)
  http://lists.infradead.org/pipermail/linux-mtd/2018-July/082472.html

Add to that the fact that we already have a docg3 driver in
drivers/mtd/devices/docg3.c and, looking at the code (and regs), it
seems docg3 and docg4 have a lot in common (even the author of this
driver seemed to have realized that interfacing with the raw NAND
framework might have been a bad idea
http://lists.infradead.org/pipermail/linux-mtd/2012-January/039517.html).

For all these reasons, I'm proposing to remove this driver. If anyone
ever wants to add support for this chip back, I'd suggest extending
the docg3 driver instead of adding a completely new driver.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Mike Dunn <mikedunn@newsguy.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Sergey Larin <cerg2010cerg2010@mail.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-10-03 11:12:25 +02:00
Boris Brezillon
9805d4bcf8 mtd: rawnand: atmel: Select GENERIC_ALLOCATOR
The driver uses genalloc functions. Select GENERIC_ALLOCATOR to prevent
build errors when selected through COMPILE_TEST.

Fixes: 88a40e7dca00 ("mtd: rawnand: atmel: Allow selection of this driver when COMPILE_TEST=y")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
2018-08-11 18:07:44 +02:00
Arnd Bergmann
c2204734bb mtd: rawnand: MTD_NAND_BCM47XXNFLASH needs CONFIG_BCMA
We already have a dependency on BCMA_NFLASH, which in turn depends on
BCMA, but since BCMA is a tristate option and BCMA_NFLASH is bool,
we can run into an invalid configuration with MTD_NAND_BCM47XXNFLASH=y
and BCMA=m:

drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.o: In function `bcm47xxnflash_ops_bcm4706_init':
ops_bcm4706.c:(.text+0x790): undefined reference to `bcma_chipco_pll_read'

Adding the dependency here forces MTD_NAND_BCM47XXNFLASH to only be
configured =m here so it can link against the BCMA driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19 23:14:11 +02:00
Boris Brezillon
b8f0fadab2 mtd: rawnand: jz4780: Drop the dependency on MACH_JZ4780
This MACH_JZ4780 dependency is taken care of by JZ4780_NEMC, no need
to repeat it here.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:24 +02:00
Boris Brezillon
6968e07e81 mtd: rawnand: jz4740: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having MACH_JZ4740 enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:24 +02:00
Boris Brezillon
eaea2e7300 mtd: rawnand: txx9ndfmc: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having SOC_TX4938 or SOC_TX4939
enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:23 +02:00
Boris Brezillon
a6be5051cd mtd: rawnand: fsl_ifc: Allow selection of this driver when COMPILE_TEST=y
It just makes maintainers' life easier by allowing them to compile-test
this driver without having FSL_SOC, ARCH_LAYERSCAPE or SOC_LS1021A
enabled.

We also need to add a dependency on HAS_IOMEM to make sure the
driver compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:22 +02:00
Boris Brezillon
17c09ed706 mtd: rawnand: fsmc: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having PLAT_SPEAR, ARCH_NOMADIK,
ARCH_U8500 or MACH_U300 enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:21 +02:00
Boris Brezillon
e37db6df41 mtd: rawnand: sunxi: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARCH_SUNXI enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:20 +02:00
Boris Brezillon
b9221470b0 mtd: rawnand: davinci: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARCH_DAVINCI or ARCH_KEYSTONE
enabled.

We also need to add a dependency on HAS_IOMEM to make sure the
driver compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:18 +02:00
Miquel Raynal
d3691813b0 mtd: rawnand: fix indentation in Kconfig
Rules about Kconfig are simple but in the raw NAND directory indentation
is somehow archaic. Fix the indentation in the whole file.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:18 +02:00
Boris Brezillon
88a40e7dca mtd: rawnand: atmel: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARCH_AT91 enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 10:10:16 +02:00
Boris Brezillon
d4de09e5bb mtd: rawnand: nuc900: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARCH_W90X900 enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 09:34:19 +02:00
Boris Brezillon
b2d55fe2ad mtd: rawnand: qcom: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARCH_QCOM enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 09:34:19 +02:00
Boris Brezillon
434bc2e148 mtd: rawnand: mxc: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARCH_MXC enabled.

We also need to add a dependency on HAS_IOMEM to make sure the
driver compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 09:34:18 +02:00
Boris Brezillon
0beb487241 mtd: rawnand: brcmnand: Allow selection of this driver when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test this driver without having ARM, ARM64 or MIPS enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 09:34:17 +02:00
Boris Brezillon
ee70e5e796 mtd: rawnand: lpc32xx: Allow selection of these drivers when COMPILE_TEST=y
It just makes NAND maintainers' life easier by allowing them to
compile-test these drivers without having ARCH_LPC32XX enabled.

We also need to add a dependency on HAS_IOMEM to make sure the driver
compiles correctly.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18 09:34:17 +02:00