linux-toradex.git/drivers/mtd/nand, branch v5.14

mtd: rawnand: Fix probe failure due to of_get_nand_secure_regions()

2021-08-06T19:44:16+00:00

Due to 14f97f0b8e2b, the rawnand platforms without "secure-regions"
property defined in DT fails to probe. The issue is,
of_get_nand_secure_regions() errors out if
of_property_count_elems_of_size() returns a negative error code.

If the "secure-regions" property is not present in DT, then also we'll
get -EINVAL from of_property_count_elems_of_size() but it should not
be treated as an error for platforms not declaring "secure-regions"
in DT.

So fix this behaviour by checking for the existence of that property in
DT and return 0 if it is not present.

Fixes: 14f97f0b8e2b ("mtd: rawnand: Add a check in of_get_nand_secure_regions()")
Reported-by: Martin Kaiser 
Signed-off-by: Manivannan Sadhasivam 
Reviewed-by: Martin Kaiser 
Tested-by: Martin Kaiser 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20210727062813.32619-1-manivannan.sadhasivam@linaro.org

mtd: rawnand: Add a check in of_get_nand_secure_regions()

2021-07-15T22:49:15+00:00

Check for whether of_property_count_elems_of_size() returns a negative
error code.

Fixes: 13b89768275d ("mtd: rawnand: Add support for secure regions in NAND memory")
Signed-off-by: Dan Carpenter 
Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/YMtQFXE0F1w7mUh+@mwanda

Merge tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

2021-07-05T18:21:51+00:00

Pull MTD updates from Richard Weinberger:
 "MTD core changes:
   - Convert list_for_each to entry variant
   - Use MTD_DEVICE_ATTR_RO/RW() helper macros
   - Remove unnecessary OOM messages
   - Potential NULL dereference in mtd_otp_size()
   - Fix freeing of otp_info buffer
   - Create partname and partid debug files for child MTDs
   - tests:
      - Remove redundant assignment to err
      - Fix error return code in mtd_oobtest_init()
   - Add OTP NVMEM provider support
   - Allow specifying of_node
   - Convert sysfs sprintf/snprintf family to sysfs_emit

  Bindings changes:
   - Convert ti,am654-hbmc.txt to YAML schema
   - spi-nor: add otp property
   - Add OTP bindings
   - add YAML schema for the generic MTD bindings
   - Add brcm,trx-magic

  MTD device drivers changes:
   - Add support for microchip 48l640 EERAM
   - Remove superfluous "break"
   - sm_ftl:
      - Fix alignment of block comment
   - nftl:
      - Return -ENOMEM when kmalloc failed
   - nftlcore:
      - Remove set but rewrite variables
   - phram:
      - Fix error return code in phram_setup()
   - plat-ram:
      - Remove redundant dev_err call in platram_probe()

  MTD parsers changes:
   - Qcom:
      - Fix leaking of partition name
   - Redboot:
      - Fix style issues
      - Seek fis-index-block in the right node
   - trx:
      - Allow to use TRX parser on Mediatek SoCs
      - Allow to specify brcm, trx-magic in DT

  Raw NAND core:
   - Allow SDR timings to be nacked
   - Bring support for NV-DDR timings which involved a number of small
     preparation changes to bring new helpers, properly introduce NV-DDR
     structures, fill them, differenciate them and pick the best timing
     set.
   - Add the necessary infrastructure to parse the new gpio-cs property
     which aims at enlarging the number of available CS when a hardware
     controller is too constrained.
   - Update dead URL
   - Silence static checker warning in nand_setup_interface()
   - BBT:
      - Fix corner case in bad block table handling
   - onfi:
      - Use more recent ONFI specification wording
      - Use the BIT() macro when possible

  Raw NAND controller drivers:
   - Atmel:
      - Ensure the data interface is supported.
   - Arasan:
      - Finer grain NV-DDR configuration
      - Rename the data interface register
      - Use the right DMA mask
      - Leverage additional GPIO CS
      - Ensure proper configuration for the asserted target
      - Add support for the NV-DDR interface
      - Fix a macro parameter
   - brcmnand:
      - Convert bindings to json-schema
   - OMAP:
      - Various fixes and style improvements
      - Add larger page NAND chips support
   - PL35X:
      - New driver
   - QCOM:
      - Avoid writing to obsolete register
      - Delete an unneeded bool conversion
      - Allow override of partition parser
   - Marvell:
      - Minor documentation correction
      - Add missing clk_disable_unprepare() on error in
        marvell_nfc_resume()
   - R852:
      - Use DEVICE_ATTR_RO() helper macro
   - MTK:
      - Remove redundant dev_err call in mtk_ecc_probe()
   - HISI504:
      - Remove redundant dev_err call in probe

  SPI-NAND core:
   - Light reorganisation for the introduction of a core resume handler
   - Fix double counting of ECC stats

  SPI-NAND manufacturer drivers:
   - Macronix:
      - Add support for serial NAND flash

  SPI NOR core changes:
   - Ability to dump SFDP tables via sysfs
   - Support for erasing OTP regions on Winbond and similar flashes
   - Few API doc updates and fixes
   - Locking support for MX25L12805D

  SPI NOR controller drivers changes:
   - Use SPI_MODE_X_MASK in nxp-spifi
   - Intel Alder Lake-M SPI serial flash support"

* tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (125 commits)
  mtd: spi-nor: remove redundant continue statement
  mtd: rawnand: omap: Add larger page NAND chips support
  mtd: rawnand: omap: Various style fixes
  mtd: rawnand: omap: Check return values
  mtd: rawnand: omap: Rename a macro
  mtd: rawnand: omap: Aggregate the HW configuration of the ELM
  mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller
  dt-bindings: mtd: pl353-nand: Describe this hardware controller
  MAINTAINERS: Add PL353 NAND controller entry
  mtd: rawnand: qcom: avoid writing to obsolete register
  mtd: rawnand: marvell: Minor documentation correction
  mtd: rawnand: r852: use DEVICE_ATTR_RO() helper macro
  mtd: spinand: add SPI-NAND MTD resume handler
  mtd: spinand: Add spinand_init_flash() helper
  mtd: spinand: add spinand_read_cfg() helper
  mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
  mtd: rawnand: arasan: Finer grain NV-DDR configuration
  mtd: rawnand: arasan: Rename the data interface register
  mtd: rawnand: onfi: Fix endianness when reading NV-DDR values
  mtd: rawnand: arasan: Use the right DMA mask
  ...

Merge tag 'nand/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next

2021-06-29T21:01:39+00:00

Raw NAND core:
* Allow SDR timings to be nacked
* Bring support for NV-DDR timings which involved a number of small
  preparation changes to bring new helpers, properly introduce NV-DDR
  structures, fill them, differenciate them and pick the best timing set.
* Add the necessary infrastructure to parse the new gpio-cs property
  which aims at enlarging the number of available CS when a hardware
  controller is too constrained.
* Update dead URL
* Silence static checker warning in nand_setup_interface()
* BBT:
  - Fix corner case in bad block table handling
* onfi:
  - Use more recent ONFI specification wording
  - Use the BIT() macro when possible

Raw NAND controller drivers:
* Atmel:
  - Ensure the data interface is supported.
* Arasan:
  - Finer grain NV-DDR configuration
  - Rename the data interface register
  - Use the right DMA mask
  - Leverage additional GPIO CS
  - Ensure proper configuration for the asserted target
  - Add support for the NV-DDR interface
  - Fix a macro parameter
* brcmnand:
  - Convert bindings to json-schema
* OMAP:
  - Various fixes and style improvements
  - Add larger page NAND chips support
* PL35X:
  - New driver
* QCOM:
  - Avoid writing to obsolete register
  - Delete an unneeded bool conversion
  - Allow override of partition parser
* Marvell:
  - Minor documentation correction
  - Add missing clk_disable_unprepare() on error in marvell_nfc_resume()
* R852:
  - Use DEVICE_ATTR_RO() helper macro
* MTK:
  - Remove redundant dev_err call in mtk_ecc_probe()
* HISI504:
  - Remove redundant dev_err call in probe

SPI-NAND core:
* Light reorganisation for the introduction of a core resume handler
* Fix double counting of ECC stats

SPI-NAND manufacturer drivers:
* Macronix:
  - Add support for serial NAND flash

Merge remote-tracking branch 'spi/for-5.14' into spi-next

2021-06-25T13:08:26+00:00

mtd: rawnand: omap: Add larger page NAND chips support

2021-06-18T07:45:21+00:00

There is no reason to be limited to 4kiB page NAND chips just because
this is the maximum length the ELM is able to handle in one go. Just
call the ELM several times and it will process as many data as needed.

Here we introduce the concept of ECC page (which is at most 4kiB). The
ELM will be sought as many times as there are ECC pages.

Signed-off-by: Miquel Raynal 
Tested-by: Ryan Barnett 
Link: https://lore.kernel.org/linux-mtd/20210610134906.3503303-6-miquel.raynal@bootlin.com

mtd: rawnand: omap: Various style fixes

2021-06-18T07:45:21+00:00

Fix the comments style, declare the variables in a reverse Christmas
tree order, add an upper case character at the beginning of a sentence.

Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20210610134906.3503303-5-miquel.raynal@bootlin.com

mtd: rawnand: omap: Check return values

2021-06-18T07:45:21+00:00

Check the return value of many helpers which might return error codes.

Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20210610134906.3503303-4-miquel.raynal@bootlin.com

mtd: rawnand: omap: Rename a macro

2021-06-18T07:45:21+00:00

The macro BADBLOCK_MARKER_LENGTH is pretty long and could be reduced to
BBM_LEN which is more handy to use in the code.

This is a purely cosmetic change and is only done to avoid further
change to contain 100+ char lines just because of this definition.

Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20210610134906.3503303-3-miquel.raynal@bootlin.com

mtd: rawnand: omap: Aggregate the HW configuration of the ELM

2021-06-18T07:45:21+00:00

Instead of calling elm_config() for each possible BCH configuration,
just save the BCH configuration that must be applied and use it in a
single call at the bottom.

Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20210610134906.3503303-2-miquel.raynal@bootlin.com