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9982 Commits

Author SHA1 Message Date
Linus Torvalds
edd2b9832d Merge tag 'mtd/for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
 "Core MTD changes:

   - We must ignore error -ENOENT from parsers on subpartitions which is
     a legitimate return value

   - PM support is added to the intel-dg driver

  Raw NAND changes:

   - The major change in this is the support for the Allwinner H616 NAND
     controller, which lead to numerous changes and cleanups in the
     driver.

   - Another notable change in this driver is the use of field_get() and
     field_prep(), but since the global support for this helpers is
     going to be merged in the same release as we start using these
     helpers, we undefine them in the first place to avoid warnings.

   - Marvell drivers layout handling changes have also landed, they fix
     previous definitions and abuses that have been made previously,
     which implied to relax the ECC parameters validation in the core a
     bit.

   - The Cadence NAND controller driver gets NV-DDR interface support.

  SPI NAND changes:

   - Support for FudanMicro FM25S01BI3 and ESMT F50L1G41LC is added.

  SPI NOR changes:

   - Fix SMPT parsing for S25FS-S flash family. They report variable
     dummy cycles for reads. This results in the default of 0 being
     used. This works for other Infineon chips, but not for the S25FS-S
     family. They need 8 dummy cycles. Add fixup hooks to specify that.
     Also add fixup hooks to fix incorrect map ID data in SFDP.

   - Add support for a bunch of Winbond flashes. Their block protection
     information is not discoverable, so they need to have an entry in
     the flash tables to describe that.

   - Some cleanups for Micron flash support.

   - Add support for Micron mt35xu01gbba.

   - Some SPI controllers like the Intel one on the PCI bus do not
     support the read CR opcode (0x35). Do not use the opcode if the
     controller does not support it.

  Aside from these main changes, there is the usual load of API updates,
  kdoc fixes, potential memory leaks fixes, etc"

* tag 'mtd/for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (51 commits)
  mtd: sm_ftl: Fix typo in comment in sm_read_lba
  mtd: sm_ftl: Replace deprecated strncpy with sysfs_emit in sm_attr_show
  mtd: lpddr_cmds: fix signed shifts in lpddr_cmds
  mtd: docg3: fix kernel-doc warnings
  mtd: spinand: add support for FudanMicro FM25S01BI3
  mtd: rawnand: renesas: Handle devm_pm_runtime_enable() errors
  mtd: nand: realtek-ecc: Fix Kconfig dependencies
  mtd: rawnand: sunxi: #undef field_{get,prep}() before local definition
  mailmap: update Pratyush Yadav's email address
  mtd: spi-nor: core: Check read CR support
  mtd: spi-nor: micron-st: add TODO for fixing mt35xu02gcba
  mtd: spi-nor: micron-st: add mt35xu01gbba support
  mtd: spi-nor: micron-st: use SFDP of mt35xu512aba
  mtd: spi-nor: micron-st: move set_octal_dtr to late_init()
  mtd: spi-nor: micron-st: rename the die_late_init functions
  mtd: spinand: esmt: add support for F50L1G41LC
  mtd: rawnand: lpc32xx_slc: Convert to use devm_gpiod_get_optional()
  mtd: mtdpart: ignore error -ENOENT from parsers on subpartitions
  mtd: maps: pcmciamtd: fix potential memory leak in pcmciamtd_detach()
  mtd: spi-nor: spansion: SMPT fixups for S25FS-S
  ...
2025-12-04 11:07:46 -08:00
Miquel Raynal
801b0840b0 Merge tag 'nand/for-6.19' into mtd/next
Raw NAND changes:

* The major change in this MR will be the support for the Allwinner H616
  NAND controller, which lead to numerous changes and cleanups in the
  driver.

* Another notable change on this driver is the use of
  field_get()/field_prep(), but since the global support for this
  helpers is going to be merged in the same release as we start using
  these helpers, it implies undefining them in the first place to avoid
  warnings. Depending on the merging order (Yuri's bitmap branch or
  mtd/next), a temporary warning may arise.

* Marvell drivers layout handling changes have also landed, they fix
  previous definitions and abuses that have been made previously, which
  implied to relax the ECC parameters validation in the core a bit.

* The Cadence NAND controller driver gets NV-DDR interface support.

SPI NAND changes:

* Support for FudanMicro FM25S01BI3 and ESMT F50L1G41LC is added.

Aside from these main changes, there is the usual load of fixes and API
updates.
2025-11-29 14:10:16 +01:00
Miquel Raynal
de95c58798 Merge tag 'spi-nor/for-6.19' of https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next
SPI NOR changes for 6.19

Notable changes:

- Fix SMPT parsing for S25FS-S flash family. They report variable dummy
  cycles for reads. This results in the default of 0 being used. This
  works for other Infineon chips, but not for the S25FS-S family. They
  need 8 dummy cycles. Add fixup hooks to specify that. Also add fixup
  hooks to fix incorrect map ID data in SFDP.

- Add support for a bunch of Winbond flashes. Their block protection
  information is not discoverable, so they need to have an entry in the
  flash tables to describe that.

- Some cleanups for Micron flash support.

- Add support for Micron mt35xu01gbba.

- Some SPI controllers like the Intel one on the PCI bus do not support
  the read CR opcode (0x35). Do not use the opcode if the controller
  does not support it.

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# gpg: Signature made jeu. 27 nov. 2025 23:26:01 CET
# gpg:                using EDDSA key 1395458DCD7184A376C59B2211E1DAEA3F4DBC09
# gpg: Good signature from "Pratyush Yadav <p.yadav@ti.com>" [expired]
# gpg:                 aka "Pratyush Yadav <me@yadavpratyush.com>" [expired]
# gpg: p.yadav@ti.com: Verified 5 signatures in the past 3 years.  Encrypted 0 messages.
# gpg: me@yadavpratyush.com: Verified 5 signatures in the past 3 years.  Encrypted
#      0 messages.
# gpg: Note: This key has expired!
# Primary key fingerprint: 805C 3923 2FBE 108C 49E1  663C F650 3556 C11B 1CCD
#      Subkey fingerprint: 1395 458D CD71 84A3 76C5  9B22 11E1 DAEA 3F4D BC09
2025-11-29 14:06:31 +01:00
Thorsten Blum
2158890a1a mtd: sm_ftl: Fix typo in comment in sm_read_lba
s/is/if/

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-29 13:50:35 +01:00
Thorsten Blum
f3dc4d9898 mtd: sm_ftl: Replace deprecated strncpy with sysfs_emit in sm_attr_show
strncpy() is deprecated [1] for NUL-terminated destination buffers
because it does not guarantee NUL termination. It also unnecessarily
NUL-pads the destination buffer if the source is shorter. Replace it
with sysfs_emit() using the "%.*s" format specifier and supply the
length 'sm_attr->len' to improve sm_attr_show().

Return the number of characters actually written to 'buf' instead of
'sm_attr->len'.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-29 13:50:25 +01:00
Ivan Stepchenko
c909fec69f mtd: lpddr_cmds: fix signed shifts in lpddr_cmds
There are several places where a value of type 'int' is shifted by
lpddr->chipshift. lpddr->chipshift is derived from QINFO geometry and
might reach 31 when QINFO reports a 2 GiB size - the maximum supported by
LPDDR(1) compliant chips. This may cause unexpected sign-extensions when
casting the integer value to the type of 'unsigned long'.

Use '1UL << lpddr->chipshift' and cast 'j' to unsigned long before
shifting so the computation is performed at the destination width.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: c68264711c ("[MTD] LPDDR Command set driver")
Signed-off-by: Ivan Stepchenko <sid@itb.spb.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-29 13:50:19 +01:00
Randy Dunlap
1cce5a5eca mtd: docg3: fix kernel-doc warnings
Fix kernel-doc warnings in docg3.h to avoid build warnings:

Warning: ../drivers/mtd/devices/docg3.h:276 bad line:
Warning: drivers/mtd/devices/docg3.h:299 struct member 'max_block' not
 described in 'docg3'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-29 13:49:58 +01:00
Mikhail Zhilkin
f6dffe2a9e mtd: spinand: add support for FudanMicro FM25S01BI3
Add support for FudanMicro FM25S01BI3 SPI NAND.

Link: https://www.fmsh.com/nvm/FM25S01BI3_ds_eng.pdf

Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-29 13:46:40 +01:00
Haotian Zhang
a3623e1ae1 mtd: rawnand: renesas: Handle devm_pm_runtime_enable() errors
devm_pm_runtime_enable() can fail due to memory allocation failures.
The current code ignores its return value and proceeds with
pm_runtime_resume_and_get(), which may operate on incorrectly
initialized runtime PM state.

Check the return value of devm_pm_runtime_enable() and return the
error code if it fails.

Fixes: 6a2277a0eb ("mtd: rawnand: renesas: Use runtime PM instead of the raw clock API")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-28 09:11:59 +01:00
Miquel Raynal
41bdec133d mtd: nand: realtek-ecc: Fix Kconfig dependencies
The driver uses DMA but does not mark it as a prerequisite in
Kconfig. As it is also defined with COMPILE_TEST, autobuilders complain
about certain symbols not being available when linking on architectures
without DMA support (?) like sh.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511071114.8WeW2GZK-lkp@intel.com
Cc: Markus Stockhausen <markus.stockhausen@gmx.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-27 18:25:05 +01:00
Geert Uytterhoeven
c67c7ee7d5 mtd: rawnand: sunxi: #undef field_{get,prep}() before local definition
Prepare for the advent of globally available common field_get() and
field_prep() macros by undefining the symbols before defining local
variants.  This prevents redefinition warnings from the C preprocessor
when introducing the common macros later.

Suggested-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2025-11-27 18:24:01 +01:00
Jakub Czapiga
5008c3ec3f mtd: spi-nor: core: Check read CR support
Some SPI controllers like Intel's one on the PCI bus do not support
opcode 35h. This opcode is used to read the Configuration Register on
SPI-NOR chips that have 16-bit Status Register configured regardless
of the controller support for it. Adding a check call in the setup step
allows disabling use of the 35h opcode and falling back to the manual
Status Registers management.

Before:
openat(AT_FDCWD, "/dev/mtd0", O_RDWR)   = 4
ioctl(4, MIXER_WRITE(6) or MEMUNLOCK, {start=0, length=0x2000000}) = -1
EOPNOTSUPP

After:
openat(AT_FDCWD, "/dev/mtd0", O_RDWR)   = 4
ioctl(4, MIXER_WRITE(6) or MEMUNLOCK, {start=0, length=0x2000000}) = 0
ioctl(4, MIXER_WRITE(5) or MEMLOCK, {start=0x1800000, length=0x800000}) = 0

Suggested-by: Adeel Arshad <adeel.arshad@intel.com>
Signed-off-by: Jakub Czapiga <czapiga@google.com>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-18 13:33:18 +01:00
Haibo Chen
7f77c561e2 mtd: spi-nor: micron-st: add TODO for fixing mt35xu02gcba
The MT35XU02GCBA flash device does not support chip erase, according to
its datasheet. It supports die erase, which means the current driver
implementation will likely need to be converted to use die erase.

Furthermore, similar to the MT35XU01GBBA, the
SPI_NOR_IO_MODE_EN_VOLATILE flag probably needs to be enabled.

Currently no active contributor has access to this hardware so there is
no way of testing the fixes. Add a TODO item on the flash entry so
someone with the flash can test that the support is indeed broken and
send the fixes.

Link: https://datasheet.octopart.com/MT35XU02GCBA1G12-0AAT-Micron-datasheet-138896808.pdf
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
[pratyush@kernel.org: refactor the comment and commit message to make
the purpose of the comment clearer]
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-18 13:04:32 +01:00
Haibo Chen
a5dff51e19 mtd: spi-nor: micron-st: add mt35xu01gbba support
mt35xu01gbba is similar with mt35xu512aba, but with two dies.
mt35xu01gbba has SFDP and support 8D-8D-8D mode, but SFDP
lack SNOR_F_IO_MODE_EN_VOLATILE, so add this fixup flags here.
Besides, mt35xu01gbba do not support chip erase, but support
die erase, so add that in late_init().

Link: https://datasheet.octopart.com/MT35XU02GCBA1G12-0AAT-Micron-datasheet-138896808.pdf
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-18 13:01:37 +01:00
Haibo Chen
44dd635cd6 mtd: spi-nor: micron-st: use SFDP of mt35xu512aba
mt35xu512aba has SFDP, already contain the necessary
information, so remove size and some flags here.

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-18 13:01:37 +01:00
Haibo Chen
9437a14ae2 mtd: spi-nor: micron-st: move set_octal_dtr to late_init()
Move params->set_octal_dtr from flash_info->fixups->default_init()
to spi_nor_manufacturer-> fixups-> late_init(), this can cover
all Micorn and ST chips without repeat in each chip's flash_info.

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-18 13:01:37 +01:00
Haibo Chen
74883accfa mtd: spi-nor: micron-st: rename the die_late_init functions
st_nor_two/four_die_late_init() also suit for micron chips,
so rename to micron_st_nor_two/four_die_late_init(), and move
these functions up, then micron can use these function without
declaration.

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-18 13:01:37 +01:00
Daniel Golle
b98994cb9b mtd: spinand: esmt: add support for F50L1G41LC
This adds support for ESMT F50L1G41LC, which appears to be an updated
version of the already supported F50L1G41LB.
Add esmt_8c SPI_NAND manufacturer to account for the newly used vendor
ID with support for the ESMT F50L1G41LC chip.

Link: https://github.com/openwrt/openwrt/pull/15214#issuecomment-3514824435
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-17 11:53:08 +01:00
Haotian Zhang
1f3dcfe5fc mtd: rawnand: lpc32xx_slc: Convert to use devm_gpiod_get_optional()
The initial fix for a GPIO descriptor leak added manual gpiod_put()
calls in the error path and remove function.

This follow-up patch improves upon the fix by switching to the
resource-managed devm_gpiod_get_optional() API.

Suggested-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-17 11:52:17 +01:00
Christian Marangi
64ef5f454e mtd: mtdpart: ignore error -ENOENT from parsers on subpartitions
Commit 5c2f7727d4 ("mtd: mtdpart: check for subpartitions parsing
result") introduced some kind of regression with parser on subpartitions
where if a parser emits an error then the entire parsing process from the
upper parser fails and partitions are deleted.

Not checking for error in subpartitions was originally intended as
special parser can emit error also in the case of the partition not
correctly init (for example a wiped partition) or special case where the
partition should be skipped due to some ENV variables externally
provided (from bootloader for example)

One example case is the TRX partition where, in the context of a wiped
partition, returns a -ENOENT as the trx_magic is not found in the
expected TRX header (as the partition is wiped)

To better handle this and still keep some kind of error tracking (for
example to catch -ENOMEM errors or -EINVAL errors), permit parser on
subpartition to emit -ENOENT error, print a debug log and skip them
accordingly.

This results in giving better tracking of the status of the parser
(instead of returning just 0, dropping any kind of signal that there is
something wrong with the parser) and to some degree restore the original
logic of the subpartitions parse.

(worth to notice that some special partition might have all the special
header present for the parser and declare 0 partition in it, this is why
it would be wrong to simply return 0 in the case of a special partition
that is NOT init for the scanning parser)

Cc: stable@vger.kernel.org
Fixes: 5c2f7727d4 ("mtd: mtdpart: check for subpartitions parsing result")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-17 11:49:47 +01:00
Abdun Nihaal
a697c671cc mtd: maps: pcmciamtd: fix potential memory leak in pcmciamtd_detach()
The memory allocated for struct pcmciamtd_dev in pcmciamtd_probe() is
not freed in the corresponding remove function pcmciamtd_detach().
Fix that by freeing it in the remove function.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-17 11:49:14 +01:00
Takahiro Kuwano
e8f288a115 mtd: spi-nor: spansion: SMPT fixups for S25FS-S
S25FS-S family supports SMPT that helps to detect sector layout settings
in configuration registers, but some of parameters in the table are
wrong or undetermined so the fixups below are required.

Read Any Register op is used to read configuration registers that
related to sector map. The op requires 8 cycles latency by default.
Implement smpt_read_dummy() to set correct dummy cycles.

Map ID is structured by combination of CR3NV[3], CR1NV[2], and CR3NV[1].
However, in S25FS512S, CR3NV[1] is RFU and always 0, while map IDs
defined in the table assume it is always 1. Implement smpt_map_id() to
fix map ID for S25FS512S. Other densities in S25FS-S family (256Mb and
128Mb) don't need this fix as CR3NV[1] in those chips is configurable
and map IDs are correctly defined in SMPT.

Co-developed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Tested-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # S25FS512S
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-10 11:12:06 +01:00
Takahiro Kuwano
f74de39055 mtd: spi-nor: sfdp: introduce smpt_map_id fixup hook
Certain chips have inconsistent Sector Map Parameter Table (SMPT) data,
which leads to the wrong map ID being identified, causing failures to
detect the correct sector map.

To fix this, introduce smpt_map_id() into the struct spi_nor_fixups.
This function will be called after the initial SMPT-based detection,
allowing chip-specific logic to correct the map ID.

Infineon S25FS512S needs this fixup as it has inconsistency between map
ID definition and configuration register value actually obtained.

Co-developed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Tested-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # S25FS512S
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-10 11:11:53 +01:00
Takahiro Kuwano
653f6def56 mtd: spi-nor: sfdp: introduce smpt_read_dummy fixup hook
SMPT contains config detection info that describes opcode, address, and
dummy cycles to read sector map config. The dummy cycles parameter can
be SMPT_CMD_READ_DUMMY_IS_VARIABLE and in that case nor->read_dummy
(initialized as 0) is used. In Infineon flash chips, Read Any Register
command with variable dummy cycle is defined in SMPT. S25Hx/S28Hx flash
has 0 dummy cycle by default to read volatile regiters and
nor->read_dummy can work. S25FS-S flash has 8 dummy cycles so we need a
hook that can fix dummy cycles with actually used value.

Inroduce smpt_read_dummy() in struct spi_nor_fixups. It is called when
the dummy cycle field in SMPT config detection is 'varialble'.

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Tested-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # S25FS512S
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-10 11:11:02 +01:00
Miquel Raynal
604cf6a401 mtd: spi-nor: winbond: Add support for W25H02NWxxAM chips
These chips must be described as none of the block protection
information are discoverable. This chip supports 4 bits plus the
top/bottom addressing capability to identify the protected blocks.

Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-06 15:56:07 +01:00
Miquel Raynal
1df1fdbc7e mtd: spi-nor: winbond: Add support for W25H01NWxxAM chips
These chips must be described as none of the block protection
information are discoverable. This chip supports 4 bits plus the
top/bottom addressing capability to identify the protected blocks.

Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-06 15:56:07 +01:00
Miquel Raynal
f21d2c7d37 mtd: spi-nor: winbond: Add support for W25H512NWxxAM chips
These chips must be described as none of the block protection
information are discoverable. This chip supports 4 bits plus the
top/bottom addressing capability to identify the protected blocks.

Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-06 15:56:07 +01:00
Miquel Raynal
71c239348d mtd: spi-nor: winbond: Add support for W25Q02NWxxIM chips
These chips must be described as none of the block protection
information are discoverable. This chip supports 4 bits plus the
top/bottom addressing capability to identify the protected blocks.

Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-06 15:56:07 +01:00
Miquel Raynal
a607e676c8 mtd: spi-nor: winbond: Add support for W25Q01NWxxIM chips
These chips must be described as none of the block protection
information are discoverable. This chip supports 4 bits plus the
top/bottom addressing capability to identify the protected blocks.

Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-06 15:56:06 +01:00
Miquel Raynal
aee8c4d9d4 mtd: spi-nor: winbond: Add support for W25Q01NWxxIQ chips
This chip must be described as none of the block protection information
are discoverable. This chip supports 4 bits plus the top/bottom
addressing capability to identify the protected blocks.

Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
2025-11-06 15:56:06 +01:00
Dan Carpenter
97315e7c90 mtd: onenand: Pass correct pointer to IRQ handler
This was supposed to pass "onenand" instead of "&onenand" with the
ampersand.  Passing a random stack address which will be gone when the
function ends makes no sense.  However the good thing is that the pointer
is never used, so this doesn't cause a problem at run time.

Fixes: e23abf4b77 ("mtd: OneNAND: S5PC110: Implement DMA interrupt method")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-03 11:37:57 +01:00
Mikhail Kshevetskiy
a1d3bc606b mtd: spinand: fmsh: remove QE bit for FM25S01A flash
According to datasheet (http://eng.fmsh.com/nvm/FM25S01A_ds_eng.pdf)
there is no QE (Quad Enable) bit for FM25S01A flash, so remove it.

Fixes: 5f284dc15c ("mtd: spinand: add support for FudanMicro FM25S01A")
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Tested-by: Tianling Shen <cnsztl@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-03 11:33:04 +01:00
Alexander Usyskin
3e9c49d4c3 mtd: intel-dg: wake card on operations
The Intel DG cards do not have separate power control for
persistent memory.
The memory is available when the whole card is awake.

Enable runtime PM in mtd driver to notify parent graphics driver
that whole card should be kept awake while nvm operations are
performed through this driver.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:24:49 +01:00
Richard Genoud
88fd4e4dea mtd: rawnand: sunxi: Add support for H616 nand controller
The H616 nand controller has the same base as A10/A23, with some
differences:
- mdma is based on chained buffers
- its ECC supports up to 80bit per 1024bytes
- some registers layouts are a bit different, mainly due do the stronger
  ECC.
- it uses USER_DATA_LEN registers along USER_DATA registers.
- it needs a specific clock for ECC and MBUS.

Introduce the basic support, with ECC and scrambling, but without
DMA/MDMA.

Tested on Whatsminer H616 board (with and without scrambling, ECC)

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:13 +01:00
Richard Genoud
5ddfbc68ec mtd: rawnand: sunxi: introduce sram_size in sunxi_nfc_caps
The H6/H616 the SRAM is bigger than the A10/A23 one, so move its size
into sunxi_nfc_caps.

No functional change

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:13 +01:00
Richard Genoud
97d13bcea2 mtd: rawnand: sunxi: introduce ecc_err_mask in sunxi_nfc_caps
The H6/H616 error mask register is bigger than the A10/A23 one, so move
its mask into sunxi_nfc_caps.

No functional change

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:13 +01:00
Richard Genoud
6208274d0a mtd: rawnand: sunxi: introduce reg_spare_area in sunxi_nfc_caps
The H6/H616 spare area register is not at the same offset as the
A10/A23 one, so move its offset into sunxi_nfc_caps.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:13 +01:00
Richard Genoud
ee61bba4ee mtd: rawnand: sunxi: introduce reg_pat_id in sunxi_nfc_caps
The H6/H616 pattern ID register is not at the same offset as the
A10/A23 one, so move its offset into sunxi_nfc_caps.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:13 +01:00
Richard Genoud
1340fa8721 mtd: rawnand: sunxi: introduce random en/dir in sunxi_nfc_caps
The H6/H616 RANDOM EN/DIRECTION masks are different from A10/A23.
So move the masks into sunxi_nfc_caps.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:13 +01:00
Richard Genoud
d21b433815 mtd: rawnand: sunxi: introduce ecc_mode_mask in sunxi_nfc_caps
The H6/H616 ECC_MODE field is not at the same offset, and has not the
same size.
So move the mask into sunxi_nfc_caps.

Also, introduce a non compile-time field_prep() because FIELD_PREP()
doesn't work with non compile-time constant.

No functional change.

Link: https://lore.kernel.org/all/cover.1761588465.git.geert+renesas@glider.be
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:04 +01:00
Richard Genoud
8c1b28ab3e mtd: rawnand: sunxi: add has_ecc_block_512 capability
The H616 controller can't handle 512 bytes ECC block size. The
NFC_ECC_BLOCK_512 bit disappeared in H6, and NDFC_RANDOM_EN took its
place.

So, add has_ecc_block_512 capability to only set this bit on SoC having
it.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:18:04 +01:00
Richard Genoud
6fc2619af1 mtd: rawnand: sunxi: rework pattern found registers
On H6/H616, the register ECC_PAT_FOUND is at its own address, and not
part of ECC status register.
So, introduce the pattern found register offset in sunxi_nfc_caps, along
with its mask.

Also, introduce a non compile-time field_get() because FIELD_GET() and
u32_get_bits() don't work with non compile-time constant.

No functional change.

Link: https://lore.kernel.org/all/cover.1761588465.git.geert+renesas@glider.be
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:17:47 +01:00
Richard Genoud
f53c74d057 mtd: rawnand: sunxi: introduce reg_user_data in sunxi_nfc_caps
The H6/H616 USER_DATA register is not at the same offset as the
A10/A23 one, so move its offset into sunxi_nfc_caps

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:16:01 +01:00
Richard Genoud
4a3a056814 mtd: rawnand: sunxi: introduce reg_ecc_err_cnt in sunxi_nfc_caps
The H6/H616 ECC_ERR_CNT register is not at the same offset as the
A10/A23 one, so move its offset into sunxi_nfc_caps

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:16:01 +01:00
Richard Genoud
94dc08adaf mtd: rawnand: sunxi: move ECC strenghts in sunxi_nfc_caps
H6/H616 has more ECC strenghts than A10/A23.

Move the ECC strenghts array to sunxi_nfc_caps to make it ready for
H6/H616 support.

No functional change.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:16:01 +01:00
Richard Genoud
1be7ac78b7 mtd: rawnand: sunxi: Replace hard coded value by a define
The user data length (4) used all over the code hard coded.
And sometimes, it's not that trivial to know that it's the user data
length and not something else.
Moreover, for the H6/H616 this value is no more fixed by hardware, but
could be modified.

Using a define here makes the code more readable.

Suggested-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:16:01 +01:00
Richard Genoud
deaa77ed66 mtd: rawnand: sunxi: Remove superfluous register readings
The register NFC_REG_ECC_CTL was read twice and the result was not used,
then a third time with a mask applied.
Removing those calls didn't change the behavior.

Tested on H616 SoC, scrambling enabled.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:16:01 +01:00
Haotian Zhang
cdf44f1add mtd: rawnand: lpc32xx_slc: fix GPIO descriptor leak on probe error and remove
The driver calls gpiod_get_optional() in the probe function but
never calls gpiod_put() in the remove function or in the probe
error path. This leads to a GPIO descriptor resource leak.
The lpc32xx_mlc.c driver in the same directory handles this
correctly by calling gpiod_put() on both paths.

Add gpiod_put() in the remove function and in the probe error path
to fix the resource leak.

Fixes: 6b923db286 ("mtd: rawnand: lpc32xx_slc: switch to using gpiod API")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:04:34 +01:00
Sakari Ailus
2052c1e59b mtd: rawnand: gpmi: Remove redundant pm_runtime_mark_last_busy() calls
pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:04:34 +01:00
Niravkumar L Rabara
bf425fa103 mtd: rawnand: cadence: Add support for NV-DDR interface mode
Add support for NV-DDR mode in the Cadence NAND controller driver.

Signed-off-by: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28 17:04:34 +01:00