[PATCH v7 00/24] mtd: spinand: driver improvements

[Mikhail Kshevetskiy]

Hi Michael,

is there any plans of merging it and other my mtd patches to upstream
u-boot?

Regards,
Mikhail Kshevetskiy

On 30.09.2025 11:19, Michael Nazzareno Trimarchi wrote:
> Hi all
>
> On Tue, Sep 30, 2025 at 2:21 AM Mikhail Kshevetskiy
> <mikhail.kshevetskiy at iopsys.eu> wrote:
>> This patch series makes u-boot SPI NAND driver almost the same as in
>> linux-6.17. This provides the following improvements:
>>  * it becomes easy to port changes from linux kernel
>>  * more flash is supported
>>  * spi drivers can accelerate flash reading/writing using spi-mem dirmap API
>>  * continuous reading mode was supported (for some flashes)
>>  * OTP support was added (for some flashes)
>>  * add support of special data recovery reading (for some flashes)
>>  * bug fixes
>>  * other minor improvements
>>
>> The following linux kernel driver features was not implemented
>>  * support of different ECC engines
>>  * per operation maximum spi bus frequency
>>
>> The code has been tested on Airoha AN7581 (64-bit) based boards
>> equipped with flash memory Micron MT29F2G01ABAGD
>>
>> Additionally the patch series includes continuous reading mode fixes.
>> The corresponding linux patches were accepted to nand/next branch
>> of mtd/linux.git repository.
>>
>> Changes v2:
>>  * update patch description
>>  * add fixes for continuous reading mode
>>
>> Changes v3:
>>  * fix duplication in patch description
>>  * add more information about commits ported from linux kernel
>>
>> Changes v4:
>>  * the original authorship was preserved for several patches
>>  * the code was synced with the latest shapshot of future linux-6.17-rc1
>>  * spi-nand was replaced by spinand in patch description
>>  * continuous reading mode fixes were updated
>>
>> Changes v5:
>>  * add missed SoB tags
>>  * improve patch messages
>>  * add tags for patches ported from linux
>>  * drop continuous mode fixes (will be sent after corresponding linux fixes)
>>
>> Changes v6:
>>  * improve patch messages
>>
>> Changes v7:
>>  * patches to fix continuous reading mode was added.
>>
>> Alexander Lobakin (1):
>>   mtd: spinand: core: add missing MODULE_DEVICE_TABLE()
>>
>> Cheng Ming Lin (2):
>>   mtd: spinand: Add support for setting plane select bits
>>   mtd: spinand: Add read retry support
>>
>> Daniel Golle (1):
>>   mtd: spinand: set bitflip_threshold to 75% of ECC strength
>>
>> Gabor Juhos (1):
>>   mtd: spinand: propagate spinand_wait() errors from
>>     spinand_write_page()
>>
>> Mikhail Kshevetskiy (15):
>>   spi: spi-mem: Extend SPI MEM ops to match Linux 6.16
>>   mtd: spinand: Use the spi-mem dirmap API
>>   mtd: spinand: Extend spinand_wait() to match Linux kernel
>>     implementation
>>   mtd: spinand: Make use of spinand_to_[mtd/nand]() helpers
>>   mtd: spinand: Align logic for enabling ECC to match Linux kernel
>>   mtd: spinand: Refactor spinand_init* functions
>>   mtd: spinand: Refactor ECC/OOB functions
>>   mtd: spinand: Sync core code and device support with Linux 6.10
>>   mtd: spinand: add support of continuous reading mode
>>   mtd: spinand: add OTP support
>>   mtd: spinand: Enhance the logic when picking a variant
>>   mtd: spinand: Sync core code and device support with Linux 6.17-rc1
>>   mtd: spinand: fix direct mapping creation sizes
>>   mtd: spinand: try a regular dirmap if creating a dirmap for continuous
>>     reading fails
>>   mtd: spinand: repeat reading in regular mode if continuous reading
>>     fails
>>
>> Miquel Raynal (2):
>>   mtd: nand: Add a NAND page I/O request type
>>   mtd: spinand: Add a ->configure_chip() hook
>>
>> Takahiro Kuwano (2):
>>   mtd: spinand: Remove write_enable_op() in markbad()
>>   mtd: spinand: Introduce a way to avoid raw access
>>
>>  drivers/mtd/nand/spi/Makefile         |   5 +-
>>  drivers/mtd/nand/spi/alliancememory.c | 155 ++++
>>  drivers/mtd/nand/spi/ato.c            |  88 +++
>>  drivers/mtd/nand/spi/core.c           | 975 +++++++++++++++++++-------
>>  drivers/mtd/nand/spi/esmt.c           | 123 +++-
>>  drivers/mtd/nand/spi/foresee.c        | 107 +++
>>  drivers/mtd/nand/spi/gigadevice.c     |  86 ++-
>>  drivers/mtd/nand/spi/macronix.c       | 289 ++++++--
>>  drivers/mtd/nand/spi/micron.c         | 180 ++++-
>>  drivers/mtd/nand/spi/otp.c            | 369 ++++++++++
>>  drivers/mtd/nand/spi/paragon.c        |  24 +-
>>  drivers/mtd/nand/spi/skyhigh.c        | 149 ++++
>>  drivers/mtd/nand/spi/toshiba.c        |  63 +-
>>  drivers/mtd/nand/spi/winbond.c        | 361 +++++++++-
>>  drivers/mtd/nand/spi/xtx.c            |  20 +-
>>  drivers/spi/spi-mem.c                 |  45 +-
>>  include/linux/mtd/nand.h              | 157 ++++-
>>  include/linux/mtd/spinand.h           | 374 ++++++++--
>>  include/spi-mem.h                     |  93 ++-
>>  19 files changed, 3154 insertions(+), 509 deletions(-)
>>  create mode 100644 drivers/mtd/nand/spi/alliancememory.c
>>  create mode 100644 drivers/mtd/nand/spi/ato.c
>>  create mode 100644 drivers/mtd/nand/spi/foresee.c
>>  create mode 100644 drivers/mtd/nand/spi/otp.c
>>  create mode 100644 drivers/mtd/nand/spi/skyhigh.c
>>
>> --
>> 2.51.0
>>
> Long queue but I will pick them today, together with mtd patches
>
> Michael
>