[PATCH v5 0/3] Introduce mtdblock device
Simon Glass
sjg at chromium.org
Wed Jun 5 04:13:34 CEST 2024
Hi Alexey,
On Mon, Jun 3, 2024, 09:57 Alexey Romanov <avromanov at salutedevices.com>
wrote:
> Hello!
>
> This series adds support for the mtdblock device, which
> allows to read/write data block by block. For example,
> it can now be used for BCB or Android AB command:
>
> $ bcb load mtd 0 part_name
>
> Tested only on SPI NAND, so bind is made only for
> SPI NAND drivers.
>
> ---
>
> Changes V1 -> V2 [1]:
>
> - Drop patch [2].
> - Add warning if bind NAND mtdblock device.
> - Move documentation of mtdblock implementation
> from commit message to the source code.
> - Remove __maybe_unused from mtd partition functions
> description.
> - Use blk_enabled() instead of #ifdefs.
>
> Changes V2 -> V3 [2]:
>
> - Rebased over [3].
> - Rename mtd_bread/bwrite -> mtd_blk_read/write.
> - Fix GPL-2.0 license short name definiton in headers.
> - Add empty line after MTD_ENTRY_NUMBERS define.
>
> Changes V3 -> V4 [4]:
>
> - Fix build warnings: use LBAF printf format string for lbaint_t types.
>
> Changes V4 -> V5 [5]:
>
> - Rebased over u-boot/master.
> - Fix build errors and warnings if CONFIG_BLK isn't enabled.
> - Fix failed tests in cases is mtdblock device isn't binded.
>
> Links:
>
> - [1]
> https://lore.kernel.org/all/20240227100441.1811047-1-avromanov@salutedevices.com/
> - [2]
> https://lore.kernel.org/all/20240227100441.1811047-5-avromanov@salutedevices.com/
> - [3]
> https://lore.kernel.org/u-boot/20240403114047.84030-1-heinrich.schuchardt@canonical.com/T/#u
> - [4]
> https://lore.kernel.org/all/20240404105813.1520732-1-avromanov@salutedevices.com/
> - [5]
> https://lore.kernel.org/all/20240524102920.2631731-1-avromanov@salutedevices.com/
>
> Alexey Romanov (3):
> disk: support MTD partitions
> drivers: introduce mtdblock abstraction
> spinand: bind mtdblock
>
> disk/part.c | 3 +-
> drivers/block/blk-uclass.c | 1 +
> drivers/mtd/Kconfig | 1 +
> drivers/mtd/Makefile | 1 +
> drivers/mtd/mtdblock.c | 227 ++++++++++++++++++++++++++++++++++++
> drivers/mtd/mtdpart.c | 76 ++++++++++++
> drivers/mtd/nand/spi/core.c | 20 ++++
> include/linux/mtd/mtd.h | 21 ++++
> include/part.h | 3 +
> 9 files changed, 352 insertions(+), 1 deletion(-)
> create mode 100644 drivers/mtd/mtdblock.c
>
> --
> 2.34.1
>
>
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