Hello, ping.
On Wed, Jun 26, 2024 at 01:44:37PM +0300, Alexey Romanov 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.
Changes V5 -> V6 [6]:
- Rebased over u-boot/master.
- Fix build errors when CONFIG_MTD isn't enabled.
- Use auto blk device devnum generation when call blk_create_devicef (pass -1 parameter instead of dev_seq(dev)).
Links:
- [1] https://lore.kernel.org/all/20240227100441.1811047-1-avromanov@salutedevices...
- [2] https://lore.kernel.org/all/20240227100441.1811047-5-avromanov@salutedevices...
- [3] https://lore.kernel.org/u-boot/20240403114047.84030-1-heinrich.schuchardt@ca...
- [4] https://lore.kernel.org/all/20240404105813.1520732-1-avromanov@salutedevices...
- [5] https://lore.kernel.org/all/20240524102920.2631731-1-avromanov@salutedevices...
- [6] https://lore.kernel.org/all/20240603155702.1840464-1-avromanov@salutedevices...
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 | 3 + drivers/mtd/mtdblock.c | 227 ++++++++++++++++++++++++++++++++++++ drivers/mtd/mtdpart.c | 76 ++++++++++++ drivers/mtd/nand/spi/core.c | 20 ++++ include/linux/mtd/mtd.h | 25 ++++ include/part.h | 3 + 9 files changed, 358 insertions(+), 1 deletion(-) create mode 100644 drivers/mtd/mtdblock.c
-- 2.34.1