On Fri, Jul 13, 2018 at 6:01 PM, Miquel Raynal
<miquel.ray...@bootlin.com> wrote:
> During the last months, Boris Brezillon shared his work to support
> serial flashes within Linux. First, he delivered (and merged) a new
> layer called spi-mem. He also initiated in Linux MTD subsystem the move
> of all 'raw' NAND related code to a raw/ subdirectory, adding at the
> same time a NAND core that would be shared with all NAND devices. Then,
> he contributed a generic SPI-NAND driver, making use of this NAND core,
> as well as some vendor code to drive a few chips.
>
> On top of this work, I added an 'mtd' U-Boot command to handle all sort
> of MTD devices. This should become the default command instead of having
> one per flash flavor ('sf', 'nand', 'spi-nand' ?).
>
> The series has been tested on an Ocelot board PCB123 (VSC7514),
> featuring a Macronix SPI NAND chip.
>
> TL;DR: the series contains:
> - A few patches from Linux to resynchronize some areas of the MTD layer.
> - Various fixes and re-organization of the MTD subsystem.
> - The introduction of the SPI-mem interface.
> - The addition of the generic SPI-NAND driver (and its bindings).
> - Several SPI NAND chip drivers (Macronix, Micron, Winbond).
> - A new 'mtd' command.
> - Support for spi-nand devices in mtdparts.
>
> To test your SPI-NAND device with U-Boot simply follow these lines:
>
>> setenv mtdparts mtdparts=spi-nand0:1m(foo),-(bar)
>> setenv mtdids spi-nand0=spi-nand0
>> mtdparts # show the spi-nand device partitions
>> ubi part bar # create a static UBI volume in the bar partition
>
> Thanks,
> Miquèl
>
> Changes since v3:
> -----------------
> * Fixed the debug messages in spi-mem to print either Rx or Tx data.
> * Fixed a Kconfig error that prevented to build mtdparts with plain
> defconfig.
> * Fixed a compilation error due to the above error that prevented one
> file to be compiled.
> * Adapted the mtd command to probe MTD partitions also.
> * Declared mtd_probe_devices() in a header so mtdparts or UBI could
> use it too (to probe all devices and MTD partitions in a clean way).
> * As I worked on mtdparts, I found annoying and completely useless the
> fact that we need to prefix the environment variable with
> "mtdparts=". Canceled this obligation.
> * Added one patch to allow spi-nand devices to be recognized by mtdparts
> (this is purely useless but needed to be done in order to use this
> command).
> * Removed useless definitions of MTD device types in UBI code.
> * Wrote a generic mtdparts environment variable parser, used by the mtd
> command.
> * Used the mtd_probe_devices() function from get_mtd_info() in
> cmd/mtdparts.c to be sure the desired partition really does not exist
> (otherwise it will be probed and then found).
>
> Changes since v2:
> -----------------
> * Rebased on u-boot master branch.
> * Removed extra-parenthesis in
> "mtd: Fallback to ->_read/write() when ->_read/write_oob() is missing"
> * s/fiels/files/ in "mtd: move NAND fiels into a raw/ subdirectory"
> * Do not describe generic SPI device properties in SPI NAND bindings.
> * Changes in the mtd command:
> * Printing more information in 'mtd list' (device type, device
> characteristics)
> * Switch to do_div() instead of '(u32)value64b % value32b' which only
> worked because value32b was a power of 2.
> * Removed erase.chip option.
> * By default, erase/read/write happen on the full MTD device while a
> dump will only work on a single page.
>
> Changes since v1:
> -----------------
> * Fixed the nand_memorg structure of the MX35LF2GE4AB chip.
> * Added Reviewed-by tags from Jagan.
> * Backported and squashed two patches fixing things in the SPI NAND core
> received on the Linux ML.
> * Backported more changes in mtdcore.c from Linux.
> * Added a patch to add a fallback on mtd->_read/_write() in mtdcore.c
> when mtd->_read/write_oob() is not supported.
> * Removed the DT changes, useless as the DTs are not available in
> mainline yet.
> * Addressed Boris/Stefan comments on the 'mtd' command.
> * Added support for multi-pages OOB read/write.
>
>
> Boris Brezillon (7):
> mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing
> mtd: Add sanity checks in mtd_write/read_oob()
> mtd: nand: Add core infrastructure to deal with NAND devices
> mtd: nand: Pass mode information to nand_page_io_req
> spi: Extend the core to ease integration of SPI memory controllers
> mtd: spinand: Add initial support for the MX35LF1GE4AB chip
> dt-bindings: Add bindings for SPI NAND devices
>
> Brian Norris (1):
> mtd: add get/set of_node/flash_node helpers
>
> Ezequiel Garcia (1):
> mtd: Uninline mtd_write_oob and move it to mtdcore.c
>
> Frieder Schrempf (1):
> mtd: spinand: Add initial support for Winbond W25M02GV
>
> Miquel Raynal (15):
> mtd: Fallback to ->_read/write() when ->_read/write_oob() is missing
> mtd: fix build issue with includes
> mtd: move definitions to enlarge their range
> mtd: move all flash categories inside MTD submenu
> mtd: move NAND files into a raw/ subdirectory
> mtd: rename nand into rawnand in Kconfig prompt
> mtd: spinand: Add initial support for the MX35LF2GE4AB chip
> mtd: declare MTD_PARTITIONS symbol in Kconfig
> cmd: ubi: delete useless and misleading definitions
> cmd: mtdparts: accept spi-nand devices
> cmd: mtdparts: add a generic 'mtdparts' parser
> cmd: mtdparts: remove useless 'mtdparts=' prefix
> mtd: uclass: add probe function
> cmd: mtd: add 'mtd' command
> cmd: mtdparts: try to probe the MTD devices as a fallback
>
> Peter Pan (2):
> mtd: nand: Add core infrastructure to support SPI NANDs
> mtd: spinand: Add initial support for Micron MT29F2G01ABAGD
Acked--by: Jagan Teki <ja...@openedev.com>
Can you rebase on master and send the needed patches or whole? Look
like some changes been added in drivers/mtd/nand/Kconfig
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