[U-Boot] [RFC PATCH 00/20] SPI-NAND support

[Jagan Teki]

On Wed, Jun 6, 2018 at 9:00 PM, Miquel Raynal <miquel.raynal at 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:
> - 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.
> - DT changes to make use of a SPI NAND on the Ocelot board.
>
> Any comments on the code, the organization and the respect of U-Boot
> driver model will be welcome.
>
> Thanks,
> Miquèl
>
>
> Boris Brezillon (6):
>   mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing
>   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
>
> Frieder Schrempf (1):
>   mtd: spinand: Add initial support for Winbond W25M02GV
>
> Miquel Raynal (10):
>   mtd: fix build issue with includes
>   mtd: move definitions to enlarge their range
>   mtd: move all flash categories inside MTD submenu
>   mtd: move NAND fiels into a raw/ subdirectory
>   mtd: rename nand into rawnand in Kconfig prompt
>   mtd: spinand: Add initial support for the MX35LF2GE4AB chip
>   mtd: uclass: add probe function
>   cmd: mtd: add 'mtd' command
>   mips: dts: ocelot: describe SPI CS pins
>   mips: dts: ocelot: add the SPI NAND node
>
> Peter Pan (2):
>   mtd: nand: Add core infrastructure to support SPI NANDs
>   mtd: spinand: Add initial support for Micron MT29F2G01ABAGD

I have reviewed and commented most of the stuff that are in my
control, except few spi-nand code, which I would like to give a try to
other people in the list. Hope to seen the fine-tuning patches on next
version.

Jagan.