[U-Boot] [PATCH v6 00/31] SPI-NAND support

Boris Brezillon boris.brezillon at bootlin.com
Thu Aug 16 16:58:58 UTC 2018


Tom, Jagan,

On Thu, 16 Aug 2018 17:29:58 +0200
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 made some cleanups in the MTD layer and 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)
> > ubi part bar         # create a static UBI volume in the bar partition
> > mtd list             # show the current MTD devices/partitions  
> 
> Thanks,
> Miquèl
> 

[...]

Can we get some of those patches merged to avoid sending another
version containing more than 30 patches. Here is a list of patches which
IMO are ready to be merged:

 - 1 to 4
 - 5 and 6 if 6 is squashed in 5
 - 7 to 23

Regards,

Boris


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