FreeBSD NAND flash driver

[Ivan Voras]

Andrew Turner wrote:
> I've been working on a FreeBSD NAND flash driver and NAND simulator [1].
> I have tested reading and writing to the simulated NAND device but not
> erasing.

Hi,

Have you seen this:
http://lists.freebsd.org/pipermail/freebsd-arch/2009-April/009146.html ?

Is the new proposal actually obsolete?

> It is not usable yet as the write will not perform any deletes from the
> device, either the file system or another geom will have to issue
> a BIO_DELETE followed by BIO_WRITE's to write to the disk. This is done
> to support NAND flash aware file systems.
> 
> TODO:
>  * ECC support.
>  * Add GEOM attributes to get information about the NAND device out,
>    eg. Block size, OOB data, etc.
>  * Test the erase code.
>  * Add support for real hardware.
>  * Read the parameter page on parts that support it to get the required
>    information.
> 
> Andrew
> 
> [1] http://fubar.geek.nz/files/freebsd/nand/freebsd-nand-20090405.tar.gz

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