Date: Sun, 05 Apr 2009 14:57:10 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-geom@freebsd.org Cc: freebsd-embedded@freebsd.org Subject: Re: FreeBSD NAND flash driver Message-ID: <gra9rt$iv5$1@ger.gmane.org> In-Reply-To: <20090405175014.6aef7016@fubar.geek.nz> References: <20090405175014.6aef7016@fubar.geek.nz>
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[-- Attachment #1 --] 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 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAknYqqwACgkQldnAQVacBciaMQCcD7oMrpwaQ6CNIQ8wLgEnWh9F EtEAnA85mbYlPZktJltnIfV1ho3SzGT8 =YD/8 -----END PGP SIGNATURE-----help
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