Date: Fri, 29 Jun 2018 01:10:42 +0200 From: Emmanuel Vadot <manu@bidouilliste.com> To: Warner Losh <imp@bsdimp.com> Cc: Adrian Chadd <adrian.chadd@gmail.com>, "freebsd-embedded@freebsd.org" <freebsd-embedded@freebsd.org> Subject: Re: Atheros AR93xx NAND support Message-ID: <20180629011042.6e72464d7fc3294d96dd093f@bidouilliste.com> In-Reply-To: <CANCZdfpC2ExBPytm3dmeno%2B_ZX9nCWRUJb_zmu7TZGbbokc8AQ@mail.gmail.com> References: <CAF-mK=Xpmi6OStLbosfdwW7KHL4XSPky_7JDZgEosYr3m709aQ@mail.gmail.com> <CAJ-Vmo=JQ-rgPEBOHKMigJB5Kt0QUFVWUKQAh99vvnNqFmoByw@mail.gmail.com> <CANCZdfpC2ExBPytm3dmeno%2B_ZX9nCWRUJb_zmu7TZGbbokc8AQ@mail.gmail.com>
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On Thu, 28 Jun 2018 14:46:16 -0600 Warner Losh <imp@bsdimp.com> wrote: > If you had good access to datasheets, plus errata, plus vendor support, you > might be able to get a quality implementation in 3-4 months time, which > would include time to revamp our NAND system. It doesn't include time to > revamp NANDFS, though, which would be another 2-3 months to get rock solid. > > Warner I don't know the state of NAND in MIPS world but in the ARM world it's clearly fading out. But I've always wondered if instead of NANDFS one could do a geom_ftl (Flash Transision Layer) that will do all the nand stuff and then we can use UFS on it ? > On Thu, Jun 28, 2018 at 2:17 PM, Adrian Chadd <adrian.chadd@gmail.com> > wrote: > > > Hi, > > > > There's currently no support for the NAND chip. I started a driver, > > but i reached a point where I realised we'd have to churn our NAND > > layer a bit in order to get it working. The AR934X NAND controller > > isn't a dumb latch and wants to actually issue its own JEDEC commands > > and do DMA. > > > > > > > > -adrian > > > > On Wed, 9 May 2018 at 07:05, Gergely Kiss <mail.gery@gmail.com> wrote: > > > > > > Hi, > > > > > > I have a home project about porting FreeBSD to my beloved Netgear > > > WNDR4300 V.1 board and would like to ask for a little bit of help. > > > > > > The board is basically an Atheros DB120 reference board with a few > > > minor modifications (eg. it does not have SPI flash on-board, only a > > > NAND chip and has custom designed, "patent pending" integrated > > > antennas) so I cloned the DB120 kernel configuration and modified to > > > match the parameters of the Netgear board. > > > > > > As the SPI flash chip is absent, I need to boot FreeBSD off the NAND > > > chip which works fine up to the point where the kernel is loaded but > > > the root filesystem (also residing on the NAND chip) cannot be mounted > > > because of the NAND controller not detected. > > > > > > I'm using FreeBSD CURRENT with the NAND framework and NANDFS support > > > enabled in the kernel configuration according to instructions found on > > > the NAND wiki page [1] but I still can't see the NAND controller > > > detected. > > > > > > Please advise. > > > > > > As per this [2] wiki page, the controller should be detected as > > > "ar934x_nfc0" but I can't see anything like that in the logs: > > > > > > "ar934x_nfc0: <AR934x NAND controller> on apb0" > > > > > > Your help is much appreciated. > > > > > > Thanks, > > > Gergely > > > > > > [1] https://wiki.freebsd.org/NAND > > > [2] https://github.com/freebsd/freebsd-wifi-build/wiki/ > > Atheros-ReferenceDB120 > > > _______________________________________________ > > > freebsd-embedded@freebsd.org mailing list > > > https://lists.freebsd.org/mailman/listinfo/freebsd-embedded > > > To unsubscribe, send any mail to "freebsd-embedded-unsubscribe@ > > freebsd.org" > > _______________________________________________ > > freebsd-embedded@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-embedded > > To unsubscribe, send any mail to "freebsd-embedded-unsubscribe@freebsd.org > > " > > > _______________________________________________ > freebsd-embedded@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-embedded > To unsubscribe, send any mail to "freebsd-embedded-unsubscribe@freebsd.org" -- Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>
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