Date: Thu, 28 Jun 2018 14:46:16 -0600 From: Warner Losh <imp@bsdimp.com> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: Gergely Kiss <mail.gery@gmail.com>, "freebsd-embedded@freebsd.org" <freebsd-embedded@freebsd.org> Subject: Re: Atheros AR93xx NAND support Message-ID: <CANCZdfpC2ExBPytm3dmeno%2B_ZX9nCWRUJb_zmu7TZGbbokc8AQ@mail.gmail.com> In-Reply-To: <CAJ-Vmo=JQ-rgPEBOHKMigJB5Kt0QUFVWUKQAh99vvnNqFmoByw@mail.gmail.com> References: <CAF-mK=Xpmi6OStLbosfdwW7KHL4XSPky_7JDZgEosYr3m709aQ@mail.gmail.com> <CAJ-Vmo=JQ-rgPEBOHKMigJB5Kt0QUFVWUKQAh99vvnNqFmoByw@mail.gmail.com>
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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 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 > " >
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