Date: Thu, 28 Jun 2018 13:17:49 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: Gergely Kiss <mail.gery@gmail.com> Cc: "freebsd-embedded@freebsd.org" <freebsd-embedded@freebsd.org> Subject: Re: Atheros AR93xx NAND support Message-ID: <CAJ-Vmo=JQ-rgPEBOHKMigJB5Kt0QUFVWUKQAh99vvnNqFmoByw@mail.gmail.com> In-Reply-To: <CAF-mK=Xpmi6OStLbosfdwW7KHL4XSPky_7JDZgEosYr3m709aQ@mail.gmail.com> References: <CAF-mK=Xpmi6OStLbosfdwW7KHL4XSPky_7JDZgEosYr3m709aQ@mail.gmail.com>
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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"
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