Date: Fri, 11 Dec 2015 17:27:55 +0800 From: Ganbold Tsagaankhuu <ganbold@gmail.com> To: Stanislav Galabov <sgalabov@gmail.com> Cc: freebsd-mips@freebsd.org, kevlo@freebsd.org Subject: Re: Interest in support for Mediatek/Ralink SoCs? Message-ID: <CAGtf9xMBcFHKvtp3h-WRcF90noY5oonisy7ciMs-kWvspDHgPQ@mail.gmail.com> In-Reply-To: <F35AF02A-DC31-4B5F-9349-26C2FF47F5C2@gmail.com> References: <F35AF02A-DC31-4B5F-9349-26C2FF47F5C2@gmail.com>
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Stanislav, On Fri, Dec 11, 2015 at 4:25 PM, Stanislav Galabov <sgalabov@gmail.com> wrote: > Hi all, > > Is there any interest on bringing support for Ralink/Mediatek more > up-to-date SoCs, such as MT7620, MT7628, MT7688 and, notably, MT7621 to > FreeBSD? > > The first three are pretty standard in terms of CPU - they=E2=80=99re all= MIPS > 24Kc based, so they should =E2=80=98just work=E2=80=99 as far as booting = FreeBSD goes. > The last one and, in my opinion, the most interesting one, the MT7621 is = a > MIPS 1004Kc - dual core with dual hardware threads per core. It also > introduces new (to FreeBSD/mips) concepts such as the global interrupt > controller (gic) for example and could be interesting from this perspecti= ve > as well as it could pave the way for MIPS 1074K support as well. > > I am currently able to boot MT7621 single core to multi user. I can start > the rest of the cores and threads as well, but am still having difficulti= es > figuring out the proper cache and TLB management so it basically doesn=E2= =80=99t > support SMP at the moment. > > I have also done some work on PCI support for the MT7621 and am currently > using userland on a SATA drive, connected to an ASMedia 1061 on the PCI > bus, which seems to be quite stable as well, although the code is nowhere > near ready to show to other people :-) > Very nice. > > The support for all the peripherals, however, is not something I would be > able to take on all by myself, due to lack of spare time. > There is some support in the tree for older Ralink systems (in > sys/mips/rt305x and in sys/dev/rt for the ethernet/switch peripheral), bu= t > it needs work. > Also, the WiFi drivers do not seem to support the chipsets embedded in or > used with MT76xx, so this will be a major challenge it seems, especially > given the lack of documentation=E2=80=A6 however, a piece of good news is= that > OpenWRT supports most/all of these chipsets, so at least we would have a > frame of reference=E2=80=A6 > > So, anyone else interested in working on MT76xx support? > I think some developers in this list already have MT7621 board so maybe they have some interest and can test your changes. Ganbold > > Best wishes, > Stanislav > _______________________________________________ > freebsd-mips@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-mips > To unsubscribe, send any mail to "freebsd-mips-unsubscribe@freebsd.org"
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