Date: Sat, 12 Dec 2015 10:14:47 +0200 From: Stanislav Galabov <sgalabov@gmail.com> To: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: Interest in support for Mediatek/Ralink SoCs? Message-ID: <6CE6533C-D7CE-4B17-9530-3559A4F5D0CD@gmail.com> In-Reply-To: <435B59EC-2C17-48FC-AED1-337DBE6829CB@gmail.com> References: <F35AF02A-DC31-4B5F-9349-26C2FF47F5C2@gmail.com> <E4AEB37F-8E44-4371-8E2B-231711E08D17@gmail.com> <CAJ-VmonsorjWktcrWvREXCM_gDrk9S7X_U18HhjOpLZ-WPz46w@mail.gmail.com> <E66699CE-C068-4084-845A-ABBB227C495B@gmail.com> <435B59EC-2C17-48FC-AED1-337DBE6829CB@gmail.com>
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Sorry, the previous version was compiled with SMP support, which is far = from working right now=E2=80=A6 please use the following one for now if = interested: https://www.dropbox.com/s/t1wevprzlsfegr0/kernel.uboot?dl=3D0 Stanislav > On Dec 12, 2015, at 09:57, Stanislav Galabov <sgalabov@gmail.com> = wrote: >=20 > Hi all, >=20 > I=E2=80=99ve sent the files to Adrian and will be cleaning things next = week so we can start off with MT7621 support a little cleaner. >=20 > In the meantime, if anyone wants to try to boot a kernel on their = MT7621 boards, I=E2=80=99ve put one here: > https://www.dropbox.com/s/t1wevprzlsfegr0/kernel.uboot?dl=3D0 >=20 > It=E2=80=99s a uImage, so you=E2=80=99d have to get it on the board in = u-boot via tftp and do a bootm on it. > For example (from the u-boot prompt): > tftp 0x80800000 kernel.uboot; bootm 0x80800000 >=20 > There currently is no file system within the kernel. It expects to = find a filesystem on ada0, attached to ASMedia 1061 on the pci bus (in = case your boards have SATA ports). So if you don=E2=80=99t have SATA you = won=E2=80=99t have a filesystem, but at least we=E2=80=99ll know whether = it boots on your boards or not. >=20 > Please let me know if it boots on your boards. >=20 > Best wishes, > Stanislav >=20 >> On Dec 11, 2015, at 18:40, Stanislav Galabov <sgalabov@gmail.com> = wrote: >>=20 >> Now this is something I was hoping for :-) >>=20 >> I=E2=80=99ll tidy things up next week and I=E2=80=99ll send the = initial dirty patches over to you only (for now) if it=E2=80=99s ok with = you? >> I=E2=80=99ve hacked on top of the rt305x support that=E2=80=99s in = the tree for now, but in a mt762x directory and there are still a lot of = leftovers from rt305x, but at least the thing boots and goes multiuser = albeit on a single core right now :-) >>=20 >> Please let me know if this works for you. >>=20 >> Best wishes, >> Stanislav >>=20 >>> On Dec 11, 2015, at 18:36, Adrian Chadd <adrian.chadd@gmail.com> = wrote: >>>=20 >>> hi, >>>=20 >>> holy hell yes. >>>=20 >>> Can you please put all of your patches up online? I acquired some >>> MT7621 hardware to do a port, and I see you've beaten me to it. I'd >>> like to get it up and working so I can work on the 11ac wifi = support. >>>=20 >>> (I don't mind how dirty or what you think the work is - it's going = to >>> be great, and I'll tidy it up and get it into -HEAD.) >>>=20 >>> Thanks! >>>=20 >>>=20 >>> -a >>>=20 >>>=20 >>> On 11 December 2015 at 08:06, Stanislav Galabov <sgalabov@gmail.com> = wrote: >>>>=20 >>>>> On Dec 11, 2015, at 10:25, Stanislav Galabov <sgalabov@gmail.com> = wrote: >>>>>=20 >>>>> Hi all, >>>>>=20 >>>>> 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? >>>>>=20 >>>>> The first three are pretty standard in terms of CPU - they=E2=80=99r= e 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 perspective as well as it could pave the way for MIPS 1074K support = as well. >>>>>=20 >>>>> 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 = difficulties figuring out the proper cache and TLB management so it = basically doesn=E2=80=99t support SMP at the moment. >>>>>=20 >>>>> 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 :-) >>>>>=20 >>>>> 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), = but 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 >>>>>=20 >>>>> So, anyone else interested in working on MT76xx support? >>>>>=20 >>>>> Best wishes, >>>>> Stanislav >>>>=20 >>>> Hi all, >>>>=20 >>>> I can put a single core kernel (uImage) somewhere (where?) so you = guys can download it and see if it starts up on your boards=E2=80=A6 >>>> It won=E2=80=99t do too much at the moment, unless you have a SATA = disk with root filesystem (UFS) attached on an ASMedia 1061 on PCIe. :-) >>>>=20 >>>> Also, for the guys that mentioned they had MT7621 based boards: how = much RAM do you guys have on your boards? I have 512MB on mine, but = I=E2=80=99ve currently hard-coded the kernel to use 256MB. >>>>=20 >>>> 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" >>=20 >=20
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