Date: Sat, 29 Feb 2020 21:19:51 +0100 From: =?utf-8?Q?Klaus_K=C3=BCchemann?= <maciphone2@googlemail.com> To: Greg V <greg@unrelenting.technology>, "mikael@freebsd.org" <mikael@FreeBSD.org>, freebsd-arm@freebsd.org Subject: Re: nVidia Jetson Re: Points to ponder Re: Showstoppers for RPI3 Message-ID: <54D409A4-A297-4AED-B8DD-42DE4BBA5AB8@googlemail.com> In-Reply-To: <09d33240-f151-4f81-b7b8-563b0e4da06d@localhost> References: <E866B6BE-7948-4412-82EF-999A2F8C0DF9@googlemail.com> <04e8e290e5d7bb810f76ece4ff33d6e1006e63cd.camel@freebsd.org> <280455B5-E201-494F-A4EB-2426A12B7E2C@googlemail.com> <20200226235908.GD22189@lonesome.com> <F4EB9ED4-017D-4CDC-A927-035E1C595CD4@googlemail.com> <A13BFE46-0D14-465D-9139-CB208616AF80@kronometrix.org> <5AD91C8A-F4A2-4C53-9D03-CB83EDAC9C0A@gromit.dlib.vt.edu> <20200228010924.GA87999@www.zefox.net> <d8acedc8-8acd-4e7b-a2c9-7c3f1d7cf4d3@localhost> <f5c815e512ae1d5721bca88775510b1e5d0c2bf4.camel@freebsd.org> <20200228175318.GA91232@www.zefox.net> <A6DE8945-C787-4723-8C67-27184AE81BD7@googlemail.com> <9e442a8e-8399-492a-add4-b76d761c6c66@localhost> <62E9D9CD-23B2-44A8-9937-9623ED8F9549@googlemail.com> <09d33240-f151-4f81-b7b8-563b0e4da06d@localhost>
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> Am 29.02.2020 um 18:30 schrieb Greg V <greg@unrelenting.technology>: >=20 >=20 >=20 > Feb 29, 2020 5:34:43 PM Klaus K=C3=BCchemann : >=20 >>> Am 29.02.2020 um 11:32 schrieb Greg V : >>> Feb 29, 2020 7:58:39 AM Klaus K=C3=BCchemann via freebsd-arm : >>>> I think an interesting platform for you could be the nvidia jetson = ecosystem. >>>> We could do the FreeBSD-port for the Jetson-platform >>> https://github.com/strejda/freebsd/commits/master >>>=20 >>> I think a few people use Jetson TX1/Nano as their arm64 dev boxes. = I've booted a Nintendo Switch, which has the same SoC: >>>=20 >>> https://dmesgd.nycbug.org/index.cgi?do=3Dview&id=3D4301 >>>=20 >>> but it didn't have any communication with the outside world = (something needed to be done to enable host mode on the USB-C port to = get USB devices working?) >>>=20 >>> Here's Jetson Nano: = https://dmesgd.nycbug.org/index.cgi?do=3Dview&id=3D5197 >>=20 >> Hi Greg, >>=20 >> how cool is that , >> I didn=E2=80=99t know that mikael@ worked on openjdk-port on a = Nintendo Switch ;-) >=20 > I guess this is a joke :) He has a Jetson board I think. Again, the = Switch did not allow me to do *any* I/O other than the serial console = and SD card. Heck, my UART "adapter" (wires soldered to spare joycon = rail) is so janky that the characters were sometimes corrupted :D >=20 Yeah, joke:-) but as long as there`s access to it he could do it=E2=80=A6 java was originally intended to run on a washing machine.. Character corruption mostly belongs to baudrates with me=E2=80=A6 Best results I got with picocom while testing unhacked = u-boot-versions... >> =46rom my first overview the strejda - port isn=E2=80=99t merged in = src-head? >=20 > Yeah, from what I remember mmel@ saying, this is mostly because the = boot process on the Jetson was a hack and he didn't want to commit = support for a device that can't boot normally. >=20 > But in theory it should be possible to build alternative firmware.. On = the Switch, you inject coreboot with an edk2/u-boot/whatever payload via = the USB bug. On the Jetson, you could probably flash coreboot on the = usual flash chip and it would boot normally maybe I guess??.. >=20 Thanks for the very interesting details! =E2=80=A6. >> Should we use these informations in Wiki respectively are >> you(&Mikael) interested in this? >=20 > I'm not really interested in nvidia hardware, no. >=20 >> I don`t have a Jetson available but thinking of it=E2=80=A6 >=20 > My advice would be don't support that green company. >=20 Hmm, related to what you wrote it seems to be a must have to buy a = Jetson :-) Regards Klaus=20
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