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Date:      Sat, 29 Feb 2020 17:30:38 +0000 (UTC)
From:      Greg V <greg@unrelenting.technology>
To:        =?UTF-8?Q?Klaus_K=C3=BCchemann?= <maciphone2@googlemail.com>
Cc:        "mikael@freebsd.org" <mikael@FreeBSD.org>, freebsd-arm@freebsd.org
Subject:   Re: nVidia Jetson Re: Points to ponder Re: Showstoppers for RPI3
Message-ID:  <09d33240-f151-4f81-b7b8-563b0e4da06d@localhost>
In-Reply-To: <62E9D9CD-23B2-44A8-9937-9623ED8F9549@googlemail.com>
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>

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Feb 29, 2020 5:34:43 PM Klaus K=C3=BCchemann :

> > 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 ec=
osystem.
> > > We could do the FreeBSD-port for the Jetson-platform
> > https://github.com/strejda/freebsd/commits/master
> >
> > 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:
> >
> > https://dmesgd.nycbug.org/index.cgi?do=3Dview&id=3D4301
> >
> > 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?)
> >
> > Here's Jetson Nano: https://dmesgd.nycbug.org/index.cgi?do=3Dview&id=3D=
5197
>
> Hi Greg,
>
> how cool is that ,
> I didn=E2=80=99t know that mikael@ worked on openjdk-port on a Nintendo S=
witch ;-)

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

> From my first overview the strejda - port isn=E2=80=99t merged in src-hea=
d?

Yeah, from what I remember mmel@ saying, this is mostly because the boot pr=
ocess on the Jetson was a hack and he didn't want to commit support for a d=
evice that can't boot normally.

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 US=
B bug. On the Jetson, you could probably flash coreboot on the usual flash =
chip and it would boot normally maybe I guess??..

> Should we use these informations in Wiki respectively are
> you(&Mikael) interested in this?

I'm not really interested in nvidia hardware, no.

> I don`t have a Jetson available but thinking of it=E2=80=A6

My advice would be don't support that green company.




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