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[89.204.155.168]) by smtp.googlemail.com with ESMTPSA id p15sm7721772wma.40.2020.02.29.12.19.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 29 Feb 2020 12:19:55 -0800 (PST) From: =?utf-8?Q?Klaus_K=C3=BCchemann?= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.60.0.2.5\)) Subject: Re: nVidia Jetson Re: Points to ponder Re: Showstoppers for RPI3 Date: Sat, 29 Feb 2020 21:19:51 +0100 References: <04e8e290e5d7bb810f76ece4ff33d6e1006e63cd.camel@freebsd.org> <280455B5-E201-494F-A4EB-2426A12B7E2C@googlemail.com> <20200226235908.GD22189@lonesome.com> <5AD91C8A-F4A2-4C53-9D03-CB83EDAC9C0A@gromit.dlib.vt.edu> <20200228010924.GA87999@www.zefox.net> <20200228175318.GA91232@www.zefox.net> <9e442a8e-8399-492a-add4-b76d761c6c66@localhost> <62E9D9CD-23B2-44A8-9937-9623ED8F9549@googlemail.com> <09d33240-f151-4f81-b7b8-563b0e4da06d@localhost> To: Greg V , "mikael@freebsd.org" , freebsd-arm@freebsd.org In-Reply-To: <09d33240-f151-4f81-b7b8-563b0e4da06d@localhost> Message-Id: <54D409A4-A297-4AED-B8DD-42DE4BBA5AB8@googlemail.com> X-Mailer: Apple Mail (2.3608.60.0.2.5) X-Rspamd-Queue-Id: 48VHnp0rdyz42PB X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.50 / 15.00]; TO_DN_EQ_ADDR_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FREEMAIL_FROM(0.00)[googlemail.com]; MV_CASE(0.50)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[googlemail.com:+]; DMARC_POLICY_ALLOW(-0.50)[googlemail.com,quarantine]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; IP_SCORE(0.00)[ip: (2.38), ipnet: 2a00:1450::/32(-2.41), asn: 15169(-1.67), country: US(-0.05)]; RECEIVED_SPAMHAUS_PBL(0.00)[168.155.204.89.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.11]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[googlemail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[googlemail.com]; R_DKIM_ALLOW(-0.20)[googlemail.com:s=20161025]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[3.4.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Feb 2020 20:19:59 -0000 > Am 29.02.2020 um 18:30 schrieb Greg V : >=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