From owner-freebsd-arm@freebsd.org Sun May 31 19:27:23 2020 Return-Path: Delivered-To: freebsd-arm@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 9AA8533EDE6 for ; Sun, 31 May 2020 19:27:23 +0000 (UTC) (envelope-from freebsd@cyclaero.com) Received: from mo4-p00-ob.smtp.rzone.de (mo4-p00-ob.smtp.rzone.de [81.169.146.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "*.smtp.rzone.de", Issuer "TeleSec ServerPass Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49ZpGd3YqSz3Vwb for ; Sun, 31 May 2020 19:27:20 +0000 (UTC) (envelope-from freebsd@cyclaero.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1590953239; s=strato-dkim-0002; d=cyclaero.com; h=To:References:Message-Id:Cc:Date:In-Reply-To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=JYzTuvU86jlOjYT0qlterb3pGXjjiSHhxIJB9YjrYyI=; b=TZXuz92aO+igQlHy9oBryjlQ4obLLh+UNKrKnU/4COpXXUrv6ABitC89uVZSyS8ABJ zwvQ3dTZ4fInqJg22OspyUImHjnpIO74b9dxlVPN6bd03m9rHY+2wXRACH5RPAoLk9ar 2+avdooJexDwM8IZHQEAQiq0VULV3r9NkGB3buhtDyrLEoXg+J9KXRuQT4/MASHNfXcJ e3FGZTjDkkI5/DJeUeYiKaP82z0LKPfVeN/1i6upKvCJNVzgNJ8np15M7WOAI7x6kW2T zPWTveLM3tWzQhoAHPd7k1tg/O47woKL9IikbXs4jHNI2nM6+isqRvp3rioMWcK2tj7F Xd8A== X-RZG-AUTH: ":O2kGeEG7b/pS1F2rRHW2isrKl4DV03XBEi+I6ZuztdvN9wS3wFGySS4Lw+ldTBio0dVbInGjc9PbZFAm0A==" X-RZG-CLASS-ID: mo00 Received: from mail.obsigna.com by smtp.strato.de (RZmta 46.9.0 DYNA|AUTH) with ESMTPSA id I06cf5w4VJRCAoH (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Sun, 31 May 2020 21:27:12 +0200 (CEST) Received: from rolf-mini.obsigna.com (rolf-mini.obsigna.com [192.168.222.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.obsigna.com (Postfix) with ESMTPSA id 291881350F91D; Sun, 31 May 2020 16:27:10 -0300 (-03) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Subject: Re: BeagleBone AI From: "Dr. Rolf Jansen" In-Reply-To: <20200531063124.GY4213@funkthat.com> Date: Sun, 31 May 2020 16:27:08 -0300 Cc: freebsd-arm@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <372086B8-3BD9-48A5-828A-CBA2C11601D9@cyclaero.com> References: <20200531063124.GY4213@funkthat.com> To: John-Mark Gurney X-Mailer: Apple Mail (2.3445.104.11) X-Rspamd-Queue-Id: 49ZpGd3YqSz3Vwb X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=cyclaero.com header.s=strato-dkim-0002 header.b=TZXuz92a; dmarc=none; spf=pass (mx1.freebsd.org: domain of freebsd@cyclaero.com designates 81.169.146.218 as permitted sender) smtp.mailfrom=freebsd@cyclaero.com X-Spamd-Result: default: False [-1.08 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[cyclaero.com:s=strato-dkim-0002]; RWL_MAILSPIKE_POSSIBLE(0.00)[81.169.146.218:from]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ip4:81.169.146.128/25]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[cyclaero.com]; NEURAL_HAM_LONG(-0.97)[-0.966]; NEURAL_SPAM_SHORT(0.06)[0.061]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[cyclaero.com:+]; RCPT_COUNT_TWO(0.00)[2]; FROM_NAME_HAS_TITLE(1.00)[dr]; NEURAL_HAM_MEDIUM(-1.07)[-1.072]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:6724, ipnet:81.169.144.0/22, country:DE]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[81.169.146.218:from] X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 May 2020 19:27:23 -0000 > Am 31.05.2020 um 03:31 schrieb John-Mark Gurney : >=20 > Dr. Rolf Jansen wrote this message on Fri, May 29, 2020 at 23:21 = -0300: >> What modern SBC with more than 1 I=C2=B2C bus and which can run = FreeBSD 13++ would you suggest? >=20 > I'd look at ARM64 boards. The life will be longer, and the support > from the FreeBSD community will likely receive more attention. >=20 > Many boards have multiple I2C buses... the Pine A64-LTS has a couple > I2C buses, but they are both on ribbon conenctors (TP and CSI)... >=20 > There is also the Zynq-7000 option, though it's an armv7 cpu.. > I recently brought up the Cora Z7 board... With the PL (FPGA), you > can add many more I2C interfaces... We don't have a driver for > Xilinx's AXI I2C yet, but with that, (and a bit of block building w/ > Vivado), you could have 10 or 20 I2C buses... >=20 > Let me know if you'd like more info. I looked into the specs of all Pine boards, but I could not find any = hint about a number of additional I=C2=B2C busses beyond the single one = on the Pi-2 connector. Like I wrote in a message to Ian, if FreeBSD does keep up the 32bit = support, 32bit or 64bit is not a matter of concern for me. If Pine = really got a number of I=C2=B2C busses, then I would like to learn about = this. However, the LTS part of the Pine A64-LTS is no more that much = appealing, since it ends in less than 2 years from now. What about the = Pine Rock64Pro or the Pine H64, do these also offer additional I=C2=B2C = busses? Ideal would be a SBC for which the FreeBSD support would be (almost) = ready to get started now, and this board is either new enough so chances = are that it is available in the next several years (perhaps the Pine = RockPro64) or there is a successor for on outdated but perfectly working = board lurking, for example like BBB -> BBAI. In the latter case the = expectation would be that I could port FreeBSD to it, perhaps with the = help, hints, recommendations, etc. of knowledgable people on the = FreeBSD-ARM list.=20 Thank you very much. Rolf=