From owner-freebsd-arm@freebsd.org Sun May 31 06:31:35 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 A445D32CB5D for ; Sun, 31 May 2020 06:31:35 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (gold.funkthat.com [IPv6:2001:470:800b::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "gate2.funkthat.com", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49ZT3W0hVDz4VR2 for ; Sun, 31 May 2020 06:31:34 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (localhost [127.0.0.1]) by gold.funkthat.com (8.15.2/8.15.2) with ESMTPS id 04V6VPeF077450 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sat, 30 May 2020 23:31:25 -0700 (PDT) (envelope-from jmg@gold.funkthat.com) Received: (from jmg@localhost) by gold.funkthat.com (8.15.2/8.15.2/Submit) id 04V6VOqp077449; Sat, 30 May 2020 23:31:24 -0700 (PDT) (envelope-from jmg) Date: Sat, 30 May 2020 23:31:24 -0700 From: John-Mark Gurney To: "Dr. Rolf Jansen" Cc: freebsd-arm@freebsd.org Subject: Re: BeagleBone AI Message-ID: <20200531063124.GY4213@funkthat.com> Mail-Followup-To: "Dr. Rolf Jansen" , freebsd-arm@freebsd.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Operating-System: FreeBSD 11.3-STABLE amd64 X-PGP-Fingerprint: D87A 235F FB71 1F3F 55B7 ED9B D5FF 5A51 C0AC 3D65 X-Files: The truth is out there X-URL: https://www.funkthat.com/ X-Resume: https://www.funkthat.com/~jmg/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? User-Agent: Mutt/1.6.1 (2016-04-27) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (gold.funkthat.com [127.0.0.1]); Sat, 30 May 2020 23:31:25 -0700 (PDT) X-Rspamd-Queue-Id: 49ZT3W0hVDz4VR2 X-Spamd-Bar: ++ Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of jmg@gold.funkthat.com has no SPF policy when checking 2001:470:800b::2) smtp.mailfrom=jmg@gold.funkthat.com X-Spamd-Result: default: False [2.63 / 15.00]; RCVD_TLS_ALL(0.00)[]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_SPAM_SHORT(0.37)[0.368]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[funkthat.com]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.33)[0.331]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_SPAM_LONG(0.73)[0.726]; R_SPF_NA(0.00)[no SPF record]; FORGED_SENDER(0.30)[jmg@funkthat.com,jmg@gold.funkthat.com]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; MID_RHS_MATCH_FROM(0.00)[]; FROM_NEQ_ENVFROM(0.00)[jmg@funkthat.com,jmg@gold.funkthat.com]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US] 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 06:31:35 -0000 Dr. Rolf Jansen wrote this message on Fri, May 29, 2020 at 23:21 -0300: > What modern SBC with more than 1 I²C bus and which can run FreeBSD 13++ would you suggest? I'd look at ARM64 boards. The life will be longer, and the support from the FreeBSD community will likely receive more attention. 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)... 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... Let me know if you'd like more info. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."