Date: Sun, 31 May 2020 16:27:08 -0300 From: "Dr. Rolf Jansen" <freebsd@cyclaero.com> To: John-Mark Gurney <jmg@funkthat.com> Cc: freebsd-arm@freebsd.org Subject: Re: BeagleBone AI Message-ID: <372086B8-3BD9-48A5-828A-CBA2C11601D9@cyclaero.com> In-Reply-To: <20200531063124.GY4213@funkthat.com> References: <DCF67826-C2CA-461F-9A61-F934F6FB042A@cyclaero.com> <20200531063124.GY4213@funkthat.com>
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> Am 31.05.2020 um 03:31 schrieb John-Mark Gurney <jmg@funkthat.com>: >=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= are that it is available in the next several years (perhaps the Pine = RockPro64) or there is a successor for on outdated but perfectly working = board lurking, for example like BBB -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=
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