From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x22b.google.com (mail-lf0-x22b.google.com [IPv6:2a00:1450:4010:c07::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 9A0323B2B3 for ; Sun, 26 Jun 2016 15:58:16 -0400 (EDT) Received: by mail-lf0-x22b.google.com with SMTP id f6so144027683lfg.0 for ; Sun, 26 Jun 2016 12:58:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=QVZDu5E+OttGQr++YfW468J4cgBmIrXLE19n9Yt2+J8=; b=F7x6iw+7q8xAfPr1AjTKVo4sYHR1wPvgXsofGxbm9yUuBvFUIM8d4uctbmit79UCtE h43AM7JiM/meD9msv/iBdfD4igCbWN0UxZ6EclbbyqWSsTSNbEVz+1oZXJJu2wxgzCDC yU1MMyetpLSUpPKF2xAao0JiX4HWRgj+9tB1trO/huTsIAP7A/ynHAlaUv8vTGZyf32u Hxv7ae7A8qTLfowiSL8ij6AlocQEN4Z8gBo+Vq7JrYyDdGhblrcQVGwn2k4e9yMXEGlG RPTzBsCGPZH3otAx82dBKKFp2jN/G4PtLcAsKxg0JkGHi7oqr2gYI2+z66rN8UIdEOmX sWkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=QVZDu5E+OttGQr++YfW468J4cgBmIrXLE19n9Yt2+J8=; b=munoD7ZNxrOH2VSfI+VWzjotiwinLvPk0f+ikpYLtB+e9UmOkDomiXSJ2GeK2ig49N hqWgtf0ZydLZj/ITAC5Ev/UyI8HpQkiwE81lzTPnDJ+pzeqXt69/1/mTQcWcQyBjuhFM 2bZzrRvnm6GfZ4Vei+jprcXNRi7WEHhc5CLNbjirauIy8sZtVakGJZyU4aJMjmT7VxEs zP/S7RHpS3oB0fhiMJPNkw4L+8TJ9XmcNHG8REQM5V49s/cTWD/F1oKmhR8vsivYB7gn 63nhtZb/sn0+/4LlVlKauW0AVOKLd+2UwgLjFfwqZ/PCucSpavZE5Muyqdcr8htpxFjC Jnzw== X-Gm-Message-State: ALyK8tL+2UjwRQTuuIjF1jyfcUGbmbYUmUz6T/6CcsYKPOtr29lgAyQ5ONiasEXC1FtM2w== X-Received: by 10.25.39.78 with SMTP id n75mr4512306lfn.91.1466971095250; Sun, 26 Jun 2016 12:58:15 -0700 (PDT) Received: from bass.home.chromatix.fi (37-33-96-207.bb.dnainternet.fi. [37.33.96.207]) by smtp.gmail.com with ESMTPSA id h31sm2636488ljh.29.2016.06.26.12.58.12 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 26 Jun 2016 12:58:14 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Jonathan Morton In-Reply-To: <20160626190244.GB29321@lud.polynome.dn42> Date: Sun, 26 Jun 2016 22:58:08 +0300 Cc: Juliusz Chroboczek , "babel-users@lists.alioth.debian.org" , "cerowrt-devel@lists.bufferbloat.net" , Harald Geyer Content-Transfer-Encoding: quoted-printable Message-Id: <71E65F1D-C3EA-4124-A88A-F540F3E64150@gmail.com> References: <87lh1xihnv.wl-jch@pps.univ-paris-diderot.fr> <87vb0zpnel.wl-jch@pps.univ-paris-diderot.fr> <87oa6rpl7h.wl-jch@pps.univ-paris-diderot.fr> <87mvmbpi7d.wl-jch@pps.univ-paris-diderot.fr> <87mvm7q1ap.wl-jch@pps.univ-paris-diderot.fr> <20160626190244.GB29321@lud.polynome.dn42> To: Baptiste Jonglez X-Mailer: Apple Mail (2.3124) Subject: Re: [Cerowrt-devel] [Babel-users] Why we are discussing ARM [was: Cross-compiling to armhf] X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Jun 2016 19:58:16 -0000 > On 26 Jun, 2016, at 22:02, Baptiste Jonglez = wrote: >=20 >> Do you know how the Ethernet is hooked to the SoC? I could be wrong, = but >> I don't think Allwinner SoCs include GMII. >=20 > I suggest you look at the schematics (here for LIME2): >=20 > = https://github.com/OLIMEX/OLINUXINO/raw/master/HARDWARE/A20-OLinuXino-LIME= 2/A20-OLinuXino-Lime2_Rev_G.pdf >=20 > Looking quickly, this looks like a SPI interface. I'm really not a > hardware expert though, so you'd better check yourself. It looks like GMII to me. That=E2=80=99s a good thing. SPI would be extremely unlikely - it just doesn=E2=80=99t have that sort = of bandwidth, and I=E2=80=99ve never heard of it being used to attach = Ethernet before. It appears that some of the pins used for GMII on the = AllWinner are shared with one of the SPI interfaces (and a serial UART) = - they can be used for one purpose or the other, but not both. This is = quite common practice in the embedded world. - Jonathan Morton=