From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Hartkopp Subject: Re: Enable both CAN interfaces of BeagleBone Black Date: Mon, 24 Nov 2014 19:13:00 +0100 Message-ID: <5473752C.8090505@hartkopp.net> References: <54735986.2090603@ep1.ruhr-uni-bochum.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mo4-p00-ob.smtp.rzone.de ([81.169.146.163]:8814 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751304AbaKXSOM (ORCPT ); Mon, 24 Nov 2014 13:14:12 -0500 In-Reply-To: <54735986.2090603@ep1.ruhr-uni-bochum.de> Sender: linux-can-owner@vger.kernel.org List-ID: To: Florian Feldbauer , linux-can@vger.kernel.org Hello Florian, the problem is that the pins for DCAN0 are usually used by the I2C for the EEPROM that contains device-tree informations for the beagle-cape. So you need to disable the I2C device-tree automatism (if enabled) and then assign the two pins to be DCAN0. The best tutorial I've seen so far is here: http://www.embedded-things.com/bbb/enable-canbus-on-the-beaglebone-black/ Regards, Oliver On 24.11.2014 17:15, Florian Feldbauer wrote: > Hey all, > > I've a BeagleBone Black here, and I would like to use > _both_ CAN interfaces of the SoC. > Does anybody know how to enable them? > > I'm using the debian sd-card image from > http://beagleboard.org/latest-images > > Best regards, > Florian >