Re: AW: [Socketcan-users] [socketcan]problem to using CAN with BeagleBone Black A5A

[Oliver Hartkopp <socketcan@hartkopp.net>]

Hello Mike,

thanks for pointing to that comprehensive documentation.

I was asked by a colleague how to get both internal CAN controllers working
instead of adding SPI-based MCP2515 interfaces.

Good job!

Best regards,
Oliver

On 07.06.2013 21:46, Michael Luxen wrote:
> Hello Mohamed,
> 
> is you question still open or answered already?
> 
> If still open, please have a look on this page where you can find how to enable the CAN-Devices on BeagleBone Black.
> http://www.aero-box.co.uk/beaglebone-black#TOC-Enable-CANbus-device
> 
> The only thing you have to do is to edit the am335x-bone-common.dtsi file for enabling dcan0 and/or dcan1.
> Please have in mind that dcan0 is normaly used for the optional Capes, as they use the I2C2 pins which are muxed on the same pins than dcan0.
> Nevertheless I've edited am335x-bone-common.dtsi successfully to enable dcan0 and dcan1. On my BeagleBone Black (Hardware A5A) eveything is running fine on both internal CAN-Interfaces with latest Angstrom and latest Debian as well.
> Keep in mind that you have to put a CAN-transceiver on the Pins 20/19 (DCAN0) an 24/26 (DCAN1) on your BeagleBone Black.
> 
> Regards
> Mike
> 
> -----Ursprüngliche Nachricht-----
> Von:	Martin Gysel <m.gysel@gmail.com>
> Gesendet:	Di 04.06.2013 13:32
> Betreff:	Re: [Socketcan-users] [socketcan]problem to using CAN with BeagleBone Black A5A
> An:	linux-can@vger.kernel.org; 
> CC:	socketcan-users@lists.berlios.de; 
>> Am 25.05.2013 00:49, schrieb Mohamed HAMZAOUI:
>>> Hi,
>>>
>>> I started with beaglebone black A5A, i installed on it the latest
>>> Angstrom image with : Linux beaglebone 3.8.13 #1 SMP Mon May 20
>>> 17:07:58 CEST 2013 armv7l GNU/Linux
>>>
>>> I have a problem when I try to add a can device, i load with modprobe
>>> all necessary kernel module (can, ti_hecc, c_can, c_can_platform,
>>> can-raw, can-bcm) but when i execute
>>>> ip link add can0 type can
>>> I have : RTNETLINK answers: Operation not supported
>>> I used a recent version of iproute2.
>>
>> did you initialize the can module? do you use a can cape? if yes, does
>> your kernel already include the needed dts to enable the can module?
>>
>> /martin
>>
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