[meta-freescale] FlexCAN in imx6q-sabresdb

[Gary Thomas]

On 2015-05-13 04:38, Keskinarkaus, Teemu wrote:
> Hi,
>
> I’m trying to get FlexCAN driver to work in imx6q-sabre-sdb – develboard without any success.
>
> I have added FlexCAN driver as a module in kernel config as well as the other CAN-devices/drivers needed (can,can-dev, can-raw).
>
> Also I added to arch/arm/boot/dts/imx6q-sabresd.dts following lines:
>
> ----
>
> &flexcan1{
>
>                  status = "okay";
>
> };
>
> ----

Check the pin mux for the device.  You'll probably need something like this
to get it to work:

&flexcan1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_flexcan1_1>;
	status = "okay";
};

>
> After recompiling kernel and programming it to device, when I modprobe flexcan – module nothing happens. It doesn’t print that flexcan is found and when I add the other CAN-modules
> and try to access CAN0(or CAN1) they claim that there is no such device. I’ve worked with FlexCAN in imx537 so I’m somewhat familiar how to access it, but problem is that it does
> not show up at all.
>
> Is there something else needed to do to get FlexCAN working with imx6q? I did search the internet, but didn’t find anything else what should be done.
>
> Yocto version is 1.7.1 and kernel version is  linux-imx-rt-3.10.17.
>
> *Teemu Keskinarkaus
> *Software system engineer*
> *Cell: +358 400 330047*
> *Fax: +358 207 669199*
> *www.maximatecc.com <http://www.maximatecc.com/>*
>
> ***
>
> *maximatecc*
>
> making machines smart, safe and productive
>
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-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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