Hello all,
Last week i was working on enabling CAN interface on i.MX6 solo based board. I am able to bring up the CAN interface with necessary changes in dts file
In imx6qdl.dtsi added clocks of nodes.
can1: flexcan@02090000 {
compatible = "fsl,imx6q-flexcan";
reg = <0x02090000 0x4000>;
interrupts = <0 110 0x04>;
clocks = <&clks 108>, <&clks 109>;
clock-names = "ipg", "per";
};
can2: flexcan@02094000 {
compatible = "fsl,imx6q-flexcan";
reg = <0x02094000 0x4000>;
interrupts = <0 111 0x04>;
clocks = <&clks 110>, <&clks 111>;
clock-names = "ipg", "per";
};
In my board dts file I have added
&can1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan1_1>;
status = "okay";
};
I am able to see the can interface up and also able to set the bit rate. But the board is not sending any CAN frames outside.
Finally I found there is mismatch in the CAN root clock configuration. Later I found a link tells about the same issue and and solution.
http://patchwork.openwrt.org/patch/4531/
Hope this helps for those who enable CAN on 3.10.9 kernel on i.MX6
Krishnan
