[meta-freescale] Flexcan is not working on I.MX 6Q SABRE SD board

Paventhan K Paventhan.K at LntTechservices.com
Tue May 20 05:35:45 PDT 2014


Hi,
    I am using Freescale I.MX6Q SABRE SD board with revisions SCH-27516 rev C2, 700-27516 rev A. I  downloaded the Yocto 1.6(daisy) for Freescale BSP using the following instructions by https://community.freescale.com/docs/DOC-1616.

     I added the flexcan node in the file: imx6dl-sabresd.dts.  following the instructions provided in https://www.mail-archive.com/meta-freescale@yoctoproject.org/thrd3.html
---
&flexcan1 {
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_flexcan1_1>;
    status = "okay";
};
---

Now the can-node is available in the dev-tree:
---
root <at> imx6qsabresd:~# dmesg | grep can
vcan: Virtual CAN interface driver
flexcan 2090000.can: device registered (reg_base=c09d8000, irq=142)
can: controller area network core (rev 20120528 abi 9)
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)
can: netlink gateway (rev 20130117) max_hops=1
flexcan 2090000.can can0: writing ctrl=0x07292005
---

    I interfaced Freescale I.MX 6Q Sabre sd board(CAN_H & CAN_L)  and Vector CANcase XL log. When i do cansend the bus state goes off. I checked the termination resistor between CAN_H & CAN_L which is 60 ohm. Please, suggest us to bring up the can device.

Thanks & Regards,
Paventhan K


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