i.MX6D ethernet communication fail

[jonathanpoulin]

Hi,

I'm working to update the OS of our costum i.MX6D board. I have a working OS build from Yocto Dizzy (linux-imx_3.10.17). I now try to update to Yocto krogoth with linux-fsl-imx_4.1-1.0.x and u-boot-fslc_2016.07.

The ethernet card (FEC) work correctly in u-boot but not in linux. The driver is loaded correctly.

fec 2188000.ethernet eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=2188000.ethernet:00, irq=-1)
fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx

The interface is correctly mount statically.

eth0      Link encap:Ethernet  HWaddr 00:1D:E9:00:94:D6
          inet addr:192.168.0.11  Bcast:0.0.0.0  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:2 dropped:0 overruns:0 frame:2
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:252 (252.0 B)

But I can't see anything going on the network with wireshark. Also, I see that the received packets are in CRC error.

 ~# ethtool -S eth0
NIC statistics:
     tx_dropped: 0
     tx_packets: 6
     tx_broadcast: 6
     tx_multicast: 0
     tx_crc_errors: 0
     tx_undersize: 0
     tx_oversize: 0
     tx_fragment: 0
     tx_jabber: 0
     tx_collision: 0
     tx_64byte: 6
     tx_65to127byte: 0
     tx_128to255byte: 0
     tx_256to511byte: 0
     tx_512to1023byte: 0
     tx_1024to2047byte: 0
     tx_GTE2048byte: 0
     tx_octets: 384
     IEEE_tx_drop: 0
     IEEE_tx_frame_ok: 6
     IEEE_tx_1col: 0
     IEEE_tx_mcol: 0
     IEEE_tx_def: 0
     IEEE_tx_lcol: 0
     IEEE_tx_excol: 0
     IEEE_tx_macerr: 0
     IEEE_tx_cserr: 0
     IEEE_tx_sqe: 0
     IEEE_tx_fdxfc: 0
     IEEE_tx_octets_ok: 384
     rx_packets: 236
     rx_broadcast: 0
     rx_multicast: 0
     rx_crc_errors: 220
     rx_undersize: 0
     rx_oversize: 0
     rx_fragment: 16
     rx_jabber: 0
     rx_64byte: 0
     rx_65to127byte: 197
     rx_128to255byte: 18
     rx_256to511byte: 5
     rx_512to1023byte: 0
     rx_1024to2047byte: 0
     rx_GTE2048byte: 0
     rx_octets: 26079
     IEEE_rx_drop: 0
     IEEE_rx_frame_ok: 0
     IEEE_rx_crc: 220
     IEEE_rx_align: 212
     IEEE_rx_macerr: 0
     IEEE_rx_fdxfc: 0
     IEEE_rx_octets_ok: 0

My i.MX6 is connect directly on an LAN9303 switch by the RMII bus. Here is my dts ethernet node:

#include "imx6q.dtsi"

...

&fec {
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_enet_axion>;
    phy-handle = <&ethphy0>;
    phy-mode = "rmii";
    phy-reset-gpios = <&gpio1 23 0>; /* GPIO1_23 */
    phy-reset-duration = <10>;
    status = "okay";

    mdio {
        #address-cells = <1>;
        #size-cells = <0>;

        ethphy0: ethernet-phy@0 {
            reg = <0>;
        };

        ethphy1: ethernet-phy@1 {
            reg = <1>;
        };

        ethphy2: ethernet-phy@2 {
            reg = <2>;
        };
   };

};

Someone have an idea of what is going on or what can I look ?

thanks

[igorpadykov]

Hi Jonathan

please try latest official nxp bsp described in 

http://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0-LINUX-DOCS&Parent_nodeId=133769948107170617... 

for community releases one can post on meta-fsl-arm mailing list
https://lists.yoctoproject.org/listinfo/meta-freescale

https://community.freescale.com/message/402940#402940

Best regards
igor
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