[meta-freescale] i.MX6D ethernet communication fail

[Jonathan Poulin]

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 at 0 {*
*            reg = <0>;*
*        };*


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



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

*};*





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

thanks
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