Ethernet not working on petalinux [Arty 35T board]

[Fabian Pichardo]

I included this description in the dts:

 

&axi_ethernetlite_0{

 local-mac-address = [00 0a 35 00 01 22];

 compatible = "xlnx,xps-ethernetlite-1.00.a";

 device_type = "network";

 phy-handle = <&phy0>;

 xlnx,has-mdio = <0x1>;

 interrupt-parent = <&microblaze_0_axi_intc>;

 xlnx,duplex = <0x1>;

 xlnx,include-internal-loopback = <0x1>;

 xlnx,rx-ping-pong = <0x1>;

 xlnx,tx-ping-pong = <0x1>;

 xlnx,use-internal = <0x0>;

 mdio {

   #address-cells = <1>;

   #size-cells = <0>;

   phy0: phy@1 {

     device_type = "ethernet-phy";

     reg = <1>;

   };

 };

};

 

The petalinux build it is ok as well as the flash to the board (running as INITRD)

 

 

However, i am not able to ping from my host PC (Ubuntu 22). I only get:

mypc@xxx:~$ ping 192.168.0.10

PING 192.168.0.10 (192.168.0.10) 56(84) bytes of data.

From 192.168.0.103 icmp_seq=1 Destination Host Unreachable

From 192.168.0.103 icmp_seq=2 Destination Host Unreachable

From 192.168.0.103 icmp_seq=3 Destination Host Unreachable

From 192.168.0.103 icmp_seq=4 Destination Host Unreachable

From 192.168.0.103 icmp_seq=5 Destination Host Unreachable

From 192.168.0.103 icmp_seq=6 Destination Host Unreachable

 

On the other hand, if i ping from arty board to host PC i get:

artyA7_peta:~$ ping 192.168.0.11

PING 192.168.0.11 (192.168.0.11): 56 data bytes

and have no response at all.

Using wireshark it seems like this:

 

 

Running ip neigh in the host PC I get:

mypc@xxx:~$ ip neigh

192.168.0.10 dev eno1 lladdr 00:0a:35:00:01:22 STALE

192.168.0.1 dev wlo1 lladdr 5c:a6:e6:ea:7f:01 REACHABLE

169.254.169.254 dev wlo1 FAILED

192.168.0.10 dev wlo1 FAILED

 

So my question would be what is left to do to have it running?

 

Thanks in advance

[Fabian Pichardo]

[SOLVED]: Clock Frequency for Ethernet was not exact. Was set as 25.0234 instead of just 25.00 MHz.

[Ionel]

1. Please post output for ip a on both arty and host.
2. Are you running a dhcp client on Arty or a dhcp server?
3. Are you running ubuntu22 in VM. If yes with NAT or bridge ?
4. Post device tree node for axi_ethernetlite_0 found in <petalinux_project>components/plnx_workspace/device-tree/device-tree/pl.dtsi

 

This may also help.

https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841972/Linux+Emaclite+Driver

 

[Fabian Pichardo]

Sure

1.

Arty

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0a:35:00:01:22 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.10/24 scope global eth0
       valid_lft forever preferred_lft forever

Host

2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether c8:5a:cf:be:20:a5 brd ff:ff:ff:ff:ff:ff
    altname enp2s0
    inet 192.168.0.14/24 brd 192.168.0.255 scope global noprefixroute eno1
       valid_lft forever preferred_lft forever
    inet6 fe80::550f:33bd:112c:b6c9/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

2. No, I am using static IPs

3. No, Ubuntu 22 on Host PC

4.

        axi_ethernetlite_0: ethernet@40e00000 {
            compatible = "xlnx,axi-ethernetlite-3.0", "xlnx,xps-ethernetlite-1.00.a";
            device_type = "network";
            interrupt-names = "ip2intc_irpt";
            interrupt-parent = <&microblaze_0_axi_intc>;
            interrupts = <2 0>;
            reg = <0x40e00000 0x10000>;
            xlnx,duplex = <0x1>;
            xlnx,include-global-buffers = <0x1>;
            xlnx,include-internal-loopback = <0x1>;
            xlnx,include-mdio = <0x1>;
            xlnx,rx-ping-pong = <0x1>;
            xlnx,s-axi-id-width = <0x1>;
            xlnx,select-xpm = <0x1>;
            xlnx,tx-ping-pong = <0x1>;
            xlnx,use-internal = <0x0>;
            axi_ethernetlite_0_mdio: mdio {
                #address-cells = <1>;
                #size-cells = <0>;
            };
        };