Difference between revisions of "DESK-MX6-L/Pheripherals/Ethernet"

Revision as of 15:51, 9 October 2020

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History
Version	Issue Date	Notes
1.0.0	Oct 2020	First DESK release

Peripheral Ethernet[edit | edit source]

The ethernet interface is made available through the i.MX6 fec interface which should be initialized on the device tree.

Device tree configuration[edit | edit source]

Here below an example of device tree configuration used on standard DAVE's kit for the AXEL Lite SOM:

From imx6qdl-axelcommon.dtsi :

&fec {
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_enet_axel>;
    phy-mode = "rgmii";
    phy-handle = <&ethphy>;
    status = "okay";

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

        ethphy: ethernet-phy@7 {
            compatible = "ethernet-phy-ieee802.3-c22";
            reg = <7>;
        };
    };
};

&iomuxc {
...
...
    enet {
        pinctrl_enet_axel: enetgrp-1 {
            fsl,pins = <
                MX6QDL_PAD_ENET_MDIO__ENET_MDIO       0x1b0b0
                MX6QDL_PAD_ENET_MDC__ENET_MDC         0x1b0b0
                MX6QDL_PAD_RGMII_TXC__RGMII_TXC       0x1b0b0
                MX6QDL_PAD_RGMII_TD0__RGMII_TD0       0x1b0b0
                MX6QDL_PAD_RGMII_TD1__RGMII_TD1       0x1b0b0
                MX6QDL_PAD_RGMII_TD2__RGMII_TD2       0x1b0b0
                MX6QDL_PAD_RGMII_TD3__RGMII_TD3       0x1b0b0
                MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b0b0
                MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK  0x1b0b0
                MX6QDL_PAD_RGMII_RXC__RGMII_RXC       0x1b0b0
                MX6QDL_PAD_RGMII_RD0__RGMII_RD0       0x1b0b0
                MX6QDL_PAD_RGMII_RD1__RGMII_RD1       0x1b0b0
                MX6QDL_PAD_RGMII_RD2__RGMII_RD2       0x1b0b0
                MX6QDL_PAD_RGMII_RD3__RGMII_RD3       0x1b0b0
                MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b0b0
                MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28     0xb0b1
                MX6QDL_PAD_SD4_DAT3__GPIO2_IO11        0xb0b1
                MX6QDL_PAD_SD4_DAT2__GPIO2_IO10        0xb0b1
            >;
        };
    };
...
...
};

Accessing the peripheral[edit | edit source]

AXEL LITE SOM provides the network interface mapped at eth0.

Linux messages at boot time[edit | edit source]

...
...
[    2.373438] fec 2188000.ethernet: 2188000.ethernet supply phy not found, using dummy regulator
[    2.393396] fec 2188000.ethernet eth0: registered PHC device 0
...
...
[    5.235075] Micrel KSZ9031 Gigabit PHY 2188000.ethernet-1:07: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=2188000.ethernet-1:07, irq=POLL)
[    5.249686] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

Cable connection:

...
...
[    7.364256] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[    7.383799] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    7.417007]      device=eth0, hwaddr=fa:2a:07:88:45:42, ipaddr=192.168.0.90, mask=255.255.255.0, gw=255.255.255.255

Check the interface with ifconfig[edit | edit source]

root@imx6qdlxelk:~# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr fa:2a:07:88:45:42
          inet addr:192.168.0.90  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::f82a:7ff:fe88:4542/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:126363 errors:0 dropped:0 overruns:0 frame:0
          TX packets:64259 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:103276957 (98.4 MiB)  TX bytes:19090409 (18.2 MiB)

root@imx6qdlxelk:~#

Test with iperf[edit | edit source]

root@imx6qdlxelk:~#  iperf3 -t 5 -c 192.168.0.125
Connecting to host 192.168.0.125, port 5201
[  5] local 192.168.0.90 port 45808 connected to 192.168.0.125 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  11.5 MBytes  96.4 Mbits/sec    0    156 KBytes
[  5]   1.00-2.00   sec  11.2 MBytes  93.8 Mbits/sec    0    191 KBytes
[  5]   2.00-3.00   sec  11.2 MBytes  93.8 Mbits/sec    0    212 KBytes
[  5]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec    0    212 KBytes
[  5]   4.00-5.00   sec  11.3 MBytes  94.9 Mbits/sec    0    242 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  56.4 MBytes  94.6 Mbits/sec    0             sender
[  5]   0.00-5.00   sec  55.7 MBytes  93.5 Mbits/sec                  receiver

iperf Done.
root@imx6qdlxelk:~#

HOME	SOMs	SBCs	ToloMEO Embedded Assistant	GET A QUOTE	ONLINE HELPDESK
	Roadmap		IoT Services			ML/AI services	Embedded Design Services

@@ Line 7: / Line 7: @@
 !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes
 |-
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|X.Y.Z
+|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|1.0.0
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Month Year
+|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Oct 2020
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBD
+|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|First DESK release
-|-
-|-
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|[TBD_link X.Y.Z]
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Month Year
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBD
-|-
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...
-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...
 |-
 |}
@@ Line 26: / Line 17: @@
 ==Peripheral Ethernet ==
-''TBD: sostituire tutti i dump con le informazioni sull'uso della periferica''
+The ethernet interface is made available through the i.MX6 '''fec''' interface which should be initialized on the device tree.
 === Device tree configuration ===
 Here below an example of device tree configuration used on standard DAVE's kit for the AXEL Lite SOM:
-From <code>''carrier.dts''</code>:
+From <code>imx6qdl-axelcommon.dtsi </code>:
 <pre>
-&can1 {
+&fec {
      pinctrl-names = "default";
-     pinctrl-0 = <&pinctrl_flexcan1_axel>;
+     pinctrl-0 = <&pinctrl_enet_axel>;
+    phy-mode = "rgmii";
+    phy-handle = <&ethphy>;
      status = "okay";
+    mdio {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        ethphy: ethernet-phy@7 {
+            compatible = "ethernet-phy-ieee802.3-c22";
+            reg = <7>;
+        };
+    };
 };
-</pre>
-From <code>''carrier-common.dtsi''</code>:
+&iomuxc {
+...
-<pre>
+...
-     can1 {
+     enet {
-         pinctrl_flexcan1_axel: flexcan1axelgrp-1 {
+         pinctrl_enet_axel: enetgrp-1 {
              fsl,pins = <
-                 MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x80000000
+                 MX6QDL_PAD_ENET_MDIO__ENET_MDIO       0x1b0b0
-                 MX6QDL_PAD_GPIO_8__FLEXCAN1_RX 0x80000000
+                 MX6QDL_PAD_ENET_MDC__ENET_MDC         0x1b0b0
+                MX6QDL_PAD_RGMII_TXC__RGMII_TXC       0x1b0b0
+                MX6QDL_PAD_RGMII_TD0__RGMII_TD0       0x1b0b0
+                MX6QDL_PAD_RGMII_TD1__RGMII_TD1       0x1b0b0
+                MX6QDL_PAD_RGMII_TD2__RGMII_TD2       0x1b0b0
+                MX6QDL_PAD_RGMII_TD3__RGMII_TD3       0x1b0b0
+                MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b0b0
+                MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK  0x1b0b0
+                MX6QDL_PAD_RGMII_RXC__RGMII_RXC       0x1b0b0
+                MX6QDL_PAD_RGMII_RD0__RGMII_RD0       0x1b0b0
+                MX6QDL_PAD_RGMII_RD1__RGMII_RD1       0x1b0b0
+                MX6QDL_PAD_RGMII_RD2__RGMII_RD2       0x1b0b0
+                MX6QDL_PAD_RGMII_RD3__RGMII_RD3       0x1b0b0
+                MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b0b0
+                MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28     0xb0b1
+                MX6QDL_PAD_SD4_DAT3__GPIO2_IO11        0xb0b1
+                MX6QDL_PAD_SD4_DAT2__GPIO2_IO10        0xb0b1
              >;
          };
      };
+...
+...
+};
 </pre>
 ===Accessing the peripheral===
+AXEL LITE SOM provides the network interface mapped at eth0.
 ====Linux messages at boot time====
@@ Line 60: / Line 83: @@
 ...
 ...
-[    1.807495] flexcan 2090000.flexcan: 2090000.flexcan supply xceiver not found, using dummy regulator
+[    2.373438] fec 2188000.ethernet: 2188000.ethernet supply phy not found, using dummy regulator
-[    1.817366] flexcan 2090000.flexcan: device registered (reg_base=c0a30000, irq=31)
+[    2.393396] fec 2188000.ethernet eth0: registered PHC device 0
 ...
 ...
-[    3.952659] can: controller area network core (rev 20170425 abi 9)
+[    5.235075] Micrel KSZ9031 Gigabit PHY 2188000.ethernet-1:07: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=2188000.ethernet-1:07, irq=POLL)
-[    3.963413] can: raw protocol (rev 20170425)
+[    5.249686] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
-[    3.967717] can: broadcast manager protocol (rev 20170425 t)
-[    3.973397] can: netlink gateway (rev 20170425) max_hops=1
 </pre>
-====Enable the interface and check status====
+Cable connection:
 <pre class="workstation-terminal">
-root@imx6qxelk:~# ip link set can0 type can bitrate 500000
+...
-root@imx6qxelk:~# ifconfig can0 up
+...
-root@imx6qxelk:~# ifconfig can0
+[    7.364256] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
-can0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
+[    7.383799] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
-          UP RUNNING NOARP  MTU:16  Metric:1
+[    7.417007]      device=eth0, hwaddr=fa:2a:07:88:45:42, ipaddr=192.168.0.90, mask=255.255.255.0, gw=255.255.255.255
-          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
+</pre>
-          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
-          collisions:0 txqueuelen:10
-          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
-          Interrupt:31
-root@imx6qxelk:~#
+==== Check the interface with ifconfig ====
+<pre class="workstation-terminal">
+root@imx6qdlxelk:~# ifconfig eth0
+eth0      Link encap:Ethernet  HWaddr fa:2a:07:88:45:42
+          inet addr:192.168.0.90  Bcast:192.168.0.255  Mask:255.255.255.0
+          inet6 addr: fe80::f82a:7ff:fe88:4542/64 Scope:Link
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:126363 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:64259 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:1000
+          RX bytes:103276957 (98.4 MiB)  TX bytes:19090409 (18.2 MiB)
+root@imx6qdlxelk:~#
 </pre>
-==== Usage with [https://github.com/linux-can/can-utils can-utils] ====
+==== Test with [https://iperf.fr/ iperf] ====
-''TBD: reference verso eventuali informazioni sul web''
+<pre class="workstation-terminal">
+root@imx6qdlxelk:~#  iperf3 -t 5 -c 192.168.0.125
+Connecting to host 192.168.0.125, port 5201
+[  5] local 192.168.0.90 port 45808 connected to 192.168.0.125 port 5201
+[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
+[  5]   0.00-1.00   sec  11.5 MBytes  96.4 Mbits/sec    0    156 KBytes
+[  5]   1.00-2.00   sec  11.2 MBytes  93.8 Mbits/sec    0    191 KBytes
+[  5]   2.00-3.00   sec  11.2 MBytes  93.8 Mbits/sec    0    212 KBytes
+[  5]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec    0    212 KBytes
+[  5]   4.00-5.00   sec  11.3 MBytes  94.9 Mbits/sec    0    242 KBytes
+- - - - - - - - - - - - - - - - - - - - - - - - -
+[ ID] Interval           Transfer     Bitrate         Retr
+[  5]   0.00-5.00   sec  56.4 MBytes  94.6 Mbits/sec    0             sender
+[  5]   0.00-5.00   sec  55.7 MBytes  93.5 Mbits/sec                  receiver
-<pre class="workstation-terminal">
+iperf Done.
-root@imx6qxelk:~# ip link set can0 type can bitrate 500000 triple-sampling on
+root@imx6qdlxelk:~#
-root@imx6qxelk:~# ifconfig can0 up
-root@imx6qxelk:~# cansend can0 128#1122334455667788
-root@imx6qxelk:~# candump can0
-  can0  128   [8]  11 22 33 44 55 66 77 88
-root@imx6qxelk:~#
 </pre>
-=== Additional information ===
-Each CAN port appears like a networking interface in the form <code>canX</code> where <b><i>X</i></b> is the port number.
-Information about programming the CAN socket interface is given in the kernel tree under ''Documentation/networking/can.txt''
 <section end=Body/>

Difference between revisions of "DESK-MX6-L/Pheripherals/Ethernet"

Revision as of 15:51, 9 October 2020

Contents

Peripheral Ethernet[edit | edit source]

Device tree configuration[edit | edit source]

Accessing the peripheral[edit | edit source]

Linux messages at boot time[edit | edit source]

Check the interface with ifconfig[edit | edit source]

Test with iperf[edit | edit source]

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