DESK-MX9-L/Peripherals/Ethernet

History
2024/01/30	DESK-MX9-L-5.0.0 release

Contents

Peripheral EthernetEdit

The ethernet interface is made available through the i.MX93 eqos interface which should be initialized on the device tree.

Device tree configurationEdit

AURA SOMEdit

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

From imx93-aura.dtsi :

&eqos {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_eqos>;
	phy-mode = "rgmii-id";
	phy-handle = <&ethphy1>;
	status = "okay";

	mdio {
		compatible = "snps,dwmac-mdio";
		#address-cells = <1>;
		#size-cells = <0>;
		clock-frequency = <5000000>;

		ethphy1: ethernet-phy@7 {
			compatible = "ethernet-phy-ieee802.3-c22";
			reg = <7>;
			eee-broken-1000t;
		};
	};
};
...
...

&iomuxc {
...
	pinctrl_eqos: eqosgrp {
		fsl,pins = <
			MX93_PAD_ENET1_MDC__ENET_QOS_MDC			0x57e
			MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO			0x57e
			MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0			0x57e
			MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1			0x57e
			MX93_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2			0x57e
			MX93_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3			0x57e
			MX93_PAD_ENET1_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK	0x5fe
			MX93_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL		0x57e
			MX93_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0			0x57e
			MX93_PAD_ENET1_TD1__ENET_QOS_RGMII_TD1			0x57e
			MX93_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2			0x57e
			MX93_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3			0x57e
			MX93_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK	0x5fe
			MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL		0x57e
		>;
	};
...
};
...

Accessing the peripheral in AURA SOMEdit

AURA SOM provides the network interface mapped as eth0.

Linux messages at boot timeEdit

• eth0

[    8.031281] imx-dwmac 428a0000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[    8.105959] imx-dwmac 428a0000.ethernet eth0: PHY [stmmac-1:07] driver [Microchip LAN8841 Gigabit PHY] (irq=POLL)
[    8.114909] imx-dwmac 428a0000.ethernet eth0: No Safety Features support found
[    8.114940] imx-dwmac 428a0000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[    8.115479] imx-dwmac 428a0000.ethernet eth0: registered PTP clock
[    8.144953] imx-dwmac 428a0000.ethernet eth0: FPE workqueue start
[    8.144975] imx-dwmac 428a0000.ethernet eth0: configuring for phy/rgmii-id link mode
[    8.145479] 8021q: adding VLAN 0 to HW filter on device eth0

Cable connection:

...
[   79.845148] imx-dwmac 428a0000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   79.853449] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
...

Check the interface with ifconfigEdit

root@desk-mx93:~# ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.89  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::140a:71ff:fe2d:ce0e  prefixlen 64  scopeid 0x20<link>
        ether 16:0a:71:2d:ce:0e  txqueuelen 1000  (Ethernet)
        RX packets 1224  bytes 91175 (89.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 120  bytes 20793 (20.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 101

Test with iperf3Edit

root@desk-mx93:~#  iperf3 -t 5 -c 192.168.0.168
Connecting to host 192.168.0.168, port 5201
[  5] local 192.168.0.89 port 42688 connected to 192.168.0.168 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec   109 MBytes   915 Mbits/sec    4    481 KBytes       
[  5]   1.00-2.00   sec   109 MBytes   912 Mbits/sec    0    549 KBytes       
[  5]   2.00-3.00   sec   110 MBytes   923 Mbits/sec    0    608 KBytes       
[  5]   3.00-4.00   sec   111 MBytes   933 Mbits/sec    0    643 KBytes       
[  5]   4.00-5.00   sec   110 MBytes   923 Mbits/sec    0    660 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec   549 MBytes   921 Mbits/sec    4             sender
[  5]   0.00-5.04   sec   546 MBytes   908 Mbits/sec 

iperf Done.
root@desk-mx8mp:~#

MAC AddressEdit

For the MAC Address programming, refers to the following wiki page

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