No ipv4 with SFP and DP83869

Technical Support
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1

I have a custom carrier board which i have a DP83869 PHY connected to ETH2. I am unable to obtain an IPV4 address. nor am i able to ping when i set a static ipv4 address.

See attached Device tree for ETH2:

/* Verdin ETH_2_RGMII */
&fec {
	status="okay";
	phy-handle = <&ethphy1>;
	phy-mode = "rgmii";
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&pinctrl_fec>;
	pinctrl-1 = <&pinctrl_fec_sleep>;

	eth2_mdio: mdio {
		#address-cells = <1>;
		#size-cells = <0>;
		ethphy1: ethernet-phy@0 {
			compatible = "ethernet-phy-ieee802.3-c22","ethernet-phy-id2000.a0f1";
			device_type = "ethernet-phy";
			// interrupts not being processed correctly. using polling mode for now
			// interrupt-parent = <&gpio4>;
			// interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
			micrel,led-mode = <0>;
			reg = <0>;
			ti,clk-output-sel = <DP83869_CLK_O_SEL_REF_CLK>;
			ti,op-mode = <DP83869_RGMII_1000_BASE>;
		};
	};
};

ethtool output:

$ sudo ethtool eth0
Settings for eth0:
	Supported ports: [ TP	 MII	 FIBRE ]
	Supported link modes:   100baseT/Half 100baseT/Full
	                        1000baseT/Full
	                        1000baseX/Full
	Supported pause frame use: Symmetric
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  100baseT/Half 100baseT/Full
	                        1000baseT/Full
	                        1000baseX/Full
	Advertised pause frame use: Symmetric
	Advertised auto-negotiation: Yes
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  1000baseX/Full
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: Yes
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: on
	Port: FIBRE
	PHYAD: 0
	Transceiver: external
	Supports Wake-on: g
	Wake-on: d
	Link detected: yes

am i missing something to make IPV4 work with the SFP module.

2

Hi, I’m the Toradex AI Assistant.

I might make mistakes or occasionally get you wrong. Our support team will step in if needed.

I’d be glad to help with your DP83869 PHY configuration issue! Could you let me know which hardware platform and OS version you are using?

To provide the most accurate guidance, please run the tdx-info command on your device and share the output. You can find more information about this command at tdx-info.

This will help me understand:

  • Which SoM you’re using (Verdin i.MX8M Plus, Verdin AM62, Colibri i.MX8X, etc.)
  • Your carrier board configuration
  • The OS version (Torizon OS 6, Torizon OS 7.2.0, BSP 6, BSP 7, etc.)

With this information, I can provide specific guidance for your device tree configuration and troubleshoot the IPv4 connectivity issue with your DP83869 PHY.

Best regards, Toradex AI Assistant.

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