ethtool not seeing my PHY

Hi,

I'm working on bringing up a SOM. I can boot it into Linux (Yocto build) and I have network access via a Realtex USB -> Ethernet dongle. The board that the SOM sits on, has two PHY chips of type VSC8531 and i patch the device tree with the following patch: [dts-patch]

+&eth0 {

• phy0: ethernet-phy@7 {
• compatible = "ethernet-phy-ieee802.3-c45";
• reg = <7>;
• vsc8531,vddmac = <1800>;
• vsc8531,edge-slowdown = <0>;
• vsc8531,led-0-mode = <VSC8531_LINK_1000_ACTIVITY>;
• vsc8531,led-1-mode = <VSC8531_LINK_100_ACTIVITY>;
• };

+};
+
+&eth1 {

• phy1: ethernet-phy@7 {
• compatible = "ethernet-phy-ieee802.3-c45";
• reg = <7>;
• vsc8531,vddmac = <1800>;
• vsc8531,edge-slowdown = <0>;
• vsc8531,led-0-mode = <VSC8531_LINK_1000_ACTIVITY>;
• vsc8531,led-1-mode = <VSC8531_LINK_100_ACTIVITY>;
• };

+}; [/dts-patch] When I boot the system, devices eth0 & eth1 appear like: [ip link]
4: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether 7a:fb:90:5e:ff:90 brd ff:ff:ff:ff:ff:ff
5: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether 26:4e:be:df:c3:96 brd ff:ff:ff:ff:ff:ff /ip link] but ethtool says for eth0 & eth1 the following: # ethtool eth0 Settings for eth0: Cannot get device settings: No such device Supports Wake-on: g Wake-on: d Current message level: 0x000000cc (204) link timer rx_err tx_err Link detected: no it appears like a MAC has been assigned but when I plug-in a network cable, the link won't come up. I have tried the following (after the RJ-45 was plugged-in): # ifconfig eth0 up [ 1204.926217] ravb 11c20000.ethernet eth0: failed to connect PHY ifconfig: SIOCSIFFLAGS: No such file or directory # ifconfig eth1 up [ 1208.334088] ravb 11c30000.ethernet eth1: failed to connect PHY ifconfig: SIOCSIFFLAGS: No such file or directory

# networkctl status just says: "State: no-carrier"

kernel: I have added to the config: CONFIG_MICROSEMI_PHY=y before I compiled the kernel