I re-compiled the Ubuntu 6.8 kernel with the Mediatek net module enabled. However I ran into problems with the MDIO port which was preventing the mt7530-mdio driver from setting up the MT7531 switch chip on the board.
I was seeing errors like: [ 17.353755] mt7530-mdio mdio-bus:1f: failed to read mt7530 register [ 18.360696] mtk_soc_eth 15100000.ethernet: mdio: MDIO timeout [ 18.367009] mt7530-mdio mdio-bus:1f: failed to read mt7530 register [ 18.374606] mt7530-mdio mdio-bus:1f: reset timeout [ 18.380775] mt7530-mdio: probe of mdio-bus:1f failed with error -110 From the information in https://forum.banana-pi.org/t/sfp-oem- sfp-2-5g-t-kernel-phy/15872/116 there appears to be an issue with some clocks that get disabled by the kernel. Reported work arounds are to compile mtk-eth as built-in driver, or to stop the kernel from disabling clocks via the kernel parameter "clk_ignore_unused". I used the kernel parameter work around and the mt7530 driver now loads: [ 14.969089] mt7530-mdio mdio-bus:1f: configuring for fixed/2500base-x link mode [ 14.972329] mt7530-mdio mdio-bus:1f: Link is Up - 2.5Gbps/Full - flow control rx/tx I am not sure if this clock bug has been fixed in a more recent kernel release. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069001 Title: Missing Mediatek Ethernet drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-6.5/+bug/2069001/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
