On 2024/9/5 01:25, Andrew Lunn wrote: >> +&gmac1 { [...] > This has been discussed a few times. You should be using phy-mode > rgmii-id. After I changed phy-mode to rgmii-id, it seemed to work, but it didn't transmit any data. Maybe I made a mistake or should I continue to use phy-mode rgmii? > arch/arm/boot/dts/rockchip/rk3288-phycore-som.dtsi is i think also a > YT8521SC. According to commit message and some pictures, rk3288-phycore-som is using TI DP83867 PHY? Best regards, Junhao