I’m trying to use KSZ9896 as PHY on Jetson AGX Xavier custom board.KSZ9896 connected over RGMII interface on port 6 and I2C bus.I have modified dtsi and ported driver,but it didn't work. Please help to make ksz9896 work properly on Jetson AGX Xavier.Thanks a lot. My dtsi is as follows, / { ether_qos0: ether_qos@2490000 { /* PTP_ref clock speed in MHz */ nvidia,ptp_ref_clock_speed = <312500000>; /* rxq_enable_ctrl = * 0x0 = Not enabled, 0x1 = Enabled for AV * 0x2 = Enabled for Legacy, 0x3 = Reserved */ nvidia,rxq_enable_ctrl = <2 2 2 2>; nvidia,queue_prio = <0 1 2 3>; nvidia,use_tagged_ptp; nvidia,ptp_dma_ch = <3>; nvidia,chan_napi_quota = <64 64 64 64>; nvidia,pause_frames = <0>; /*0=enable, 1=disable */ nvidia,phy-reset-gpio = <&tegra_main_gpio TEGRA194_MAIN_GPIO(G, 5) 0>; nvidia,phy-max-frame-size = <16>; /* size in kbytes */ nvidia,eth_iso_enable = <1>; /*0=enable, 1=disable */ phy-mode = "rgmii-id"; phy-handle = <&switch0port5>; mdytest = "madayi210914"; }; i2c@3160000 { phy0: ksz9896@5f { compatible = "microchip,ksz9896"; reg = <0x5f>; phy-mode = "rgmii-id"; interrupt-parent = <&tegra_main_gpio>; interrupts = ; status = "okay"; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; label = "lan1"; }; port@1 { reg = <1>; label = "lan2"; }; port@2 { reg = <2>; label = "lan3"; }; port@3 { reg = <3>; label = "lan4"; }; port@4 { reg = <4>; label = "lan5"; }; switch0port5: port@5 { reg = <5>; label = "cpu"; ethernet = <ðer_qos0>; phy-mode = "rgmii-id"; fixed-link { speed = <1000>; full-duplex; }; }; }; }; }; thermal-zones { CPU-therm { trips { MAKE_EQOS_TRIP(m40, -40000, 5000); MAKE_EQOS_TRIP(m5, -5000, 5000); MAKE_EQOS_TRIP(p30, 30000, 5000); MAKE_EQOS_TRIP(p65, 65000, 5000); MAKE_EQOS_TRIP(p100, 100000, 5000); }; cooling-maps { MAP_EQOS(m40, 1); MAP_EQOS(m5, 2); MAP_EQOS(p30, 3); MAP_EQOS(p65, 4); MAP_EQOS(p100, 5); }; }; }; };[dmesg20200915.log|attachment](upload://ootNbGoHc7ydjvxRzRWnRIaZGD1.log) (79.0 KB)