( input clk_mac, input clk_phy, input rst_n, input [2:0] mode_straps, output eth_mdc, inout eth_mdio, output eth_rstn, inout eth_crsdv, inout eth_rxerr, inout [1:0] eth_rxd, output eth_txen, output [1:0] eth_txd, output eth_clkin, inout eth_intn, output rx_vld, output [7:0] rx_dat, output rx_sof, output rx_eof, output rx_err, output [7:0] rx_axis_mac_tdata, output rx_axis_mac_tvalid, output rx_axis_mac_tlast, output rx_axis_mac_tuser, input tx_vld, input [7:0] tx_dat, input tx_sof, input tx_eof, output tx_ack, input [7:0] tx_axis_mac_tdata, input tx_axis_mac_tvalid, input tx_axis_mac_tlast, output tx_axis_mac_tready, input reg_vld, input [4:0] reg_addr, input reg_write, input [15:0] reg_wval, output [15:0] reg_rval, output reg_ack, output speed_100, output full_duplex, output link_up, output remote_fault, output auto_neg_done

个人写的LINUX平台下，命令行访问ethernet phy 的寄存器工具，驱动和硬件调试非常实用。具体使用如下： 打印寄存器：./mdio eth0 dump 修改寄存器：./mdio eth0 0x00 0x1200，修改0x00寄存器的值为0x1200

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