Marvell 88EE1111 PHY tranciever MDIO reg configuration

This is the top level module

module tse_tutorial(

// Clock

input CLOCK_50,

// KEY

input [0: 0] KEY,

// Ethernet 0

output ENET0_MDC,

inout ENET0_MDIO,

output ENET0_RESET_N,

// Ethernet 1

output ENET1_GTX_CLK,

output ENET1_MDC,

inout ENET1_MDIO,

output ENET1_RESET_N,

input ENET1_RX_CLK,

input [3: 0] ENET1_RX_DATA,

input ENET1_RX_DV,

output [3: 0] ENET1_TX_DATA,

output ENET1_TX_EN

);

wire sys_clk, clk_125, clk_25, clk_2p5, tx_clk;

wire core_reset_n;

wire mdc, mdio_in, mdio_oen, mdio_out;

wire eth_mode, ena_10;

assign mdio_in = ENET1_MDIO;

assign ENET0_MDC = mdc;

assign ENET1_MDC = mdc;

assign ENET0_MDIO = mdio_oen ? 1'bz : mdio_out;

assign ENET1_MDIO = mdio_oen ? 1'bz : mdio_out;

assign ENET0_RESET_N = core_reset_n;

assign ENET1_RESET_N = core_reset_n;

my_pll pll_inst(

.areset (~KEY[0]),

.inclk0 (CLOCK_50),

.c0 (sys_clk),

.c1 (clk_125),

.c2 (clk_25),

.c3 (clk_2p5),

.locked (core_reset_n)

);

assign tx_clk = eth_mode ? clk_125 : // GbE Mode = 125MHz clock

ena_10 ? clk_2p5 : // 10Mb Mode = 2.5MHz clock

clk_25; // 100Mb Mode = 25 MHz clock

my_ddio_out ddio_out_inst(

.datain_h(1'b1),

.datain_l(1'b0),

.outclock(tx_clk),

.dataout(ENET1_GTX_CLK)

);

nios_system system_inst (

.clk_clk (sys_clk), // clk.clk

.reset_reset_n (core_reset_n), // reset.reset_n

.tse_pcs_mac_tx_clock_connection_clk (tx_clk), // eth_tse_0_pcs_mac_tx_clock_connection.clk

.tse_pcs_mac_rx_clock_connection_clk (ENET1_RX_CLK), // eth_tse_0_pcs_mac_rx_clock_connection.clk

.tse_mac_mdio_connection_mdc (mdc), // tse_mac_mdio_connection.mdc

.tse_mac_mdio_connection_mdio_in (mdio_in), // .mdio_in

.tse_mac_mdio_connection_mdio_out (mdio_out), // .mdio_out

.tse_mac_mdio_connection_mdio_oen (mdio_oen), // .mdio_oen

.tse_mac_rgmii_connection_rgmii_in (ENET1_RX_DATA), // tse_mac_rgmii_connection.rgmii_in

.tse_mac_rgmii_connection_rgmii_out (ENET1_TX_DATA), // .rgmii_out

.tse_mac_rgmii_connection_rx_control (ENET1_RX_DV), // .rx_control

.tse_mac_rgmii_connection_tx_control (ENET1_TX_EN), // .tx_control

.tse_mac_status_connection_eth_mode (eth_mode), // .eth_mode

.tse_mac_status_connection_ena_10 (ena_10), // .ena_10

);

endmodule