diff --git a/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf b/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf
index 4f17ac2..8677362 100644
--- a/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf
+++ b/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf
@@ -31,6 +31,10 @@ NET "vga_clk" TNM_NET = "vga_clk";
 TIMESPEC "TS_vga_clk" = PERIOD "vga_clk" 8.0 ns HIGH 50 %;
 TIMESPEC "TS_unrelate_VGA" = FROM sys_clk TO vga_clk TIG;
 
+NET "gmii_clk" TNM_NET = "gmii_clk";
+TIMESPEC "TS_gmii_clk" = PERIOD "gmii_clk" 8.0 ns HIGH 50 %;
+TIMESPEC "TS_unrelate_GMII" = FROM sys_clk TO gmii_clk TIG;
+
 NET "sys_clk_in" LOC = "AE14";
 NET sys_clk_in IOSTANDARD = LVCMOS33;
 NET "sys_rst_n_in" LOC = "D6";
diff --git a/projects/mips_sys/src/mips_sys.vhd b/projects/mips_sys/src/mips_sys.vhd
index 6fd4926..13ed236 100644
--- a/projects/mips_sys/src/mips_sys.vhd
+++ b/projects/mips_sys/src/mips_sys.vhd
@@ -367,6 +367,7 @@ ARCHITECTURE behavior OF mips_sys IS
 	signal ps2_1_data_rx		: std_logic;
 	signal ps2_1_clk_tx			: std_logic;
 	signal ps2_1_data_tx		: std_logic;
+	signal gmii_clk				: std_logic;
 
 	-- Arbiter
 	constant ARB_MAX_MASTER		: natural := 2;
@@ -492,6 +493,7 @@ ARCHITECTURE behavior OF mips_sys IS
 	signal mem_area : mem_area_t;
 
 	attribute KEEP : string;
+	attribute KEEP of gmii_clk		: signal is "TRUE";
 	attribute KEEP of vga_clk		: signal is "TRUE";
 	attribute KEEP of CLK_O			: signal is "TRUE";
 	attribute KEEP of RST_O			: signal is "TRUE";
@@ -542,7 +544,8 @@ BEGIN
 	
 	sys_vga_clk				<= vga_clk;
 	vga_ce					<= not vga_rst;
-	
+	sys_phy_gtx_clk				<= gmii_clk;
+
 	---------------------------------------------------------------
 	-- Arbiter
 	MRDY_O		<= MRDY_O_cpu when arb_gnt(0) = '1' else MRDY_O_vga when arb_gnt(1) = '1' else '0';
@@ -925,6 +928,21 @@ inst_clockgen_vga : entity work.clockgen
 		clk_out				=> vga_clk
 	);
 
+inst_clockgen_gmii : entity work.clockgen
+	GENERIC MAP
+	(
+		clk_in_freq		=> sys_freq_in,
+		clk_out_freq		=> 125.0
+	)
+	PORT MAP 
+	(
+		-- Clocks and Reset
+		rst_in				=> rst_in,
+		clk_in				=> sys_clk_in,
+		rst_out				=> open,
+		clk_out				=> gmii_clk
+	);
+
 inst_sdram_ctrl_wb64 : entity work.ctrl_ddr_wb64
 	GENERIC MAP
 	(
@@ -1149,7 +1167,7 @@ inst_emac_top_jb : entity work.emac_top_jb
 		mii_tx_en	=> sys_phy_tx_en,
 		mii_tx_er	=> sys_phy_tx_er,
 		mii_tx		=> sys_phy_tx,
-		mii_gtx_clk	=> sys_phy_gtx_clk,
+		mii_gtx_clk	=> gmii_clk,
 		mii_crs		=> sys_phy_crs,
 		mii_col		=> sys_phy_col