fec_enet_clk_enable
ret = fec_enet_clk_enable(ndev, true);
fec_enet_clk_enable(ndev, false);
fec_enet_clk_enable(ndev, false);
ret = fec_enet_clk_enable(ndev, true);
fec_enet_clk_enable(ndev, false);
fec_enet_clk_enable(ndev, false);
fec_enet_clk_enable(ndev, false);
ret = fec_enet_clk_enable(ndev, true);