1 // SPDX-License-Identifier: GPL-2.0
2 /* Intel DWMAC platform driver
33 	struct intel_dwmac *dwmac = priv;  in kmb_eth_fix_mac_speed()  local
37 	rate = clk_get_rate(dwmac->tx_clk);  in kmb_eth_fix_mac_speed()
53 		dev_err(dwmac->dev, "Invalid speed\n");  in kmb_eth_fix_mac_speed()
57 	ret = clk_set_rate(dwmac->tx_clk, rate);  in kmb_eth_fix_mac_speed()
59 		dev_err(dwmac->dev, "Failed to configure tx clock rate\n");  in kmb_eth_fix_mac_speed()
70 	{ .compatible = "intel,keembay-dwmac", .data = &kmb_data },
80 	struct intel_dwmac *dwmac;  in intel_eth_plat_probe()  local
90 		dev_err(&pdev->dev, "dt configuration failed\n");  in intel_eth_plat_probe()
94 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);  in intel_eth_plat_probe()
95 	if (!dwmac) {  in intel_eth_plat_probe()
96 		ret = -ENOMEM;  in intel_eth_plat_probe()
100 	dwmac->dev = &pdev->dev;  in intel_eth_plat_probe()
101 	dwmac->tx_clk = NULL;  in intel_eth_plat_probe()
103 	match = of_match_device(intel_eth_plat_match, &pdev->dev);  in intel_eth_plat_probe()
104 	if (match && match->data) {  in intel_eth_plat_probe()
105 		dwmac->data = (const struct intel_dwmac_data *)match->data;  in intel_eth_plat_probe()
107 		if (dwmac->data->fix_mac_speed)  in intel_eth_plat_probe()
108 			plat_dat->fix_mac_speed = dwmac->data->fix_mac_speed;  in intel_eth_plat_probe()
111 		if (dwmac->data->tx_clk_en) {  in intel_eth_plat_probe()
112 			dwmac->tx_clk = devm_clk_get(&pdev->dev, "tx_clk");  in intel_eth_plat_probe()
113 			if (IS_ERR(dwmac->tx_clk)) {  in intel_eth_plat_probe()
114 				ret = PTR_ERR(dwmac->tx_clk);  in intel_eth_plat_probe()
118 			clk_prepare_enable(dwmac->tx_clk);  in intel_eth_plat_probe()
121 			rate = clk_get_rate(dwmac->tx_clk);  in intel_eth_plat_probe()
122 			if (dwmac->data->tx_clk_rate &&  in intel_eth_plat_probe()
123 			    rate != dwmac->data->tx_clk_rate) {  in intel_eth_plat_probe()
124 				rate = dwmac->data->tx_clk_rate;  in intel_eth_plat_probe()
125 				ret = clk_set_rate(dwmac->tx_clk, rate);  in intel_eth_plat_probe()
127 					dev_err(&pdev->dev,  in intel_eth_plat_probe()
135 		rate = clk_get_rate(plat_dat->clk_ptp_ref);  in intel_eth_plat_probe()
136 		if (dwmac->data->ptp_ref_clk_rate &&  in intel_eth_plat_probe()
137 		    rate != dwmac->data->ptp_ref_clk_rate) {  in intel_eth_plat_probe()
138 			rate = dwmac->data->ptp_ref_clk_rate;  in intel_eth_plat_probe()
139 			ret = clk_set_rate(plat_dat->clk_ptp_ref, rate);  in intel_eth_plat_probe()
141 				dev_err(&pdev->dev,  in intel_eth_plat_probe()
148 	plat_dat->bsp_priv = dwmac;  in intel_eth_plat_probe()
149 	plat_dat->eee_usecs_rate = plat_dat->clk_ptp_rate;  in intel_eth_plat_probe()
151 	if (plat_dat->eee_usecs_rate > 0) {  in intel_eth_plat_probe()
154 		tx_lpi_usec = (plat_dat->eee_usecs_rate / 1000000) - 1;  in intel_eth_plat_probe()
158 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);  in intel_eth_plat_probe()
160 		clk_disable_unprepare(dwmac->tx_clk);  in intel_eth_plat_probe()
174 	struct intel_dwmac *dwmac = get_stmmac_bsp_priv(&pdev->dev);  in intel_eth_plat_remove()  local
178 	clk_disable_unprepare(dwmac->tx_clk);  in intel_eth_plat_remove()
187 		.name		= "intel-eth-plat",
195 MODULE_DESCRIPTION("Intel DWMAC platform driver");