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
39 		dev_err(dwmac->dev, "Invalid speed\n");  in kmb_eth_fix_mac_speed()
43 	ret = clk_set_rate(dwmac->tx_clk, rate);  in kmb_eth_fix_mac_speed()
45 		dev_err(dwmac->dev, "Failed to configure tx clock rate\n");  in kmb_eth_fix_mac_speed()
56 	{ .compatible = "intel,keembay-dwmac", .data = &kmb_data },
65 	struct intel_dwmac *dwmac;  in intel_eth_plat_probe()  local
75 		dev_err(&pdev->dev, "dt configuration failed\n");  in intel_eth_plat_probe()
79 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);  in intel_eth_plat_probe()
80 	if (!dwmac)  in intel_eth_plat_probe()
81 		return -ENOMEM;  in intel_eth_plat_probe()
83 	dwmac->dev = &pdev->dev;  in intel_eth_plat_probe()
84 	dwmac->tx_clk = NULL;  in intel_eth_plat_probe()
91 	dwmac->data = device_get_match_data(&pdev->dev);  in intel_eth_plat_probe()
92 	if (dwmac->data->fix_mac_speed)  in intel_eth_plat_probe()
93 		plat_dat->fix_mac_speed = dwmac->data->fix_mac_speed;  in intel_eth_plat_probe()
96 	if (dwmac->data->tx_clk_en) {  in intel_eth_plat_probe()
97 		dwmac->tx_clk = devm_clk_get(&pdev->dev, "tx_clk");  in intel_eth_plat_probe()
98 		if (IS_ERR(dwmac->tx_clk))  in intel_eth_plat_probe()
99 			return PTR_ERR(dwmac->tx_clk);  in intel_eth_plat_probe()
101 		ret = clk_prepare_enable(dwmac->tx_clk);  in intel_eth_plat_probe()
103 			dev_err(&pdev->dev,  in intel_eth_plat_probe()
109 		rate = clk_get_rate(dwmac->tx_clk);  in intel_eth_plat_probe()
110 		if (dwmac->data->tx_clk_rate &&  in intel_eth_plat_probe()
111 		    rate != dwmac->data->tx_clk_rate) {  in intel_eth_plat_probe()
112 			rate = dwmac->data->tx_clk_rate;  in intel_eth_plat_probe()
113 			ret = clk_set_rate(dwmac->tx_clk, rate);  in intel_eth_plat_probe()
115 				dev_err(&pdev->dev,  in intel_eth_plat_probe()
122 		rate = clk_get_rate(plat_dat->clk_ptp_ref);  in intel_eth_plat_probe()
123 		if (dwmac->data->ptp_ref_clk_rate &&  in intel_eth_plat_probe()
124 		    rate != dwmac->data->ptp_ref_clk_rate) {  in intel_eth_plat_probe()
125 			rate = dwmac->data->ptp_ref_clk_rate;  in intel_eth_plat_probe()
126 			ret = clk_set_rate(plat_dat->clk_ptp_ref, rate);  in intel_eth_plat_probe()
128 				dev_err(&pdev->dev,  in intel_eth_plat_probe()
135 	plat_dat->bsp_priv = dwmac;  in intel_eth_plat_probe()
136 	plat_dat->eee_usecs_rate = plat_dat->clk_ptp_rate;  in intel_eth_plat_probe()
138 	if (plat_dat->eee_usecs_rate > 0) {  in intel_eth_plat_probe()
141 		tx_lpi_usec = (plat_dat->eee_usecs_rate / 1000000) - 1;  in intel_eth_plat_probe()
145 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);  in intel_eth_plat_probe()
152 	if (dwmac->data->tx_clk_en)  in intel_eth_plat_probe()
153 		clk_disable_unprepare(dwmac->tx_clk);  in intel_eth_plat_probe()
159 	struct intel_dwmac *dwmac = get_stmmac_bsp_priv(&pdev->dev);  in intel_eth_plat_remove()  local
162 	if (dwmac->data->tx_clk_en)  in intel_eth_plat_remove()
163 		clk_disable_unprepare(dwmac->tx_clk);  in intel_eth_plat_remove()
170 		.name		= "intel-eth-plat",
178 MODULE_DESCRIPTION("Intel DWMAC platform driver");