1 // SPDX-License-Identifier: GPL-2.0
2 /* Intel DWMAC platform driver
37 	{ .compatible = "intel,keembay-dwmac", .data = &kmb_data },
46 	struct intel_dwmac *dwmac;  in intel_eth_plat_probe()  local
56 		dev_err(&pdev->dev, "dt configuration failed\n");  in intel_eth_plat_probe()
60 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);  in intel_eth_plat_probe()
61 	if (!dwmac)  in intel_eth_plat_probe()
62 		return -ENOMEM;  in intel_eth_plat_probe()
64 	dwmac->dev = &pdev->dev;  in intel_eth_plat_probe()
65 	dwmac->tx_clk = NULL;  in intel_eth_plat_probe()
72 	dwmac->data = device_get_match_data(&pdev->dev);  in intel_eth_plat_probe()
75 	if (dwmac->data->tx_clk_en) {  in intel_eth_plat_probe()
76 		dwmac->tx_clk = devm_clk_get(&pdev->dev, "tx_clk");  in intel_eth_plat_probe()
77 		if (IS_ERR(dwmac->tx_clk))  in intel_eth_plat_probe()
78 			return PTR_ERR(dwmac->tx_clk);  in intel_eth_plat_probe()
80 		ret = clk_prepare_enable(dwmac->tx_clk);  in intel_eth_plat_probe()
82 			dev_err(&pdev->dev,  in intel_eth_plat_probe()
88 		rate = clk_get_rate(dwmac->tx_clk);  in intel_eth_plat_probe()
89 		if (dwmac->data->tx_clk_rate &&  in intel_eth_plat_probe()
90 		    rate != dwmac->data->tx_clk_rate) {  in intel_eth_plat_probe()
91 			rate = dwmac->data->tx_clk_rate;  in intel_eth_plat_probe()
92 			ret = clk_set_rate(dwmac->tx_clk, rate);  in intel_eth_plat_probe()
94 				dev_err(&pdev->dev,  in intel_eth_plat_probe()
101 		rate = clk_get_rate(plat_dat->clk_ptp_ref);  in intel_eth_plat_probe()
102 		if (dwmac->data->ptp_ref_clk_rate &&  in intel_eth_plat_probe()
103 		    rate != dwmac->data->ptp_ref_clk_rate) {  in intel_eth_plat_probe()
104 			rate = dwmac->data->ptp_ref_clk_rate;  in intel_eth_plat_probe()
105 			ret = clk_set_rate(plat_dat->clk_ptp_ref, rate);  in intel_eth_plat_probe()
107 				dev_err(&pdev->dev,  in intel_eth_plat_probe()
114 	plat_dat->clk_tx_i = dwmac->tx_clk;  in intel_eth_plat_probe()
115 	plat_dat->set_clk_tx_rate = stmmac_set_clk_tx_rate;  in intel_eth_plat_probe()
117 	plat_dat->bsp_priv = dwmac;  in intel_eth_plat_probe()
118 	plat_dat->eee_usecs_rate = plat_dat->clk_ptp_rate;  in intel_eth_plat_probe()
120 	if (plat_dat->eee_usecs_rate > 0) {  in intel_eth_plat_probe()
123 		tx_lpi_usec = (plat_dat->eee_usecs_rate / 1000000) - 1;  in intel_eth_plat_probe()
127 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);  in intel_eth_plat_probe()
134 	if (dwmac->data->tx_clk_en)  in intel_eth_plat_probe()
135 		clk_disable_unprepare(dwmac->tx_clk);  in intel_eth_plat_probe()
141 	struct intel_dwmac *dwmac = get_stmmac_bsp_priv(&pdev->dev);  in intel_eth_plat_remove()  local
144 	if (dwmac->data->tx_clk_en)  in intel_eth_plat_remove()
145 		clk_disable_unprepare(dwmac->tx_clk);  in intel_eth_plat_remove()
152 		.name		= "intel-eth-plat",
160 MODULE_DESCRIPTION("Intel DWMAC platform driver");