1 // SPDX-License-Identifier: GPL-2.0+
3  * StarFive DWMAC platform driver
36 	struct starfive_dwmac *dwmac = priv;  in starfive_dwmac_fix_mac_speed()  local
42 		dev_err(dwmac->dev, "invalid speed %u\n", speed);  in starfive_dwmac_fix_mac_speed()
46 	err = clk_set_rate(dwmac->clk_tx, rate);  in starfive_dwmac_fix_mac_speed()
48 		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);  in starfive_dwmac_fix_mac_speed()
53 	struct starfive_dwmac *dwmac = plat_dat->bsp_priv;  in starfive_dwmac_set_mode()  local
59 	switch (plat_dat->mac_interface) {  in starfive_dwmac_set_mode()
72 		dev_err(dwmac->dev, "unsupported interface %d\n",  in starfive_dwmac_set_mode()
73 			plat_dat->mac_interface);  in starfive_dwmac_set_mode()
74 		return -EINVAL;  in starfive_dwmac_set_mode()
77 	regmap = syscon_regmap_lookup_by_phandle_args(dwmac->dev->of_node,  in starfive_dwmac_set_mode()
81 		return dev_err_probe(dwmac->dev, PTR_ERR(regmap), "getting the regmap failed\n");  in starfive_dwmac_set_mode()
88 		return dev_err_probe(dwmac->dev, err, "error setting phy mode\n");  in starfive_dwmac_set_mode()
90 	if (dwmac->data) {  in starfive_dwmac_set_mode()
92 				   dwmac->data->gtxclk_dlychain);  in starfive_dwmac_set_mode()
94 			return dev_err_probe(dwmac->dev, err,  in starfive_dwmac_set_mode()
105 	struct starfive_dwmac *dwmac;  in starfive_dwmac_probe()  local
111 		return dev_err_probe(&pdev->dev, err,  in starfive_dwmac_probe()
116 		return dev_err_probe(&pdev->dev, PTR_ERR(plat_dat),  in starfive_dwmac_probe()
119 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);  in starfive_dwmac_probe()
120 	if (!dwmac)  in starfive_dwmac_probe()
121 		return -ENOMEM;  in starfive_dwmac_probe()
123 	dwmac->data = device_get_match_data(&pdev->dev);  in starfive_dwmac_probe()
125 	dwmac->clk_tx = devm_clk_get_enabled(&pdev->dev, "tx");  in starfive_dwmac_probe()
126 	if (IS_ERR(dwmac->clk_tx))  in starfive_dwmac_probe()
127 		return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),  in starfive_dwmac_probe()
130 	clk_gtx = devm_clk_get_enabled(&pdev->dev, "gtx");  in starfive_dwmac_probe()
132 		return dev_err_probe(&pdev->dev, PTR_ERR(clk_gtx),  in starfive_dwmac_probe()
141 	if (!device_property_read_bool(&pdev->dev, "starfive,tx-use-rgmii-clk"))  in starfive_dwmac_probe()
142 		plat_dat->fix_mac_speed = starfive_dwmac_fix_mac_speed;  in starfive_dwmac_probe()
144 	dwmac->dev = &pdev->dev;  in starfive_dwmac_probe()
145 	plat_dat->bsp_priv = dwmac;  in starfive_dwmac_probe()
146 	plat_dat->dma_cfg->dche = true;  in starfive_dwmac_probe()
152 	return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);  in starfive_dwmac_probe()
156 	.gtxclk_dlychain = 4,
160 	{ .compatible = "starfive,jh7100-dwmac", .data = &jh7100_data },
161 	{ .compatible = "starfive,jh7110-dwmac" },
170 		.name = "starfive-dwmac",
178 MODULE_DESCRIPTION("StarFive DWMAC platform driver");