1 // SPDX-License-Identifier: GPL-2.0
24 #define ETHER_CLK_SEL_RMII_CLK_RST BIT(3)
58 	struct visconti_eth *dwmac = bsp_priv;  in visconti_eth_set_clk_tx_rate()  local
76 			return -EINVAL;  in visconti_eth_set_clk_tx_rate()
80 		val = readl(dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
84 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
86 		/* Set Clock-Mux, Start clock, Set TX_O direction */  in visconti_eth_set_clk_tx_rate()
88 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
91 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
94 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
106 			return -EINVAL;  in visconti_eth_set_clk_tx_rate()
110 		val = readl(dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
114 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
116 		/* Set Clock-Mux, Start clock, Set TX_O direction */  in visconti_eth_set_clk_tx_rate()
121 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
124 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
127 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
130 		val = readl(dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
134 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
136 		/* Set Clock-Mux, Start clock, Set TX_O direction */  in visconti_eth_set_clk_tx_rate()
140 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
143 		writel(val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_set_clk_tx_rate()
151 	struct visconti_eth *dwmac = plat_dat->bsp_priv;  in visconti_eth_init_hw()  local
155 	switch (plat_dat->phy_interface) {  in visconti_eth_init_hw()
169 		dev_err(&pdev->dev, "Unsupported phy-mode (%d)\n", plat_dat->phy_interface);  in visconti_eth_init_hw()
170 		return -EOPNOTSUPP;  in visconti_eth_init_hw()
173 	writel(phy_intf_sel, dwmac->reg + REG_ETHER_CONTROL);  in visconti_eth_init_hw()
177 	writel(clk_sel_val, dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_init_hw()
180 	       dwmac->reg + REG_ETHER_CLOCK_SEL);  in visconti_eth_init_hw()
182 	/* release internal-reset */  in visconti_eth_init_hw()
184 	writel(phy_intf_sel, dwmac->reg + REG_ETHER_CONTROL);  in visconti_eth_init_hw()
192 	struct visconti_eth *dwmac = plat_dat->bsp_priv;  in visconti_eth_clock_probe()  local
195 	dwmac->phy_ref_clk = devm_clk_get(&pdev->dev, "phy_ref_clk");  in visconti_eth_clock_probe()
196 	if (IS_ERR(dwmac->phy_ref_clk))  in visconti_eth_clock_probe()
197 		return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->phy_ref_clk),  in visconti_eth_clock_probe()
200 	err = clk_prepare_enable(dwmac->phy_ref_clk);  in visconti_eth_clock_probe()
202 		dev_err(&pdev->dev, "failed to enable phy_ref clock: %d\n", err);  in visconti_eth_clock_probe()
211 	struct visconti_eth *dwmac = get_stmmac_bsp_priv(&pdev->dev);  in visconti_eth_clock_remove()  local
215 	clk_disable_unprepare(dwmac->phy_ref_clk);  in visconti_eth_clock_remove()
216 	clk_disable_unprepare(priv->plat->stmmac_clk);  in visconti_eth_clock_remove()
223 	struct visconti_eth *dwmac;  in visconti_eth_dwmac_probe()  local
234 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);  in visconti_eth_dwmac_probe()
235 	if (!dwmac)  in visconti_eth_dwmac_probe()
236 		return -ENOMEM;  in visconti_eth_dwmac_probe()
238 	dwmac->reg = stmmac_res.addr;  in visconti_eth_dwmac_probe()
239 	dwmac->dev = &pdev->dev;  in visconti_eth_dwmac_probe()
240 	plat_dat->bsp_priv = dwmac;  in visconti_eth_dwmac_probe()
241 	plat_dat->set_clk_tx_rate = visconti_eth_set_clk_tx_rate;  in visconti_eth_dwmac_probe()
249 	plat_dat->dma_cfg->aal = 1;  in visconti_eth_dwmac_probe()
251 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);  in visconti_eth_dwmac_probe()
270 	{ .compatible = "toshiba,visconti-dwmac" },
279 		.name           = "visconti-eth-dwmac",
286 MODULE_DESCRIPTION("Toshiba Visconti Ethernet DWMAC glue driver");