1 // SPDX-License-Identifier: GPL-2.0-only
31 	unsigned long fin_time = jiffies + 3 * HZ; /* 3 seconds */  in sxgbe_mdio_busy_wait()
39 	return -EBUSY;  in sxgbe_mdio_busy_wait()
48 	       ((sp->clk_csr & 0x7) << 19) | SXGBE_MII_BUSY;  in sxgbe_mdio_ctrl_data()
49 	writel(reg, sp->ioaddr + sp->hw->mii.data);  in sxgbe_mdio_ctrl_data()
60 	writel(reg, sp->ioaddr + sp->hw->mii.addr);  in sxgbe_mdio_c45()
70 	writel(1 << phyaddr, sp->ioaddr + SXGBE_MDIO_CLAUSE22_PORT_REG);  in sxgbe_mdio_c22()
74 	writel(reg, sp->ioaddr + sp->hw->mii.addr);  in sxgbe_mdio_c22()
82 	const struct mii_regs *mii = &sp->hw->mii;  in sxgbe_mdio_access()
85 	rc = sxgbe_mdio_busy_wait(sp->ioaddr, mii->data);  in sxgbe_mdio_access()
92 		 /* Ports 0-3 only support C22. */  in sxgbe_mdio_access()
94 			return -ENODEV;  in sxgbe_mdio_access()
99 	return sxgbe_mdio_busy_wait(sp->ioaddr, mii->data);  in sxgbe_mdio_access()
107  * Description: this function used for C45 and C22 MDIO Read
111 	struct net_device *ndev = bus->priv;  in sxgbe_mdio_read()
119 	return readl(priv->ioaddr + priv->hw->mii.data) & 0xffff;  in sxgbe_mdio_read()
128  * Description: this function is used for C45 and C22 MDIO write
133 	struct net_device *ndev = bus->priv;  in sxgbe_mdio_write()
144 	struct sxgbe_mdio_bus_data *mdio_data = priv->plat->mdio_bus_data;  in sxgbe_mdio_register()
154 		return -ENOMEM;  in sxgbe_mdio_register()
157 	if (mdio_data->irqs)  in sxgbe_mdio_register()
158 		irqlist = mdio_data->irqs;  in sxgbe_mdio_register()
160 		irqlist = priv->mii_irq;  in sxgbe_mdio_register()
163 	mdio_bus->name = "sxgbe";  in sxgbe_mdio_register()
164 	mdio_bus->read = &sxgbe_mdio_read;  in sxgbe_mdio_register()
165 	mdio_bus->write = &sxgbe_mdio_write;  in sxgbe_mdio_register()
166 	snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%x",  in sxgbe_mdio_register()
167 		 mdio_bus->name, priv->plat->bus_id);  in sxgbe_mdio_register()
168 	mdio_bus->priv = ndev;  in sxgbe_mdio_register()
169 	mdio_bus->phy_mask = mdio_data->phy_mask;  in sxgbe_mdio_register()
170 	mdio_bus->parent = priv->device;  in sxgbe_mdio_register()
188 			if ((mdio_data->irqs == NULL) &&  in sxgbe_mdio_register()
189 			    (mdio_data->probed_phy_irq > 0)) {  in sxgbe_mdio_register()
190 				irqlist[phy_addr] = mdio_data->probed_phy_irq;  in sxgbe_mdio_register()
191 				phy->irq = mdio_data->probed_phy_irq;  in sxgbe_mdio_register()
198 			if (priv->plat->phy_addr == -1)  in sxgbe_mdio_register()
199 				priv->plat->phy_addr = phy_addr;  in sxgbe_mdio_register()
201 			act = (priv->plat->phy_addr == phy_addr);  in sxgbe_mdio_register()
202 			switch (phy->irq) {  in sxgbe_mdio_register()
210 				sprintf(irq_num, "%d", phy->irq);  in sxgbe_mdio_register()
215 				    phy->phy_id, phy_addr, irq_str,  in sxgbe_mdio_register()
226 	priv->mii = mdio_bus;  in sxgbe_mdio_register()
231 	err = -ENODEV;  in sxgbe_mdio_register()
242 	if (!priv->mii)  in sxgbe_mdio_unregister()
245 	mdiobus_unregister(priv->mii);  in sxgbe_mdio_unregister()
246 	priv->mii->priv = NULL;  in sxgbe_mdio_unregister()
247 	mdiobus_free(priv->mii);  in sxgbe_mdio_unregister()
248 	priv->mii = NULL;  in sxgbe_mdio_unregister()