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_c22()
85 	rc = sxgbe_mdio_busy_wait(sp->ioaddr, mii->data);  in sxgbe_mdio_access_c22()
89 	/* Ports 0-3 only support C22. */  in sxgbe_mdio_access_c22()
91 		return -ENODEV;  in sxgbe_mdio_access_c22()
95 	return sxgbe_mdio_busy_wait(sp->ioaddr, mii->data);  in sxgbe_mdio_access_c22()
102 	const struct mii_regs *mii = &sp->hw->mii;  in sxgbe_mdio_access_c45()
105 	rc = sxgbe_mdio_busy_wait(sp->ioaddr, mii->data);  in sxgbe_mdio_access_c45()
111 	return sxgbe_mdio_busy_wait(sp->ioaddr, mii->data);  in sxgbe_mdio_access_c45()
119  * Description: this function used for C22 MDIO Read
123 	struct net_device *ndev = bus->priv;  in sxgbe_mdio_read_c22()
132 	return readl(priv->ioaddr + priv->hw->mii.data) & 0xffff;  in sxgbe_mdio_read_c22()
146 	struct net_device *ndev = bus->priv;  in sxgbe_mdio_read_c45()
155 	return readl(priv->ioaddr + priv->hw->mii.data) & 0xffff;  in sxgbe_mdio_read_c45()
164  * Description: this function is used for C22 MDIO write
169 	struct net_device *ndev = bus->priv;  in sxgbe_mdio_write_c22()
188 	struct net_device *ndev = bus->priv;  in sxgbe_mdio_write_c45()
199 	struct sxgbe_mdio_bus_data *mdio_data = priv->plat->mdio_bus_data;  in sxgbe_mdio_register()
209 		return -ENOMEM;  in sxgbe_mdio_register()
212 	if (mdio_data->irqs)  in sxgbe_mdio_register()
213 		irqlist = mdio_data->irqs;  in sxgbe_mdio_register()
215 		irqlist = priv->mii_irq;  in sxgbe_mdio_register()
218 	mdio_bus->name = "sxgbe";  in sxgbe_mdio_register()
219 	mdio_bus->read = sxgbe_mdio_read_c22;  in sxgbe_mdio_register()
220 	mdio_bus->write = sxgbe_mdio_write_c22;  in sxgbe_mdio_register()
221 	mdio_bus->read_c45 = sxgbe_mdio_read_c45;  in sxgbe_mdio_register()
222 	mdio_bus->write_c45 = sxgbe_mdio_write_c45;  in sxgbe_mdio_register()
223 	snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%x",  in sxgbe_mdio_register()
224 		 mdio_bus->name, priv->plat->bus_id);  in sxgbe_mdio_register()
225 	mdio_bus->priv = ndev;  in sxgbe_mdio_register()
226 	mdio_bus->phy_mask = mdio_data->phy_mask;  in sxgbe_mdio_register()
227 	mdio_bus->parent = priv->device;  in sxgbe_mdio_register()
245 			if ((mdio_data->irqs == NULL) &&  in sxgbe_mdio_register()
246 			    (mdio_data->probed_phy_irq > 0)) {  in sxgbe_mdio_register()
247 				irqlist[phy_addr] = mdio_data->probed_phy_irq;  in sxgbe_mdio_register()
248 				phy->irq = mdio_data->probed_phy_irq;  in sxgbe_mdio_register()
255 			if (priv->plat->phy_addr == -1)  in sxgbe_mdio_register()
256 				priv->plat->phy_addr = phy_addr;  in sxgbe_mdio_register()
258 			act = (priv->plat->phy_addr == phy_addr);  in sxgbe_mdio_register()
259 			switch (phy->irq) {  in sxgbe_mdio_register()
267 				sprintf(irq_num, "%d", phy->irq);  in sxgbe_mdio_register()
272 				    phy->phy_id, phy_addr, irq_str,  in sxgbe_mdio_register()
283 	priv->mii = mdio_bus;  in sxgbe_mdio_register()
288 	err = -ENODEV;  in sxgbe_mdio_register()
299 	if (!priv->mii)  in sxgbe_mdio_unregister()
302 	mdiobus_unregister(priv->mii);  in sxgbe_mdio_unregister()
303 	priv->mii->priv = NULL;  in sxgbe_mdio_unregister()
304 	mdiobus_free(priv->mii);  in sxgbe_mdio_unregister()
305 	priv->mii = NULL;  in sxgbe_mdio_unregister()