realtek: 6.6: rework mdio bus driver

This is not a surprise. Before upgrade to 6.6 we refactored the mdio part of
the ethernet driver and knew that changes will come. Drop all unnecessary
stuff from the old world and adapt to the new kernel.

- remove legacy functions
- directly link new functions
- adapt to new shared base address
- remove references to old MDIO bus capabilities

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>

1 files changed, 11 insertions, 49 deletions

diff --git a/target/linux/realtek/files-6.6/drivers/net/ethernet/rtl838x_eth.c b/target/linux/realtek/files-6.6/drivers/net/ethernet/rtl838x_eth.c
index 1cfe5e44db..29651c0aec 100644
--- a/target/linux/realtek/files-6.6/drivers/net/ethernet/rtl838x_eth.c
+++ b/target/linux/realtek/files-6.6/drivers/net/ethernet/rtl838x_eth.c
@@ -1740,7 +1740,7 @@ static int rtmdio_package_rw(struct phy_device *phydev, int op, int port,
 	/* lock and inform bus about non default addressing */
 	phy_lock_mdio_bus(phydev);
 	__mdiobus_write(phydev->mdio.bus, phydev->mdio.addr,
-			RTL821X_PORT_SELECT, shared->addr + port);
+			RTL821X_PORT_SELECT, shared->base_addr + port);
 
 	oldpage = ret = rtmdio_read_page(phydev);
 	if (oldpage >= 0 && oldpage != page) {
@@ -1945,44 +1945,6 @@ static int rtmdio_93xx_write(struct mii_bus *bus, int addr, int regnum, u16 val)
 	return 0;
 }
 
-/* These wrappers can be dropped after switch to kernel 6.6 */
-
-static int rtmdio_83xx_read_legacy(struct mii_bus *bus, int addr, int regnum)
-{
-	if (regnum & MII_ADDR_C45)
-		return rtmdio_read_c45(bus, addr, mdiobus_c45_devad(regnum),
-				       mdiobus_c45_regad(regnum));
-	else
-		return rtmdio_83xx_read(bus, addr, regnum);
-}
-
-static int rtmdio_93xx_read_legacy(struct mii_bus *bus, int addr, int regnum)
-{
-	if (regnum & MII_ADDR_C45)
-		return rtmdio_read_c45(bus, addr, mdiobus_c45_devad(regnum),
-				       mdiobus_c45_regad(regnum));
-	else
-		return rtmdio_93xx_read(bus, addr, regnum);
-}
-
-static int rtmdio_83xx_write_legacy(struct mii_bus *bus, int addr, int regnum, u16 val)
-{
-	if (regnum & MII_ADDR_C45)
-		return rtmdio_write_c45(bus, addr, mdiobus_c45_devad(regnum),
-					mdiobus_c45_regad(regnum), val);
-	else
-		return rtmdio_83xx_write(bus, addr, regnum, val);
-}
-
-static int rtmdio_93xx_write_legacy(struct mii_bus *bus, int addr, int regnum, u16 val)
-{
-	if (regnum & MII_ADDR_C45)
-		return rtmdio_write_c45(bus, addr, mdiobus_c45_devad(regnum),
-					mdiobus_c45_regad(regnum), val);
-	else
-		return rtmdio_93xx_write(bus, addr, regnum, val);
-}
-
 static int rtmdio_838x_reset(struct mii_bus *bus)
 {
 	pr_debug("%s called\n", __func__);
@@ -2253,8 +2215,8 @@ static int rtl838x_mdio_init(struct rtl838x_eth_priv *priv)
 	switch(priv->family_id) {
 	case RTL8380_FAMILY_ID:
 		priv->mii_bus->name = "rtl838x-eth-mdio";
-		priv->mii_bus->read = rtmdio_83xx_read_legacy;
-		priv->mii_bus->write = rtmdio_83xx_write_legacy;
+		priv->mii_bus->read = rtmdio_83xx_read;
+		priv->mii_bus->write = rtmdio_83xx_write;
 		priv->mii_bus->reset = rtmdio_838x_reset;
 		bus_priv->read_mmd_phy = rtl838x_read_mmd_phy;
 		bus_priv->write_mmd_phy = rtl838x_write_mmd_phy;
@@ -2263,8 +2225,8 @@ static int rtl838x_mdio_init(struct rtl838x_eth_priv *priv)
 		break;
 	case RTL8390_FAMILY_ID:
 		priv->mii_bus->name = "rtl839x-eth-mdio";
-		priv->mii_bus->read = rtmdio_83xx_read_legacy;
-		priv->mii_bus->write = rtmdio_83xx_write_legacy;
+		priv->mii_bus->read = rtmdio_83xx_read;
+		priv->mii_bus->write = rtmdio_83xx_write;
 		priv->mii_bus->reset = rtmdio_839x_reset;
 		bus_priv->read_mmd_phy = rtl839x_read_mmd_phy;
 		bus_priv->write_mmd_phy = rtl839x_write_mmd_phy;
@@ -2273,27 +2235,27 @@ static int rtl838x_mdio_init(struct rtl838x_eth_priv *priv)
 		break;
 	case RTL9300_FAMILY_ID:
 		priv->mii_bus->name = "rtl930x-eth-mdio";
-		priv->mii_bus->read = rtmdio_93xx_read_legacy;
-		priv->mii_bus->write = rtmdio_93xx_write_legacy;
+		priv->mii_bus->read = rtmdio_93xx_read;
+		priv->mii_bus->write = rtmdio_93xx_write;
 		priv->mii_bus->reset = rtmdio_930x_reset;
 		bus_priv->read_mmd_phy = rtl930x_read_mmd_phy;
 		bus_priv->write_mmd_phy = rtl930x_write_mmd_phy;
 		bus_priv->read_phy = rtl930x_read_phy;
 		bus_priv->write_phy = rtl930x_write_phy;
-		priv->mii_bus->probe_capabilities = MDIOBUS_C22_C45;
 		break;
 	case RTL9310_FAMILY_ID:
 		priv->mii_bus->name = "rtl931x-eth-mdio";
-		priv->mii_bus->read = rtmdio_93xx_read_legacy;
-		priv->mii_bus->write = rtmdio_93xx_write_legacy;
+		priv->mii_bus->read = rtmdio_93xx_read;
+		priv->mii_bus->write = rtmdio_93xx_write;
  		priv->mii_bus->reset = rtmdio_931x_reset;
 		bus_priv->read_mmd_phy = rtl931x_read_mmd_phy;
 		bus_priv->write_mmd_phy = rtl931x_write_mmd_phy;
 		bus_priv->read_phy = rtl931x_read_phy;
 		bus_priv->write_phy = rtl931x_write_phy;
-		priv->mii_bus->probe_capabilities = MDIOBUS_C22_C45;
 		break;
 	}
+	priv->mii_bus->read_c45 = rtmdio_read_c45;
+	priv->mii_bus->write_c45 = rtmdio_write_c45;
 	priv->mii_bus->parent = &priv->pdev->dev;
 
 	for_each_node_by_name(dn, "ethernet-phy") {