1 files changed, 342 insertions, 296 deletions

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 710679067594..4e697eea6e0f 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -216,25 +216,130 @@ static int mv88e6xxx_write(struct mv88e6xxx_chip *chip,
 	return 0;
 }
 
-/* Indirect write to single pointer-data register with an Update bit */
-static int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg,
-			    u16 update)
+static int mv88e6xxx_phy_read(struct mv88e6xxx_chip *chip, int phy,
+			      int reg, u16 *val)
 {
-	u16 val;
-	int i, err;
+	int addr = phy; /* PHY devices addresses start at 0x0 */
+
+	if (!chip->phy_ops)
+		return -EOPNOTSUPP;
+
+	return chip->phy_ops->read(chip, addr, reg, val);
+}
+
+static int mv88e6xxx_phy_write(struct mv88e6xxx_chip *chip, int phy,
+			       int reg, u16 val)
+{
+	int addr = phy; /* PHY devices addresses start at 0x0 */
+
+	if (!chip->phy_ops)
+		return -EOPNOTSUPP;
+
+	return chip->phy_ops->write(chip, addr, reg, val);
+}
+
+static int mv88e6xxx_phy_page_get(struct mv88e6xxx_chip *chip, int phy, u8 page)
+{
+	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_PHY_PAGE))
+		return -EOPNOTSUPP;
+
+	return mv88e6xxx_phy_write(chip, phy, PHY_PAGE, page);
+}
+
+static void mv88e6xxx_phy_page_put(struct mv88e6xxx_chip *chip, int phy)
+{
+	int err;
+
+	/* Restore PHY page Copper 0x0 for access via the registered MDIO bus */
+	err = mv88e6xxx_phy_write(chip, phy, PHY_PAGE, PHY_PAGE_COPPER);
+	if (unlikely(err)) {
+		dev_err(chip->dev, "failed to restore PHY %d page Copper (%d)\n",
+			phy, err);
+	}
+}
+
+static int mv88e6xxx_phy_page_read(struct mv88e6xxx_chip *chip, int phy,
+				   u8 page, int reg, u16 *val)
+{
+	int err;
+
+	/* There is no paging for registers 22 */
+	if (reg == PHY_PAGE)
+		return -EINVAL;
+
+	err = mv88e6xxx_phy_page_get(chip, phy, page);
+	if (!err) {
+		err = mv88e6xxx_phy_read(chip, phy, reg, val);
+		mv88e6xxx_phy_page_put(chip, phy);
+	}
+
+	return err;
+}
+
+static int mv88e6xxx_phy_page_write(struct mv88e6xxx_chip *chip, int phy,
+				    u8 page, int reg, u16 val)
+{
+	int err;
+
+	/* There is no paging for registers 22 */
+	if (reg == PHY_PAGE)
+		return -EINVAL;
+
+	err = mv88e6xxx_phy_page_get(chip, phy, page);
+	if (!err) {
+		err = mv88e6xxx_phy_write(chip, phy, PHY_PAGE, page);
+		mv88e6xxx_phy_page_put(chip, phy);
+	}
+
+	return err;
+}
+
+static int mv88e6xxx_serdes_read(struct mv88e6xxx_chip *chip, int reg, u16 *val)
+{
+	return mv88e6xxx_phy_page_read(chip, ADDR_SERDES, SERDES_PAGE_FIBER,
+				       reg, val);
+}
+
+static int mv88e6xxx_serdes_write(struct mv88e6xxx_chip *chip, int reg, u16 val)
+{
+	return mv88e6xxx_phy_page_write(chip, ADDR_SERDES, SERDES_PAGE_FIBER,
+					reg, val);
+}
+
+static int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg,
+			  u16 mask)
+{
+	int i;
+
+	for (i = 0; i < 16; i++) {
+		u16 val;
+		int err;
 
-	/* Wait until the previous operation is completed */
-	for (i = 0; i < 16; ++i) {
 		err = mv88e6xxx_read(chip, addr, reg, &val);
 		if (err)
 			return err;
 
-		if (!(val & BIT(15)))
-			break;
+		if (!(val & mask))
+			return 0;
+
+		usleep_range(1000, 2000);
 	}
 
-	if (i == 16)
-		return -ETIMEDOUT;
+	dev_err(chip->dev, "Timeout while waiting for switch\n");
+	return -ETIMEDOUT;
+}
+
+/* Indirect write to single pointer-data register with an Update bit */
+static int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg,
+			    u16 update)
+{
+	u16 val;
+	int err;
+
+	/* Wait until the previous operation is completed */
+	err = mv88e6xxx_wait(chip, addr, reg, BIT(15));
+	if (err)
+		return err;
 
 	/* Set the Update bit to trigger a write operation */
 	val = BIT(15) | update;
@@ -260,26 +365,10 @@ static int _mv88e6xxx_reg_write(struct mv88e6xxx_chip *chip, int addr,
 	return mv88e6xxx_write(chip, addr, reg, val);
 }
 
-static int mv88e6xxx_mdio_read_direct(struct mv88e6xxx_chip *chip,
-				      int addr, int regnum)
-{
-	if (addr >= 0)
-		return _mv88e6xxx_reg_read(chip, addr, regnum);
-	return 0xffff;
-}
-
-static int mv88e6xxx_mdio_write_direct(struct mv88e6xxx_chip *chip,
-				       int addr, int regnum, u16 val)
-{
-	if (addr >= 0)
-		return _mv88e6xxx_reg_write(chip, addr, regnum, val);
-	return 0;
-}
-
 static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip)
 {
 	int ret;
-	unsigned long timeout;
+	int i;
 
 	ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_CONTROL);
 	if (ret < 0)
@@ -290,8 +379,7 @@ static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip)
 	if (ret)
 		return ret;
 
-	timeout = jiffies + 1 * HZ;
-	while (time_before(jiffies, timeout)) {
+	for (i = 0; i < 16; i++) {
 		ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_STATUS);
 		if (ret < 0)
 			return ret;
@@ -307,8 +395,7 @@ static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip)
 
 static int mv88e6xxx_ppu_enable(struct mv88e6xxx_chip *chip)
 {
-	int ret, err;
-	unsigned long timeout;
+	int ret, err, i;
 
 	ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_CONTROL);
 	if (ret < 0)
@@ -319,8 +406,7 @@ static int mv88e6xxx_ppu_enable(struct mv88e6xxx_chip *chip)
 	if (err)
 		return err;
 
-	timeout = jiffies + 1 * HZ;
-	while (time_before(jiffies, timeout)) {
+	for (i = 0; i < 16; i++) {
 		ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_STATUS);
 		if (ret < 0)
 			return ret;
@@ -400,34 +486,44 @@ static void mv88e6xxx_ppu_state_init(struct mv88e6xxx_chip *chip)
 	chip->ppu_timer.function = mv88e6xxx_ppu_reenable_timer;
 }
 
-static int mv88e6xxx_mdio_read_ppu(struct mv88e6xxx_chip *chip, int addr,
-				   int regnum)
+static void mv88e6xxx_ppu_state_destroy(struct mv88e6xxx_chip *chip)
 {
-	int ret;
+	del_timer_sync(&chip->ppu_timer);
+}
 
-	ret = mv88e6xxx_ppu_access_get(chip);
-	if (ret >= 0) {
-		ret = _mv88e6xxx_reg_read(chip, addr, regnum);
+static int mv88e6xxx_phy_ppu_read(struct mv88e6xxx_chip *chip, int addr,
+				  int reg, u16 *val)
+{
+	int err;
+
+	err = mv88e6xxx_ppu_access_get(chip);
+	if (!err) {
+		err = mv88e6xxx_read(chip, addr, reg, val);
 		mv88e6xxx_ppu_access_put(chip);
 	}
 
-	return ret;
+	return err;
 }
 
-static int mv88e6xxx_mdio_write_ppu(struct mv88e6xxx_chip *chip, int addr,
-				    int regnum, u16 val)
+static int mv88e6xxx_phy_ppu_write(struct mv88e6xxx_chip *chip, int addr,
+				   int reg, u16 val)
 {
-	int ret;
+	int err;
 
-	ret = mv88e6xxx_ppu_access_get(chip);
-	if (ret >= 0) {
-		ret = _mv88e6xxx_reg_write(chip, addr, regnum, val);
+	err = mv88e6xxx_ppu_access_get(chip);
+	if (!err) {
+		err = mv88e6xxx_write(chip, addr, reg, val);
 		mv88e6xxx_ppu_access_put(chip);
 	}
 
-	return ret;
+	return err;
 }
 
+static const struct mv88e6xxx_ops mv88e6xxx_phy_ppu_ops = {
+	.read = mv88e6xxx_phy_ppu_read,
+	.write = mv88e6xxx_phy_ppu_write,
+};
+
 static bool mv88e6xxx_6065_family(struct mv88e6xxx_chip *chip)
 {
 	return chip->info->family == MV88E6XXX_FAMILY_6065;
@@ -819,130 +915,69 @@ static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
 	mutex_unlock(&chip->reg_lock);
 }
 
-static int _mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int reg, int offset,
-			   u16 mask)
-{
-	unsigned long timeout = jiffies + HZ / 10;
-
-	while (time_before(jiffies, timeout)) {
-		int ret;
-
-		ret = _mv88e6xxx_reg_read(chip, reg, offset);
-		if (ret < 0)
-			return ret;
-		if (!(ret & mask))
-			return 0;
-
-		usleep_range(1000, 2000);
-	}
-	return -ETIMEDOUT;
-}
-
-static int mv88e6xxx_mdio_wait(struct mv88e6xxx_chip *chip)
-{
-	return _mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_SMI_OP,
-			       GLOBAL2_SMI_OP_BUSY);
-}
-
 static int _mv88e6xxx_atu_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_ATU_OP,
-			       GLOBAL_ATU_OP_BUSY);
-}
-
-static int mv88e6xxx_mdio_read_indirect(struct mv88e6xxx_chip *chip,
-					int addr, int regnum)
-{
-	int ret;
-
-	ret = _mv88e6xxx_reg_write(chip, REG_GLOBAL2, GLOBAL2_SMI_OP,
-				   GLOBAL2_SMI_OP_22_READ | (addr << 5) |
-				   regnum);
-	if (ret < 0)
-		return ret;
-
-	ret = mv88e6xxx_mdio_wait(chip);
-	if (ret < 0)
-		return ret;
-
-	ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL2, GLOBAL2_SMI_DATA);
-
-	return ret;
-}
-
-static int mv88e6xxx_mdio_write_indirect(struct mv88e6xxx_chip *chip,
-					 int addr, int regnum, u16 val)
-{
-	int ret;
-
-	ret = _mv88e6xxx_reg_write(chip, REG_GLOBAL2, GLOBAL2_SMI_DATA, val);
-	if (ret < 0)
-		return ret;
-
-	ret = _mv88e6xxx_reg_write(chip, REG_GLOBAL2, GLOBAL2_SMI_OP,
-				   GLOBAL2_SMI_OP_22_WRITE | (addr << 5) |
-				   regnum);
-
-	return mv88e6xxx_mdio_wait(chip);
+	return mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_ATU_OP,
+			      GLOBAL_ATU_OP_BUSY);
 }
 
 static int mv88e6xxx_get_eee(struct dsa_switch *ds, int port,
 			     struct ethtool_eee *e)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
-	int reg;
+	u16 reg;
+	int err;
 
 	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE))
 		return -EOPNOTSUPP;
 
 	mutex_lock(&chip->reg_lock);
 
-	reg = mv88e6xxx_mdio_read_indirect(chip, port, 16);
-	if (reg < 0)
+	err = mv88e6xxx_phy_read(chip, port, 16, &reg);
+	if (err)
 		goto out;
 
 	e->eee_enabled = !!(reg & 0x0200);
 	e->tx_lpi_enabled = !!(reg & 0x0100);
 
-	reg = _mv88e6xxx_reg_read(chip, REG_PORT(port), PORT_STATUS);
-	if (reg < 0)
+	err = mv88e6xxx_read(chip, REG_PORT(port), PORT_STATUS, &reg);
+	if (err)
 		goto out;
 
 	e->eee_active = !!(reg & PORT_STATUS_EEE);
-	reg = 0;
-
 out:
 	mutex_unlock(&chip->reg_lock);
-	return reg;
+
+	return err;
 }
 
 static int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
 			     struct phy_device *phydev, struct ethtool_eee *e)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
-	int reg;
-	int ret;
+	u16 reg;
+	int err;
 
 	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE))
 		return -EOPNOTSUPP;
 
 	mutex_lock(&chip->reg_lock);
 
-	ret = mv88e6xxx_mdio_read_indirect(chip, port, 16);
-	if (ret < 0)
+	err = mv88e6xxx_phy_read(chip, port, 16, &reg);
+	if (err)
 		goto out;
 
-	reg = ret & ~0x0300;
+	reg &= ~0x0300;
 	if (e->eee_enabled)
 		reg |= 0x0200;
 	if (e->tx_lpi_enabled)
 		reg |= 0x0100;
 
-	ret = mv88e6xxx_mdio_write_indirect(chip, port, 16, reg);
+	err = mv88e6xxx_phy_write(chip, port, 16, reg);
 out:
 	mutex_unlock(&chip->reg_lock);
 
-	return ret;
+	return err;
 }
 
 static int _mv88e6xxx_atu_cmd(struct mv88e6xxx_chip *chip, u16 fid, u16 cmd)
@@ -1227,8 +1262,8 @@ static int _mv88e6xxx_port_pvid_set(struct mv88e6xxx_chip *chip,
 
 static int _mv88e6xxx_vtu_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_VTU_OP,
-			       GLOBAL_VTU_OP_BUSY);
+	return mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_VTU_OP,
+			      GLOBAL_VTU_OP_BUSY);
 }
 
 static int _mv88e6xxx_vtu_cmd(struct mv88e6xxx_chip *chip, u16 op)
@@ -2302,38 +2337,6 @@ static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port)
 	mutex_unlock(&chip->reg_lock);
 }
 
-static int _mv88e6xxx_mdio_page_write(struct mv88e6xxx_chip *chip,
-				      int port, int page, int reg, int val)
-{
-	int ret;
-
-	ret = mv88e6xxx_mdio_write_indirect(chip, port, 0x16, page);
-	if (ret < 0)
-		goto restore_page_0;
-
-	ret = mv88e6xxx_mdio_write_indirect(chip, port, reg, val);
-restore_page_0:
-	mv88e6xxx_mdio_write_indirect(chip, port, 0x16, 0x0);
-
-	return ret;
-}
-
-static int _mv88e6xxx_mdio_page_read(struct mv88e6xxx_chip *chip,
-				     int port, int page, int reg)
-{
-	int ret;
-
-	ret = mv88e6xxx_mdio_write_indirect(chip, port, 0x16, page);
-	if (ret < 0)
-		goto restore_page_0;
-
-	ret = mv88e6xxx_mdio_read_indirect(chip, port, reg);
-restore_page_0:
-	mv88e6xxx_mdio_write_indirect(chip, port, 0x16, 0x0);
-
-	return ret;
-}
-
 static int mv88e6xxx_switch_reset(struct mv88e6xxx_chip *chip)
 {
 	bool ppu_active = mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU_ACTIVE);
@@ -2396,23 +2399,22 @@ static int mv88e6xxx_switch_reset(struct mv88e6xxx_chip *chip)
 	return ret;
 }
 
-static int mv88e6xxx_power_on_serdes(struct mv88e6xxx_chip *chip)
+static int mv88e6xxx_serdes_power_on(struct mv88e6xxx_chip *chip)
 {
-	int ret;
+	u16 val;
+	int err;
 
-	ret = _mv88e6xxx_mdio_page_read(chip, REG_FIBER_SERDES,
-					PAGE_FIBER_SERDES, MII_BMCR);
-	if (ret < 0)
-		return ret;
+	/* Clear Power Down bit */
+	err = mv88e6xxx_serdes_read(chip, MII_BMCR, &val);
+	if (err)
+		return err;
 
-	if (ret & BMCR_PDOWN) {
-		ret &= ~BMCR_PDOWN;
-		ret = _mv88e6xxx_mdio_page_write(chip, REG_FIBER_SERDES,
-						 PAGE_FIBER_SERDES, MII_BMCR,
-						 ret);
+	if (val & BMCR_PDOWN) {
+		val &= ~BMCR_PDOWN;
+		err = mv88e6xxx_serdes_write(chip, MII_BMCR, val);
 	}
 
-	return ret;
+	return err;
 }
 
 static int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port,
@@ -2486,28 +2488,13 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 		PORT_CONTROL_USE_TAG | PORT_CONTROL_USE_IP |
 		PORT_CONTROL_STATE_FORWARDING;
 	if (dsa_is_cpu_port(ds, port)) {
-		if (mv88e6xxx_6095_family(chip) || mv88e6xxx_6185_family(chip))
-			reg |= PORT_CONTROL_DSA_TAG;
-		if (mv88e6xxx_6352_family(chip) ||
-		    mv88e6xxx_6351_family(chip) ||
-		    mv88e6xxx_6165_family(chip) ||
-		    mv88e6xxx_6097_family(chip) ||
-		    mv88e6xxx_6320_family(chip)) {
+		if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_EDSA))
 			reg |= PORT_CONTROL_FRAME_ETHER_TYPE_DSA |
-				PORT_CONTROL_FORWARD_UNKNOWN |
 				PORT_CONTROL_FORWARD_UNKNOWN_MC;
-		}
-
-		if (mv88e6xxx_6352_family(chip) ||
-		    mv88e6xxx_6351_family(chip) ||
-		    mv88e6xxx_6165_family(chip) ||
-		    mv88e6xxx_6097_family(chip) ||
-		    mv88e6xxx_6095_family(chip) ||
-		    mv88e6xxx_6065_family(chip) ||
-		    mv88e6xxx_6185_family(chip) ||
-		    mv88e6xxx_6320_family(chip)) {
-			reg |= PORT_CONTROL_EGRESS_ADD_TAG;
-		}
+		else
+			reg |= PORT_CONTROL_DSA_TAG;
+		reg |= PORT_CONTROL_EGRESS_ADD_TAG |
+			PORT_CONTROL_FORWARD_UNKNOWN;
 	}
 	if (dsa_is_dsa_port(ds, port)) {
 		if (mv88e6xxx_6095_family(chip) ||
@@ -2535,7 +2522,7 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 	/* If this port is connected to a SerDes, make sure the SerDes is not
 	 * powered down.
 	 */
-	if (mv88e6xxx_6352_family(chip)) {
+	if (mv88e6xxx_has(chip, MV88E6XXX_FLAGS_SERDES)) {
 		ret = _mv88e6xxx_reg_read(chip, REG_PORT(port), PORT_STATUS);
 		if (ret < 0)
 			return ret;
@@ -2543,7 +2530,7 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 		if ((ret == PORT_STATUS_CMODE_100BASE_X) ||
 		    (ret == PORT_STATUS_CMODE_1000BASE_X) ||
 		    (ret == PORT_STATUS_CMODE_SGMII)) {
-			ret = mv88e6xxx_power_on_serdes(chip);
+			ret = mv88e6xxx_serdes_power_on(chip);
 			if (ret < 0)
 				return ret;
 		}
@@ -2635,10 +2622,13 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 		/* Port Ethertype: use the Ethertype DSA Ethertype
 		 * value.
 		 */
-		ret = _mv88e6xxx_reg_write(chip, REG_PORT(port),
-					   PORT_ETH_TYPE, ETH_P_EDSA);
-		if (ret)
-			return ret;
+		if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_EDSA)) {
+			ret = _mv88e6xxx_reg_write(chip, REG_PORT(port),
+						   PORT_ETH_TYPE, ETH_P_EDSA);
+			if (ret)
+				return ret;
+		}
+
 		/* Tag Remap: use an identity 802.1p prio -> switch
 		 * prio mapping.
 		 */
@@ -2953,8 +2943,8 @@ static int mv88e6xxx_g2_clear_irl(struct mv88e6xxx_chip *chip)
 			break;
 
 		/* Wait for the operation to complete */
-		err = _mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_IRL_CMD,
-				      GLOBAL2_IRL_CMD_BUSY);
+		err = mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_IRL_CMD,
+				     GLOBAL2_IRL_CMD_BUSY);
 		if (err)
 			break;
 	}
@@ -3008,9 +2998,9 @@ static int mv88e6xxx_g2_clear_pot(struct mv88e6xxx_chip *chip)
 
 static int mv88e6xxx_g2_eeprom_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_EEPROM_CMD,
-			       GLOBAL2_EEPROM_CMD_BUSY |
-			       GLOBAL2_EEPROM_CMD_RUNNING);
+	return mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_EEPROM_CMD,
+			      GLOBAL2_EEPROM_CMD_BUSY |
+			      GLOBAL2_EEPROM_CMD_RUNNING);
 }
 
 static int mv88e6xxx_g2_eeprom_cmd(struct mv88e6xxx_chip *chip, u16 cmd)
@@ -3058,6 +3048,62 @@ static int mv88e6xxx_g2_eeprom_write16(struct mv88e6xxx_chip *chip,
 	return mv88e6xxx_g2_eeprom_cmd(chip, cmd);
 }
 
+static int mv88e6xxx_g2_smi_phy_wait(struct mv88e6xxx_chip *chip)
+{
+	return mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_SMI_PHY_CMD,
+			      GLOBAL2_SMI_PHY_CMD_BUSY);
+}
+
+static int mv88e6xxx_g2_smi_phy_cmd(struct mv88e6xxx_chip *chip, u16 cmd)
+{
+	int err;
+
+	err = mv88e6xxx_write(chip, REG_GLOBAL2, GLOBAL2_SMI_PHY_CMD, cmd);
+	if (err)
+		return err;
+
+	return mv88e6xxx_g2_smi_phy_wait(chip);
+}
+
+static int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip, int addr,
+				     int reg, u16 *val)
+{
+	u16 cmd = GLOBAL2_SMI_PHY_CMD_OP_22_READ_DATA | (addr << 5) | reg;
+	int err;
+
+	err = mv88e6xxx_g2_smi_phy_wait(chip);
+	if (err)
+		return err;
+
+	err = mv88e6xxx_g2_smi_phy_cmd(chip, cmd);
+	if (err)
+		return err;
+
+	return mv88e6xxx_read(chip, REG_GLOBAL2, GLOBAL2_SMI_PHY_DATA, val);
+}
+
+static int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip, int addr,
+				      int reg, u16 val)
+{
+	u16 cmd = GLOBAL2_SMI_PHY_CMD_OP_22_WRITE_DATA | (addr << 5) | reg;
+	int err;
+
+	err = mv88e6xxx_g2_smi_phy_wait(chip);
+	if (err)
+		return err;
+
+	err = mv88e6xxx_write(chip, REG_GLOBAL2, GLOBAL2_SMI_PHY_DATA, val);
+	if (err)
+		return err;
+
+	return mv88e6xxx_g2_smi_phy_cmd(chip, cmd);
+}
+
+static const struct mv88e6xxx_ops mv88e6xxx_g2_smi_phy_ops = {
+	.read = mv88e6xxx_g2_smi_phy_read,
+	.write = mv88e6xxx_g2_smi_phy_write,
+};
+
 static int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
 {
 	u16 reg;
@@ -3191,84 +3237,35 @@ static int mv88e6xxx_set_addr(struct dsa_switch *ds, u8 *addr)
 	return err;
 }
 
-#ifdef CONFIG_NET_DSA_HWMON
-static int mv88e6xxx_mdio_page_read(struct dsa_switch *ds, int port, int page,
-				    int reg)
-{
-	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
-	int ret;
-
-	mutex_lock(&chip->reg_lock);
-	ret = _mv88e6xxx_mdio_page_read(chip, port, page, reg);
-	mutex_unlock(&chip->reg_lock);
-
-	return ret;
-}
-
-static int mv88e6xxx_mdio_page_write(struct dsa_switch *ds, int port, int page,
-				     int reg, int val)
-{
-	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
-	int ret;
-
-	mutex_lock(&chip->reg_lock);
-	ret = _mv88e6xxx_mdio_page_write(chip, port, page, reg, val);
-	mutex_unlock(&chip->reg_lock);
-
-	return ret;
-}
-#endif
-
-static int mv88e6xxx_port_to_mdio_addr(struct mv88e6xxx_chip *chip, int port)
-{
-	if (port >= 0 && port < chip->info->num_ports)
-		return port;
-	return -EINVAL;
-}
-
-static int mv88e6xxx_mdio_read(struct mii_bus *bus, int port, int regnum)
+static int mv88e6xxx_mdio_read(struct mii_bus *bus, int phy, int reg)
 {
 	struct mv88e6xxx_chip *chip = bus->priv;
-	int addr = mv88e6xxx_port_to_mdio_addr(chip, port);
-	int ret;
+	u16 val;
+	int err;
 
-	if (addr < 0)
+	if (phy >= chip->info->num_ports)
 		return 0xffff;
 
 	mutex_lock(&chip->reg_lock);
-
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU))
-		ret = mv88e6xxx_mdio_read_ppu(chip, addr, regnum);
-	else if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_SMI_PHY))
-		ret = mv88e6xxx_mdio_read_indirect(chip, addr, regnum);
-	else
-		ret = mv88e6xxx_mdio_read_direct(chip, addr, regnum);
-
+	err = mv88e6xxx_phy_read(chip, phy, reg, &val);
 	mutex_unlock(&chip->reg_lock);
-	return ret;
+
+	return err ? err : val;
 }
 
-static int mv88e6xxx_mdio_write(struct mii_bus *bus, int port, int regnum,
-				u16 val)
+static int mv88e6xxx_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val)
 {
 	struct mv88e6xxx_chip *chip = bus->priv;
-	int addr = mv88e6xxx_port_to_mdio_addr(chip, port);
-	int ret;
+	int err;
 
-	if (addr < 0)
+	if (phy >= chip->info->num_ports)
 		return 0xffff;
 
 	mutex_lock(&chip->reg_lock);
-
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU))
-		ret = mv88e6xxx_mdio_write_ppu(chip, addr, regnum, val);
-	else if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_SMI_PHY))
-		ret = mv88e6xxx_mdio_write_indirect(chip, addr, regnum, val);
-	else
-		ret = mv88e6xxx_mdio_write_direct(chip, addr, regnum, val);
-
+	err = mv88e6xxx_phy_write(chip, phy, reg, val);
 	mutex_unlock(&chip->reg_lock);
-	return ret;
+
+	return err;
 }
 
 static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
@@ -3278,9 +3275,6 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 	struct mii_bus *bus;
 	int err;
 
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU))
-		mv88e6xxx_ppu_state_init(chip);
-
 	if (np)
 		chip->mdio_np = of_get_child_by_name(np, "mdio");
 
@@ -3336,44 +3330,42 @@ static void mv88e6xxx_mdio_unregister(struct mv88e6xxx_chip *chip)
 static int mv88e61xx_get_temp(struct dsa_switch *ds, int *temp)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
+	u16 val;
 	int ret;
-	int val;
 
 	*temp = 0;
 
 	mutex_lock(&chip->reg_lock);
 
-	ret = mv88e6xxx_mdio_write_direct(chip, 0x0, 0x16, 0x6);
+	ret = mv88e6xxx_phy_write(chip, 0x0, 0x16, 0x6);
 	if (ret < 0)
 		goto error;
 
 	/* Enable temperature sensor */
-	ret = mv88e6xxx_mdio_read_direct(chip, 0x0, 0x1a);
+	ret = mv88e6xxx_phy_read(chip, 0x0, 0x1a, &val);
 	if (ret < 0)
 		goto error;
 
-	ret = mv88e6xxx_mdio_write_direct(chip, 0x0, 0x1a, ret | (1 << 5));
+	ret = mv88e6xxx_phy_write(chip, 0x0, 0x1a, val | (1 << 5));
 	if (ret < 0)
 		goto error;
 
 	/* Wait for temperature to stabilize */
 	usleep_range(10000, 12000);
 
-	val = mv88e6xxx_mdio_read_direct(chip, 0x0, 0x1a);
-	if (val < 0) {
-		ret = val;
+	ret = mv88e6xxx_phy_read(chip, 0x0, 0x1a, &val);
+	if (ret < 0)
 		goto error;
-	}
 
 	/* Disable temperature sensor */
-	ret = mv88e6xxx_mdio_write_direct(chip, 0x0, 0x1a, ret & ~(1 << 5));
+	ret = mv88e6xxx_phy_write(chip, 0x0, 0x1a, val & ~(1 << 5));
 	if (ret < 0)
 		goto error;
 
 	*temp = ((val & 0x1f) - 5) * 5;
 
 error:
-	mv88e6xxx_mdio_write_direct(chip, 0x0, 0x16, 0x0);
+	mv88e6xxx_phy_write(chip, 0x0, 0x16, 0x0);
 	mutex_unlock(&chip->reg_lock);
 	return ret;
 }
@@ -3382,15 +3374,18 @@ static int mv88e63xx_get_temp(struct dsa_switch *ds, int *temp)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
 	int phy = mv88e6xxx_6320_family(chip) ? 3 : 0;
+	u16 val;
 	int ret;
 
 	*temp = 0;
 
-	ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 27);
+	mutex_lock(&chip->reg_lock);
+	ret = mv88e6xxx_phy_page_read(chip, phy, 6, 27, &val);
+	mutex_unlock(&chip->reg_lock);
 	if (ret < 0)
 		return ret;
 
-	*temp = (ret & 0xff) - 25;
+	*temp = (val & 0xff) - 25;
 
 	return 0;
 }
@@ -3412,6 +3407,7 @@ static int mv88e6xxx_get_temp_limit(struct dsa_switch *ds, int *temp)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
 	int phy = mv88e6xxx_6320_family(chip) ? 3 : 0;
+	u16 val;
 	int ret;
 
 	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_TEMP_LIMIT))
@@ -3419,11 +3415,13 @@ static int mv88e6xxx_get_temp_limit(struct dsa_switch *ds, int *temp)
 
 	*temp = 0;
 
-	ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 26);
+	mutex_lock(&chip->reg_lock);
+	ret = mv88e6xxx_phy_page_read(chip, phy, 6, 26, &val);
+	mutex_unlock(&chip->reg_lock);
 	if (ret < 0)
 		return ret;
 
-	*temp = (((ret >> 8) & 0x1f) * 5) - 25;
+	*temp = (((val >> 8) & 0x1f) * 5) - 25;
 
 	return 0;
 }
@@ -3432,23 +3430,30 @@ static int mv88e6xxx_set_temp_limit(struct dsa_switch *ds, int temp)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
 	int phy = mv88e6xxx_6320_family(chip) ? 3 : 0;
-	int ret;
+	u16 val;
+	int err;
 
 	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_TEMP_LIMIT))
 		return -EOPNOTSUPP;
 
-	ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 26);
-	if (ret < 0)
-		return ret;
+	mutex_lock(&chip->reg_lock);
+	err = mv88e6xxx_phy_page_read(chip, phy, 6, 26, &val);
+	if (err)
+		goto unlock;
 	temp = clamp_val(DIV_ROUND_CLOSEST(temp, 5) + 5, 0, 0x1f);
-	return mv88e6xxx_mdio_page_write(ds, phy, 6, 26,
-					 (ret & 0xe0ff) | (temp << 8));
+	err = mv88e6xxx_phy_page_write(chip, phy, 6, 26,
+				       (val & 0xe0ff) | (temp << 8));
+unlock:
+	mutex_unlock(&chip->reg_lock);
+
+	return err;
 }
 
 static int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm)
 {
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
 	int phy = mv88e6xxx_6320_family(chip) ? 3 : 0;
+	u16 val;
 	int ret;
 
 	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_TEMP_LIMIT))
@@ -3456,11 +3461,13 @@ static int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm)
 
 	*alarm = false;
 
-	ret = mv88e6xxx_mdio_page_read(ds, phy, 6, 26);
+	mutex_lock(&chip->reg_lock);
+	ret = mv88e6xxx_phy_page_read(chip, phy, 6, 26, &val);
+	mutex_unlock(&chip->reg_lock);
 	if (ret < 0)
 		return ret;
 
-	*alarm = !!(ret & 0x40);
+	*alarm = !!(val & 0x40);
 
 	return 0;
 }
@@ -3877,6 +3884,30 @@ static struct mv88e6xxx_chip *mv88e6xxx_alloc_chip(struct device *dev)
 	return chip;
 }
 
+static const struct mv88e6xxx_ops mv88e6xxx_phy_ops = {
+	.read = mv88e6xxx_read,
+	.write = mv88e6xxx_write,
+};
+
+static void mv88e6xxx_phy_init(struct mv88e6xxx_chip *chip)
+{
+	if (mv88e6xxx_has(chip, MV88E6XXX_FLAGS_SMI_PHY)) {
+		chip->phy_ops = &mv88e6xxx_g2_smi_phy_ops;
+	} else if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU)) {
+		chip->phy_ops = &mv88e6xxx_phy_ppu_ops;
+		mv88e6xxx_ppu_state_init(chip);
+	} else {
+		chip->phy_ops = &mv88e6xxx_phy_ops;
+	}
+}
+
+static void mv88e6xxx_phy_destroy(struct mv88e6xxx_chip *chip)
+{
+	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_PPU)) {
+		mv88e6xxx_ppu_state_destroy(chip);
+	}
+}
+
 static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
 			      struct mii_bus *bus, int sw_addr)
 {
@@ -3886,7 +3917,7 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
 
 	if (sw_addr == 0)
 		chip->smi_ops = &mv88e6xxx_smi_single_chip_ops;
-	else if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_MULTI_CHIP))
+	else if (mv88e6xxx_has(chip, MV88E6XXX_FLAGS_MULTI_CHIP))
 		chip->smi_ops = &mv88e6xxx_smi_multi_chip_ops;
 	else
 		return -EINVAL;
@@ -3897,6 +3928,16 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
 	return 0;
 }
 
+static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
+
+	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_EDSA))
+		return DSA_TAG_PROTO_EDSA;
+
+	return DSA_TAG_PROTO_DSA;
+}
+
 static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
 				       struct device *host_dev, int sw_addr,
 				       void **priv)
@@ -3924,6 +3965,8 @@ static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
 	if (err)
 		goto free;
 
+	mv88e6xxx_phy_init(chip);
+
 	err = mv88e6xxx_mdio_register(chip, NULL);
 	if (err)
 		goto free;
@@ -3937,9 +3980,9 @@ free:
 	return NULL;
 }
 
-static struct dsa_switch_driver mv88e6xxx_switch_driver = {
-	.tag_protocol		= DSA_TAG_PROTO_EDSA,
+static struct dsa_switch_ops mv88e6xxx_switch_ops = {
 	.probe			= mv88e6xxx_drv_probe,
+	.get_tag_protocol	= mv88e6xxx_get_tag_protocol,
 	.setup			= mv88e6xxx_setup,
 	.set_addr		= mv88e6xxx_set_addr,
 	.adjust_link		= mv88e6xxx_adjust_link,
@@ -3986,7 +4029,7 @@ static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip,
 
 	ds->dev = dev;
 	ds->priv = chip;
-	ds->drv = &mv88e6xxx_switch_driver;
+	ds->ops = &mv88e6xxx_switch_ops;
 
 	dev_set_drvdata(dev, ds);
 
@@ -4025,6 +4068,8 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
 	if (err)
 		return err;
 
+	mv88e6xxx_phy_init(chip);
+
 	chip->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS);
 	if (IS_ERR(chip->reset))
 		return PTR_ERR(chip->reset);
@@ -4051,6 +4096,7 @@ static void mv88e6xxx_remove(struct mdio_device *mdiodev)
 	struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
 	struct mv88e6xxx_chip *chip = ds_to_priv(ds);
 
+	mv88e6xxx_phy_destroy(chip);
 	mv88e6xxx_unregister_switch(chip);
 	mv88e6xxx_mdio_unregister(chip);
 }
@@ -4076,7 +4122,7 @@ static struct mdio_driver mv88e6xxx_driver = {
 
 static int __init mv88e6xxx_init(void)
 {
-	register_switch_driver(&mv88e6xxx_switch_driver);
+	register_switch_driver(&mv88e6xxx_switch_ops);
 	return mdio_driver_register(&mv88e6xxx_driver);
 }
 module_init(mv88e6xxx_init);
@@ -4084,7 +4130,7 @@ module_init(mv88e6xxx_init);
 static void __exit mv88e6xxx_cleanup(void)
 {
 	mdio_driver_unregister(&mv88e6xxx_driver);
-	unregister_switch_driver(&mv88e6xxx_switch_driver);
+	unregister_switch_driver(&mv88e6xxx_switch_ops);
 }
 module_exit(mv88e6xxx_cleanup);