1 files changed, 218 insertions, 199 deletions

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 0a5d6c7bb128..08a46ffd53af 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -611,10 +611,10 @@ static void mv88e6185_phylink_get_caps(struct mv88e6xxx_chip *chip, int port,
 }
 
 static const u8 mv88e6xxx_phy_interface_modes[] = {
-	[MV88E6XXX_PORT_STS_CMODE_MII_PHY]	= PHY_INTERFACE_MODE_MII,
+	[MV88E6XXX_PORT_STS_CMODE_MII_PHY]	= PHY_INTERFACE_MODE_REVMII,
 	[MV88E6XXX_PORT_STS_CMODE_MII]		= PHY_INTERFACE_MODE_MII,
 	[MV88E6XXX_PORT_STS_CMODE_GMII]		= PHY_INTERFACE_MODE_GMII,
-	[MV88E6XXX_PORT_STS_CMODE_RMII_PHY]	= PHY_INTERFACE_MODE_RMII,
+	[MV88E6XXX_PORT_STS_CMODE_RMII_PHY]	= PHY_INTERFACE_MODE_REVRMII,
 	[MV88E6XXX_PORT_STS_CMODE_RMII]		= PHY_INTERFACE_MODE_RMII,
 	[MV88E6XXX_PORT_STS_CMODE_100BASEX]	= PHY_INTERFACE_MODE_100BASEX,
 	[MV88E6XXX_PORT_STS_CMODE_1000BASEX]	= PHY_INTERFACE_MODE_1000BASEX,
@@ -3354,9 +3354,14 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 	 * If this is the upstream port for this switch, enable
 	 * forwarding of unknown unicasts and multicasts.
 	 */
-	reg = MV88E6XXX_PORT_CTL0_IGMP_MLD_SNOOP |
-		MV88E6185_PORT_CTL0_USE_TAG | MV88E6185_PORT_CTL0_USE_IP |
+	reg = MV88E6185_PORT_CTL0_USE_TAG | MV88E6185_PORT_CTL0_USE_IP |
 		MV88E6XXX_PORT_CTL0_STATE_FORWARDING;
+	/* Forward any IPv4 IGMP or IPv6 MLD frames received
+	 * by a USER port to the CPU port to allow snooping.
+	 */
+	if (dsa_is_user_port(ds, port))
+		reg |= MV88E6XXX_PORT_CTL0_IGMP_MLD_SNOOP;
+
 	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
 	if (err)
 		return err;
@@ -3549,7 +3554,7 @@ static int mv88e6xxx_get_max_mtu(struct dsa_switch *ds, int port)
 		return 10240 - VLAN_ETH_HLEN - EDSA_HLEN - ETH_FCS_LEN;
 	else if (chip->info->ops->set_max_frame_size)
 		return 1632 - VLAN_ETH_HLEN - EDSA_HLEN - ETH_FCS_LEN;
-	return 1522 - VLAN_ETH_HLEN - EDSA_HLEN - ETH_FCS_LEN;
+	return ETH_DATA_LEN;
 }
 
 static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
@@ -3557,6 +3562,17 @@ static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int ret = 0;
 
+	/* For families where we don't know how to alter the MTU,
+	 * just accept any value up to ETH_DATA_LEN
+	 */
+	if (!chip->info->ops->port_set_jumbo_size &&
+	    !chip->info->ops->set_max_frame_size) {
+		if (new_mtu > ETH_DATA_LEN)
+			return -EINVAL;
+
+		return 0;
+	}
+
 	if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
 		new_mtu += EDSA_HLEN;
 
@@ -3565,9 +3581,6 @@ static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 		ret = chip->info->ops->port_set_jumbo_size(chip, port, new_mtu);
 	else if (chip->info->ops->set_max_frame_size)
 		ret = chip->info->ops->set_max_frame_size(chip, new_mtu);
-	else
-		if (new_mtu > 1522)
-			ret = -EINVAL;
 	mv88e6xxx_reg_unlock(chip);
 
 	return ret;
@@ -3672,185 +3685,6 @@ static int mv88e6390_setup_errata(struct mv88e6xxx_chip *chip)
 	return mv88e6xxx_software_reset(chip);
 }
 
-static void mv88e6xxx_teardown(struct dsa_switch *ds)
-{
-	mv88e6xxx_teardown_devlink_params(ds);
-	dsa_devlink_resources_unregister(ds);
-	mv88e6xxx_teardown_devlink_regions_global(ds);
-}
-
-static int mv88e6xxx_setup(struct dsa_switch *ds)
-{
-	struct mv88e6xxx_chip *chip = ds->priv;
-	u8 cmode;
-	int err;
-	int i;
-
-	chip->ds = ds;
-	ds->slave_mii_bus = mv88e6xxx_default_mdio_bus(chip);
-
-	/* Since virtual bridges are mapped in the PVT, the number we support
-	 * depends on the physical switch topology. We need to let DSA figure
-	 * that out and therefore we cannot set this at dsa_register_switch()
-	 * time.
-	 */
-	if (mv88e6xxx_has_pvt(chip))
-		ds->max_num_bridges = MV88E6XXX_MAX_PVT_SWITCHES -
-				      ds->dst->last_switch - 1;
-
-	mv88e6xxx_reg_lock(chip);
-
-	if (chip->info->ops->setup_errata) {
-		err = chip->info->ops->setup_errata(chip);
-		if (err)
-			goto unlock;
-	}
-
-	/* Cache the cmode of each port. */
-	for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
-		if (chip->info->ops->port_get_cmode) {
-			err = chip->info->ops->port_get_cmode(chip, i, &cmode);
-			if (err)
-				goto unlock;
-
-			chip->ports[i].cmode = cmode;
-		}
-	}
-
-	err = mv88e6xxx_vtu_setup(chip);
-	if (err)
-		goto unlock;
-
-	/* Must be called after mv88e6xxx_vtu_setup (which flushes the
-	 * VTU, thereby also flushing the STU).
-	 */
-	err = mv88e6xxx_stu_setup(chip);
-	if (err)
-		goto unlock;
-
-	/* Setup Switch Port Registers */
-	for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
-		if (dsa_is_unused_port(ds, i))
-			continue;
-
-		/* Prevent the use of an invalid port. */
-		if (mv88e6xxx_is_invalid_port(chip, i)) {
-			dev_err(chip->dev, "port %d is invalid\n", i);
-			err = -EINVAL;
-			goto unlock;
-		}
-
-		err = mv88e6xxx_setup_port(chip, i);
-		if (err)
-			goto unlock;
-	}
-
-	err = mv88e6xxx_irl_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_mac_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_phy_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_pvt_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_atu_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_broadcast_setup(chip, 0);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_pot_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_rmu_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_rsvd2cpu_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_trunk_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_devmap_setup(chip);
-	if (err)
-		goto unlock;
-
-	err = mv88e6xxx_pri_setup(chip);
-	if (err)
-		goto unlock;
-
-	/* Setup PTP Hardware Clock and timestamping */
-	if (chip->info->ptp_support) {
-		err = mv88e6xxx_ptp_setup(chip);
-		if (err)
-			goto unlock;
-
-		err = mv88e6xxx_hwtstamp_setup(chip);
-		if (err)
-			goto unlock;
-	}
-
-	err = mv88e6xxx_stats_setup(chip);
-	if (err)
-		goto unlock;
-
-unlock:
-	mv88e6xxx_reg_unlock(chip);
-
-	if (err)
-		return err;
-
-	/* Have to be called without holding the register lock, since
-	 * they take the devlink lock, and we later take the locks in
-	 * the reverse order when getting/setting parameters or
-	 * resource occupancy.
-	 */
-	err = mv88e6xxx_setup_devlink_resources(ds);
-	if (err)
-		return err;
-
-	err = mv88e6xxx_setup_devlink_params(ds);
-	if (err)
-		goto out_resources;
-
-	err = mv88e6xxx_setup_devlink_regions_global(ds);
-	if (err)
-		goto out_params;
-
-	return 0;
-
-out_params:
-	mv88e6xxx_teardown_devlink_params(ds);
-out_resources:
-	dsa_devlink_resources_unregister(ds);
-
-	return err;
-}
-
-static int mv88e6xxx_port_setup(struct dsa_switch *ds, int port)
-{
-	return mv88e6xxx_setup_devlink_regions_port(ds, port);
-}
-
-static void mv88e6xxx_port_teardown(struct dsa_switch *ds, int port)
-{
-	mv88e6xxx_teardown_devlink_regions_port(ds, port);
-}
-
 /* prod_id for switch families which do not have a PHY model number */
 static const u16 family_prod_id_table[] = {
 	[MV88E6XXX_FAMILY_6341] = MV88E6XXX_PORT_SWITCH_ID_PROD_6341,
@@ -3976,6 +3810,9 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 	bus->read_c45 = mv88e6xxx_mdio_read_c45;
 	bus->write_c45 = mv88e6xxx_mdio_write_c45;
 	bus->parent = chip->dev;
+	bus->phy_mask = ~GENMASK(chip->info->phy_base_addr +
+				 mv88e6xxx_num_ports(chip) - 1,
+				 chip->info->phy_base_addr);
 
 	if (!external) {
 		err = mv88e6xxx_g2_irq_mdio_setup(chip, bus);
@@ -4019,9 +3856,9 @@ static void mv88e6xxx_mdios_unregister(struct mv88e6xxx_chip *chip)
 	}
 }
 
-static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip,
-				    struct device_node *np)
+static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip)
 {
+	struct device_node *np = chip->dev->of_node;
 	struct device_node *child;
 	int err;
 
@@ -4054,6 +3891,194 @@ static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip,
 	return 0;
 }
 
+static void mv88e6xxx_teardown(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_chip *chip = ds->priv;
+
+	mv88e6xxx_teardown_devlink_params(ds);
+	dsa_devlink_resources_unregister(ds);
+	mv88e6xxx_teardown_devlink_regions_global(ds);
+	mv88e6xxx_mdios_unregister(chip);
+}
+
+static int mv88e6xxx_setup(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_chip *chip = ds->priv;
+	u8 cmode;
+	int err;
+	int i;
+
+	err = mv88e6xxx_mdios_register(chip);
+	if (err)
+		return err;
+
+	chip->ds = ds;
+	ds->slave_mii_bus = mv88e6xxx_default_mdio_bus(chip);
+
+	/* Since virtual bridges are mapped in the PVT, the number we support
+	 * depends on the physical switch topology. We need to let DSA figure
+	 * that out and therefore we cannot set this at dsa_register_switch()
+	 * time.
+	 */
+	if (mv88e6xxx_has_pvt(chip))
+		ds->max_num_bridges = MV88E6XXX_MAX_PVT_SWITCHES -
+				      ds->dst->last_switch - 1;
+
+	mv88e6xxx_reg_lock(chip);
+
+	if (chip->info->ops->setup_errata) {
+		err = chip->info->ops->setup_errata(chip);
+		if (err)
+			goto unlock;
+	}
+
+	/* Cache the cmode of each port. */
+	for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
+		if (chip->info->ops->port_get_cmode) {
+			err = chip->info->ops->port_get_cmode(chip, i, &cmode);
+			if (err)
+				goto unlock;
+
+			chip->ports[i].cmode = cmode;
+		}
+	}
+
+	err = mv88e6xxx_vtu_setup(chip);
+	if (err)
+		goto unlock;
+
+	/* Must be called after mv88e6xxx_vtu_setup (which flushes the
+	 * VTU, thereby also flushing the STU).
+	 */
+	err = mv88e6xxx_stu_setup(chip);
+	if (err)
+		goto unlock;
+
+	/* Setup Switch Port Registers */
+	for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
+		if (dsa_is_unused_port(ds, i))
+			continue;
+
+		/* Prevent the use of an invalid port. */
+		if (mv88e6xxx_is_invalid_port(chip, i)) {
+			dev_err(chip->dev, "port %d is invalid\n", i);
+			err = -EINVAL;
+			goto unlock;
+		}
+
+		err = mv88e6xxx_setup_port(chip, i);
+		if (err)
+			goto unlock;
+	}
+
+	err = mv88e6xxx_irl_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_mac_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_phy_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_pvt_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_atu_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_broadcast_setup(chip, 0);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_pot_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_rmu_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_rsvd2cpu_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_trunk_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_devmap_setup(chip);
+	if (err)
+		goto unlock;
+
+	err = mv88e6xxx_pri_setup(chip);
+	if (err)
+		goto unlock;
+
+	/* Setup PTP Hardware Clock and timestamping */
+	if (chip->info->ptp_support) {
+		err = mv88e6xxx_ptp_setup(chip);
+		if (err)
+			goto unlock;
+
+		err = mv88e6xxx_hwtstamp_setup(chip);
+		if (err)
+			goto unlock;
+	}
+
+	err = mv88e6xxx_stats_setup(chip);
+	if (err)
+		goto unlock;
+
+unlock:
+	mv88e6xxx_reg_unlock(chip);
+
+	if (err)
+		goto out_mdios;
+
+	/* Have to be called without holding the register lock, since
+	 * they take the devlink lock, and we later take the locks in
+	 * the reverse order when getting/setting parameters or
+	 * resource occupancy.
+	 */
+	err = mv88e6xxx_setup_devlink_resources(ds);
+	if (err)
+		goto out_mdios;
+
+	err = mv88e6xxx_setup_devlink_params(ds);
+	if (err)
+		goto out_resources;
+
+	err = mv88e6xxx_setup_devlink_regions_global(ds);
+	if (err)
+		goto out_params;
+
+	return 0;
+
+out_params:
+	mv88e6xxx_teardown_devlink_params(ds);
+out_resources:
+	dsa_devlink_resources_unregister(ds);
+out_mdios:
+	mv88e6xxx_mdios_unregister(chip);
+
+	return err;
+}
+
+static int mv88e6xxx_port_setup(struct dsa_switch *ds, int port)
+{
+	return mv88e6xxx_setup_devlink_regions_port(ds, port);
+}
+
+static void mv88e6xxx_port_teardown(struct dsa_switch *ds, int port)
+{
+	mv88e6xxx_teardown_devlink_regions_port(ds, port);
+}
+
 static int mv88e6xxx_get_eeprom_len(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
@@ -5169,6 +5194,7 @@ static const struct mv88e6xxx_ops mv88e6321_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6185_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
@@ -5588,7 +5614,7 @@ static const struct mv88e6xxx_ops mv88e6393x_ops = {
 	 * .port_set_upstream_port method.
 	 */
 	.set_egress_port = mv88e6393x_set_egress_port,
-	.watchdog_ops = &mv88e6390_watchdog_ops,
+	.watchdog_ops = &mv88e6393x_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6393x_port_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
@@ -7144,7 +7170,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
 		goto out;
 	}
 	if (chip->reset)
-		usleep_range(1000, 2000);
+		usleep_range(10000, 20000);
 
 	/* Detect if the device is configured in single chip addressing mode,
 	 * otherwise continue with address specific smi init/detection.
@@ -7220,18 +7246,12 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
 	if (err)
 		goto out_g1_atu_prob_irq;
 
-	err = mv88e6xxx_mdios_register(chip, np);
-	if (err)
-		goto out_g1_vtu_prob_irq;
-
 	err = mv88e6xxx_register_switch(chip);
 	if (err)
-		goto out_mdio;
+		goto out_g1_vtu_prob_irq;
 
 	return 0;
 
-out_mdio:
-	mv88e6xxx_mdios_unregister(chip);
 out_g1_vtu_prob_irq:
 	mv88e6xxx_g1_vtu_prob_irq_free(chip);
 out_g1_atu_prob_irq:
@@ -7268,7 +7288,6 @@ static void mv88e6xxx_remove(struct mdio_device *mdiodev)
 
 	mv88e6xxx_phy_destroy(chip);
 	mv88e6xxx_unregister_switch(chip);
-	mv88e6xxx_mdios_unregister(chip);
 
 	mv88e6xxx_g1_vtu_prob_irq_free(chip);
 	mv88e6xxx_g1_atu_prob_irq_free(chip);