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path: root/drivers/net/dsa/mt7530.c
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Diffstat (limited to 'drivers/net/dsa/mt7530.c')
-rw-r--r--drivers/net/dsa/mt7530.c82
1 files changed, 53 insertions, 29 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 2b02d823d497..835807911be0 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1038,6 +1038,7 @@ static int
 mt7530_port_enable(struct dsa_switch *ds, int port,
 		   struct phy_device *phy)
 {
+	struct dsa_port *dp = dsa_to_port(ds, port);
 	struct mt7530_priv *priv = ds->priv;
 
 	mutex_lock(&priv->reg_mutex);
@@ -1046,7 +1047,11 @@ mt7530_port_enable(struct dsa_switch *ds, int port,
 	 * restore the port matrix if the port is the member of a certain
 	 * bridge.
 	 */
-	priv->ports[port].pm |= PCR_MATRIX(BIT(MT7530_CPU_PORT));
+	if (dsa_port_is_user(dp)) {
+		struct dsa_port *cpu_dp = dp->cpu_dp;
+
+		priv->ports[port].pm |= PCR_MATRIX(BIT(cpu_dp->index));
+	}
 	priv->ports[port].enable = true;
 	mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
 		   priv->ports[port].pm);
@@ -1195,7 +1200,8 @@ mt7530_port_bridge_join(struct dsa_switch *ds, int port,
 			struct netlink_ext_ack *extack)
 {
 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
-	u32 port_bitmap = BIT(MT7530_CPU_PORT);
+	struct dsa_port *cpu_dp = dp->cpu_dp;
+	u32 port_bitmap = BIT(cpu_dp->index);
 	struct mt7530_priv *priv = ds->priv;
 
 	mutex_lock(&priv->reg_mutex);
@@ -1272,9 +1278,12 @@ mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port)
 	 * the CPU port get out of VLAN filtering mode.
 	 */
 	if (all_user_ports_removed) {
-		mt7530_write(priv, MT7530_PCR_P(MT7530_CPU_PORT),
+		struct dsa_port *dp = dsa_to_port(ds, port);
+		struct dsa_port *cpu_dp = dp->cpu_dp;
+
+		mt7530_write(priv, MT7530_PCR_P(cpu_dp->index),
 			     PCR_MATRIX(dsa_user_ports(priv->ds)));
-		mt7530_write(priv, MT7530_PVC_P(MT7530_CPU_PORT), PORT_SPEC_TAG
+		mt7530_write(priv, MT7530_PVC_P(cpu_dp->index), PORT_SPEC_TAG
 			     | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
 	}
 }
@@ -1312,6 +1321,7 @@ mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
 			 struct dsa_bridge bridge)
 {
 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
+	struct dsa_port *cpu_dp = dp->cpu_dp;
 	struct mt7530_priv *priv = ds->priv;
 
 	mutex_lock(&priv->reg_mutex);
@@ -1340,8 +1350,8 @@ mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
 	 */
 	if (priv->ports[port].enable)
 		mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
-			   PCR_MATRIX(BIT(MT7530_CPU_PORT)));
-	priv->ports[port].pm = PCR_MATRIX(BIT(MT7530_CPU_PORT));
+			   PCR_MATRIX(BIT(cpu_dp->index)));
+	priv->ports[port].pm = PCR_MATRIX(BIT(cpu_dp->index));
 
 	/* When a port is removed from the bridge, the port would be set up
 	 * back to the default as is at initial boot which is a VLAN-unaware
@@ -1508,6 +1518,9 @@ static int
 mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
 			   struct netlink_ext_ack *extack)
 {
+	struct dsa_port *dp = dsa_to_port(ds, port);
+	struct dsa_port *cpu_dp = dp->cpu_dp;
+
 	if (vlan_filtering) {
 		/* The port is being kept as VLAN-unaware port when bridge is
 		 * set up with vlan_filtering not being set, Otherwise, the
@@ -1515,7 +1528,7 @@ mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
 		 * for becoming a VLAN-aware port.
 		 */
 		mt7530_port_set_vlan_aware(ds, port);
-		mt7530_port_set_vlan_aware(ds, MT7530_CPU_PORT);
+		mt7530_port_set_vlan_aware(ds, cpu_dp->index);
 	} else {
 		mt7530_port_set_vlan_unaware(ds, port);
 	}
@@ -1527,11 +1540,11 @@ static void
 mt7530_hw_vlan_add(struct mt7530_priv *priv,
 		   struct mt7530_hw_vlan_entry *entry)
 {
+	struct dsa_port *dp = dsa_to_port(priv->ds, entry->port);
 	u8 new_members;
 	u32 val;
 
-	new_members = entry->old_members | BIT(entry->port) |
-		      BIT(MT7530_CPU_PORT);
+	new_members = entry->old_members | BIT(entry->port);
 
 	/* Validate the entry with independent learning, create egress tag per
 	 * VLAN and joining the port as one of the port members.
@@ -1542,22 +1555,20 @@ mt7530_hw_vlan_add(struct mt7530_priv *priv,
 
 	/* Decide whether adding tag or not for those outgoing packets from the
 	 * port inside the VLAN.
-	 */
-	val = entry->untagged ? MT7530_VLAN_EGRESS_UNTAG :
-				MT7530_VLAN_EGRESS_TAG;
-	mt7530_rmw(priv, MT7530_VAWD2,
-		   ETAG_CTRL_P_MASK(entry->port),
-		   ETAG_CTRL_P(entry->port, val));
-
-	/* CPU port is always taken as a tagged port for serving more than one
+	 * CPU port is always taken as a tagged port for serving more than one
 	 * VLANs across and also being applied with egress type stack mode for
 	 * that VLAN tags would be appended after hardware special tag used as
 	 * DSA tag.
 	 */
+	if (dsa_port_is_cpu(dp))
+		val = MT7530_VLAN_EGRESS_STACK;
+	else if (entry->untagged)
+		val = MT7530_VLAN_EGRESS_UNTAG;
+	else
+		val = MT7530_VLAN_EGRESS_TAG;
 	mt7530_rmw(priv, MT7530_VAWD2,
-		   ETAG_CTRL_P_MASK(MT7530_CPU_PORT),
-		   ETAG_CTRL_P(MT7530_CPU_PORT,
-			       MT7530_VLAN_EGRESS_STACK));
+		   ETAG_CTRL_P_MASK(entry->port),
+		   ETAG_CTRL_P(entry->port, val));
 }
 
 static void
@@ -1576,11 +1587,7 @@ mt7530_hw_vlan_del(struct mt7530_priv *priv,
 		return;
 	}
 
-	/* If certain member apart from CPU port is still alive in the VLAN,
-	 * the entry would be kept valid. Otherwise, the entry is got to be
-	 * disabled.
-	 */
-	if (new_members && new_members != BIT(MT7530_CPU_PORT)) {
+	if (new_members) {
 		val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) |
 		      VLAN_VALID;
 		mt7530_write(priv, MT7530_VAWD1, val);
@@ -2098,11 +2105,12 @@ static int
 mt7530_setup(struct dsa_switch *ds)
 {
 	struct mt7530_priv *priv = ds->priv;
+	struct device_node *dn = NULL;
 	struct device_node *phy_node;
 	struct device_node *mac_np;
 	struct mt7530_dummy_poll p;
 	phy_interface_t interface;
-	struct device_node *dn;
+	struct dsa_port *cpu_dp;
 	u32 id, val;
 	int ret, i;
 
@@ -2110,7 +2118,19 @@ mt7530_setup(struct dsa_switch *ds)
 	 * controller also is the container for two GMACs nodes representing
 	 * as two netdev instances.
 	 */
-	dn = dsa_to_port(ds, MT7530_CPU_PORT)->master->dev.of_node->parent;
+	dsa_switch_for_each_cpu_port(cpu_dp, ds) {
+		dn = cpu_dp->master->dev.of_node->parent;
+		/* It doesn't matter which CPU port is found first,
+		 * their masters should share the same parent OF node
+		 */
+		break;
+	}
+
+	if (!dn) {
+		dev_err(ds->dev, "parent OF node of DSA master not found");
+		return -EINVAL;
+	}
+
 	ds->assisted_learning_on_cpu_port = true;
 	ds->mtu_enforcement_ingress = true;
 
@@ -2272,6 +2292,7 @@ mt7531_setup(struct dsa_switch *ds)
 {
 	struct mt7530_priv *priv = ds->priv;
 	struct mt7530_dummy_poll p;
+	struct dsa_port *cpu_dp;
 	u32 val, id;
 	int ret, i;
 
@@ -2344,8 +2365,11 @@ mt7531_setup(struct dsa_switch *ds)
 				 CORE_PLL_GROUP4, val);
 
 	/* BPDU to CPU port */
-	mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK,
-		   BIT(MT7530_CPU_PORT));
+	dsa_switch_for_each_cpu_port(cpu_dp, ds) {
+		mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK,
+			   BIT(cpu_dp->index));
+		break;
+	}
 	mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK,
 		   MT753X_BPDU_CPU_ONLY);