diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 6f4ea39ab466..46e12b53a9e4 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4098,6 +4098,7 @@ static const struct mv88e6xxx_ops mv88e6085_ops = {
 	.ppu_disable = mv88e6185_g1_ppu_disable,
 	.reset = mv88e6185_g1_reset,
 	.rmu_disable = mv88e6085_g1_rmu_disable,
+	.rmu_enable = mv88e6085_g1_rmu_enable,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.stu_getnext = mv88e6352_g1_stu_getnext,
@@ -4181,6 +4182,7 @@ static const struct mv88e6xxx_ops mv88e6097_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6085_g1_rmu_disable,
+	.rmu_enable = mv88e6085_g1_rmu_enable,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.phylink_get_caps = mv88e6095_phylink_get_caps,
@@ -5300,6 +5302,7 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6352_g1_rmu_disable,
+	.rmu_enable = mv88e6352_g1_rmu_enable,
 	.atu_get_hash = mv88e6165_g1_atu_get_hash,
 	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
@@ -5367,6 +5370,7 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.rmu_enable = mv88e6390_g1_rmu_enable,
 	.atu_get_hash = mv88e6165_g1_atu_get_hash,
 	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
@@ -5434,6 +5438,7 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.rmu_enable = mv88e6390_g1_rmu_enable,
 	.atu_get_hash = mv88e6165_g1_atu_get_hash,
 	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
@@ -5504,6 +5509,7 @@ static const struct mv88e6xxx_ops mv88e6393x_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.rmu_enable = mv88e6390_g1_rmu_enable,
 	.atu_get_hash = mv88e6165_g1_atu_get_hash,
 	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index e693154cf803..7ce3c41f6caf 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -637,6 +637,7 @@ struct mv88e6xxx_ops {
 
 	/* Remote Management Unit operations */
 	int (*rmu_disable)(struct mv88e6xxx_chip *chip);
+	int (*rmu_enable)(struct mv88e6xxx_chip *chip, int port);
 
 	/* Precision Time Protocol operations */
 	const struct mv88e6xxx_ptp_ops *ptp_ops;
diff --git a/drivers/net/dsa/mv88e6xxx/global1.c b/drivers/net/dsa/mv88e6xxx/global1.c
index 5848112036b0..f6c288ece0ba 100644
--- a/drivers/net/dsa/mv88e6xxx/global1.c
+++ b/drivers/net/dsa/mv88e6xxx/global1.c
@@ -466,18 +466,94 @@ int mv88e6085_g1_rmu_disable(struct mv88e6xxx_chip *chip)
 				      MV88E6085_G1_CTL2_RM_ENABLE, 0);
 }
 
+int mv88e6085_g1_rmu_enable(struct mv88e6xxx_chip *chip, int upstream_port)
+{
+	int val = MV88E6352_G1_CTL2_RMU_MODE_DISABLED;
+
+	dev_dbg(chip->dev, "RMU: Enabling on port %d", upstream_port);
+
+	switch (upstream_port) {
+	case 9:
+		val = MV88E6085_G1_CTL2_RM_ENABLE;
+		break;
+	case 10:
+		val = MV88E6085_G1_CTL2_RM_ENABLE | MV88E6085_G1_CTL2_P10RM;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return mv88e6xxx_g1_ctl2_mask(chip, MV88E6085_G1_CTL2_P10RM |
+				      MV88E6085_G1_CTL2_RM_ENABLE, val);
+}
+
 int mv88e6352_g1_rmu_disable(struct mv88e6xxx_chip *chip)
 {
 	return mv88e6xxx_g1_ctl2_mask(chip, MV88E6352_G1_CTL2_RMU_MODE_MASK,
 				      MV88E6352_G1_CTL2_RMU_MODE_DISABLED);
 }
 
+int mv88e6352_g1_rmu_enable(struct mv88e6xxx_chip *chip, int port)
+{
+	int val = MV88E6352_G1_CTL2_RMU_MODE_DISABLED;
+	int upstream_port;
+
+	upstream_port = dsa_switch_upstream_port(chip->ds);
+	dev_dbg(chip->dev, "RMU: Enabling on port %d", upstream_port);
+	if (upstream_port < 0)
+		return -EOPNOTSUPP;
+
+	switch (upstream_port) {
+	case 4:
+		val = MV88E6352_G1_CTL2_RMU_MODE_PORT_4;
+		break;
+	case 5:
+		val = MV88E6352_G1_CTL2_RMU_MODE_PORT_5;
+		break;
+	case 6:
+		val = MV88E6352_G1_CTL2_RMU_MODE_PORT_6;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return mv88e6xxx_g1_ctl2_mask(chip, MV88E6352_G1_CTL2_RMU_MODE_MASK,
+			val);
+}
+
 int mv88e6390_g1_rmu_disable(struct mv88e6xxx_chip *chip)
 {
 	return mv88e6xxx_g1_ctl2_mask(chip, MV88E6390_G1_CTL2_RMU_MODE_MASK,
 				      MV88E6390_G1_CTL2_RMU_MODE_DISABLED);
 }
 
+int mv88e6390_g1_rmu_enable(struct mv88e6xxx_chip *chip, int upstream_port)
+{
+	int val = MV88E6390_G1_CTL2_RMU_MODE_DISABLED;
+
+	dev_dbg(chip->dev, "RMU: Enabling on port %d", upstream_port);
+
+	switch (upstream_port) {
+	case 0:
+		val = MV88E6390_G1_CTL2_RMU_MODE_PORT_0;
+		break;
+	case 1:
+		val = MV88E6390_G1_CTL2_RMU_MODE_PORT_1;
+		break;
+	case 9:
+		val = MV88E6390_G1_CTL2_RMU_MODE_PORT_9;
+		break;
+	case 10:
+		val = MV88E6390_G1_CTL2_RMU_MODE_PORT_10;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return mv88e6xxx_g1_ctl2_mask(chip, MV88E6390_G1_CTL2_RMU_MODE_MASK,
+			val);
+}
+
 int mv88e6390_g1_stats_set_histogram(struct mv88e6xxx_chip *chip)
 {
 	return mv88e6xxx_g1_ctl2_mask(chip, MV88E6390_G1_CTL2_HIST_MODE_MASK,
diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h
index 65958b2a0d3a..29c0c8acb583 100644
--- a/drivers/net/dsa/mv88e6xxx/global1.h
+++ b/drivers/net/dsa/mv88e6xxx/global1.h
@@ -313,8 +313,11 @@ int mv88e6250_g1_ieee_pri_map(struct mv88e6xxx_chip *chip);
 int mv88e6185_g1_set_cascade_port(struct mv88e6xxx_chip *chip, int port);
 
 int mv88e6085_g1_rmu_disable(struct mv88e6xxx_chip *chip);
+int mv88e6085_g1_rmu_enable(struct mv88e6xxx_chip *chip, int upstream_port);
 int mv88e6352_g1_rmu_disable(struct mv88e6xxx_chip *chip);
+int mv88e6352_g1_rmu_enable(struct mv88e6xxx_chip *chip, int upstream_port);
 int mv88e6390_g1_rmu_disable(struct mv88e6xxx_chip *chip);
+int mv88e6390_g1_rmu_enable(struct mv88e6xxx_chip *chip, int upstream_port);
 
 int mv88e6xxx_g1_set_device_number(struct mv88e6xxx_chip *chip, int index);
 
