diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c
index 0d9e63541..b33ab3b97 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c
+++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c
@@ -225,6 +225,9 @@ struct mt7530_priv {
 	struct mii_bus		*bus;
 	struct switch_dev	swdev;
 
+	/* protect among processes for registers access*/
+	struct mutex reg_mutex;
+
 	u8			mirror_dest_port;
 	bool			global_vlan_enable;
 	struct mt7530_vlan_entry	vlan_entries[MT7530_NUM_VLANS];
@@ -399,9 +402,13 @@ mt7530_get_port_pvid(struct switch_dev *dev, int port, int *val)
 	if (port >= MT7530_NUM_PORTS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	*val = mt7530_r32(priv, REG_ESW_PORT_PPBV1(port));
 	*val &= 0xfff;
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -434,6 +441,8 @@ mt7530_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
 	if (val->port_vlan < 0 || val->port_vlan >= MT7530_NUM_VLANS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	mt7530_vtcr(priv, 0, val->port_vlan);
 
 	member = mt7530_r32(priv, REG_ESW_VLAN_VAWD1);
@@ -461,6 +470,8 @@ mt7530_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
 					val->port_vlan, i, etag);
 	}
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -530,6 +541,8 @@ mt7530_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
 	u32 vid;
 	int vlan;
 
+	mutex_lock(&priv->reg_mutex);
+
 	vlan = val->port_vlan;
 
 	vid = mt7530_r32(priv, REG_ESW_VLAN_VTIM(vlan));
@@ -538,6 +551,9 @@ mt7530_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
 	vid &= 0xfff;
 
 	val->value.i = vid;
+
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -662,6 +678,8 @@ mt7530_apply_config(struct switch_dev *dev)
 	u8 untag_ports;
 	bool is_mirror = false;
 
+	mutex_lock(&priv->reg_mutex);
+
 	if (!priv->global_vlan_enable) {
 		for (i = 0; i < MT7530_NUM_PORTS; i++)
 			mt7530_w32(priv, REG_ESW_PORT_PCR(i), 0x00400000);
@@ -671,6 +689,7 @@ mt7530_apply_config(struct switch_dev *dev)
 		for (i = 0; i < MT7530_NUM_PORTS; i++)
 			mt7530_w32(priv, REG_ESW_PORT_PVC(i), 0x810000c0);
 
+		mutex_unlock(&priv->reg_mutex);
 		return 0;
 	}
 
@@ -765,6 +784,8 @@ mt7530_apply_config(struct switch_dev *dev)
 		mt7530_w32(priv, REG_ESW_WT_MAC_MFC, val);
 	}
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -778,6 +799,8 @@ mt7530_get_port_link(struct switch_dev *dev,  int port,
 	if (port < 0 || port >= MT7530_NUM_PORTS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	pmsr = mt7530_r32(priv, 0x3008 + (0x100 * port));
 
 	link->link = pmsr & 1;
@@ -800,6 +823,8 @@ mt7530_get_port_link(struct switch_dev *dev,  int port,
 		break;
 	}
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -833,6 +858,8 @@ static int mt7621_sw_get_port_mib(struct switch_dev *dev,
 	if (val->port_vlan >= MT7530_NUM_PORTS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	len += snprintf(buf + len, sizeof(buf) - len,
 			"Port %d MIB counters\n", val->port_vlan);
 
@@ -847,6 +874,9 @@ static int mt7621_sw_get_port_mib(struct switch_dev *dev,
 
 	val->value.s = buf;
 	val->len = len;
+
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -871,6 +901,8 @@ static int mt7530_sw_get_mib(struct switch_dev *dev,
 	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
 	int i, len = 0;
 
+	mutex_lock(&priv->reg_mutex);
+
 	len += snprintf(buf + len, sizeof(buf) - len, "Switch MIB counters\n");
 
 	for (i = 0; i < ARRAY_SIZE(mt7620_mibs); ++i) {
@@ -884,6 +916,9 @@ static int mt7530_sw_get_mib(struct switch_dev *dev,
 
 	val->value.s = buf;
 	val->len = len;
+
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -932,6 +967,8 @@ static int mt7530_get_arl_table(struct switch_dev *dev,
 	int ret;
 	u32 atc;
 
+	mutex_lock(&priv->reg_mutex);
+
 	ret = snprintf(buf, size, "address resolution table\n");
 	if (ret >= size || ret <= 0) {
 		priv->arl_buf[0] = 0;
@@ -978,6 +1015,8 @@ out:
 	val->value.s = priv->arl_buf;
 	val->len = strlen(priv->arl_buf);
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -992,6 +1031,8 @@ static int mt7530_sw_get_port_mib(struct switch_dev *dev,
 	if (val->port_vlan >= MT7530_NUM_PORTS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	len += snprintf(buf + len, sizeof(buf) - len,
 			"Port %d MIB counters\n", val->port_vlan);
 
@@ -1006,6 +1047,9 @@ static int mt7530_sw_get_port_mib(struct switch_dev *dev,
 
 	val->value.s = buf;
 	val->len = len;
+
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -1017,9 +1061,13 @@ static int mt7530_get_port_stats(struct switch_dev *dev, int port,
 	if (port < 0 || port >= MT7530_NUM_PORTS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	stats->tx_bytes = get_mib_counter_port_7620(priv, MT7530_PORT_MIB_TXB_ID, port);
 	stats->rx_bytes = get_mib_counter_port_7620(priv, MT7530_PORT_MIB_RXB_ID, port);
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -1031,9 +1079,13 @@ static int mt7621_get_port_stats(struct switch_dev *dev, int port,
 	if (port < 0 || port >= MT7530_NUM_PORTS)
 		return -EINVAL;
 
+	mutex_lock(&priv->reg_mutex);
+
 	stats->tx_bytes = get_mib_counter(priv, MT7621_PORT_MIB_TXB_ID, port);
 	stats->rx_bytes = get_mib_counter(priv, MT7621_PORT_MIB_RXB_ID, port);
 
+	mutex_unlock(&priv->reg_mutex);
+
 	return 0;
 }
 
@@ -1201,6 +1253,8 @@ mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vl
 	mt7530->bus = bus;
 	mt7530->global_vlan_enable = vlan;
 
+	mutex_init(&mt7530->reg_mutex);
+
 	swdev = &mt7530->swdev;
 	if (bus) {
 		swdev->alias = "mt7530";
@@ -1223,10 +1277,10 @@ mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vl
 	ret = register_switch(swdev, NULL);
 	if (ret) {
 		dev_err(dev, "failed to register mt7530\n");
+		mutex_destroy(&mt7530->reg_mutex);
 		return ret;
 	}
 
-
 	map = mt7530_find_mapping(dev->of_node);
 	if (map)
 		mt7530_apply_mapping(mt7530, map);