diff --git a/mt7603/core.c b/mt7603/core.c
index bc094de6..4ef6765c 100644
--- a/mt7603/core.c
+++ b/mt7603/core.c
@@ -81,7 +81,7 @@ u32 mt7603_reg_map(struct mt7603_dev *dev, u32 addr)
 	u32 base = addr & GENMASK(31, 19);
 	u32 offset = addr & GENMASK(18, 0);
 
-	mt76_wr(dev, MT_MCU_PCIE_REMAP_2, base);
+	dev->bus_ops->wr(&dev->mt76, MT_MCU_PCIE_REMAP_2, base);
 
 	return MT_PCIE_REMAP_BASE_2 + offset;
 }
diff --git a/mt7603/init.c b/mt7603/init.c
index 5c19f82f..e0bc97be 100644
--- a/mt7603/init.c
+++ b/mt7603/init.c
@@ -417,12 +417,56 @@ static void mt7603_led_set_brightness(struct led_classdev *led_cdev,
 		mt7603_led_set_config(mt76, 0xff, 0);
 }
 
+static u32 __mt7603_reg_addr(struct mt7603_dev *dev, u32 addr)
+{
+	if (addr < 0x100000)
+		return addr;
+
+	return mt7603_reg_map(dev, addr);
+}
+
+static u32 mt7603_rr(struct mt76_dev *mdev, u32 offset)
+{
+	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
+	u32 addr = __mt7603_reg_addr(dev, offset);
+
+	return dev->bus_ops->rr(mdev, addr);
+}
+
+static void mt7603_wr(struct mt76_dev *mdev, u32 offset, u32 val)
+{
+	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
+	u32 addr = __mt7603_reg_addr(dev, offset);
+
+	dev->bus_ops->wr(mdev, addr, val);
+}
+
+static u32 mt7603_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
+{
+	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
+	u32 addr = __mt7603_reg_addr(dev, offset);
+
+	return dev->bus_ops->rmw(mdev, addr, mask, val);
+}
+
 int mt7603_register_device(struct mt7603_dev *dev)
 {
+	struct mt76_bus_ops *bus_ops;
 	struct ieee80211_hw *hw = mt76_hw(dev);
 	struct wiphy *wiphy = hw->wiphy;
 	int ret;
 
+	dev->bus_ops = dev->mt76.bus;
+	bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
+			       GFP_KERNEL);
+	if (!bus_ops)
+		return -ENOMEM;
+
+	bus_ops->rr = mt7603_rr;
+	bus_ops->wr = mt7603_wr;
+	bus_ops->rmw = mt7603_rmw;
+	dev->mt76.bus = bus_ops;
+
 	INIT_DELAYED_WORK(&dev->mac_work, mt7603_mac_work);
 	tasklet_init(&dev->pre_tbtt_tasklet, mt7603_pre_tbtt_tasklet,
 		     (unsigned long)dev);
diff --git a/mt7603/mt7603.h b/mt7603/mt7603.h
index 5af35566..2ce102a6 100644
--- a/mt7603/mt7603.h
+++ b/mt7603/mt7603.h
@@ -95,6 +95,8 @@ enum mt7603_reset_cause {
 struct mt7603_dev {
 	struct mt76_dev mt76; /* must be first */
 
+	const struct mt76_bus_ops *bus_ops;
+
 	u32 rxfilter;
 
 	u8 vif_mask;