diff --git a/mt7603_dma.c b/mt7603_dma.c
index e4fad27d..30b85696 100644
--- a/mt7603_dma.c
+++ b/mt7603_dma.c
@@ -265,7 +265,9 @@ int mt7603_dma_init(struct mt7603_dev *dev)
 
 	mt76_clear(dev, MT_WPDMA_GLO_CFG,
 		   MT_WPDMA_GLO_CFG_TX_DMA_EN |
-		   MT_WPDMA_GLO_CFG_RX_DMA_EN);
+		   MT_WPDMA_GLO_CFG_RX_DMA_EN |
+		   MT_WPDMA_GLO_CFG_DMA_BURST_SIZE |
+		   MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);
 
 	mt76_wr(dev, MT_WPDMA_RST_IDX, ~0);
 
@@ -320,7 +322,8 @@ void mt7603_dma_cleanup(struct mt7603_dev *dev)
 
 	mt76_clear(dev, MT_WPDMA_GLO_CFG,
 		   MT_WPDMA_GLO_CFG_TX_DMA_EN |
-		   MT_WPDMA_GLO_CFG_RX_DMA_EN);
+		   MT_WPDMA_GLO_CFG_RX_DMA_EN |
+		   MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);
 
 	tasklet_kill(&dev->tx_tasklet);
 	tasklet_kill(&dev->rx_tasklet);
diff --git a/mt7603_init.c b/mt7603_init.c
index a280ba32..aab8f067 100644
--- a/mt7603_init.c
+++ b/mt7603_init.c
@@ -70,7 +70,9 @@ mt7603_mac_early_init(struct mt7603_dev *dev)
 
 	mt76_set(dev, MT_WPDMA_GLO_CFG,
 		 (MT_WPDMA_GLO_CFG_TX_DMA_EN |
-		  MT_WPDMA_GLO_CFG_RX_DMA_EN));
+		  MT_WPDMA_GLO_CFG_RX_DMA_EN |
+		  MT76_SET(MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 3) |
+		  MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE));
 
 	mt7603_irq_enable(dev, MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL);