diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 16e67c18b6f7..267f9a7913ac 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -29,11 +29,13 @@
 /* Synopsys Core versions */
 #define	DWMAC_CORE_3_40		0x34
 #define	DWMAC_CORE_3_50		0x35
+#define	DWMAC_CORE_3_70		0x37
 #define	DWMAC_CORE_4_00		0x40
 #define DWMAC_CORE_4_10		0x41
 #define DWMAC_CORE_5_00		0x50
 #define DWMAC_CORE_5_10		0x51
 #define DWMAC_CORE_5_20		0x52
+#define DWLGMAC_CORE_1_00	0x10
 #define DWXGMAC_CORE_2_10	0x21
 #define DWXLGMAC_CORE_2_00	0x20
 
@@ -547,6 +549,7 @@ int dwmac1000_setup(struct stmmac_priv *priv);
 int dwmac4_setup(struct stmmac_priv *priv);
 int dwxgmac2_setup(struct stmmac_priv *priv);
 int dwxlgmac2_setup(struct stmmac_priv *priv);
+int dwmac_loongson_setup(struct stmmac_priv *priv);
 
 void stmmac_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],
 			 unsigned int high, unsigned int low);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index 7aa450d6a81a..5da5f111d7e0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -172,6 +172,12 @@ static void dwmac1000_dma_init_rx(struct stmmac_priv *priv,
 		       chan * DMA_CHAN_OFFSET);
 		writel(upper_32_bits(dma_rx_phy), ioaddr + DMA_RCV_BASE_ADDR_HI +
 		       chan * DMA_CHAN_OFFSET);
+		if (priv->plat->has_lgmac) {
+			writel(upper_32_bits(dma_rx_phy),
+			       ioaddr + DMA_RCV_BASE_ADDR_SHADOW1);
+			writel(upper_32_bits(dma_rx_phy),
+			       ioaddr + DMA_RCV_BASE_ADDR_SHADOW2);
+		}
 	} else {
 		/* RX descriptor base address list must be written into DMA CSR3 */
 		writel(lower_32_bits(dma_rx_phy), ioaddr + DMA_RCV_BASE_ADDR +
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.c b/drivers/net/ethernet/stmicro/stmmac/hwif.c
index b8ba8f2d8041..b376ac4f80d5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.c
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.c
@@ -58,7 +58,8 @@ static int stmmac_dwmac1_quirks(struct stmmac_priv *priv)
 		dev_info(priv->device, "Enhanced/Alternate descriptors\n");
 
 		/* GMAC older than 3.50 has no extended descriptors */
-		if (priv->synopsys_id >= DWMAC_CORE_3_50) {
+		if (priv->synopsys_id >= DWMAC_CORE_3_50 ||
+		    priv->plat->has_lgmac) {
 			dev_info(priv->device, "Enabled extended descriptors\n");
 			priv->extend_desc = 1;
 		} else {
@@ -104,6 +105,7 @@ static const struct stmmac_hwif_entry {
 	bool gmac;
 	bool gmac4;
 	bool xgmac;
+	bool lgmac;
 	u32 min_id;
 	u32 dev_id;
 	const struct stmmac_regs_off regs;
@@ -122,6 +124,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = false,
 		.xgmac = false,
+		.lgmac = false,
 		.min_id = 0,
 		.regs = {
 			.ptp_off = PTP_GMAC3_X_OFFSET,
@@ -140,6 +143,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = true,
 		.gmac4 = false,
 		.xgmac = false,
+		.lgmac = false,
 		.min_id = 0,
 		.regs = {
 			.ptp_off = PTP_GMAC3_X_OFFSET,
@@ -158,6 +162,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = true,
 		.xgmac = false,
+		.lgmac = false,
 		.min_id = 0,
 		.regs = {
 			.ptp_off = PTP_GMAC4_OFFSET,
@@ -176,6 +181,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = true,
 		.xgmac = false,
+		.lgmac = false,
 		.min_id = DWMAC_CORE_4_00,
 		.regs = {
 			.ptp_off = PTP_GMAC4_OFFSET,
@@ -194,6 +200,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = true,
 		.xgmac = false,
+		.lgmac = false,
 		.min_id = DWMAC_CORE_4_10,
 		.regs = {
 			.ptp_off = PTP_GMAC4_OFFSET,
@@ -212,6 +219,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = true,
 		.xgmac = false,
+		.lgmac = false,
 		.min_id = DWMAC_CORE_5_10,
 		.regs = {
 			.ptp_off = PTP_GMAC4_OFFSET,
@@ -230,6 +238,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = false,
 		.xgmac = true,
+		.lgmac = false,
 		.min_id = DWXGMAC_CORE_2_10,
 		.dev_id = DWXGMAC_ID,
 		.regs = {
@@ -249,6 +258,7 @@ static const struct stmmac_hwif_entry {
 		.gmac = false,
 		.gmac4 = false,
 		.xgmac = true,
+		.lgmac = false,
 		.min_id = DWXLGMAC_CORE_2_00,
 		.dev_id = DWXLGMAC_ID,
 		.regs = {
@@ -264,6 +274,42 @@ static const struct stmmac_hwif_entry {
 		.mmc = &dwxgmac_mmc_ops,
 		.setup = dwxlgmac2_setup,
 		.quirks = stmmac_dwxlgmac_quirks,
+	}, {
+		.gmac = true,
+		.gmac4 = false,
+		.xgmac = false,
+		.lgmac = true,
+		.min_id = DWLGMAC_CORE_1_00,
+		.regs = {
+			.ptp_off = PTP_GMAC3_X_OFFSET,
+			.mmc_off = MMC_GMAC3_X_OFFSET,
+		},
+		.desc = NULL,
+		.dma = &dwmac1000_dma_ops,
+		.mac = &dwmac1000_ops,
+		.hwtimestamp = &stmmac_ptp,
+		.mode = NULL,
+		.tc = NULL,
+		.setup = dwmac_loongson_setup,
+		.quirks = stmmac_dwmac1_quirks,
+	}, {
+		.gmac = true,
+		.gmac4 = false,
+		.xgmac = false,
+		.lgmac = true,
+		.min_id = DWMAC_CORE_3_50,
+		.regs = {
+			.ptp_off = PTP_GMAC3_X_OFFSET,
+			.mmc_off = MMC_GMAC3_X_OFFSET,
+		},
+		.desc = NULL,
+		.dma = &dwmac1000_dma_ops,
+		.mac = &dwmac1000_ops,
+		.hwtimestamp = &stmmac_ptp,
+		.mode = NULL,
+		.tc = NULL,
+		.setup = dwmac1000_setup,
+		.quirks = stmmac_dwmac1_quirks,
 	},
 };
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index e8619853b6d6..829de274e75d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3505,17 +3505,21 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 	enum request_irq_err irq_err;
+	unsigned long flags = 0;
 	cpumask_t cpu_mask;
 	int irq_idx = 0;
 	char *int_name;
 	int ret;
 	int i;
 
+	if (priv->plat->has_lgmac)
+		flags |= IRQF_TRIGGER_RISING;
+
 	/* For common interrupt */
 	int_name = priv->int_name_mac;
 	sprintf(int_name, "%s:%s", dev->name, "mac");
 	ret = request_irq(dev->irq, stmmac_mac_interrupt,
-			  0, int_name, dev);
+			  flags, int_name, dev);
 	if (unlikely(ret < 0)) {
 		netdev_err(priv->dev,
 			   "%s: alloc mac MSI %d (error: %d)\n",
@@ -3532,7 +3536,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 		sprintf(int_name, "%s:%s", dev->name, "wol");
 		ret = request_irq(priv->wol_irq,
 				  stmmac_mac_interrupt,
-				  0, int_name, dev);
+				  flags, int_name, dev);
 		if (unlikely(ret < 0)) {
 			netdev_err(priv->dev,
 				   "%s: alloc wol MSI %d (error: %d)\n",
@@ -3550,7 +3554,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 		sprintf(int_name, "%s:%s", dev->name, "lpi");
 		ret = request_irq(priv->lpi_irq,
 				  stmmac_mac_interrupt,
-				  0, int_name, dev);
+				  flags, int_name, dev);
 		if (unlikely(ret < 0)) {
 			netdev_err(priv->dev,
 				   "%s: alloc lpi MSI %d (error: %d)\n",
@@ -3568,7 +3572,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 		sprintf(int_name, "%s:%s", dev->name, "safety-ce");
 		ret = request_irq(priv->sfty_ce_irq,
 				  stmmac_safety_interrupt,
-				  0, int_name, dev);
+				  flags, int_name, dev);
 		if (unlikely(ret < 0)) {
 			netdev_err(priv->dev,
 				   "%s: alloc sfty ce MSI %d (error: %d)\n",
@@ -3586,7 +3590,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 		sprintf(int_name, "%s:%s", dev->name, "safety-ue");
 		ret = request_irq(priv->sfty_ue_irq,
 				  stmmac_safety_interrupt,
-				  0, int_name, dev);
+				  flags, int_name, dev);
 		if (unlikely(ret < 0)) {
 			netdev_err(priv->dev,
 				   "%s: alloc sfty ue MSI %d (error: %d)\n",
@@ -3607,7 +3611,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 		sprintf(int_name, "%s:%s-%d", dev->name, "rx", i);
 		ret = request_irq(priv->rx_irq[i],
 				  stmmac_msi_intr_rx,
-				  0, int_name, &priv->dma_conf.rx_queue[i]);
+				  flags, int_name, &priv->dma_conf.rx_queue[i]);
 		if (unlikely(ret < 0)) {
 			netdev_err(priv->dev,
 				   "%s: alloc rx-%d  MSI %d (error: %d)\n",
@@ -3632,7 +3636,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
 		sprintf(int_name, "%s:%s-%d", dev->name, "tx", i);
 		ret = request_irq(priv->tx_irq[i],
 				  stmmac_msi_intr_tx,
-				  0, int_name, &priv->dma_conf.tx_queue[i]);
+				  flags, int_name, &priv->dma_conf.tx_queue[i]);
 		if (unlikely(ret < 0)) {
 			netdev_err(priv->dev,
 				   "%s: alloc tx-%d  MSI %d (error: %d)\n",
@@ -6057,8 +6061,10 @@ static u16 stmmac_select_queue(struct net_device *dev, struct sk_buff *skb,
 			       struct net_device *sb_dev)
 {
 	int gso = skb_shinfo(skb)->gso_type;
+	struct stmmac_priv *priv = netdev_priv(dev);
 
-	if (gso & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6 | SKB_GSO_UDP_L4)) {
+	if ((gso & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6 | SKB_GSO_UDP_L4)) ||
+	    priv->plat->has_lgmac) {
 		/*
 		 * There is no way to determine the number of TSO/USO
 		 * capable Queues. Let's use always the Queue 0
@@ -6936,7 +6942,8 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
 	 * riwt_off field from the platform.
 	 */
 	if (((priv->synopsys_id >= DWMAC_CORE_3_50) ||
-	    (priv->plat->has_xgmac)) && (!priv->plat->riwt_off)) {
+	    (priv->plat->has_xgmac) || (priv->plat->has_lgmac)) &&
+	    (!priv->plat->riwt_off)) {
 		priv->use_riwt = 1;
 		dev_info(priv->device,
 			 "Enable RX Mitigation via HW Watchdog Timer\n");
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 46bccc34814d..e21076f57205 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -344,5 +344,6 @@ struct plat_stmmacenet_data {
 	bool has_integrated_pcs;
 	const struct dwmac_regs *dwmac_regs;
 	bool dwmac_is_loongson;
+	int has_lgmac;
 };
 #endif
