diff --git a/target/linux/ipq806x/patches-5.4/100-dwmac-ipq806x-qsgmii-pcs-all-ch-ctl.patch b/target/linux/ipq806x/patches-5.4/100-dwmac-ipq806x-qsgmii-pcs-all-ch-ctl.patch
new file mode 100644
index 0000000000..6cdbf4d3dc
--- /dev/null
+++ b/target/linux/ipq806x/patches-5.4/100-dwmac-ipq806x-qsgmii-pcs-all-ch-ctl.patch
@@ -0,0 +1,33 @@
+--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
+@@ -64,6 +64,17 @@
+ #define NSS_COMMON_CLK_DIV_SGMII_100		4
+ #define NSS_COMMON_CLK_DIV_SGMII_10		49
+ 
++#define QSGMII_PCS_ALL_CH_CTL			0x80
++#define QSGMII_PCS_CH_SPEED_FORCE		0x2
++#define QSGMII_PCS_CH_SPEED_10			0x0
++#define QSGMII_PCS_CH_SPEED_100			0x4
++#define QSGMII_PCS_CH_SPEED_1000		0x8
++#define QSGMII_PCS_CH_SPEED_MASK		(QSGMII_PCS_CH_SPEED_FORCE | \
++						 QSGMII_PCS_CH_SPEED_10 | \
++						 QSGMII_PCS_CH_SPEED_100 | \
++						 QSGMII_PCS_CH_SPEED_1000)
++#define QSGMII_PCS_CH_SPEED_SHIFT(x)		(x * 4)
++
+ #define QSGMII_PCS_CAL_LCKDT_CTL		0x120
+ #define QSGMII_PCS_CAL_LCKDT_CTL_RST		BIT(19)
+ 
+@@ -345,6 +356,12 @@ static int ipq806x_gmac_probe(struct pla
+ 			     0x1ul << QSGMII_PHY_RX_INPUT_EQU_OFFSET |
+ 			     0x2ul << QSGMII_PHY_CDR_PI_SLEW_OFFSET |
+ 			     0xCul << QSGMII_PHY_TX_DRV_AMP_OFFSET);
++
++		regmap_update_bits(gmac->qsgmii_csr,
++				   QSGMII_PCS_ALL_CH_CTL,
++				   QSGMII_PCS_CH_SPEED_MASK <<
++				    QSGMII_PCS_CH_SPEED_SHIFT(gmac->id),
++				   0);
+ 	}
+ 
+ 	plat_dat->has_gmac = true;