diff --git a/target/linux/realtek/files-6.6/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-6.6/drivers/net/dsa/rtl83xx/dsa.c
index 69151b2f6bb..cdfe0fe3dc0 100644
--- a/target/linux/realtek/files-6.6/drivers/net/dsa/rtl83xx/dsa.c
+++ b/target/linux/realtek/files-6.6/drivers/net/dsa/rtl83xx/dsa.c
@@ -814,6 +814,7 @@ static void rtl93xx_phylink_mac_config(struct dsa_switch *ds, int port,
 	pr_info("%s SDS is %d\n", __func__, sds_num);
 	if (sds_num >= 0 &&
 	    (state->interface == PHY_INTERFACE_MODE_1000BASEX ||
+	     state->interface == PHY_INTERFACE_MODE_SGMII ||
 	     state->interface == PHY_INTERFACE_MODE_10GBASER))
 		rtl9300_serdes_setup(port, sds_num, state->interface);
 
diff --git a/target/linux/realtek/files-6.6/drivers/net/phy/rtl83xx-phy.c b/target/linux/realtek/files-6.6/drivers/net/phy/rtl83xx-phy.c
index 53a7e184f53..9bab139e6d4 100644
--- a/target/linux/realtek/files-6.6/drivers/net/phy/rtl83xx-phy.c
+++ b/target/linux/realtek/files-6.6/drivers/net/phy/rtl83xx-phy.c
@@ -1921,6 +1921,7 @@ void rtl9300_sds_tx_config(int sds, phy_interface_t phy_if)
 
 	switch(phy_if) {
 	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_SGMII:
 		pre_amp = 0x1;
 		main_amp = 0x9;
 		post_amp = 0x1;
@@ -2475,7 +2476,9 @@ void rtl9300_do_rx_calibration_1(int sds, phy_interface_t phy_mode)
 
 	/* TODO: make this work for DAC cables of different lengths */
 	/* For a 10GBit serdes wit Fibre, SDS 8 or 9 */
-	if (phy_mode == PHY_INTERFACE_MODE_10GBASER || PHY_INTERFACE_MODE_1000BASEX)
+	if (phy_mode == PHY_INTERFACE_MODE_10GBASER ||
+	    phy_mode == PHY_INTERFACE_MODE_1000BASEX ||
+	    phy_mode == PHY_INTERFACE_MODE_SGMII)
 		rtl9300_sds_field_w(sds, 0x2e, 0x16,  3,  2, 0x02);
 	else
 		pr_err("%s not PHY-based or SerDes, implement DAC!\n", __func__);
@@ -2573,7 +2576,9 @@ void rtl9300_sds_rxcal_3_1(int sds_num, phy_interface_t phy_mode)
 	pr_info("start_1.3.1");
 
 	/* ##1.3.1 */
-	if (phy_mode != PHY_INTERFACE_MODE_10GBASER && phy_mode != PHY_INTERFACE_MODE_1000BASEX)
+	if (phy_mode != PHY_INTERFACE_MODE_10GBASER &&
+	    phy_mode != PHY_INTERFACE_MODE_1000BASEX &&
+	    phy_mode != PHY_INTERFACE_MODE_SGMII)
 		rtl9300_sds_field_w(sds_num, 0x2e, 0xc, 8, 8, 0);
 
 	rtl9300_sds_field_w(sds_num, 0x2e, 0x17, 7, 7, 0x0);
@@ -2589,7 +2594,9 @@ void rtl9300_sds_rxcal_3_2(int sds_num, phy_interface_t phy_mode)
 	bool eq_hold_enabled;
 	int i;
 
-	if (phy_mode == PHY_INTERFACE_MODE_10GBASER || phy_mode == PHY_INTERFACE_MODE_1000BASEX) {
+	if (phy_mode == PHY_INTERFACE_MODE_10GBASER ||
+	    phy_mode == PHY_INTERFACE_MODE_1000BASEX ||
+	    phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		/* rtl9300_rxCaliConf_serdes_myParam */
 		dac_long_cable_offset = 3;
 		eq_hold_enabled = true;
@@ -2599,7 +2606,7 @@ void rtl9300_sds_rxcal_3_2(int sds_num, phy_interface_t phy_mode)
 		eq_hold_enabled = false;
 	}
 
-	if (phy_mode == PHY_INTERFACE_MODE_1000BASEX)
+	if (phy_mode != PHY_INTERFACE_MODE_10GBASER)
 		pr_warn("%s: LEQ only valid for 10GR!\n", __func__);
 
 	pr_info("start_1.3.2");
@@ -2614,7 +2621,9 @@ void rtl9300_sds_rxcal_3_2(int sds_num, phy_interface_t phy_mode)
 
 	pr_info("sum10:%u, avg10:%u, int10:%u", sum10, avg10, int10);
 
-	if (phy_mode == PHY_INTERFACE_MODE_10GBASER || phy_mode == PHY_INTERFACE_MODE_1000BASEX) {
+	if (phy_mode == PHY_INTERFACE_MODE_10GBASER ||
+	    phy_mode == PHY_INTERFACE_MODE_1000BASEX ||
+	    phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		if (dac_long_cable_offset) {
 			rtl9300_sds_rxcal_leq_offset_manual(sds_num, 1, dac_long_cable_offset);
 			rtl9300_sds_field_w(sds_num, 0x2e, 0x17, 7, 7, eq_hold_enabled);
@@ -2644,7 +2653,9 @@ void rtl9300_do_rx_calibration_3(int sds_num, phy_interface_t phy_mode)
 {
 	rtl9300_sds_rxcal_3_1(sds_num, phy_mode);
 
-	if (phy_mode == PHY_INTERFACE_MODE_10GBASER || phy_mode == PHY_INTERFACE_MODE_1000BASEX)
+	if (phy_mode == PHY_INTERFACE_MODE_10GBASER ||
+	    phy_mode == PHY_INTERFACE_MODE_1000BASEX ||
+	    phy_mode == PHY_INTERFACE_MODE_SGMII)
 		rtl9300_sds_rxcal_3_2(sds_num, phy_mode);
 }
 
@@ -2765,6 +2776,7 @@ int rtl9300_sds_sym_err_reset(int sds_num, phy_interface_t phy_mode)
 		break;
 
 	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_SGMII:
 		rtl9300_sds_field_w(sds_num, 0x1, 24, 2, 0, 0);
 		rtl9300_sds_field_w(sds_num, 0x1, 3, 15, 8, 0);
 		rtl9300_sds_field_w(sds_num, 0x1, 2, 15, 0, 0);
@@ -2787,6 +2799,7 @@ u32 rtl9300_sds_sym_err_get(int sds_num, phy_interface_t phy_mode)
 		break;
 
 	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_SGMII:
 	case PHY_INTERFACE_MODE_10GBASER:
 		v = rtl930x_read_sds_phy(sds_num, 5, 1);
 		return v & 0xff;
@@ -2812,6 +2825,7 @@ int rtl9300_sds_check_calibration(int sds_num, phy_interface_t phy_mode)
 
 	switch (phy_mode) {
 	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_SGMII:
 	case PHY_INTERFACE_MODE_XGMII:
 		if ((errors2 - errors1 > 100) ||
 		    (errors1 >= 0xffff00) || (errors2 >= 0xffff00)) {