diff --git a/include/dt-bindings/mux/ti-serdes.h b/include/dt-bindings/mux/ti-serdes.h
index d417b92..d3116c5 100644
--- a/include/dt-bindings/mux/ti-serdes.h
+++ b/include/dt-bindings/mux/ti-serdes.h
@@ -95,4 +95,26 @@
 #define AM64_SERDES0_LANE0_PCIE0		0x0
 #define AM64_SERDES0_LANE0_USB			0x1
 
+/* J721S2 */
+
+#define J721S2_SERDES0_LANE0_EDP_LANE0		0x0
+#define J721S2_SERDES0_LANE0_PCIE1_LANE0	0x1
+#define J721S2_SERDES0_LANE0_IP3_UNUSED		0x2
+#define J721S2_SERDES0_LANE0_IP4_UNUSED		0x3
+
+#define J721S2_SERDES0_LANE1_EDP_LANE1		0x0
+#define J721S2_SERDES0_LANE1_PCIE1_LANE1	0x1
+#define J721S2_SERDES0_LANE1_USB		0x2
+#define J721S2_SERDES0_LANE1_IP4_UNUSED		0x3
+
+#define J721S2_SERDES0_LANE2_EDP_LANE2		0x0
+#define J721S2_SERDES0_LANE2_PCIE1_LANE2	0x1
+#define J721S2_SERDES0_LANE2_IP3_UNUSED		0x2
+#define J721S2_SERDES0_LANE2_IP4_UNUSED		0x3
+
+#define J721S2_SERDES0_LANE3_EDP_LANE3		0x0
+#define J721S2_SERDES0_LANE3_PCIE1_LANE3	0x1
+#define J721S2_SERDES0_LANE3_USB		0x2
+#define J721S2_SERDES0_LANE3_IP4_UNUSED		0x3
+
 #endif /* _DT_BINDINGS_MUX_TI_SERDES */