diff --git a/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c b/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
index 9974955a3a..3ba29b0dc9 100644
--- a/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
+++ b/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
@@ -131,6 +131,18 @@ enum rtpcs_sds_mode {
 	RTPCS_SDS_MODE_USXGMII_2_5GSXGMII,
 };
 
+enum rtpcs_port_media {
+	RTPCS_PORT_MEDIA_NONE,
+	RTPCS_PORT_MEDIA_FIBER_100M,
+	RTPCS_PORT_MEDIA_FIBER_1G,
+	RTPCS_PORT_MEDIA_FIBER_2_5G,
+	RTPCS_PORT_MEDIA_FIBER_10G,
+	RTPCS_PORT_MEDIA_DAC_50CM,
+	RTPCS_PORT_MEDIA_DAC_100CM,
+	RTPCS_PORT_MEDIA_DAC_300CM,
+	RTPCS_PORT_MEDIA_DAC_500CM,
+};
+
 struct rtpcs_ctrl;
 
 struct rtpcs_serdes {