diff --git a/target/linux/mpc85xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/mpc85xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
deleted file mode 100644
index be6ee40389b..00000000000
--- a/target/linux/mpc85xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/sh
-
-[ -e /lib/firmware/$FIRMWARE ] && exit 0
-
-. /lib/functions/caldata.sh
-
-board=$(board_name)
-
-case "$FIRMWARE" in
-"pci_wmac0.eeprom")
-	case $board in
-	tplink,tl-wdr4900-v1)
-		caldata_extract "caldata" 0x1000 0x800
-		ath9k_patch_mac $(mtd_get_mac_binary u-boot 0x4fc00)
-		;;
-	*)
-		caldata_die "board $board is not supported yet"
-		;;
-	esac
-	;;
-
-"pci_wmac1.eeprom")
-	case $board in
-	tplink,tl-wdr4900-v1)
-		caldata_extract "caldata" 0x5000 0x800
-		ath9k_patch_mac $(macaddr_add $(mtd_get_mac_binary u-boot 0x4fc00) -1)
-		;;
-	*)
-		caldata_die "board $board is not supported yet"
-		;;
-	esac
-	;;
-esac
diff --git a/target/linux/mpc85xx/files/arch/powerpc/boot/dts/tl-wdr4900-v1.dts b/target/linux/mpc85xx/files/arch/powerpc/boot/dts/tl-wdr4900-v1.dts
index 0b223605629..d8162f0dff5 100644
--- a/target/linux/mpc85xx/files/arch/powerpc/boot/dts/tl-wdr4900-v1.dts
+++ b/target/linux/mpc85xx/files/arch/powerpc/boot/dts/tl-wdr4900-v1.dts
@@ -92,6 +92,20 @@
 						reg = <0x00ff0000 0x00010000>;
 						label = "caldata";
 						read-only;
+
+						nvmem-layout {
+							compatible = "fixed-layout";
+							#address-cells = <1>;
+							#size-cells = <1>;
+
+							cal_caldata_1000: calibration@1000 {
+								reg = <0x1000 0x440>;
+							};
+
+							cal_caldata_5000: calibration@5000 {
+								reg = <0x5000 0x440>;
+							};
+						};
 					};
 				};
 			};
@@ -153,7 +167,6 @@
 
 						nvmem-cells = <&macaddr_uboot_4fc00 1>;
 						nvmem-cell-names = "mac-address";
-
 					};
 
 					port@2 {
@@ -252,6 +265,13 @@
 				  0x1000000 0x0 0x0
 				  0x1000000 0x0 0x0
 				  0x0 0x100000>;
+
+			wifi@0,0 {
+				compatible = "pci168c,0033";
+				reg = <0x0000 0 0 0 0>;
+				nvmem-cells = <&cal_caldata_1000>, <&macaddr_uboot_4fc00 0>;
+				nvmem-cell-names = "calibration", "mac-address";
+			};
 		};
 	};
 
@@ -267,6 +287,13 @@
 				  0x1000000 0x0 0x0
 				  0x1000000 0x0 0x0
 				  0x0 0x100000>;
+
+			wifi@0,0 {
+				compatible = "pci168c,0030";
+				reg = <0x0000 0 0 0 0>;
+				nvmem-cells = <&cal_caldata_5000>, <&macaddr_uboot_4fc00 (-1)>;
+				nvmem-cell-names = "calibration", "mac-address";
+			};
 		};
 	};
 
diff --git a/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c b/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c
index 87a97e65c89..095f1fb77d5 100644
--- a/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c
+++ b/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c
@@ -58,14 +58,12 @@ static struct gpio_led tl_wdr4900_v1_wmac_leds_gpio[] = {
 
 static struct ath9k_platform_data tl_wdr4900_v1_wmac0_data = {
 	.led_pin = 0,
-	.eeprom_name = "pci_wmac0.eeprom",
 	.leds = tl_wdr4900_v1_wmac_leds_gpio,
 	.num_leds = ARRAY_SIZE(tl_wdr4900_v1_wmac_leds_gpio),
 };
 
 static struct ath9k_platform_data tl_wdr4900_v1_wmac1_data = {
 	.led_pin = 0,
-	.eeprom_name = "pci_wmac1.eeprom",
 };
 
 static void tl_wdr4900_v1_pci_wmac_fixup(struct pci_dev *dev)