ramips: mt7621: convert Wavlink devices EEPROM to NVMEM format

-+------------------------------+-
 |    Model   |       NIC       |
-+------------------------------+-
 | WL-WN531A6 | MT7603 + MT7615 |
-+------------------------------+-
 | WL-WN533A8 |    MT7615 *2    |
-+------------------------------+-

Signed-off-by: Shiji Yang <[email protected]>

target/linux/ramips/dts/mt7621_wavlink_wl-wn533a8.dts

@@ -7,6 +7,11 @@
 	model = "Wavlink WL-WN533A8";
 };
 
+/* override EEPROM size to 0x4da8 for MT7615 */
+&eeprom_factory_0 {
+	reg = <0x0 0x4da8>;
+};
+
 &wifi0{
 	ieee80211-freq-limit = <2400000 5490000>;
 };

target/linux/ramips/dts/mt7621_wavlink_wl-wn53xax.dtsi

@@ -101,6 +101,14 @@
 					#address-cells = <1>;
 					#size-cells = <1>;
 
+					eeprom_factory_0: eeprom@0 {
+						reg = <0x0 0x400>;
+					};
+
+					eeprom_factory_8000: eeprom@8000 {
+						reg = <0x8000 0x4da8>;
+					};
+
 					macaddr_factory_e000: macaddr@e000 {
 						reg = <0xe000 0x6>;
 					};
@@ -134,7 +142,8 @@
 	wifi0: mt76@0,0 {
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
-		mediatek,mtd-eeprom = <&factory 0x0>;
+		nvmem-cells = <&eeprom_factory_0>;
+		nvmem-cell-names = "eeprom";
 	};
 };
 
@@ -142,7 +151,8 @@
 	wifi1: mt76@0,0 {
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
-		mediatek,mtd-eeprom = <&factory 0x8000>;
+		nvmem-cells = <&eeprom_factory_8000>;
+		nvmem-cell-names = "eeprom";
 	};
 };