ipq806x: ac400i: use nvmem for MAC addresses

Userspace handling is deprecated. NVMEM allows flexibility in terms of
exotic setups by avoiding random MAC addresses.

u-boot env-size taken from the entry in uboot-envtools

Signed-off-by: Rosen Penev <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/22107
Signed-off-by: Robert Marko <[email protected]>

target/linux/ipq806x/base-files/etc/hotplug.d/firmware/11-ath10k-caldata

@@ -47,10 +47,6 @@ case "$FIRMWARE" in
 		CI_UBIPART=art
 		caldata_extract_ubi "ART" 0x1000 0x2f20
 		;;
-	nokia,ac400i)
-		caldata_extract "0:art" 0x1000 0x2f20
-		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_ascii 0:appsblenv ethaddr) +2)
-		;;
 	zyxel,nbg6817)
 		caldata_extract "0:art" 0x1000 0x2f20
 		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_ascii 0:appsblenv ethaddr) 1)
@@ -78,10 +74,6 @@ case "$FIRMWARE" in
 		CI_UBIPART=art
 		caldata_extract_ubi "ART" 0x5000 0x2f20
 		;;
-	nokia,ac400i)
-		caldata_extract "0:art" 0x5000 0x2f20
-		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_ascii 0:appsblenv ethaddr) +3)
-		;;
 	zyxel,nbg6817)
 		caldata_extract "0:art" 0x5000 0x2f20
 		ath10k_patch_mac $(mtd_get_mac_ascii 0:appsblenv ethaddr)

target/linux/ipq806x/dts/qcom-ipq8065-ac400i.dts

@@ -175,6 +175,39 @@
 
 			partitions {
 				compatible = "qcom,smem-part";
+
+				partition-0-art {
+					label = "0:art";
+					read-only;
+
+					nvmem-layout {
+						compatible = "fixed-layout";
+						#address-cells = <1>;
+						#size-cells = <1>;
+
+						precal_art_1000: pre-calibration@1000 {
+							reg = <0x1000 0x2f20>;
+						};
+
+						precal_art_5000: pre-calibration@5000 {
+							reg = <0x5000 0x2f20>;
+						};
+					};
+				};
+
+				partition-0-appsblenv {
+					label = "0:appsblenv";
+					read-only;
+
+					nvmem-layout {
+						compatible = "u-boot,env";
+						env-size = <0x40000>;
+
+						macaddr_uboot_ethaddr: ethaddr {
+							#nvmem-cell-cells = <1>;
+						};
+					};
+				};
 			};
 		};
 	};
@@ -201,6 +234,8 @@
 		compatible = "qcom,ath10k";
 		reg = <0x00010000 0 0 0 0>;
 		qcom,ath10k-calibration-variant = "Nokia-AC400i";
+		nvmem-cells = <&precal_art_1000>, <&macaddr_uboot_ethaddr 2>;
+		nvmem-cell-names = "pre-calibration", "mac-address";
 	};
 };
 
@@ -217,6 +252,8 @@
 		compatible = "qcom,ath10k";
 		reg = <0x00010000 0 0 0 0>;
 		qcom,ath10k-calibration-variant = "Nokia-AC400i";
+		nvmem-cells = <&precal_art_5000>, <&macaddr_uboot_ethaddr 3>;
+		nvmem-cell-names = "pre-calibration", "mac-address";
 	};
 };