[openwrt/openwrt] mediatek: filogic: asus-tuf-ax6000: use NVMEM-on-UBI

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/1794309bb5a442b5824de27a889f0855dcfe2198

commit 1794309bb5a442b5824de27a889f0855dcfe2198
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Mon Feb 19 03:22:52 2024 +0000

    mediatek: filogic: asus-tuf-ax6000: use NVMEM-on-UBI
    
    Use newly added support for NVMEM-on-UBI instead of extracting MAC
    address and WiFi EEPROM data in userspace.
    
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 .../linux/mediatek/dts/mt7986a-asus-tuf-ax6000.dts | 58 +++++++++++++++++++---
 .../filogic/base-files/etc/board.d/02_network      |  6 ---
 .../etc/hotplug.d/firmware/11-mt76-caldata         |  4 --
 3 files changed, 52 insertions(+), 16 deletions(-)

diff --git a/target/linux/mediatek/dts/mt7986a-asus-tuf-ax6000.dts b/target/linux/mediatek/dts/mt7986a-asus-tuf-ax6000.dts
index 2d7b9c8c5c..bde2525cd7 100644
--- a/target/linux/mediatek/dts/mt7986a-asus-tuf-ax6000.dts
+++ b/target/linux/mediatek/dts/mt7986a-asus-tuf-ax6000.dts
@@ -13,6 +13,7 @@
 
 	aliases {
 		serial0 = &uart0;
+		label-mac-device = &gmac0;
 		led-boot = &led_system;
 		led-failsafe = &led_system;
 		led-running = &led_system;
@@ -21,7 +22,7 @@
 
 	chosen {
 		stdout-path = "serial0:115200n8";
-		bootargs-override = "ubi.mtd=UBI_DEV";
+		bootargs-override = "";
 	};
 
 	memory {
@@ -101,6 +102,8 @@
 		/* LAN */
 		compatible = "mediatek,eth-mac";
 		reg = <0>;
+		nvmem-cells = <&macaddr_factory_4>;
+		nvmem-cell-names = "mac-address";
 		phy-mode = "2500base-x";
 
 		fixed-link {
@@ -219,33 +222,74 @@
 
 	spi_nand_flash: flash at 0 {
 		compatible = "spi-nand";
+		reg = <0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
-		reg = <0>;
 
 		spi-max-frequency = <20000000>;
 		spi-tx-bus-width = <4>;
 		spi-rx-bus-width = <4>;
 
-		partitions: partitions {
+		/*
+		 * ASUS bootloader tries to replace the partitions defined in
+		 * Device Tree and by that also deletes all additional properties
+		 * needed for UBI and NVMEM-on-UBI.
+		 * Prevent this from happening by tricking the loader to delete and
+		 * replace a bait node instead.
+		 */
+		partitions: dummy {
+			compatible = "u-boot-dummy-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition at 0 {
+				reg = <0x0 0x0>;
+				label = "remove_me";
+			};
+		};
+
+		partitions {
 			compatible = "fixed-partitions";
 			#address-cells = <1>;
 			#size-cells = <1>;
 
 			partition at 0 {
-				label = "bootloader";
 				reg = <0x0 0x400000>;
+				label = "bootloader";
 				read-only;
 			};
 
 			partition at 400000 {
-				label = "UBI_DEV";
+				compatible = "linux,ubi";
 				reg = <0x400000 0xfc00000>;
+				label = "UBI_DEV";
+
+				volumes {
+					ubi_factory: ubi-volume-factory {
+						volname = "Factory";
+					};
+				};
 			};
 		};
 	};
 };
 
+&ubi_factory {
+	nvmem-layout {
+		compatible = "fixed-layout";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		eeprom_factory_0: eeprom at 0 {
+			reg = <0x0 0x1000>;
+		};
+
+		macaddr_factory_4: macaddr at 4 {
+			reg = <0x4 0x6>;
+		};
+	};
+};
+
 &switch {
 	ports {
 		#address-cells = <1>;
@@ -360,10 +404,12 @@
 };
 
 &wifi {
-	status = "okay";
+	nvmem-cells = <&eeprom_factory_0>;
+	nvmem-cell-names = "eeprom";
 	pinctrl-names = "default", "dbdc";
 	pinctrl-0 = <&wf_2g_5g_pins>;
 	pinctrl-1 = <&wf_dbdc_pins>;
+	status = "okay";
 };
 
 &trng {
diff --git a/target/linux/mediatek/filogic/base-files/etc/board.d/02_network b/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
index 9f9544dec0..c899be1b98 100644
--- a/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
+++ b/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
@@ -109,12 +109,6 @@ mediatek_setup_macs()
 	local label_mac=""
 
 	case $board in
-	asus,tuf-ax6000)
-		CI_UBIPART="UBI_DEV"
-		addr=$(mtd_get_mac_binary_ubi "Factory" 0x4)
-		wan_mac="${addr}"
-		lan_mac="${addr}"
-		;;
 	bananapi,bpi-r3)
 		wan_mac=$(macaddr_add $(cat /sys/class/net/eth0/address) 1)
 		;;
diff --git a/target/linux/mediatek/filogic/base-files/etc/hotplug.d/firmware/11-mt76-caldata b/target/linux/mediatek/filogic/base-files/etc/hotplug.d/firmware/11-mt76-caldata
index bb81444b01..bd68ef7415 100644
--- a/target/linux/mediatek/filogic/base-files/etc/hotplug.d/firmware/11-mt76-caldata
+++ b/target/linux/mediatek/filogic/base-files/etc/hotplug.d/firmware/11-mt76-caldata
@@ -59,10 +59,6 @@ case "$FIRMWARE" in
 	;;
 "mediatek/mt7986_eeprom_mt7976_dual.bin")
 	case "$board" in
-	asus,tuf-ax6000)
-		CI_UBIPART="UBI_DEV"
-		caldata_extract_ubi "Factory" 0x0 0x1000
-		;;
 	jdcloud,re-cp-03)
 		caldata_extract_mmc "factory" 0x0 0x1000
 		;;