mediatek: convert mt7988a-rfb to keep bl31/uboot in UBI

Add ubi volumes for mt7988a-rfb and support for using factory data
for Ethernet MAC addresses and MT7996 WLAN calibration data.
Also add rootdisk handle. Removes the need to keep using nmbm

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/boot/uboot-mediatek/patches/105-configs-add-usefull-stuff-to-mt7988-rfb.patch

@@ -315,3 +315,29 @@
  CONFIG_MMC_HS200_SUPPORT=y
  CONFIG_MMC_MTK=y
  CONFIG_MTD=y
+--- a/arch/arm/dts/mt7988-rfb.dts
++++ b/arch/arm/dts/mt7988-rfb.dts
+@@ -144,6 +144,23 @@
+ 		compatible = "spi-nand";
+ 		reg = <0>;
+ 		spi-max-frequency = <52000000>;
++
++		partitions {
++			compatible = "fixed-partitions";
++			#address-cells = <1>;
++			#size-cells = <1>;
++
++			partition@0 {
++				label = "bl2";
++				reg = <0x0 0x200000>;
++			};
++
++			partition@200000 {
++				label = "ubi";
++				reg = <0x200000 0x7e00000>;
++				compatible = "linux,ubi";
++			};
++		};
+ 	};
+ };
+ 

target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-rfb-spim-nand-factory.dtso

@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "mediatek,mt7988a-rfb", "mediatek,mt7988a";
+
+	fragment@0 {
+		target = <&ubi_part>;
+
+		__overlay__ {
+			volumes {
+				ubi_factory: ubi-volume-factory {
+					volname = "factory";
+
+					nvmem-layout {
+						compatible = "fixed-layout";
+						#address-cells = <1>;
+						#size-cells = <1>;
+
+						eeprom_wmac: eeprom@0 {
+							reg = <0x0 0x1e00>;
+						};
+
+						gmac2_mac: eeprom@fffee {
+							reg = <0xfffee 0x6>;
+						};
+
+						gmac1_mac: eeprom@ffff4 {
+							reg = <0xffff4 0x6>;
+						};
+
+						gmac0_mac: eeprom@ffffa {
+							reg = <0xffffa 0x6>;
+						};
+					};
+				};
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&pcie0>;
+		__overlay__ {
+			pcie@0,0 {
+				reg = <0x0000 0 0 0 0>;
+
+				wifi@0,0 {
+					compatible = "mediatek,mt76";
+					reg = <0x0000 0 0 0 0>;
+					nvmem-cell-names = "eeprom";
+					nvmem-cells = <&eeprom_wmac>;
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&gmac0>;
+		__overlay__ {
+			nvmem-cell-names = "mac-address";
+			nvmem-cells = <&gmac0_mac>;
+		};
+	};
+
+	fragment@3 {
+		target = <&gmac1>;
+		__overlay__ {
+			nvmem-cell-names = "mac-address";
+			nvmem-cells = <&gmac1_mac>;
+		};
+	};
+
+	fragment@4 {
+		target = <&gmac2>;
+		__overlay__ {
+			nvmem-cell-names = "mac-address";
+			nvmem-cells = <&gmac2_mac>;
+		};
+	};
+};

target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-rfb-spim-nand.dtso

@@ -23,9 +23,6 @@
 				spi-max-frequency = <52000000>;
 				spi-tx-bus-width = <4>;
 				spi-rx-bus-width = <4>;
-				mediatek,nmbm;
-				mediatek,bmt-max-ratio = <1>;
-				mediatek,bmt-max-reserved-blocks = <64>;
 
 				partitions {
 					compatible = "fixed-partitions";
@@ -34,31 +31,45 @@
 
 					partition@0 {
 						label = "BL2";
-						reg = <0x00000 0x0100000>;
+						reg = <0x00000 0x0200000>;
 						read-only;
 					};
 
-					partition@100000 {
+					ubi_part: partition@200000 {
-						label = "u-boot-env";
-						reg = <0x0100000 0x0080000>;
-					};
-
-					partition@180000 {
-						label = "Factory";
-						reg = <0x180000 0x0400000>;
-					};
-
-					partition@580000 {
-						label = "FIP";
-						reg = <0x580000 0x0200000>;
-					};
-
-					partition@780000 {
 						label = "ubi";
-						reg = <0x780000 0x7080000>;
+						reg = <0x0200000 0x7e00000>;
+						compatible = "linux,ubi";
+
+						volumes {
+							ubi-volume-ubootenv {
+								volname = "ubootenv";
+								nvmem-layout {
+									compatible = "u-boot,env-redundant-bool-layout";
+								};
+							};
+
+							ubi-volume-ubootenv2 {
+								volname = "ubootenv2";
+								nvmem-layout {
+									compatible = "u-boot,env-redundant-bool-layout";
+								};
+							};
+
+							ubi_root: ubi-volume-fit {
+								volname = "fit";
+							};
+
 						};
 					};
 				};
 			};
 		};
+	};
+
+	fragment@1 {
+		target-path = "/chosen";
+		__overlay__ {
+			rootdisk-spim-nand = <&ubi_root>;
+		};
+	};
 };

target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh

@@ -84,6 +84,7 @@ platform_do_upgrade() {
 	bananapi,bpi-r3-mini|\
 	bananapi,bpi-r4|\
 	bananapi,bpi-r4-poe|\
+	mediatek,mt7988a-rfb|\
 	jdcloud,re-cp-03|\
 	tplink,tl-xdr4288|\
 	tplink,tl-xdr6086|\

target/linux/mediatek/image/filogic.mk

@@ -824,6 +824,7 @@ define Device/mediatek_mt7988a-rfb
 	mt7988a-rfb-sd \
 	mt7988a-rfb-snfi-nand \
 	mt7988a-rfb-spim-nand \
+	mt7988a-rfb-spim-nand-factory \
 	mt7988a-rfb-spim-nor \
 	mt7988a-rfb-eth1-aqr \
 	mt7988a-rfb-eth1-i2p5g-phy \
@@ -855,7 +856,7 @@ define Device/mediatek_mt7988a-rfb
   ARTIFACT/emmc-bl31-uboot.fip	:= mt7988-bl31-uboot rfb-emmc
   ARTIFACT/nor-preloader.bin	:= mt7988-bl2 nor-comb
   ARTIFACT/nor-bl31-uboot.fip	:= mt7988-bl31-uboot rfb-nor
-  ARTIFACT/snand-preloader.bin	:= mt7988-bl2 spim-nand-comb
+  ARTIFACT/snand-preloader.bin	:= mt7988-bl2 spim-nand-ubi-comb
   ARTIFACT/snand-bl31-uboot.fip	:= mt7988-bl31-uboot rfb-snand
   ARTIFACT/sdcard.img.gz	:= mt798x-gpt sdmmc |\
 				   pad-to 17k | mt7988-bl2 sdmmc-comb |\