mediatek: filogic: add support for Globitel BT-R320HEADmastermain

The Globitel BT-R320 (PCB rev V1.2) is an enterprise/ISP Wi-Fi 6 router
based on the MediaTek MT7981B (Filogic 820) platform.

Hardware specifications:
SoC: MediaTek MT7981B (Filogic 820)
RAM: 1GB DDR4 (Nanya NT5AD512M16C4-HR)
Flash: 128GB eMMC (UNIC UNMEN07GC4C31BS)
Switch: MediaTek MT7531AE
Ethernet: 1x 1GbE WAN, 3x 1GbE LAN
Wi-Fi: 2.4 GHz: 2x2 MT7976CN and 5 GHz: 2x2 MT7976CN (integrated FEM)
USB: 1x USB 3.0
LEDs: 2x Green (WLAN 2.4G / 5G)
Buttons: 1x Reset (GPIO 1, ACTIVE_LOW), 1x WPS (GPIO 0, ACTIVE_LOW)
Power: 12V, 1.5A
UART: 115200 8n1

Note on eMMC configuration (Addressing 52MHz limit on 128GB IC):
Debugfs output from the OEM firmware (/sys/kernel/debug/mmc0/ios) confirms
the manufacturer deliberately limits the eMMC to 52MHz High-Speed mode at 3.3V
(actual clock: 52000000 Hz, bus width: 8 bits, timing spec: mmc high-speed).
Therefore, the conservative DTS properties (max-frequency = <52000000> and
lack of HS200/HS400 support) strictly reflect the OEM hardware design.

Installation instructions:
1. SSH into the stock router (192.168.132.1, user: root, pass: password).
2. Back up existing partitions using dd.
3. Upload the OpenWrt-built GPT partition table (*-gpt.bin) and flash it:
   dd if=/tmp/gpt.bin of=/dev/mmcblk0 bs=512 count=34 conv=fsync
   echo -e 'w' | fdisk /dev/mmcblk0
4. Flash the OpenWrt-built U-Boot (*-bl31-uboot.fip) to the FIP partition:
   dd if=/tmp/uboot.fip of=$(blkid -t PARTLABEL=fip -o device) conv=fsync
5. Disconnect power. Connect PC with static IP 192.168.1.2.
6. Hold reset button, power on, and wait 10 seconds to enter U-Boot web UI.
7. Flash the OpenWrt sysupgrade image.

Stock partition layout:
p1: uboot_env
p2: factory
p3: fip
p4: kernel
p5: rootfs
p6: userdata

MAC address layout (factory partition, mmcblk0p2):
WAN: xx:xx:xx:xx:xx:xx (factory offset 0x24)
LAN: xx:xx:xx:xx:xx:xy (factory offset 0x2a)
Label: Matches LAN MAC (0x2a)
2.4G: Base MAC (extracted from factory offset 0x4)
5G: Base MAC with Locally Administered bit set

Signed-off-by: Kirill Molotov <kirill2015molotov@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23188
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

8 files changed, 615 insertions, 0 deletions

diff --git a/package/boot/uboot-mediatek/Makefile b/package/boot/uboot-mediatek/Makefile
index f485dffbcf..387ea0ee54 100644
--- a/package/boot/uboot-mediatek/Makefile
+++ b/package/boot/uboot-mediatek/Makefile
@@ -421,6 +421,18 @@ define U-Boot/mt7981_glinet_gl-xe3000
   DEPENDS:=+trusted-firmware-a-mt7981-emmc-ddr4
 endef
 
+define U-Boot/mt7981_globitel_bt-r320
+  NAME:=Globitel BT-R320
+  BUILD_SUBTARGET:=filogic
+  BUILD_DEVICES:=globitel_bt-r320
+  UBOOT_CONFIG:=mt7981_globitel_bt-r320
+  UBOOT_IMAGE:=u-boot.fip
+  BL2_BOOTDEV:=emmc
+  BL2_SOC:=mt7981
+  BL2_DDRTYPE:=ddr4
+  DEPENDS:=+trusted-firmware-a-mt7981-emmc-ddr4
+endef
+
 define U-Boot/mt7981_h3c_magic-nx30-pro
   NAME:=H3C Magic NX30 Pro
   BUILD_SUBTARGET:=filogic
@@ -1231,6 +1243,7 @@ UBOOT_TARGETS := \
 	mt7981_glinet_gl-mt2500 \
 	mt7981_glinet_gl-x3000 \
 	mt7981_glinet_gl-xe3000 \
+	mt7981_globitel_bt-r320 \
 	mt7981_h3c_magic-nx30-pro \
 	mt7981_imou_hx21 \
 	mt7981_jcg_q30-pro \
diff --git a/package/boot/uboot-mediatek/patches/472-add-globitel-bt-r320.patch b/package/boot/uboot-mediatek/patches/472-add-globitel-bt-r320.patch
new file mode 100644
index 0000000000..ce9dd2d79c
--- /dev/null
+++ b/package/boot/uboot-mediatek/patches/472-add-globitel-bt-r320.patch
@@ -0,0 +1,348 @@
+--- /dev/null
++++ b/arch/arm/dts/mt7981-globitel-bt-r320.dts
+@@ -0,0 +1,160 @@
++// SPDX-License-Identifier: GPL-2.0
++
++/dts-v1/;
++#include "mt7981.dtsi"
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/input/input.h>
++
++/ {
++	#address-cells = <1>;
++	#size-cells = <1>;
++	model = "Globitel BT-R320";
++	compatible = "globitel,bt-r320", "mediatek,mt7981", "mediatek,mt7981-rfb";
++
++	chosen {
++		stdout-path = &uart0;
++		tick-timer = &timer0;
++	};
++
++	memory@40000000 {
++		device_type = "memory";
++		reg = <0x40000000 0x40000000>;
++	};
++
++	reg_3p3v: regulator-3p3v {
++		compatible = "regulator-fixed";
++		regulator-name = "fixed-3.3V";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		regulator-always-on;
++	};
++
++	gpio-keys {
++		compatible = "gpio-keys";
++
++		reset {
++			label = "reset";
++			linux,code = <KEY_RESTART>;
++			gpios = <&pio 1 GPIO_ACTIVE_LOW>;
++		};
++
++		wps {
++			label = "wps";
++			linux,code = <KEY_WPS_BUTTON>;
++			gpios = <&pio 0 GPIO_ACTIVE_LOW>;
++		};
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_pins>;
++	status = "disabled";
++};
++
++&eth {
++	status = "okay";
++	mediatek,gmac-id = <0>;
++	phy-mode = "sgmii";
++	mediatek,switch = "mt7531";
++	reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
++
++	fixed-link {
++		speed = <1000>;
++		full-duplex;
++	};
++};
++
++&pio {
++	spic_pins: spi1-pins-func-1 {
++		mux {
++			function = "spi";
++			groups = "spi1_1";
++		};
++	};
++
++	uart1_pins: spi1-pins-func-3 {
++		mux {
++			function = "uart";
++			groups = "uart1_2";
++		};
++	};
++
++	one_pwm_pins: one-pwm-pins {
++		mux {
++			function = "pwm";
++			groups = "pwm0_1";
++		};
++	};
++
++	two_pwm_pins: two-pwm-pins {
++		mux {
++			function = "pwm";
++			groups = "pwm0_1", "pwm1_0";
++		};
++	};
++
++	three_pwm_pins: three-pwm-pins {
++		mux {
++			function = "pwm";
++			groups = "pwm0_1", "pwm1_0", "pwm2";
++		};
++	};
++
++	mmc0_pins_default: mmc0default {
++		mux {
++			function = "flash";
++			groups = "emmc_45";
++		};
++
++		conf-cmd-dat {
++			pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO",
++				"SPI0_CS",  "SPI0_HOLD", "SPI0_WP",
++				"SPI1_CLK", "SPI1_MOSI", "SPI1_MISO";
++			input-enable;
++			drive-strength = <MTK_DRIVE_4mA>;
++			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
++		};
++
++		conf-clk {
++			pins = "SPI1_CS";
++			drive-strength = <MTK_DRIVE_6mA>;
++			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
++		};
++
++		conf-rst {
++			pins = "PWM0";
++			drive-strength = <MTK_DRIVE_4mA>;
++			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
++		};
++	};
++};
++
++&pwm {
++	pinctrl-names = "default";
++	pinctrl-0 = <&two_pwm_pins>;
++	status = "okay";
++};
++
++&watchdog {
++	status = "disabled";
++};
++
++&mmc0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&mmc0_pins_default>;
++	bus-width = <8>;
++	max-frequency = <52000000>;
++	cap-mmc-highspeed;
++	cap-mmc-hw-reset;
++	vmmc-supply = <&reg_3p3v>;
++	non-removable;
++	status = "okay";
++};
+--- /dev/null
++++ b/defenvs/mt7981_globitel_bt-r320_env
+@@ -0,0 +1,52 @@
++ipaddr=192.168.1.1
++serverip=192.168.1.254
++loadaddr=0x46000000
++console=earlycon=uart8250,mmio32,0x11002000 console=ttyS0
++bootargs=root=/dev/fit0 rootwait
++bootcmd=if pstore check ; then run boot_recovery ; else run boot_emmc ; fi
++bootconf=config-1#mt7981b-globitel-bt-r320
++bootdelay=0
++bootfile=openwrt-mediatek-filogic-globitel_bt-r320-initramfs-recovery.itb
++bootfile_bl2=openwrt-mediatek-filogic-globitel_bt-r320-emmc-preloader.bin
++bootfile_fip=openwrt-mediatek-filogic-globitel_bt-r320-emmc-bl31-uboot.fip
++bootfile_upg=openwrt-mediatek-filogic-globitel_bt-r320-squashfs-sysupgrade.itb
++bootmenu_confirm_return=askenv - Press ENTER to return to menu ; bootmenu 60
++bootmenu_default=0
++bootmenu_delay=0
++bootmenu_title=       ;34m( ( ( 9mOpenWrt;34m ) ) )  ;36m[eMMC]m
++bootmenu_0=Initialize environment.=run _firstboot
++bootmenu_0d=Run default boot command.=run boot_default
++bootmenu_1=Boot system via TFTP.=run boot_tftp ; run bootmenu_confirm_return
++bootmenu_2=Boot production system from eMMC.=run boot_production ; run bootmenu_confirm_return
++bootmenu_3=Boot recovery system from eMMC.=run boot_recovery ; run bootmenu_confirm_return
++bootmenu_4=Load production system via TFTP then write to eMMC.=setenv noboot 1 ; setenv replacevol 1 ; run boot_tftp_production ; setenv noboot ; setenv replacevol ; run bootmenu_confirm_return
++bootmenu_5=Load recovery system via TFTP then write to eMMC.=setenv noboot 1 ; setenv replacevol 1 ; run boot_tftp_recovery ; setenv noboot ; setenv replacevol ; run bootmenu_confirm_return
++bootmenu_6=mLoad BL31+U-Boot FIP via TFTP then write to eMMC.m=run boot_tftp_write_fip ; run bootmenu_confirm_return
++bootmenu_7=mLoad BL2 preloader via TFTP then write to eMMC.m=run boot_tftp_write_bl2 ; run bootmenu_confirm_return
++bootmenu_8=Reboot.=reset
++bootmenu_9=Reset all settings to factory defaults.=run reset_factory ; reset
++boot_first=if button reset ; then run boot_tftp_recovery ; setenv flag_recover 1 ; run boot_default ; fi ; bootmenu
++boot_default=if env exists flag_recover ; then else run bootcmd ; fi ; run boot_recovery ; setenv replacevol 1 ; run boot_tftp_forever
++boot_production=run emmc_read_production && bootm $loadaddr#$bootconf
++boot_recovery=run emmc_read_recovery && bootm $loadaddr#$bootconf
++boot_emmc=run boot_production ; run boot_recovery
++boot_tftp_forever=while true ; do run boot_tftp_recovery ; sleep 1 ; done
++boot_tftp_production=tftpboot $loadaddr $bootfile_upg && env exists replacevol && iminfo $loadaddr && run emmc_write_production ; if env exists noboot ; then else bootm $loadaddr#$bootconf ; fi
++boot_tftp_recovery=tftpboot $loadaddr $bootfile && env exists replacevol && iminfo $loadaddr && run emmc_write_recovery ; if env exists noboot ; then else bootm $loadaddr#$bootconf ; fi
++boot_tftp_write_fip=tftpboot $loadaddr $bootfile_fip && run emmc_write_fip
++boot_tftp_write_bl2=tftpboot $loadaddr $bootfile_bl2 && run emmc_write_bl2
++boot_tftp=tftpboot $loadaddr $bootfile && bootm $loadaddr#$bootconf
++mmc_write_vol=imszb $loadaddr image_size && test 0x$image_size -le 0x$part_size && mmc erase 0x$part_addr 0x$image_size && mmc write $loadaddr 0x$part_addr 0x$image_size
++mmc_read_vol=mmc read $loadaddr $part_addr 0x100 && imszb $loadaddr image_size && test 0x$image_size -le 0x$part_size && mmc read $loadaddr 0x$part_addr 0x$image_size && setexpr filesize $image_size * 0x200
++part_default=production
++part_recovery=recovery
++reset_factory=eraseenv && reset
++emmc_read_production=part start mmc 0 $part_default part_addr && part size mmc 0 $part_default part_size && run mmc_read_vol
++emmc_read_recovery=part start mmc 0 $part_recovery part_addr && part size mmc 0 $part_recovery part_size && run mmc_read_vol
++emmc_write_bl2=mmc partconf 0 1 1 1 && mmc erase 0x0 0x400 && mmc write $fileaddr 0x0 0x400 ; mmc partconf 0 1 1 0
++emmc_write_fip=mmc erase 0x3400 0x2000 && mmc write $fileaddr 0x3400 0x2000 && mmc erase 0x2000 0x800
++emmc_write_production=part start mmc 0 $part_default part_addr && part size mmc 0 $part_default part_size && run mmc_write_vol
++emmc_write_recovery=part start mmc 0 $part_recovery part_addr && part size mmc 0 $part_recovery part_size && run mmc_write_vol
++_init_env=setenv _init_env ; setenv _create_env ; saveenv ; saveenv
++_firstboot=setenv _firstboot ; run _switch_to_menu ; run _init_env ; run boot_first
++_switch_to_menu=setenv _switch_to_menu ; setenv bootdelay 3 ; setenv bootmenu_delay 3 ; setenv bootmenu_0 $bootmenu_0d ; setenv bootmenu_0d ; run _bootmenu_update_title
++_bootmenu_update_title=setenv _bootmenu_update_title ; setenv bootmenu_title "$bootmenu_title       m$verm"
+--- /dev/null
++++ b/configs/mt7981_globitel_bt-r320_defconfig
+@@ -0,0 +1,126 @@
++CONFIG_ARM=y
++CONFIG_ARM_SMCCC=y
++CONFIG_SYS_HAS_NONCACHED_MEMORY=y
++CONFIG_POSITION_INDEPENDENT=y
++CONFIG_ARCH_MEDIATEK=y
++CONFIG_TEXT_BASE=0x41e00000
++CONFIG_SYS_MALLOC_F_LEN=0x4000
++CONFIG_NR_DRAM_BANKS=1
++CONFIG_ENV_SIZE=0x40000
++CONFIG_ENV_OFFSET=0x400000
++CONFIG_DEFAULT_DEVICE_TREE="mt7981-globitel-bt-r320"
++CONFIG_OF_LIBFDT_OVERLAY=y
++CONFIG_TARGET_MT7981=y
++CONFIG_SYS_LOAD_ADDR=0x46000000
++CONFIG_PRE_CON_BUF_ADDR=0x4007EF00
++CONFIG_DEBUG_UART_BASE=0x11002000
++CONFIG_DEBUG_UART_CLOCK=40000000
++CONFIG_ENV_OFFSET_REDUND=0x440000
++CONFIG_PCI=y
++CONFIG_DEBUG_UART=y
++CONFIG_AHCI=y
++CONFIG_FIT=y
++CONFIG_BOOTDELAY=30
++CONFIG_AUTOBOOT_KEYED=y
++CONFIG_AUTOBOOT_MENU_SHOW=y
++CONFIG_DEFAULT_FDT_FILE="mediatek/mt7981-globitel-bt-r320.dtb"
++CONFIG_LOGLEVEL=7
++CONFIG_PRE_CONSOLE_BUFFER=y
++CONFIG_LOG=y
++# CONFIG_BOARD_INIT is not set
++CONFIG_BOARD_LATE_INIT=y
++CONFIG_HUSH_PARSER=y
++CONFIG_SYS_PROMPT="MT7981> "
++CONFIG_CMD_CPU=y
++CONFIG_CMD_LICENSE=y
++# CONFIG_CMD_BOOTEFI_BOOTMGR is not set
++CONFIG_CMD_BOOTMENU=y
++CONFIG_CMD_ASKENV=y
++CONFIG_CMD_ERASEENV=y
++CONFIG_CMD_ENV_FLAGS=y
++CONFIG_CMD_RNG=y
++CONFIG_CMD_STRINGS=y
++CONFIG_CMD_DM=y
++CONFIG_CMD_GPIO=y
++CONFIG_CMD_PWM=y
++CONFIG_CMD_GPT=y
++CONFIG_CMD_MMC=y
++CONFIG_CMD_PART=y
++CONFIG_CMD_PCI=y
++CONFIG_CMD_USB=y
++CONFIG_CMD_TFTPSRV=y
++CONFIG_CMD_RARP=y
++CONFIG_CMD_CDP=y
++CONFIG_CMD_SNTP=y
++CONFIG_CMD_LINK_LOCAL=y
++CONFIG_CMD_DHCP=y
++CONFIG_CMD_DNS=y
++CONFIG_CMD_PING=y
++CONFIG_CMD_PXE=y
++CONFIG_CMD_CACHE=y
++CONFIG_CMD_PSTORE=y
++CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
++CONFIG_CMD_UUID=y
++CONFIG_CMD_HASH=y
++CONFIG_CMD_SMC=y
++CONFIG_CMD_EXT4=y
++CONFIG_CMD_FAT=y
++CONFIG_CMD_FS_GENERIC=y
++CONFIG_CMD_FS_UUID=y
++CONFIG_OF_EMBED=y
++CONFIG_ENV_OVERWRITE=y
++CONFIG_ENV_IS_IN_MMC=y
++CONFIG_ENV_REDUNDANT=y
++CONFIG_ENV_RELOC_GD_ENV_ADDR=y
++CONFIG_ENV_USE_DEFAULT_ENV_TEXT_FILE=y
++CONFIG_ENV_DEFAULT_ENV_TEXT_FILE="defenvs/mt7981_globitel_bt-r320_env"
++CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
++CONFIG_VERSION_VARIABLE=y
++CONFIG_NETCONSOLE=y
++CONFIG_USE_IPADDR=y
++CONFIG_IPADDR="192.168.1.1"
++CONFIG_USE_SERVERIP=y
++CONFIG_SERVERIP="192.168.1.254"
++CONFIG_NET_RANDOM_ETHADDR=y
++CONFIG_SCSI_AHCI=y
++CONFIG_AHCI_PCI=y
++CONFIG_MTK_AHCI=y
++CONFIG_BUTTON=y
++CONFIG_BUTTON_GPIO=y
++CONFIG_CLK=y
++CONFIG_GPIO_HOG=y
++CONFIG_LED=y
++CONFIG_LED_BLINK=y
++CONFIG_LED_GPIO=y
++CONFIG_SUPPORT_EMMC_BOOT=y
++CONFIG_MMC_HS200_SUPPORT=y
++CONFIG_MMC_MTK=y
++CONFIG_PHY_FIXED=y
++CONFIG_MEDIATEK_ETH=y
++CONFIG_PCIE_MEDIATEK=y
++CONFIG_PHY=y
++CONFIG_PHY_MTK_TPHY=y
++CONFIG_PINCTRL=y
++CONFIG_PINCONF=y
++CONFIG_PINCTRL_MT7622=y
++CONFIG_PINCTRL_MT7981=y
++CONFIG_POWER_DOMAIN=y
++CONFIG_MTK_POWER_DOMAIN=y
++CONFIG_DM_REGULATOR=y
++CONFIG_DM_REGULATOR_FIXED=y
++CONFIG_DM_REGULATOR_GPIO=y
++CONFIG_DM_PWM=y
++CONFIG_PWM_MTK=y
++CONFIG_RAM=y
++CONFIG_DM_RNG=y
++CONFIG_RNG_MTK_V2=y
++CONFIG_SCSI=y
++CONFIG_DM_SERIAL=y
++CONFIG_SERIAL_RX_BUFFER=y
++CONFIG_MTK_SERIAL=y
++CONFIG_SPI=y
++CONFIG_USB=y
++CONFIG_USB_XHCI_HCD=y
++CONFIG_USB_XHCI_MTK=y
++CONFIG_USB_STORAGE=y
++CONFIG_LZO=y
++CONFIG_ZSTD=y
++CONFIG_HEXDUMP=y
diff --git a/package/boot/uboot-tools/uboot-envtools/files/mediatek_filogic b/package/boot/uboot-tools/uboot-envtools/files/mediatek_filogic
index b9f848e65e..0681105f49 100644
--- a/package/boot/uboot-tools/uboot-envtools/files/mediatek_filogic
+++ b/package/boot/uboot-tools/uboot-envtools/files/mediatek_filogic
@@ -68,6 +68,7 @@ glinet,gl-mt2500-airoha|\
 glinet,gl-mt6000|\
 glinet,gl-x3000|\
 glinet,gl-xe3000|\
+globitel,bt-r320|\
 huasifei,wh3000|\
 nradio,c8-668gl)
 	ubootenv_add_mmc "u-boot-env" "" "0x0" "0x80000"
diff --git a/target/linux/mediatek/dts/mt7981b-globitel-bt-r320.dts b/target/linux/mediatek/dts/mt7981b-globitel-bt-r320.dts
new file mode 100644
index 0000000000..c35408f1e5
--- /dev/null
+++ b/target/linux/mediatek/dts/mt7981b-globitel-bt-r320.dts
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+#include "mt7981b.dtsi"
+
+/ {
+	model = "Globitel BT-R320";
+	compatible = "globitel,bt-r320", "mediatek,mt7981";
+
+	aliases {
+		serial0 = &uart0;
+		label-mac-device = &gmac0;
+	};
+
+	chosen {
+		bootargs = "root=PARTLABEL=rootfs rootwait";
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0 0x40000000 0 0x40000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		button-wps {
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&pio 0 GPIO_ACTIVE_LOW>;
+		};
+
+		button-reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_WLAN_2GHZ;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 34 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		led-1 {
+			function = LED_FUNCTION_WLAN_5GHZ;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 35 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+};
+
+&eth {
+	status = "okay";
+
+	gmac0: mac@0 {
+		compatible = "mediatek,eth-mac";
+		reg = <0>;
+		phy-mode = "2500base-x";
+		nvmem-cells = <&macaddr_factory_2a 0>;
+		nvmem-cell-names = "mac-address";
+		fixed-link {
+			speed = <2500>;
+			full-duplex;
+			pause;
+		};
+	};
+
+	mdio: mdio-bus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		switch@0 {
+			compatible = "mediatek,mt7531";
+			reg = <31>;
+			reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&pio>;
+			interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@1 {
+					reg = <1>;
+					label = "lan1";
+				};
+
+				port@2 {
+					reg = <2>;
+					label = "lan2";
+				};
+
+				port@3 {
+					reg = <3>;
+					label = "lan3";
+				};
+
+				port@4 {
+					reg = <4>;
+					label = "wan";
+					nvmem-cells = <&macaddr_factory_24 0>;
+					nvmem-cell-names = "mac-address";
+				};
+
+				port@6 {
+					reg = <6>;
+					label = "cpu";
+					ethernet = <&gmac0>;
+					phy-mode = "2500base-x";
+					fixed-link {
+						speed = <2500>;
+						full-duplex;
+						pause;
+					};
+				};
+			};
+		};
+	};
+};
+
+&mmc0 {
+	status = "okay";
+	pinctrl-names = "default", "state_uhs";
+	pinctrl-0 = <&mmc0_pins_default>;
+	pinctrl-1 = <&mmc0_pins_uhs>;
+	bus-width = <8>;
+	max-frequency = <52000000>;
+	vmmc-supply = <&reg_3p3v>;
+	cap-mmc-highspeed;
+	non-removable;
+	no-sd;
+	no-sdio;
+
+	card@0 {
+		compatible = "mmc-card";
+		reg = <0>;
+
+		block {
+			compatible = "block-device";
+
+			partitions {
+				block-partition-factory {
+					partname = "factory";
+
+					nvmem-layout {
+						compatible = "fixed-layout";
+						#address-cells = <1>;
+						#size-cells = <1>;
+
+						eeprom_factory_0: eeprom@0 {
+							reg = <0x0 0x1000>;
+						};
+
+						macaddr_factory_24: macaddr@24 {
+							compatible = "mac-base";
+							reg = <0x24 0x6>;
+							#nvmem-cell-cells = <1>;
+						};
+
+						macaddr_factory_2a: macaddr@2a {
+							compatible = "mac-base";
+							reg = <0x2a 0x6>;
+							#nvmem-cell-cells = <1>;
+						};
+					};
+				};
+			};
+		};
+	};
+};
+
+&pio {
+	mmc0_pins_default: mmc0-pins-default {
+		mux {
+			function = "flash";
+			groups = "emmc_45";
+		};
+	};
+
+	mmc0_pins_uhs: mmc0-pins-uhs {
+		mux {
+			function = "flash";
+			groups = "emmc_45";
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};
+
+&wifi {
+	nvmem-cells = <&eeprom_factory_0>;
+	nvmem-cell-names = "eeprom";
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&xhci {
+	status = "okay";
+};
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 534f98940a..14bc06ad94 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
@@ -53,6 +53,7 @@ mediatek_setup_interfaces()
 	creatlentem,clt-r30b1|\
 	creatlentem,clt-r30b1-112m|\
 	cudy,wr3000-v1|\
+	globitel,bt-r320|\
 	jcg,q30-pro|\
 	keenetic,kn-3711|\
 	keenetic,kn-3811|\
diff --git a/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac b/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac
index 25b363b906..9ba8787ffa 100644
--- a/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac
+++ b/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac
@@ -126,6 +126,11 @@ case "$board" in
 		[ "$PHYNBR" = "0" ] && echo "$addr" > /sys${DEVPATH}/macaddress
 		[ "$PHYNBR" = "1" ] && macaddr_add $addr 1 > /sys${DEVPATH}/macaddress
 		;;
+	globitel,bt-r320)
+		addr=$(mmc_get_mac_binary factory 0x4)
+		[ "$PHYNBR" = "0" ] && echo "$addr" > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" = "1" ] && macaddr_setbit_la "$addr" > /sys${DEVPATH}/macaddress
+		;;
 	h3c,magic-nx30-pro)
 		addr=$(mtd_get_mac_ascii pdt_data_1 ethaddr)
 		[ "$PHYNBR" = "0" ] && macaddr_add $addr 2 > /sys${DEVPATH}/macaddress
diff --git a/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh b/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh
index 1d8d4f02e8..ae781d73e0 100644
--- a/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh
@@ -196,6 +196,7 @@ platform_do_upgrade() {
 	glinet,gl-mt6000|\
 	glinet,gl-x3000|\
 	glinet,gl-xe3000|\
+	globitel,bt-r320|\
 	huasifei,wh3000|\
 	huasifei,wh3000-pro-emmc|\
 	smartrg,sdg-8612|\
@@ -435,6 +436,7 @@ platform_copy_config() {
 	glinet,gl-mt6000|\
 	glinet,gl-x3000|\
 	glinet,gl-xe3000|\
+	globitel,bt-r320|\
 	huasifei,wh3000|\
 	huasifei,wh3000-pro-emmc|\
 	jdcloud,re-cp-03|\
diff --git a/target/linux/mediatek/image/filogic.mk b/target/linux/mediatek/image/filogic.mk
index 31713fd929..cd04fe6b7b 100644
--- a/target/linux/mediatek/image/filogic.mk
+++ b/target/linux/mediatek/image/filogic.mk
@@ -1770,6 +1770,29 @@ define Device/glinet_gl-xe3000
 endef
 TARGET_DEVICES += glinet_gl-xe3000
 
+define Device/globitel_bt-r320
+  DEVICE_VENDOR := Globitel
+  DEVICE_MODEL := BT-R320
+  DEVICE_DTS := mt7981b-globitel-bt-r320
+  DEVICE_DTS_DIR := ../dts
+  DEVICE_PACKAGES := kmod-usb3 kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware f2fsck mkf2fs
+  KERNEL_LOADADDR := 0x44000000
+  KERNEL := kernel-bin | lzma
+  KERNEL_INITRAMFS := kernel-bin | lzma | \
+	fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd | pad-to 64k
+  KERNEL_INITRAMFS_SUFFIX := -initramfs-recovery.itb
+  IMAGES := sysupgrade.itb
+  IMAGE_SIZE := $$(shell expr 64 + $$(CONFIG_TARGET_ROOTFS_PARTSIZE))m
+  IMAGE/sysupgrade.itb := append-kernel | \
+	fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb external-static-with-rootfs | \
+	pad-rootfs | append-metadata
+  ARTIFACTS := gpt.bin preloader.bin bl31-uboot.fip
+  ARTIFACT/gpt.bin := mt798x-gpt emmc
+  ARTIFACT/preloader.bin := mt7981-bl2 emmc-ddr4
+  ARTIFACT/bl31-uboot.fip := mt7981-bl31-uboot globitel_bt-r320
+endef
+TARGET_DEVICES += globitel_bt-r320
+
 define Device/h3c_magic-nx30-pro
   DEVICE_VENDOR := H3C
   DEVICE_MODEL := Magic NX30 Pro