add support for Mikrotik LtAP LTE6

target/linux/ramips/dts/mt7621_mikrotik_routerboard-ltap-lte6.dts

@@ -0,0 +1,187 @@
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "mikrotik,routerboard-ltap-lte6", "mediatek,mt7621-soc";
+	model = "MikroTik RouterBOARD LTAP LTE6";
+
+	aliases {
+		led-boot = &led_usr;
+		led-failsafe = &led_usr;
+		led-running = &led_usr;
+		led-upgrade = &led_usr;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_usr: usr {
+			label = "routerboard-ltap-lte6:green:usr";
+			gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		res {
+			label = "res";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	pcie0_vcc_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "pcie0_vcc";
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	pcie1_vcc_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "pcie1_vcc";
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	pcie2_vcc_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "pcie2_vcc";
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio 11 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	usb_vcc_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_vcc";
+
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio 12 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+};
+
+&spi0 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <3125000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "RouterBoot";
+				reg = <0x0 0x40000>;
+				read-only;
+				compatible = "mikrotik,routerboot-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "bootloader1";
+					reg = <0x0 0x0>;
+					read-only;
+				};
+
+				hard_config: hard_config {
+					read-only;
+				};
+
+				partition@10000 {
+					label = "bootloader2";
+					reg = <0x10000 0xf000>;
+					read-only;
+				};
+
+				soft_config {
+				};
+
+				partition@30000 {
+					label = "bios";
+					reg = <0x30000 0x1000>;
+					read-only;
+				};
+			};
+		};
+	};
+
+	flash@1 {
+		compatible = "jedec,spi-nor";
+		reg = <1>;
+		// XXX empiric value to obtain actual 10MHz SCK at the chip
+		spi-max-frequency = <3125000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			// Region <0x0 0x40000> seems reserved by OEM
+
+			partition@40000 {
+				compatible = "mikrotik,minor";
+				label = "firmware";
+				reg = <0x040000 0xFC0000>;
+			};
+		};
+	};
+};
+
+&switch0 {
+	ports {
+		port@0 {
+			status = "okay";
+			label = "lan";
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "uart2", "wdt";
+		function = "gpio";
+	};
+};
+
+&sdhci {
+	status = "okay";
+};
+
+&i2c {
+	status = "okay";
+};
+
+&pcie {
+	status = "okay";
+};

target/linux/ramips/image/mt7621.mk

@@ -531,6 +531,13 @@ define Device/mikrotik_routerboard-750gr3
 endef
 TARGET_DEVICES += mikrotik_routerboard-750gr3
 
+define Device/mikrotik_routerboard-ltap-lte6
+  $(Device/MikroTik)
+  DEVICE_MODEL := RouterBOARD LTAP LTE6
+  SUPPORTED_DEVICES += mikrotik,rbltaplte6
+endef
+TARGET_DEVICES += mikrotik_routerboard-ltap-lte6
+
 define Device/mikrotik_routerboard-m11g
   $(Device/MikroTik)
   DEVICE_MODEL := RouterBOARD M11G

target/linux/ramips/mt7621/base-files/etc/board.d/01_leds

@@ -41,6 +41,7 @@ linksys,ea7500-v2)
 	ucidef_set_led_netdev "lan4" "lan4 link" "$boardname:green:lan4" "lan4" "link"
 	ucidef_set_led_netdev "wan" "wan link" "$boardname:green:wan" "wan" "link"
 	;;
+mikrotik,routerboard-ltap-lte6|\
 mikrotik,routerboard-m11g)
 	ucidef_set_rssimon "wlan0" "200000" "1"
 	ucidef_set_led_rssi "rssilow" "RSSILOW" "$boardname:green:rssi0" "wlan0" "1" "100"

target/linux/ramips/mt7621/base-files/etc/board.d/02_network

@@ -9,6 +9,7 @@ ramips_setup_interfaces()
 	local board="$1"
 
 	case $board in
+	mikrotik,routerboard-ltap-lte6|\
 	asiarf,ap7621-001)
 		ucidef_set_interfaces_lan_wan "lan" "wan"
 		;;
@@ -99,6 +100,7 @@ ramips_setup_macs()
 		;;
 	mikrotik,routerboard-750gr3|\
 	mikrotik,routerboard-m11g|\
+	mikrotik,routerboard-ltap-lte6|\
 	mikrotik,routerboard-m33g)
 		label_mac=$(cat "/sys/firmware/mikrotik/hard_config/mac_base")
 		wan_mac=$label_mac

target/linux/ramips/mt7621/base-files/etc/uci-defaults/04_led_migration

@@ -9,6 +9,8 @@ boardonly="${board##*,}"
 case "$board" in
 mikrotik,routerboard-750gr3)
 	migrate_leds "^rb750gr3:=$boardonly:"
+mikrotik,routerboard-ltap-lte6)
+	migrate_leds "^rbltaplte6:=$boardonly:"
 mikrotik,routerboard-m11g)
 	migrate_leds "^rbm11g:=$boardonly:"
 mikrotik,routerboard-m33g)

target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh

@@ -29,6 +29,9 @@ platform_do_upgrade() {
 		;;
 	mikrotik,routerboard-750gr3|\
 	mikrotik,routerboard-m11g|\
+	mikrotik,routerboard-ltap-lte6)
+		[ -z "$(rootfs_type)" ] && mtd erase firmware
+		;;
 	mikrotik,routerboard-m33g)
 		[ -z "$(rootfs_type)" ] && mtd erase firmware
 		;;