ath79: add support for TP-Link TL-WA860RE v1

This ports support for the TL-WA860RE v1 range extender from ar71xx
to ath79.

Specifications:
  Board: AP123 / AR9341 rev. 3
  Flash/RAM: 4/32 MiB
  CPU: 535 MHz
  WiFi: 2.4 GHz b/g/n
  Ethernet: 1 port (100M)
  Two external antennas

Flashing instructions:
  Upload the factory image via the vendor firmware upgrade option.

Recovery:
  Note that this device does not provide TFTP via ethernet like many
  other TP-Link devices do. You will have to open the case if you
  require recovery beyond failsafe.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Tested-by: Sebastian Knapp <sebastian4842@outlook.com>
(cherry picked from commit 385f4868bc)

target/linux/ath79/base-files/etc/board.d/01_leds

@@ -174,7 +174,8 @@ tplink,re450-v2)
 	ucidef_set_led_netdev "lan_link" "LAN Link" "tp-link:green:lan_link" "eth0" "link"
 	;;
 tplink,tl-mr3020-v1|\
-tplink,tl-mr3040-v2)
+tplink,tl-mr3040-v2|\
+tplink,tl-wa860re-v1)
 	ucidef_set_led_netdev "lan" "LAN" "tp-link:green:lan" "eth0"
 	;;
 tplink,tl-wa850re-v1)

target/linux/ath79/base-files/etc/board.d/02_network

@@ -32,6 +32,7 @@ ath79_setup_interfaces()
 	tplink,tl-mr3020-v1|\
 	tplink,tl-mr3040-v2|\
 	tplink,tl-wa850re-v1|\
+	tplink,tl-wa860re-v1|\
 	tplink,tl-wa901nd-v2|\
 	tplink,tl-wr703n|\
 	ubnt,bullet-m|\

target/linux/ath79/dts/ar9341_tplink_tl-wa860re-v1.dts

@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "ar9341_tplink_tl-wa.dtsi"
+
+/ {
+	model = "TP-Link TL-WA860RE v1";
+	compatible = "tplink,tl-wa860re-v1", "qca,ar9341";
+
+	aliases {
+		led-boot = &led_power_green;
+		led-failsafe = &led_power_orange;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_orange;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "WPS";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		onoff {
+			label = "ONOFF";
+			linux,code = <BTN_1>;
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		lan {
+			label = "tp-link:green:lan";
+			gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+		};
+
+		led_power_green: power_green {
+			label = "tp-link:green:power";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		led_power_orange: power_orange {
+			label = "tp-link:orange:power";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan_green {
+			label = "tp-link:green:wlan";
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		wlan_orange {
+			label = "tp-link:orange:wlan";
+			gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
+		};
+	};
+};

target/linux/ath79/image/tiny-tp-link.mk

@@ -61,6 +61,15 @@ define Device/tplink_tl-wa850re-v1
 endef
 TARGET_DEVICES += tplink_tl-wa850re-v1
 
+define Device/tplink_tl-wa860re-v1
+  $(Device/tplink-4mlzma)
+  ATH_SOC := ar9341
+  DEVICE_TITLE := TP-Link TL-WA860RE v1
+  TPLINK_HWID := 0x08600001
+  SUPPORTED_DEVICES += tl-wa860re
+endef
+TARGET_DEVICES += tplink_tl-wa860re-v1
+
 define Device/tplink_tl-wa901nd-v2
   $(Device/tplink-4m)
   ATH_SOC := ar9132