ath79: add support for TP-Link Archer C7 v1

TP-Link Archer C7 v1 is a dual band router
based on Qualcomm/Atheros QCA9558 + QCA9880.

Specification:

 - 720 MHz CPU
 - 128 MB of RAM (Various chips)
 - 8 MB of FLASH (Various chips)
 - SoC QCA9558 integrated 3T3R 2.4 GHz Wi-Fi
 - minipcie slot with 3T3R 5 GHz QCA9880-AR1A (unsupported by ath10k!)
 - 5x 10/100/1000 Mbps Ethernet (AR8327N Switch)
 - 10x LEDs, 2x software buttons

For further informwation on the device, visit the wiki:
<https://openwrt.org/toh/tp-link/archer-c7-1750>

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

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

@@ -80,6 +80,7 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth0" "3:lan:1" "5:lan:2" "4:wan"
 		;;
+	tplink,archer-c7-v1|\
 	tplink,archer-c7-v2|\
 	tplink,tl-wdr4900-v2)
 		ucidef_add_switch "switch0" \

target/linux/ath79/dts/qca9558_tplink_archer-c7-v1.dts

@@ -0,0 +1,46 @@
+// 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 "qca9558_tplink_archer-c7.dtsi"
+
+/ {
+	compatible = "tplink,archer-c7-v1", "qca,qca9558";
+	model = "TP-Link Archer C7 Version 1";
+};
+
+&gpio_keys {
+	rfkill {
+		gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		linux,code = <KEY_RFKILL>;
+		linux,input-type = <EV_SW>;
+		debounce-interval = <60>;
+	};
+};
+
+&gpio_leds {
+	wlan5g {
+		label = "tp-link:green:wlan5g";
+		gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		default-state = "off";
+		linux,default-trigger = "phy0tpt";
+	};
+};
+
+&mtdparts {
+	uboot: u-boot@0 {
+		reg = <0x000000 0x020000>;
+		read-only;
+	};
+
+	firmware@20000 {
+		reg = <0x020000 0x7d0000>;
+	};
+
+	art: art@7f0000 {
+		reg = <0x7f0000 0x010000>;
+		read-only;
+	};
+};

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

@@ -1,5 +1,14 @@
 include ./common-tp-link.mk
 
+define Device/tplink_archer-c7-v1
+  $(Device/tplink-8mlzma)
+  ATH_SOC := qca9558
+  DEVICE_TITLE := TP-LINK Archer C7 v1
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k ath10k-firmware-qca988x
+  TPLINK_HWID := 0x75000001
+endef
+TARGET_DEVICES += tplink_archer-c7-v1
+
 define Device/tplink_archer-c7-v2
   $(Device/tplink-16mlzma)
   ATH_SOC := qca9558