ath79: add support for TP-Link TL-WDR4900 v2

Specification:
- SoC: Qualcomm Atheros QCA9558
- Flash: 8 MB
- RAM: 128 MB
- Ethernet: AR8327N with 5 GE ports.
- Wireless radio: QCA9558 for 2.4G and AR9580 for 5G.

Flash instruction:
  Upload the generated factory firmware on web interface.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>

4 files changed, 245 insertions, 2 deletions

diff --git a/target/linux/ath79/base-files/etc/board.d/02_network b/target/linux/ath79/base-files/etc/board.d/02_network
index bbb30aa..79b39b2 100755
--- a/target/linux/ath79/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/base-files/etc/board.d/02_network
@@ -69,7 +69,8 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth0" "3:lan:1" "5:lan:2" "4:wan"
 		;;
-	tplink,archer-c7-v2)
+	tplink,archer-c7-v2|\
+	tplink,tl-wdr4900-v2)
 		ucidef_add_switch "switch0" \
 			"0@eth1" "2:lan" "3:lan" "4:lan" "5:lan" "6@eth0" "1:wan"
 		;;
diff --git a/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index e8adcf6..5d52af7 100644
--- a/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -52,7 +52,8 @@ case "$FIRMWARE" in
 		;;
 	ocedo,raccoon|\
 	tplink,tl-wdr3600|\
-	tplink,tl-wdr4300)
+	tplink,tl-wdr4300|\
+	tplink,tl-wdr4900-v2)
 		ath9k_eeprom_extract "art" 20480 1088
 		;;
 	netgear,wnr612-v2|\
diff --git a/target/linux/ath79/dts/qca9558_tplink_tl-wdr4900-v2.dts b/target/linux/ath79/dts/qca9558_tplink_tl-wdr4900-v2.dts
new file mode 100644
index 0000000..412cf2b
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_tplink_tl-wdr4900-v2.dts
@@ -0,0 +1,232 @@
+// 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 "qca9557.dtsi"
+
+/ {
+	compatible = "tplink,tl-wdr4900-v2", "qca,qca9558";
+	model = "TP-Link TL-WDR4900 v2";
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	aliases {
+		led-status = &led_system;
+	};
+
+	gpio_leds: leds {
+		compatible = "gpio-leds";
+
+		led_system: system {
+			label = "tp-link:blue:system";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		usb1 {
+			label = "tp-link:green:usb1";
+			gpios = <&gpio 19 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			trigger-sources = <&hub_port1>;
+			linux,default-trigger = "usbport";
+		};
+
+		usb2 {
+			label = "tp-link:green:usb2";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			trigger-sources = <&hub_port0>;
+			linux,default-trigger = "usbport";
+		};
+
+		wlan2g {
+			label = "tp-link:blue:wlan2g";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "phy0tpt";
+		};
+
+		qss {
+			label = "tp-link:blue:qss";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	 ath9k-leds {
+		compatible = "gpio-leds";
+
+		wlan5g {
+			label = "tp-link:blue:wlan5g";
+			gpios = <&ath9k 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "Reset button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	gpio-export {
+		compatible = "gpio-export";
+
+		gpio_usb1_power {
+			gpio-export,name = "tp-link:power:usb1";
+			gpio-export,output = <1>;
+			gpios = <&gpio 21 GPIO_ACTIVE_HIGH>;
+		};
+
+		gpio_usb2_power {
+			gpio-export,name = "tp-link:power:usb2";
+			gpio-export,output = <1>;
+			gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+		};
+
+	};
+};
+
+&pcie1 {
+	status = "okay";
+
+	ath9k: wifi@0,0 {
+		compatible = "pci168c,0033";
+		reg = <0x0000 0 0 0 0>;
+		mtd-mac-address = <&uboot 0x1fc00>;
+		mtd-mac-address-increment = <(-2)>;
+		qca,no-eeprom;
+		#gpio-cells = <2>;
+		gpio-controller;
+	};
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb_phy0 {
+	status = "okay";
+};
+
+&usb0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	hub_port0: port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
+
+&usb_phy1 {
+	status = "okay";
+};
+
+&usb1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	hub_port1: port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
+
+&spi {
+	status = "okay";
+	num-cs = <1>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			uboot: partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				label = "firmware";
+				reg = <0x020000 0x7d0000>;
+			};
+
+			art: partition@7f0000 {
+				label = "art";
+				reg = <0x7f0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+
+		qca,ar8327-initvals = <
+			0x04 0x00080080 /* PORT0 PAD MODE CTRL */
+			0x0c 0x07600000 /* PORT6 PAD MODE CTRL */
+			0x50 0xc737c737 /* LED_CTRL0 */
+			0x54 0x00000000 /* LED_CTRL1 */
+			0x58 0x00000000 /* LED_CTRL2 */
+			0x5c 0x0030c300 /* LED_CTRL3 */
+			0x7c 0x0000007e /* PORT0_STATUS */
+			0x94 0x0000007e /* PORT6 STATUS */
+		>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <1>;
+	phy-handle = <&phy0>;
+	pll-data = <0x56000000 0x00000101 0x00001616>;
+
+	gmac-config {
+		device = <&gmac>;
+		rgmii-enabled = <1>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+	pll-data = <0x03000101 0x00000101 0x00001616>;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&wmac {
+	status = "okay";
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <(-1)>;
+};
diff --git a/target/linux/ath79/image/generic-tp-link.mk b/target/linux/ath79/image/generic-tp-link.mk
index 623252e..0f8bfff 100644
--- a/target/linux/ath79/image/generic-tp-link.mk
+++ b/target/linux/ath79/image/generic-tp-link.mk
@@ -49,6 +49,15 @@ define Device/tplink_tl-wdr4300
 endef
 TARGET_DEVICES += tplink_tl-wdr4300
 
+define Device/tplink_tl-wdr4900-v2
+  $(Device/tplink-8mlzma)
+  ATH_SOC := qca9558
+  DEVICE_TITLE := TP-LINK TL-WDR4900 v2
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-usb-ledtrig-usbport
+  TPLINK_HWID := 0x49000002
+endef
+TARGET_DEVICES += tplink_tl-wdr4900-v2
+
 define Device/tplink_tl-wr1043nd-v1
   $(Device/tplink-8m)
   ATH_SOC := ar9132