ath79: port TP-Link TL-WR741ND v4 and TL-WR740ND v4

This patch ports the TP-Link TL-WR741ND v4 and TL-WR740ND v4 to the
ath79 target.

Because the two devices share the same hw layout, this patch adds a common
.dtsi which is included by the two .dts.

Signed-off-by: Rocco Folino <rocco@folino.io>

1 files changed, 173 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/ar9331_tl-wr741nd-v4.dtsi b/target/linux/ath79/dts/ar9331_tl-wr741nd-v4.dtsi
new file mode 100644
index 0000000000..615d317e41
--- /dev/null
+++ b/target/linux/ath79/dts/ar9331_tl-wr741nd-v4.dtsi
@@ -0,0 +1,173 @@
+// 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 "ar9331.dtsi"
+
+/ {
+	compatible = "tplink,tl-wr741n-v4", "qca,ar9331";
+	model = "TP-Link TL-WR741N/ND v4";
+
+	aliases {
+		serial0 = &uart;
+		led-status = &led_system;
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 26 GPIO_ACTIVE_HIGH>;
+			debounce-interval = <60>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&switch_led_pins>;
+
+		lan1 {
+			label = "tp-link:green:lan1";
+			gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
+		};
+
+		lan2 {
+			label = "tp-link:green:lan2";
+			gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+		};
+
+		lan3 {
+			label = "tp-link:green:lan3";
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+		};
+
+		lan4 {
+			label = "tp-link:green:lan4";
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		};
+
+		qss {
+			label = "tp-link:green:qss";
+			gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_system: system {
+			label = "tp-link:green:system";
+			gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
+		};
+
+		wan {
+			label = "tp-link:green:wan";
+			gpios = <&gpio 13 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan {
+			label = "tp-link:green:wlan";
+			gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "phy0tpt";
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+	num-cs = <1>;
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			uboot: partition@0 {
+				reg = <0x0 0x20000>;
+				label = "u-boot";
+				read-only;
+			};
+
+			firmware: partition@20000 {
+				reg = <0x20000 0x3d0000>;
+				label = "firmware";
+			};
+
+			art: partition@3f0000 {
+				reg = <0x3f0000 0x10000>;
+				label = "art";
+				read-only;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy4: ethernet-phy@4 {
+		reg = <4>;
+		phy-mode = "mii";
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&phy4>;
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <1>;
+
+	gmac-config {
+		device = <&gmac>;
+
+		switch-phy-addr-swap = <1>;
+		switch-phy-swap = <1>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <(-1)>;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&gpio {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&uboot 0x1fc00>;
+};