ath79: add support for TP-Link RE450 v2

TP-Link RE450 v2 is a dual band router/range-extender
based on Qualcomm/Atheros QCA9563 + QCA9880.

Specification:

- 775 MHz CPU
- 64 MB of RAM (DDR2)
- 8 MB of FLASH (SPI NOR)
- 3T3R 2.4 GHz
- 3T3R 5 GHz
- 1x 10/100/1000 Mbps Ethernet (AR8033 PHY)
- 7x LED, 4x button
- UART header on PCB (needs unmounted R64 & R69 0201 resistors/jumpers)

Flash instruction:
Apply factory image in OEM firmware web-gui.

U-Boot does not seem to have any recovery functions, so
debricking requires connection via UART.

Signed-off-by: Peter Lundkvist <peter.lundkvist@gmail.com>

1 files changed, 195 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9563_tl-re450-v2.dts b/target/linux/ath79/dts/qca9563_tl-re450-v2.dts
new file mode 100644
index 0000000000..646cdf2975
--- /dev/null
+++ b/target/linux/ath79/dts/qca9563_tl-re450-v2.dts
@@ -0,0 +1,195 @@
+// 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 "qca956x.dtsi"
+
+/ {
+	compatible = "tplink,re450-v2", "qca,qca9563";
+	model = "TP-Link RE450 v2";
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	aliases {
+		led-status = &system;
+		mdio-gpio0 = &mdio2;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		system: power {
+			label = "tp-link:blue:power";
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan2g {
+			label = "tp-link:blue:wlan2g";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "phy1tpt";
+		};
+
+		wlan5g {
+			label = "tp-link:blue:wlan5g";
+			gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "phy0tpt";
+		};
+
+		lan_link {
+			label = "tp-link:green:lan_link";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		lan_data {
+			label = "tp-link:green:lan_data";
+			gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		wps_blue {
+			label = "tp-link:blue:wps";
+			gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		wps_red {
+			label = "tp-link:red:wps";
+			gpios = <&gpio 20 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reset {
+			label = "Reset button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		power {
+			label = "Power button";
+			linux,code = <KEY_POWER>;
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		leds {
+			label = "LED control button";
+			linux,code = <BTN_0>;
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "WPS button";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 19 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	mdio2: mdio {
+		compatible = "virtual,mdio-gpio";
+
+		gpios = <&gpio 3 GPIO_ACTIVE_HIGH>, /* MDC */
+			<&gpio 4 GPIO_ACTIVE_HIGH>; /* MDIO */
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@4 {
+			reg = <4>;
+			device_type = "ethernet-phy";
+			reset-gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&gpio {
+	status = "okay";
+};
+
+&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>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				label = "firmware";
+				reg = <0x020000 0x5e0000>;
+			};
+
+			partition@600000 {
+				label = "partition-table";
+				reg = <0x600000 0x010000>;
+				read-only;
+			};
+
+			info: partition@610000 {
+				label = "product-info";
+				reg = <0x610000 0x020000>;
+				read-only;
+			};
+
+			partition@630000 {
+				label = "config";
+				reg = <0x630000 0x020000>;
+				read-only;
+			};
+
+			art: partition@7f0000 {
+				label = "art";
+				reg = <0x7f0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+	mtd-mac-address = <&info 0x8>;
+	phy-handle = <&phy0>;
+};
+
+&wmac {
+	status = "okay";
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&info 0x8>;
+};