ath79: add support for ASUS RP-AC66

Asus RP-AC66 Repeater

Hardware specifications:
Board: AP152
SoC: QCA9563
DRAM: 64MB DDR2
Flash: 25l128 16MB SPI-NOR
LAN/WAN: 1x1000M QCA8033
WiFi 5GHz: QCA9880
Clocks: CPU:775.000MHz, DDR:650.000MHz, AHB:258.333MHz, Ref:25.000MHz

MAC addresses as verified by OEM firmware:
use            address   source
Lan/Wan   *:24         art 0x1002 (label)
2G             *:24         art 0x1002
5G             *:26         art 0x5006

Installation:

Asus windows recovery tool:
 - install the Asus firmware restoration utility
 - unplug the router, hold the reset button while powering it on
 - release when the power LED flashes slowly
 - specify a static IP on your computer:
     IP address: 192.168.1.75
     Subnet mask 255.255.255.0
 - Start the Asus firmware restoration utility, specify the factory image
    and press upload
 - Do not power off the device after OpenWrt has booted until the LED flashing.

TFTP Recovery method:
 - set computer to a static ip, 192.168.1.75
 - connect computer to the LAN 1 port of the router
 - hold the reset button while powering on the router for a few seconds
 - send firmware image using a tftp client; i.e from linux:
 $ tftp
 tftp> binary
 tftp> connect 192.168.1.1
 tftp> put factory.bin
 tftp> quit

Signed-off-by: Tamas Balogh <tamasbalogh@hotmail.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9563_asus_rp-ac66.dts b/target/linux/ath79/dts/qca9563_asus_rp-ac66.dts
new file mode 100644
index 0000000000..b1317d55ec
--- /dev/null
+++ b/target/linux/ath79/dts/qca9563_asus_rp-ac66.dts
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca956x.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "ASUS RP-AC66";
+	compatible = "asus,rp-ac66", "qca,qca9563";
+
+	aliases {
+		led-boot = &led_orange;
+		led-failsafe = &led_orange;
+		led-running = &led_power;
+		led-upgrade = &led_orange;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: power {
+			label = "green:power";
+			gpios = <&gpio 6 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_orange: wps {
+			label = "orange:wps";
+			gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		rssilow-wlan0 {
+			label = "blue:rssilow-wlan0";
+			gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
+		};
+
+		rssimedium-wlan0 {
+			label = "red:rssimedium-wlan0";
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+		};
+
+		rssihigh-wlan0 {
+			label = "green:rssihigh-wlan0";
+			gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+		};
+
+		rssilow-wlan1 {
+			label = "blue:rssilow-wlan1";
+			gpios = <&gpio 7 GPIO_ACTIVE_HIGH>;
+		};
+
+		rssimedium-wlan1 {
+			label = "red:rssimedium-wlan1";
+			gpios = <&gpio 9 GPIO_ACTIVE_HIGH>;
+		};
+
+		rssihigh-wlan1 {
+			label = "green:rssihigh-wlan1";
+			gpios = <&gpio 8 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x40000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "u-boot-env";
+				reg = <0x040000 0x10000>;
+				read-only;
+			};
+
+			art: partition@50000 {
+				label = "art";
+				reg = <0x050000 0x10000>;
+				read-only;
+
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				macaddr_art_1002: macaddr@1002 {
+					reg = <0x1002 0x6>;
+				};
+			};
+
+			partition@60000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x060000 0xf20000>;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy-mask = <0>;
+
+	phy0: ethernet-phy@3 {
+		reg = <0x3>;
+		phy-mode = "sgmii";
+		qca,mib-poll-interval = <500>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-mode = "sgmii";
+	nvmem-cells = <&macaddr_art_1002>;
+	nvmem-cell-names = "mac-address";
+	phy-handle = <&phy0>;
+};
+
+&wmac {
+	status = "okay";
+
+	qca,no-eeprom;
+};