ath79: add support for I-O DATA WN-AG300DGR

I-O DATA WN-AG300DGR is a 2T2R 2.4/5 GHz 11n router, based on Atheros
AR1022.

WN-AG300DGR does not have an LED to indicates power or system status,
I set "router" LED as OpenWrt status LED.

There is no eeprom data for 5 GHz wlan in "art" partition.

Specification:

- Atheros AR1022
- 64 MB of RAM (DDR2)
- 8 MB of Flash (SPI-NOR)
- 2T2R 2.4/5GHz wifi
  - 2.4 GHz: SoC internal
  - 5 GHz: Atheros AR93x2
- 5x 10/100/1000 Mbps Ethernet
- 6x LEDs, 6x keys (4x buttons, 1x slide switch)
- 1x USB 2.0 Type-A
- UART through-hole on PCB
  - Vcc, GND, TX, RX from ethernet port side
  - 115200n8

Flash instruction using factory image:

1. Connect the computer to the LAN port on WN-AG300DGR
2. Connect power cable to WN-AG300DGR and turn it
3. Access to "http://192.168.0.1/" and open firmware update page
("ファームウェア")
4. Select the OpenWrt factory image and click update ("更新") button
5. Wait ~150 seconds to complete flashing

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>

1 files changed, 222 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/ar1022_iodata_wn-ag300dgr.dts b/target/linux/ath79/dts/ar1022_iodata_wn-ag300dgr.dts
new file mode 100644
index 0000000000..b222b10a5a
--- /dev/null
+++ b/target/linux/ath79/dts/ar1022_iodata_wn-ag300dgr.dts
@@ -0,0 +1,222 @@
+// 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 "ar9344.dtsi"
+
+/ {
+	compatible = "iodata,wn-ag300dgr", "qca,ar9344";
+	model = "I-O DATA WN-AG300DGR";
+
+	aliases {
+		led-boot = &router;
+		led-failsafe = &router;
+		led-running = &router;
+		led-upgrade = &router;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		router: router {
+			label = "wn-ag300dgr:green:router";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		children {
+			label = "wn-ag300dgr:green:children";
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		eco {
+			label = "wn-ag300dgr:green:eco";
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		notification {
+			label = "wn-ag300dgr:amber:notification";
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		wlan2g {
+			label = "wn-ag300dgr:green:wlan2g";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "phy0tpt";
+		};
+
+		wlan5g {
+			label = "wn-ag300dgr:green:wlan5g";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		eco {
+			label = "eco";
+			gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_1>;
+			debounce-interval = <60>;
+		};
+
+		router {
+			label = "router";
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+			debounce-interval = <60>;
+		};
+
+		auto {
+			label = "auto";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+
+		children {
+			label = "children";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_1>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&ref {
+	clock-frequency = <25000000>;
+};
+
+&spi {
+	num-cs = <1>;
+	status = "okay";
+
+	flash@0 {
+		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 0x030000>;
+				read-only;
+			};
+
+			partition@30000 {
+				label = "u-boot-env";
+				reg = <0x030000 0x010000>;
+				read-only;
+			};
+
+			partition@40000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x040000 0xf10000>;
+			};
+
+			partition@f50000 {
+				label = "manufacture";
+				reg = <0xf50000 0x40000>;
+				read-only;
+			};
+
+			partition@f90000 {
+				label = "backup";
+				reg = <0xf90000 0x10000>;
+				read-only;
+			};
+
+			partition@fa0000 {
+				label = "storage";
+				reg = <0xfa0000 0x50000>;
+				read-only;
+			};
+
+			partition@ff0000 {
+				label = "art";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		phy-mode = "rgmii";
+
+		qca,ar8327-initvals = <
+			0x04 0x07a00000 /* PORT0 PAD MODE CTRL */
+			0x7c 0x000000fe /* PORT0_STATUS */
+		>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	pll-data = <0x06000000 0x00000101 0x00001616>;
+
+	phy-mode = "rgmii";
+	phy-handle = <&phy0>;
+
+	gmac-config {
+		device = <&gmac>;
+		rgmii-gmac0 = <1>;
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb {
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+	qca,no-eeprom;
+};