ramips: add support for D-Link DAP-1522 A1

D-Link DAP-1522 is a wireless bridge/access point with 4 LAN
ports and a dual-band wireless chipset.

Specifications:
- Ralink RT2880
- 32 MB of RAM
- 4 MB of Flash
- 4x 10/100/1000 Mbps Ethernet (RTL8366SR)
- 802.11abgn (RT2850)

Flash Instructions:
1. Download lede-ramips-rt288x-dap-1522-a1-squashfs-factory.bin
2. Open the web interface and upload the image

Signed-off-by: George Hopkins <george-hopkins@null.net>

1 files changed, 139 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/DAP-1522-A1.dts b/target/linux/ramips/dts/DAP-1522-A1.dts
new file mode 100644
index 0000000000..8f8d098bd5
--- /dev/null
+++ b/target/linux/ramips/dts/DAP-1522-A1.dts
@@ -0,0 +1,139 @@
+/dts-v1/;
+
+#include "rt2880.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "dlink,dap-1522-a1", "ralink,rt2880-soc";
+	model = "D-Link DAP-1522 A1";
+
+	cfi@bc400000 {
+		compatible = "cfi-flash";
+		reg = <0xbc400000 0x800000>;
+		bank-width = <2>;
+		device-width = <2>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "uboot";
+			reg = <0x0 0x30000>;
+			read-only;
+		};
+
+		factory: partition@30000 {
+			label = "factory";
+			reg = <0x30000 0x10000>;
+			read-only;
+		};
+
+		partition@40000 {
+			label = "firmware";
+			reg = <0x40000 0x3a0000>;
+		};
+	};
+
+	rtl8366s {
+		compatible = "realtek,rtl8366s";
+		gpio-sda = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+		gpio-sck = <&gpio0 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <100>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio2 16 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		ap {
+			label = "ap";
+			gpios = <&gpio2 13 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+		};
+
+		bridge {
+			label = "bridge";
+			gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_1>;
+			linux,input-type = <EV_SW>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		wps {
+			label = "dap-1522-a1:blue:wps";
+			gpios = <&gpio2 17 GPIO_ACTIVE_LOW>;
+		};
+
+		ap {
+			label = "dap-1522-a1:blue:ap";
+			gpios = <&gpio2 18 GPIO_ACTIVE_LOW>;
+		};
+
+		sta {
+			label = "dap-1522-a1:red:sta";
+			gpios = <&gpio2 19 GPIO_ACTIVE_LOW>;
+		};
+
+		status {
+			label = "dap-1522-a1:blue:status";
+			gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "i2c", "uartlite", "pci";
+			ralink,function = "gpio";
+		};
+	};
+};
+
+&ethernet {
+	status = "okay";
+	mtd-mac-address = <&factory 0x2004>;
+
+	port@0 {
+		mediatek,fixed-link = <1000 1 1 1>;
+	};
+
+	mdio-bus {
+		status = "okay";
+
+		phy0: ethernet-phy@0 {
+			phy-mode = "mii";
+			reg = <0>;
+		};
+	};
+};
+
+&wmac {
+	ralink,mtd-eeprom = <&factory 0x2000>;
+};