ramips: add support for Buffalo WCR-1166DS

Buffalo WCR-1166DS is a small wireless router with

 - MT7628AN + MT7612E
 - 64MiB DDR2 SDRAM
 - 16MiB SPI flash
 - 2T2R 11ac/a/b/g/n Wi-Fi
 - 2x 10/100M ethernet switch
 - 8x programmable LED
 - 3x button
 - UART pad on PCB (J2: 3.3V, GND, TX, RX)

factory image can be installed via stock web UI.

due to the "dual image" function in the bootloader, the second half of
the SPI flash ("firmware2" partition) cannot be used as a part of the
file system.

Signed-off-by: FUKAUMI Naoki <naobsd@gmail.com>

1 files changed, 172 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/WCR-1166DS.dts b/target/linux/ramips/dts/WCR-1166DS.dts
new file mode 100644
index 0000000..ad3f21b
--- /dev/null
+++ b/target/linux/ramips/dts/WCR-1166DS.dts
@@ -0,0 +1,172 @@
+/dts-v1/;
+
+#include "mt7628an.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "buffalo,wcr-1166ds", "mediatek,mt7628an-soc";
+	model = "Buffalo WCR-1166DS";
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		aoss {
+			label = "aoss";
+			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		ap {
+			label = "ap";
+			gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		router_o {
+			label = "wcr-1166ds:orange:router";
+			gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+		};
+
+		router_g {
+			label = "wcr-1166ds:green:router";
+			gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+		};
+
+		internet_o {
+			label = "wcr-1166ds:orange:internet";
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+		};
+
+		internet_g {
+			label = "wcr-1166ds:green:internet";
+			gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+		};
+
+		wireless_o {
+			label = "wcr-1166ds:orange:wireless";
+			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+		};
+
+		wireless_g {
+			label = "wcr-1166ds:green:wireless";
+			gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+		};
+
+		diag {
+			label = "wcr-1166ds:orange:diag";
+			gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+		};
+
+		power {
+			label = "wcr-1166ds:green:power";
+			gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&ehci {
+	status = "disabled";
+};
+
+&esw {
+	mediatek,portmap = <0x2f>;
+	mediatek,portdisable = <0x27>;
+};
+
+&ohci {
+	status = "disabled";
+};
+
+&pcie {
+	status = "okay";
+	pcie-bridge {
+		mt76@0,0 {
+			reg = <0x0000 0 0 0 0>;
+			device_type = "pci";
+			mediatek,mtd-eeprom = <&factory 0x8000>;
+			mediatek,2ghz = <0>;
+		};
+	};
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "uart1", "wled_an", "p0led_an", "p1led_an", "p2led_an", "p3led_an", "p4led_an", "wdt", "refclk", "gpio", "i2s";
+			ralink,function = "gpio";
+		};
+	};
+};
+
+&spi0 {
+	status = "okay";
+
+	m25p80@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+		m25p,chunked-io = <32>;
+
+		partition@0 {
+			label = "u-boot";
+			reg = <0x0 0x30000>;
+			read-only;
+		};
+
+		partition@30000 {
+			label = "u-boot-env";
+			reg = <0x30000 0x10000>;
+			read-only;
+		};
+
+		factory: partition@40000 {
+			label = "factory";
+			reg = <0x40000 0x10000>;
+			read-only;
+		};
+
+		partition@50000 {
+			label = "firmware";
+			reg = <0x50000 0x7c0000>;
+		};
+
+		partition@810000 {
+			label = "firmware2";
+			reg = <0x810000 0x7c0000>;
+		};
+
+		partition@fd0000 {
+			label = "glbcfg";
+			reg = <0xfd0000 0x10000>;
+			read-only;
+		};
+
+		partition@fe0000 {
+			label = "board_data";
+			reg = <0xfe0000 0x10000>;
+			read-only;
+		};
+	};
+};
+
+&wmac {
+	status = "okay";
+};