ramips: add support for Zbtlink ZBT-WE2026

This patch adds support for the Zbtlink ZBT-WE2026.

Specification:
- SoC: MediaTek MT7620N (580MHz)
- RAM: 64 MiB
- Flash: 8 MiB SPI
- LAN: 4x100M
- WAN: 1x100M

Installation through bootloader webserver:
- With the power unplugged press and hold reset button.
- Plug power and hold reset button until LED starts to blink.
- Install sysupgrade image using web interface on 192.168.1.1.

Signed-off-by: Vaclav Svoboda <svoboda@neng.cz>

1 files changed, 103 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/ZBT-WE2026.dts b/target/linux/ramips/dts/ZBT-WE2026.dts
new file mode 100644
index 0000000000..02f3378890
--- /dev/null
+++ b/target/linux/ramips/dts/ZBT-WE2026.dts
@@ -0,0 +1,103 @@
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "mt7620n.dtsi"
+
+/ {
+	compatible = "zbtlink,zbt-we2026", "ralink,mt7620n-soc";
+	model = "Zbtlink ZBT-WE2026";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		power {
+			label = "zbt-we2026:red:power";
+			gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan {
+			label = "zbt-we2026:green:wlan";
+			gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio3 {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+
+	en25q64@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+
+		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 0x760000>;
+		};
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0x4>;
+	mediatek,portmap = "wllll";
+};
+
+&wmac {
+	ralink,mtd-eeprom = <&factory 0>;
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		default {
+			ralink,group = "i2c", "spi refclk", "wled";
+			ralink,function = "gpio";
+		};
+	};
+};