ath79: add support for GL.iNet 6408/6416 (GL.iNet V1)

This ports the GL.iNet 6408/6416 from ar71xx.

The GL-Connect GL.iNet v1 routers are basically a TP-Link TL-WR710N with
more DRAM/Flash and console/GPIO header in the same small form-factor.

Specifications:
 - SoC: Atheros AR9331
 - CPU: 400 MHz
 - Flash: 8/16 MiB
 - RAM: 64 MiB
 - WiFi: 2.4 GHz b/g/n (SoC)
 - Ethernet: 2x 100M ports (LAN/WAN)
 - USB: 1x 2.0

The difference between 6408 and 6416 is just the flash size. It looks like
only the 16 MiB version has been advertised, while the 6408 is a modified
version. There are also 1-port versions sold by third parties.

Installation:
Install the sysupgrade image via stock firmware GUI or upload it via uboot
(web-based). The device will be available at 192.168.1.1.

Attention: In ar71xx, the same board name is used for both flash versions.
So, please make sure you flash the correct ath79 image when upgrading.

This has been device-tested on a GL.iNet 6416.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 91 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/ar9331_glinet_64xx.dtsi b/target/linux/ath79/dts/ar9331_glinet_64xx.dtsi
new file mode 100644
index 0000000000..2fa970248a
--- /dev/null
+++ b/target/linux/ath79/dts/ar9331_glinet_64xx.dtsi
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar9331.dtsi"
+
+/ {
+	aliases {
+		serial0 = &uart;
+		label-mac-device = &wmac;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		wlan {
+			label = "gl-inet:red:wlan";
+			gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		lan {
+			label = "gl-inet:green:lan";
+			gpios = <&gpio 13 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	reg_usb_vbus: reg_usb_vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		enable-active-high;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+
+	gmac-config {
+		device = <&gmac>;
+
+		switch-phy-addr-swap = <0>;
+		switch-phy-swap = <0>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+};
+
+&gpio {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb {
+	dr_mode = "host";
+	vbus-supply = <&reg_usb_vbus>;
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&uboot 0x1fc00>;
+};