ARM: dts: BCM5301X: Add basic DT for Linksys EA6500 V2

It is wireless home router based on BCM4708A0 with BCM4360 + BCM4331
wireless chipsets. The BCM4331 5GHz chip currently isn't supported only
due to missing compatible firmware.
Signed-off-by: Rene Kjellerup <rk.katana.steel@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/Makefile

@@ -89,6 +89,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
 	bcm4708-asus-rt-ac68u.dtb \
 	bcm4708-buffalo-wzr-1750dhp.dtb \
 	bcm4708-linksys-ea6300-v1.dtb \
+	bcm4708-linksys-ea6500-v2.dtb \
 	bcm4708-luxul-xap-1510.dtb \
 	bcm4708-luxul-xwc-1000.dtb \
 	bcm4708-netgear-r6250.dtb \

arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
+ * Copyright (C) 2018 Rene Kjellerup <rk.katana.steel@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "bcm4708.dtsi"
+#include "bcm5301x-nand-cs0-bch8.dtsi"
+
+/ {
+	compatible = "linksys,ea6500-v2", "brcm,bcm4708";
+	model = "Linksys EA6500 V2";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	memory {
+		reg = <0x00000000 0x08000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		wps {
+			label = "WPS";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&chipcommon 7 GPIO_ACTIVE_LOW>;
+		};
+
+		restart {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&usb3_phy {
+	status = "okay";
+};