From 89fe6f9b7875f74e7d63a90ae3a51d84d3cf9369 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Thu, 9 Oct 2014 18:16:26 +0200
Subject: [PATCH] ARM: BCM5301X: Add DT for Asus RT-N18U
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
 arch/arm/boot/dts/Makefile                  |  3 +-
 arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts | 88 +++++++++++++++++++++++++++++
 arch/arm/boot/dts/bcm47081.dtsi             | 26 +++++++++
 arch/arm/mach-bcm/bcm_5301x.c               |  1 +
 4 files changed, 117 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
 create mode 100644 arch/arm/boot/dts/bcm47081.dtsi

--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -53,7 +53,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rp
 dtb-$(CONFIG_ARCH_BCM_5301X) += \
 	bcm4708-buffalo-wzr-1750dhp.dtb \
 	bcm4708-netgear-r6250.dtb \
-	bcm4708-netgear-r6300-v2.dtb
+	bcm4708-netgear-r6300-v2.dtb \
+	bcm47081-asus-rt-n18u.dtb
 dtb-$(CONFIG_ARCH_BERLIN) += \
 	berlin2-sony-nsz-gs7.dtb	\
 	berlin2cd-google-chromecast.dtb
--- /dev/null
+++ b/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
@@ -0,0 +1,88 @@
+/*
+ * Broadcom BCM470X / BCM5301X arm platform code.
+ * DTS for Asus RT-N18U
+ *
+ * Copyright © 2014 Rafał Miłecki <zajec5@gmail.com>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+/dts-v1/;
+
+#include "bcm47081.dtsi"
+
+/ {
+	compatible = "asus,rt-n18u", "brcm,bcm47081";
+	model = "Asus RT-N18U (BCM47081)";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	memory {
+		reg = <0x00000000 0x08000000>;
+	};
+
+	chipcommonA {
+		uart0: serial@0300 {
+			status = "okay";
+		};
+
+		uart1: serial@0400 {
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power {
+			label = "bcm53xx:blue:power";
+			gpios = <&chipcommon 0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-on";
+		};
+
+		usb2 {
+			label = "bcm53xx:blue:usb2";
+			gpios = <&chipcommon 3 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-off";
+		};
+
+		wan {
+			label = "bcm53xx:blue:wan";
+			gpios = <&chipcommon 6 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-on";
+		};
+
+		lan {
+			label = "bcm53xx:blue:lan";
+			gpios = <&chipcommon 9 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-on";
+		};
+
+		usb3 {
+			label = "bcm53xx:blue:usb3";
+			gpios = <&chipcommon 14 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-off";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <200>;
+
+		restart {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&chipcommon 7 GPIO_ACTIVE_LOW>;
+		};
+
+		wps {
+			label = "WPS";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/bcm47081.dtsi
@@ -0,0 +1,26 @@
+/*
+ * Broadcom BCM470X / BCM5301X ARM platform code.
+ * DTS for BCM47081 SoC.
+ *
+ * Copyright © 2014 Rafał Miłecki <zajec5@gmail.com>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcm5301x.dtsi"
+
+/ {
+	compatible = "brcm,bcm47081";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x0>;
+		};
+	};
+};
--- a/arch/arm/mach-bcm/bcm_5301x.c
+++ b/arch/arm/mach-bcm/bcm_5301x.c
@@ -81,6 +81,7 @@ static void bcm5301x_restart(enum reboot
 
 static const char __initconst *bcm5301x_dt_compat[] = {
 	"brcm,bcm4708",
+	"brcm,bcm47081",
 	NULL,
 };