at91: add support for the WB50N module from Laird

This module from Laird includes the following:
  - CPU Atmel SoC SAMA5D31
  - Wifi QCA6004
  - Bluetooth CSR8811
  - RAM 64MB LPDDR
  - FLASH 128MB

The flash is a dual image layout, kernel a/b, rootfs a/b, and a user
partition.

Signed-off-by: Ben Whitten <ben.whitten@gmail.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/target/linux/at91/files/arch/arm/boot/dts/wb50n.dts b/target/linux/at91/files/arch/arm/boot/dts/wb50n.dts
new file mode 100644
index 0000000..9c28a21
--- /dev/null
+++ b/target/linux/at91/files/arch/arm/boot/dts/wb50n.dts
@@ -0,0 +1,117 @@
+/*
+ * wb50n.dts - Device Tree file for wb50n board
+ *
+ *  Copyright (C) 2015 Laird
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+#include "wb50n.dtsi"
+
+/ {
+	model = "Laird Workgroup Bridge 50N - Atmel SAMA5D";
+	compatible = "laird,wb50n", "atmel,sama5d31ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d31", "atmel,sama5d3", "atmel,sama5";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk loglevel=4 mem=64M";
+	};
+
+	ahb {
+
+		apb {
+			mmc0: mmc@f0000000 {
+				status = "okay";
+			};
+
+			macb1: ethernet@f802c000 {
+				status = "okay";
+			};
+
+			dbgu: serial@ffffee00 {
+				status = "okay";
+			};
+
+			/* On BB40 this port is labeled UART1 */
+			usart0: serial@f001c000 {
+				status = "okay";
+			};
+
+			/* On BB40 this port is labeled UART0 */
+			usart1: serial@f0020000 {
+				status = "okay";
+			};
+
+			i2c0: i2c@f0014000 {
+				status = "okay";
+			};
+
+			spi1: spi@f8008000 {
+				status = "okay";
+
+			        spidev@0 {
+				          compatible = "spidev";
+				          reg = <0>;
+				          spi-max-frequency = <8000000>;
+			         };
+			};
+
+			watchdog@fffffe40 {
+				status = "okay";
+			};
+		};
+
+		usb0: gadget@00500000 {
+			status = "okay";
+		};
+
+		usb1: ohci@00600000 {
+			status = "okay";
+		};
+
+		usb2: ehci@00700000 {
+			status = "okay";
+		};
+
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		btn0@pa10 {
+			label = "BTNESC";
+			linux,code = <1>; /* ESC button */
+			gpios = <&pioA 10 GPIO_ACTIVE_LOW>;
+			gpio-key,wakeup = <1>;
+		};
+
+		irqbtn@pe31 {
+			label = "IRQBTN";
+			linux,code = <99>; /* SysReq button */
+			gpios = <&pioE 31 GPIO_ACTIVE_LOW>;
+			gpio-key,wakeup = <1>;
+		};
+	};
+
+    leds {
+        compatible = "gpio-leds";
+
+        led0 {
+            label = "wb50n:blue:led0";
+            gpios = <&pioA 12 GPIO_ACTIVE_LOW>;
+            default-state = "off";
+        };
+
+        led1 {
+            label = "wb50n:green:led1";
+            gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
+            default-state = "off";
+        };
+
+        led2 {
+            label = "wb50n:red:led2";
+            gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
+            default-state = "off";
+        };
+    };
+};