tegra: plutux: Add device tree support

Device tree support is required for working USB host support, which in
turn enables ethernet support.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

board/avionic-design/dts/tegra2-plutux.dts

@@ -0,0 +1,58 @@
+/dts-v1/;
+
+/include/ ARCH_CPU_DTS
+
+/ {
+	model = "Avionic Design Plutux";
+	compatible = "avionic-design,plutux", "nvidia,tegra20";
+
+	aliases {
+		usb0 = "/usb@c5008000";
+	};
+
+	memory {
+		reg = <0x00000000 0x20000000>;
+	};
+
+	clocks {
+		clk_32k: clk_32k {
+			clock-frequency = <32000>;
+		};
+
+		osc {
+			clock-frequency = <12000000>;
+		};
+	};
+
+	clock@60006000 {
+		clocks = <&clk_32k &osc>;
+	};
+
+	serial@70006300 {
+		clock-frequency = <216000000>;
+	};
+
+	i2c@7000c000 {
+		status = "disabled";
+	};
+
+	i2c@7000c400 {
+		status = "disabled";
+	};
+
+	i2c@7000c500 {
+		status = "disabled";
+	};
+
+	i2c@7000d000 {
+		status = "disabled";
+	};
+
+	usb@c5000000 {
+		status = "disabled";
+	};
+
+	usb@c5004000 {
+		status = "disabled";
+	};
+};

include/configs/plutux.h

@@ -1,7 +1,7 @@
 /*
  *  (C) Copyright 2010,2011
  *  NVIDIA Corporation <www.nvidia.com>
- *  (C) Copyright 2011
+ *  (C) Copyright 2011-2012
  *  Avionic Design GmbH <www.avionic-design.de>
  *
  * See file CREDITS for list of people who contributed to this
@@ -28,6 +28,11 @@
 
 #include "tegra2-common.h"
 
+/* Enable fdt support for Plutux. Flash the image in u-boot-dtb.bin */
+#define CONFIG_DEFAULT_DEVICE_TREE	tegra2-plutux
+#define CONFIG_OF_CONTROL
+#define CONFIG_OF_SEPARATE
+
 /* High-level configuration options */
 #define V_PROMPT			"Tegra2 (Plutux) # "
 #define CONFIG_TEGRA2_BOARD_STRING	"Avionic Design Plutux"
@@ -47,6 +52,20 @@
 #define CONFIG_TEGRA_MMC
 #define CONFIG_CMD_MMC
 
+/* USB host support */
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_TEGRA
+#define CONFIG_USB_STORAGE
+#define CONFIG_CMD_USB
+
+/* USB networking support */
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_SMSC95XX
+
+/* General networking support */
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_DHCP
+
 #define CONFIG_DOS_PARTITION
 #define CONFIG_EFI_PARTITION
 #define CONFIG_CMD_EXT2