tegra: harmony: add device tree support

... to enable USB host support, which enables Ethernet support.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

board/nvidia/dts/tegra2-harmony.dts

@@ -0,0 +1,57 @@
+/dts-v1/;
+
+/include/ ARCH_CPU_DTS
+
+/ {
+	model = "NVIDIA Tegra2 Harmony evaluation board";
+	compatible = "nvidia,harmony", "nvidia,tegra20";
+
+	aliases {
+		usb0 = "/usb@c5008000";
+	};
+
+	memory {
+		reg = <0x00000000 0x40000000>;
+	};
+
+	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/harmony.h

@@ -1,5 +1,5 @@
 /*
- *  (C) Copyright 2010,2011
+ *  (C) Copyright 2010-2012
  *  NVIDIA Corporation <www.nvidia.com>
  *
  * See file CREDITS for list of people who contributed to this
@@ -27,6 +27,11 @@
 #include <asm/sizes.h>
 #include "tegra2-common.h"
 
+/* Enable fdt support for Harmony. Flash the image in u-boot-dtb.bin */
+#define CONFIG_DEFAULT_DEVICE_TREE	tegra2-harmony
+#define CONFIG_OF_CONTROL
+#define CONFIG_OF_SEPARATE
+
 /* High-level configuration options */
 #define V_PROMPT		"Tegra2 (Harmony) # "
 #define CONFIG_TEGRA2_BOARD_STRING	"NVIDIA Harmony"
@@ -61,6 +66,21 @@
 /* Environment not stored */
 #define CONFIG_ENV_IS_NOWHERE
 
+/* 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
+#define CONFIG_USB_ETHER_ASIX
+
+/* General networking support */
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_DHCP
+
 #include "tegra2-common-post.h"
 
 #endif /* __CONFIG_H */