Add four main boot methods to developer build

include/configs/chromeos/tegra2/normal.h

Index: include/configs/chromeos/tegra2/normal.h
diff --git a/include/configs/chromeos/tegra2/normal.h b/include/configs/chromeos/tegra2/normal.h
index ba9259ceaf0a748dc731dd30739edccd585bbe50..146837babffb6f27a7b2a3fcb01fa780d96c7313 100644
--- a/include/configs/chromeos/tegra2/normal.h
+++ b/include/configs/chromeos/tegra2/normal.h
@@ -10,4 +10,29 @@
 #include <configs/chromeos/normal.h>
 #include <configs/chromeos/tegra2/common.h>
 
+
+/*
+ * TODO(sjg): Copied from recovery.h for now. This should be cut back to only
+ * do the official boot
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS_ARCH \
+	"scriptaddr=0x408000\0" \
+	"script_img=/u-boot/boot.scr.uimg\0" \
+	"mmc0_boot=setenv devnum 0; run mmc_boot;\0" \
+	"mmc1_boot=setenv devnum 1; run mmc_boot;\0" \
+	"usb0_boot=usb start 0; run usb_boot;\0" \
+	"usb1_boot=usb start 1; run usb_boot;\0" \
+	"scr_boot=fatload ${devtype} ${devnum}:c ${scriptaddr} ${script_img};"\
+		"source ${scriptaddr};" \
+		"read ${devtype} ${devnum}:${kernelpart} ${scriptaddr} 0 10;" \
+		"source ${scriptaddr};\0" \
+	"mmc_boot=mmc init ${devnum};" \
+		"setenv devtype mmc;" \
+	        "setenv devname mmcblk${devnum}p;" \
+		"run scr_boot;\0" \
+	"usb_boot=setenv devtype usb;" \
+		"setenv devnum 0;" \
+		"setenv devname sda;" \
+		"run scr_boot;\0"
+
 #endif //__configs_chromeos_tegra2_normal_h__