diff -Nur u-boot-2015.04.orig/include/configs/am335x_evm.h u-boot-2015.04/include/configs/am335x_evm.h
--- u-boot-2015.04.orig/include/configs/am335x_evm.h	2015-04-13 11:53:03.000000000 -0300
+++ u-boot-2015.04/include/configs/am335x_evm.h	2016-02-22 21:45:18.256462447 -0300
@@ -67,11 +67,18 @@
 
 #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 
+/* Enable extlinux boot support */
+#define CONFIG_CMD_PXE
+#define CONFIG_MENU
+#define BOOT_TARGET_DEVICES(func)
+#include <config_distro_bootcmd.h>
+
 #ifndef CONFIG_SPL_BUILD
 #define CONFIG_EXTRA_ENV_SETTINGS \
+	BOOTENV \
 	DEFAULT_LINUX_BOOT_ENV \
 	"boot_fdt=try\0" \
-	"bootpart=0:2\0" \
+	"bootpart=0:1\0" \
 	"bootdir=/boot\0" \
 	"bootfile=zImage\0" \
 	"fdtfile=undefined\0" \
@@ -80,8 +87,10 @@
 		"uuid_disk=${uuid_gpt_disk};" \
 		"name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}\0" \
 	"optargs=\0" \
+	"devtype=mmc\0" \
+	"devnum=0\0" \
 	"mmcdev=0\0" \
-	"mmcroot=/dev/mmcblk0p2 ro\0" \
+	"mmcroot=/dev/mmcblk0p1 ro\0" \
 	"mmcrootfstype=ext4 rootwait\0" \
 	"rootpath=/export/rootfs\0" \
 	"nfsopts=nolock\0" \
@@ -149,6 +158,7 @@
 					"echo Running uenvcmd ...;" \
 					"run uenvcmd;" \
 				"fi;" \
+				"usb start; run scan_dev_for_boot;" \
 				"if run loadimage; then " \
 					"run mmcloados;" \
 				"fi;" \