diff --git a/board/keymile/scripts/develop-common.txt b/board/keymile/scripts/develop-common.txt
index f49b26a..a80812a 100644
--- a/board/keymile/scripts/develop-common.txt
+++ b/board/keymile/scripts/develop-common.txt
@@ -3,7 +3,7 @@ bootcmd=run ${subbootcmds}
 configure=run set_uimage; km_setboardid && saveenv && reset
 subbootcmds=tftpfdt tftpkernel nfsargs add_default boot
 nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${toolchain}/${arch}
-tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb
+tftpfdt=if run set_fdthigh || test ${arch} != arm; then tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb; else true; fi
 tftpkernel=tftpboot ${load_addr_r} ${hostname}/${uimage}
 toolchain=/opt/eldk
 rootfssize=0
diff --git a/board/keymile/scripts/ramfs-common.txt b/board/keymile/scripts/ramfs-common.txt
index 0cfb36f..d79ad2e 100644
--- a/board/keymile/scripts/ramfs-common.txt
+++ b/board/keymile/scripts/ramfs-common.txt
@@ -7,7 +7,7 @@ nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
 configure=run set_uimage; km_setboardid && saveenv && reset
 rootfsfile=${hostname}/rootfsImage
 setrootfsaddr=setexpr value ${pnvramaddr} - ${rootfssize} && setenv rootfsaddr 0x${value}
-tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb
+tftpfdt=if run set_fdthigh || test ${arch} != arm; then tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb; else true; fi
 tftpkernel=tftpboot ${load_addr_r} ${hostname}/${uimage}
 tftpramfs=tftpboot ${rootfsaddr} ${hostname}/rootfsImage
 set_uimage=printenv uimage || setenv uimage uImage
diff --git a/include/configs/km/keymile-common.h b/include/configs/km/keymile-common.h
index cb53dbd..7361072 100644
--- a/include/configs/km/keymile-common.h
+++ b/include/configs/km/keymile-common.h
@@ -135,8 +135,8 @@
  * - 'release': for a standalone system		kernel/rootfs from flash
  */
 #define CONFIG_KM_DEF_ENV_BOOTTARGETS					\
-	"subbootcmds=ubiattach ubicopy cramfsloadfdt cramfsloadkernel "	\
-		"flashargs add_default addpanic boot\0"			\
+	"subbootcmds=ubiattach ubicopy cramfsloadfdt set_fdthigh "	\
+		"cramfsloadkernel flashargs add_default addpanic boot\0"\
 	"develop="							\
 		"tftp 200000 scripts/develop-${arch}.txt && "		\
 		"env import -t 200000 ${filesize} && "			\
diff --git a/include/configs/km/km-powerpc.h b/include/configs/km/km-powerpc.h
index b03fdd9..763c5ba 100644
--- a/include/configs/km/km-powerpc.h
+++ b/include/configs/km/km-powerpc.h
@@ -77,6 +77,7 @@
 		"cp.b ${load_addr_r} " __stringify(BOOTFLASH_START)	\
 		"  ${filesize} && "					\
 		"protect on " __stringify(BOOTFLASH_START) "  +${filesize}\0"\
+	"set_fdthigh=true\0"						\
 	""
 
 #endif /* __CONFIG_KEYMILE_POWERPC_H */
diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index a5cc1c5..6d77680 100644
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -81,6 +81,7 @@
 #define CONFIG_KM_DEF_ENV_CPU						\
 	"u-boot="__stringify(CONFIG_HOSTNAME) "/u-boot.kwb\0"		\
 	CONFIG_KM_UPDATE_UBOOT						\
+	"set_fdthigh=setenv fdt_high ${kernelmem}\0"			\
 	""
 
 #define CONFIG_SKIP_LOWLEVEL_INIT	/* disable board lowlevel_init */
diff --git a/include/configs/km/kmp204x-common.h b/include/configs/km/kmp204x-common.h
index 2466649..569b574 100644
--- a/include/configs/km/kmp204x-common.h
+++ b/include/configs/km/kmp204x-common.h
@@ -420,6 +420,7 @@ unsigned long get_board_sys_clk(unsigned long dummy);
 	"update="							\
 		"sf probe 0;sf erase 0 +${filesize};"			\
 		"sf write ${load_addr_r} 0 ${filesize};\0"		\
+	"set_fdthigh=true\0"						\
 	""
 
 #define CONFIG_HW_ENV_SETTINGS						\