diff --git a/board/boundarydevices/common/boot.cmd b/board/boundarydevices/common/boot.cmd
new file mode 100644
index 0000000000..7602b0139e
--- /dev/null
+++ b/board/boundarydevices/common/boot.cmd
@@ -0,0 +1,155 @@
+setenv bootargs ''
+
+setenv initrd_high 0xffffffff
+m4=''
+a_base=0x10000000
+if itest.s x51 == "x${imx_cpu}" ; then
+	a_base=0x90000000
+elif itest.s x53 == "x${imx_cpu}"; then
+	a_base=0x70000000
+elif itest.s x6SX == "x${imx_cpu}" || itest.s x7D == "x${imx_cpu}"; then
+	a_base=0x80000000
+	if itest.s "x1" == "x$m4enabled" ; then
+		run m4boot;
+		m4='-m4';
+	fi
+fi
+
+setexpr a_script  ${a_base} + 0x00800000
+setexpr a_zImage  ${a_base} + 0x00800000
+setexpr a_fdt     ${a_base} + 0x03000000
+setexpr a_ramdisk ${a_base} + 0x03800000
+setexpr a_initrd  ${a_base} + 0x03a00000
+setexpr a_reset_cause_marker ${a_base} + 0x80
+setexpr a_reset_cause	     ${a_base} + 0x84
+
+if itest.s "x" == "x${board}" ; then
+	echo "!!!! Error: Your u-boot is outdated. Please upgrade.";
+	exit;
+fi
+
+if itest.s "x" == "x${fdt_file}" ; then
+	if itest.s x6SOLO == "x${imx_cpu}" ; then
+		fdt_file=imx6dl-${board}.dtb;
+	elif itest.s x6DL == "x${imx_cpu}" ; then
+		fdt_file=imx6dl-${board}.dtb;
+	elif itest.s x6QP == "x${imx_cpu}" ; then
+		fdt_file=imx6qp-${board}.dtb;
+	elif itest.s x6SX == "x${imx_cpu}" ; then
+		fdt_file=imx6sx-${board}${m4}.dtb;
+	elif itest.s x7D == "x${imx_cpu}" ; then
+		fdt_file=imx7d-${board}${m4}.dtb;
+	elif itest.s x51 == "x${imx_cpu}" ; then
+		fdt_file=imx51-${board}${m4}.dtb;
+	elif itest.s x53 == "x${imx_cpu}" ; then
+		fdt_file=imx53-${board}${m4}.dtb;
+	else
+		fdt_file=imx6q-${board}.dtb;
+	fi
+fi
+
+if itest.s x${distro_bootpart} == x ; then
+	distro_bootpart=1
+fi
+
+if load ${devtype} ${devnum}:${distro_bootpart} ${a_script} uEnv.txt ; then
+    env import -t ${a_script} ${filesize}
+fi
+
+setenv bootargs ${bootargs} console=${console},115200 vmalloc=400M consoleblank=0 rootwait fixrtc cpu=${imx_cpu} board=${board}
+
+if load ${devtype} ${devnum}:${distro_bootpart} ${a_fdt} ${prefix}${fdt_file} ; then
+	fdt addr ${a_fdt}
+	setenv fdt_high 0xffffffff
+else
+	echo "!!!! Error loading ${prefix}${fdt_file}";
+	exit;
+fi
+
+cmd_xxx_present=
+fdt resize
+if itest.s "x" != "x${cmd_custom}" ; then
+	run cmd_custom
+	cmd_xxx_present=1;
+fi
+
+if itest.s "x" != "x${cmd_hdmi}" ; then
+	run cmd_hdmi
+	cmd_xxx_present=1;
+	if itest.s x == x${allow_noncea} ; then
+		setenv bootargs ${bootargs} mxc_hdmi.only_cea=1;
+		echo "only CEA modes allowed on HDMI port";
+	else
+		setenv bootargs ${bootargs} mxc_hdmi.only_cea=0;
+		echo "non-CEA modes allowed on HDMI, audio may be affected";
+	fi
+fi
+
+if itest.s "x" != "x${cmd_lcd}" ; then
+	run cmd_lcd
+	cmd_xxx_present=1;
+fi
+if itest.s "x" != "x${cmd_lcd2}" ; then
+	run cmd_lcd2
+	cmd_xxx_present=1;
+fi
+if itest.s "x" != "x${cmd_lvds}" ; then
+	run cmd_lvds
+	cmd_xxx_present=1;
+fi
+if itest.s "x" != "x${cmd_lvds2}" ; then
+	run cmd_lvds2
+	cmd_xxx_present=1;
+fi
+
+if itest.s "x" == "x${cmd_xxx_present}" ; then
+	echo "!!!!!!!!!!!!!!!!"
+	echo "warning: your u-boot may be outdated, please upgrade"
+	echo "!!!!!!!!!!!!!!!!"
+fi
+
+if test "sata" = "${devtype}" ; then
+	setenv bootargs "${bootargs} root=/dev/sda${distro_bootpart}" ;
+elif test "usb" = "${devtype}" ; then
+	setenv bootargs "${bootargs} root=/dev/sda${distro_bootpart}" ;
+else
+	setenv bootargs "${bootargs} root=/dev/mmcblk${devnum}p${distro_bootpart}"
+fi
+
+if itest.s "x" != "x${disable_msi}" ; then
+	setenv bootargs ${bootargs} pci=nomsi
+fi;
+
+if itest.s "x" != "x${disable_giga}" ; then
+	setenv bootargs ${bootargs} fec.disable_giga=1
+fi
+
+if itest.s "x" != "x${wlmac}" ; then
+	setenv bootargs ${bootargs} wlcore.mac=${wlmac}
+	setenv bootargs ${bootargs} wlan.mac=${wlmac}
+fi
+
+if itest.s "x" != "x${gpumem}" ; then
+	setenv bootargs ${bootargs} galcore.contiguousSize=${gpumem}
+fi
+
+if itest.s "x" != "x${cma}" ; then
+	setenv bootargs ${bootargs} cma=${cma}
+fi
+
+if itest.s "x" != "x${loglevel}" ; then
+	setenv bootargs ${bootargs} loglevel=${loglevel}
+fi
+
+if itest.s "x" != "x${show_fdt}" ; then
+	fdt print /
+fi
+
+if itest.s "x" != "x${show_env}" ; then
+	printenv
+fi
+
+if load ${devtype} ${devnum}:${distro_bootpart} ${a_zImage} ${prefix}zImage ; then
+	bootz ${a_zImage} - ${a_fdt}
+fi
+echo "Error loading kernel image"
diff --git a/board/boundarydevices/common/post-build.sh b/board/boundarydevices/common/post-build.sh
index 8f1d44496f..b8abb26540 100755
--- a/board/boundarydevices/common/post-build.sh
+++ b/board/boundarydevices/common/post-build.sh
@@ -7,7 +7,9 @@
 
 BOARD_DIR="$(dirname $0)"
 
-# bd u-boot looks for bootscript here
+# bd u-boot looks for standard bootscript
+install -m 0644 -D $BINARIES_DIR/boot.scr $TARGET_DIR/boot/
+# legacy 6x_bootscript script
 $HOST_DIR/bin/mkimage -A arm -O linux -T script -C none -a 0 -e 0 \
 -n "boot script" -d $BOARD_DIR/6x_bootscript.txt $TARGET_DIR/6x_bootscript
 
@@ -16,5 +18,8 @@ if [ -e $BINARIES_DIR/u-boot.imx ];
 then
     install -D -m 0644 $BINARIES_DIR/u-boot.imx $TARGET_DIR/u-boot.imx
     $HOST_DIR/bin/mkimage -A arm -O linux -T script -C none -a 0 -e 0 \
+    -n "upgrade script" -d $BOARD_DIR/upgrade.cmd $TARGET_DIR/upgrade.scr
+    # legacy 6x_upgrade script
+    $HOST_DIR/bin/mkimage -A arm -O linux -T script -C none -a 0 -e 0 \
     -n "upgrade script" -d $BOARD_DIR/6x_upgrade.txt $TARGET_DIR/6x_upgrade
 fi
diff --git a/board/boundarydevices/common/upgrade.cmd b/board/boundarydevices/common/upgrade.cmd
new file mode 100644
index 0000000000..249185dba4
--- /dev/null
+++ b/board/boundarydevices/common/upgrade.cmd
@@ -0,0 +1,154 @@
+if itest.s a$uboot_defconfig == a; then
+        echo "Please set uboot_defconfig to the appropriate value"
+        exit
+fi
+
+offset=0x400
+erase_size=0xC0000
+qspi_offset=0x0
+a_base=0x12000000
+
+if itest.s x51 == "x${imx_cpu}"; then
+	a_base=0x92000000
+elif itest.s x53 == "x${imx_cpu}"; then
+	a_base=0x72000000
+elif itest.s x6SX == "x${imx_cpu}" || itest.s x7D == "x${imx_cpu}"; then
+	a_base=0x82000000
+fi
+
+qspi_match=1
+setexpr a_qspi1 ${a_base}
+setexpr a_qspi2 ${a_qspi1} + 0x400000
+setexpr a_uImage1 ${a_qspi1} + 0x400
+setexpr a_uImage2 ${a_qspi2} + 0x400
+setexpr a_script ${a_base}
+
+setenv stdout serial,vga
+
+if sf probe || sf probe || sf probe 1 27000000 || sf probe 1 27000000 ; then
+	echo "probed SPI ROM" ;
+else
+	echo "Error initializing EEPROM"
+	exit
+fi
+
+if itest.s x7D == "x${imx_cpu}"; then
+	echo "check qspi parameter block" ;
+	if ${fs}load ${devtype} ${devnum}:1 ${a_qspi1} qspi-${sfname}.${uboot_defconfig} ; then
+	else
+		echo "parameter file qspi-${sfname}.${uboot_defconfig} not found on SD card"
+		exit
+	fi
+	if itest ${filesize} != 0x200 ; then
+		echo "------- qspi-${sfname}.${uboot_defconfig} 0x${filesize} != 0x200 bytes" ;
+		exit
+	fi
+	setexpr a_marker ${a_qspi1} + 0x1fc
+	if itest *${a_marker} != c0ffee01 ; then
+		echo "------- qspi-${sfname}.${uboot_defconfig} c0ffee01 marker missing" ;
+		exit
+	fi
+	if sf read ${a_qspi2} ${qspi_offset} 0x200 ; then
+	else
+		echo "Error reading qspi parameter from EEPROM"
+		exit
+	fi
+	if cmp.b ${a_qspi1} ${a_qspi2} 0x200 ; then
+		echo "------- qspi parameters match"
+	else
+		echo "------- qspi parameters mismatch"
+		qspi_match=0
+	fi
+fi
+
+echo "check U-Boot" ;
+
+if ${fs}load ${devtype} ${devnum}:1 ${a_uImage1} u-boot.$uboot_defconfig ; then
+else
+	echo "File u-boot.$uboot_defconfig not found on SD card" ;
+	exit
+fi
+echo "read $filesize bytes from SD card" ;
+if sf read ${a_uImage2} $offset $filesize ; then
+else
+	echo "Error reading boot loader from EEPROM" ;
+	exit
+fi
+
+if cmp.b ${a_uImage1} ${a_uImage2} $filesize ; then
+	echo "------- U-Boot versions match" ;
+	if itest.s "${qspi_match}" == "1" ; then
+		echo "------- upgrade not needed" ;
+		if itest.s "x" != "x${next}" ; then
+			if ${fs}load ${devtype} ${devnum}:1 ${a_script} ${next} ; then
+				source ${a_script}
+			else
+				echo "${next} not found on SD card"
+			fi
+		fi
+		exit
+	fi
+	erase_size=0x1000
+	if itest.s xMX25L6405D == "x${sfname}"; then
+		erase_size=0x10000
+	fi
+	setexpr filesize ${erase_size} - ${offset}
+fi
+
+echo "Need U-Boot upgrade" ;
+echo "Program in 5 seconds" ;
+for n in 5 4 3 2 1 ; do
+	echo $n ;
+	sleep 1 ;
+done
+echo "erasing" ;
+sf erase 0 ${erase_size} ;
+
+# two steps to prevent bricking
+echo "programming" ;
+setexpr a1 ${a_uImage1} + 0x400
+setexpr o1 ${offset} + 0x400
+setexpr s1 ${filesize} - 0x400
+sf write ${a1} ${o1} ${s1} ;
+sf write ${a_uImage1} $offset 0x400 ;
+
+if itest.s x7D == "x${imx_cpu}"; then
+	sf write ${a_qspi1} ${qspi_offset} 0x200
+fi
+
+echo "verifying" ;
+if sf read ${a_uImage2} $offset $filesize ; then
+else
+	echo "Error re-reading EEPROM" ;
+	exit
+fi
+if cmp.b ${a_uImage1} ${a_uImage2} $filesize ; then
+else
+	echo "Read verification error" ;
+	exit
+fi
+
+if itest.s x7D == "x${imx_cpu}"; then
+	if sf read ${a_qspi2} ${qspi_offset} 0x200 ; then
+	else
+		echo "Error re-reading qspi" ;
+		exit
+	fi
+	if cmp.b ${a_qspi1} ${a_qspi2} 0x200 ; then
+	else
+		echo "qspi parameter block verification error" ;
+		exit
+	fi
+fi
+
+if itest.s "x" != "x${next}" ; then
+	if ${fs}load ${devtype} ${devnum}:1 ${a_script} ${next} ; then
+		source ${a_script}
+	else
+		echo "${next} not found on ${devtype} ${devnum}"
+	fi
+fi
+
+while echo "---- U-Boot upgraded. reset" ; do
+	sleep 120
+done
diff --git a/configs/nitrogen6sx_defconfig b/configs/nitrogen6sx_defconfig
index 03c8f9a01e..b29adf299c 100644
--- a/configs/nitrogen6sx_defconfig
+++ b/configs/nitrogen6sx_defconfig
@@ -22,11 +22,14 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BOARDNAME="nitrogen6sx"
-BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
-# Last version of branch boundary-v2017.03
-BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/boundarydevices/u-boot-imx6/archive/4280a700.tar.gz"
+# Last version of branch boundary-v2017.07
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/boundarydevices/u-boot-imx6/archive/1530219d.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="nitrogen6sx"
+BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_BOOT_SCRIPT=y
+BR2_TARGET_UBOOT_BOOT_SCRIPT_SOURCE="board/boundarydevices/common/boot.cmd"
 
 # kernel
 BR2_LINUX_KERNEL=y
diff --git a/configs/nitrogen6x_defconfig b/configs/nitrogen6x_defconfig
index 049c68451b..5905a40e3e 100644
--- a/configs/nitrogen6x_defconfig
+++ b/configs/nitrogen6x_defconfig
@@ -22,11 +22,14 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BOARDNAME="nitrogen6q"
-BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
-# Last version of branch boundary-v2017.03
-BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/boundarydevices/u-boot-imx6/archive/4280a700.tar.gz"
+# Last version of branch boundary-v2017.07
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/boundarydevices/u-boot-imx6/archive/1530219d.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="nitrogen6q"
+BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_BOOT_SCRIPT=y
+BR2_TARGET_UBOOT_BOOT_SCRIPT_SOURCE="board/boundarydevices/common/boot.cmd"
 
 # kernel
 BR2_LINUX_KERNEL=y
diff --git a/configs/nitrogen7_defconfig b/configs/nitrogen7_defconfig
index 3b50828bce..fa8f36c631 100644
--- a/configs/nitrogen7_defconfig
+++ b/configs/nitrogen7_defconfig
@@ -21,11 +21,14 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BOARDNAME="nitrogen7"
-BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
-# Last version of branch boundary-v2017.03
-BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/boundarydevices/u-boot-imx6/archive/4280a700.tar.gz"
+# Last version of branch boundary-v2017.07
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/boundarydevices/u-boot-imx6/archive/1530219d.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="nitrogen7"
+BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_BOOT_SCRIPT=y
+BR2_TARGET_UBOOT_BOOT_SCRIPT_SOURCE="board/boundarydevices/common/boot.cmd"
 
 # kernel
 BR2_LINUX_KERNEL=y