Update buidlroot to version 2016.08.1

bsp/buildroot/board/boundarydevices/common/6x_upgrade.txt

@@ -0,0 +1,69 @@
+if itest.s a$uboot_defconfig == a; then
+        echo "Please set uboot_defconfig to the appropriate value"
+        exit
+fi
+
+offset=0x400
+a_uImage1=0x12000000
+a_uImage2=0x12400000
+
+if itest.s x6SX == "x${cpu}" || itest.s x7D == "x${cpu}"; then
+	a_uImage1=0x82000000
+	a_uImage2=0x82400000
+fi
+
+setenv stdout serial,vga
+echo "check U-Boot" ;
+
+if load ${dtype} ${disk}:1 ${a_uImage1} u-boot.$uboot_defconfig ; then
+else
+	echo "No U-Boot image found on SD card" ;
+	exit
+fi
+echo "read $filesize bytes from SD card" ;
+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 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" ;
+	exit
+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 0xC0000 ;
+
+# 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 ;
+
+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
+while echo "---- U-Boot upgraded. reset" ; do
+	sleep 120
+done