diff -Nuar u-boot-2011.09/build.sh u-boot-2011.09-ok335x/build.sh
--- u-boot-2011.09/build.sh	1970-01-01 08:00:00.000000000 +0800
+++ u-boot-2011.09-ok335x/build.sh	2019-08-01 23:06:07.067744283 +0800
@@ -0,0 +1,66 @@
+#!/bin/bash
+
+TFTP_PATH=/tftp
+IMGS_PATH=../images
+IMG_NAME="u-boot.img MLO"
+
+CROSSTOOL=/opt/crosstool/cortex-a7/bin/arm-linux-gnueabi-
+JOBS=`cat /proc/cpuinfo |grep "processor"|wc -l`
+
+
+function do_clean()
+{
+    make CROSS_COMPILE=${CROSSTOOL} distclean
+    rm -f MLO tags
+}
+
+function do_modify()
+{
+    grep "export ARCH=arm" Makefile > /dev/null
+
+    if [ $? == 0  ] ; then
+        return ;
+    fi
+
+    echo "Modify Makefile for  ARCH and cross compiler"
+    sed -i "/ARCH CPU BOARD VENDOR SOC/a\export CROSS_COMPILE=${CROSSTOOL}" Makefile
+    sed -i '/ARCH CPU BOARD VENDOR SOC/a\export ARCH=arm' Makefile
+}
+
+function do_build()
+{
+    make ok335x_config
+
+    make -j${JOBS}
+
+    chmod a-x u-boot
+
+    chmod a+x ${IMG_NAME}
+}
+
+function do_install()
+{
+    if [ -d $TFTP_PATH ] ;then 
+        cp ${IMG_NAME} $TFTP_PATH
+    fi
+
+    if [ -d ${IMGS_PATH} ] ; then
+        cp ${IMG_NAME} $IMGS_PATH
+    fi
+}
+
+if [ "$1" == "clean" ] ; then 
+
+    do_clean
+    exit 0;
+fi
+
+do_modify
+
+set -e
+
+do_build
+
+do_install
+
+
diff -Nuar u-boot-2011.09/common/cmd_led_flash.c u-boot-2011.09-ok335x/common/cmd_led_flash.c
--- u-boot-2011.09/common/cmd_led_flash.c	2014-01-18 11:05:20.000000000 +0800
+++ u-boot-2011.09-ok335x/common/cmd_led_flash.c	2019-08-01 23:06:07.067744283 +0800
@@ -13,6 +13,11 @@
 
 extern int g_on;
 
+void lcd_backlight_on(void)
+{
+    __raw_writel(1<<7, 0x44E07194);
+}
+
 void update_led()
 {
 	static u32 n = 0;
diff -Nuar u-boot-2011.09/drivers/video/cfb_console.c u-boot-2011.09-ok335x/drivers/video/cfb_console.c
--- u-boot-2011.09/drivers/video/cfb_console.c	2013-12-04 14:05:19.000000000 +0800
+++ u-boot-2011.09-ok335x/drivers/video/cfb_console.c	2019-08-01 23:06:07.067744283 +0800
@@ -1820,7 +1820,7 @@
 
 	return 0;
 }
-int g_on = 0;
+int g_on = 1;
 void show_process(unsigned long a,unsigned long b)
 {
 	static int last_percent = 100,type = 0;
@@ -1833,6 +1833,7 @@
 	if(percent != last_percent)
 	{
 		update_led();
+        lcd_backlight_on();
 			
 		/*update uart console*/
 		printf("\r%02d%% complete",percent);
@@ -1849,34 +1850,19 @@
 			switch(type)
 			{
 			case 0:
-				title = "Erasing nand chip............";
+				title = "Burning Env to nand...";
 				break;
 			case 1:
-				title = "Reading MLO from MMC.........";
+				title = "Burning bootloader to nand...";
 				break;
 			case 2:
-				title = "Burning MLO to nand..........";
-				break;
-			case 3:
-				title = "Reading u-boot.img from MMC..";
-				break;
-			case 4:
-				title = "Burning u-boot.img to nand...";
-				break;
-			case 5:
-				title = "Reading uImage from MMC......";
-				break;
-			case 6:
 				title = "Burning uImage to nand.......";
 				break;
-			case 7:
-				title = "Reading ubi.img from MMC.....";
-				break;
-			case 8:
+			case 3:
 				title = "Burning ubi.img to nand......";
 				break;
 			default:
-				title = "env is null..................";
+				title = "env TYPE is null..................";
 				break;
 			}
 			
diff -Nuar u-boot-2011.09/include/configs/ok335x.h u-boot-2011.09-ok335x/include/configs/ok335x.h
--- u-boot-2011.09/include/configs/ok335x.h	2014-01-23 09:45:03.000000000 +0800
+++ u-boot-2011.09-ok335x/include/configs/ok335x.h	2019-08-02 00:26:56.203837301 +0800
@@ -61,17 +61,11 @@
 	"nandroot=ubi0:rootfs rw ubi.mtd=7,2048\0" \
 	"nandrootfstype=ubifs rootwait=1\0" 
 #else
-#define CON		\
-	"console=ttyO0,115200n8\0" \
-	"optargs=\0" \
-	"mmcroot=/dev/mmcblk0p2 ro\0" \
-	"mmcrootfstype=ext3 rootwait\0" \
-	"nandroot=ubi0:rootfs rw ubi.mtd=7,2048\0" \
-	"nandrootfstype=ubifs rootwait=1\0" 
+#define CON		"console=ttyO0,115200n8\0" 
 #endif
 
 /* set to negative value for no autoboot */
-#define CONFIG_BOOTDELAY		3
+#define CONFIG_BOOTDELAY		1
 
 #define CONFIG_MMC
 #define CONFIG_NAND
@@ -81,141 +75,32 @@
 #define CONFIG_CFB_CONSOLE
 #define CONFIG_VGA_AS_SINGLE_DEVICE
 
+#define CONFIG_BOOTARGS    "console=ttyO0,115200n8 root=ubi0:rootfs rw ubi.mtd=4,2048 rootfstype=ubifs rootwait=1"
+#define CONFIG_BOOTCOMMAND "run confaddr; nandecc hw 2; nand read ${loadaddr} ${kernaddr} ${kernsize}; bootm ${loadaddr}"
+#define CONFIG_IPADDR      192.168.2.222
+#define CONFIG_SERVERIP    192.168.2.2
+#define CONFIG_BOOTFILE    uImage
+#define CONFIG_LOADADDR    0x80200000
 
-#if 1
 #define CONFIG_EXTRA_ENV_SETTINGS \
-	CON	\
-	"screentype=R\0"\
-	"screensize=800x480-7\0"\
-	"loadaddr=0x80200000\0" \
-	"kloadaddr=0x80007fc0\0" \
-	"fdtaddr=0x80F80000\0" \
-	"fdt_high=0xffffffff\0" \
-	"rdaddr=0x81000000\0" \
-	"bootdev=MMC\0"\
-	"bootfile=uImage\0" \
-	"fdtfile=\0" \
-	"mmcdev=0\0" \
-	"nandsrcaddr=0x280000\0" \
-	"nandimgsize=0x500000\0" \
-	"rootpath=/export/rootfs\0" \
-	"nfsopts=nolock\0" \
-	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
-		"::off\0" \
-	"ramroot=/dev/ram0 rw ramdisk_size=65536 initrd=${rdaddr},64M\0" \
-	"ramrootfstype=ext2\0" \
-	"ip_method=none\0" \
-	"bootargs_defaults=setenv bootargs " \
-		"console=${console} " \
-		"${optargs}\0" \
-	"mmcargs=run bootargs_defaults;" \
-		"setenv bootargs ${bootargs} " \
-		"root=${mmcroot} " \
-		"rootfstype=${mmcrootfstype} ip=${ip_method} screentype=${screentype} screensize=${screensize}\0" \
-	"nandargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=${nandroot} " \
-		"rootfstype=${nandrootfstype} screentype=${screentype} screensize=${screensize}\0" \
-	"spiroot=/dev/mtdblock4 rw\0" \
-	"spirootfstype=jffs2\0" \
-	"spisrcaddr=0xe0000\0" \
-	"spiimgsize=0x362000\0" \
-	"spibusno=0\0" \
-	"spiargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=${spiroot} " \
-		"rootfstype=${spirootfstype}\0" \
-	"netargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=/dev/nfs " \
-		"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
-		"ip=dhcp\0" \
-	"bootenv=uEnv.txt\0" \
-	"loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
-	"importbootenv=echo Importing environment from mmc ...; " \
-		"env import -t $loadaddr $filesize\0" \
-	"ramargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=${ramroot} " \
-		"rootfstype=${ramrootfstype}\0" \
-	"loadramdisk=fatload mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
-	"loaduimagefat=fatload mmc ${mmcdev} ${kloadaddr} ${bootfile}\0" \
-	"loaduimage=ext2load mmc ${mmcdev}:2 ${kloadaddr} /boot/${bootfile}\0" \
-	"mmcboot=echo Booting from mmc ...; " \
-		"run mmcargs; " \
-		"bootm ${kloadaddr}\0" \
-	"nandboot=echo Booting from nand ...; " \
-		"run nandargs; " \
-		"nandecc hw 2;"\
-		"nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; " \
-		"bootm ${loadaddr}\0" \
-	"spiboot=echo Booting from spi ...; " \
-		"run spiargs; " \
-		"sf probe ${spibusno}:0; " \
-		"sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; " \
-		"bootm ${loadaddr}\0" \
-	"netboot=echo Booting from network ...; " \
-		"setenv autoload no; " \
-		"dhcp; " \
-		"tftp ${loadaddr} ${bootfile}; " \
-		"run netargs; " \
-		"bootm ${loadaddr}\0" \
-	"ramboot=echo Booting from ramdisk ...; " \
-		"run ramargs; " \
-		"bootm ${loadaddr}\0" \
-	"findfdt="\
-		"if test $board_name = A335BONE; then " \
-			"setenv fdtfile am335x-bone.dtb; fi; " \
-		"if test $board_name = A33515BB; then " \
-			"setenv fdtfile am335x-evm.dtb; fi; " \
-		"if test $board_name = A335X_SK; then " \
-			"setenv fdtfile am335x-evmsk.dtb; fi\0" \
-    "auto_update_nand=  echo ---------------Begin update system to Nand---------------;led all on;"\
-    			"setenv TYPE 0;nand erase.chip;mmc rescan; "\
-                "setenv TYPE 1;fatload mmc 0 80A00000 MLO;		 setenv TYPE 2;nandecc hw 2;nand write.i 80A00000 0 ${filesize}; "\
-				"setenv TYPE 3;fatload mmc 0 80A00000 u-boot.img;setenv TYPE 4;nandecc hw 2;nand write.i 80A00000 80000 ${filesize}; "\
-                "setenv TYPE 5;fatload mmc 0 80A00000 uImage;	 setenv TYPE 6;nandecc hw 2;nand write.i 80A00000 280000 ${filesize}; "\
-                "setenv TYPE 7;fatload mmc 0 80A00000 ubi.img;	 setenv TYPE 8;nandecc sw;nand write.i 80A00000 780000 ${filesize};"\
-                "echo ;"\
-                "echo --------------Update system to Nand success--------------;led flash all;\0"\
-    "update_nand=  echo ---------------Begin update system to Nand---------------;led all on;"\
-    			"setenv TYPE 0;nand erase.chip;mmc rescan; "\
-                "setenv TYPE 1;fatload mmc 0 80A00000 MLO;		 setenv TYPE 2;nandecc hw 2;nand write.i 80A00000 0 ${filesize}; "\
-				"setenv TYPE 3;fatload mmc 0 80A00000 u-boot.img;setenv TYPE 4;nandecc hw 2;nand write.i 80A00000 80000 ${filesize}; "\
-				"setenv TYPE 5;fatload mmc 0 80A00000 uImage;	 setenv TYPE 6;nandecc hw 2;nand write.i 80A00000 280000 ${filesize}; "\
-                "setenv TYPE 7;fatload mmc 0 80A00000 ubi.img;	 setenv TYPE 8;nandecc sw;nand write.i 80A00000 780000 ${filesize};"\
-                "echo ;"\
-                "echo --------------Update system to Nand success--------------;led all off;"\
-                
-
-#define CONFIG_BOOTCOMMAND \
-	" if test $bootdev = MMC; then " \
-		"mmc dev ${mmcdev}; mmc rescan;"\
-		"echo SD/MMC found on device ${mmcdev};" \
-		"if run loadbootenv; then " \
-			"echo Loaded environment from ${bootenv};" \
-			"run importbootenv;" \
-		"fi;" \
-		"if test -n $uenvcmd; then " \
-			"echo Running uenvcmd ...;" \
-			"run uenvcmd;" \
-		"fi;" \
-		"if run loaduimagefat; then " \
-			"run mmcboot;" \
-		"elif run loaduimage; then " \
-			"run mmcboot;" \
-		"else " \
-			"echo Could not find ${bootfile} ;" \
-		"fi;" \
-	"else " \
-		"run nandboot;" \
-	"fi;" \
-	
-#else
-#define CONFIG_BOOTARGS "console=ttyO0,115200n8 earlyprintk ubi.mtd=7,2048 root=ubi0:rootfs rootfstype=ubifs init=/init androidboot.console=ttyO0"
-#define CONFIG_BOOTCOMMAND "nandecc hw 2;nand read.i 80007fc0 280000 400000;bootm 80007fc0"
-#endif
+    "screentype=C\0" \
+    "screensize=800x480-7\0" \
+    "confaddr=set spladdr 0x0; set ubootaddr 0x80000; set envaddr 0xc0000; set envsize 0x40000; " \
+        "set kernaddr 0x100000; set kernsize 0x500000; set rootaddr 0x600000; set rootsize 0x9600000 \0" \
+    "confimgs=set spl 'MLO'; set uboot 'u-boot.img'; set kernel 'uImage'; set rootfs 'ubifs.img' \0" \
+    "conf=run confaddr; run confimgs; set filesize 0x20000; \0" \
+    "benv=run confaddr; set TYPE 0; nandecc hw 0; nand erase ${envaddr} ${envsize}; save\0" \
+    "bbl=run conf; set TYPE 1; nand erase 0 100000; tftp ${loadaddr} ${spl}; " \
+        "nandecc hw 2; nand write.i ${loadaddr} ${spladdr} ${filesize}; " \
+        "tftp ${uboot}; nandecc hw 2;nand write.i ${loadaddr} ${ubootaddr} ${filesize}\0" \
+    "bkr=run conf; set TYPE 2; tftp ${loadaddr} ${kernel}; nand erase ${kernaddr} ${kernsize}; "\
+        "nandecc hw 2; nand write.i ${loadaddr} ${kernaddr} ${filesize}\0" \
+    "bfs=run conf; set TYPE 3; tftp ${loadaddr} ${rootfs}; nand erase ${rootaddr} ${rootsize}; "\
+        "nandecc hw 2; nand write.i ${loadaddr} ${rootaddr} ${filesize}\0" \
+    "bsys=nand scrub.chip; run conf; run bbl; run bkr; run bfs; reset\0" \
+    "tb=run conf; tftp ${loadaddr} ${kernel}; bootm ${loadaddr} \0"
 
+	
 #define CONFIG_MISC_INIT_R
 #define CONFIG_SYS_AUTOLOAD		"yes"
 #define CONFIG_CMD_CACHE
@@ -412,7 +297,7 @@
 #define CONFIG_SYS_MONITOR_LEN		(256 << 10) /* Reserve 2 sectors */
 #define CONFIG_SYS_FLASH_BASE		PISMO1_NAND_BASE
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
-#define MNAND_ENV_OFFSET		0x260000 /* environment starts here */
+#define MNAND_ENV_OFFSET		    0xC0000 /* environment starts here */
 #define CONFIG_SYS_ENV_SECT_SIZE	(128 << 10)	/* 128 KiB */
 #define CONFIG_ENV_OFFSET		MNAND_ENV_OFFSET
 #define CONFIG_ENV_ADDR			MNAND_ENV_OFFSET
diff -Nuar u-boot-2011.09/Makefile u-boot-2011.09-ok335x/Makefile
--- u-boot-2011.09/Makefile	2013-11-20 14:14:16.000000000 +0800
+++ u-boot-2011.09-ok335x/Makefile	2019-08-01 23:06:07.071744283 +0800
@@ -155,6 +155,8 @@
 # load ARCH, BOARD, and CPU configuration
 include $(obj)include/config.mk
 export	ARCH CPU BOARD VENDOR SOC
+export ARCH=arm
+export CROSS_COMPILE=/opt/crosstool/cortex-a7/bin/arm-linux-gnueabi-
 
 # set default to nothing for native builds
 ifeq ($(HOSTARCH),$(ARCH))