board is successfully booting from sd card but board not booting from nand
i want to flash nand want guidance
// successfully boot from sd
arch=arm
baudrate=115200
board=am335x
board_name=A335BNLT
board_rev=0A6A
bootargs_defaults=setenv bootargs console=${console} ${optargs}
bootcmd=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootenv; then echo Loaded environment from ${bo;
bootdelay=1
bootenv=uEnv.txt
bootfile=uImage
console=ttyO0,115200n8
cpu=armv7
dfu_alt_info_emmc=rawemmc mmc 0 3751936
dfu_alt_info_mmc=boot part 0 1;rootfs part 0 2;MLO fat 0 1;MLO.raw mmc 100 100;u-boot.img.raw mmc 300 3C0;u-boot.img fat 0 1;uEnv.txt fat 0 1
dfu_alt_info_nand=SPL part 0 1;SPL.backup1 part 0 2;SPL.backup2 part 0 3;SPL.backup3 part 0 4;u-boot part 0 5;kernel part 0 7;rootfs part 0 8
ethact=cpsw
ethaddr=90:59:af:82:3d:9f
fdt_high=0xffffffff
fdtaddr=0x80F80000
findfdt=if test $board_name = A335BONE; then setenv fdtfile am335x-bone.dtb; fi; if test $board_name = A33515BB; then setenv fdtfile am335x-evmi
importbootenv=echo Importing environment from mmc …; env import -t $loadaddr $filesize
ip_method=none
kloadaddr=0x80007fc0
loadaddr=0x80200000
loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}
loadramdisk=fatload mmc ${mmcdev} ${rdaddr} ramdisk.gz
loaduimage=ext2load mmc ${mmcdev}:2 ${kloadaddr} /boot/${bootfile}
loaduimagefat=fatload mmc ${mmcdev} ${kloadaddr} ${bootfile}
mmcargs=run bootargs_defaults;setenv bootargs ${bootargs} root=${mmcroot} rootfstype=${mmcrootfstype} ip=${ip_method}
mmcboot=echo Booting from mmc …; run mmcargs; bootm ${kloadaddr}
mmcdev=0
mmcroot=/dev/mmcblk0p2 ro
mmcrootfstype=ext3 rootwait
mtdids=nand0=omap2-nand.0
mtdparts=mtdparts=omap2-nand.0:128k(SPL),128k(SPL.backup1),128k(SPL.backup2),128k(SPL.backup3),1920k(u-boot),128k(u-boot-env),5m(kernel),-(root)
nandargs=setenv bootargs console=${console} ${optargs} root=${nandroot} rootfstype=${nandrootfstype}
nandboot=echo Booting from nand …; run nandargs; nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; bootm ${loadaddr}
nandimgsize=0x500000
nandroot=ubi0:rootfs rw ubi.mtd=7,2048
nandrootfstype=ubifs rootwait=1
nandsrcaddr=0x280000
netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
netboot=echo Booting from network …; setenv autoload no; dhcp; tftp ${loadaddr} ${bootfile}; run netargs; bootm ${loadaddr}
nfsopts=nolock
ramargs=setenv bootargs console=${console} ${optargs} root=${ramroot} rootfstype=${ramrootfstype}
ramboot=echo Booting from ramdisk …; run ramargs; bootm ${loadaddr}
ramroot=/dev/ram0 rw ramdisk_size=65536 initrd=${rdaddr},64M
ramrootfstype=ext2
rdaddr=0x81000000
rootpath=/export/rootfs
soc=am33xx
spiargs=setenv bootargs console=${console} ${optargs} root=${spiroot} rootfstype=${spirootfstype}
spiboot=echo Booting from spi …; run spiargs; sf probe ${spibusno}:0; sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; bootm ${loadaddr}
spibusno=0
spiimgsize=0x362000
spiroot=/dev/mtdblock4 rw
spirootfstype=jffs2
spisrcaddr=0xe0000
static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
stderr=serial
stdin=serial
stdout=serial
usbnet_devaddr=90:59:af:82:3d:9f
vendor=ti
ver=U-Boot 2013.01.01 (Jun 25 2013 - 16:42:52)
// after booting from nand
Welcome to minicom 2.5
OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB0
Press CTRL-A Z for help on special keys
U-Boot# AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0
syntax error
U-Boot#
U-Boot SPL 2013.10 (Nov 28 2013 - 06:36:11)
reading args
spl: error reading image args, err - -1
reading u-boot.img
reading u-boot.img
U-Boot 2013.10 (Nov 28 2013 - 06:36:11)
I2C: ready
DRAM: 512 MiB
WARNING: Caches not enabled
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Net: cpsw, usb_ether
Hit any key to stop autoboot: 0
mmc - MMC sub system
Usage:
mmc read addr blk# cnt
mmc write addr blk# cnt
mmc erase blk# cnt
mmc rescan
mmc part - lists available partition on current mmc device
mmc dev [dev] [part] - show or set current mmc device [partition]
mmc list - lists available devices
Card did not respond to voltage select!
** Bad device mmc 0 **
Wrong Image Format for bootm command
ERROR: can’t get kernel image!
U-Boot#