Hi,
I would need to restore the NAND of a OMAP3530 which has been completely erased and I need some help to restore it and make my board ready to use again.
This device is installed on a embedded board which runs Linux.
I used to reflash the NAND with this script from SD:
dir=$PWD
uboot=u-boot.bin
uimage=uImage.bin
rootfs=fs-image.tar.bz2
if [ -e $uimage ]; then
echo "Erasing kernel partition ..."
flash_eraseall /dev/mtd3
echo "Writing kernel to NAND ..."
nandwrite -p /dev/mtd3 $uimage
else
echo "ERROR: couldn't find kernel binary"
fi
if [ -e $rootfs ]; then
umount /dev/mtdblock4
echo "Erasing and formatting rootfs partition ..."
flash_eraseall -j /dev/mtd4
echo "Mounting rootfs partition ..."
mkdir -p /media/mtdblock4
mount -t jffs2 /dev/mtdblock4 /media/mtdblock4
cd /media/mtdblock4
tar -xjvf $dir/$rootfs
sync
echo "Loading Files ..."
cp -Rf $dir/MYDEV/* .
echo "Installation complete
halt
else
echo "ERROR: couldn't find rootfs tarball"
fi
When I run u-boot, the built-in command I could use are these:
base
bdinfo
bdinfo
boot
bootd
bootm
bootp
cmp
coninfo
cp
crc32
echo - echo args to console
editenv - edit environment variable
exit - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls - list files in a directory (default /)
false - do nothing, unsuccessfully
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory (default /)
fsinfo - print information about filesystems
fsload - load binary file from a filesystem image
go - start application at address 'addr'
help - print command description/usage
i2c - I2C sub-system
imxtract- extract a part of a multi-image
itest - return true/false on integer compare
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loady - load binary file over serial line (ymodem mode)
loop - infinite loop on address range
ls - list files in a directory (default /)
md - memory display
mm - memory modify (auto-incrementing address)
mmc - MMC sub-system
mtest - simple RAM read/write test
mw - memory write (fill)
nand - NAND sub-system
nandecc - switch OMAP3 NAND ECC calculation algorithm
nboot - boot from NAND device
nm - memory modify (constant address)
printenv- print environment variables
rarpboot- boot image via network using RARP/TFTP protocol
reset - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
true - do nothing, successfully
version - print monitor version
Now, when I plug the SD card, it seems that u-boot and the whole system is going to be installed, but on reboot nothing is reinstalled.
Is there a common script useful to properly re-flash the NAND of the device ? Alternatively, could I use the JTAG programmer from SEGGER?
Well, any suggestion is appreciated.
Thank you in advance.
Regards,
Simon
