In uboot, I did something like
nand erase 0 80000
nand write 80200000 0 80000
but something went wrong. Seems that now bootrom detects something in
NAND flash and then crashes.
Result is that with User button _not_ pressed I don't get anything any
more, no ..40T.. nothing.
Okay, then _pressing_ the user button should bring me back to U-Boot
from SDCard. But this results in
-- cut --
Texas Instruments X-Loader 1.41
Starting on with MMC
Reading boot sector
717948 Bytes Read from MMC
Starting OS Bootloader from MMC...
U-Boot 1.1.4 (Apr 2 2008 - 13:42:13)
OMAP3430-GP rev 2, CPU-OPP2 L3-133MHz
TI 3430Beagle 2.0 Version + mDDR (Boot ONND)
DRAM: 128 MB
Flash: 0 kB
NAND:NAND device: Manufacturer ID: 0x2c, Chip ID: 0x01 (-ge AND 128MiB
NAND bus width 16 instead 8 bit
<nothing any more>
-- cut --
Any idea? I think I need at least a working Uboot prompt to be able to
erase trash in NAND flash?
Above is TI's uboot from code.google.com, but same happens with
Steve's git uboot.
The shorter-term work-around is to boot via the serial port. Once you
have loaded a valid u-boot, you can erase the flash and get back to