I've got a problem with my Beagleboard Rev C2. When I switch it on and watch
serial output, all it says is "40V". Pressing the user button while applying
power doesn't have any effect. The only way I've been able to bring up the
board was using pserial and ukermit[1]. However, if x-load.bin and u-boot.bin
are transmitted in this way, the boot process continues normally, i.e., if
there's a bootable system on sdcard, the system boots and works as expected.
Recovery sdcrads ([2,3]) appear to work in this context, however, both after
typing "reset" at the u-boot prompt or after reapplying power, the situation is
as before.
Without a bootable system on sdcard or when I cancel booting, I get a u-boot
prompt. Looking around, I typed "nand bad" and got:
Device 0 bad blocks
0cf40000
My understanding of this situation is that the NAND block containing x-load.bin
is bad, thus (almost) nothing happens when I apply power. Now I wonder how to
recover my beagleboard so that it can boot without an x86 attached to the
serial port.
a) Is there any way to avoid the bad block when flashing the bootloader? Maybe
either the bad block could be marked or x-load.bin could be written to an
address "after" the bad block.
b) Alternatively - is it possible to make pserial and work on ARM? I've got a
second beagleboard and it would be more practical for me to use that rather
than an x86. I've compiled the programs successfully, they seem to work when I
type "pserial --help" / "ukermit --help", however, they quit with "Aborted"
when I really want to use them.
I'm afraid I need detailed instructions.
Regards,
Thomas
[1] http://elinux.org/BeagleBoardRecovery#UART_recovery
[2] http://elinux.org/BeagleBoardUbuntu#Upgrade_X-loader_and_U-boot
[3] http://elinux.org/BeagleBoardRecovery#MMC_recovery
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