Although I have not verified by connecting a serial console, it looks
as if I have damaged the NAND partition with U-Boot while
experimenting with yaffs2 drivers :(
Now, I can't boot the machine any more. it does no longer respond to
different Fn keys as described at http://projects.kwaak.net/twiki/bin/view/Epc700/UbootStuff
).
Looking into the datasheets gave initial hope - but only the JZ4740
has an internal Boot ROM that can boot from USB (by exposing the
device as a client to a host). The JZ4730 can only boot from NAND or a
connected ROM. So if bootsel is hardwired (I assume it is) and there
is no external ROM (we have no info about such a thing), only JTAG
remains.
Any ideas? Hints? Experiences? Experienced guys to contact?
BR,
Nikolaus
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