Hi folks -
I have made quite a bit of progress on this - with a small bit of
wailing and gnashing of teeth, I managed to get a redboot image
compiled with nand2k support and the eeprom read/write functionality
that appears to work perfectly to boot to a redboot prompt using
serial_blaster (with some slight modifications to the serial blaster
code, which I will be happy to contribute back to the community). I
have, however, hit a wall and I would greatly appreciate some help
from the community.
I have managed, using the following commands, to restore the NANDBOOT
loader:
mfill -b 0x00200000 -l 4096 -p 0
load -v -r -b 0x00200000 -m xmodem
eeprom_write -b 0x00200000 -o 0 -l 2048
and the following commands to write the bootrom image:
load -v -r -b 0x00200000 -m xmodem
fis write -f 0x60000000 -b 0x00200000 -l 0x4000
These two images appear to be working fine, as the machine boots with
the following output, which is identical to another 7260 that I have:
>> TS-NANDBOOT, Rev 1.01 - built 10:30:52, Dec 20 2005
>> Copyright (C) 2005, Technologic Systems
>> TS-BOOTROM, Rev 1.08 - built 16:18:21, Jun 5 2006
>> Copyright (C) 2006, Technologic Systems
>> TS-7260: Rev >E1 CPU, Rev E PLD, 64MB SDRAM, options ( SDCARD )
>> TS-5620: detected, battery OK, time ( 06:27:11, Jan 24 2008 )
The trouble that I am having is that it is not loading redboot (and
consequently not booting to linux). I determined on my other board
(using fis list at a redboot prompt) that the redboot section starts
at address 0x67D20000, so I have written redboot using the following
commands:
Using the redboot image from here:
ftp://ftp.embeddedarm.com/images/redboot/ts7260-nand2k-128-kernel
load -v -r -b 0x00200000 -m xmodem
fis write -f 0x67D20000 -b 0x00200000 -l 0x40000
Note, however, that message 7367 indicates that the correct address is
0x61D04000, which I believe applies to the 32MB variety.
I would really appreciate any guidance or ideas that anyone might have.
Thanks,
/-Will
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