In message 20061006033619.65376.qmail@web33205.mail.mud.yahoo.com you wrote:
I did
protect off all
For this to work, you need working flash driver support in U-Boot.
And *if* you have working flash driver support, I wonder why you need to do such things:
WRITE COMMAND SEQUENCE:
mw ff000555 00AA00AA mw ff0002AA 00550055 mw ff000555 00A000A0 mw ff000000 12345678
Please explain which flash driver you are using (cfi driver???), and what the exact problem is you are trying to solve.
timeout intervals) and also does a reset to bring back device to read array mode
mw.w ff000000 00F0 ; reset cmd
In a configuration with 2 x 16 bit devices that should be 00F000F0.
I have a ppc 8343 processor on board. I am wondering if U-boot that came with my target board has configuration that is preventing me to write to flash (but cp commands works fine with flash). Any one who
This statement makes no sense to me. If cp to flash works fine, then obviously writing to flash is working fine, because this is what cp does when the target address points to flash memory - programming data to flash.
Explain what you want to do, and why, and what is not working - it sounds as if you have a perfectly working CFI driver on your board, so what is the problem?
Best regards,
Wolfgang Denk