[U-Boot] MPC85xx UPM NAND
Alemao
xcarandiru at gmail.com
Sat Oct 10 00:37:50 CEST 2009
Hi all,
I have used UPM in a MPC83xx with LBC running at 64MHz.
Now I have a MPC85xx, with LBC at 41MHz.
It only works if I put a delay in drivers/mtd/nand/fsl_upm.c :
nand_write_buf(), otherwise I lost one byte. But it takes toooo long
writing, which makes their use impractical.
I saw in board/tqc/tqm85xx/nand.c that the driver use an UPM
configuration for each frequency.
Can some one tell me what signals I have to change or just some hint
about what could be causing this behavior?
Im using UPM waveform editor and u-boot-2009-03.
Thanks in advance,
--
Alemao
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