bank switching
M8 (Servaes Joordens)
Servaes.Joordens at m8.nl
Mon Oct 29 12:14:10 EDT 2007
hello linux mtd-guys,
I use the blackfin embedded uClinux environment. I want to change a
flash chip-driver to support all four memory banks which are available.
Right now, I have a driver which supports 1 memory bank of 2MB. I want
to be able to use the other three memory banks also 2-4Mb, 4-6MB and 6-8MB.
Memory bank selection is done by using general io pf4 and pf5. For
instance: when pf4 is enabled and pf5 is disabled I am writing in the
region 2-4MB.
What would be the correct way to change the chip driver? Do you have a
template or tutorial on bank switching?
The driver I want to change is: cfi_cmdset_0001.c
I hope someone can help me.
regards,
Servaes Joordens
--
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