[flashrom] 2 flashes on SPI bus

[Andrei Dolnikov]

Hello folks,

I would like to use a flashrom utility to access 2 serial flashes on
the SPI bus of my x86 board, but I'm struggling with the second one.
So I'm looking for any help, hints or advices which can help me to
solve this issue.

I have custom x86 board (Atom n450 CPU, ICH8M chipset) which have 2
serial flashes installed on it.
The first one is SST25VF016B and the second one is Numonyx M45PE16.
The M45PE16 is pretty the similar to the M25PE16.
Both this chips are connected to the SPI bus of the ICH8M chipset, the
CS (chip select) signal of the SST25VF is routed to the SPI_CS0 and
the CS signal of the M45PE16 is routed to the SPI_CS1.
I can successfully read, erase and write the SST flash.

Trying to figure out if flashrom utility can find the second Numonyx
flash I've added the proper description for it to the flashchips.c
(actually I've leaved it the same as for M25PE16 but changed model_id
field). Unfortunately it didn't help me at all.

So I'm wondering if flashrom can't find M45PE16 flash because of
cleared SPI_CS1 signal and how can I enable it?
Does flashrom utility support such kind of configurations or does it
simply searching for the flash on CS0?
Probably some of you have some ideas on enabling SPI_CS1 or even some
useful links etc.
Unfortunately the official Intel ICH8M documentation looks kind of
complicated and no so clear to me.
I'll of course digg into it but any help, hints or advices are highly
appreciated!

Thanks in advance,
xborodax.