[flashrom] W836xx: HP Mini 110-3700: flashrom -V

[Olivier Langlois]

> Because...
> > Found chipset "Intel NM10" with PCI ID 8086:27bc. Enabling flash write... 
> > …
> > GCS = 0x5d0c60: BIOS Interface Lock-Down: disabled, Boot BIOS Straps: 0x3 (LPC)
> 
> The chipset is configured to boot via LPC, hence we do only probe for
> LPC chips. But your chip is SPI, how does that fit together? The
> solution of this apparent contradiction is that the superio is
> translating between LPC on the host side and SPI on the flash side.
> This is (or was) a common scheme in laptops and one of the reasons why
> adding support for them is so hard (the superio datasheets are often
> hard to come by). There is nobody working on adding support for your
> superio ATM, but Carl-Daniel might have a further developed patch on
> his harddisk or be able to give you more details about it.

This stuff is so fun! I kid you not, I spent only 1 evening with your
tools and I am already seeing dmesg output much differently then
yesterday :-)

I will be working on my superio if necessary. Hopefully, I'll be able to
get some assistance from you.

That being said, I am a little bit surprised by your diagnostic because
I have gathered information as suggested on

http://www.coreboot.org/Laptop

and superiotool has reported:

Found ITE IT8502E/TE/G (id=0x8502, rev=0x1) at 0x4e

Since the first entry in the Laptop survey table on the same page is
reporting a successful installation with the same superio, I was hoping
that my quest would be trivial. Apparently things aren't that simple

So the same superio chip can be configured to work with LPC or SPI
flash?

For my flash chip, god I think I'll need a magnifying glass. On the
chip, it is written:

25Q168VSIC 1120 or maybe it is
25Q16BVSIG 1120

I have downloaded the W25Q16BV chip datasheet. Does someone know if it
is the same than the W25Q16 supported by flashrom?

Carl-Daniel: You are welcome to directly communicate with me if you have
information to share concerning the superio chip.

Greetings,
Olivier