[flashrom] Issue with internal access to the W39V040FB

[Stefan Tauner]

On Fri, 1 Jan 2016 16:18:17 +0300
Andrey Korolyov <andrey at xdel.ru> wrote:

> Hello and Happy New Year,
> 
> a couple of days ago I acquired an old GeodeLX-based thin client
> TONK-1202/ТОНК-1202 (cyr) for a purpose to put coreboot on it, because
> board is very simular to existing ones in the coreboot tree and there
> should be no big deal to make a port. Aside from very funny issue that
> I am not able to boot modern 2.6.18+ i386 Linux kernel on it (ALIX
> Geode board said to have same issue [0], but it has been reportedly
> fixed by a vendor bios update), all other Linux variants (2.4.xx and
> 2.6.13) and NetBSD 7.0 are somehow messing with the internal
> interface, with no positive outcome as a result:
> 
> ./flashrom -p internal:laptop=this_is_not_a_laptop -c W39V040FB -r bios.bin -V
> ....
> Probing for Winbond W39V040FB, 512 kB: probe_jedec_common: id1 0x25,
> id2 0x6b, id1 is normal flash content, id2 is normal flash content
> No EEPROM/flash device found
> ...
> 
> 
> NetBSD 5.1 with same flashrom version working just well, I was able to
> read the chip contents and write them back without any issues. This is
> not a blocker, as I would stick to the external programmer anyway, but
> probably worth investigating as a regression - monolithic nature of
> NetBSD releases and very limited board performance would not allow to
> bisect this easily, so it`s better to narrow a debug field, if
> possible, in advance.

Hi Andrey,

please post complete logs of a working and non-working probe as well as
the exact flashrom version you are using. The output of lspci -nnv
might become handy as well.

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner