[LinuxBIOS] [PATCH] flashrom: Support EON EN29F002AT, JEDEC continuation IDs

Markus bios at ryven.de
Sun Dec 30 21:09:07 CET 2007


Am Tue, 18 Dec 2007 00:53:37 +0100
schrieb Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>:

> Hi Markus,
> 
> On 24.09.2007 00:38, Carl-Daniel Hailfinger wrote:
> > On 31.08.2007 21:40, Markus Boas wrote:
> >   
> >> I send a patch to add support for the EON EN29F002NT
> >> Write, read works.
> >>     
> >
> > Sorry, but the data sheet says you're only doing half of the
> > identification and this will match all EON chips.
> >   
> 
> Can you test this patch? If identification fails, can you post the
> output of "flashrom --verbose" ? Thanks!

Geode:~# ./flashrom --verbose
Calibrating delay loop... 27M loops per second. OK.
No LinuxBIOS table found.
Found chipset "CS5530/CS5530A", enabling flash write... OK.
Probing for Am29F040B, 512 KB
probe_29f040b: id1 0x25, id2 0x9f
Probing for Am29LV040B, 512 KB
probe_29f040b: id1 0x25, id2 0x9f
Probing for Am29F016D, 2048 KB
probe_29f040b: id1 0x25, id2 0x9f
Probing for AE49F2008, 256 KB
probe_jedec: id1 0x7f1c, id2 0x7f92
Probing for At29C040A, 512 KB
probe_jedec: id1 0x7f1c, id2 0x7f92
Probing for At29C020, 256 KB
probe_jedec: id1 0x7f1c, id2 0x7f92
Probing for At49F002(N), 256 KB
probe_jedec: id1 0x7f1c, id2 0x7f92
Probing for At49F002(N)T, 256 KB
probe_jedec: id1 0x7f1c, id2 0x7f92
Probing for EN29F002AT, 256 KB
probe_jedec: id1 0x7f1c, id2 0x7f92
EN29F002AT found at physical address 0xfffc0000.
Flash part is EN29F002AT (256 KB).
No operations were specified.

The Chip is an EN29F002NT.

read, write and verify don't realy work. But i'm think the chip is
destroyed. If i belief my memory, i was able to write once the chip, no
more afterwards. 

Markus





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