[flashrom] Write succes for Tyan Thunder K8WE s2895 with flashrom v0.9.2-r1001 and chip SSTFL49080A

STEMMELIN, FREDERIC (FREDERIC)** CTR ** frederic.stemmelin at alcatel-lucent.com
Wed Sep 15 20:14:04 CEST 2010


Hello,

i received today my 2 new SST chips for the Tyan S2895 mobo with BIOS version 1.06 alreday flashed by BIOSMAN company.
For a quick summary, what is working and what not:

WORKING is chip read, and write with flashrom dumpped image
NOT WORKING is writing from original Tyan BIOS image (Error: Image size doesn't match, 2895V106.wph, ftp://ftp.tyan.com/bios/S2895_v106.zip)

So, what have a done exactly:
- used flashrom v0.9.2-r1001 on Ubuntu to dump my current original bios SSTFL49080A with official 1.06 bios version flashed with propriarity tool provided by Tyan company.
- md5sum of this dump => 4c3cc932a149e8bf496160814d0a9c74
- powered computer down
- replaced original chip with one from BIOSMAN, same SST reference, with bios 1.06 on it (biosman has flashed the chip for me with lastest available bios version 1.06, not myself)
- power on computer with biosman chip inside
- used flashrom to dump biosman version of 1.06
- md5sum of the biosman 1.06 version => 18ede76905b99e4591122c5a3032bb2b
- used flashrom to write original bios from tyan website (files 2895V105.wph or 2895V106.wph)    => FAILED with incorrect size error message
- used flashrom to write dump made with flashrom from original tyan bios chip => SUCCES (see file: flashrom_Vw_SST-49FL080A_TYAN_s2895_K8WE-flashrom_burn_from_original_tyanchip106_dump.txt)
- md5sum after successfull flashing => 4c3cc932a149e8bf496160814d0a9c74

md5sum gives me insurance that dumping flash chip content from first chip and burning to another chip (after computer power down/up to replace chip) is the same, so write function is working pretty

The only thing that it is not working is to flash from tyan bios downloaded version (.wph files), as their siez are bigger.

Bios SIZE: dump with flashrom => 1048576 bytes     ;      original Tyan bios file 2895V106.wph => 1050070 bytes

I have not tried the erase function so far.
Computer seems to work fine so far (Ubuntu gnome), with all bioses version, before and after flashing, bios menu are ok too.

Have a nice evening.

PS: file flashrom_Vw_SST-49FL080A_TYAN_s2895_K8WE-tyan105origtry1.txt is to show you siez error while trying flashing Tyan original wph bios files (version 105, but same for 106). File names wre truncated by Windows webmail :(
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