[coreboot] Phoenix reassembly

[Carl-Daniel Hailfinger]

On 18.07.2008 19:21, Myles Watson wrote:
>> -----Original Message-----
>> From: Carl-Daniel Hailfinger [mailto:c-d.hailfinger.devel.2006 at gmx.net]
>> Sent: Friday, July 18, 2008 10:54 AM
>> To: Myles Watson
>> Cc: 'Coreboot'; 'Ward Vandewege'
>> Subject: Re: [coreboot] Phoenix reassembly
>>
>> On 18.07.2008 18:04, Myles Watson wrote:
>>     
>>> In the s2891 tutorial it shows phnxdeco producing a rom.scr file, which
>>>       
>> the
>>     
>>> readme says will reassemble the BIOS.  The version I downloaded doesn't
>>>       
>> seem
>>     
>>> to produce this file with the -xs or -x options.
>>>
>>> What's the preferred way to get the BIOS out of the .wph file so that
>>> flashrom can use it?
>>>
>>>       
>> IIRC the ROM is at the beginning or the end of the WPH file. Simply
>> compare it with your current ROM, find the matching area, then use dd.
>>     
>
> Since my current ROM is coreboot, that won't work, but I guess I could try
> 1MB sections until I find the right one.
>   

Ah sorry, I overlooked that. The last 16 bytes of the correct image
should look similar to what coreboot has there. Well, not completely,
but the jump instruction at 0xfffffff0 should be there.

Regards,
Carl-Daniel