[LinuxBIOS] M57SLI Rev2.0 SPI - how to add the second bios chip (incl. pictures)

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Fri Oct 19 22:06:07 CEST 2007


On 18.10.2007 22:58, Carl-Daniel Hailfinger wrote:
> On 18.10.2007 17:13, Harald Gutmann wrote:
>   
>> Am Donnerstag, 18. Oktober 2007 17:05:30 schrieb Ward Vandewege:
>>   
>>     
>>> On Thu, Oct 18, 2007 at 04:59:36PM +0200, Harald Gutmann wrote:
>>>     
>>>       
>>>> Am Donnerstag, 18. Oktober 2007 01:10:03 schrieb Peter Stuge:
>>>>       
>>>>         
>>>>> On Wed, Oct 17, 2007 at 08:47:41PM +0100, Chris Lingard wrote:
>>>>>         
>>>>>           
>>>>>>> I'll get in touch with the distributors here. Will get back when
>>>>>>> I know more.
>>>>>>>             
>>>>>>>               
>>>>>> I have been trying to get my M57SLI Rev2.0 SPI running LinuxBios
>>>>>> for a while, but could not get the chip
>>>>>>           
>>>>>>             
>>>>> Sorry, no news from me yet, I hardly have time to check my email this
>>>>> week.
>>>>>
>>>>>         
>>>>>           
>>>>>> I have been offered a batch of SST25LF040A brand new unprogrammed
>>>>>> for US $3 each. If this a good price and a way to go?
>>>>>>           
>>>>>>             
>>>>> Fairly good price, depending on how many a batch is? 30-or so pieces
>>>>> could go for $3, but you probably want to look for 25LF080A instead
>>>>> then to get more room. Maybe there's a 16Mbit version too.
>>>>>         
>>>>>           
>>>> the chips go up to 32mbit with 50mhz to 75/85mhz and 8 pins, but i wasn't
>>>> able to find them in europe until now. 64mbit are only available with 16
>>>> pins.
>>>>
>>>> farnell has an sst chip with right pin position, speed (50mhz) and 16mb
>>>> in its store. which cost's about 3€.
>>>>       
>>>>         
>> 16Mbit Chip:
>> SST25VF016B-50-4I-S2AF
>>   
>>     
>
> Do not order a lot of SST chips, they are much more difficult to support
> with the current flashrom architecture. You could order one and check if
> they support the RDID instruction (data sheet is silent about RDID), but
> I have no idea if they do.
>   

I now found a SST data sheet (not easily found on the official web site)
that talks about RDID, so adding support for it should be possible.


Regards,
Carl-Daniel




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