[flashrom] [PATCH] ICH6+ FWH IDSEL override

[Carl-Daniel Hailfinger]

On 14.08.2009 15:09, Stefan Reinauer wrote:
> On 8/14/09 12:55 AM, Chris Kinney wrote:
>   
>> [root at k2 flashrom]# ./flashrom -p internal=fwh_idsel=0
>> flashrom v0.9.0-r670
>> Vendor ID: KONTRON, part ID: 986LCD-M
>> Found chipset "Intel ICH7/ICH7R", enabling flash write...
>> Setting IDSEL=0 for top 8 MBOK.
>> Disabling flash write protection for board "Kontron 986LCD-M"... OK.
>> Found chip "SST SST49LF016C" (2048 KB, FWH) at physical address
>> 0xffe00000.
>>     
> Why is this needed again? Does the Kontron default to a non-0 IDSEL?
>   

It defaults to nonzero IDSEL for anything below the top 1 MB (and
associated register space).

> I never had problems flashing on the Kontron without any such option..
>   

You will only hit this problem if you're using a FWH chip and if that
chip is bigger than 1 MByte.
SPI chips (all sizes) and FWH chips up to 1 MByte are not affected.

Regards,
Carl-Daniel

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