[coreboot] [Coreboot] About (re)flash BIOS utility

yu chyuan fu fuh0826 at gmail.com
Thu Mar 13 04:25:32 CET 2014


Hi Idwer & peter

Yes,i already have compile crossgcc utility before 'make menuconfig'.
Like Idwer said , The output debug code "0x02" not found from coreboot
source code.
So i don't have debug direction .
My mainboard is company customization by sandybridge platform and flash
chip is Winbond W25Q64V 8M
Hardware spec please see attached file.

So should i need to try use flashrom utility or still use vendors provide
flash utility ??


Thanks for your reply and help!!


2014-03-12 19:40 GMT+08:00 Idwer Vollering <vidwer at gmail.com>:

>
>
>
> 2014-03-12 11:23 GMT+01:00 yu chyuan fu <fuh0826 at gmail.com>:
>
> Hi All
>>
>> I am a novice with coreboot. I successfully build coreboot.rom follow
>> www.coreboot.org.
>> Now i want to burn it to flash chips. I tried using the vendors provide
>> flash utility write to flash chips, it's can write success.
>>
>
> The vendor BIOS bootblock was likely left intact/untouched.
>
>
>> I plug in 0x80 debug card to mainboard then power on, coreboot stop
>> working and debug card output code is 0x02.
>>
>
> My guess is that the vendor BIOS' bootblock shows that particular code.
> The files behind these links do not include POST code 0x02:
> http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=documentation/POSTCODES;h=85ad4d76f954eba88d4890432347eb0b1d7b7b51;hb=HEAD
> and
> http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/include/console/post_codes.h;h=0310db3958146d2c78893b692799d57f62cf5eb7;hb=HEAD
>
> Did you compile crossgcc right before 'make menuconfig'?
>
>
>> I suspect vendors provide flash utility maybe not support coreboot when i
>> reference FAQ<http://www.coreboot.org/FAQ#How_do_I_.28re-.29flash_the_BIOS.3F> page
>> describe how to flash the BIOS.
>> The FAQ page suggest use the universal flash utility called flashrom.So,
>> if i don't use flashrom utility write to flash chips , even my
>> coreboot.rom is good,it always can't work?
>>
>> Thanks!!
>>
>>
>> --
>> coreboot mailing list: coreboot at coreboot.org
>> http://www.coreboot.org/mailman/listinfo/coreboot
>>
>
>
> --
> coreboot mailing list: coreboot at coreboot.org
> http://www.coreboot.org/mailman/listinfo/coreboot
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