[coreboot] flashrom issues found??

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Fri Mar 14 15:48:33 CET 2008


On 14.03.2008 15:34, joe at smittys.pointclark.net wrote:
> Quoting Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>:
>
>> On 14.03.2008 01:21, joe at smittys.pointclark.net wrote:
>>> I han't had a chance to test it yet but I think if I just modify
>>> flashchips.c to say this it may work:
>>>
>>> {"M50FW080", ST_ID, ST_M50FW080, 1024, 64 * 1024, probe_jedec,
>>> erase_lhf00l04, write_lhf00l04},
>>>
>>> I will test it and report back, with a patch hopefully?
>>
>> That would be cool. However, considering Ron's comments, could you use
>> erase_82802ab,  write_82802ab instead? They are available again in
>> latest flashrom and are functionally identical to the *_lhf00l04
>> functions.
>>
> Ahhhhhh:-( Here is what is happening with the above change:
>
> [root at localhost ~]# flashrom -r test.rom
> Calibrating delay loop... OK.
> Found coreboot table at 0x00000530.
> Vendor ID: RCA, part ID: RM4100
> Found chipset "Intel ICH4/ICH4-L", enabling flash write... OK.
> NOT FOUND RCA:RM4100
> M50FW080 found at physical address 0xfff00000.
> Flash part is M50FW080 (1024 KB).
> Reading Flash...done
> [root at localhost ~]# flashrom -E
> Calibrating delay loop... OK.
> Found coreboot table at 0x00000530.
> Vendor ID: RCA, part ID: RM4100
> Found chipset "Intel ICH4/ICH4-L", enabling flash write... OK.
> NOT FOUND RCA:RM4100
> M50FW080 found at physical address 0xfff00000.
> Flash part is M50FW080 (1024 KB).
> Erasing flash chip
> total_size is 1048576; flash->page_size is 65536
> Erase at 0xb7dcc000
> Ready:BE RUN/FINISH:BE OK:PROG OK:VPP OK:PROG RUN/FINISH:UNLOCK:write
> protect is at 0x2
> Segmentation fault

Two solutions:
- Replace probe_jedec with probe_lhf00l04 or probe_82802ab. That will
fix the segfault. No idea whether the flash chip will be detected with
that mod.
- Add map_flash_registers(flash); at the beginning of erase_82802ab or
erase_lhf00l04 (the one you were calling).


Regards,
Carl-Daniel

-- 
http://www.hailfinger.org/





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