[coreboot] jarrell_rom_jumper.c ( I think I found it )

Joseph Smith joe at settoplinux.org
Thu May 21 20:44:43 CEST 2009

On Thu, 21 May 2009 20:41:24 +0200, Peter Stuge <peter at stuge.se> wrote:
> Joshua McDowell wrote:
>> Forcing the use of "SST49LF160C" as the prom dumps the bios
>> perfectly every time, even before the use of the newly discovered
>> source code.
> Unfortunately that doesn't mean very much.
> A forced read disregards everything needed for writing or erasing a
> chip and only tries desperately to read the contents. It's only some
> minimal functionality that doesn't help us for write or erase.
> Maybe you can try playing with the rom_jumper source a bit. Try to
> get it where it says that the jumper value is 1-2 instead?
> Maybe there is even a hardware jumper on the board? Can you check?
Sounds like you may have to get out the meter and do some physical

Joseph Smith

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