[coreboot] Change to use CBFS - Help needed

Patrick Georgi patrick at georgi-clan.de
Tue Aug 18 14:34:18 CEST 2009

Am 18.08.2009 13:26, schrieb Harrison, Jon (SELEX GALILEO, UK):
> I really don't have the time or inclination to get into a protracted
> re-structuring of the code right now, after all the effort it's taken to
> get to this point. I'm looking for the quick hack option that'll get me
> up and running again. If I knew how to locate and find the binary data
> in flash then I could more or less preserve my current infrastructure
> and worry about making it more coreboot friendly later.
Sure, working code is always better than non-working code :-)
You can explicitely copy an optionrom to RAM using 
cbfs_load_optionrom(vendor, device, destination address);
Choose some unused vid/did pair (vendor 0xffff should be a safe choice), 
add the files using the pci_rom statement in Config.lb, and use that 
function to load the images to where you want them.

If you need the ROM address of a cbfs file, cbfs_find(filename) is 
useful, but you'll have to skip over the file's header. Something like:
cbfs_file *f = cbfs_find(filename);
uchar *romaddr = (char*)f+(f->offset);
should do the trick.

Hope this helps,

More information about the coreboot mailing list