[OLPC-devel] SST 49LF008A

[Chris Ball]

Stephen,

   > Do you have to install this socketed part on the development board
   > to install the linuxbios ...  It's unclear to me whether you have
   > to do this or can overwrite the Insyde Bios in the flash rom which
   > must already be soldered on the motherboard.

You can do either, but we're still working out the correct procedure and
software for overwriting the main flash, so don't try that just yet.

   > If the later is correct what is the purpose of the socketed flash
   > rom?

If you write a broken image to the main (SPI) flash, your board is
useless.  If you write one to the PLCC, you can return to the Insyde
BIOS by removing the PLCC.  Having the PLCC allows us to test ROM
images reversibly, and without losing the Insyde BIOS permanently.

There are several wiki pages:

http://wiki.laptop.org/go/Building_LinuxBIOS
http://wiki.laptop.org/go/Flashing_LinuxBIOS
http://wiki.laptop.org/go/Upgrading_to_LinuxBIOS

- Chris.
-- 
Chris Ball   <cjb at mrao.cam.ac.uk>    <http://blog.printf.net/>