Questions on LinuxBIOS and OpenFirmware
wmb at laptop.org
Fri Aug 24 14:05:03 EDT 2007
Ivan Krstić wrote:
> On Aug 24, 2007, at 7:25 AM, Kein Yuan wrote:
>> So in short words, OLPC is using LinuxBIOS to do low level HW init,
>> then transfer control to OFW, which also acting as boot loader to
>> load Linux OS, right?
Sorry, not correct.
LinuxBIOS is not present at all. The low-level init is now done with a
few lines of assembly language code and a big table of register values.
Removing LinuxBIOS was what made it possible for me to get the startup
time down to a couple of seconds, and to do the firmware part of resume
in a few milliseconds.
More information about the Devel