[OLPC-devel] 2316 revisions

[Tom Sylla]

Richard Smith wrote:
>> For *LinuxBIOS*, I would make sure its reporting of the memory map is
>> proper, instead of fixing it up with the mem= parameter. I would expect
>> the LinuxBIOS map to be much simpler, since it may not have ACPI, and
>> may not even need to reserve the BIOS shadow regions.
> 
> That will depend on how the video chip gets turned on and how you have
> to talk to it.  I'm still coming up to speed on the OLPC hardware but
> am I correct that the VSA inits the video device?  If so then it may
> need the legacy shadows ranges to work correctly since I bet it acts
> like a standard vbios.

There is no video BIOS. The current plan (and the way it is working 
right now) is that the SoftVG VSM does only what setup is needed to 
allow the FB driver to load. No VESA, no VGA, no VGA BIOS.

> Are there schematics up anywhere for reference?

MarkF is the keeper of those, you could ask him. I don't think they are 
posted anywhere for general consumption.