LinuxBIOS in 512KB flash

Ronald G Minnich rminnich at
Tue Oct 8 20:03:01 CEST 2002

On Tue, 8 Oct 2002, Hieu T. Tran wrote:

> We're working to port LinuxBIOS to a via 133 platform
> with a 512KB boot flash.  We believe that the flash is
> wired such that on reset, 0xFFFF0 is mapped to 0x7FFF0
> on the flash, which is slightly below 512KB on the flash.

I am missing the problem. That's what should happen, right? So that
physical ffff0 maps to 7fff0 on the flash, and the 8086 reset vector is
visible to the processor at 0xf000:fff0, and the correct instructions are

I don't think there is a problem here.


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