LinuxBIOS in 512KB flash
Eric W Biederman
ebiederman at lnxi.com
Tue Oct 8 20:26:01 CEST 2002
"Hieu T. Tran" <htran at viosoft.com> writes:
> 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.
That sounds correct.
Though I would normally use the mapping at: 0xFFFFFFF0
and not even mess with the legacy stuff.
> We have been trying various config file settings
> (ROMTOP, ROMSIZE, PAYLOAD_SIZE) to position ROMTOP and
> reset_vector accordingly without much success. Simply
> getting a larger flash wont help since the board will
> only recognize the first 512KB. Has anyone solved this
> problem?
What exact problem are you having? When you build romimage
it always places the entry point at the end of the rom.
Eric
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