Flash mapped to lower address?
Bari Ari
bari at onelabs.com
Thu Dec 25 19:39:01 CET 2003
Devi Priya wrote:
> If i have my Flash memory mapped to the lower address (0x0000-0x3FFFFF),
> then what modification should be made to linux bios?
>
If you have you Flash mapped to 0x0000 - 0x3FFFF then you can't use your
Flash as a Boot Device since the "SCx200 Core Logic module positively
decodes memory addresses 000F0000h-000FFFFFh (64 KB) and
FFFC0000h-FFFFFFFFh (256 KB) at reset".
Why don't you just get the application note "AMD Geode™ SC1200/SC2200/
SC3200 Processors: External NAND Flash Memory Circuit" and the Geode
data sheet from AMD? They explain how all this works.
-Bari
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