Flash mapped to lower address?

Bari Ari bari at onelabs.com
Fri Dec 26 22:31:01 CET 2003


Devi Priya wrote:

> I like to use either Flash memory or DOC and not both. I want to know if 
> I have my Flash memory or DOC mapped to lower address what modification 
> should I do to the linuxbios coding. like regarding setiing the RAMBASE, 
> ROMBASE...........
> 
The power-up reset address for the Geode is FFFFFFF0h, you can't change 
that.

Your only strapping options are:

(1) Enable either an 8 bit or 16 bit boot ROM access

(2) Enable either a LPC or ISA boot ROM access.

-Bari

> Regards,
> Priya.
> 
> 
>> From: Bari Ari <bari at onelabs.com>
>> To: Devi Priya <ijpriya at hotmail.com>
>> CC: linuxbios at clustermatic.org
>> Subject: Re: Flash mapped to lower address?
>> Date: Fri, 26 Dec 2003 20:45:41 -0600
>>
>>
>>
>> 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?
>>
>>
>> Are you using NAND Flash or DOC or both ? Are you trying to boot from 
>> the DOC?
>>
>> You may also want to look at the
>>
>> Geode™ IA on a Chip Devices: Booting from the M-Systems DiskOnChip 
>> Millennium Application Note
>>
>> http://www.m-sys.com/files/documentation/doc/App_Note_047_Des_DOC_FD_Boot_Rev1.0.pdf 
>>
>>
>> http://www.m-sys.com/files/documentation/doc/App_Note_031_PC_Rev_2.2.pdf
>>
>> -Bari
>>
>>
>>
>> _______________________________________________
>> Linuxbios mailing list
>> Linuxbios at clustermatic.org
>> http://www.clustermatic.org/mailman/listinfo/linuxbios
> 
> 
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