At 12:52 PM 1/29/99 -0600, you wrote:
>.... If there are other people
>on net who want to do BIOSless/Diskless Linux thing, let's
>do it, we can do it in more or less generic way, so PC104
>people will be able to reuse code....
Sounds reasonable.
>At this moment I have real mode init code, switch to protected
>etc, can easily load any image to dram and jump to it.
I think this is the part that I find most intimidating. Those 50 or so AMD
registers are a big ? in my mind. I am sure I can figure it out (my
background is in hardware design) but it would be very helpful if I had an
example of something that someone else already has working. That would at
least be a starting point. Are you in a position to be able to share this
part of your work?
>Missing pieces:
>1. Clean Setup.s, we need to #ifdef all VGA etc stuff from there.
> when I was playing with stuff, I just deleted out code
> that I don't need.
This seems reasonably do-able.
>2. Initial Flash/ROM file system, I saw very reusable code
> in pcmcia drivers source code.
What are you thinking here. I was actually thinking that I could use the
actual PCMCIA port for my bulk storage. Just wanted to use the local flash
for initial creation of a RAMDISK which would be mounted as my root file
system. Is this what you are doing now?
Are you thinking that you would like to use the modified PCMCIA code to
mount the on-board flash as a file system?
>Overall Flash structure is:
>
>0 - ?K - kernel image
>?K - FK - file system image
>FK - - initial_loader
>Aliased 0xFFFFFFFE (look in book for aliasing) - jmp initial_loader
>At 01:00 PM 1/29/99 -0500, Dave wrote:
>>At 11:16 AM 1/29/99 -0600, you wrote:
>> >I have worked with AMD Elan SC400. ... don't
>> >need BIOS to boot it up from flash or PCMCIA ... need to setup
>> >all AMD registers (23h/24h) according to specs,... jump to
>> >stripped out Linux boot (Setup.s). .....
>>
>>I am looking at the same eval board. Would you be willing to share any of
>>the code or work that you have done in this area? It would be very much
>>appreciated...
>>
>>Dave
>>
>>
>>
>
>
