RES: [U-Boot-Users] m5282evb

[NZG]

It's not obvious from the documentation, but u-boot does not properly 
initialize the m5282.

Specifically, you will to modify u-boot, or use a pre-loader(such as colilo) 
to boot - u-boot.

This is because 
1. The u-boot cpu directory for th 52x2 does not contain a complete 
initialization for the cpu.
2. The board directory does not contain proper initialization for the 
board(DRAM).
3. There is a problem with the way u-boot shadows things that crashes it when 
it tries to boot directly from flash.
4. There is apparently some licensing issue with Kuhn's old pre-loader or 
something like that.


That being said, I am working on a version that does not require a pre-loader.
So is Zachary Landau, although we are working in slightly different directions

I am trying to get support for my board into u-boot quickly, and am trying to 
use the existing method, just booting everything from a different RAM 
location than 0. My method currently only supports our new board, the 
SoM-5282

I believe Zach is working on getting u-boot to run from internal flash, and is 
focusing more on the uCDimm.
(forgive me if I'm speaking out of turn Zach)

I can send you what I have so far so long as you promise to play nice with the 
GPL (it boots), but I'm not sure about it's stability yet. (mtest crashes I 
don't think I have my boundaries set up to prevent it from overwriting the 
bootloader yet)


good luck,
NZG.

 

On Wednesday 16 March 2005 14:35, Gabriel Pundrich wrote:
> Nice!
> My question is about the first power on of u-boot:
> - I can compile the u-boot and I generate the u-boot.bin and put it on the
> flash at the address 0xffe00000. When I reset the board I can´t get any
> signal of the terminal. What should I do?
>
> Tnx!
> Gabriel Pundrich
>
> -----Mensagem original-----
> De: NZG [mailto:ngustavson at emacinc.com]
> Enviada: qua 16/3/2005 17:05
> Para: u-boot-users at lists.sourceforge.net
> Cc:
> Assunto: Re: [U-Boot-Users] m5282evb
> I'm working with a m5282evb based board, as are several others that I know
> of besides just Stuart, whats your question?
>
> NZG.
>
> On Wednesday 16 March 2005 13:44, Gabriel Pundrich wrote:
> > Hi,
> > I am new at the list and I would like to talk with Stuart Wood because I
> > saw his messages talking about M5282EVB boot and I think we would can
> > help me. Stuart stills on this list? Anybody has his e-mail please?
> > Anybody else ever had experience with this board?
> >
> > Thanks,
> > Gabriel.
> >
> >
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