[U-Boot] U-Boot Driver Development on Atmel's sama5d3xek

Michael Trimarchi michael at amarulasolutions.com
Tue Aug 20 09:25:12 CEST 2013


Hi

On Tue, Aug 20, 2013 at 01:46:55PM +0800, Bo Shen wrote:
> Hi Steven,
> 
> On 8/20/2013 12:51, Steven Rosenberg wrote:
> >Hi Bo
> >
> >To clarify we need to run when booting with no human intervention and to
> >be able to use gmac so the questions are mainly for the procedures on
> >how to create a driver under uboot
> 
> I am still not fully get what you mean.
> what you mean 'run when booting with no human intervention and to be
> able to use gmac'? Using it for tftp, nfs, or anything else?
> Which driver do you want to create under uboot? GMAC driver? or
> anything else?
> 

I dont' know if I understand correclty but I think that he wants to use the
driver from a binary that is lunched from uboot. What I don't understand if he wants to run in parallel with
the bootloader.

Michael

> >We would also need to call into the current ethernet drivers as well and
> >I did notice a gmacb driver but the main issue now seems to be how to
> >create a driver in uboot
> 
> Again, Which driver do you want to create under uboot? GMAC driver?
> or anything else?
> 
> >The procedures for creating a driver seems complex and some guidance
> >would be appreciated
> 
> For different driver, you can check different subsystem in uboot for
> more detail information.
> 
> >Thank you for the link to the patch
> >
> >With Best Regards
> >
> >Steven
> 
> Best Regards,
> Bo Shen
> 
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