[U-Boot] [PATCH 10/10] ARM: socfpga: arria10: add support for building Arria10

[Pavel Machek <pavel@denx.de>]

Hi!

> > > > So what do I do if I want to boot arria10 from NAND ? UBI and UBIFS
> > > > won't
> > > > fit into 256kiB, so I think using SPL might be the sensible thing
> > > > afterall,
> > > > since you would be able to use arbitrarily-sized U-Boot.
> > > 
> > > I hope Chin Liang can chime here, I know that we have support for
> > > NAND,
> > > but I haven't been part of that task, so I don't know how it's being
> > > done.
> > 
> > Finally my email is back online :)
> > 
> > We do have NAND support but not with UBI and UBIFS.
> 
> I just hope you're not using raw NAND and just hoping it will work.

HERE:

> > For this support, user can use U-Boot to load arbitrarily-sized U-Boot
> > that run on SDRAM.

...

> > One of the nice thing of U-Boot over SPL is the console support and
> > ability to troubleshoot.
> > This is possible with Arria 10 SoC as we have larger OCRAM (256kB vs CV
> > SoC 64kB).
> 
> OK, that's not really the point here -- the point is, if you compile enough
> features into U-Boot, it will be bigger than those 256k. What will you do
> then ?

You'll compile small U-Boot, and use it to load larger U-Boot, as he
said in the mark "HERE" above.

And yes, I guess that makes sense, and yes, we should finally make
loading U-Boot from U-Boot oficially supported, at least on Socfpga.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html