[U-Boot] [PATCH 1/1] Add support for Eukrea CPU9260 SBC

[Alessandro Rubini <rubini-list@gnudd.com>]

> I've tried something very close to what is done in tqm8xx but I don't 
> manage to get something reliable : either it hangs or I get data abort.
>
> After checking the datasheet, I don't understand how we can change the  
> geometry of this SDRAM controler while running from SDRAM

No, you can't. That part must be done while you run from flash.
Actually, this is done in cpu/arm926ejs/at91/lowlevel_init.S,
in the table SMRDATA1.

So, with the current code base, you can't autodetect ram size on the
atmel 926x.

I have the same problem, as I have boards that ship as either 64M or
128M.  I'd configure for 128M and look for aliases, reconfiguring for
64M if needed.  This can be done in lowlevel_init.S or by setting up a
temporary C environment with sp in static RAM and doing it in C.

In both cases, this doesn't fit the current code base and some
refactoring would be needed to go mainline.

/alessandro