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

[Wolfgang Denk]

Dear =?ISO-8859-1?Q?Eric_B=E9nard?=,

In message <4A5F20DB.2000009 at eukrea.com> you wrote:
> 
> > How about using get_ram_size() for auto-sizing and testing?
> > 
> the RAM needs to be properly initialized in low level before being able 
> to test it so its geometry (rom/columns) and timings must be known 
> before being able to detect its size using get_ram_size.

Indeed. That's the same on all board - including the many that
successfully use get_ram_size()

> I'm not sure it's possible to use a generic geometry/timings there else 
> u-boot may never relocate.
> How would you do this ?

Well, normally you have 2 or 3 row/col combinations that have to be
considered; you try these in turn until you find one where
get_ram_size() returns a non-zero size; if several work, you use that
which returns the biggest size.

See for example "board/tqc/tqm8xx/tqm8xx.c" - it tries 8, 9 and 10
column mode...

Best regards,

Wolfgang Denk

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