Dear =?ISO-8859-1?Q?Eric_B=E9nard?=,
In message <4a5f20db.2000...@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
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
Lady Nancy Astor:
"Winston, if you were my husband, I'd put poison in your coffee."
Winston Churchill:
"Nancy, if you were my wife, I'd drink it."
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
