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

[Eric Bénard]

Dear Wolfgang,

Wolfgang Denk a écrit :
>> 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...
> 
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 : each time we 
increase the colum number, the address are modified thus we can't 
execute any more u-boot's code as it's no more where we are expecting it.

Eric