[U-Boot] [PATCH] ARMV7: OMAP4: Calculate SDRAM size

[Wolfgang Denk]

Dear Nishanth Menon,

In message <4C9F3E4F.3040403 at gmail.com> you wrote:
>
> > I think you are referring to SDRAM initialization. Yes, it is assumed
> > that SDRAM initialization(at least the DMM part of it) is done before
> > the call to sdram_size(). The right location for this seems
> > to be the initial part of sdram_init().
> 
> thanks for the clarification.. NOR boot is usually going to have initial 
> part in XIP -> we'd traditionally relocate to SDRAM before the call to 
> sdram_size() happens.

Yes, this was the way how many ARM boards id, and this is what I'm
trying to explain: this is WRONG.

SDRAM configuration must be done while still running from NOR, i. e.
before relocation. Only then free reconfiguration, auto-sizing etc. is
possible.

Best regards,

Wolfgang Denk

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