On Wed, Jul 23, 2014 at 9:59 AM, Henrik Nordström
<henrik.nordst...@orsoc.se> wrote:
> ons 2014-07-23 klockan 09:27 -0400 skrev jonsm...@gmail.com:
>
>> That new uboot DRAM support from Siarhei has the potential to boot on
>> any Allwinner device.  Once that hits we could do to a single generic
>> entry for Allwinner. Then after uboot is out of SPL uboot could use a
>> DTB to set everything else up optimally.
>
> You still need  SPL tuning for optimal DRAM parameters. Not wise to mess
> with DRAM controller while you are running from DRAM as it's quite
> disruptive both blocking access and may even distort content.
>
> The generic parameters are however sufficiently good to allow booting
> and discovery of the device and it's "optimal" HW parameters to some
> extent. I.e. for use in installers, "safe fallback" etc.

The uboot could re-SPL after patching in the optimal DRAM parameteres.


>
> Regards
> Henrik
>
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-- 
Jon Smirl
jonsm...@gmail.com

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