[U-Boot] [PATCH 3/3] i.MX28: Increase the delay after DRAM init

[Marek Vasut <marex@denx.de>]

Dear Detlev Zundel,

> Hi Marek,
> 
> [...]
> 
> >> Can you please comment on why we are waiting and why we are waiting
> >> exactly this long?  Can we maybe poll the needed time somehow?
> > 
> > We need to wait for the CPU clock to stabilize.
> 
> This would be a worthwhile comment in the code.
> 
> > I think there is a bit for that that we can poll, indeed.
> 
> And _that_ is even better ;)

And I was wrong, there isn't ... I made a dip into the manual and there's 
nothing :/ So this patch will have to do

> 
> > It's in my queue to revise the memory init code eventually actually,
> > because I think I can make it even faster and fix some rough edges
> > that are still there.
> 
> Thanks!
>   Detlev

Best regards,
Marek Vasut