[U-Boot] Passing information from SPL to next stage

[Tom Rini]

On Mon, Jul 25, 2016 at 08:54:27PM +1200, Chris Packham wrote:

> Hi,
> 
> Is there a standard way of passing information discovered by the SPL
> onto the next boot stage?
> 
> I'm guessing for platforms that support the new driver model it's
> possible to add/update information in the device-tree, but what about
> platforms that don't currently use the new driver model.
> 
> I had a quick search of the mailing list and docs but didn't find
> anything obvious. If I've missed something feel free to point me at
> it.

Just how much information is it?  The answer is somewhere between
'save_boot_params' (shove a tiny bit of data in a magic location) and
"switch to driver model, whack the DT prior to kicking off U-Boot",
depending also on size constraints.

-- 
Tom
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