[U-Boot] [RFC][DFU] Unification of dfu_alt_info alt settings description + command execution

[Lukasz Majewski <l.majewski@majess.pl>]

On Thu, 18 Jul 2013 13:30:55 -0400
Michael Cashwell <mboards@prograde.net> wrote:

> On Jul 18, 2013, at 12:39 PM, Tom Rini <trini@ti.com> wrote:
> 
> > uImage     | raw  | nand   | 0       | "kernel" | "-"  | "-"   |
> > "-"   |
> > 
> > Since partitions provide start/size.
> 
> I've got some WIP that pulls the alt info from a GPT partition map on
> mmc. 

Extraction the part of dfu_alt_info from GPT or $partitions env variable
(as defined at e.g. Trats) is also a good idea.

The best solution would be to produce alt settings information as a mix
of GPT layout information (extraction of part num, start offset,
size... any more?) [*] and some predefined dfu_alt_info env variable. In
this way we can reuse already available code (since GPT layout is
already in place for most of targets).

But what about mtd parts (Nand/ UBI)? It shall be also doable to
extract information [*] from it. Am I correct?

> That alt settings in DFU can be strings or numbers was handy to
> allow the name to identify the partition.
> 
> -Mike
> 
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