Re: *** PROBABLY SPAM *** [PATCH 06/12] reimplement uImage code

[Sascha Hauer <s.hauer@pengutronix.de>]

On Thu, Dec 15, 2011 at 02:33:17PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 11:30 Thu 15 Dec     , Sascha Hauer wrote:
> > Provide a new API for accessing uImages which makes it easy
> > for commands to open images, verify them, load to (free) sdram
> > regions and show information about uImages.
> > 
> > - We now do not load the image to malloced space anymore.
> > - The data in the header is now stored in cpu native endianess
> >   after uimage_open which makes it easy to access the header data.
> > - uImage can be loaded to dynamically allocated sdram regions.
> > 
> > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> I was more think of a filesystem
> 
> so we can execute an embedded script

You can still do with "uimage -e script myimage; ./script"

I thought about the filesystem approach and I came to the conclusion
that this is not really what we want for booting. While it definitely
has charm when we can mount a uImage and just work on the included file
we would loose the meta data in this case. We could create the metadata
in form of files, maybe like this:

# mount uImage uimage /mnt
# ls /mnt
/mnt/image0
/mnt/image1
/mnt/entrypoint
/mnt/loadaddress

But these files would be hard to work on and also would not have
the 'uImage is just another image handled by bootm' facility.

Sascha

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