Simon Glass <sjg@chromium.org> says:

This series provides a way to keep track of the images used in bootstd,
including the type of each image.

At present this is sort-of handled by struct bootflow but in quite an
ad-hoc way. The structure has become quite large and is hard to query.
Future work will be able to reduce its size.

Ultimately the 'bootflow info' command may change to also show images as
a list, but that is left for later, as this series is already fairly
long. So for now, just introduce the concept and adjust bootstd to use
it, with a simple command to list the images.

This series includes various alist enhancements, to make use of this new
data structure a little easier.

[trini: Drop patch 18 and 19 for now due to size considerations]

Link: https://lore.kernel.org/r/20241115231926.211999-1-sjg@chromium.org

Export this function so it can be used from other files.

Signed-off-by: Simon Glass <sjg@chromium.org>

Use an alist for this data structure as it is somewhat simpler to
manage. This means that bootstd holds a simple list of bootflow structs
and can drop it at will, without chasing down lists.

Signed-off-by: Simon Glass <sjg@chromium.org>

This list is only used by two functions, which can be updated to iterate
through the global list. Take this approach, which allows the bootdev
list to be dropped.

Overall this makes the code slightly more complicated, but will allow
moving the bootflow list into an alist

Signed-off-by: Simon Glass <sjg@chromium.org>

This relates to more than just the bootdev, since there is a global list
of bootflows. Move the function to the bootstd file and rename it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

This relates to more than just the bootdev, since there is a global list
of bootflows. Move the function to the bootstd file and rename it.

Signed-off-by: Simon Glass <sjg@chromium.org>

The name of the bootdev device is not that important, particular in SPL.
Save a little code space by using a simpler name.

Signed-off-by: Simon Glass <sjg@chromium.org>

This reverts commit 1fdf53ace13f745fe8ad4d2d4e79eed98088d555, reversing
changes made to e5aef1bbf11412eebd4c242b46adff5301353c30.

I had missed that this caused too much size growth on rcar3_salvator-x.

Signed-off-by: Tom Rini <trini@konsulko.com>

The name of the bootdev device is not that important, particular in SPL.
Save a little code space by using a simpler name.

Signed-off-by: Simon Glass <sjg@chromium.org>

When BLK is not enabled but BOOTSTD is, some features of standard boot
become unavailable. Add a check for this in the only site that is
currently apparent.

Signed-off-by: Simon Glass <sjg@chromium.org>