Move the check for this further out, so that base_addr is computed in
Entry.WriteSymbols() rather than at lower levels.

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

These functions get the value of a symbol. The reference to ELF files
is confusing since they are reading the position/size of entries, not
ELF symbols. Rename the functions and adjust the comments also.

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

FIT provides a way to select between different devicetree blobs
depending on the model. This works fine for U-Boot proper and allows SPL
to select the correct blob for the current board at runtime. The boot
sequence (SPL->U-Boot proper) is therefore covered by the existing
feature set.

The first boot phase (typically TPL) cannot use FIT since SoC boot ROMs
don't currently support it. Therefore the TPL image must be specific to
each model it boots on.

To support booting on mulitple models, binman must therefore produce a
separate TPL image for each model, even if the images for the rest of
the phases are identical.

TPL needs to be packaged as an executable binary along with a reduced
devicetree. When multiple models are supported, a reduced devicetree
must be provided for each model.

U-Boot's build system is designed to build a single devicetree for SPL
builds, so does not support this requirement.

Add a new 'alternatives' feature to Binman, allowing it to automatically
subset a devicetree to produce the reduced devicetree for a particular
phase for each supported model. With this it is possible to produce a
separate TPL image for each of the models. The correct one can then be
loaded onto a board, along with the common FIT image(s).

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

At present the contents of an FDT (for each phase) are fixed,
determined by the build and provided to Binman as input files.

Provide a means for entry types to provide their own FDT, so that it can
be processed, if needed.

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

Allow the entry-docs command to operate even if pylibfdt is not present
in the systemn.

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

Without this re-building will fail with an error when trying to create
the symlink for the second time with an already exists error.

Signed-off-by: Andrew Davis <afd@ti.com>
[n-francis@ti.com: Added support for test output dir and testcase]
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>

The patman directory has a number of modules which are used by other tools
in U-Boot. This makes it hard to package the tools using pypi since the
common files must be copied along with the tool that uses them.

To address this, move these files into a new u_boot_pylib library. This
can be packaged separately and listed as a dependency of each tool.

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

At present we show 'main section' as the top-level section name. It may
be more helpful to show the actual image name. This is tricky because
Image is a parent class of Entry_section, so there is no distinction
between an image and a section.

Update it to show the image name.

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

At present only the image (which is a section) has a filename. Move this
implementation to the entry_Section class so that any section can have a
filename. With this, the section data is written to a file.

This allows parts of an image to be written, along with the entire image.

Make a note that this can be used to include the contents of a section in
one image in another (later) image.

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

Adding support to symlink an image packaged using binman.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>