It is useful to be able to split an image into multiple sections,
each with its own size and position, for cases where a flash device has
read-only and read-write portions.
Add support for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Allow the same binary to appear multiple times in an image by using the
device-tree unit-address feature (u-boot@0, u-boot@1).
Signed-off-by: Simon Glass <sjg@chromium.org>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
The system device-tree compiler may not be new enough to run the tests we
use in U-Boot (e.g. with binman). Allow use of a DTC environment variable
to point to the correct dtc. If not defined, the dtc on the default PATH
is used.
Signed-off-by: Simon Glass <sjg@chromium.org>
There is a debugging option in the Makefile to allow people to figure out
which u-boot.dtsi files are used in the build. But is it not easy to use
since it only shows files it finds, not those it is looking for. Update it
and update the mention of it to the docs.
Signed-off-by: Simon Glass <sjg@chromium.org>
For boards that need U-Boot-specific additions to the device tree, it is
a minor annoyance to have to add these each time the tree is synced with
upstream.
Add a means to include a file (e.g. u-boot.dtsi) automatically into the .dts
file before it is compiled.
The file uses is the first one that exists in this list:
arch/<arch>/dts/<board.dts>-u-boot.dtsi
arch/<arch>/dts/<soc>-u-boot.dtsi
arch/<arch>/dts/<cpu>-u-boot.dtsi
arch/<arch>/dts/<vendor>-u-boot.dtsi
arch/<arch>/dts/u-boot.dtsi
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
The structure of x86 ROMs is pretty complex. There are various binary blobs
to place in the image. Microcode requires special handling so that it is
available to very early code and can be used without any memory whatsoever.
Add support for the various entry types that are currently needed, along
with some tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This adds the basic code for binman, including command parsing, processing
of entries and generation of images.
So far no entry types are supported. These will be added in future commits
as examples of how to add new types.
See the README for documentation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
