u-boot.git/dts/Makefile, branch v2026.01

doc: Update mentions of README.fdt-control

2025-09-27T07:20:22Z

Update documents 'README.fdt-control' reference to replacement 'control.rst': doc/arch/nios2.rst dts/Makefile Also convert some adjacent pathname mentions to rST links where applicable Fixes: 3e9fddfc4f14 "doc: Move devicetree control doc to rST" Signed-off-by: E Shattow

dts: Add ability to build fallback DTBOs from arch/$(ARCH)/dts

2024-10-18T12:41:09Z

Currently the enablement of OF_UPSTREAM results on the build system searching for DTs only in dts/upstream/ . There are platforms which use U-Boot specific DTBOs applied on top of U-Boot control DT during SPL stage, and source DTs for these are located in arch/$(ARCH)/dtb. Add dedicated 'dtbos' target which builds only .dtbos and not .dtbs and in case CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS is enabled, build this target for arch/$(ARCH)/dtb to generate local U-Boot specific DTBOs. Adjust top level Makefile so binman would search for .dtb and .dtbo in both OF_UPSTREAM specific paths and arch/$(ARCH)/dtb for the .dtbo case in case CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS is enabled. Reviewed-by: Sumit Garg Signed-off-by: Marek Vasut

global: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD

2024-10-11T17:44:48Z

Complete this rename for all directories outside arch/ board/ drivers/ and include/ Use the new symbol to refer to any 'SPL' build, including TPL and VPL Signed-off-by: Simon Glass

dts: Add alternative location for upstream DTB builds

2024-03-01T03:24:05Z

Allow platform owners to mirror devicetree files from devitree-rebasing directory into dts/upstream/src/$(ARCH) (special case for arm64). Then build then along with any *-u-boot.dtsi file present in arch/$(ARCH)/dts directory. Also add a new Makefile for arm64. This will help easy migration for platforms which currently are compliant with upstream Linux kernel devicetree files. Signed-off-by: Sumit Garg

Kbuild: Fix cleanup of *.dtb for some archs

2023-07-07T20:25:56Z

'make clean' did not descend into arch/$ARCH/dts for arc, m68k, nios2, sh, xtensa. Fix it by adding the missing archs to the explicit clean-dirs list. Signed-off-by: Tobias Deiminger

dts: Log name of expected .dtb file

2021-01-16T19:49:09Z

Make it more obvious what .dts file was expected by the build system. When adding support for a new board, I kept getting this error message, assuming I passed a wrong DEVICE_TREE parameter. However, what was really the mistake was that the entry in `arch/arm/dts/Makefile` was missing, and u-boot didn't like not being able to find the .dtb file that should have been produced. Simply logging the expected .dtb file name should make it easier to spot such mistakes. Signed-off-by: Florian Klink

Makefile: Tidy up SPL dtb production

2021-01-05T19:24:40Z

Use the SPL_NAME variable to simplify the rules. Drop the SPL targets clean-files since the SPL and TPL dts/ directories are removed by existing rules. Move the SPL rules into a new spl_dtbs to avoid the complicated $(if) construct. Also drop unused pieces from the 'targets' variable. With this, SPL and TPL have separate dtbs which respect the various u-boot,dm-spl / u-boot,dm-tpl tags. Signed-off-by: Simon Glass

Makefile: Build SPL dtbs in the spl/ directory

2021-01-05T19:24:40Z

Rather than putting these in the top-level dts/ directory (which is intended for U-Boot proper), put them in the correct subdirectory for SPL (either spl/ or tpl/). This is where other SPL targets are kept, so this is more consistent. Signed-off-by: Simon Glass

Makefile: Build a separate .dtb for TPL

2021-01-05T19:24:40Z

At present both SPL and TPL use the same devicetree binary. While there is logic to run fdtgrep separately on each one, it does not actually happen. Add a new TPL rule and use that instead. Make this rule conditional on there actually being a TPL. Do the same for SPL for consistency. Note that the SPL and TPL dtbs are build by a Makefule rule used for U-Boot proper. This is the 'dtbs' target in dts/Makefile. So the check for CONFIG_TPL_BUILD in cmd_fdtgrep never actually works at present. We don't support CONFIG_OF_EMBED for TPL at present. Signed-off-by: Simon Glass

dts: add property removal option CONFIG_OF_REMOVE_PROPS

2020-01-28T00:54:20Z

This can be used for device tree size reduction similar as CONFIG_OF_SPL_REMOVE_PROPS option. Some boards must pass the built-in DTB unchanged to the kernel, thus we may not cut it down unconditionally. Therefore enable the property removal list option only if CONFIG_OF_DTB_PROPS_REMOVE is selected. Signed-off-by: Anatolij Gustschin