u-boot.git/dts/Makefile, branch next Unnamed repository; edit this file 'description' to name the repository. arm: Add ARMv8-M aarch32 support 2026-04-13T23:34:02+00:00 Marek Vasut marek.vasut+renesas@mailbox.org 2026-03-29T23:14:12+00:00 b0d731d9563cd6fb8bd6c8304065e550d97a22c7 Add configuration for ARMv8-M aarch32 core, which are currently Cortex-M23/M33 cores. These cores are treated similar to ARMv7-M cores, except the code has to be compiled with matching compiler -march=armv8-m.main flag . These cores have no MMU, they have MPU, which is currently not configured. Unlike ARMv7-M, these cores have 512 interrupt vectors. While the SYS_ARM_ARCH should be set to 8, it is set to 7 because all of the initialization code is built from arch/arm/cpu/armv7m and not armv8. Furthermore, CONFIG_ARM64 must be disabled, although DTs for devices using these cores do come from arch/arm64/boot/dts. To avoid excess duplication in Makefiles, introduce one new Kconfig symbol, CPU_V7M_V8M. The CPU_V7M_V8M cover both ARMv7-M and ARMv8-M cores. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Udit Kumar <u-kumar1@ti.com> 
Add configuration for ARMv8-M aarch32 core, which are currently
Cortex-M23/M33 cores. These cores are treated similar to ARMv7-M
cores, except the code has to be compiled with matching compiler
-march=armv8-m.main flag . These cores have no MMU, they have MPU,
which is currently not configured.

Unlike ARMv7-M, these cores have 512 interrupt vectors. While the
SYS_ARM_ARCH should be set to 8, it is set to 7 because all of the
initialization code is built from arch/arm/cpu/armv7m and not armv8.
Furthermore, CONFIG_ARM64 must be disabled, although DTs for devices
using these cores do come from arch/arm64/boot/dts.

To avoid excess duplication in Makefiles, introduce one new Kconfig
symbol, CPU_V7M_V8M. The CPU_V7M_V8M cover both ARMv7-M and ARMv8-M
cores.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Acked-by: Udit Kumar <u-kumar1@ti.com>
kbuild: Bump the build system to 6.1 2026-01-02T16:28:14+00:00 Sughosh Ganu sughosh.ganu@linaro.org 2025-12-16T09:16:24+00:00 bd3f9ee679b4d1456d0d3c261ab76788950e6096 Our last sync with the kernel was 5.1. We are so out of sync now, that tracking the patches and backporting them one by one makes little sense and it's going to take ages. This is an attempt to sync up Makefiles to 6.1. Unfortunately due to sheer amount of patches this is not easy to review, but that's what we decided during a community call for the bump to 5.1, so we are following the same guidelines here. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>a #rebased on -next 
Our last sync with the kernel was 5.1.

We are so out of sync now, that tracking the patches and backporting
them one by one makes little sense and it's going to take ages.

This is an attempt to sync up Makefiles to 6.1.
Unfortunately due to sheer amount of patches this is not easy to review,
but that's what we decided during a community call for the bump to 5.1,
so we are following the same guidelines here.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>a #rebased on -next
doc: Update mentions of README.fdt-control 2025-09-27T07:20:22+00:00 E Shattow e@freeshell.de 2025-09-23T22:30:50+00:00 c9aad6dbd97b44fccaf761a1f07932ae567d76b7 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 <e@freeshell.de> 
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 <e@freeshell.de>
dts: Add ability to build fallback DTBOs from arch/$(ARCH)/dts 2024-10-18T12:41:09+00:00 Marek Vasut marex@denx.de 2024-10-17T01:08:40+00:00 a55c4836f3ac6a35d5eba789071fb27d2343371c Currently the enablement of OF_UPSTREAM results on the build system searching for DTs only in dts/upstream/ . There are platforms which use U-Boot specific DTBOs applied on top of U-Boot control DT during SPL stage, and source DTs for these are located in arch/$(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 <sumit.garg@linaro.org> Signed-off-by: Marek Vasut <marex@denx.de> 
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 <sumit.garg@linaro.org>
Signed-off-by: Marek Vasut <marex@denx.de>
global: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD 2024-10-11T17:44:48+00:00 Simon Glass sjg@chromium.org 2024-09-30T01:49:50+00:00 1d6132e2a2b1217567b88ddd6d11662afd4001df 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 <sjg@chromium.org> 
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 <sjg@chromium.org>
dts: Add alternative location for upstream DTB builds 2024-03-01T03:24:05+00:00 Sumit Garg sumit.garg@linaro.org 2024-02-22T09:36:01+00:00 e3a9829c87422417986432a8007786cd6f6e1c8e 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 <sumit.garg@linaro.org> 
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 <sumit.garg@linaro.org>
Kbuild: Fix cleanup of *.dtb for some archs 2023-07-07T20:25:56+00:00 Tobias Deiminger tdmg@linutronix.de 2023-06-19T22:41:05+00:00 3d3eeae9bf61f472cea2e16fdce8615312f84ac8 'make clean' did not descend into arch/$ARCH/dts for arc, m68k, nios2, sh, xtensa. Fix it by adding the missing archs to the explicit clean-dirs list. Signed-off-by: Tobias Deiminger <tdmg@linutronix.de> 
'make clean' did not descend into arch/$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 <tdmg@linutronix.de>
dts: Log name of expected .dtb file 2021-01-16T19:49:09+00:00 Florian Klink flokli@flokli.de 2020-12-27T20:34:43+00:00 1d55eb1544f7fcbbc8b39d6f445ba74788bf94bf 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 <flokli@flokli.de> 
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 <flokli@flokli.de>
Makefile: Tidy up SPL dtb production 2021-01-05T19:24:40+00:00 Simon Glass sjg@chromium.org 2020-12-23T02:30:15+00:00 c7674fcb0748a9a15853be7728c3ae887feb75c8 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 <sjg@chromium.org> 
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 <sjg@chromium.org>
Makefile: Build SPL dtbs in the spl/ directory 2021-01-05T19:24:40+00:00 Simon Glass sjg@chromium.org 2020-12-23T02:30:14+00:00 de3e372abdb553ff3a79f12830bb90252059f662 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 <sjg@chromium.org> 
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 <sjg@chromium.org>