diff options
| author | Marek Vasut <marex@denx.de> | 2024-10-17 03:08:40 +0200 |
|---|---|---|
| committer | Fabio Estevam <festevam@gmail.com> | 2024-10-18 09:41:09 -0300 |
| commit | a55c4836f3ac6a35d5eba789071fb27d2343371c (patch) | |
| tree | 83ac7dfa60de12e5d33702a8f680aa0e2b172382 | |
| parent | 608a31bdec6284ad6f821226e4c62c9cd3052874 (diff) | |
dts: Add ability to build fallback DTBOs from arch/$(ARCH)/dts
Currently the enablement of OF_UPSTREAM results on the build system
searching for DTs only in dts/upstream/ . There are platforms which
use U-Boot specific DTBOs applied on top of U-Boot control DT during
SPL stage, and source DTs for these are located in arch/$(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>
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | dts/Kconfig | 16 | ||||
| -rw-r--r-- | dts/Makefile | 14 | ||||
| -rw-r--r-- | scripts/Makefile.dts | 6 |
4 files changed, 39 insertions, 1 deletions
@@ -1383,7 +1383,11 @@ of_list := "$(ext_dtb_list)" of_list_dirs := $(dir $(EXT_DTB)) else of_list := $(CONFIG_OF_LIST) +ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),) +of_list_dirs := $(dt_dir) arch/$(ARCH)/dts +else of_list_dirs := $(dt_dir) +endif default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) endif diff --git a/dts/Kconfig b/dts/Kconfig index 569d4be338e..385058b429f 100644 --- a/dts/Kconfig +++ b/dts/Kconfig @@ -125,6 +125,22 @@ config OF_UPSTREAM_VENDOR help Select the vendor to build all devicetree files for. +config OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS + bool "Build local DTBOs as fallback for DTBOs missing upstream" + default n + depends on OF_UPSTREAM + help + Enable building DTBOs from arch/$(ARCH)/dts as a fallback for + DTBOs which are not part of Linux kernel upstream yet. This is + a stopgap measure to expedite OF_UPSTREAM switch for platforms + which already have main DT in Linux kernel upstream, but still + have leftover DTBOs in U-Boot tree. + + Do not use this option, upstream your DTs and DTBOs instead. + If the upstreaming is in progress, use with utmost caution. + + If unsure, say N. + choice prompt "Provider of DTB for DT control" depends on OF_CONTROL diff --git a/dts/Makefile b/dts/Makefile index 62a65688cf5..86bf8dc2156 100644 --- a/dts/Makefile +++ b/dts/Makefile @@ -20,6 +20,12 @@ else dt_dir := arch/$(ARCH)/dts endif +ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),) +local_dtbos := local-dtbos +else +local_dtbos := +endif + ifneq ($(EXT_DTB),) DTB := $(EXT_DTB) else @@ -40,7 +46,7 @@ endif targets += dt.dtb -$(DTB): arch-dtbs +$(DTB): arch-dtbs $(local_dtbos) $(Q)test -e $@ || ( \ echo >&2; \ echo >&2 "Device Tree Source ($@) is not correctly specified."; \ @@ -53,6 +59,12 @@ PHONY += arch-dtbs arch-dtbs: $(Q)$(MAKE) $(build)=$(dt_dir) dtbs +ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),) +PHONY += local-dtbos +local-dtbos: + $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbos +endif + ifeq ($(CONFIG_XPL_BUILD),y) obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o # support "out-of-tree" build for dtb-spl diff --git a/scripts/Makefile.dts b/scripts/Makefile.dts index 1fe142f2bbf..3ab67b3c247 100644 --- a/scripts/Makefile.dts +++ b/scripts/Makefile.dts @@ -21,4 +21,10 @@ PHONY += dtbs dtbs: $(addprefix $(obj)/, $(dtb-y)) @: +ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),) +PHONY += dtbos +dtbos: $(addprefix $(obj)/, $(filter-out %.dtb,$(dtb-y))) + @: +endif + clean-files := *.dtb *.dtbo */*.dtb */*.dtbo *_HS |