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device-tree: Add makefile to build DTS outside of nvidia-oot

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There are some of the DTS files which are in various
repo under hardware/nvidia/platform.
It is required to build the DTS from this location.

Add makefile support to pickup DTS files from the hardware/nvidia
and build in OOT environment.

Bug 3787936

Change-Id: I91ebe9f9a63849e0d91bbdda41be79ef65b92f03
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2773803
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Laxman Dewangan
2022-09-08 16:40:56 +00:00
committed by mobile promotions
parent d9abb90f16
commit 8d97a59965
1 changed files with 109 additions and 0 deletions
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109
device-tree/platform/Makefile Normal file
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# SPDX-FileCopyrightText: Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: GPL-2.0-only
objtree = $(srctree)
# Redefine the fixdep command
cmd_and_fixdep = \
$(cmd); \
$(objtree)/scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(dot-target).cmd;\
rm -f $(depfile)
include $(oottree)/scripts/Makefile.lib
DTC_CPP_FLAGS += $(EXTRA_CPP_FLAGS)
DTC_CPP_FLAGS += -DLINUX_VERSION=504 -DTEGRA_HOST1X_DT_VERSION=1
tegra-dtstree := $(TOP)/hardware/nvidia
# From out/l4t-t186ref-debug-aarch64/nvidia/kernel-nvidia-oot/nvidia-oot/device-tree/platform
tegra-rel-dtstree := ../../../../../../../hardware/nvidia
DTC_INCLUDE :=
# SOC independent common include
DTC_INCLUDE += $(tegra-dtstree)/soc/tegra/kernel-include
DTC_INCLUDE += $(tegra-dtstree)/platform/tegra/common/kernel-dts
# SOC T23X specific common include
DTC_INCLUDE += $(tegra-dtstree)/soc/t23x/kernel-include
DTC_INCLUDE += $(tegra-dtstree)/soc/t23x/kernel-dts
DTC_INCLUDE += $(tegra-dtstree)/platform/t23x/common/kernel-dts
DTC_INCLUDE += $(tegra-dtstree)/platform/t23x/automotive/kernel-dts/common/linux/
dtb-oot-y :=
dtbo-oot-y :=
DTB_LIST := $(dtb-oot-y)
DTBO_LIST := $(dtbo-oot-y)
dtb-oot-y :=
dts_makefile=$(foreach d,$(wildcard $1*), $(call dts_makefile,$(d)/,$(2)) $(if $(findstring Makefile,$(d)),$(d)))
dts_mfiles = $(call dts_makefile, $(tegra-dtstree)/platform/t23x, Makefile)
ifneq ($(dts_mfiles),)
dts-include :=
include $(dts_mfiles)
dtb-oot-y := $(addprefix $(tegra-rel-dtstree)/,$(dtb-oot-y))
dtbo-oot-y := $(addprefix $(tegra-rel-dtstree)/,$(dtbo-oot-y))
ifneq ($(dts-include),)
DTC_INCLUDE += $(addprefix $(tegra-dtstree)/,$(dts-include))
endif
endif
DTB_LIST += $(dtb-oot-y)
DTBO_LIST += $(dtbo-oot-y)
DTB_NEW_RULE_LIST := $(dtb-oot-y)
DTBO_NEW_RULE_LIST := $(dtbo-oot-y)
# Now save DTB_LIST to dtb-oot-y
dtb-oot-y := $(DTB_LIST)
dtbo-oot-y := $(DTBO_LIST)
# Add path of main Makefile to each dtb/dtbo list
DTB_OBJS := $(addprefix $(obj)/,$(DTB_LIST))
DTBO_OBJS := $(addprefix $(obj)/,$(DTBO_LIST))
###
# remove the ../
replace_ddot = $(subst ../,,$(1))
define _define_dtb_rule
$(obj)/$(call replace_ddot,$(1)): $(src)/$(patsubst %.dtb,%.dts,$(1)) FORCE
endef
$(foreach _dtb, $(DTB_NEW_RULE_LIST), $(eval $(call _define_dtb_rule,$(_dtb))))
DTB_OBJS := $(call replace_ddot,$(DTB_OBJS))
DTB_NEW_RULE_LIST := $(addprefix $(obj)/,$(DTB_NEW_RULE_LIST))
DTB_NEW_RULE_LIST := $(call replace_ddot,$(DTB_NEW_RULE_LIST))
$(DTB_NEW_RULE_LIST):
$(call if_changed_dep,dtc)
define _define_dtbo_rule
$(obj)/$(call replace_ddot,$(1)): $(src)/$(patsubst %.dtbo,%.dts,$(1)) FORCE
endef
$(foreach _dtbo, $(DTBO_NEW_RULE_LIST), $(eval $(call _define_dtbo_rule,$(_dtbo))))
DTBO_OBJS := $(call replace_ddot,$(DTBO_OBJS))
DTBO_NEW_RULE_LIST := $(addprefix $(obj)/,$(DTBO_NEW_RULE_LIST))
DTBO_NEW_RULE_LIST := $(call replace_ddot,$(DTBO_NEW_RULE_LIST))
$(DTBO_NEW_RULE_LIST):
$(call if_changed_dep,dtc)
DTBS_DTBOS := $(DTB_OBJS)$(DTBO_OBJS)
dtbs: $(DTB_OBJS) $(DTBO_OBJS) FORCE
if [ ! -d $(obj)/dtbs/ ] ; then \
mkdir -p $(obj)/dtbs/ ; \
fi
if [ ! -z $(DTBS_DTBOS) ] ; then \
cp -u $(DTB_OBJS) $(DTBO_OBJS) $(obj)/dtbs/ ; \
fi
if [ -d $(obj)/hardware/ ] ; then \
rm -rf $(obj)/hardware/ ; \
fi
clean-files := *.dtb *.dtbo *.tmp