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device-tree: Add makefile for making generic-dts

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Add Makefile to make generic DTS files which are available
at hardware/nvidia/platform/*/generic-dts. These DTS are
mainline compliance.

Bug 3860258

Change-Id: I5e8218f7ee7f2ba192fe130ee983480b3c8ea413
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2804233
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
This commit is contained in:
Laxman Dewangan
2022-11-07 09:31:49 +00:00
committed by mobile promotions
parent f6042cd2af
commit d875303e72
1 changed files with 116 additions and 0 deletions
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116
device-tree/platform/generic-dts/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=515 -DTEGRA_HOST1X_DT_VERSION=1
tegra-dtstree := $(TOP)/hardware/nvidia
# Get relative path for tegra-dtstree from this makefile
null :=
space :=$(null) $(null)
obj-path := $(obj)
obj-path-from-top := $(subst $(TOP),,$(obj-path))
rel-top-path := $(subst /, $(space)/,$(obj-path-from-top))
rel-top-path := $(patsubst /%,../,$(rel-top-path))
rel-top-path := $(subst $(space),,$(rel-top-path))
tegra-rel-dtstree := $(rel-top-path)/hardware/nvidia
DTC_INCLUDE :=
# SOC independent common include
DTC_INCLUDE += $(tegra-dtstree)/soc/tegra/generic-dts/include
# SOC T23X specific common include
DTC_INCLUDE += $(tegra-dtstree)/soc/generic-dts/tegra/include/kernel
DTC_INCLUDE += $(tegra-dtstree)/soc/generic-dts/tegra/include/nvidia-oot
DTC_INCLUDE += $(tegra-dtstree)/soc/generic-dts/t23x/include
DTC_INCLUDE += $(tegra-dtstree)/soc/generic-dts/t23x/dts
dtb-y :=
dtbo-y :=
DTB_LIST := $(dtb-y)
DTBO_LIST := $(dtbo-y)
dtb-y :=
kdts := $(shell find $(tegra-dtstree)/platform -name generic-dts)
dts_makefile=$(foreach d,$(wildcard $1*), $(call dts_makefile,$(d)/,$(2)) $(if $(findstring Makefile,$(d)),$(d)))
dts_mfiles = $(call dts_makefile, $(kdts), Makefile)
ifneq ($(dts_mfiles),)
dts-include :=
include $(dts_mfiles)
dtb-y := $(addprefix $(tegra-rel-dtstree)/,$(dtb-y))
dtbo-y := $(addprefix $(tegra-rel-dtstree)/,$(dtbo-y))
ifneq ($(dts-include),)
DTC_INCLUDE += $(addprefix $(tegra-dtstree)/,$(dts-include))
endif
endif
DTB_LIST += $(dtb-y)
DTBO_LIST += $(dtbo-y)
DTB_NEW_RULE_LIST := $(dtb-y)
DTBO_NEW_RULE_LIST := $(dtbo-y)
# Now save DTB_LIST to dtb-y
dtb-y := $(DTB_LIST)
dtbo-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