Build dtbs

dts/.gitignore

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+*/*

dts/BUILD.bazel

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+# SPDX-License-Identifier: GPL-2.0-or-later
+
+load("//build/kernel/kleaf:kernel.bzl", "kernel_dtstree")
+
+kernel_dtstree(
+    name = "tegra_dts",
+
+    visibility = ["//visibility:public"],
+)

dts/Makefile

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+# SPDX-FileCopyrightText: Copyright (c) 2022-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: GPL-2.0-only
+
+ifneq ($(TEGRA_TOP),)
+SOURCE_TOP := $(TEGRA_TOP)
+else ifneq ($(TOP),)
+SOURCE_TOP := $(TOP)
+else ifneq ($(ROOT_DIR),)
+SOURCE_TOP := $(ROOT_DIR)
+else
+$(error TEGRA_TOP or TOP is not defined)
+endif
+
+tegra-dtstree := $(SOURCE_TOP)/vendor/nvidia/tegra/dts
+
+null :=
+space :=$(null) $(null)
+
+DTC_INCLUDE :=
+# SOC independent common include
+DTC_INCLUDE += $(tegra-dtstree)/tegra/nv-public
+
+ifeq ($(SRCARCH),arm64)
+ifeq ($(CONFIG_ARCH_TEGRA_234_SOC),y)
+# SOC T23X specific common include
+DTC_INCLUDE += $(tegra-dtstree)/t23x/nv-public/include/kernel
+DTC_INCLUDE += $(tegra-dtstree)/t23x/nv-public/include/nvidia-oot
+DTC_INCLUDE += $(tegra-dtstree)/t23x/nv-public/include/platforms
+DTC_INCLUDE += $(tegra-dtstree)/t23x/nv-public
+endif
+DTC_INCLUDE += $(srctree)/arch/arm64/boot/dts/nvidia
+else ifeq ($(SRCARCH),arm)
+DTC_INCLUDE += $(srctree)/arch/arm/boot/dts/nvidia
+endif
+
+dtb-y :=
+dtbo-y :=
+fdts :=
+ifeq ($(CONFIG_ARCH_TEGRA_114_SOC),y)
+fdts += $(tegra-dtstree)/t114
+endif
+ifeq ($(CONFIG_ARCH_TEGRA_124_SOC),y)
+fdts += $(tegra-dtstree)/t124
+endif
+ifeq ($(CONFIG_ARCH_TEGRA_210_SOC),y)
+fdts += $(tegra-dtstree)/t21x
+endif
+ifeq ($(CONFIG_ARCH_TEGRA_186_SOC),y)
+fdts += $(tegra-dtstree)/t18x
+endif
+ifeq ($(CONFIG_ARCH_TEGRA_194_SOC),y)
+fdts += $(tegra-dtstree)/t19x
+endif
+ifeq ($(CONFIG_ARCH_TEGRA_234_SOC),y)
+fdts += $(tegra-dtstree)/t23x
+endif
+
+# Add internal SOCs to scan the DT makefiles
+ifneq ($(internal_soc_list),)
+fdts += $(addprefix $(tegra-dtstree)/,$(internal_soc_list))
+endif
+
+# Remove the DTs from protected soc list
+ifneq ($(protected_soc_list),)
+kdts := $(foreach dt_path, $(fdts), $(if $(filter $(protected_soc_list),$(patsubst -,$(space),$(subst /, $(space),$(dt_path)))),,$(dt_path)))
+kdts := $(filter-out $(space)$(space),$(kdts))
+else
+kdts := $(fdts)
+endif
+
+dts_makefile=$(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 $(dts_mfiles)
+ifneq ($(dts-include),)
+DTC_INCLUDE += $(addprefix $(tegra-dtstree)/,$(dts-include))
+endif
+endif
+
+# Add path of main Makefile to each dtb/dtbo list
+DTB_OBJS := $(addprefix $(obj)/,$(dtb-y))
+DTBO_OBJS := $(addprefix $(obj)/,$(dtbo-y))
+
+define _define_dtb_rule
+$(obj)/$(1): $(tegra-dtstree)/$(patsubst %.dtb,%.dts,$(1)) FORCE
+endef
+
+$(foreach _dtb, $(dtb-y), $(eval $(call _define_dtb_rule,$(_dtb))))
+
+$(DTB_OBJS):
+	$(call if_changed_dep,dtc)
+
+define _define_dtbo_rule
+$(obj)/$(1): $(tegra-dtstree)/$(patsubst %.dtbo,%.dts,$(1)) FORCE
+endef
+
+$(foreach _dtbo, $(dtbo-y), $(eval $(call _define_dtbo_rule,$(_dtbo))))
+
+$(DTBO_OBJS):
+	$(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
+
+dtb-y += $(dtbo-y)
+
+clean-files := *.dtb *.dtbo *.tmp