Overlays: Port RPi Overlay building

Signed-off-by: Robert Nelson <[email protected]>

Author: RobertCNelson

.gitignore

@@ -17,8 +17,8 @@
 *.c.[012]*.*
 *.dt.yaml
 *.dtb
-*.dtb.S
 *.dtbo
+*.dtb.S
 *.dwo
 *.elf
 *.gcno

Makefile

@@ -1264,10 +1264,11 @@ endif
 
 ifneq ($(dtstree),)
 
-%.dtb %.dtbo: dtbdir=$(patsubst %/,%,$(patsubst %./,%,$(dtstree)/$(dir $@)))
+%.dtb: include/config/kernel.release scripts_dtc
+	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
 
-%.dtb %.dtbo: include/config/kernel.release scripts_dtc
-	$(Q)$(MAKE) $(build)=$(dtbdir) $(dtstree)/$@
+%.dtbo: include/config/kernel.release scripts_dtc
+	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
 
 PHONY += dtbs dtbs_install dtbs_check
 dtbs: include/config/kernel.release scripts_dtc
@@ -1747,7 +1748,6 @@ clean: $(clean-dirs)
 		\( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '*.ko.*' \
 		-o -name '*.dtb' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
-		-o -name '*.dtbo' -o -name '*.dtbo.S' \
 		-o -name '*.dwo' -o -name '*.lst' \
 		-o -name '*.su' -o -name '*.mod' -o -name '*.ns_deps' \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

arch/arm/boot/dts/Makefile

@@ -1340,12 +1340,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-portwell-neptune.dtb \
 	aspeed-bmc-quanta-q71l.dtb
 
-always		+= $(dtb-merge-y)
+targets += dtbs dtbs_install
+targets += $(dtb-y)
 
-$(addprefix $(obj)/,$(dtb-merge-y)): TI_DTBOS
-	@$(srctree)/scripts/dtb-merge $(srctree) $(objtree) $@ $(objtree)/scripts/dtc/fdtoverlay $(src)/ti
-
-TI_DTBOS:
-	$(Q)$(MAKE) $(build)=$(src)/ti
-
-PHONY += TI_DTBOS
+subdir-y	:= overlays

scripts/Makefile.build

@@ -448,7 +448,6 @@ intermediate_targets = $(foreach sfx, $(2), \
 # %.tab.o <- %.tab.[ch] <- %.y
 targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \
 	   $(call intermediate_targets, .dtb.o, .dtb.S .dtb) \
-	   $(call intermediate_targets, .dtbo.o, .dtbo.S .dtbo) \
 	   $(call intermediate_targets, .lex.o, .lex.c) \
 	   $(call intermediate_targets, .tab.o, .tab.c .tab.h)
 

scripts/Makefile.dtbinst

@@ -20,6 +20,7 @@ include scripts/Kbuild.include
 include $(src)/Makefile
 
 dtbinst-files	:= $(sort $(dtb-y) $(if $(CONFIG_OF_ALL_DTBS), $(dtb-)))
+dtboinst-files	:= $(sort $(dtbo-y) $(if $(CONFIG_OF_ALL_DTBS), $(dtb-)))
 dtbinst-dirs	:= $(subdir-y) $(subdir-m)
 
 # Helper targets for Installing DTBs into the boot directory
@@ -28,16 +29,16 @@ quiet_cmd_dtb_install =	INSTALL $<
 
 install-dir = $(patsubst $(dtbinst_root)%,$(INSTALL_DTBS_PATH)%,$(obj))
 
-$(filter %.dtb,$(dtbinst-files)): %.dtb: $(obj)/%.dtb
+$(dtbinst-files): %.dtb: $(obj)/%.dtb
+	$(call cmd,dtb_install,$(install-dir))
+
+$(dtboinst-files): %.dtbo: $(obj)/%.dtbo
 	$(call cmd,dtb_install,$(install-dir))
 
 $(dtbinst-dirs):
 	$(Q)$(MAKE) $(dtbinst)=$(obj)/$@
 
-dummy:
-	@echo > /dev/null
-
-PHONY += $(dtbinst-files) $(dtbinst-dirs) dummy
-__dtbs_install: $(dtbinst-files) $(dtbinst-dirs) dummy
+PHONY += $(dtbinst-files) $(dtboinst-files) $(dtbinst-dirs)
+__dtbs_install: $(dtbinst-files) $(dtboinst-files) $(dtbinst-dirs)
 
 .PHONY: $(PHONY)

scripts/Makefile.lib

@@ -63,8 +63,6 @@ extra-$(CONFIG_OF_ALL_DTBS)	+= $(dtb-)
 ifneq ($(CHECK_DTBS),)
 extra-y += $(patsubst %.dtb,%.dt.yaml, $(dtb-y))
 extra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtb,%.dt.yaml, $(dtb-))
-extra-y += $(patsubst %.dtbo,%.dt.yaml, $(dtb-y))
-extra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtbo,%.dt.yaml, $(dtb-))
 endif
 
 # Add subdir path
@@ -242,6 +240,7 @@ DTC ?= $(objtree)/scripts/dtc/dtc
 ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
 DTC_FLAGS += -Wno-unit_address_vs_reg \
 	-Wno-unit_address_format \
+	-Wno-gpios_property \
 	-Wno-avoid_unnecessary_addr_size \
 	-Wno-alias_paths \
 	-Wno-graph_child_address \
@@ -275,9 +274,6 @@ cmd_dt_S_dtb=						\
 $(obj)/%.dtb.S: $(obj)/%.dtb FORCE
 	$(call if_changed,dt_S_dtb)
 
-$(obj)/%.dtbo.S: $(obj)/%.dtbo FORCE
-	$(call if_changed,dt_S_dtb)
-
 quiet_cmd_dtc = DTC     $@
 cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
 	$(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
@@ -289,9 +285,6 @@ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
 $(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
 	$(call if_changed_dep,dtc,dtb)
 
-$(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
-	$(call if_changed_dep,dtc,dtb)
-
 DT_CHECKER ?= dt-validate
 DT_BINDING_DIR := Documentation/devicetree/bindings
 DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.yaml
@@ -307,8 +300,23 @@ endef
 $(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
 	$(call if_changed_rule,dtc,yaml)
 
-$(obj)/%.dt.yaml: $(src)/%.dtso $(DTC) $(DT_TMP_SCHEMA) FORCE
-	$(call if_changed_rule,dtc_dt_yaml)
+quiet_cmd_dtco = DTCO    $@
+cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
+	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+	$(DTC) -@ -H epapr -O dtb -o $@ -b 0 \
+		-i $(dir $<) $(DTC_FLAGS) \
+		-Wno-interrupts_property \
+		-Wno-label_is_string \
+		-Wno-reg_format \
+		-Wno-pci_device_bus_num \
+		-Wno-i2c_bus_reg \
+		-Wno-spi_bus_reg \
+		-Wno-avoid_default_addr_size \
+		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
+	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
+
+$(obj)/%.dtbo: $(src)/%.dts FORCE
+	$(call if_changed_dep,dtco)
 
 dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)