add overlay-compilation-support to rockchgip64-dev

patch/kernel/rockchip64-dev/general-add-overlay-compilation-support.patch

@@ -0,0 +1,119 @@
+diff --git a/arch/arm/Makefile b/arch/arm/Makefile
+index 65f4e2a4..9eb2043c 100644
+--- a/arch/arm/Makefile
++++ b/arch/arm/Makefile
+@@ -339,6 +339,12 @@ $(INSTALL_TARGETS):
+ %.dtb: | scripts
+ 	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
+
++%.dtbo: | scripts
++	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
++
++%.scr: | scripts
++	$(Q)$(MAKE) $(build)=$(boot)/dts ARCH=$(ARCH) $(boot)/dts/$@
++
+ PHONY += dtbs dtbs_install
+
+ dtbs: prepare scripts
+diff --git a/arch/arm/boot/.gitignore b/arch/arm/boot/.gitignore
+index 3c79f859..4e5c1d59 100644
+--- a/arch/arm/boot/.gitignore
++++ b/arch/arm/boot/.gitignore
+@@ -3,3 +3,5 @@ zImage
+ xipImage
+ bootpImage
+ uImage
++*.dtb*
++*.scr
+\ No newline at end of file
+diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
+index f839ecd9..9788f16d 100644
+--- a/arch/arm64/Makefile
++++ b/arch/arm64/Makefile
+@@ -121,6 +121,12 @@ zinstall install:
+ %.dtb: scripts
+ 	$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
+
++%.dtbo: | scripts
++	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
++
++%.scr: | scripts
++	$(Q)$(MAKE) $(build)=$(boot)/dts ARCH=$(ARCH) $(boot)/dts/$@
++
+ PHONY += dtbs dtbs_install
+
+ dtbs: prepare scripts
+diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
+index 34614a48..8a8313d6 100644
+--- a/scripts/Makefile.dtbinst
++++ b/scripts/Makefile.dtbinst
+@@ -20,6 +20,9 @@ include scripts/Kbuild.include
+ include $(src)/Makefile
+
+ dtbinst-files	:= $(sort $(dtb-y) $(if $(CONFIG_OF_ALL_DTBS), $(dtb-)))
++dtboinst-files	:= $(dtbo-y)
++script-files	:= $(scr-y)
++readme-files	:= $(dtbotxt-y)
+ dtbinst-dirs	:= $(subdir-y) $(subdir-m)
+
+ # Helper targets for Installing DTBs into the boot directory
+@@ -32,10 +35,19 @@ install-dir = $(patsubst $(dtbinst-root)%,$(INSTALL_DTBS_PATH)%,$(obj))
+ $(dtbinst-files): %.dtb: $(obj)/%.dtb
+ 	$(call cmd,dtb_install,$(install-dir))
+
++$(dtboinst-files): %.dtbo: $(obj)/%.dtbo
++	$(call cmd,dtb_install,$(install-dir))
++
++$(script-files): %.scr: $(obj)/%.scr
++	$(call cmd,dtb_install,$(install-dir))
++
++$(readme-files): %: $(src)/%
++	$(call cmd,dtb_install,$(install-dir))
++
+ $(dtbinst-dirs):
+ 	$(Q)$(MAKE) $(dtbinst)=$(obj)/$@
+
+-PHONY += $(dtbinst-files) $(dtbinst-dirs)
+-__dtbs_install: $(dtbinst-files) $(dtbinst-dirs)
++PHONY += $(dtbinst-files) $(dtboinst-files) $(script-files) $(readme-files) $(dtbinst-dirs)
++__dtbs_install: $(dtbinst-files) $(dtboinst-files) $(script-files) $(readme-files) $(dtbinst-dirs)
+
+ .PHONY: $(PHONY)
+diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
+index 58c05e5d..2b95dda9 100644
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -278,6 +278,9 @@ cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
+ # ---------------------------------------------------------------------------
+ DTC ?= $(objtree)/scripts/dtc/dtc
+
++# Overlay support
++DTC_FLAGS += -@ -Wno-unit_address_format -Wno-simple_bus_reg
++
+ # Disable noisy checks by default
+ ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),)
+ DTC_FLAGS += -Wno-unit_address_vs_reg \
+@@ -324,6 +327,23 @@ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
+ $(obj)/%.dtb: $(src)/%.dts FORCE
+ 	$(call if_changed_dep,dtc)
+
++quiet_cmd_dtco = DTCO    $@
++cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
++	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
++	$(DTC) -O dtb -o $@ -b 0 \
++		-i $(dir $<) $(DTC_FLAGS) \
++		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
++	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
++
++$(obj)/%.dtbo: $(src)/%.dts FORCE
++	$(call if_changed_dep,dtco)
++
++quiet_cmd_scr = MKIMAGE $@
++cmd_scr = mkimage -C none -A $(ARCH) -T script -d $< $@
++
++$(obj)/%.scr: $(src)/%.scr-cmd FORCE
++	$(call if_changed,scr)
++
+ dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
+
+ # Bzip2