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https://gitlab.alpinelinux.org/alpine/aports.git
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56 lines
1.6 KiB
Diff
56 lines
1.6 KiB
Diff
From 2ccecdeaa2fad8f9fd9d828e18c04c3ce2d21197 Mon Sep 17 00:00:00 2001
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From: Patrick Yavitz <pyavitz@xxxxx.com>
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Date: Wed, 3 Apr 2024 09:41:49 -0400
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Subject: [PATCH] device tree overlay support
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Signed-off-by: Patrick Yavitz <pyavitz@xxxxx.com>
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---
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scripts/Makefile.lib | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
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index 68d0134bdbf9..413f9181b763 100644
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--- a/scripts/Makefile.lib
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+++ b/scripts/Makefile.lib
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@@ -348,6 +348,7 @@ ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
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DTC_FLAGS += -Wno-unit_address_vs_reg \
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-Wno-avoid_unnecessary_addr_size \
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-Wno-alias_paths \
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+ -Wno-gpios_property \
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-Wno-graph_child_address \
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-Wno-simple_bus_reg
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else
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@@ -362,6 +363,11 @@ DTC_FLAGS += -Wnode_name_chars_strict \
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-Wunique_unit_address
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endif
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+ifeq ($(CONFIG_OF_OVERLAY),y)
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+# enable creation of __symbols__ node
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+DTC_FLAGS += -@
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+endif
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+
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DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
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# Set -@ if the target is a base DTB that overlay is applied onto
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@@ -421,6 +427,18 @@ $(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
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$(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
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$(call if_changed_dep,dtc)
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+quiet_cmd_dtco = DTCO $@
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+cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
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+ $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
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+ $(DTC) -@ -H epapr -O dtb -o $@ -b 0 \
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+ -i $(dir $<) $(DTC_FLAGS) \
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+ -Wno-interrupts_property \
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+ -d $(depfile).dtc.tmp $(dtc-tmp) ; \
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+ cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
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+
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+$(obj)/%.dtbo: $(obj)/%.dts FORCE
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+ $(call if_changed_dep,dtco)
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+
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dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
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# Bzip2
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--
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2.39.2
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