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ARM: dts: msm: Add 32-bit DT Overlay support

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Add 32-bit DT OVERLAY support.

Change-Id: Ied5b9f17d78116df478e7c4fbb91261712bd46e3
Signed-off-by: Tengfei Fan <tengfeif@codeaurora.org>
This commit is contained in:
Tengfei Fan
2019-09-10 19:03:23 +08:00
parent 4c95eded28
commit 6e78024423
3 changed files with 40 additions and 4 deletions
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12
arch/arm/Makefile
View File

@@ -10,6 +10,10 @@
#
# Copyright (C) 1995-2001 by Russell King
ifeq ($(CONFIG_BUILD_ARM64_DT_OVERLAY),y)
export DTC_FLAGS := -@
endif
LDFLAGS_vmlinux :=-p --no-undefined -X --pic-veneer
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux += --be8
@@ -314,6 +318,8 @@ ifeq ($(CONFIG_USE_OF),y)
KBUILD_DTBS := dtbs
endif
DTSSUBDIR := vendor/qcom
all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTBS)
@@ -348,6 +354,7 @@ PHONY += dtbs dtbs_install
dtbs: prepare scripts
$(Q)$(MAKE) $(build)=$(boot)/dts
$(foreach DIR, $(DTSSUBDIR), $(Q)$(MAKE) $(build)=$(boot)/dts/$(DIR) MACHINE=$(MACHINE) dtbs)
dtbs_install:
$(Q)$(MAKE) $(dtbinst)=$(boot)/dts
@@ -359,7 +366,10 @@ ifeq ($(CONFIG_VDSO),y)
endif
zImage-dtb: vmlinux scripts dtbs
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) DTSSUBDIR=$(DTSSUBDIR) $(boot)/$@
Image-dtb: vmlinux scripts dtbs
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) DTSSUBDIR=$(DTSSUBDIR) $(boot)/$@
# We use MRPROPER_FILES and CLEAN_FILES now
archclean:

16
arch/arm/boot/Makefile
View File

@@ -33,10 +33,20 @@ targets := Image zImage xipImage bootpImage uImage
DTB_NAMES := $(subst $\",,$(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE_NAMES))
ifneq ($(DTB_NAMES),)
DTB_LIST := $(addsuffix .dtb,$(DTB_NAMES))
else
DTB_LIST := $(dtb-y)
endif
DTB_OBJS := $(addprefix $(obj)/dts/,$(DTB_LIST))
else
# Use the same way as ARM64 does to have dtb files appended
# to kernel image.
# For dt overlay support, currently there isn't have any
# uniform list for dtb files. There is only one uniform list
# for overlay's dtbo files which is managered by dtbo-y. And
# dtb files are derived from each dtbo file's dtbo-base. so
# it use a simple way just to find all dtb files which
# generated during the build.
# Note that dtb obj directory will always be cleaned at the
# beginning of kernel build.
DTB_OBJS := $(shell find $(obj)/dts/ -name \*.dtb)
endif
ifeq ($(CONFIG_XIP_KERNEL),y)

16
arch/arm/boot/dts/vendor/qcom/Makefile vendored Normal file
View File

@@ -0,0 +1,16 @@
# SPDX-License-Identifier: GPL-2.0-only
include $(srctree)/arch/arm64/boot/dts/vendor/qcom/Makefile
$(obj)/%.dtb: $(src)/../../../../../arm64/boot/dts/vendor/qcom/%.dts FORCE
$(call if_changed_dep,dtc)
ifeq ($(CONFIG_BUILD_ARM64_DT_OVERLAY),y)
$(obj)/%.dtbo:$(src)/../../../../../arm64/boot/dts/vendor/qcom/%.dts FORCE
$(call if_changed_dep,dtc)
$(call if_changed,dtbo_verify)
dtbs: $(addprefix $(obj)/,$(dtb-y)) $(addprefix $(obj)/,$(dtbo-y))
else
dtbs: $(addprefix $(obj)/,$(dtb-y))
endif
clean-files := *.dtb