diff options
| author | Damien Le Moal <damien.lemoal@wdc.com> | 2019-01-18 15:49:37 +0900 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-01-21 09:58:33 +0530 |
| commit | 0df82694776d4497ca3bcfb662a68fd817698e89 (patch) | |
| tree | a0524cf1d8c2df483adb241c53bb3885c2503230 /Makefile | |
| parent | f4373731e386a3b410f3e8acf6620111fb339abc (diff) | |
Makefile: Add support for device tree compilation
Add rules to compile dts files into dtb files using the device tree
compiler (dtc). A platform can specify the DTS file to compile using
the platform-dtb-y variable. The flattened device tree binary file to be
used for building the final polatform firmware can be specified using
the new FW_PAYLOAD_FDT firmware configuration option to point to the
automatically compiled FDT file. Using the existing FW_PAYLOAD_FDT_PATH
configuration option is still possible and will take precedence over
the FW_PAYLOAD_FDT definition.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -79,6 +79,7 @@ include $(firmware-object-mks) lib-objs-path-y=$(foreach obj,$(lib-objs-y),$(build_dir)/lib/$(obj)) ifdef PLATFORM platform-objs-path-y=$(foreach obj,$(platform-objs-y),$(build_dir)/$(platform_subdir)/$(obj)) +platform-dtb-path-y=$(foreach obj,$(platform-dtb-y),$(build_dir)/$(platform_subdir)/$(obj)) platform-common-objs-path-y=$(foreach obj,$(platform-common-objs-y),$(build_dir)/platform/common/$(obj)) firmware-bins-path-y=$(foreach bin,$(firmware-bins-y),$(build_dir)/$(platform_subdir)/firmware/$(bin)) endif @@ -154,6 +155,9 @@ else OBJCOPY ?= objcopy endif +DTC = dtc +DTCFLAGS = -O dtb + # Setup functions for compilation define dynamic_flags -I$(shell dirname $(2)) -D__OBJNAME__=$(subst -,_,$(shell basename $(1) .o)) @@ -212,10 +216,14 @@ compile_ar = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \ compile_objcopy = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \ echo " OBJCOPY $(subst $(build_dir)/,,$(1))"; \ $(OBJCOPY) -S -O binary $(2) $(1) +compile_dts = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \ + echo " DTC $(subst $(build_dir)/,,$(1))"; \ + $(DTC) $(DTCFLAGS) -o $(1) $(2) targets-y = $(build_dir)/lib/libsbi.a ifdef PLATFORM targets-y += $(build_dir)/$(platform_subdir)/lib/libplatsbi.a +targets-y += $(platform-dtb-path-y) endif targets-y += $(firmware-bins-path-y) @@ -265,6 +273,9 @@ $(build_dir)/$(platform_subdir)/%.dep: $(src_dir)/%.S $(build_dir)/$(platform_subdir)/%.o: $(src_dir)/%.S $(call compile_as,$@,$<) +$(build_dir)/%.dtb: $(src_dir)/%.dts + $(call compile_dts,$@,$<) + # Rule for "make docs" $(build_dir)/docs/latex/refman.pdf: $(build_dir)/docs/latex/refman.tex $(CMD_PREFIX)mkdir -p $(build_dir)/docs |