pylibfdt: compile pylibfdt only when dtoc/binman is necessary
Currently, pylibfdt is always compiled if swig is installed on your
machine. It is really annoying because most of targets (excepts
x86, sunxi, rockchip) do not use dtoc or binman.
"checkbinman" and "checkdtoc" are wrong. It is odd that the final
build stage checks if we have built necessary tools. If your platform
depends on dtoc/binman, you must be able to build pylibfdt. If swig
is not installed, it should fail immediately.
I added PYLIBFDT, DTOC, BINMAN entries to Kconfig. They should be
property select:ed by platforms that need them. Kbuild will descend
into scripts/dtc/pylibfdt/ only when CONFIG_PYLIBFDT is enabled.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/Makefile b/Makefile
index f94813d..b5f81e3 100644
--- a/Makefile
+++ b/Makefile
@@ -1135,7 +1135,7 @@
u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
- $(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE
+ $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
$(call if_changed,binman)
OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
@@ -1144,8 +1144,7 @@
endif
ifneq ($(CONFIG_ARCH_SUNXI),)
-u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \
- checkbinman FORCE
+u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
$(call if_changed,binman)
endif
@@ -1379,18 +1378,6 @@
$(timestamp_h): $(srctree)/Makefile FORCE
$(call filechk,timestamp.h)
-checkbinman: tools
- @if ! ( echo 'import libfdt' | ( PYTHONPATH=scripts/dtc/pylibfdt $(PYTHON) )); then \
- echo >&2; \
- echo >&2 '*** binman needs the Python libfdt library.'; \
- echo >&2 '*** Either install it on your system, or try:'; \
- echo >&2 '***'; \
- echo >&2 '*** sudo apt-get install swig libpython-dev'; \
- echo >&2 '***'; \
- echo >&2 '*** to have U-Boot build its own version.'; \
- false; \
- fi
-
# ---------------------------------------------------------------------------
quiet_cmd_cpp_lds = LDS $@
cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1304417..2607fed 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -675,6 +675,7 @@
config ARCH_SUNXI
bool "Support sunxi (Allwinner) SoCs"
+ select BINMAN
select CMD_GPIO
select CMD_MMC if MMC
select CMD_USB if DISTRO_DEFAULTS
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 98c56ad..5c23b2c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -152,6 +152,7 @@
config X86_RESET_VECTOR
bool
default n
+ select BINMAN
# The following options control where the 16-bit and 32-bit init lies
# If SPL is enabled then it normally holds this init code, and U-Boot proper
diff --git a/dts/Kconfig b/dts/Kconfig
index daa757d..0cef225 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -8,6 +8,17 @@
config DTC
bool
+config PYLIBFDT
+ bool
+
+config DTOC
+ bool
+ select PYLIBFDT
+
+config BINMAN
+ bool
+ select DTOC
+
menu "Device Tree Control"
depends on SUPPORT_OF_CONTROL
@@ -231,6 +242,7 @@
config SPL_OF_PLATDATA
bool "Generate platform data for use in SPL"
depends on SPL_OF_CONTROL
+ select DTOC
help
For very constrained SPL environments the overhead of decoding
device tree nodes and converting their contents into platform data
@@ -252,6 +264,7 @@
config TPL_OF_PLATDATA
bool "Generate platform data for use in TPL"
depends on TPL_OF_CONTROL
+ select DTOC
help
For very constrained SPL environments the overhead of decoding
device tree nodes and converting their contents into platform data
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 065bb25..ca04476 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -276,10 +276,10 @@
dts_dir:
$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
-include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
+include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
$(call if_changed,dtoch)
-$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
+$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
$(call if_changed,dtocc)
ifdef CONFIG_SAMSUNG
@@ -380,17 +380,6 @@
include $(cmd_files)
endif
-checkdtoc: tools
- @if ! ( echo 'import libfdt' | ( PYTHONPATH=scripts/dtc/pylibfdt $(PYTHON) )); then \
- echo '*** dtoc needs the Python libfdt library. Either '; \
- echo '*** install it on your system, or try:'; \
- echo '***'; \
- echo '*** sudo apt-get install swig libpython-dev'; \
- echo '***'; \
- echo '*** to have U-Boot build its own version.'; \
- false; \
- fi
-
PHONY += FORCE
FORCE:
diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index f4a16ed..90ef2db 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -31,4 +31,4 @@
clean-files := dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h
# Added for U-Boot
-subdir-y += pylibfdt
+subdir-$(CONFIG_PYLIBFDT) += pylibfdt