From 51148790f26e42ef1fd4a1a8d056bf0252539525 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 30 Jul 2014 14:08:17 +0900 Subject: kconfig: switch to Kconfig This commit enables Kconfig. Going forward, we use Kconfig for the board configuration. mkconfig will never be used. Nor will include/config.mk be generated. Kconfig must be adjusted for U-Boot because our situation is a little more complicated than Linux Kernel. We have to generate multiple boot images (Normal, SPL, TPL) from one source tree. Each image needs its own configuration input. Usage: Run "make _defconfig" to do the board configuration. It will create the .config file and additionally spl/.config, tpl/.config if SPL, TPL is enabled, respectively. You can use "make config", "make menuconfig" etc. to create a new .config or modify the existing one. Use "make spl/config", "make spl/menuconfig" etc. for spl/.config and do likewise for tpl/.config file. The generic syntax of configuration targets for SPL, TPL is: / Here, is either 'spl' or 'tpl' is 'config', 'menuconfig', 'xconfig', etc. When the configuration is done, run "make". (Or "make _defconfig all" will do the configuration and build in one time.) For futher information of how Kconfig works in U-Boot, please read the comment block of scripts/multiconfig.py. By the way, there is another item worth remarking here: coexistence of Kconfig and board herder files. Prior to Kconfig, we used C headers to define a set of configs. We expect a very long term to migrate from C headers to Kconfig. Two different infractructure must coexist in the interim. In our former configuration scheme, include/autoconf.mk was generated for use in makefiles. It is still generated under include/, spl/include/, tpl/include/ directory for the Normal, SPL, TPL image, respectively. Signed-off-by: Masahiro Yamada Acked-by: Simon Glass --- scripts/Makefile.spl | 31 +++---------------------------- 1 file changed, 3 insertions(+), 28 deletions(-) (limited to 'scripts/Makefile.spl') diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl index bf677aa42a..88c01d18ec 100644 --- a/scripts/Makefile.spl +++ b/scripts/Makefile.spl @@ -21,13 +21,10 @@ _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) include $(srctree)/scripts/Kbuild.include -CONFIG_SPL_BUILD := y -export CONFIG_SPL_BUILD +UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE) -KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD -ifeq ($(CONFIG_TPL_BUILD),y) -KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD -endif +-include $(obj)/include/config/auto.conf +-include $(obj)/include/autoconf.mk ifeq ($(CONFIG_TPL_BUILD),y) export CONFIG_TPL_BUILD @@ -36,14 +33,6 @@ else SPL_BIN := u-boot-spl endif -include include/config.mk - -ifeq ($(CONFIG_TPL_BUILD),y) - -include include/tpl-autoconf.mk -else - -include include/spl-autoconf.mk -endif - include $(srctree)/config.mk # Enable garbage collection of un-used sections for SPL @@ -53,20 +42,6 @@ LDFLAGS_FINAL += --gc-sections # FIX ME cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ $(NOSTDINC_FLAGS) -c_flags := $(KBUILD_CFLAGS) $(cpp_flags) - -# Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL) -quiet_cmd_autoconf = GEN $@ - cmd_autoconf = \ - $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \ - sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \ - rm $@.tmp - -include/tpl-autoconf.mk: include/config.h - $(call cmd,autoconf) - -include/spl-autoconf.mk: include/config.h - $(call cmd,autoconf) HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) -- cgit v1.2.1