path: root/scripts/Makefile.spl
diff options
authorMasahiro Yamada <>2014-07-30 14:08:17 +0900
committerTom Rini <>2014-07-30 08:48:03 -0400
commit51148790f26e42ef1fd4a1a8d056bf0252539525 (patch)
tree2b8c24c0308ae13126f84a34d511226f6c4b949b /scripts/Makefile.spl
parent4ce99570292544746d738b0621f83da1d6ce4ddc (diff)
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/ 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 <board>_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: <target_image>/<config_command> Here, <target_image> is either 'spl' or 'tpl' <config_command> is 'config', 'menuconfig', 'xconfig', etc. When the configuration is done, run "make". (Or "make <board>_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/ 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/ 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 <>
Diffstat (limited to 'scripts/Makefile.spl')
1 files changed, 3 insertions, 28 deletions
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 $(srctree)/scripts/Kbuild.include
-ifeq ($(CONFIG_TPL_BUILD),y)
+-include $(obj)/include/config/auto.conf
+-include $(obj)/include/
ifeq ($(CONFIG_TPL_BUILD),y)
@@ -36,14 +33,6 @@ else
SPL_BIN := u-boot-spl
-include include/
-ifeq ($(CONFIG_TPL_BUILD),y)
- -include include/
- -include include/
include $(srctree)/
# Enable garbage collection of un-used sections for SPL
@@ -53,20 +42,6 @@ LDFLAGS_FINAL += --gc-sections
-c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
-# Auto-generate the 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/ include/config.h
- $(call cmd,autoconf)
-include/ include/config.h
- $(call cmd,autoconf)
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
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