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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-07-30 14:08:17 +0900
committerTom Rini <trini@ti.com>2014-07-30 08:48:03 -0400
commit51148790f26e42ef1fd4a1a8d056bf0252539525 (patch)
tree2b8c24c0308ae13126f84a34d511226f6c4b949b /scripts/Makefile.build
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/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 <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/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 <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'scripts/Makefile.build')
-rw-r--r--scripts/Makefile.build31
1 files changed, 11 insertions, 20 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 04c6f7d2396..baeaabe3105 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -3,14 +3,14 @@
# ==========================================================================
# Modified for U-Boot
-ifeq ($(CONFIG_TPL_BUILD),y)
- src := $(patsubst tpl/%,%,$(obj))
-else
- ifeq ($(CONFIG_SPL_BUILD),y)
- src := $(patsubst spl/%,%,$(obj))
- else
- src := $(obj)
- endif
+prefix := tpl
+src := $(patsubst $(prefix)/%,%,$(obj))
+ifeq ($(obj),$(src))
+prefix := spl
+src := $(patsubst $(prefix)/%,%,$(obj))
+ifeq ($(obj),$(src))
+prefix := .
+endif
endif
PHONY := __build
@@ -40,18 +40,9 @@ subdir-asflags-y :=
subdir-ccflags-y :=
# Read auto.conf if it exists, otherwise ignore
--include include/config/auto.conf
-
-# Added for U-Boot: Load U-Boot configuration
-ifeq ($(CONFIG_TPL_BUILD),y)
- -include include/tpl-autoconf.mk
-else
- ifeq ($(CONFIG_SPL_BUILD),y)
- -include include/spl-autoconf.mk
- else
- -include include/autoconf.mk
- endif
-endif
+# Modified for U-Boot
+-include $(prefix)/include/config/auto.conf
+-include $(prefix)/include/autoconf.mk
include scripts/Kbuild.include