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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/kconfig
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/kconfig')
-rw-r--r--scripts/kconfig/confdata.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index f88d90f202..ae6ce669e1 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -951,6 +951,14 @@ int conf_write_autoconf(void)
FILE *out, *tristate, *out_h;
int i;
+ /*
+ * Added for U-Boot SPL/TPL
+ */
+ name = getenv("KCONFIG_OBJDIR");
+ if (name && name[0])
+ if (chdir(name))
+ return 1;
+
sym_clear_all_valid();
file_write_dep("include/config/auto.conf.cmd");