On Wed, Jul 30, 2014 at 02:08:17PM +0900, Masahiro Yamada wrote: > 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 <yamad...@jp.panasonic.com> > Acked-by: Simon Glass <s...@chromium.org>
Applied to u-boot/master, thanks! -- Tom
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