diff options
| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-07-30 14:08:17 +0900 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-07-30 08:48:03 -0400 |
| commit | 51148790f26e42ef1fd4a1a8d056bf0252539525 (patch) | |
| tree | 2b8c24c0308ae13126f84a34d511226f6c4b949b /config.mk | |
| parent | 4ce99570292544746d738b0621f83da1d6ce4ddc (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 'config.mk')
| -rw-r--r-- | config.mk | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -20,6 +20,16 @@ LDFLAGS_FINAL := OBJCOPYFLAGS := ######################################################################### +ARCH := $(CONFIG_SYS_ARCH:"%"=%) +CPU := $(CONFIG_SYS_CPU:"%"=%) +BOARD := $(CONFIG_SYS_BOARD:"%"=%) +ifneq ($(CONFIG_SYS_VENDOR),) +VENDOR := $(CONFIG_SYS_VENDOR:"%"=%) +endif +ifneq ($(CONFIG_SYS_SOC),) +SOC := $(CONFIG_SYS_SOC:"%"=%) +endif + # Some architecture config.mk files need to know what CPUDIR is set to, # so calculate CPUDIR before including ARCH/SOC/CPU config.mk files. # Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains |