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![Masahiro Yamada](/assets/img/avatar_default.png)
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>
40 lines
1.1 KiB
Makefile
40 lines
1.1 KiB
Makefile
#
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# (C) Copyright 2003 Josef Baumgartner <josef.baumgartner@telex.de>
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#
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# (C) Copyright 2000-2004
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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cfg=$(srctree)/include/configs/$(CONFIG_SYS_CONFIG_NAME:"%"=%).h
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is5208:=$(shell grep CONFIG_M5208 $(cfg))
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is5249:=$(shell grep CONFIG_M5249 $(cfg))
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is5253:=$(shell grep CONFIG_M5253 $(cfg))
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is5271:=$(shell grep CONFIG_M5271 $(cfg))
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is5272:=$(shell grep CONFIG_M5272 $(cfg))
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is5275:=$(shell grep CONFIG_M5275 $(cfg))
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is5282:=$(shell grep CONFIG_M5282 $(cfg))
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ifneq (,$(findstring CONFIG_M5208,$(is5208)))
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PLATFORM_CPPFLAGS += -mcpu=5208
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endif
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ifneq (,$(findstring CONFIG_M5249,$(is5249)))
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PLATFORM_CPPFLAGS += -mcpu=5249
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endif
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ifneq (,$(findstring CONFIG_M5253,$(is5253)))
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PLATFORM_CPPFLAGS += -mcpu=5253
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endif
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ifneq (,$(findstring CONFIG_M5271,$(is5271)))
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PLATFORM_CPPFLAGS += -mcpu=5271
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endif
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ifneq (,$(findstring CONFIG_M5272,$(is5272)))
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PLATFORM_CPPFLAGS += -mcpu=5272
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endif
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ifneq (,$(findstring CONFIG_M5275,$(is5275)))
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PLATFORM_CPPFLAGS += -mcpu=5275
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endif
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ifneq (,$(findstring CONFIG_M5282,$(is5282)))
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PLATFORM_CPPFLAGS += -mcpu=5282
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endif
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