i.mx6 U-boot Mkconfig Hacking

/**************************************************************************** * I.MX6 U-Boot MKCONFI G Hacking * Disclaimer: * This article is primarily to know how mkconfig works in U-boot, how to summarize the contents of the configuration *, and where to put the content. * 2015-12-19 Zengjianfeng *******************************************************, Ping Shan Village, Nanshan District, Shenzhen ********************/                    \\\\\\\\\-*-Directory-*-//////////|First, reference documents:|Second, Makefile|Third, Mkconfig| Iv. include/config.h| Wu, include/config.mk------------------------------First, reference documents:1. $ (@:_config=What do you mean? http://blog.csdn.net/zbffff/article/details/18991145    2. U-BOOT Makefile Comment http://wenku.baidu.com/view/ff14f319227916888486d7cb.html    3. Makefile in the @ http://www.cnblogs.com/lihaiping/archive/2013/03/20/makefile.html    4. Functions commonly used in Makefile http://linux.chinaunix.net/techdoc/develop/2009/07/09/1122854.shtml    5. U-boot Transplant (ii)--U-BOOT compilation Process Analysis (2) http://blog.csdn.net/wafx1314/article/details/11260041    6Please consult the specific usage of the Linux make do clean do all http://zhidao.baidu.com/question/129692720.htmlSecond, Makefile ... Srctree:=$ (CURDIR) ... Mkconfig:= $ (Srctree)/mkconfig export Mkconfig ... mx6solo_sabresd_config mx6solo_sabresd_mfg_config Mx6solo_sabresd_android_config mx6dl_sabresd_config Mx6dl_sabresd_mfg_config MX6DL _sabresd_android_config mx6q_sabresd_config Mx6q_sabresd_android_config mx6q _sabresd_mfg_config mx6q_sabresd_iram_config:unconfig @[-Z"$ (findstring iram_,[email protected])"] ||{echo"text_base = 0x00907000">$ (obj) board/freescale/mx6q_sabresd/config.tmp; Echo"... with Iram configuration" ; } @$ (Mkconfig) $ (@:_config=arm arm_cortexa8 mx6q_sabresd Freescale mx6 ... Three, Mkconfig #!/bin/sh-e # Script to the Create header files and links to configure # U-boot fora specific board. # # Parameters:target Architecture CPU Board [VENDOR] [SOC] # # (C)2002-2006DENX software Engineering, Wolfgang Denk <[email protected]># APPEND=no # Default:createNewConfig file # Development Board name Board_name=""# Name to printinchmake output # uses the while loop and case for command-line parameter extraction, which is a good way to handle while[$#-GT0] ; Do         Case " $" inch--) shift; Break ;; -a) shift; Append=yes;; -N) Shift; Board_name="${1%%_config}";   shift; # %%remove _config in a string*) Break ;; Esac Done # If none of the above command-line arguments, then $ $ is the name of the Development Board ["${board_name}"] || Board_name=" $"# The number of parameters is less than 4 or more than 6, the direct exit, it is strange, why not put in front to judge it [$#-lt4] && exit1    [ $# -gt6] && exit1# show Message Echo"Configuring for ${board_name} BOARD ..."# # Create link to architecture specific headers # # If the compiled directory is different from the source code directory, do the followingif["$SRCTREE"!="$OBJTREE" ] ; Then mkdir-P ${objtree}/include # Creating an include directory mkdir-P ${objtree}/Include2 # Create include2 directory CD ${objtree}/Include2 # Enter Include2 directory RM-F ASM # prevents ASM already exists ln-S ${srctree}/include/asm-$2ASM # re-flex the link to a fixed location $2(ARM) platform Lnprefix=".. /.. /include2/asm/"CD../include RM-RF asm-$2RM-F ASM mkdir ASM-$2LN-S asm-$2ASMElseCD./include RM-F ASM Ln-S asm-$2ASM # $2=Arm fi # delete include/asm-arm/Arch This soft link rm-F asm-$2/Arch # $6 equals mx6if[-Z"$6"-O"$6"="NULL" ] ; Then ln-S ${lnprefix}arch-$3asm-$2/ArchElseLN-S ${lnprefix}arch-$6asm-$2/Arch fiif[" $"="Arm" ] ; Then RM-F asm-$2/Proc LN-S ${LNPREFIX}PROC-ARMV asm-$2/proc Fi # # Create include file forMake # echo"ARCH = $"> Config.mk # $2=Arm Echo"CPU = $ $">> CONFIG.MK # $3=Arm_cortexa8 Echo"BOARD = $4">> CONFIG.MK # $4=MX6Q_SABRESD # $5=Freescale [" $"] && [" $"!="NULL"] && Echo"VENDOR = $">>Config.mk # $6=mx6 ["$6"] && ["$6"!="NULL"] && Echo"SOC = $6">>CONFIG.MK # # Create Board specific header file # APPEND=Noif["$APPEND"="Yes"] # Append to existing config file then echo>>config.hElse> Config.h # CreateNewConfig file fi # It turns out that we can view config files in this file echo"/ * Automatically generated-do not edit * /">>Config.h # $1=mx6dl_sabresd_android Echo"#include <configs/$1.h>">>config.h Echo"#include <asm/config.h>">>Config.h Exit0Iv. include/config.h/*automatically generated-do not edit*/#include<configs/mx6dl_sabresd_android.h>#include<asm/config.h>v. include/config.mk ARCH=Arm CPU=arm_cortexa8 BOARD=mx6q_sabresd VENDOR=Freescale SOC=mx6 Six, Summary: from the above situation, if you want to create a new development Board in the Board directory<board_name> directory, in the Include/configs directory also to establish a corresponding <board_name> file, which is stored in the Development Board <board_name> configuration information. There is no validation at this time.

i.mx6 U-boot Mkconfig Hacking