明远智睿MY-IMX6 Linux-4.1.15编译参考手册（2）

3  u-boot编译3.1  编译前的准备创建编译工作目录
=====> Input:
mkdir ~/my-work/02_source/ -p
解压源码包到工作目录
=====> Input:
tar xf u-boot-2016.03-svn*.tar.bz2 -C ~/my-work/02_source/

3.2  编译u-boot目标文件进入源码目录
=====> Input:
cd ~/my-work/02_source/u-boot-2016.03
生成目标开发板的 .config 文件
=====> Input:
make myimx6ek140p-6y-256m-emmc_defconfig

=====> Output:
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/zconf.lex.c
  SHIPPED scripts/kconfig/zconf.hash.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
【注意】：上面 make 后面的 myimx6ek140p-6y-256m-emmc_defconfig 改为与开发板型号对应的配置文件。


********** MY-IMX6-EK140 **********
myimx6ek140-6g-128m-emmc_defconfig  myimx6ek140-6y-128m-emmc_defconfig
myimx6ek140-6g-128m-nand_defconfig  myimx6ek140-6y-128m-nand_defconfig
myimx6ek140-6g-256m-emmc_defconfig  myimx6ek140-6y-256m-emmc_defconfig
myimx6ek140-6g-256m-nand_defconfig  myimx6ek140-6y-256m-nand_defconfig
myimx6ek140-6g-512m-emmc_defconfig  myimx6ek140-6y-512m-emmc_defconfig
myimx6ek140-6g-512m-nand_defconfig  myimx6ek140-6y-512m-nand_defconfig

********** MY-IMX6-EK140P **********
myimx6ek140p-6g-128m-emmc_defconfig  myimx6ek140p-6y-128m-emmc_defconfig
myimx6ek140p-6g-128m-nand_defconfig  myimx6ek140p-6y-128m-nand_defconfig
myimx6ek140p-6g-256m-emmc_defconfig  myimx6ek140p-6y-256m-emmc_defconfig
myimx6ek140p-6g-256m-nand_defconfig  myimx6ek140p-6y-256m-nand_defconfig
myimx6ek140p-6g-512m-emmc_defconfig  myimx6ek140p-6y-512m-emmc_defconfig
myimx6ek140p-6g-512m-nand_defconfig  myimx6ek140p-6y-512m-nand_defconfig

********** MY-IMX6-EK200 **********
myimx6ek200-6q-1g_defconfig     myimx6ek200-6q-2g_defconfig     myimx6ek200-6q-512m_defconfig  
myimx6ek200-6u-1g_defconfig     myimx6ek200-6u-2g_defconfig     myimx6ek200-6u-512m_defconfig  
myimx6ek200-6s-512m_defconfig   myimx6ek200-6s-1g_defconfig     myimx6ek200-6s-128m_defconfig  
myimx6ek200-6qp-1g_defconfig    myimx6ek200-6qp-2g_defconfig    myimx6ek200-6qp-512m_defconfig  

********** MY-IMX6-EK314 **********
myimx6ek314-6q-1g_defconfig     myimx6ek314-6q-2g_defconfig     myimx6ek314-6q-512m_defconfig  
myimx6ek314-6u-1g_defconfig     myimx6ek314-6u-2g_defconfig     myimx6ek314-6u-512m_defconfig  
myimx6ek314-6s-512m_defconfig   myimx6ek314-6s-1g_defconfig     myimx6ek314-6s-128m_defconfig  
myimx6ek314-6qp-1g_defconfig    myimx6ek314-6qp-2g_defconfig    myimx6ek314-6qp-512m_defconfig  

********** MY-IMX6-EK336 **********
myimx6ek336-6q-1g_defconfig     myimx6ek336-6q-2g_defconfig     myimx6ek336-6q-512m_defconfig  

执行编译
=====> Input:
make

=====> Output:
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config.h
  UPD     include/config.h
  GEN     include/autoconf.mk
  GEN     include/autoconf.mk.dep
  CHK     include/config/uboot.release
  CHK     include/generated/timestamp_autogenerated.h
  CFG     u-boot.cfg
  ......
  LD      u-boot
  OBJCOPY u-boot-nodtb.bin
  OBJCOPY u-boot.srec
  SYM     u-boot.sym
  COPY    u-boot.bin
  CFGS    board/myzr/myimx6/myimx6a7-6y-ddr3.cfg.cfgtmp
  MKIMAGE u-boot.imx
Note: 如果有提示 “cc1: error”，通常是交叉编译工具的配置没生效，可以按前面 “交叉编译工具链安装” 中的 “source 工具链配置文件” 操作一次后再执行此步骤。
· u-boot 目标文件
u-boot.imx 即目标文件。


3.3  编译u-boot环境变量脚本=====> Input:
mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "myzr bootscripts" -d board/myzr/bootscripts/myimx6a7_l4115_emmc_script.cmd my_environment_emmc.scr

=====> Output:
Image Name:   myzr bootscripts
Created:      Wed Jan  2 09:40:40 2019
Image Type:   ARM Linux Script (uncompressed)
Data Size:    1450 Bytes = 1.42 kB = 0.00 MB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 1442 Bytes = 1.41 kB = 0.00 MB

3.4  目标文件u-boot.imx 和 my_environment_emmc.scr 即编译得到的目标文件，保存这两个文件

4  内核编译4.1  编译前的准备创建编译工作目录
=====> Input:
mkdir ~/my-work/02_source/ -p

解压源码包到工作目录
=====> Input:
tar xf linux-4.1.15-svn*.tar.bz2 -C ~/my-work/02_source/

4.2  编译内核目标文件进入内核源码目录
=====> Input:
cd ~/my-work/02_source/linux-4.1.15

生成目标平台的 .config 文件
=====> Input:
make myimx6a9_defconfig

=====> Output:
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/zconf.lex.c
  SHIPPED scripts/kconfig/zconf.hash.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
Note: 如果有“Can't find default configuration "arch/x86/configs” 的错误，是因为交叉编译工具链的配置没有生效，可以按前面 “交叉编译工具链安装” 中的 “source 工具链配置文件” 操作一次后再执行此步骤
【注意】：上面 make 后面的 myimx6a7_defconfig 改为与开发板型号对应的配置文件。


********** MY-IMX6-EK140、MY-IMX6-EK140P **********
myimx6a7_defconfig  

********** MY-IMX6-EK200、MY-IMX6-EK314、MY-IMX6-EK336 **********
myimx6a9_defconfig  

编译内核目标文件
=====> Input:
make zImage

=====> Output:
scripts/kconfig/conf --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  UPD     include/config/kernel.release
  WRAP    arch/arm/include/generated/asm/auxvec.h
  ......
  AS      arch/arm/boot/compressed/piggy.lzo.o
  LD      arch/arm/boot/compressed/vmlinux
  OBJCOPY arch/arm/boot/zImage
  Kernel: arch/arm/boot/zImage is ready
内核目标文件
arch/arm/boot/zImage 即内核目标文件

【下章节为明远智睿MY-IMX6 Linux-4.1.15 编译参考手册（3）】