DESK-MP1-L/Development/Building Boot image

Building Boot binary

Quick reference

Repository Information

URL	git@git.dave.eu:desk-mp1-l/desk-mp1-boot-image.git
stable branch	desk-mp1-l-1.x.x
stable tag	desk-mp1-l-1.0.0

Instructions

It is assumed that the development environment has been set up properly as described here.

To build the boot binaries you need to perform this steps:

• start the Linux development VM and login into the system
• open a terminal window and cd into desk-mp1-boot-image directory

cd ~/desk-mp1-l/desk-mp1-boot-image

• in case of needs you can update your local repository with the following git command

git pull --recurse-submodules

• configure the build environment

source ~/desk-mp1-l/desk-mp1-l-1.0.0_env.sh

• use the follow script:
  • build_start.sh: for build boot binary ATF + U-boot, the result can be find on boot-binary-files/uSD/.
  • build_and_put_to_tftpboot_dir.sh: for build boot binary ATF + U-boot and have the result on /tftpboot/desk-mp1-l/boot-binary-files/uSD/.
• on each script file there are configuration section

  #ATF_MD=SD \
  #ATF_LOGLEVEL=50 \ # if you set this, ATF_DEBUG will be ignored
  #ATF_DEBUG=1 \
  #OUTPUT_BINARY="$PWD/boot-binary-files" \
  #MAKECONF="-j 6 -l 10" \
  UBOOT_DTS=stm32mp157a-dcsb5000dd1r \
  UBOOT_DEF=stm32mp15_desk_mp1_usd_defconfig \
  ATF_DTS=stm32mp157a-dcsb5000dd1r \
  ./build_all.sh
  

• configurations:
  • ATF_MD: default value -> SD, media device from which to boot.
  • ATF_LOGLEVEL: default value -> 20, log level of ATF, if you change this value the ATF_DEBUG will be ignored.
  • ATF_DEBUG: default value -> 1, enable debug.
  • OUTPUT_BINARY: default value -> "$PWD/boot-binary-files", output binary directory.
  • MAKECONF: default value -> "-j 32 -l 50", configuration for makefile.
  • UBOOT_DTS: no default value, device tree name of u-boot to build, value needed for build!
  • UBOOT_DEF: no default value, name of defconfig to use on build of u-boot, value needed for build!
  • ATF_DTS: no default value, devce tree name of ATF to build, value needed for build!

• Default configuration (if not specified the default value is used):
  • boot from uSD:
    • UBOOT_DTS=stm32mp157a-dcsb5000dd1r
    • UBOOT_DEF=stm32mp15_desk_mp1_usd_defconfig
    • ATF_DTS=stm32mp157a-dcsb5000dd1r

U-Boot defconfigs

Platform	SOM ConfigID	CB ConfigID	defconfig
SBC ETRA	-	0x00000001	stm32mp15_desk_mp1_usd_defconfig