152 lines
5.4 KiB
Plaintext
152 lines
5.4 KiB
Plaintext
Compilation of U-Boot:
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1. Pre-requisite
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2. Initialise cross-compilation via SDK
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3. Prepare U-Boot source code
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4. Management of U-Boot source code
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5. Compile U-Boot source code
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6. Update software on board
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1. Pre-requisite:
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-----------------
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OpenSTLinux SDK must be installed.
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For U-Boot build you need to install:
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* libncurses and libncursesw dev package
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- Ubuntu: sudo apt-get install libncurses5-dev libncursesw5-dev
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- Fedora: sudo yum install ncurses-devel
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* git:
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- Ubuntu: sudo apt-get install git-core gitk
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- Fedora: sudo yum install git
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If you have never configured you git configuration:
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$ git config --global user.name "your_name"
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$ git config --global user.email "your_email@example.com"
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2. Initialize cross-compilation via SDK:
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---------------------------------------
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* Source SDK environment:
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$ source <path to SDK>/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi
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* To verify if you cross-compilation environment are put in place:
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$ set | grep CROSS
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CROSS_COMPILE=arm-ostl-linux-gnueabi-
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Warning: the environment are valid only on the shell session where you have
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sourced the sdk environment.
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3. Prepare U-Boot source:
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------------------------
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Extract the sources from tarball, for example:
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$ tar xfJ SOURCES-st-image-weston-openstlinux-weston-stm32mp1-*.tar.xz
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In the U-Boot source directory (sources/*/##BP##-##PR##),
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you have one U-Boot source tarball, the patches and one Makefile:
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- ##BP##-##PR##.tar.gz
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- 000*.patch
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- Makefile.sdk
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NB: if you would like to have a git management on the code see
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section 4 [Management of U-Boot source code with GIT]
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Then you must extract the tarball and apply the patch:
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$> tar xfz ##BP##-##PR##.tar.gz
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$> cd ##BP##
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$> for p in `ls -1 ../*.patch`; do patch -p1 < $p; done
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4. Management of U-Boot source code with GIT
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--------------------------------------------
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If you like to have a better management of change made on U-Boot source,
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you have 3 solutions to use git
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4.1 Get STMicroelectronics U-Boot source from GitHub
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URL: https://github.com/STMicroelectronics/u-boot.git
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Branch: ##ARCHIVER_ST_BRANCH##
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Revision: ##ARCHIVER_ST_REVISION##
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$ git clone https://github.com/STMicroelectronics/u-boot.git
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$ git checkout -b WORKING ##ARCHIVER_ST_REVISION##
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4.2 Create Git from tarball
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$ tar xfz ##BP##-##PR##.tar.gz
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$ cd ##BP##
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$ test -d .git || git init . && git add . && git commit -m "U-Boot source code" && git gc
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$ git checkout -b WORKING
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$ for p in `ls -1 ../*.patch`; do git am $p; done
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4.3 Get Git from community and apply STMicroelectronics patches
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URL: git://git.denx.de/u-boot.git
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Branch: ##ARCHIVER_COMMUNITY_BRANCH##
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Revision: ##ARCHIVER_COMMUNITY_REVISION##
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$ git clone git://git.denx.de/u-boot.git
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or
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$ git clone http://git.denx.de/u-boot.git
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$ cd u-boot
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$ git checkout -b WORKING ##ARCHIVER_COMMUNITY_REVISION##
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$ for p in `ls -1 ../*.patch`; do git am $p; done
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5. Compilation U-Boot source code:
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----------------------------------
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To compile U-Boot source code, first move to U-Boot source:
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$ cd ##BP##
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or
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$ cd u-boot
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5.1 Compilation for one target (one defconfig, one device tree) - and no FIP
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see <U-Boot source>/board/st/stm32mp1/README for details
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$ make stm32mp15_<config>_defconfig
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$ make DEVICE_TREE=<device tree> all
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example:
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a) trusted boot on ev1
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$ make stm32mp15_trusted_defconfig
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$ make DEVICE_TREE=stm32mp157c-ev1 all
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b) basic boot on dk2
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$ make stm32mp15_basic_defconfig
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$ make DEVICE_TREE=stm32mp157c-dk2 all
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5.2 Compilation for several targets: use Makefile.sdk (with FIP)
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Calls the specific 'Makefile.sdk' provided to compile U-Boot:
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- Display 'Makefile.sdk' file default configuration and targets:
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$ make -f $PWD/../Makefile.sdk help
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As mentionned in help, OpenSTLinux has activated FIP by default, so the FIP_artifacts should be specified
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- In case of using SOURCES-xxxx.tar.gz of Developer package the FIP_DEPLOYDIR_ROOT should be set as below:
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$> export FIP_DEPLOYDIR_ROOT=$PWD/../../FIP_artifacts
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- Compile default U-Boot configuration:
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$> make -f $PWD/../Makefile.sdk all
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Default U-Boot configuration is done in 'Makefile.sdk' file through specific variables
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'BOOT_CONFIG', 'UBOOT_DEFCONFIG', 'UBOOT_BINARY' and 'UBOOT_DEVICETREE':
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- 'UBOOT_CONFIG' is the name to append to U-boot binaries (ex: 'trusted', etc).
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ex: UBOOT_CONFIG=trusted
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- 'UBOOT_DEFCONFIG' is the name of U-Boot defconfig to build
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ex: UBOOT_DEFCONFIG=stm32mp15_trusted_defconfig
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- 'UBOOT_BINARY' is the U-Boot binary to export (ex: 'u-boot.dtb', 'u-boot.img', etc)
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ex: UBOOT_BINARY=u-boot.dtb
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- 'UBOOT_DEVICETREE' is a list of device tree to build, using 'space' as separator.
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ex: UBOOT_DEVICETREE="<devicetree1> <devicetree2>"
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The generated FIP images are available in $FIP_DEPLOYDIR_ROOT/fip
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You can override the default U-Boot configuration if you specify these variables:
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- Compile default U-Boot configuration but applying specific devicetree(s):
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$ make -f $PWD/../Makefile.sdk all DEVICETREE="<devicetree1> <devicetree2>"
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- Compile for a specific U-Boot configuration:
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$ make -f $PWD/../Makefile.sdk all UBOOT_CONFIG=trusted UBOOT_DEFCONFIG=stm32mp15_trusted_defconfig UBOOT_BINARY=u-boot.dtb DEVICETREE=stm32mp157f-dk2
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6. Update software on board:
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----------------------------
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Please use STM32CubeProgrammer and only tick the ssbl-boot and fip partition (more informations on the wiki website http://wiki.st.com/stm32mpu)
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