一、编译uboot
1. 获取uboot源码（2020.10版本）
下载链接：en.SOURCES-u-boot-stm32mp1-openstlinux-5-10-dunfell-mp1-21-11-17_tar.xz
下载后解压：
mv en.SOURCES-u-boot-stm32mp1-openstlinux-5-10-dunfell-mp1-21-11-17_tar.xz en.SOURCES-u-boot-stm32mp1-openstlinux-5-10-dunfell-mp1-21-11-17.tar.xz
tar -xvf en.SOURCES-u-boot-stm32mp1-openstlinux-5-10-dunfell-mp1-21-11-17.tar.xz
里面分为源码和patch文件：
u-boot-stm32mp-v2020.10-stm32mp-r2-r0 U-Boot installation directory
├── [*].patch ST patches to apply during the U-Boot preparation (see next chapter)
├── u-boot-stm32mp-v2020.10-stm32mp-r2 U-Boot source code directory
├── Makefile.sdk Makefile for the U-Boot compilation
├── README.HOW_TO.txt Helper file for U-Boot management: reference for U-Boot build
├── series List of all ST patches to apply
└── u-boot-stm32mp-v2020.10-stm32mp-r2-r0.tar.gz Tarball file of the U-Boot source code
解压源码：
tar -zxvf u-boot-stm32mp-v2020.10-stm32mp-r2-r0.tar.gz
The FIP artifacts directory is named FIP_artifacts:
FIP_artifacts
├── arm-trusted-firmware
│ ├── bl32
│ │ ├── stm32mp157a-dk1-bl32.dtb Device tree for TF-A → STM32MP15 Discovery kits
│ │ ├── stm32mp157a-ev1-bl32.dtb Device tree for TF-A → STM32MP15 Evaluation boards
│ │ ├── stm32mp157c-dk2-bl32.dtb Device tree for TF-A → STM32MP15 Discovery kits
│ │ ├── stm32mp157c-ed1-bl32.dtb Device tree for TF-A → STM32MP15 Evaluation boards
│ │ ├── stm32mp157c-ev1-bl32.dtb Device tree for TF-A → STM32MP15 Evaluation boards
│ │ ├── stm32mp157d-dk1-bl32.dtb Device tree for TF-A → STM32MP15 Discovery kits
│ │ ├── stm32mp157d-ev1-bl32.dtb Device tree for TF-A → STM32MP15 Evaluation boards
│ │ ├── stm32mp157f-dk2-bl32.dtb Device tree for TF-A → STM32MP15 Discovery kits
│ │ ├── stm32mp157f-ed1-bl32.dtb Device tree for TF-A → STM32MP15 Evaluation boards
│ │ ├── stm32mp157f-ev1-bl32.dtb Device tree for TF-A → STM32MP15 Evaluation boards
│ │ └── tf-a-bl32-stm32mp15.bin Binary file for bl32 stage
│ └── fwconfig
│ ├── stm32mp157a-dk1-fw-config-optee.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157a-dk1-fw-config-trusted.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157a-ev1-fw-config-optee.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157a-ev1-fw-config-trusted.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157c-dk2-fw-config-optee.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157c-dk2-fw-config-trusted.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157c-ed1-fw-config-optee.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157c-ed1-fw-config-trusted.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157c-ev1-fw-config-optee.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157c-ev1-fw-config-trusted.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157d-dk1-fw-config-optee.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157d-dk1-fw-config-trusted.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157d-ev1-fw-config-optee.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157d-ev1-fw-config-trusted.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157f-dk2-fw-config-optee.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157f-dk2-fw-config-trusted.dtb Device tree for FW config → STM32MP15 Discovery kits
│ ├── stm32mp157f-ed1-fw-config-optee.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157f-ed1-fw-config-trusted.dtb Device tree for FW config → Evaluation boards
│ ├── stm32mp157f-ev1-fw-config-optee.dtb Device tree for FW config → Evaluation boards
│ └── stm32mp157f-ev1-fw-config-trusted.dtb Device tree for FW config → Evaluation boards
├── optee
│ ├── tee-header_v2-stm32mp157a-dk1.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-header_v2-stm32mp157a-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-header_v2-stm32mp157c-dk2.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-header_v2-stm32mp157c-ed1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-header_v2-stm32mp157c-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-header_v2-stm32mp157d-dk1.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-header_v2-stm32mp157d-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-header_v2-stm32mp157f-dk2.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-header_v2-stm32mp157f-ed1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-header_v2-stm32mp157f-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pageable_v2-stm32mp157a-dk1.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pageable_v2-stm32mp157a-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pageable_v2-stm32mp157c-dk2.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pageable_v2-stm32mp157c-ed1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pageable_v2-stm32mp157c-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pageable_v2-stm32mp157d-dk1.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pageable_v2-stm32mp157d-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pageable_v2-stm32mp157f-dk2.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pageable_v2-stm32mp157f-ed1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pageable_v2-stm32mp157f-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pager_v2-stm32mp157a-dk1.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pager_v2-stm32mp157a-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pager_v2-stm32mp157c-dk2.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pager_v2-stm32mp157c-ed1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pager_v2-stm32mp157c-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pager_v2-stm32mp157d-dk1.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pager_v2-stm32mp157d-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ ├── tee-pager_v2-stm32mp157f-dk2.bin Binary file for OP-TEE OS → STM32MP15 Discovery kits
│ ├── tee-pager_v2-stm32mp157f-ed1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
│ └── tee-pager_v2-stm32mp157f-ev1.bin Binary file for OP-TEE OS → STM32MP15 Evaluation boards
├── u-boot
│ ├── u-boot-nodtb-stm32mp15.bin
│ ├── u-boot-stm32mp157a-dk1-trusted.dtb Device tree for U-Boot → STM32MP15 Discovery kits
│ ├── u-boot-stm32mp157a-ev1-trusted.dtb Device tree for U-Boot → STM32MP15 Evaluation boards
│ ├── u-boot-stm32mp157c-dk2-trusted.dtb Device tree for U-Boot → STM32MP15 Discovery kits
│ ├── u-boot-stm32mp157c-ed1-trusted.dtb Device tree for U-Boot → STM32MP15 Evaluation boards
│ ├── u-boot-stm32mp157c-ev1-trusted.dtb Device tree for U-Boot → STM32MP15 Evaluation boards
│ ├── u-boot-stm32mp157d-dk1-trusted.dtb Device tree for U-Boot → STM32MP15 Discovery kits
│ ├── u-boot-stm32mp157d-ev1-trusted.dtb Device tree for U-Boot → STM32MP15 Evaluation boards
│ ├── u-boot-stm32mp157f-dk2-trusted.dtb Device tree for U-Boot → STM32MP15 Discovery kits
│ ├── u-boot-stm32mp157f-ed1-trusted.dtb Device tree for U-Boot → STM32MP15 Evaluation boards
│ └── u-boot-stm32mp157f-ev1-trusted.dtb Device tree for U-Boot → STM32MP15 Evaluation boards
2. 编译uboot
2.1. 编译前的准备
（1）OpenSTLinux SDK 必须安装；
（2）编译内核需要安装的包：
llibncurses、libncursesw dev package、libyaml-dev：
sudo apt-get install libncurses5-dev libncursesw5-dev libyaml-dev
（3）确保SDK环境变量生效：
source STM32MP15-Ecosystem-v3.1.0/Developer-Package/SDK/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi
2. 2. uboot源码打patch
cd u-boot-stm32mp-v2020.10-stm32mp-r2/
for p in `ls -1 ../*.patch`; do patch -p1 < $p; done
2.3. 编译uboot
配置普通启动版本：
make stm32mp15_basic_defconfig
编译：
配置编译DK2板设备树：
make DEVICE_TREE=stm32mp157c-dk2 all
编译完成：
二、编译内核
1. 获取内核源码
下载链接：en.SOURCES-kernel-stm32mp1-openstlinux-5.10-dunfell-mp1-21-11-17.tar.xz
下载后解压：
tar xvf en.SOURCES-kernel-stm32mp1-openstlinux-5.10-dunfell-mp1-21-11-17.tar.xz
里面分为源码和patch文件：
linux-stm32mp-5.10.61-r2 Linux kernel installation directory
├── [*].patch ST patches to apply during the Linux kernel preparation (see next chapter)
├── fragment-[*].config ST configuration fragments to apply during the Linux kernel configuration (see next chapter)
├── linux-5.10.61 Linux kernel source code directory
├── linux-5.10.61.tar.xz Tarball file of the Linux kernel source code
├── README.HOW_TO.txt Helper file for Linux kernel management: reference for Linux kernel build
└── series List of all ST patches to apply
解压源码：
tar xvf linux-5.10.61.tar.xz
2. 编译kernel
参考 README.HOW_TO.txt 文档。
2.1. 编译前的准备
（1）OpenSTLinux SDK 必须安装；
（2）编译内核需要安装的包：
llibncurses、libncursesw dev package、libyaml-dev：
sudo apt-get install libncurses5-dev libncursesw5-dev libyaml-dev
mkimage：
sudo apt-get install u-boot-tools
yaml (check dts)：
sudo apt-get install libyaml-dev
（3）确保SDK环境变量生效：
source STM32MP15-Ecosystem-v3.1.0/Developer-Package/SDK/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi
2.2. 内核源代码打patch
cd linux-5.10.61/
for p in `ls -1 ../*.patch`; do patch -p1 < $p; done
2.3. 源码配置
方式：配置编译目录 (different of kernel source code directory）
创建build目录：
mkdir -p ../build
生成默认配置文件.config：
make ARCH=arm O="$PWD/../build" multi_v7_defconfig fragment*.config
循环应用 fragment*.config 文件（搞不懂干啥的，执行了之后编译会出错，所以不要执行）：
for f in `ls -1 ../fragment*.config`; do scripts/kconfig/merge_config.sh -m -r -O $PWD/../build $PWD/../build/.config $f; done
yes '' | make ARCH=arm oldconfig
2.4. 编译源码
编译内核：
make ARCH=arm uImage vmlinux dtbs LOADADDR=0xC2000040 O="$PWD/../build"
编译完成：
编译模块：
make ARCH=arm modules O="$PWD/../build"
