1.解压标准 tf-a 源码包：

tar xfz tf-a-stm32mp-2.2.r2-r0.tar.gz

2.将 ST 官方补丁文件打到 tf-a 源码中：

 3.配置交叉编译工具链：

进入~/FSMP1A/tf-a-stm32mp-2.2.r2-r0$ 目录下，打开Makefile.sdk 将如下内容进行更改

 

 

4.复制设备树:

cp fdts/stm32mp15xx-dkx.dtsi fdts/stm32mp15xx-fsmp1x.dtsi

cp fdts/stm32mp157a-dk1.dts fdts/stm32mp157a-fsmp1a.dts

修改上层目录下的 Makefile.sdk 编译脚本在 TFA_DEVICETREE 配置项中添加 stm32mp157a-fsmp1a

 

修改 fdts/stm32mp157a-fsmp1a.dts 将#include "stm32mp15xx-dkx.dtsi" 修改为#include "stm32mp15xx-fsmp1x.dtsi"

 

 

5.编译源码

make -f $PWD/../Makefile.sdk TFA_DEVICETREE=stm32mp157a-fsmp1a TF_A_CONFIG=trusted ELF_DEBUG_ENABLE='1' all

编译完成得到以下目录：

 

6.烧写tf卡

进入/home/ubuntu/FSMP1A/tf-a-stm32mp-2.2.r2-r0/build/trusted目录下，执行以下指令

sudo dd if=tf-a-stm32mp157a-fsmp1a-trusted.stm32 of=/dev/sdb1 conv=fdatasync

 

sudo dd if=tf-a-stm32mp157a-fsmp1a-trusted.stm32 of=/dev/sdb2 conv=fdatasync

 

进入/home/ubuntu/FSMP1A/u-boot-stm32mp-v2020.10-stm32mp-r2-r0/u-boot-stm32mp-v2020.10-stm32mp-r2目录下，执行以下指令

sudo dd if=u-boot-stm32mp157a-fsmp1a-trusted.stm32 of=/dev/sdb3 conv=fdatasync

 

7.测试