kasuh@kasuh-HP-ProBook-4421s:~/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11$ make -f $PWD/../Makefile.sdk all

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  /home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11 is not clean, please run 'make mrproper'
  in the '/home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11' directory.
/home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11/Makefile:1440: recipe for target 'prepare3' failed
make[2]: *** [prepare3] Error 1
make[2]: Leaving directory '/home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/build-trusted'
Makefile:148: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
make[1]: Leaving directory '/home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11'
cp: cannot stat '/home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11/../build-trusted/u-boot.stm32': No such file or directory
cp: cannot stat '/home/kasuh/stm/Developer-Package/stm32mp1-openstlinux-20-02-19/sources/arm-ostl-linux-gnueabi/u-boot-stm32mp-2018.11-r0/u-boot-2018.11/../build-trusted/u-boot': No such file or directory