imx8mmevk - Enabling the secure boot support in U-Boot - Unable to find defconfig & Kconfig files

[autoamp]

Hello Team,

Am trying to implement and verify secure boot on imx8mmevk.

with reference to i.MX8M family Secure Boot guide using HABv4, we need to enable secure boot support in U-Boot by doing two tasks.

• Defconfig: CONFIG_IMX_HAB=y
• Kconfig: ARM architecture -> Support i.MX HAB features

Unfortunately am unable to find those files in my build-env.

Currently we are using yocto project for building images.

- I looked under dir /meta-imx/meta-bsp/conf/machine for editing machine file. It didn't worked? What am I missing here?

Ref:

- i.MX8M family Secure Boot guide using HABv4 

- AN12312

[Yuri]

@autoamp 
Hello,

  It is needed to add "CONFIG_IMX_HAB=y" to Your defconfig file  (imx8mm_evk_defconfig).

Regards,
Yuri.