Hi Sahil,
Am 2021-12-10 07:33, schrieb Sahil Malhotra (OSS):
DT nodes can be statically disabled if we know that they are held by
HAB and
are not released to NS World.
OP-TEE does set the status itself via dt_enable_secure_status(), which
should present the properly configured FDT when U-Boot takes over.
Yes, OP-TEE set the status by dt_enable_secure_status() in DTB overlay
which gets merged with DTB provided for Linux bootup and then Linux
boots with merged DTB.
But u-boot uses the DTB embedded in its image. How can we modify that
DTB or merge DTB overlay passed by OP-TEE with uboot DTB ?
But then u-boot has the "wrong" dtb. What is the reason, there is an
overlay instead of a whole dtb? what if the overlay doesn't match
the dtb?
-michael
