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Arm Trusted Firmware (TF-A) can be used to load U-Boot or another bootloader, which in turn loads the Linux kernel. However, TF-A is capable of loading the kernel directly. To this end, we need to define the BL33 and BL33_CFG compile options containing, respectively, the zImage and the DTB. This config introduces a new config option, BR2_TARGET_ARM_TRUSTED_FIRMWARE_LINUX_AS_BL33, which sets the BL33 and BL33_CFG parameters, and ensures that the kernel is built before the TF-A by having linux as a _DEPENDENCY of the TF-A. Signed-off-by: Jakob Kastelic <kastelic.jakob@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>