uboot-phytec

arm: mach-k3: security: Clean image out of cache before authentication

On K3 systems U-Boot runs on both an R5 and a large ARM cores (usually
A53 or A72). The large ARMs are coherent with the DMA controllers and
the SYSFW that perform authentication. And previously the R5 core did
not enable caches. Now that R5 does enable caching we need to be sure
to clean out any of the image that may still only be in cache before we
read it using external DMA for authentication. Do this here.

Signed-off-by: Andrew F. Davis <afd@ti.com>