This commit adds the Cortex-A78 core, which is a armv8.2a ISA. See: [1] [2]. This CPU support was added in GCC 11. See [3] [4]. Buildroot commit771da1dd9"configs/nvidia_bf3_defconfig: new defconfig" [5] added the first defconfig for a board including this CPU. [1] https://developer.arm.com/Processors/Cortex-A78 [2] https://developer.arm.com/documentation/101430/0102/Functional-description/Introduction/About-the-core [3] https://gcc.gnu.org/gcc-11/changes.html [4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/aarch64/aarch64-cores.def;hb=releases/gcc-11.1.0#l98 [5]771da1dd9bSigned-off-by: Julien Olivain <ju.o@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>