c39f677e6a
This commit adds the Cortex-A710 core, which is an implementation of
the armv9.0a ISA. See: [1] [2].
This CPU support was added in GCC 12. See [3] [4].
Cortex-A710 support has been added in QEmu in commit [5], first
included in v8.2.0.
This CPU supports Aarch32 only in EL0 (user-space). This means it's
technically possible to compile Aarch32 code targeting. GCC has the
support to do so. Since Buildroot recompiles a full system (ATF,
Kernel, user-space) this support has limited value. This is why this
CPU is limited to 64bit builds only.
[1] https://developer.arm.com/Processors/Cortex-A710
[2] https://developer.arm.com/documentation/101800/0201/The-Cortex-A710--core/Cortex-A710--core-features
[3] https://gcc.gnu.org/gcc-12/changes.html
[4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/aarch64/aarch64-cores.def;hb=releases/gcc-12.1.0#l163
[5] e3d45c0a89
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>